moonbridge

changeset 319:8c1aacea1210

Methods to manipulate socket buffer sizes
author jbe
date Thu Oct 04 14:30:20 2018 +0200 (14 months ago)
parents 1c012ef2a22a
children 5fe68ba5fe0e
files moonbridge_io.c
line diff
     1.1 --- a/moonbridge_io.c	Thu Jul 26 21:43:22 2018 +0200
     1.2 +++ b/moonbridge_io.c	Thu Oct 04 14:30:20 2018 +0200
     1.3 @@ -187,6 +187,63 @@
     1.4    return 0;
     1.5  }
     1.6  
     1.7 +static int moonbr_io_get_rcvbuf(lua_State *L) {
     1.8 +  moonbr_io_handle_t *handle;
     1.9 +  int value;
    1.10 +  socklen_t valsz = sizeof(value);
    1.11 +  handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
    1.12 +  /* TODO: handle closed and finished I/O handles differently? */
    1.13 +  if (handle->fd < 0) luaL_error(L, "Attempt to operate on closed or finished I/O handle");
    1.14 +  if (getsockopt(handle->fd, SOL_SOCKET, SO_RCVBUF, &value, &valsz)) {
    1.15 +    moonbr_io_prepare_errmsg();
    1.16 +    moonbr_io_return_prepared_errmsg();
    1.17 +  }
    1.18 +  lua_pushinteger(L, value);
    1.19 +  return 1;
    1.20 +}
    1.21 +
    1.22 +static int moonbr_io_get_sndbuf(lua_State *L) {
    1.23 +  moonbr_io_handle_t *handle;
    1.24 +  int value;
    1.25 +  socklen_t valsz = sizeof(value);
    1.26 +  handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
    1.27 +  if (handle->fd < 0) luaL_error(L, "Attempt to operate on closed or finished I/O handle");
    1.28 +  if (getsockopt(handle->fd, SOL_SOCKET, SO_SNDBUF, &value, &valsz)) {
    1.29 +    moonbr_io_prepare_errmsg();
    1.30 +    moonbr_io_return_prepared_errmsg();
    1.31 +  }
    1.32 +  lua_pushinteger(L, value);
    1.33 +  return 1;
    1.34 +}
    1.35 +
    1.36 +static int moonbr_io_set_rcvbuf(lua_State *L) {
    1.37 +  moonbr_io_handle_t *handle;
    1.38 +  int value;
    1.39 +  handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
    1.40 +  if (handle->fd < 0) luaL_error(L, "Attempt to operate on closed or finished I/O handle");
    1.41 +  value = luaL_checkinteger(L, 2);
    1.42 +  if (setsockopt(handle->fd, SOL_SOCKET, SO_RCVBUF, &value, sizeof(value))) {
    1.43 +    moonbr_io_prepare_errmsg();
    1.44 +    moonbr_io_return_prepared_errmsg();
    1.45 +  }
    1.46 +  lua_pushvalue(L, 1);
    1.47 +  return 1;
    1.48 +}
    1.49 +
    1.50 +static int moonbr_io_set_sndbuf(lua_State *L) {
    1.51 +  moonbr_io_handle_t *handle;
    1.52 +  int value;
    1.53 +  handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
    1.54 +  if (handle->fd < 0) luaL_error(L, "Attempt to operate on closed or finished I/O handle");
    1.55 +  value = luaL_checkinteger(L, 2);
    1.56 +  if (setsockopt(handle->fd, SOL_SOCKET, SO_SNDBUF, &value, sizeof(value))) {
    1.57 +    moonbr_io_prepare_errmsg();
    1.58 +    moonbr_io_return_prepared_errmsg();
    1.59 +  }
    1.60 +  lua_pushvalue(L, 1);
    1.61 +  return 1;
    1.62 +}
    1.63 +
    1.64  static int moonbr_io_read_impl(lua_State *L, int nonblocking, int drain) {
    1.65    moonbr_io_handle_t *handle;
    1.66    lua_Integer maxread;
    1.67 @@ -2057,6 +2114,10 @@
    1.68  #endif /* MOONBR_IO_USE_TLS */
    1.69  
    1.70  static const struct luaL_Reg moonbr_io_handle_methods[] = {
    1.71 +  {"get_rcvbuf", moonbr_io_get_rcvbuf},
    1.72 +  {"get_sndbuf", moonbr_io_get_sndbuf},
    1.73 +  {"set_rcvbuf", moonbr_io_set_rcvbuf},
    1.74 +  {"set_sndbuf", moonbr_io_set_sndbuf},
    1.75    {"read", moonbr_io_read},
    1.76    {"read_nb", moonbr_io_read_nb},
    1.77    {"read_call", moonbr_io_read_call},

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