rev |
line source |
jbe@209
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1
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jbe@209
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2 #ifndef __has_include
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jbe@209
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3 #define __has_include(x) 0
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jbe@209
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4 #endif
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jbe@79
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5
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jbe@79
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6 #include <stdlib.h>
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jbe@135
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7 #include <stdint.h>
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jbe@135
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8 #include <string.h>
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jbe@135
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9 #include <errno.h>
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jbe@79
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10 #include <unistd.h>
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jbe@135
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11 #include <signal.h>
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jbe@135
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12 #include <fcntl.h>
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jbe@135
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13 #include <sys/stat.h>
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jbe@79
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14 #include <sys/socket.h>
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jbe@111
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15 #include <sys/un.h>
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jbe@95
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16 #include <netinet/in.h>
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jbe@95
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17 #include <netinet/tcp.h>
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jbe@135
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18 #include <sys/select.h>
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jbe@136
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19 #include <time.h>
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jbe@135
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20 #include <netdb.h>
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jbe@107
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21 #include <arpa/inet.h>
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jbe@205
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22 #include <sys/types.h>
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jbe@205
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23 #include <sys/wait.h>
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jbe@209
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24 #if defined(__linux__) || __has_include(<bsd/unistd.h>)
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jbe@209
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25 #include <bsd/unistd.h>
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jbe@209
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26 #endif
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jbe@211
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27
|
jbe@243
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28 #ifdef MOONBR_IO_USE_TLS
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jbe@243
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29 #include <tls.h>
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jbe@243
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30 #endif
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jbe@243
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31
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jbe@79
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32 #include <lua.h>
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jbe@79
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33 #include <lauxlib.h>
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jbe@79
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34 #include <lualib.h>
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jbe@79
|
35
|
jbe@149
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36 #include <assert.h>
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jbe@149
|
37
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jbe@80
|
38 #define MOONBR_IO_MAXSTRERRORLEN 80
|
jbe@85
|
39 #define MOONBR_IO_READBUFLEN 4096
|
jbe@80
|
40 #define MOONBR_IO_WRITEBUFLEN 4096
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jbe@80
|
41
|
jbe@108
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42 #define MOONBR_IO_LISTEN_BACKLOG 1024
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jbe@108
|
43
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jbe@213
|
44 #define MOONBR_IO_STRERROR_R_MSG "Error detail unavailable due to noncompliant strerror_r() implementation"
|
jbe@80
|
45 #define moonbr_io_errmsg() \
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jbe@213
|
46 char errmsg[MOONBR_IO_MAXSTRERRORLEN] = MOONBR_IO_STRERROR_R_MSG; \
|
jbe@80
|
47 strerror_r(errno, errmsg, MOONBR_IO_MAXSTRERRORLEN)
|
jbe@80
|
48
|
jbe@79
|
49 #define MOONBR_IO_HANDLE_MT_REGKEY "moonbridge_io_handle"
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jbe@79
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50 #define MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY "moonbridge_io_handle_public"
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jbe@108
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51 #define MOONBR_IO_LISTENER_MT_REGKEY "moonbridge_io_listener"
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jbe@205
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52 #define MOONBR_IO_CHILD_MT_REGKEY "moonbridge_io_child"
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jbe@205
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53 #define MOONBR_IO_CHILD_PT_REGKEY "moonbridge_io_child_pt"
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jbe@79
|
54
|
jbe@243
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55 #ifdef MOONBR_IO_USE_TLS
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jbe@243
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56 #define MOONBR_IO_TLSCONF_MT_REGKEY "moonbridge_io_tlsconf"
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jbe@243
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57 #endif
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jbe@243
|
58
|
jbe@79
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59 typedef struct {
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jbe@79
|
60 int fd;
|
jbe@107
|
61 int issock;
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jbe@107
|
62 sa_family_t addrfam;
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jbe@94
|
63 int finished;
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jbe@94
|
64 int closed;
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jbe@81
|
65 int nonblocking;
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jbe@95
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66 int nopush;
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jbe@85
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67 int readerr;
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jbe@105
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68 int readbufin;
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jbe@105
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69 int readbufout;
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jbe@81
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70 int writeerr;
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jbe@83
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71 size_t writeleft;
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jbe@132
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72 size_t flushedleft;
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jbe@83
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73 #if LUA_VERSION_NUM >= 503
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jbe@83
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74 lua_Integer writeqin;
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jbe@83
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75 lua_Integer writeqout;
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jbe@83
|
76 #else
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jbe@83
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77 int writeqin;
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jbe@83
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78 int writeqout;
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jbe@83
|
79 #endif
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jbe@83
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80 size_t writeqoff;
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jbe@103
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81 int writebufin;
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jbe@103
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82 int writebufout;
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jbe@85
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83 char readbuf[MOONBR_IO_READBUFLEN];
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jbe@80
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84 char writebuf[MOONBR_IO_WRITEBUFLEN];
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jbe@79
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85 } moonbr_io_handle_t;
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jbe@79
|
86
|
jbe@108
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87 typedef struct {
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jbe@108
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88 int fd;
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jbe@118
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89 sa_family_t addrfam;
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jbe@108
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90 int nonblocking;
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jbe@108
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91 } moonbr_io_listener_t;
|
jbe@108
|
92
|
jbe@205
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93 typedef struct {
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jbe@205
|
94 pid_t pid;
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jbe@205
|
95 } moonbr_io_child_t;
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jbe@205
|
96
|
jbe@148
|
97 static int moonbr_io_yield(lua_State *L) {
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jbe@149
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98 return lua_yield(L, lua_gettop(L));
|
jbe@140
|
99 }
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jbe@140
|
100
|
jbe@140
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101 #if LUA_VERSION_NUM >= 503
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jbe@140
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102 static int moonbr_io_cont_returnall(lua_State *L, int status, lua_KContext ctx) {
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jbe@140
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103 #else
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jbe@140
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104 static int moonbr_io_cont_returnall(lua_State *L) {
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jbe@140
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105 #endif
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jbe@140
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106 return lua_gettop(L);
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jbe@140
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107 }
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jbe@140
|
108
|
jbe@145
|
109 #define moonbr_io_yield_wrapper(yieldfunc, callfunc) \
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jbe@145
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110 static int yieldfunc(lua_State *L) { \
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jbe@145
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111 int args; \
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jbe@145
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112 lua_pushcfunction(L, callfunc); \
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jbe@145
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113 lua_insert(L, 1); \
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jbe@145
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114 args = lua_gettop(L); \
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jbe@148
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115 lua_pushcfunction(L, moonbr_io_yield); \
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jbe@145
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116 lua_insert(L, 3); \
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jbe@145
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117 lua_callk(L, args, LUA_MULTRET, 0, moonbr_io_cont_returnall); \
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jbe@145
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118 return lua_gettop(L); \
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jbe@145
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119 }
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jbe@145
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120
|
jbe@81
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121 static void moonbr_io_handle_set_nonblocking(lua_State *L, moonbr_io_handle_t *handle, int nonblocking) {
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jbe@95
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122 int flags;
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jbe@95
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123 if (handle->nonblocking == nonblocking) return;
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jbe@95
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124 flags = fcntl(handle->fd, F_GETFL, 0);
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jbe@95
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125 if (flags == -1) {
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jbe@95
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126 moonbr_io_errmsg();
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jbe@96
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127 close(handle->fd);
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jbe@96
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128 handle->fd = -1;
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jbe@96
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129 handle->closed = 1;
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jbe@95
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130 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
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jbe@81
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131 }
|
jbe@95
|
132 if (nonblocking) flags |= O_NONBLOCK;
|
jbe@95
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133 else flags &= ~O_NONBLOCK;
|
jbe@95
|
134 if (fcntl(handle->fd, F_SETFL, flags) == -1) {
|
jbe@95
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135 moonbr_io_errmsg();
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jbe@96
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136 close(handle->fd);
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jbe@96
|
137 handle->fd = -1;
|
jbe@96
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138 handle->closed = 1;
|
jbe@95
|
139 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
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jbe@95
|
140 }
|
jbe@95
|
141 handle->nonblocking = nonblocking;
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jbe@81
|
142 }
|
jbe@81
|
143
|
jbe@87
|
144 static void moonbr_io_handle_set_linger(lua_State *L, moonbr_io_handle_t *handle, int timeout) {
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jbe@87
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145 struct linger lingerval = { 0, };
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jbe@107
|
146 if (!handle->issock) return;
|
jbe@87
|
147 if (timeout >= 0) {
|
jbe@87
|
148 lingerval.l_onoff = 1;
|
jbe@87
|
149 lingerval.l_linger = timeout;
|
jbe@87
|
150 }
|
jbe@87
|
151 if (setsockopt(handle->fd, SOL_SOCKET, SO_LINGER, &lingerval, sizeof(lingerval))) {
|
jbe@87
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152 moonbr_io_errmsg();
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jbe@96
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153 close(handle->fd);
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jbe@96
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154 handle->fd = -1;
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jbe@96
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155 handle->closed = 1;
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jbe@95
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156 luaL_error(L, "Unexpected error while setting SO_LINGER with setsockopt: %s", errmsg);
|
jbe@87
|
157 }
|
jbe@87
|
158 }
|
jbe@87
|
159
|
jbe@133
|
160 static inline void moonbr_io_handle_set_nopush(lua_State *L, moonbr_io_handle_t *handle, int nopush) {
|
jbe@96
|
161 #if defined(TCP_NOPUSH) || defined(TCP_CORK)
|
jbe@107
|
162 if (
|
jbe@107
|
163 !(handle->addrfam == AF_INET6 || handle->addrfam == AF_INET) ||
|
jbe@107
|
164 handle->nopush == nopush
|
jbe@107
|
165 ) return;
|
jbe@96
|
166 #if defined(TCP_NOPUSH)
|
jbe@96
|
167 if (setsockopt(handle->fd, IPPROTO_TCP, TCP_NOPUSH, &nopush, sizeof(nopush))) {
|
jbe@104
|
168 #elif defined(TCP_CORK)
|
jbe@104
|
169 if (setsockopt(handle->fd, IPPROTO_TCP, TCP_CORK, &nopush, sizeof(nopush))) {
|
jbe@104
|
170 #endif
|
jbe@96
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171 moonbr_io_errmsg();
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jbe@96
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172 close(handle->fd);
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jbe@96
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173 handle->fd = -1;
|
jbe@96
|
174 handle->closed = 1;
|
jbe@104
|
175 #if defined(TCP_NOPUSH)
|
jbe@96
|
176 luaL_error(L, "Unexpected error while setting TCP_NOPUSH with setsockopt: %s", errmsg);
|
jbe@96
|
177 #elif defined(TCP_CORK)
|
jbe@95
|
178 luaL_error(L, "Unexpected error while setting TCP_CORK with setsockopt: %s", errmsg);
|
jbe@104
|
179 #endif
|
jbe@95
|
180 }
|
jbe@95
|
181 handle->nopush = nopush;
|
jbe@96
|
182 #else
|
jbe@96
|
183 #warning Neither TCP_NOPUSH nor TCP_CORK is available
|
jbe@96
|
184 #endif
|
jbe@95
|
185 }
|
jbe@95
|
186
|
jbe@86
|
187 static int moonbr_io_read_impl(lua_State *L, int nonblocking, int drain) {
|
jbe@85
|
188 moonbr_io_handle_t *handle;
|
jbe@85
|
189 lua_Integer maxread;
|
jbe@85
|
190 const char *terminatorstr;
|
jbe@210
|
191 size_t terminatorlen;
|
jbe@210
|
192 char terminator = 0; /* initialize to avoid compiler warning */
|
jbe@85
|
193 luaL_Buffer luabuf;
|
jbe@85
|
194 size_t luabufcnt = 0;
|
jbe@105
|
195 int remaining;
|
jbe@85
|
196 char *terminatorpos;
|
jbe@103
|
197 ssize_t bytesread;
|
jbe@85
|
198 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@153
|
199 maxread = luaL_optinteger(L, 2, -1);
|
jbe@85
|
200 terminatorstr = luaL_optlstring(L, 3, "", &terminatorlen);
|
jbe@85
|
201 if (terminatorlen) {
|
jbe@85
|
202 luaL_argcheck(L, terminatorlen == 1, 3, "single byte expected");
|
jbe@85
|
203 terminator = terminatorstr[0];
|
jbe@85
|
204 }
|
jbe@86
|
205 lua_settop(L, 1); /* return handle on drain, terminator string may be garbage collected */
|
jbe@94
|
206 if (handle->closed) luaL_error(L, "Attempt to read from a closed I/O handle");
|
jbe@85
|
207 if (handle->readerr) {
|
jbe@85
|
208 lua_pushnil(L);
|
jbe@85
|
209 lua_pushliteral(L, "Previous read error");
|
jbe@85
|
210 return 2;
|
jbe@85
|
211 }
|
jbe@143
|
212 if (handle->fd < 0) {
|
jbe@143
|
213 /* fake EOF to simulate shutdown */
|
jbe@143
|
214 if (!drain) lua_pushliteral(L, "");
|
jbe@143
|
215 else lua_pushinteger(L, 0);
|
jbe@143
|
216 lua_pushliteral(L, "eof");
|
jbe@143
|
217 return 2;
|
jbe@143
|
218 }
|
jbe@105
|
219 handle->readerr = 1;
|
jbe@85
|
220 moonbr_io_handle_set_nonblocking(L, handle, nonblocking);
|
jbe@86
|
221 if (!drain) luaL_buffinit(L, &luabuf);
|
jbe@85
|
222 while (1) {
|
jbe@105
|
223 remaining = -1;
|
jbe@142
|
224 terminatorpos = NULL;
|
jbe@105
|
225 if (
|
jbe@153
|
226 maxread >= 0 &&
|
jbe@143
|
227 handle->readbufin - handle->readbufout >= (size_t)maxread - luabufcnt
|
jbe@105
|
228 ) {
|
jbe@142
|
229 remaining = (size_t)maxread - luabufcnt;
|
jbe@193
|
230 if (terminatorlen) {
|
jbe@193
|
231 terminatorpos = memchr(
|
jbe@193
|
232 handle->readbuf + handle->readbufout,
|
jbe@193
|
233 terminator,
|
jbe@193
|
234 remaining
|
jbe@193
|
235 );
|
jbe@193
|
236 }
|
jbe@85
|
237 } else if (terminatorlen) {
|
jbe@105
|
238 terminatorpos = memchr(
|
jbe@105
|
239 handle->readbuf + handle->readbufout,
|
jbe@105
|
240 terminator,
|
jbe@105
|
241 handle->readbufin - handle->readbufout
|
jbe@105
|
242 );
|
jbe@85
|
243 }
|
jbe@142
|
244 if (terminatorpos) remaining = 1 + (
|
jbe@142
|
245 terminatorpos - (handle->readbuf + handle->readbufout)
|
jbe@142
|
246 );
|
jbe@105
|
247 if (remaining >= 0) {
|
jbe@86
|
248 if (!drain) {
|
jbe@105
|
249 luaL_addlstring(
|
jbe@105
|
250 &luabuf,
|
jbe@105
|
251 handle->readbuf + handle->readbufout,
|
jbe@105
|
252 remaining
|
jbe@105
|
253 );
|
jbe@86
|
254 luaL_pushresult(&luabuf);
|
jbe@90
|
255 } else {
|
jbe@105
|
256 lua_pushinteger(L, luabufcnt + remaining);
|
jbe@86
|
257 }
|
jbe@143
|
258 if (terminatorpos) lua_pushliteral(L, "term");
|
jbe@143
|
259 else lua_pushliteral(L, "maxlen");
|
jbe@105
|
260 handle->readbufout += remaining;
|
jbe@105
|
261 if (handle->readbufout == handle->readbufin) {
|
jbe@105
|
262 handle->readbufin = 0;
|
jbe@143
|
263 handle->readbufout = 0;
|
jbe@105
|
264 }
|
jbe@104
|
265 handle->readerr = 0;
|
jbe@143
|
266 return 2;
|
jbe@85
|
267 }
|
jbe@105
|
268 if (!drain) luaL_addlstring(
|
jbe@105
|
269 &luabuf,
|
jbe@105
|
270 handle->readbuf + handle->readbufout,
|
jbe@105
|
271 handle->readbufin - handle->readbufout
|
jbe@105
|
272 );
|
jbe@105
|
273 luabufcnt += handle->readbufin - handle->readbufout;
|
jbe@143
|
274 handle->readbufout = 0;
|
jbe@85
|
275 do {
|
jbe@103
|
276 bytesread = read(handle->fd, handle->readbuf, MOONBR_IO_READBUFLEN);
|
jbe@103
|
277 } while (bytesread < 0 && (errno == EINTR));
|
jbe@105
|
278 if (
|
jbe@105
|
279 bytesread == 0 || (
|
jbe@105
|
280 nonblocking &&
|
jbe@105
|
281 bytesread < 0 && (errno == EAGAIN || errno == EWOULDBLOCK)
|
jbe@105
|
282 )
|
jbe@105
|
283 ) {
|
jbe@105
|
284 handle->readbufin = 0;
|
jbe@143
|
285 if (!drain) luaL_pushresult(&luabuf);
|
jbe@143
|
286 else lua_pushinteger(L, luabufcnt);
|
jbe@143
|
287 if (bytesread == 0) lua_pushliteral(L, "eof");
|
jbe@143
|
288 else lua_pushliteral(L, "block");
|
jbe@105
|
289 handle->readerr = 0;
|
jbe@143
|
290 return 2;
|
jbe@105
|
291 }
|
jbe@103
|
292 if (bytesread < 0) {
|
jbe@85
|
293 moonbr_io_errmsg();
|
jbe@85
|
294 lua_pushnil(L);
|
jbe@85
|
295 lua_pushstring(L, errmsg);
|
jbe@85
|
296 return 2;
|
jbe@85
|
297 }
|
jbe@105
|
298 handle->readbufin = bytesread;
|
jbe@86
|
299 }
|
jbe@85
|
300 }
|
jbe@85
|
301
|
jbe@85
|
302 static int moonbr_io_read(lua_State *L) {
|
jbe@86
|
303 return moonbr_io_read_impl(L, 0, 0);
|
jbe@85
|
304 }
|
jbe@85
|
305
|
jbe@85
|
306 static int moonbr_io_read_nb(lua_State *L) {
|
jbe@86
|
307 return moonbr_io_read_impl(L, 1, 0);
|
jbe@86
|
308 }
|
jbe@86
|
309
|
jbe@86
|
310 static int moonbr_io_drain(lua_State *L) {
|
jbe@86
|
311 return moonbr_io_read_impl(L, 0, 1);
|
jbe@86
|
312 }
|
jbe@86
|
313
|
jbe@86
|
314 static int moonbr_io_drain_nb(lua_State *L) {
|
jbe@86
|
315 return moonbr_io_read_impl(L, 1, 1);
|
jbe@85
|
316 }
|
jbe@85
|
317
|
jbe@140
|
318 #if LUA_VERSION_NUM >= 503
|
jbe@140
|
319 static int moonbr_io_read_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@140
|
320 #else
|
jbe@140
|
321 static int moonbr_io_read_cont(lua_State *L) {
|
jbe@140
|
322 #endif
|
jbe@143
|
323 lua_Integer remaining;
|
jbe@143
|
324 size_t len;
|
jbe@140
|
325 #if !(LUA_VERSION_NUM >= 503)
|
jbe@140
|
326 int ctx = 0;
|
jbe@140
|
327 lua_getctx(L, &ctx);
|
jbe@140
|
328 #endif
|
jbe@140
|
329 remaining = lua_tointeger(L, 3);
|
jbe@140
|
330 while (1) {
|
jbe@140
|
331 lua_pushcfunction(L, moonbr_io_read_nb);
|
jbe@140
|
332 lua_pushvalue(L, 1);
|
jbe@140
|
333 lua_pushvalue(L, 3);
|
jbe@140
|
334 lua_pushvalue(L, 4);
|
jbe@140
|
335 lua_call(L, 3, 2);
|
jbe@143
|
336 if (lua_isnil(L, -2)) return 2;
|
jbe@143
|
337 lua_insert(L, -2);
|
jbe@143
|
338 len = lua_rawlen(L, -1);
|
jbe@143
|
339 if (ctx == 0) {
|
jbe@143
|
340 lua_replace(L, 5);
|
jbe@143
|
341 ctx = 1;
|
jbe@143
|
342 } else if (ctx == 1) {
|
jbe@143
|
343 lua_pushvalue(L, 5);
|
jbe@143
|
344 lua_newtable(L);
|
jbe@143
|
345 lua_replace(L, 5);
|
jbe@143
|
346 lua_rawseti(L, 5, 2);
|
jbe@143
|
347 lua_rawseti(L, 5, 1);
|
jbe@143
|
348 ctx = 2;
|
jbe@140
|
349 } else {
|
jbe@143
|
350 lua_rawseti(L, 5, lua_rawlen(L, 5) + 1);
|
jbe@140
|
351 }
|
jbe@144
|
352 if (strcmp(lua_tostring(L, -1), "block") != 0) break;
|
jbe@144
|
353 lua_pop(L, 1);
|
jbe@144
|
354 if (remaining >= 0 && len) {
|
jbe@143
|
355 remaining -= len;
|
jbe@143
|
356 lua_pushinteger(L, remaining);
|
jbe@143
|
357 lua_replace(L, 3);
|
jbe@143
|
358 }
|
jbe@140
|
359 lua_pushvalue(L, 2);
|
jbe@152
|
360 lua_callk(L, 0, 0, ctx, moonbr_io_read_cont);
|
jbe@140
|
361 }
|
jbe@140
|
362 if (ctx == 1) {
|
jbe@140
|
363 lua_pushvalue(L, 5);
|
jbe@140
|
364 } else {
|
jbe@140
|
365 luaL_Buffer buf;
|
jbe@140
|
366 lua_Integer i, chunkcount;
|
jbe@140
|
367 chunkcount = lua_rawlen(L, 5);
|
jbe@140
|
368 luaL_buffinit(L, &buf);
|
jbe@140
|
369 for (i=1; i<=chunkcount && i>0; i++) {
|
jbe@140
|
370 lua_rawgeti(L, 5, i);
|
jbe@140
|
371 luaL_addvalue(&buf);
|
jbe@140
|
372 }
|
jbe@140
|
373 luaL_pushresult(&buf);
|
jbe@140
|
374 }
|
jbe@143
|
375 lua_pushvalue(L, -2);
|
jbe@143
|
376 return 2;
|
jbe@140
|
377 }
|
jbe@140
|
378
|
jbe@140
|
379 static int moonbr_io_read_call(lua_State *L) {
|
jbe@140
|
380 lua_settop(L, 4);
|
jbe@140
|
381 lua_pushnil(L);
|
jbe@140
|
382 #if LUA_VERSION_NUM >= 503
|
jbe@140
|
383 return moonbr_io_read_cont(L, 0, 0);
|
jbe@140
|
384 #else
|
jbe@140
|
385 return moonbr_io_read_cont(L);
|
jbe@140
|
386 #endif
|
jbe@140
|
387 }
|
jbe@140
|
388
|
jbe@145
|
389 moonbr_io_yield_wrapper(moonbr_io_read_yield, moonbr_io_read_call);
|
jbe@140
|
390
|
jbe@144
|
391 #if LUA_VERSION_NUM >= 503
|
jbe@144
|
392 static int moonbr_io_drain_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@144
|
393 #else
|
jbe@144
|
394 static int moonbr_io_drain_cont(lua_State *L) {
|
jbe@144
|
395 #endif
|
jbe@144
|
396 lua_Integer remaining, len;
|
jbe@144
|
397 size_t totallen = 0;
|
jbe@144
|
398 #if !(LUA_VERSION_NUM >= 503)
|
jbe@144
|
399 int ctx = 0;
|
jbe@144
|
400 lua_getctx(L, &ctx);
|
jbe@144
|
401 #endif
|
jbe@144
|
402 remaining = lua_tointeger(L, 3);
|
jbe@144
|
403 while (1) {
|
jbe@144
|
404 lua_pushcfunction(L, moonbr_io_drain_nb);
|
jbe@144
|
405 lua_pushvalue(L, 1);
|
jbe@144
|
406 lua_pushvalue(L, 3);
|
jbe@144
|
407 lua_pushvalue(L, 4);
|
jbe@144
|
408 lua_call(L, 3, 2);
|
jbe@144
|
409 if (lua_isnil(L, -2)) return 2;
|
jbe@144
|
410 lua_insert(L, -2);
|
jbe@144
|
411 len = lua_tointeger(L, -1);
|
jbe@144
|
412 lua_pop(L, 1);
|
jbe@144
|
413 totallen += len;
|
jbe@144
|
414 if (strcmp(lua_tostring(L, -1), "block") != 0) break;
|
jbe@144
|
415 lua_pop(L, 1);
|
jbe@144
|
416 if (remaining >= 0 && len) {
|
jbe@144
|
417 remaining -= len;
|
jbe@144
|
418 lua_pushinteger(L, remaining);
|
jbe@144
|
419 lua_replace(L, 3);
|
jbe@144
|
420 }
|
jbe@144
|
421 lua_pushvalue(L, 2);
|
jbe@152
|
422 lua_callk(L, 0, 0, ctx, moonbr_io_drain_cont);
|
jbe@144
|
423 }
|
jbe@144
|
424 lua_pushinteger(L, totallen);
|
jbe@144
|
425 lua_pushvalue(L, -2);
|
jbe@144
|
426 return 2;
|
jbe@144
|
427 }
|
jbe@144
|
428
|
jbe@144
|
429 static int moonbr_io_drain_call(lua_State *L) {
|
jbe@144
|
430 #if LUA_VERSION_NUM >= 503
|
jbe@144
|
431 return moonbr_io_drain_cont(L, 0, 0);
|
jbe@144
|
432 #else
|
jbe@144
|
433 return moonbr_io_drain_cont(L);
|
jbe@144
|
434 #endif
|
jbe@144
|
435 }
|
jbe@144
|
436
|
jbe@145
|
437 moonbr_io_yield_wrapper(moonbr_io_drain_yield, moonbr_io_drain_call);
|
jbe@144
|
438
|
jbe@81
|
439 static int moonbr_io_write_impl(lua_State *L, int nonblocking, int flush) {
|
jbe@80
|
440 moonbr_io_handle_t *handle;
|
jbe@80
|
441 int i, top;
|
jbe@80
|
442 const char *str;
|
jbe@92
|
443 size_t strlen;
|
jbe@103
|
444 ssize_t written;
|
jbe@80
|
445 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
446 if (handle->closed) luaL_error(L, "Attempt to write to a closed I/O handle");
|
jbe@94
|
447 if (handle->finished) luaL_error(L, "Attempt to write to a finished I/O handle");
|
jbe@81
|
448 if (handle->writeerr) {
|
jbe@80
|
449 lua_pushnil(L);
|
jbe@80
|
450 lua_pushliteral(L, "Previous write error");
|
jbe@80
|
451 return 2;
|
jbe@80
|
452 }
|
jbe@103
|
453 handle->writeerr = 1;
|
jbe@81
|
454 moonbr_io_handle_set_nonblocking(L, handle, nonblocking);
|
jbe@84
|
455 top = lua_gettop(L);
|
jbe@81
|
456 lua_getuservalue(L, 1);
|
jbe@103
|
457 lua_getfield(L, -1, "writequeue");
|
jbe@84
|
458 for (i=2; i<=top; i++) {
|
jbe@84
|
459 luaL_checklstring(L, i, &strlen);
|
jbe@84
|
460 lua_pushvalue(L, i);
|
jbe@84
|
461 lua_rawseti(L, -2, handle->writeqin++);
|
jbe@84
|
462 handle->writeleft += strlen;
|
jbe@81
|
463 }
|
jbe@132
|
464 if (flush) handle->flushedleft = handle->writeleft;
|
jbe@83
|
465 while (handle->writeqout != handle->writeqin) {
|
jbe@83
|
466 lua_rawgeti(L, -1, handle->writeqout);
|
jbe@81
|
467 str = lua_tolstring(L, -1, &strlen);
|
jbe@92
|
468 while (handle->writeqoff < strlen) {
|
jbe@103
|
469 if (
|
jbe@132
|
470 strlen - handle->writeqoff <
|
jbe@103
|
471 MOONBR_IO_WRITEBUFLEN - handle->writebufin
|
jbe@103
|
472 ) {
|
jbe@103
|
473 memcpy(
|
jbe@103
|
474 handle->writebuf + handle->writebufin,
|
jbe@103
|
475 str + handle->writeqoff,
|
jbe@103
|
476 strlen - handle->writeqoff
|
jbe@103
|
477 );
|
jbe@103
|
478 handle->writebufin += strlen - handle->writeqoff;
|
jbe@80
|
479 break;
|
jbe@80
|
480 } else {
|
jbe@103
|
481 memcpy(
|
jbe@103
|
482 handle->writebuf + handle->writebufin,
|
jbe@103
|
483 str + handle->writeqoff,
|
jbe@103
|
484 MOONBR_IO_WRITEBUFLEN - handle->writebufin
|
jbe@103
|
485 );
|
jbe@103
|
486 handle->writeqoff += MOONBR_IO_WRITEBUFLEN - handle->writebufin;
|
jbe@228
|
487 handle->writebufin = MOONBR_IO_WRITEBUFLEN;
|
jbe@103
|
488 while (handle->writebufout < MOONBR_IO_WRITEBUFLEN) {
|
jbe@133
|
489 moonbr_io_handle_set_nopush(L, handle, 1);
|
jbe@103
|
490 written = write(
|
jbe@103
|
491 handle->fd,
|
jbe@103
|
492 handle->writebuf + handle->writebufout,
|
jbe@103
|
493 MOONBR_IO_WRITEBUFLEN - handle->writebufout
|
jbe@103
|
494 );
|
jbe@103
|
495 if (written < 0) {
|
jbe@81
|
496 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@81
|
497 goto moonbr_io_write_impl_block;
|
jbe@81
|
498 } else if (errno != EINTR) {
|
jbe@80
|
499 moonbr_io_errmsg();
|
jbe@80
|
500 lua_pushnil(L);
|
jbe@80
|
501 lua_pushstring(L, errmsg);
|
jbe@80
|
502 return 2;
|
jbe@80
|
503 }
|
jbe@103
|
504 } else {
|
jbe@103
|
505 handle->writebufout += written;
|
jbe@103
|
506 handle->writeleft -= written;
|
jbe@133
|
507 if (handle->flushedleft) {
|
jbe@133
|
508 if (written >= handle->flushedleft) {
|
jbe@133
|
509 handle->flushedleft = 0;
|
jbe@133
|
510 moonbr_io_handle_set_nopush(L, handle, 0);
|
jbe@133
|
511 } else {
|
jbe@133
|
512 handle->flushedleft -= written;
|
jbe@133
|
513 }
|
jbe@133
|
514 }
|
jbe@80
|
515 }
|
jbe@80
|
516 }
|
jbe@103
|
517 handle->writebufin = 0;
|
jbe@103
|
518 handle->writebufout = 0;
|
jbe@80
|
519 }
|
jbe@80
|
520 }
|
jbe@81
|
521 handle->writeqoff = 0;
|
jbe@81
|
522 lua_pop(L, 1);
|
jbe@81
|
523 lua_pushnil(L);
|
jbe@83
|
524 lua_rawseti(L, -2, handle->writeqout++);
|
jbe@80
|
525 }
|
jbe@132
|
526 while (handle->flushedleft) {
|
jbe@133
|
527 moonbr_io_handle_set_nopush(L, handle, 1);
|
jbe@132
|
528 written = write(
|
jbe@132
|
529 handle->fd,
|
jbe@132
|
530 handle->writebuf + handle->writebufout,
|
jbe@132
|
531 handle->writebufin - handle->writebufout
|
jbe@132
|
532 );
|
jbe@132
|
533 if (written < 0) {
|
jbe@132
|
534 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@132
|
535 goto moonbr_io_write_impl_block;
|
jbe@132
|
536 } else if (errno != EINTR) {
|
jbe@132
|
537 moonbr_io_errmsg();
|
jbe@132
|
538 lua_pushnil(L);
|
jbe@132
|
539 lua_pushstring(L, errmsg);
|
jbe@132
|
540 return 2;
|
jbe@81
|
541 }
|
jbe@132
|
542 } else {
|
jbe@132
|
543 handle->writebufout += written;
|
jbe@132
|
544 handle->writeleft -= written;
|
jbe@133
|
545 if (handle->flushedleft) {
|
jbe@133
|
546 if (written >= handle->flushedleft) {
|
jbe@133
|
547 handle->flushedleft = 0;
|
jbe@133
|
548 moonbr_io_handle_set_nopush(L, handle, 0);
|
jbe@133
|
549 } else {
|
jbe@133
|
550 handle->flushedleft -= written;
|
jbe@133
|
551 }
|
jbe@133
|
552 }
|
jbe@81
|
553 }
|
jbe@132
|
554 }
|
jbe@132
|
555 if (handle->writebufout == handle->writebufin) {
|
jbe@103
|
556 handle->writebufin = 0;
|
jbe@103
|
557 handle->writebufout = 0;
|
jbe@81
|
558 }
|
jbe@103
|
559 if (nonblocking) lua_pushinteger(L, 0);
|
jbe@103
|
560 else lua_pushvalue(L, 1);
|
jbe@103
|
561 handle->writeerr = 0;
|
jbe@80
|
562 return 1;
|
jbe@81
|
563 moonbr_io_write_impl_block:
|
jbe@91
|
564 lua_pushinteger(L, handle->writeleft);
|
jbe@103
|
565 handle->writeerr = 0;
|
jbe@81
|
566 return 1;
|
jbe@81
|
567 }
|
jbe@81
|
568
|
jbe@81
|
569 static int moonbr_io_write(lua_State *L) {
|
jbe@81
|
570 return moonbr_io_write_impl(L, 0, 0);
|
jbe@81
|
571 }
|
jbe@81
|
572
|
jbe@81
|
573 static int moonbr_io_write_nb(lua_State *L) {
|
jbe@81
|
574 return moonbr_io_write_impl(L, 1, 0);
|
jbe@80
|
575 }
|
jbe@80
|
576
|
jbe@80
|
577 static int moonbr_io_flush(lua_State *L) {
|
jbe@81
|
578 return moonbr_io_write_impl(L, 0, 1);
|
jbe@81
|
579 }
|
jbe@81
|
580
|
jbe@81
|
581 static int moonbr_io_flush_nb(lua_State *L) {
|
jbe@81
|
582 return moonbr_io_write_impl(L, 1, 1);
|
jbe@80
|
583 }
|
jbe@80
|
584
|
jbe@145
|
585 #if LUA_VERSION_NUM >= 503
|
jbe@145
|
586 static int moonbr_io_write_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@145
|
587 #else
|
jbe@145
|
588 static int moonbr_io_write_cont(lua_State *L) {
|
jbe@145
|
589 #endif
|
jbe@145
|
590 while (1) {
|
jbe@145
|
591 lua_pushcfunction(L, moonbr_io_write_nb);
|
jbe@145
|
592 lua_pushvalue(L, 1);
|
jbe@145
|
593 lua_call(L, 1, 2);
|
jbe@145
|
594 if (lua_isnil(L, -2)) return 2;
|
jbe@145
|
595 if (!lua_tointeger(L, -2)) {
|
jbe@145
|
596 lua_pushvalue(L, 1);
|
jbe@145
|
597 return 1;
|
jbe@145
|
598 }
|
jbe@145
|
599 lua_pop(L, 2);
|
jbe@145
|
600 lua_pushvalue(L, 2);
|
jbe@152
|
601 lua_callk(L, 0, 0, 0, moonbr_io_write_cont);
|
jbe@145
|
602 }
|
jbe@145
|
603 }
|
jbe@145
|
604
|
jbe@145
|
605 static int moonbr_io_write_call(lua_State *L) {
|
jbe@145
|
606 lua_pushcfunction(L, moonbr_io_write_nb);
|
jbe@145
|
607 lua_insert(L, 3);
|
jbe@145
|
608 lua_pushvalue(L, 1);
|
jbe@145
|
609 lua_insert(L, 4);
|
jbe@145
|
610 lua_call(L, lua_gettop(L) - 3, 2);
|
jbe@145
|
611 if (lua_isnil(L, -2)) return 2;
|
jbe@145
|
612 if (!lua_tointeger(L, -2)) {
|
jbe@145
|
613 lua_pushvalue(L, 1);
|
jbe@145
|
614 return 1;
|
jbe@145
|
615 }
|
jbe@145
|
616 #if LUA_VERSION_NUM >= 503
|
jbe@145
|
617 return moonbr_io_write_cont(L, 0, 0);
|
jbe@145
|
618 #else
|
jbe@145
|
619 return moonbr_io_write_cont(L);
|
jbe@145
|
620 #endif
|
jbe@145
|
621 }
|
jbe@145
|
622
|
jbe@145
|
623 moonbr_io_yield_wrapper(moonbr_io_write_yield, moonbr_io_write_call);
|
jbe@145
|
624
|
jbe@145
|
625 static int moonbr_io_flush_call(lua_State *L) {
|
jbe@145
|
626 lua_pushcfunction(L, moonbr_io_flush_nb);
|
jbe@145
|
627 lua_insert(L, 3);
|
jbe@145
|
628 lua_pushvalue(L, 1);
|
jbe@145
|
629 lua_insert(L, 4);
|
jbe@145
|
630 lua_call(L, lua_gettop(L) - 3, 2);
|
jbe@145
|
631 if (lua_isnil(L, -2)) return 2;
|
jbe@145
|
632 if (!lua_tointeger(L, -2)) {
|
jbe@145
|
633 lua_pushvalue(L, 1);
|
jbe@145
|
634 return 1;
|
jbe@145
|
635 }
|
jbe@145
|
636 #if LUA_VERSION_NUM >= 503
|
jbe@145
|
637 return moonbr_io_write_cont(L, 0, 0);
|
jbe@145
|
638 #else
|
jbe@145
|
639 return moonbr_io_write_cont(L);
|
jbe@145
|
640 #endif
|
jbe@145
|
641 }
|
jbe@145
|
642
|
jbe@145
|
643 moonbr_io_yield_wrapper(moonbr_io_flush_yield, moonbr_io_flush_call);
|
jbe@145
|
644
|
jbe@88
|
645 static int moonbr_io_finish(lua_State *L) {
|
jbe@88
|
646 moonbr_io_handle_t *handle;
|
jbe@88
|
647 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
648 if (handle->closed) luaL_error(L, "Attempt to finish a closed I/O handle");
|
jbe@94
|
649 if (handle->finished) luaL_error(L, "Attempt to finish a finished I/O handle");
|
jbe@94
|
650 if (handle->writeleft) {
|
jbe@94
|
651 lua_pushcfunction(L, moonbr_io_flush);
|
jbe@94
|
652 lua_pushvalue(L, 1);
|
jbe@116
|
653 if (lua_pcall(L, 1, 2, 0)) {
|
jbe@116
|
654 handle->finished = 1;
|
jbe@116
|
655 lua_error(L);
|
jbe@116
|
656 }
|
jbe@94
|
657 if (!lua_toboolean(L, -2)) {
|
jbe@94
|
658 handle->finished = 1;
|
jbe@94
|
659 return 2;
|
jbe@88
|
660 }
|
jbe@94
|
661 }
|
jbe@94
|
662 handle->finished = 1;
|
jbe@107
|
663 if (handle->addrfam == AF_INET6 || handle->addrfam == AF_INET) {
|
jbe@88
|
664 if (shutdown(handle->fd, SHUT_WR)) {
|
jbe@88
|
665 moonbr_io_errmsg();
|
jbe@88
|
666 lua_pushnil(L);
|
jbe@88
|
667 lua_pushstring(L, errmsg);
|
jbe@88
|
668 return 2;
|
jbe@88
|
669 }
|
jbe@94
|
670 } else {
|
jbe@94
|
671 if (close(handle->fd)) {
|
jbe@94
|
672 moonbr_io_errmsg();
|
jbe@94
|
673 handle->fd = -1;
|
jbe@94
|
674 lua_pushnil(L);
|
jbe@94
|
675 lua_pushstring(L, errmsg);
|
jbe@94
|
676 return 2;
|
jbe@94
|
677 }
|
jbe@94
|
678 handle->fd = -1; /* fake EOF on read */
|
jbe@88
|
679 }
|
jbe@88
|
680 lua_pushboolean(L, 1);
|
jbe@88
|
681 return 1;
|
jbe@88
|
682 }
|
jbe@88
|
683
|
jbe@94
|
684 static int moonbr_io_close_impl(lua_State *L, int reset) {
|
jbe@83
|
685 moonbr_io_handle_t *handle;
|
jbe@83
|
686 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
687 if (handle->closed) luaL_error(L, "Attempt to close a closed I/O handle");
|
jbe@94
|
688 if (!reset) {
|
jbe@87
|
689 if (handle->writeleft) {
|
jbe@87
|
690 lua_pushcfunction(L, moonbr_io_flush);
|
jbe@87
|
691 lua_pushvalue(L, 1);
|
jbe@116
|
692 if (lua_pcall(L, 1, 2, 0)) {
|
jbe@129
|
693 handle->closed = 1;
|
jbe@116
|
694 close(handle->fd);
|
jbe@116
|
695 handle->fd = -1;
|
jbe@116
|
696 lua_error(L);
|
jbe@116
|
697 }
|
jbe@129
|
698 handle->closed = 1;
|
jbe@87
|
699 if (!lua_toboolean(L, -2)) {
|
jbe@87
|
700 close(handle->fd);
|
jbe@87
|
701 handle->fd = -1;
|
jbe@87
|
702 return 2;
|
jbe@87
|
703 }
|
jbe@129
|
704 } else {
|
jbe@129
|
705 handle->closed = 1;
|
jbe@129
|
706 moonbr_io_handle_set_linger(L, handle, -1);
|
jbe@83
|
707 }
|
jbe@129
|
708 } else {
|
jbe@129
|
709 handle->closed = 1;
|
jbe@83
|
710 }
|
jbe@94
|
711 if (handle->fd >= 0) {
|
jbe@94
|
712 if (close(handle->fd)) {
|
jbe@94
|
713 moonbr_io_errmsg();
|
jbe@94
|
714 handle->fd = -1;
|
jbe@94
|
715 lua_pushnil(L);
|
jbe@94
|
716 lua_pushstring(L, errmsg);
|
jbe@94
|
717 return 2;
|
jbe@94
|
718 }
|
jbe@104
|
719 handle->fd = -1;
|
jbe@83
|
720 }
|
jbe@83
|
721 lua_pushboolean(L, 1);
|
jbe@83
|
722 return 1;
|
jbe@84
|
723
|
jbe@83
|
724 }
|
jbe@83
|
725
|
jbe@94
|
726 static int moonbr_io_close(lua_State *L) {
|
jbe@94
|
727 return moonbr_io_close_impl(L, 0);
|
jbe@94
|
728 }
|
jbe@94
|
729
|
jbe@84
|
730 static int moonbr_io_reset(lua_State *L) {
|
jbe@94
|
731 return moonbr_io_close_impl(L, 1);
|
jbe@84
|
732 }
|
jbe@84
|
733
|
jbe@108
|
734 static int moonbr_io_handlegc(lua_State *L) {
|
jbe@88
|
735 moonbr_io_handle_t *handle;
|
jbe@88
|
736 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@88
|
737 if (handle->fd >= 0) {
|
jbe@218
|
738 lua_pushcfunction(L, moonbr_io_reset);
|
jbe@88
|
739 lua_pushvalue(L, 1);
|
jbe@88
|
740 lua_pushinteger(L, 0);
|
jbe@88
|
741 lua_call(L, 2, 0);
|
jbe@88
|
742 }
|
jbe@88
|
743 return 0;
|
jbe@88
|
744 }
|
jbe@88
|
745
|
jbe@100
|
746 void moonbr_io_closehandle(lua_State *L, int idx, int reset) {
|
jbe@88
|
747 moonbr_io_handle_t *handle;
|
jbe@88
|
748 handle = luaL_checkudata(L, idx, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@100
|
749 if (!handle->closed) {
|
jbe@100
|
750 lua_pushcfunction(L, reset ? moonbr_io_reset : moonbr_io_close);
|
jbe@100
|
751 lua_pushvalue(L, idx < 0 ? idx-1 : idx);
|
jbe@100
|
752 lua_call(L, 1, 0);
|
jbe@88
|
753 }
|
jbe@88
|
754 }
|
jbe@88
|
755
|
jbe@208
|
756 static int moonbr_io_pushhandle_impl(lua_State *L) {
|
jbe@208
|
757 int *fd;
|
jbe@79
|
758 moonbr_io_handle_t *handle;
|
jbe@107
|
759 struct sockaddr addr;
|
jbe@107
|
760 socklen_t addrlen;
|
jbe@208
|
761 fd = lua_touserdata(L, 1);
|
jbe@79
|
762 handle = lua_newuserdata(L, sizeof(moonbr_io_handle_t));
|
jbe@208
|
763 handle->fd = -1; /* avoid closing incomplete handle */
|
jbe@107
|
764 addrlen = sizeof(addr);
|
jbe@208
|
765 if (getsockname(*fd, &addr, &addrlen)) {
|
jbe@107
|
766 if (errno != ENOTSOCK) {
|
jbe@107
|
767 moonbr_io_errmsg();
|
jbe@107
|
768 luaL_error(L, "Unexpected error when examining socket: %s", errmsg);
|
jbe@107
|
769 }
|
jbe@107
|
770 handle->issock = 0;
|
jbe@107
|
771 } else {
|
jbe@107
|
772 handle->issock = 1;
|
jbe@107
|
773 handle->addrfam = addr.sa_family;
|
jbe@107
|
774 }
|
jbe@94
|
775 handle->finished = 0;
|
jbe@94
|
776 handle->closed = 0;
|
jbe@81
|
777 handle->nonblocking = -1;
|
jbe@95
|
778 handle->nopush = -1;
|
jbe@85
|
779 handle->readerr = 0;
|
jbe@105
|
780 handle->readbufin = 0;
|
jbe@105
|
781 handle->readbufout = 0;
|
jbe@81
|
782 handle->writeerr = 0;
|
jbe@81
|
783 handle->writeleft = 0;
|
jbe@132
|
784 handle->flushedleft = 0;
|
jbe@83
|
785 handle->writeqin = 0;
|
jbe@83
|
786 handle->writeqout = 0;
|
jbe@81
|
787 handle->writeqoff = 0;
|
jbe@103
|
788 handle->writebufin = 0;
|
jbe@103
|
789 handle->writebufout = 0;
|
jbe@208
|
790 handle->fd = *fd; /* required for set_linger call */
|
jbe@87
|
791 moonbr_io_handle_set_linger(L, handle, 0);
|
jbe@208
|
792 handle->fd = -1; /* avoid closing incomplete handle */
|
jbe@238
|
793 luaL_setmetatable(L, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
794 lua_newtable(L); // uservalue
|
jbe@81
|
795 lua_newtable(L);
|
jbe@103
|
796 lua_setfield(L, -2, "writequeue");
|
jbe@79
|
797 lua_newtable(L); // public
|
jbe@107
|
798 if (handle->addrfam == AF_INET6) {
|
jbe@107
|
799 struct sockaddr_in6 addr_in6;
|
jbe@107
|
800 char addrstrbuf[INET6_ADDRSTRLEN];
|
jbe@107
|
801 const char *addrstr;
|
jbe@107
|
802 addrlen = sizeof(addr_in6);
|
jbe@208
|
803 if (getsockname(*fd, (struct sockaddr *)&addr_in6, &addrlen)) {
|
jbe@107
|
804 moonbr_io_errmsg();
|
jbe@107
|
805 luaL_error(L, "Could not determine local IP address/port: %s", errmsg);
|
jbe@107
|
806 }
|
jbe@107
|
807 if (addrlen > sizeof(addr_in6)) {
|
jbe@107
|
808 luaL_error(L, "Could not determine local IP address/port: buffer size exceeded");
|
jbe@107
|
809 }
|
jbe@107
|
810 addrstr = inet_ntop(AF_INET6, addr_in6.sin6_addr.s6_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
811 if (!addrstr) {
|
jbe@107
|
812 moonbr_io_errmsg();
|
jbe@107
|
813 luaL_error(L, "Could not format local IP address: %s", errmsg);
|
jbe@107
|
814 } else {
|
jbe@107
|
815 lua_pushstring(L, addrstr);
|
jbe@107
|
816 lua_setfield(L, -2, "local_ip6");
|
jbe@107
|
817 }
|
jbe@107
|
818 lua_pushinteger(L, ntohs(addr_in6.sin6_port));
|
jbe@107
|
819 lua_setfield(L, -2, "local_tcpport");
|
jbe@208
|
820 if (getpeername(*fd, (struct sockaddr *)&addr_in6, &addrlen)) {
|
jbe@107
|
821 moonbr_io_errmsg();
|
jbe@107
|
822 luaL_error(L, "Could not determine remote IP address/port: %s", errmsg);
|
jbe@107
|
823 }
|
jbe@107
|
824 if (addrlen > sizeof(addr_in6)) {
|
jbe@107
|
825 luaL_error(L, "Could not determine remote IP address/port: buffer size exceeded");
|
jbe@107
|
826 }
|
jbe@107
|
827 addrstr = inet_ntop(AF_INET6, addr_in6.sin6_addr.s6_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
828 if (!addrstr) {
|
jbe@107
|
829 moonbr_io_errmsg();
|
jbe@107
|
830 luaL_error(L, "Could not format remote IP address: %s", errmsg);
|
jbe@107
|
831 } else {
|
jbe@107
|
832 lua_pushstring(L, addrstr);
|
jbe@107
|
833 lua_setfield(L, -2, "remote_ip6");
|
jbe@107
|
834 }
|
jbe@107
|
835 lua_pushinteger(L, ntohs(addr_in6.sin6_port));
|
jbe@107
|
836 lua_setfield(L, -2, "remote_tcpport");
|
jbe@107
|
837 } else if (handle->addrfam == AF_INET) {
|
jbe@107
|
838 struct sockaddr_in addr_in;
|
jbe@107
|
839 char addrstrbuf[INET_ADDRSTRLEN];
|
jbe@107
|
840 const char *addrstr;
|
jbe@107
|
841 addrlen = sizeof(addr_in);
|
jbe@208
|
842 if (getsockname(*fd, (struct sockaddr *)&addr_in, &addrlen)) {
|
jbe@107
|
843 moonbr_io_errmsg();
|
jbe@107
|
844 luaL_error(L, "Could not determine local IP address/port: %s", errmsg);
|
jbe@107
|
845 }
|
jbe@107
|
846 if (addrlen > sizeof(addr_in)) {
|
jbe@107
|
847 luaL_error(L, "Could not determine local IP address/port: buffer size exceeded");
|
jbe@107
|
848 }
|
jbe@107
|
849 addrstr = inet_ntop(AF_INET, &addr_in.sin_addr.s_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
850 if (!addrstr) {
|
jbe@107
|
851 moonbr_io_errmsg();
|
jbe@107
|
852 luaL_error(L, "Could not format local IP address: %s", errmsg);
|
jbe@107
|
853 } else {
|
jbe@107
|
854 lua_pushstring(L, addrstr);
|
jbe@107
|
855 lua_setfield(L, -2, "local_ip4");
|
jbe@107
|
856 }
|
jbe@107
|
857 lua_pushinteger(L, ntohs(addr_in.sin_port));
|
jbe@107
|
858 lua_setfield(L, -2, "local_tcpport");
|
jbe@208
|
859 if (getpeername(*fd, (struct sockaddr *)&addr_in, &addrlen)) {
|
jbe@107
|
860 moonbr_io_errmsg();
|
jbe@107
|
861 luaL_error(L, "Could not determine remote IP address/port: %s", errmsg);
|
jbe@107
|
862 }
|
jbe@107
|
863 if (addrlen > sizeof(addr_in)) {
|
jbe@107
|
864 luaL_error(L, "Could not determine remote IP address/port: buffer size exceeded");
|
jbe@107
|
865 }
|
jbe@107
|
866 addrstr = inet_ntop(AF_INET, &addr_in.sin_addr.s_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
867 if (!addrstr) {
|
jbe@107
|
868 moonbr_io_errmsg();
|
jbe@107
|
869 luaL_error(L, "Could not format remote IP address: %s", errmsg);
|
jbe@107
|
870 } else {
|
jbe@107
|
871 lua_pushstring(L, addrstr);
|
jbe@107
|
872 lua_setfield(L, -2, "remote_ip4");
|
jbe@107
|
873 }
|
jbe@107
|
874 lua_pushinteger(L, ntohs(addr_in.sin_port));
|
jbe@107
|
875 lua_setfield(L, -2, "remote_tcpport");
|
jbe@107
|
876 }
|
jbe@238
|
877 luaL_setmetatable(L, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
|
jbe@79
|
878 lua_setfield(L, -2, "public");
|
jbe@79
|
879 lua_setuservalue(L, -2);
|
jbe@208
|
880 handle->fd = *fd;
|
jbe@208
|
881 *fd = -1; /* closing is now handled by garbage collection */
|
jbe@208
|
882 return 1;
|
jbe@208
|
883 }
|
jbe@208
|
884
|
jbe@208
|
885 void moonbr_io_pushhandle(lua_State *L, int fd) {
|
jbe@208
|
886 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
|
jbe@208
|
887 lua_pushlightuserdata(L, &fd);
|
jbe@208
|
888 if (lua_pcall(L, 1, 1, 0)) {
|
jbe@208
|
889 if (fd != -1) close(fd);
|
jbe@208
|
890 lua_error(L);
|
jbe@208
|
891 }
|
jbe@79
|
892 }
|
jbe@79
|
893
|
jbe@79
|
894 static int moonbr_io_handleindex(lua_State *L) {
|
jbe@80
|
895 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@205
|
896 luaL_checkany(L, 2);
|
jbe@79
|
897 lua_getuservalue(L, 1);
|
jbe@79
|
898 lua_getfield(L, -1, "public");
|
jbe@79
|
899 lua_pushvalue(L, 2);
|
jbe@79
|
900 lua_gettable(L, -2);
|
jbe@79
|
901 return 1;
|
jbe@79
|
902 }
|
jbe@79
|
903
|
jbe@79
|
904 static int moonbr_io_handlenewindex(lua_State *L) {
|
jbe@80
|
905 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@205
|
906 luaL_checkany(L, 2);
|
jbe@205
|
907 luaL_checkany(L, 3);
|
jbe@79
|
908 lua_getuservalue(L, 1);
|
jbe@79
|
909 lua_getfield(L, -1, "public");
|
jbe@79
|
910 lua_pushvalue(L, 2);
|
jbe@79
|
911 lua_pushvalue(L, 3);
|
jbe@79
|
912 lua_settable(L, -3);
|
jbe@79
|
913 return 0;
|
jbe@79
|
914 }
|
jbe@79
|
915
|
jbe@111
|
916 static int moonbr_io_localconnect_impl(lua_State *L, int nonblocking) {
|
jbe@111
|
917 const char *path;
|
jbe@111
|
918 struct sockaddr_un sockaddr = { .sun_family = AF_LOCAL };
|
jbe@111
|
919 const int path_maxlen = sizeof(struct sockaddr_un) - (
|
jbe@111
|
920 (void *)sockaddr.sun_path - (void *)&sockaddr
|
jbe@111
|
921 ) - 1; /* one byte for termination */
|
jbe@111
|
922 int sock;
|
jbe@111
|
923 path = luaL_checkstring(L, 1);
|
jbe@111
|
924 if (strlen(path) > path_maxlen) luaL_error(L, "Path too long; only %i characters allowed", path_maxlen);
|
jbe@111
|
925 strcpy(sockaddr.sun_path, path);
|
jbe@111
|
926 sock = socket(
|
jbe@111
|
927 PF_LOCAL,
|
jbe@111
|
928 SOCK_STREAM | SOCK_CLOEXEC | (nonblocking ? SOCK_NONBLOCK : 0),
|
jbe@111
|
929 0
|
jbe@111
|
930 );
|
jbe@111
|
931 if (sock < 0) {
|
jbe@111
|
932 moonbr_io_errmsg();
|
jbe@111
|
933 lua_pushnil(L);
|
jbe@111
|
934 lua_pushstring(L, errmsg);
|
jbe@111
|
935 return 2;
|
jbe@111
|
936 }
|
jbe@111
|
937 if (connect(sock, (struct sockaddr *)&sockaddr, sizeof(sockaddr))) {
|
jbe@111
|
938 if (!nonblocking && errno == EINTR) {
|
jbe@111
|
939 moonbr_io_errmsg();
|
jbe@111
|
940 close(sock);
|
jbe@111
|
941 lua_pushnil(L);
|
jbe@111
|
942 lua_pushstring(L, errmsg);
|
jbe@111
|
943 return 2;
|
jbe@111
|
944 } else if (!(nonblocking && (errno == EINPROGRESS || errno == EINTR))) {
|
jbe@111
|
945 moonbr_io_errmsg();
|
jbe@111
|
946 lua_pushnil(L);
|
jbe@111
|
947 lua_pushstring(L, errmsg);
|
jbe@111
|
948 return 2;
|
jbe@111
|
949 }
|
jbe@111
|
950 }
|
jbe@111
|
951 moonbr_io_pushhandle(L, sock);
|
jbe@111
|
952 return 1;
|
jbe@111
|
953 }
|
jbe@111
|
954
|
jbe@111
|
955 static int moonbr_io_localconnect(lua_State *L) {
|
jbe@111
|
956 return moonbr_io_localconnect_impl(L, 0);
|
jbe@111
|
957 }
|
jbe@111
|
958
|
jbe@111
|
959 static int moonbr_io_localconnect_nb(lua_State *L) {
|
jbe@111
|
960 return moonbr_io_localconnect_impl(L, 1);
|
jbe@111
|
961 }
|
jbe@111
|
962
|
jbe@99
|
963 static int moonbr_io_tcpconnect_impl(lua_State *L, int nonblocking) {
|
jbe@98
|
964 const char *host, *port;
|
jbe@98
|
965 struct addrinfo hints = { 0, };
|
jbe@98
|
966 struct addrinfo *res, *addrinfo;
|
jbe@98
|
967 int errcode;
|
jbe@98
|
968 int sock;
|
jbe@98
|
969 host = luaL_checkstring(L, 1);
|
jbe@98
|
970 port = luaL_checkstring(L, 2);
|
jbe@98
|
971 hints.ai_family = AF_UNSPEC;
|
jbe@98
|
972 hints.ai_socktype = SOCK_STREAM;
|
jbe@98
|
973 hints.ai_protocol = IPPROTO_TCP;
|
jbe@98
|
974 hints.ai_flags = AI_ADDRCONFIG;
|
jbe@98
|
975 errcode = getaddrinfo(host, port, &hints, &res);
|
jbe@98
|
976 if (errcode) {
|
jbe@102
|
977 freeaddrinfo(res);
|
jbe@98
|
978 if (errcode == EAI_SYSTEM) {
|
jbe@98
|
979 moonbr_io_errmsg();
|
jbe@98
|
980 lua_pushnil(L);
|
jbe@98
|
981 lua_pushfstring(L, "%s: %s", gai_strerror(errcode), errmsg);
|
jbe@98
|
982 } else {
|
jbe@98
|
983 lua_pushnil(L);
|
jbe@98
|
984 lua_pushstring(L, gai_strerror(errcode));
|
jbe@98
|
985 }
|
jbe@98
|
986 return 2;
|
jbe@98
|
987 }
|
jbe@98
|
988 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
989 if (addrinfo->ai_family == AF_INET6) goto moonbr_io_tcpconnect_found;
|
jbe@98
|
990 }
|
jbe@98
|
991 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
992 if (addrinfo->ai_family == AF_INET) goto moonbr_io_tcpconnect_found;
|
jbe@98
|
993 }
|
jbe@98
|
994 addrinfo = res;
|
jbe@98
|
995 moonbr_io_tcpconnect_found:
|
jbe@99
|
996 sock = socket(
|
jbe@134
|
997 addrinfo->ai_family, /* NOTE: not correctly using PF_* but AF_* constants here */
|
jbe@99
|
998 addrinfo->ai_socktype | SOCK_CLOEXEC | (nonblocking ? SOCK_NONBLOCK : 0),
|
jbe@99
|
999 addrinfo->ai_protocol
|
jbe@99
|
1000 );
|
jbe@98
|
1001 if (sock < 0) {
|
jbe@98
|
1002 moonbr_io_errmsg();
|
jbe@108
|
1003 freeaddrinfo(res);
|
jbe@98
|
1004 lua_pushnil(L);
|
jbe@98
|
1005 lua_pushstring(L, errmsg);
|
jbe@108
|
1006 return 2;
|
jbe@98
|
1007 }
|
jbe@98
|
1008 if (connect(sock, addrinfo->ai_addr, addrinfo->ai_addrlen)) {
|
jbe@108
|
1009 freeaddrinfo(res);
|
jbe@99
|
1010 if (!nonblocking && errno == EINTR) {
|
jbe@99
|
1011 moonbr_io_errmsg();
|
jbe@99
|
1012 close(sock);
|
jbe@99
|
1013 lua_pushnil(L);
|
jbe@99
|
1014 lua_pushstring(L, errmsg);
|
jbe@99
|
1015 return 2;
|
jbe@99
|
1016 } else if (!(nonblocking && (errno == EINPROGRESS || errno == EINTR))) {
|
jbe@99
|
1017 moonbr_io_errmsg();
|
jbe@99
|
1018 lua_pushnil(L);
|
jbe@99
|
1019 lua_pushstring(L, errmsg);
|
jbe@99
|
1020 return 2;
|
jbe@99
|
1021 }
|
jbe@108
|
1022 } else {
|
jbe@108
|
1023 freeaddrinfo(res);
|
jbe@98
|
1024 }
|
jbe@107
|
1025 moonbr_io_pushhandle(L, sock);
|
jbe@98
|
1026 return 1;
|
jbe@98
|
1027 }
|
jbe@98
|
1028
|
jbe@99
|
1029 static int moonbr_io_tcpconnect(lua_State *L) {
|
jbe@99
|
1030 return moonbr_io_tcpconnect_impl(L, 0);
|
jbe@99
|
1031 }
|
jbe@99
|
1032
|
jbe@99
|
1033 static int moonbr_io_tcpconnect_nb(lua_State *L) {
|
jbe@99
|
1034 return moonbr_io_tcpconnect_impl(L, 1);
|
jbe@99
|
1035 }
|
jbe@99
|
1036
|
jbe@112
|
1037 static int moonbr_io_locallisten(lua_State *L) {
|
jbe@112
|
1038 moonbr_io_listener_t *listener;
|
jbe@112
|
1039 const char *path;
|
jbe@118
|
1040 struct stat sb;
|
jbe@112
|
1041 struct sockaddr_un sockaddr = { .sun_family = AF_LOCAL };
|
jbe@112
|
1042 const int path_maxlen = sizeof(struct sockaddr_un) - (
|
jbe@112
|
1043 (void *)sockaddr.sun_path - (void *)&sockaddr
|
jbe@112
|
1044 ) - 1; /* one byte for termination */
|
jbe@112
|
1045 int sock;
|
jbe@112
|
1046 path = luaL_checkstring(L, 1);
|
jbe@112
|
1047 if (strlen(path) > path_maxlen) luaL_error(L, "Path too long; only %i characters allowed", path_maxlen);
|
jbe@112
|
1048 strcpy(sockaddr.sun_path, path);
|
jbe@118
|
1049 if (stat(path, &sb) == 0) {
|
jbe@118
|
1050 if (S_ISSOCK(sb.st_mode)) unlink(path);
|
jbe@118
|
1051 }
|
jbe@112
|
1052 listener = lua_newuserdata(L, sizeof(moonbr_io_listener_t));
|
jbe@117
|
1053 listener->fd = -1;
|
jbe@112
|
1054 luaL_setmetatable(L, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@112
|
1055 sock = socket(
|
jbe@112
|
1056 PF_LOCAL,
|
jbe@112
|
1057 SOCK_STREAM | SOCK_CLOEXEC,
|
jbe@112
|
1058 0
|
jbe@112
|
1059 );
|
jbe@112
|
1060 if (sock < 0) {
|
jbe@112
|
1061 moonbr_io_errmsg();
|
jbe@112
|
1062 lua_pushnil(L);
|
jbe@112
|
1063 lua_pushstring(L, errmsg);
|
jbe@112
|
1064 return 2;
|
jbe@112
|
1065 }
|
jbe@112
|
1066 if (bind(sock, (struct sockaddr *)&sockaddr, sizeof(sockaddr))) {
|
jbe@112
|
1067 moonbr_io_errmsg();
|
jbe@112
|
1068 close(sock);
|
jbe@112
|
1069 lua_pushnil(L);
|
jbe@112
|
1070 lua_pushstring(L, errmsg);
|
jbe@112
|
1071 return 2;
|
jbe@112
|
1072 }
|
jbe@112
|
1073 if (listen(sock, MOONBR_IO_LISTEN_BACKLOG)) {
|
jbe@112
|
1074 moonbr_io_errmsg();
|
jbe@112
|
1075 close(sock);
|
jbe@112
|
1076 lua_pushnil(L);
|
jbe@112
|
1077 lua_pushstring(L, errmsg);
|
jbe@112
|
1078 return 2;
|
jbe@112
|
1079 }
|
jbe@112
|
1080 listener->fd = sock;
|
jbe@118
|
1081 listener->addrfam = AF_LOCAL;
|
jbe@112
|
1082 listener->nonblocking = -1;
|
jbe@112
|
1083 return 1;
|
jbe@112
|
1084 }
|
jbe@112
|
1085
|
jbe@108
|
1086 static int moonbr_io_tcplisten(lua_State *L) {
|
jbe@108
|
1087 moonbr_io_listener_t *listener;
|
jbe@108
|
1088 const char *host, *port;
|
jbe@108
|
1089 struct addrinfo hints = { 0, };
|
jbe@108
|
1090 struct addrinfo *res, *addrinfo;
|
jbe@108
|
1091 int errcode;
|
jbe@108
|
1092 int sock;
|
jbe@108
|
1093 host = luaL_optstring(L, 1, NULL);
|
jbe@108
|
1094 port = luaL_checkstring(L, 2);
|
jbe@108
|
1095 listener = lua_newuserdata(L, sizeof(moonbr_io_listener_t));
|
jbe@117
|
1096 listener->fd = -1;
|
jbe@108
|
1097 luaL_setmetatable(L, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1098 hints.ai_family = AF_UNSPEC;
|
jbe@108
|
1099 hints.ai_socktype = SOCK_STREAM;
|
jbe@108
|
1100 hints.ai_protocol = IPPROTO_TCP;
|
jbe@108
|
1101 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
|
jbe@108
|
1102 errcode = getaddrinfo(host, port, &hints, &res);
|
jbe@108
|
1103 if (errcode) {
|
jbe@108
|
1104 freeaddrinfo(res);
|
jbe@108
|
1105 if (errcode == EAI_SYSTEM) {
|
jbe@108
|
1106 moonbr_io_errmsg();
|
jbe@108
|
1107 lua_pushnil(L);
|
jbe@108
|
1108 lua_pushfstring(L, "%s: %s", gai_strerror(errcode), errmsg);
|
jbe@108
|
1109 } else {
|
jbe@108
|
1110 lua_pushnil(L);
|
jbe@108
|
1111 lua_pushstring(L, gai_strerror(errcode));
|
jbe@108
|
1112 }
|
jbe@108
|
1113 return 2;
|
jbe@108
|
1114 }
|
jbe@108
|
1115 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
1116 if (addrinfo->ai_family == AF_INET6) goto moonbr_io_tcpconnect_found;
|
jbe@108
|
1117 }
|
jbe@108
|
1118 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
1119 if (addrinfo->ai_family == AF_INET) goto moonbr_io_tcpconnect_found;
|
jbe@108
|
1120 }
|
jbe@108
|
1121 addrinfo = res;
|
jbe@108
|
1122 moonbr_io_tcpconnect_found:
|
jbe@118
|
1123 listener->addrfam = addrinfo->ai_family;
|
jbe@108
|
1124 sock = socket(
|
jbe@134
|
1125 addrinfo->ai_family, /* NOTE: not correctly using PF_* but AF_* constants here */
|
jbe@108
|
1126 addrinfo->ai_socktype | SOCK_CLOEXEC,
|
jbe@108
|
1127 addrinfo->ai_protocol
|
jbe@108
|
1128 );
|
jbe@108
|
1129 if (sock < 0) {
|
jbe@108
|
1130 moonbr_io_errmsg();
|
jbe@108
|
1131 freeaddrinfo(res);
|
jbe@108
|
1132 lua_pushnil(L);
|
jbe@108
|
1133 lua_pushstring(L, errmsg);
|
jbe@108
|
1134 return 2;
|
jbe@108
|
1135 }
|
jbe@120
|
1136 {
|
jbe@120
|
1137 static const int reuseval = 1;
|
jbe@120
|
1138 if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &reuseval, sizeof(reuseval))) {
|
jbe@120
|
1139 moonbr_io_errmsg();
|
jbe@120
|
1140 freeaddrinfo(res);
|
jbe@120
|
1141 close(sock);
|
jbe@120
|
1142 lua_pushnil(L);
|
jbe@120
|
1143 lua_pushfstring(L, "Error while setting SO_REUSEADDR with setsockopt: %s", errmsg);
|
jbe@120
|
1144 return 2;
|
jbe@120
|
1145 }
|
jbe@120
|
1146 }
|
jbe@108
|
1147 if (bind(sock, addrinfo->ai_addr, addrinfo->ai_addrlen)) {
|
jbe@108
|
1148 moonbr_io_errmsg();
|
jbe@108
|
1149 freeaddrinfo(res);
|
jbe@108
|
1150 close(sock);
|
jbe@108
|
1151 lua_pushnil(L);
|
jbe@108
|
1152 lua_pushstring(L, errmsg);
|
jbe@108
|
1153 return 2;
|
jbe@108
|
1154 }
|
jbe@108
|
1155 freeaddrinfo(res);
|
jbe@108
|
1156 if (listen(sock, MOONBR_IO_LISTEN_BACKLOG)) {
|
jbe@108
|
1157 moonbr_io_errmsg();
|
jbe@108
|
1158 close(sock);
|
jbe@108
|
1159 lua_pushnil(L);
|
jbe@108
|
1160 lua_pushstring(L, errmsg);
|
jbe@108
|
1161 return 2;
|
jbe@108
|
1162 }
|
jbe@108
|
1163 listener->fd = sock;
|
jbe@108
|
1164 listener->nonblocking = -1;
|
jbe@108
|
1165 return 1;
|
jbe@108
|
1166 }
|
jbe@108
|
1167
|
jbe@108
|
1168 static int moonbr_io_accept_impl(lua_State *L, int nonblocking) {
|
jbe@108
|
1169 moonbr_io_listener_t *listener;
|
jbe@108
|
1170 int fd;
|
jbe@108
|
1171 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1172 if (listener->fd < 0) luaL_error(L, "Attempt to use a closed listener");
|
jbe@108
|
1173 if (listener->nonblocking != nonblocking) {
|
jbe@108
|
1174 int flags;
|
jbe@108
|
1175 flags = fcntl(listener->fd, F_GETFL, 0);
|
jbe@108
|
1176 if (flags == -1) {
|
jbe@108
|
1177 moonbr_io_errmsg();
|
jbe@108
|
1178 close(listener->fd);
|
jbe@108
|
1179 listener->fd = -1;
|
jbe@108
|
1180 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@108
|
1181 }
|
jbe@108
|
1182 if (nonblocking) flags |= O_NONBLOCK;
|
jbe@108
|
1183 else flags &= ~O_NONBLOCK;
|
jbe@108
|
1184 if (fcntl(listener->fd, F_SETFL, flags) == -1) {
|
jbe@108
|
1185 moonbr_io_errmsg();
|
jbe@108
|
1186 close(listener->fd);
|
jbe@108
|
1187 listener->fd = -1;
|
jbe@108
|
1188 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@108
|
1189 }
|
jbe@108
|
1190 listener->nonblocking = nonblocking;
|
jbe@108
|
1191 }
|
jbe@108
|
1192 while (1) {
|
jbe@214
|
1193 #if defined(__linux__) && !defined(_GNU_SOURCE)
|
jbe@215
|
1194 fd = accept(listener->fd, NULL, NULL);
|
jbe@214
|
1195 if (fd != -1) {
|
jbe@214
|
1196 if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1) {
|
jbe@214
|
1197 moonbr_io_errmsg();
|
jbe@214
|
1198 close(listener->fd);
|
jbe@214
|
1199 listener->fd = -1;
|
jbe@214
|
1200 close(fd);
|
jbe@214
|
1201 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@214
|
1202 }
|
jbe@214
|
1203 }
|
jbe@214
|
1204 #else
|
jbe@108
|
1205 fd = accept4(listener->fd, NULL, NULL, SOCK_CLOEXEC);
|
jbe@214
|
1206 #endif
|
jbe@108
|
1207 if (fd < 0) {
|
jbe@108
|
1208 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@108
|
1209 lua_pushboolean(L, 0);
|
jbe@108
|
1210 lua_pushliteral(L, "No incoming connection pending");
|
jbe@108
|
1211 return 2;
|
jbe@108
|
1212 } else if (errno != EINTR) {
|
jbe@108
|
1213 moonbr_io_errmsg();
|
jbe@108
|
1214 lua_pushnil(L);
|
jbe@108
|
1215 lua_pushstring(L, errmsg);
|
jbe@108
|
1216 return 2;
|
jbe@108
|
1217 }
|
jbe@108
|
1218 } else {
|
jbe@108
|
1219 moonbr_io_pushhandle(L, fd);
|
jbe@108
|
1220 return 1;
|
jbe@108
|
1221 }
|
jbe@108
|
1222 }
|
jbe@108
|
1223 }
|
jbe@108
|
1224
|
jbe@108
|
1225 static int moonbr_io_accept(lua_State *L) {
|
jbe@108
|
1226 return moonbr_io_accept_impl(L, 0);
|
jbe@108
|
1227 }
|
jbe@108
|
1228
|
jbe@108
|
1229 static int moonbr_io_accept_nb(lua_State *L) {
|
jbe@108
|
1230 return moonbr_io_accept_impl(L, 1);
|
jbe@108
|
1231 }
|
jbe@108
|
1232
|
jbe@108
|
1233 static int moonbr_io_unlisten(lua_State *L) {
|
jbe@108
|
1234 moonbr_io_listener_t *listener;
|
jbe@118
|
1235 struct sockaddr_un addr;
|
jbe@118
|
1236 socklen_t addrlen;
|
jbe@118
|
1237 struct stat sb;
|
jbe@108
|
1238 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1239 if (listener->fd < 0) luaL_error(L, "Attempt to close a closed listener");
|
jbe@118
|
1240 addrlen = sizeof(addr);
|
jbe@118
|
1241 if (getsockname(listener->fd, (struct sockaddr *)&addr, &addrlen)) addrlen = 0;
|
jbe@108
|
1242 if (close(listener->fd)) {
|
jbe@108
|
1243 moonbr_io_errmsg();
|
jbe@108
|
1244 listener->fd = -1;
|
jbe@118
|
1245 if (addrlen && addrlen <= sizeof(addr)) {
|
jbe@118
|
1246 if (stat(addr.sun_path, &sb) == 0) {
|
jbe@118
|
1247 if (S_ISSOCK(sb.st_mode)) unlink(addr.sun_path);
|
jbe@118
|
1248 }
|
jbe@118
|
1249 }
|
jbe@108
|
1250 lua_pushnil(L);
|
jbe@108
|
1251 lua_pushstring(L, errmsg);
|
jbe@108
|
1252 return 2;
|
jbe@108
|
1253 }
|
jbe@108
|
1254 listener->fd = -1;
|
jbe@118
|
1255 if (addrlen && addrlen <= sizeof(addr)) {
|
jbe@118
|
1256 if (stat(addr.sun_path, &sb) == 0) {
|
jbe@118
|
1257 if (S_ISSOCK(sb.st_mode)) unlink(addr.sun_path);
|
jbe@118
|
1258 }
|
jbe@118
|
1259 }
|
jbe@108
|
1260 lua_pushboolean(L, 1);
|
jbe@108
|
1261 return 1;
|
jbe@108
|
1262 }
|
jbe@108
|
1263
|
jbe@108
|
1264 static int moonbr_io_listenergc(lua_State *L) {
|
jbe@108
|
1265 moonbr_io_listener_t *listener;
|
jbe@108
|
1266 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@117
|
1267 if (listener->fd >= 0) close(listener->fd);
|
jbe@108
|
1268 listener->fd = -1;
|
jbe@108
|
1269 return 0;
|
jbe@108
|
1270 }
|
jbe@108
|
1271
|
jbe@205
|
1272 static int moonbr_io_exec(lua_State *L) {
|
jbe@205
|
1273 char **argv;
|
jbe@205
|
1274 int i, argc;
|
jbe@205
|
1275 int sockin[2], sockout[2], sockerr[2];
|
jbe@205
|
1276 volatile int errorcond = 0;
|
jbe@213
|
1277 volatile char errmsgbuf[MOONBR_IO_MAXSTRERRORLEN] = MOONBR_IO_STRERROR_R_MSG;
|
jbe@205
|
1278 moonbr_io_child_t *child;
|
jbe@205
|
1279 argc = lua_gettop(L);
|
jbe@205
|
1280 argv = lua_newuserdata(L, (argc + 1) * sizeof(char *));
|
jbe@205
|
1281 for (i=0; i<argc; i++) argv[i] = (char *)luaL_checkstring(L, i+1);
|
jbe@205
|
1282 argv[argc] = NULL;
|
jbe@208
|
1283 child = lua_newuserdata(L, sizeof(moonbr_io_child_t));
|
jbe@208
|
1284 child->pid = 0;
|
jbe@208
|
1285 lua_newtable(L);
|
jbe@208
|
1286 lua_setuservalue(L, -2);
|
jbe@238
|
1287 luaL_setmetatable(L, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@206
|
1288 if (socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, sockin)) {
|
jbe@205
|
1289 moonbr_io_errmsg();
|
jbe@205
|
1290 lua_pushnil(L);
|
jbe@205
|
1291 lua_pushfstring(L, "Could not create socket pair: %s", errmsg);
|
jbe@205
|
1292 return 2;
|
jbe@205
|
1293 }
|
jbe@206
|
1294 if (socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, sockout)) {
|
jbe@205
|
1295 moonbr_io_errmsg();
|
jbe@205
|
1296 close(sockin[0]);
|
jbe@205
|
1297 close(sockin[1]);
|
jbe@205
|
1298 lua_pushnil(L);
|
jbe@205
|
1299 lua_pushfstring(L, "Could not create socket pair: %s", errmsg);
|
jbe@205
|
1300 return 2;
|
jbe@205
|
1301 }
|
jbe@206
|
1302 if (socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, sockerr)) {
|
jbe@205
|
1303 moonbr_io_errmsg();
|
jbe@205
|
1304 close(sockin[0]);
|
jbe@205
|
1305 close(sockin[1]);
|
jbe@205
|
1306 close(sockout[0]);
|
jbe@205
|
1307 close(sockout[1]);
|
jbe@205
|
1308 lua_pushnil(L);
|
jbe@205
|
1309 lua_pushfstring(L, "Could not create socket pair: %s", errmsg);
|
jbe@205
|
1310 return 2;
|
jbe@205
|
1311 }
|
jbe@205
|
1312 child->pid = vfork();
|
jbe@205
|
1313 if (child->pid == -1) {
|
jbe@205
|
1314 moonbr_io_errmsg();
|
jbe@205
|
1315 close(sockin[0]);
|
jbe@205
|
1316 close(sockin[1]);
|
jbe@205
|
1317 close(sockout[0]);
|
jbe@205
|
1318 close(sockout[1]);
|
jbe@205
|
1319 close(sockerr[0]);
|
jbe@205
|
1320 close(sockerr[1]);
|
jbe@205
|
1321 lua_pushnil(L);
|
jbe@205
|
1322 lua_pushfstring(L, "Could not fork: %s", errmsg);
|
jbe@205
|
1323 return 2;
|
jbe@205
|
1324 }
|
jbe@205
|
1325 if (!child->pid) {
|
jbe@208
|
1326 if (dup2(sockin[1], 0) == -1) goto moonbr_io_exec_error1;
|
jbe@208
|
1327 if (dup2(sockout[1], 1) == -1) goto moonbr_io_exec_error1;
|
jbe@208
|
1328 if (dup2(sockerr[1], 2) == -1) goto moonbr_io_exec_error1;
|
jbe@232
|
1329 closefrom(3);
|
jbe@208
|
1330 if (fcntl(0, F_SETFD, 0) == -1) goto moonbr_io_exec_error1;
|
jbe@208
|
1331 if (fcntl(1, F_SETFD, 0) == -1) goto moonbr_io_exec_error1;
|
jbe@208
|
1332 if (fcntl(2, F_SETFD, 0) == -1) goto moonbr_io_exec_error1;
|
jbe@205
|
1333 if (execvp(argv[0], argv)) {
|
jbe@205
|
1334 errorcond = 2;
|
jbe@205
|
1335 strerror_r(errno, (char *)errmsgbuf, MOONBR_IO_MAXSTRERRORLEN);
|
jbe@205
|
1336 _exit(0);
|
jbe@205
|
1337 }
|
jbe@208
|
1338 moonbr_io_exec_error1:
|
jbe@206
|
1339 errorcond = 1;
|
jbe@206
|
1340 strerror_r(errno, (char *)errmsgbuf, MOONBR_IO_MAXSTRERRORLEN);
|
jbe@206
|
1341 _exit(0);
|
jbe@205
|
1342 }
|
jbe@205
|
1343 close(sockin[1]);
|
jbe@205
|
1344 close(sockout[1]);
|
jbe@205
|
1345 close(sockerr[1]);
|
jbe@205
|
1346 if (errorcond) {
|
jbe@205
|
1347 int status;
|
jbe@205
|
1348 close(sockin[0]);
|
jbe@205
|
1349 close(sockout[0]);
|
jbe@205
|
1350 close(sockerr[0]);
|
jbe@205
|
1351 while (waitpid(child->pid, &status, 0) == -1) {
|
jbe@205
|
1352 if (errno != EINTR) {
|
jbe@205
|
1353 moonbr_io_errmsg();
|
jbe@205
|
1354 luaL_error(L, "Error in waitpid call after unsuccessful exec: %s", errmsg);
|
jbe@205
|
1355 }
|
jbe@205
|
1356 }
|
jbe@208
|
1357 child->pid = 0;
|
jbe@205
|
1358 lua_pushnil(L);
|
jbe@205
|
1359 if (errorcond == 2) lua_pushfstring(L, "Could not execute: %s", errmsgbuf);
|
jbe@205
|
1360 else lua_pushfstring(L, "Error in fork: %s", errmsgbuf);
|
jbe@205
|
1361 return 2;
|
jbe@205
|
1362 }
|
jbe@208
|
1363 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
|
jbe@208
|
1364 lua_pushlightuserdata(L, &sockin[0]);
|
jbe@208
|
1365 if (lua_pcall(L, 1, 1, 0)) {
|
jbe@208
|
1366 if (sockin[0] != -1) close(sockin[0]);
|
jbe@208
|
1367 close(sockout[0]);
|
jbe@208
|
1368 close(sockerr[0]);
|
jbe@208
|
1369 goto moonbr_io_exec_error2;
|
jbe@208
|
1370 }
|
jbe@205
|
1371 lua_setfield(L, -2, "stdin");
|
jbe@208
|
1372 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
|
jbe@208
|
1373 lua_pushlightuserdata(L, &sockout[0]);
|
jbe@208
|
1374 if (lua_pcall(L, 1, 1, 0)) {
|
jbe@208
|
1375 if (sockout[0] != -1) close(sockout[0]);
|
jbe@208
|
1376 close(sockerr[0]);
|
jbe@208
|
1377 goto moonbr_io_exec_error2;
|
jbe@208
|
1378 }
|
jbe@205
|
1379 lua_setfield(L, -2, "stdout");
|
jbe@208
|
1380 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
|
jbe@208
|
1381 lua_pushlightuserdata(L, &sockerr[0]);
|
jbe@208
|
1382 if (lua_pcall(L, 1, 1, 0)) {
|
jbe@208
|
1383 if (sockerr[0] != -1) close(sockerr[0]);
|
jbe@208
|
1384 goto moonbr_io_exec_error2;
|
jbe@208
|
1385 }
|
jbe@205
|
1386 lua_setfield(L, -2, "stderr");
|
jbe@205
|
1387 return 1;
|
jbe@208
|
1388 moonbr_io_exec_error2:
|
jbe@208
|
1389 {
|
jbe@208
|
1390 int status;
|
jbe@208
|
1391 while (waitpid(child->pid, &status, 0) == -1) {
|
jbe@208
|
1392 if (errno != EINTR) {
|
jbe@208
|
1393 moonbr_io_errmsg();
|
jbe@208
|
1394 luaL_error(L, "Error in waitpid call after error creating socket handles: %s", errmsg);
|
jbe@208
|
1395 }
|
jbe@208
|
1396 }
|
jbe@208
|
1397 }
|
jbe@208
|
1398 child->pid = 0;
|
jbe@208
|
1399 return lua_error(L);
|
jbe@205
|
1400 }
|
jbe@205
|
1401
|
jbe@205
|
1402 static int moonbr_io_childindex(lua_State *L) {
|
jbe@205
|
1403 luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1404 luaL_checkany(L, 2);
|
jbe@205
|
1405 lua_getuservalue(L, 1);
|
jbe@205
|
1406 lua_pushvalue(L, 2);
|
jbe@205
|
1407 lua_gettable(L, -2);
|
jbe@205
|
1408 if (lua_isnil(L, -1)) {
|
jbe@205
|
1409 luaL_getmetatable(L, MOONBR_IO_CHILD_PT_REGKEY);
|
jbe@205
|
1410 lua_pushvalue(L, 2);
|
jbe@205
|
1411 lua_gettable(L, -2);
|
jbe@205
|
1412 }
|
jbe@205
|
1413 return 1;
|
jbe@205
|
1414 }
|
jbe@205
|
1415
|
jbe@205
|
1416 static int moonbr_io_childnewindex(lua_State *L) {
|
jbe@205
|
1417 luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1418 luaL_checkany(L, 2);
|
jbe@205
|
1419 luaL_checkany(L, 3);
|
jbe@205
|
1420 lua_getuservalue(L, 1);
|
jbe@205
|
1421 lua_pushvalue(L, 2);
|
jbe@205
|
1422 lua_pushvalue(L, 3);
|
jbe@205
|
1423 lua_settable(L, -3);
|
jbe@205
|
1424 return 0;
|
jbe@205
|
1425 }
|
jbe@205
|
1426
|
jbe@205
|
1427 static int moonbr_io_childgc(lua_State *L) {
|
jbe@205
|
1428 moonbr_io_child_t *child;
|
jbe@205
|
1429 child = luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1430 if (child->pid) {
|
jbe@205
|
1431 int status;
|
jbe@205
|
1432 if (kill(child->pid, SIGKILL)) {
|
jbe@205
|
1433 moonbr_io_errmsg();
|
jbe@205
|
1434 luaL_error(L, "Error in kill call during garbage collection: %s", errmsg);
|
jbe@205
|
1435 }
|
jbe@205
|
1436 while (waitpid(child->pid, &status, 0) == -1) {
|
jbe@205
|
1437 if (errno != EINTR) {
|
jbe@205
|
1438 moonbr_io_errmsg();
|
jbe@205
|
1439 luaL_error(L, "Error in waitpid call during garbage collection: %s", errmsg);
|
jbe@205
|
1440 }
|
jbe@205
|
1441 }
|
jbe@205
|
1442 }
|
jbe@205
|
1443 return 0;
|
jbe@205
|
1444 }
|
jbe@205
|
1445
|
jbe@205
|
1446 static int moonbr_io_kill(lua_State *L) {
|
jbe@205
|
1447 moonbr_io_child_t *child;
|
jbe@205
|
1448 int sig;
|
jbe@205
|
1449 child = luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1450 sig = luaL_optinteger(L, 2, SIGTERM);
|
jbe@205
|
1451 if (!child->pid) luaL_error(L, "Attempt to kill an already collected child process");
|
jbe@205
|
1452 if (kill(child->pid, sig)) {
|
jbe@205
|
1453 moonbr_io_errmsg();
|
jbe@205
|
1454 luaL_error(L, "Error in kill call: %s", errmsg);
|
jbe@205
|
1455 }
|
jbe@205
|
1456 lua_settop(L, 1);
|
jbe@205
|
1457 return 1;
|
jbe@205
|
1458 }
|
jbe@205
|
1459
|
jbe@205
|
1460 static int moonbr_io_wait_impl(lua_State *L, int nonblocking) {
|
jbe@205
|
1461 moonbr_io_child_t *child;
|
jbe@205
|
1462 pid_t waitedpid;
|
jbe@205
|
1463 int status;
|
jbe@205
|
1464 child = luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1465 if (!child->pid) luaL_error(L, "Attempt to wait for an already collected child process");
|
jbe@205
|
1466 while ((waitedpid = waitpid(child->pid, &status, nonblocking ? WNOHANG : 0)) == -1) {
|
jbe@205
|
1467 if (errno != EINTR) {
|
jbe@205
|
1468 moonbr_io_errmsg();
|
jbe@205
|
1469 luaL_error(L, "Error in waitpid call: %s", errmsg);
|
jbe@205
|
1470 }
|
jbe@205
|
1471 }
|
jbe@205
|
1472 if (!waitedpid) {
|
jbe@219
|
1473 lua_pushboolean(L, 0);
|
jbe@219
|
1474 lua_pushliteral(L, "Process is still running");
|
jbe@219
|
1475 return 2;
|
jbe@205
|
1476 } else {
|
jbe@205
|
1477 child->pid = 0;
|
jbe@205
|
1478 if (WIFEXITED(status)) {
|
jbe@205
|
1479 lua_pushinteger(L, WEXITSTATUS(status));
|
jbe@205
|
1480 } else if (WIFSIGNALED(status)) {
|
jbe@205
|
1481 lua_pushinteger(L, -WTERMSIG(status));
|
jbe@205
|
1482 } else {
|
jbe@205
|
1483 luaL_error(L, "Unexpected status value returned by waitpid call");
|
jbe@205
|
1484 }
|
jbe@219
|
1485 return 1;
|
jbe@205
|
1486 }
|
jbe@205
|
1487 }
|
jbe@205
|
1488
|
jbe@205
|
1489 static int moonbr_io_wait(lua_State *L) {
|
jbe@205
|
1490 return moonbr_io_wait_impl(L, 0);
|
jbe@205
|
1491 }
|
jbe@205
|
1492
|
jbe@205
|
1493 static int moonbr_io_wait_nb(lua_State *L) {
|
jbe@205
|
1494 return moonbr_io_wait_impl(L, 1);
|
jbe@205
|
1495 }
|
jbe@205
|
1496
|
jbe@205
|
1497 #if LUA_VERSION_NUM >= 503
|
jbe@205
|
1498 static int moonbr_io_wait_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@205
|
1499 #else
|
jbe@205
|
1500 static int moonbr_io_wait_cont(lua_State *L) {
|
jbe@205
|
1501 #endif
|
jbe@205
|
1502 #if !(LUA_VERSION_NUM >= 503)
|
jbe@205
|
1503 int ctx = 0;
|
jbe@205
|
1504 lua_getctx(L, &ctx);
|
jbe@205
|
1505 #endif
|
jbe@205
|
1506 while (1) {
|
jbe@205
|
1507 lua_pushcfunction(L, moonbr_io_wait_nb);
|
jbe@205
|
1508 lua_pushvalue(L, 1);
|
jbe@205
|
1509 lua_call(L, 1, 1);
|
jbe@205
|
1510 if (!lua_isnil(L, -1)) break;
|
jbe@205
|
1511 lua_pushvalue(L, 2);
|
jbe@205
|
1512 lua_callk(L, 0, 0, ctx, moonbr_io_wait_cont);
|
jbe@205
|
1513 }
|
jbe@205
|
1514 return 1;
|
jbe@205
|
1515 }
|
jbe@205
|
1516
|
jbe@205
|
1517 static int moonbr_io_wait_call(lua_State *L) {
|
jbe@205
|
1518 lua_settop(L, 2);
|
jbe@205
|
1519 #if LUA_VERSION_NUM >= 503
|
jbe@205
|
1520 return moonbr_io_wait_cont(L, 0, 0);
|
jbe@205
|
1521 #else
|
jbe@205
|
1522 return moonbr_io_wait_cont(L);
|
jbe@205
|
1523 #endif
|
jbe@205
|
1524 }
|
jbe@205
|
1525
|
jbe@205
|
1526 moonbr_io_yield_wrapper(moonbr_io_wait_yield, moonbr_io_wait_call);
|
jbe@205
|
1527
|
jbe@106
|
1528 static int moonbr_io_poll(lua_State *L) {
|
jbe@106
|
1529 moonbr_io_handle_t *handle;
|
jbe@108
|
1530 moonbr_io_listener_t *listener;
|
jbe@106
|
1531 int fd, isnum;
|
jbe@106
|
1532 int nfds = 0;
|
jbe@106
|
1533 fd_set readfds, writefds, exceptfds;
|
jbe@106
|
1534 struct timeval timeout = {0, };
|
jbe@106
|
1535 int status;
|
jbe@106
|
1536 FD_ZERO(&readfds);
|
jbe@106
|
1537 FD_ZERO(&writefds);
|
jbe@106
|
1538 FD_ZERO(&exceptfds);
|
jbe@106
|
1539 if (!lua_isnoneornil(L, 1)) {
|
jbe@106
|
1540 luaL_checktype(L, 1, LUA_TTABLE);
|
jbe@106
|
1541 for (lua_pushnil(L); lua_next(L, 1); lua_pop(L, 1)) {
|
jbe@106
|
1542 if (lua_toboolean(L, -1)) {
|
jbe@106
|
1543 handle = luaL_testudata(L, -2, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@106
|
1544 if (handle) {
|
jbe@109
|
1545 if (handle->closed) luaL_error(L, "Attempt to poll a closed connection");
|
jbe@106
|
1546 fd = handle->fd;
|
jbe@122
|
1547 if (
|
jbe@122
|
1548 fd < 0 || /* fake EOF to simulate shutdown if fd < 0 */
|
jbe@122
|
1549 handle->readbufin != handle->readbufout /* data pending in buffer */
|
jbe@122
|
1550 ) {
|
jbe@109
|
1551 lua_pushboolean(L, 1);
|
jbe@109
|
1552 return 1;
|
jbe@109
|
1553 }
|
jbe@106
|
1554 } else {
|
jbe@108
|
1555 listener = luaL_testudata(L, -2, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1556 if (listener) {
|
jbe@108
|
1557 fd = listener->fd;
|
jbe@108
|
1558 if (fd < 0) luaL_error(L, "Attempt to poll a closed listener");
|
jbe@108
|
1559 } else {
|
jbe@108
|
1560 fd = lua_tointegerx(L, -2, &isnum);
|
jbe@108
|
1561 if (!isnum) luaL_error(L, "Expected integer (file descriptor), I/O handle, or listener in table key");
|
jbe@108
|
1562 }
|
jbe@106
|
1563 }
|
jbe@138
|
1564 if (fd < 0 || fd >= FD_SETSIZE) luaL_error(L, "File descriptor out of valid range");
|
jbe@106
|
1565 FD_SET(fd, &readfds);
|
jbe@106
|
1566 if (fd+1 > nfds) nfds = fd+1;
|
jbe@106
|
1567 }
|
jbe@106
|
1568 }
|
jbe@106
|
1569 }
|
jbe@106
|
1570 if (!lua_isnoneornil(L, 2)) {
|
jbe@106
|
1571 luaL_checktype(L, 2, LUA_TTABLE);
|
jbe@106
|
1572 for (lua_pushnil(L); lua_next(L, 2); lua_pop(L, 1)) {
|
jbe@106
|
1573 if (lua_toboolean(L, -1)) {
|
jbe@106
|
1574 handle = luaL_testudata(L, -2, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@106
|
1575 if (handle) {
|
jbe@109
|
1576 if (handle->closed) luaL_error(L, "Attempt to poll a closed connection");
|
jbe@109
|
1577 if (handle->finished) luaL_error(L, "Attempt to write-poll a finished connection");
|
jbe@106
|
1578 fd = handle->fd;
|
jbe@106
|
1579 } else {
|
jbe@108
|
1580 listener = luaL_testudata(L, -2, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@109
|
1581 if (listener) luaL_error(L, "Attempt to write-poll a listener");
|
jbe@109
|
1582 fd = lua_tointegerx(L, -2, &isnum);
|
jbe@109
|
1583 if (!isnum) luaL_error(L, "Expected integer (file descriptor) or I/O handle in table key");
|
jbe@106
|
1584 }
|
jbe@138
|
1585 if (fd < 0 || fd >= FD_SETSIZE) luaL_error(L, "File descriptor out of valid range");
|
jbe@106
|
1586 FD_SET(fd, &writefds);
|
jbe@106
|
1587 if (fd+1 > nfds) nfds = fd+1;
|
jbe@106
|
1588 }
|
jbe@106
|
1589 }
|
jbe@106
|
1590 }
|
jbe@106
|
1591 if (!lua_isnoneornil(L, 3)) {
|
jbe@106
|
1592 lua_Number n;
|
jbe@106
|
1593 n = lua_tonumberx(L, 3, &isnum);
|
jbe@146
|
1594 if (isnum && n<0) {
|
jbe@146
|
1595 lua_pushboolean(L, 0);
|
jbe@146
|
1596 lua_pushliteral(L, "Negative timeout");
|
jbe@146
|
1597 return 2;
|
jbe@146
|
1598 } else if (isnum && n>=0 && n<100000000) {
|
jbe@106
|
1599 timeout.tv_sec = n;
|
jbe@106
|
1600 timeout.tv_usec = 1e6 * (n - timeout.tv_sec);
|
jbe@106
|
1601 } else {
|
jbe@106
|
1602 luaL_argcheck(L, 0, 3, "not a valid timeout");
|
jbe@106
|
1603 }
|
jbe@106
|
1604 status = select(nfds, &readfds, &writefds, &exceptfds, &timeout);
|
jbe@106
|
1605 } else {
|
jbe@106
|
1606 status = select(nfds, &readfds, &writefds, &exceptfds, NULL);
|
jbe@106
|
1607 }
|
jbe@106
|
1608 if (status == -1) {
|
jbe@106
|
1609 if (errno == EINTR) {
|
jbe@146
|
1610 lua_pushnil(L);
|
jbe@106
|
1611 lua_pushliteral(L, "Signal received while polling file descriptors");
|
jbe@106
|
1612 return 2;
|
jbe@106
|
1613 } else {
|
jbe@106
|
1614 moonbr_io_errmsg();
|
jbe@106
|
1615 return luaL_error(L, "Unexpected error during \"select\" system call: %s", errmsg);
|
jbe@106
|
1616 }
|
jbe@106
|
1617 } else if (status == 0) {
|
jbe@106
|
1618 lua_pushboolean(L, 0);
|
jbe@106
|
1619 lua_pushliteral(L, "Timeout while polling file descriptors");
|
jbe@106
|
1620 return 2;
|
jbe@106
|
1621 } else {
|
jbe@106
|
1622 lua_pushboolean(L, 1);
|
jbe@106
|
1623 return 1;
|
jbe@106
|
1624 }
|
jbe@106
|
1625 }
|
jbe@106
|
1626
|
jbe@115
|
1627 static int moonbr_io_timeref(lua_State *L) {
|
jbe@115
|
1628 lua_Number sub;
|
jbe@115
|
1629 struct timespec tp;
|
jbe@115
|
1630 sub = luaL_optnumber(L, 1, 0);
|
jbe@115
|
1631 if (clock_gettime(CLOCK_MONOTONIC, &tp)) {
|
jbe@115
|
1632 return luaL_error(L, "Could not access CLOCK_MONOTONIC");
|
jbe@115
|
1633 }
|
jbe@115
|
1634 lua_pushnumber(L, tp.tv_sec + tp.tv_nsec / 1.0e9 - sub);
|
jbe@115
|
1635 return 1;
|
jbe@115
|
1636 }
|
jbe@115
|
1637
|
jbe@243
|
1638 #ifdef MOONBR_IO_USE_TLS
|
jbe@243
|
1639
|
jbe@243
|
1640 #define moonbr_io_tlsconf_string(name, field, func) \
|
jbe@243
|
1641 /* NOTE: use valuetype = lua_getfield(...) for LUA_VERSION_NUM >= 503 */ \
|
jbe@243
|
1642 lua_getfield(L, 1, (field)); \
|
jbe@243
|
1643 valuetype = lua_type(L, -1); \
|
jbe@243
|
1644 if (valuetype != LUA_TNIL) { \
|
jbe@243
|
1645 luaL_argcheck(L, valuetype == LUA_TSTRING, 1, "field \"" field "\" is not a string"); \
|
jbe@243
|
1646 value = lua_tostring(L, -1); \
|
jbe@243
|
1647 if (func(tlsconf, value)) { \
|
jbe@243
|
1648 lua_pushnil(L); \
|
jbe@243
|
1649 lua_pushfstring(L, "Could not set " name " \"%s\"", value); \
|
jbe@243
|
1650 return 2; \
|
jbe@243
|
1651 } \
|
jbe@243
|
1652 } \
|
jbe@243
|
1653 lua_pop(L, 1);
|
jbe@243
|
1654
|
jbe@243
|
1655 #define moonbr_io_tlsconf_binary(name, field, func) \
|
jbe@243
|
1656 /* NOTE: use valuetype = lua_getfield(...) for LUA_VERSION_NUM >= 503 */ \
|
jbe@243
|
1657 lua_getfield(L, 1, (field)); \
|
jbe@243
|
1658 valuetype = lua_type(L, -1); \
|
jbe@243
|
1659 if (valuetype != LUA_TNIL) { \
|
jbe@243
|
1660 luaL_argcheck(L, valuetype == LUA_TSTRING, 1, "field \"" field "\" is not a string"); \
|
jbe@243
|
1661 value = lua_tolstring(L, -1, &valuelen); \
|
jbe@243
|
1662 if (func(tlsconf, (void *)value, valuelen)) { \
|
jbe@243
|
1663 lua_pushnil(L); \
|
jbe@243
|
1664 lua_pushliteral(L, "Could not set " name); \
|
jbe@243
|
1665 return 2; \
|
jbe@243
|
1666 } \
|
jbe@243
|
1667 } \
|
jbe@243
|
1668 lua_pop(L, 1);
|
jbe@243
|
1669
|
jbe@243
|
1670 static int moonbr_io_tlsconf(lua_State *L) {
|
jbe@243
|
1671 struct tls_config *tlsconf;
|
jbe@243
|
1672 int valuetype;
|
jbe@243
|
1673 const char *value;
|
jbe@243
|
1674 size_t valuelen;
|
jbe@243
|
1675 luaL_checktype(L, 1, LUA_TTABLE);
|
jbe@243
|
1676 tlsconf = tls_config_new();
|
jbe@243
|
1677 if (!tlsconf) {
|
jbe@243
|
1678 return luaL_error(L, "Could not allocate memory for TLS configuration");
|
jbe@243
|
1679 }
|
jbe@243
|
1680 lua_pushlightuserdata(L, tlsconf);
|
jbe@243
|
1681 luaL_setmetatable(L, MOONBR_IO_TLSCONF_MT_REGKEY);
|
jbe@243
|
1682 lua_pushvalue(L, 1);
|
jbe@243
|
1683 lua_setuservalue(L, -2);
|
jbe@243
|
1684 moonbr_io_tlsconf_string("CA file", "ca_file", tls_config_set_ca_file);
|
jbe@243
|
1685 moonbr_io_tlsconf_string("CA path", "ca_path", tls_config_set_ca_path);
|
jbe@243
|
1686 moonbr_io_tlsconf_binary("CA", "ca_mem", tls_config_set_ca_mem);
|
jbe@243
|
1687 moonbr_io_tlsconf_string("certificate file", "cert_file", tls_config_set_cert_file);
|
jbe@243
|
1688 moonbr_io_tlsconf_binary("certificate", "cert_mem", tls_config_set_cert_mem);
|
jbe@243
|
1689 moonbr_io_tlsconf_string("key file", "key_file", tls_config_set_key_file);
|
jbe@243
|
1690 moonbr_io_tlsconf_binary("key", "key_mem", tls_config_set_key_mem);
|
jbe@244
|
1691 lua_getfield(L, 1, "verify_client");
|
jbe@244
|
1692 if (lua_toboolean(L, -1)) {
|
jbe@244
|
1693 if (lua_type(L, -1) == LUA_TSTRING) value = lua_tostring(L, -1);
|
jbe@244
|
1694 else value = "";
|
jbe@244
|
1695 if (!strcmp(value, "required")) {
|
jbe@244
|
1696 tls_config_verify_client(tlsconf);
|
jbe@244
|
1697 } else if (!strcmp(value, "optional")) {
|
jbe@244
|
1698 tls_config_verify_client_optional(tlsconf);
|
jbe@244
|
1699 } else {
|
jbe@244
|
1700 luaL_argcheck(L, 0, 1, "field \"verify_client\" must be set to \"required\", \"optional\", or be false or nil");
|
jbe@244
|
1701 }
|
jbe@244
|
1702 }
|
jbe@244
|
1703 lua_pop(L, 1);
|
jbe@243
|
1704 return 1;
|
jbe@243
|
1705 }
|
jbe@243
|
1706
|
jbe@243
|
1707 static int moonbr_io_tlsconfindex(lua_State *L) {
|
jbe@243
|
1708 struct tls_config *tlsconf;
|
jbe@243
|
1709 tlsconf = luaL_checkudata(L, 1, MOONBR_IO_TLSCONF_MT_REGKEY);
|
jbe@243
|
1710 luaL_checkany(L, 2);
|
jbe@243
|
1711 #if LUA_VERSION_NUM >= 503
|
jbe@243
|
1712 if (lua_getuservalue(L, 1) == LUA_TNIL) {
|
jbe@243
|
1713 #else
|
jbe@243
|
1714 lua_getuservalue(L, 1);
|
jbe@243
|
1715 if (lua_isnil(L, -1)) {
|
jbe@243
|
1716 #endif
|
jbe@243
|
1717 return luaL_error(L, "Attempt to use a destroyed TLS configuration");
|
jbe@243
|
1718 }
|
jbe@243
|
1719 lua_pushvalue(L, 2);
|
jbe@243
|
1720 lua_gettable(L, -2);
|
jbe@243
|
1721 return 1;
|
jbe@243
|
1722 }
|
jbe@243
|
1723
|
jbe@243
|
1724 static int moonbr_io_tlsconfgc(lua_State *L) {
|
jbe@243
|
1725 struct tls_config *tlsconf;
|
jbe@243
|
1726 tlsconf = luaL_checkudata(L, 1, MOONBR_IO_TLSCONF_MT_REGKEY);
|
jbe@243
|
1727 #if LUA_VERSION_NUM >= 503
|
jbe@243
|
1728 if (lua_getuservalue(L, 1) == LUA_TNIL) return 0;
|
jbe@243
|
1729 #else
|
jbe@243
|
1730 lua_getuservalue(L, 1);
|
jbe@243
|
1731 if (lua_isnil(L, -1)) return 0;
|
jbe@243
|
1732 #endif
|
jbe@243
|
1733 tls_config_free(tlsconf);
|
jbe@243
|
1734 lua_pushnil(L);
|
jbe@243
|
1735 lua_setuservalue(L, 1);
|
jbe@243
|
1736 return 0;
|
jbe@243
|
1737 }
|
jbe@243
|
1738
|
jbe@243
|
1739 #endif
|
jbe@243
|
1740
|
jbe@79
|
1741 static const struct luaL_Reg moonbr_io_handle_methods[] = {
|
jbe@85
|
1742 {"read", moonbr_io_read},
|
jbe@85
|
1743 {"read_nb", moonbr_io_read_nb},
|
jbe@140
|
1744 {"read_call", moonbr_io_read_call},
|
jbe@140
|
1745 {"read_yield", moonbr_io_read_yield},
|
jbe@86
|
1746 {"drain", moonbr_io_drain},
|
jbe@86
|
1747 {"drain_nb", moonbr_io_drain_nb},
|
jbe@144
|
1748 {"drain_call", moonbr_io_drain_call},
|
jbe@144
|
1749 {"drain_yield", moonbr_io_drain_yield},
|
jbe@80
|
1750 {"write", moonbr_io_write},
|
jbe@81
|
1751 {"write_nb", moonbr_io_write_nb},
|
jbe@145
|
1752 {"write_call", moonbr_io_write_call},
|
jbe@145
|
1753 {"write_yield", moonbr_io_write_yield},
|
jbe@80
|
1754 {"flush", moonbr_io_flush},
|
jbe@81
|
1755 {"flush_nb", moonbr_io_flush_nb},
|
jbe@145
|
1756 {"flush_call", moonbr_io_flush_call},
|
jbe@145
|
1757 {"flush_yield", moonbr_io_flush_yield},
|
jbe@88
|
1758 {"finish", moonbr_io_finish},
|
jbe@87
|
1759 {"close", moonbr_io_close},
|
jbe@85
|
1760 {"reset", moonbr_io_reset},
|
jbe@79
|
1761 {NULL, NULL}
|
jbe@79
|
1762 };
|
jbe@79
|
1763
|
jbe@79
|
1764 static const struct luaL_Reg moonbr_io_handle_metamethods[] = {
|
jbe@79
|
1765 {"__index", moonbr_io_handleindex},
|
jbe@79
|
1766 {"__newindex", moonbr_io_handlenewindex},
|
jbe@108
|
1767 {"__gc", moonbr_io_handlegc},
|
jbe@108
|
1768 {NULL, NULL}
|
jbe@108
|
1769 };
|
jbe@108
|
1770
|
jbe@108
|
1771 static const struct luaL_Reg moonbr_io_listener_methods[] = {
|
jbe@108
|
1772 {"accept", moonbr_io_accept},
|
jbe@108
|
1773 {"accept_nb", moonbr_io_accept_nb},
|
jbe@108
|
1774 {"close", moonbr_io_unlisten},
|
jbe@108
|
1775 {NULL, NULL}
|
jbe@108
|
1776 };
|
jbe@108
|
1777
|
jbe@108
|
1778 static const struct luaL_Reg moonbr_io_listener_metamethods[] = {
|
jbe@108
|
1779 {"__gc", moonbr_io_listenergc},
|
jbe@79
|
1780 {NULL, NULL}
|
jbe@79
|
1781 };
|
jbe@79
|
1782
|
jbe@205
|
1783 static const struct luaL_Reg moonbr_io_child_methods[] = {
|
jbe@205
|
1784 {"kill", moonbr_io_kill},
|
jbe@205
|
1785 {"wait", moonbr_io_wait},
|
jbe@205
|
1786 {"wait_nb", moonbr_io_wait_nb},
|
jbe@205
|
1787 {"wait_call", moonbr_io_wait_call},
|
jbe@205
|
1788 {"wait_yield", moonbr_io_wait_yield},
|
jbe@205
|
1789 {NULL, NULL}
|
jbe@205
|
1790 };
|
jbe@205
|
1791
|
jbe@205
|
1792 static const struct luaL_Reg moonbr_io_child_metamethods[] = {
|
jbe@205
|
1793 {"__index", moonbr_io_childindex},
|
jbe@205
|
1794 {"__newindex", moonbr_io_childnewindex},
|
jbe@205
|
1795 {"__gc", moonbr_io_childgc},
|
jbe@205
|
1796 {NULL, NULL}
|
jbe@205
|
1797 };
|
jbe@205
|
1798
|
jbe@79
|
1799 static const struct luaL_Reg moonbr_io_module_funcs[] = {
|
jbe@111
|
1800 {"localconnect", moonbr_io_localconnect},
|
jbe@111
|
1801 {"localconnect_nb", moonbr_io_localconnect_nb},
|
jbe@98
|
1802 {"tcpconnect", moonbr_io_tcpconnect},
|
jbe@99
|
1803 {"tcpconnect_nb", moonbr_io_tcpconnect_nb},
|
jbe@112
|
1804 {"locallisten", moonbr_io_locallisten},
|
jbe@108
|
1805 {"tcplisten", moonbr_io_tcplisten},
|
jbe@205
|
1806 {"exec", moonbr_io_exec},
|
jbe@106
|
1807 {"poll", moonbr_io_poll},
|
jbe@115
|
1808 {"timeref", moonbr_io_timeref},
|
jbe@243
|
1809 #ifdef MOONBR_IO_USE_TLS
|
jbe@243
|
1810 {"tlsconf", moonbr_io_tlsconf},
|
jbe@243
|
1811 #endif
|
jbe@79
|
1812 {NULL, NULL}
|
jbe@79
|
1813 };
|
jbe@79
|
1814
|
jbe@243
|
1815 #ifdef MOONBR_IO_USE_TLS
|
jbe@243
|
1816 static const struct luaL_Reg moonbr_io_tlsconf_metamethods[] = {
|
jbe@243
|
1817 {"__index", moonbr_io_tlsconfindex},
|
jbe@243
|
1818 {"__gc", moonbr_io_tlsconfgc},
|
jbe@243
|
1819 {NULL, NULL}
|
jbe@243
|
1820 };
|
jbe@243
|
1821 #endif
|
jbe@243
|
1822
|
jbe@79
|
1823 int luaopen_moonbridge_io(lua_State *L) {
|
jbe@79
|
1824
|
jbe@113
|
1825 signal(SIGPIPE, SIG_IGN); /* generate I/O errors instead of signal 13 */
|
jbe@113
|
1826
|
jbe@80
|
1827 lua_newtable(L); // module
|
jbe@80
|
1828
|
jbe@79
|
1829 lua_newtable(L); // public metatable
|
jbe@79
|
1830 lua_newtable(L); // handle methods
|
jbe@79
|
1831 luaL_setfuncs(L, moonbr_io_handle_methods, 0);
|
jbe@80
|
1832 lua_pushvalue(L, -1);
|
jbe@146
|
1833 lua_setfield(L, -4, "handle_pt");
|
jbe@79
|
1834 lua_setfield(L, -2, "__index");
|
jbe@79
|
1835 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
|
jbe@79
|
1836
|
jbe@79
|
1837 lua_newtable(L); // handle metatable
|
jbe@79
|
1838 luaL_setfuncs(L, moonbr_io_handle_metamethods, 0);
|
jbe@146
|
1839 lua_pushvalue(L, -1);
|
jbe@146
|
1840 lua_setfield(L, -3, "handle_mt");
|
jbe@79
|
1841 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
1842
|
jbe@108
|
1843 lua_newtable(L); // listener metatable
|
jbe@108
|
1844 luaL_setfuncs(L, moonbr_io_listener_metamethods, 0);
|
jbe@108
|
1845 lua_newtable(L); // listener methods
|
jbe@108
|
1846 luaL_setfuncs(L, moonbr_io_listener_methods, 0);
|
jbe@108
|
1847 lua_pushvalue(L, -1);
|
jbe@146
|
1848 lua_setfield(L, -4, "listener_pt");
|
jbe@108
|
1849 lua_setfield(L, -2, "__index");
|
jbe@146
|
1850 lua_pushvalue(L, -1);
|
jbe@146
|
1851 lua_setfield(L, -3, "listener_mt");
|
jbe@108
|
1852 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1853
|
jbe@205
|
1854 lua_newtable(L); // child methods
|
jbe@205
|
1855 luaL_setfuncs(L, moonbr_io_child_methods, 0);
|
jbe@205
|
1856 lua_pushvalue(L, -1);
|
jbe@205
|
1857 lua_setfield(L, -3, "child_pt");
|
jbe@205
|
1858 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_CHILD_PT_REGKEY);
|
jbe@205
|
1859 lua_newtable(L); // child metatable
|
jbe@205
|
1860 luaL_setfuncs(L, moonbr_io_child_metamethods, 0);
|
jbe@205
|
1861 lua_pushvalue(L, -1);
|
jbe@205
|
1862 lua_setfield(L, -3, "child_mt");
|
jbe@205
|
1863 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1864
|
jbe@243
|
1865 #ifdef MOONBR_IO_USE_TLS
|
jbe@243
|
1866 if(tls_init()) {
|
jbe@243
|
1867 return luaL_error(L, "Could not initialize TLS library");
|
jbe@243
|
1868 }
|
jbe@243
|
1869 lua_newtable(L); // tlsconf metatable
|
jbe@243
|
1870 luaL_setfuncs(L, moonbr_io_tlsconf_metamethods, 0);
|
jbe@243
|
1871 lua_pushvalue(L, -1);
|
jbe@243
|
1872 lua_setfield(L, -3, "tlsconf_mt");
|
jbe@243
|
1873 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_TLSCONF_MT_REGKEY);
|
jbe@243
|
1874 #endif
|
jbe@243
|
1875
|
jbe@205
|
1876 moonbr_io_pushhandle(L, 0);
|
jbe@205
|
1877 lua_setfield(L, -2, "stdin");
|
jbe@205
|
1878 moonbr_io_pushhandle(L, 1);
|
jbe@205
|
1879 lua_setfield(L, -2, "stdout");
|
jbe@205
|
1880 moonbr_io_pushhandle(L, 2);
|
jbe@205
|
1881 lua_setfield(L, -2, "stderr");
|
jbe@205
|
1882
|
jbe@79
|
1883 luaL_setfuncs(L, moonbr_io_module_funcs, 0);
|
jbe@79
|
1884 return 1;
|
jbe@79
|
1885
|
jbe@79
|
1886 }
|
jbe@79
|
1887
|