annotate src/usocket.c @ 4:f0a27ccb1193 tip

Added ignore file
author Eric Wing <ewing . public |-at-| gmail . com>
date Sat, 30 Aug 2008 08:46:39 -0700
parents 4b915342e2a8
children
rev   line source
0
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
1 /*=========================================================================*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
2 * Socket compatibilization module for Unix
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
3 * LuaSocket toolkit
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
4 *
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
5 * The code is now interrupt-safe.
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
6 * The penalty of calling select to avoid busy-wait is only paid when
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
7 * the I/O call fail in the first place.
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
8 *
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
9 * RCS ID: $Id: usocket.c,v 1.38 2007/10/13 23:55:20 diego Exp $
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
10 \*=========================================================================*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
11 #include <string.h>
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
12 #include <signal.h>
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
13
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
14 #include "socket.h"
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
15
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
16 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
17 * Wait for readable/writable/connected socket with timeout
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
18 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
19 #ifdef SOCKET_POLL
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
20 #include <sys/poll.h>
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
21
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
22 #define WAITFD_R POLLIN
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
23 #define WAITFD_W POLLOUT
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
24 #define WAITFD_C (POLLIN|POLLOUT)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
25 int socket_waitfd(p_socket ps, int sw, p_timeout tm) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
26 int ret;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
27 struct pollfd pfd;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
28 pfd.fd = *ps;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
29 pfd.events = sw;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
30 pfd.revents = 0;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
31 if (timeout_iszero(tm)) return IO_TIMEOUT; /* optimize timeout == 0 case */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
32 do {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
33 int t = (int)(timeout_getretry(tm)*1e3);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
34 ret = poll(&pfd, 1, t >= 0? t: -1);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
35 } while (ret == -1 && errno == EINTR);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
36 if (ret == -1) return errno;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
37 if (ret == 0) return IO_TIMEOUT;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
38 if (sw == WAITFD_C && (pfd.revents & (POLLIN|POLLERR))) return IO_CLOSED;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
39 return IO_DONE;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
40 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
41 #else
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
42
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
43 #define WAITFD_R 1
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
44 #define WAITFD_W 2
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
45 #define WAITFD_C (WAITFD_R|WAITFD_W)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
46
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
47 int socket_waitfd(p_socket ps, int sw, p_timeout tm) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
48 int ret;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
49 fd_set rfds, wfds, *rp, *wp;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
50 struct timeval tv, *tp;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
51 double t;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
52 if (timeout_iszero(tm)) return IO_TIMEOUT; /* optimize timeout == 0 case */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
53 do {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
54 /* must set bits within loop, because select may have modifed them */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
55 rp = wp = NULL;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
56 if (sw & WAITFD_R) { FD_ZERO(&rfds); FD_SET(*ps, &rfds); rp = &rfds; }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
57 if (sw & WAITFD_W) { FD_ZERO(&wfds); FD_SET(*ps, &wfds); wp = &wfds; }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
58 t = timeout_getretry(tm);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
59 tp = NULL;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
60 if (t >= 0.0) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
61 tv.tv_sec = (int)t;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
62 tv.tv_usec = (int)((t-tv.tv_sec)*1.0e6);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
63 tp = &tv;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
64 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
65 ret = select(*ps+1, rp, wp, NULL, tp);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
66 } while (ret == -1 && errno == EINTR);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
67 if (ret == -1) return errno;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
68 if (ret == 0) return IO_TIMEOUT;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
69 if (sw == WAITFD_C && FD_ISSET(*ps, &rfds)) return IO_CLOSED;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
70 return IO_DONE;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
71 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
72 #endif
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
73
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
74
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
75 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
76 * Initializes module
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
77 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
78 int socket_open(void) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
79 /* instals a handler to ignore sigpipe or it will crash us */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
80 signal(SIGPIPE, SIG_IGN);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
81 return 1;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
82 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
83
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
84 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
85 * Close module
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
86 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
87 int socket_close(void) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
88 return 1;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
89 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
90
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
91 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
92 * Close and inutilize socket
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
93 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
94 void socket_destroy(p_socket ps) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
95 if (*ps != SOCKET_INVALID) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
96 socket_setblocking(ps);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
97 close(*ps);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
98 *ps = SOCKET_INVALID;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
99 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
100 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
101
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
102 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
103 * Select with timeout control
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
104 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
105 int socket_select(t_socket n, fd_set *rfds, fd_set *wfds, fd_set *efds,
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
106 p_timeout tm) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
107 int ret;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
108 do {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
109 struct timeval tv;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
110 double t = timeout_getretry(tm);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
111 tv.tv_sec = (int) t;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
112 tv.tv_usec = (int) ((t - tv.tv_sec) * 1.0e6);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
113 /* timeout = 0 means no wait */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
114 ret = select(n, rfds, wfds, efds, t >= 0.0 ? &tv: NULL);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
115 } while (ret < 0 && errno == EINTR);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
116 return ret;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
117 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
118
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
119 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
120 * Creates and sets up a socket
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
121 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
122 int socket_create(p_socket ps, int domain, int type, int protocol) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
123 *ps = socket(domain, type, protocol);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
124 if (*ps != SOCKET_INVALID) return IO_DONE;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
125 else return errno;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
126 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
127
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
128 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
129 * Binds or returns error message
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
130 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
131 int socket_bind(p_socket ps, SA *addr, socklen_t len) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
132 int err = IO_DONE;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
133 socket_setblocking(ps);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
134 if (bind(*ps, addr, len) < 0) err = errno;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
135 socket_setnonblocking(ps);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
136 return err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
137 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
138
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
139 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
140 *
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
141 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
142 int socket_listen(p_socket ps, int backlog) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
143 int err = IO_DONE;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
144 socket_setblocking(ps);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
145 if (listen(*ps, backlog)) err = errno;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
146 socket_setnonblocking(ps);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
147 return err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
148 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
149
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
150 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
151 *
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
152 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
153 void socket_shutdown(p_socket ps, int how) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
154 socket_setblocking(ps);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
155 shutdown(*ps, how);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
156 socket_setnonblocking(ps);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
157 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
158
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
159 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
160 * Connects or returns error message
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
161 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
162 int socket_connect(p_socket ps, SA *addr, socklen_t len, p_timeout tm) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
163 int err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
164 /* avoid calling on closed sockets */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
165 if (*ps == SOCKET_INVALID) return IO_CLOSED;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
166 /* call connect until done or failed without being interrupted */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
167 do if (connect(*ps, addr, len) == 0) return IO_DONE;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
168 while ((err = errno) == EINTR);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
169 /* if connection failed immediately, return error code */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
170 if (err != EINPROGRESS && err != EAGAIN) return err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
171 /* zero timeout case optimization */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
172 if (timeout_iszero(tm)) return IO_TIMEOUT;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
173 /* wait until we have the result of the connection attempt or timeout */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
174 err = socket_waitfd(ps, WAITFD_C, tm);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
175 if (err == IO_CLOSED) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
176 if (recv(*ps, (char *) &err, 0, 0) == 0) return IO_DONE;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
177 else return errno;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
178 } else return err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
179 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
180
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
181 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
182 * Accept with timeout
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
183 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
184 int socket_accept(p_socket ps, p_socket pa, SA *addr, socklen_t *len, p_timeout tm) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
185 SA daddr;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
186 socklen_t dlen = sizeof(daddr);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
187 if (*ps == SOCKET_INVALID) return IO_CLOSED;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
188 if (!addr) addr = &daddr;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
189 if (!len) len = &dlen;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
190 for ( ;; ) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
191 int err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
192 if ((*pa = accept(*ps, addr, len)) != SOCKET_INVALID) return IO_DONE;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
193 err = errno;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
194 if (err == EINTR) continue;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
195 if (err != EAGAIN && err != ECONNABORTED) return err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
196 if ((err = socket_waitfd(ps, WAITFD_R, tm)) != IO_DONE) return err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
197 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
198 /* can't reach here */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
199 return IO_UNKNOWN;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
200 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
201
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
202 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
203 * Send with timeout
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
204 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
205 int socket_send(p_socket ps, const char *data, size_t count,
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
206 size_t *sent, p_timeout tm)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
207 {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
208 int err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
209 *sent = 0;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
210 /* avoid making system calls on closed sockets */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
211 if (*ps == SOCKET_INVALID) return IO_CLOSED;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
212 /* loop until we send something or we give up on error */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
213 for ( ;; ) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
214 long put = (long) send(*ps, data, count, 0);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
215 /* if we sent anything, we are done */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
216 if (put > 0) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
217 *sent = put;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
218 return IO_DONE;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
219 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
220 err = errno;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
221 /* send can't really return 0, but EPIPE means the connection was
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
222 closed */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
223 if (put == 0 || err == EPIPE) return IO_CLOSED;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
224 /* we call was interrupted, just try again */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
225 if (err == EINTR) continue;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
226 /* if failed fatal reason, report error */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
227 if (err != EAGAIN) return err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
228 /* wait until we can send something or we timeout */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
229 if ((err = socket_waitfd(ps, WAITFD_W, tm)) != IO_DONE) return err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
230 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
231 /* can't reach here */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
232 return IO_UNKNOWN;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
233 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
234
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
235 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
236 * Sendto with timeout
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
237 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
238 int socket_sendto(p_socket ps, const char *data, size_t count, size_t *sent,
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
239 SA *addr, socklen_t len, p_timeout tm)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
240 {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
241 int err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
242 *sent = 0;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
243 if (*ps == SOCKET_INVALID) return IO_CLOSED;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
244 for ( ;; ) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
245 long put = (long) sendto(*ps, data, count, 0, addr, len);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
246 if (put > 0) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
247 *sent = put;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
248 return IO_DONE;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
249 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
250 err = errno;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
251 if (put == 0 || err == EPIPE) return IO_CLOSED;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
252 if (err == EINTR) continue;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
253 if (err != EAGAIN) return err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
254 if ((err = socket_waitfd(ps, WAITFD_W, tm)) != IO_DONE) return err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
255 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
256 return IO_UNKNOWN;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
257 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
258
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
259 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
260 * Receive with timeout
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
261 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
262 int socket_recv(p_socket ps, char *data, size_t count, size_t *got, p_timeout tm) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
263 int err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
264 *got = 0;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
265 if (*ps == SOCKET_INVALID) return IO_CLOSED;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
266 for ( ;; ) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
267 long taken = (long) recv(*ps, data, count, 0);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
268 if (taken > 0) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
269 *got = taken;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
270 return IO_DONE;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
271 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
272 err = errno;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
273 if (taken == 0) return IO_CLOSED;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
274 if (err == EINTR) continue;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
275 if (err != EAGAIN) return err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
276 if ((err = socket_waitfd(ps, WAITFD_R, tm)) != IO_DONE) return err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
277 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
278 return IO_UNKNOWN;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
279 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
280
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
281 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
282 * Recvfrom with timeout
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
283 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
284 int socket_recvfrom(p_socket ps, char *data, size_t count, size_t *got,
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
285 SA *addr, socklen_t *len, p_timeout tm) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
286 int err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
287 *got = 0;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
288 if (*ps == SOCKET_INVALID) return IO_CLOSED;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
289 for ( ;; ) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
290 long taken = (long) recvfrom(*ps, data, count, 0, addr, len);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
291 if (taken > 0) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
292 *got = taken;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
293 return IO_DONE;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
294 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
295 err = errno;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
296 if (taken == 0) return IO_CLOSED;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
297 if (err == EINTR) continue;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
298 if (err != EAGAIN) return err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
299 if ((err = socket_waitfd(ps, WAITFD_R, tm)) != IO_DONE) return err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
300 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
301 return IO_UNKNOWN;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
302 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
303
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
304 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
305 * Put socket into blocking mode
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
306 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
307 void socket_setblocking(p_socket ps) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
308 int flags = fcntl(*ps, F_GETFL, 0);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
309 flags &= (~(O_NONBLOCK));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
310 fcntl(*ps, F_SETFL, flags);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
311 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
312
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
313 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
314 * Put socket into non-blocking mode
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
315 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
316 void socket_setnonblocking(p_socket ps) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
317 int flags = fcntl(*ps, F_GETFL, 0);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
318 flags |= O_NONBLOCK;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
319 fcntl(*ps, F_SETFL, flags);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
320 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
321
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
322 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
323 * DNS helpers
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
324 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
325 int socket_gethostbyaddr(const char *addr, socklen_t len, struct hostent **hp) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
326 *hp = gethostbyaddr(addr, len, AF_INET);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
327 if (*hp) return IO_DONE;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
328 else if (h_errno) return h_errno;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
329 else if (errno) return errno;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
330 else return IO_UNKNOWN;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
331 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
332
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
333 int socket_gethostbyname(const char *addr, struct hostent **hp) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
334 *hp = gethostbyname(addr);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
335 if (*hp) return IO_DONE;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
336 else if (h_errno) return h_errno;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
337 else if (errno) return errno;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
338 else return IO_UNKNOWN;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
339 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
340
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
341 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
342 * Error translation functions
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
343 * Make sure important error messages are standard
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
344 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
345 const char *socket_hoststrerror(int err) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
346 if (err <= 0) return io_strerror(err);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
347 switch (err) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
348 case HOST_NOT_FOUND: return "host not found";
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
349 default: return hstrerror(err);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
350 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
351 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
352
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
353 const char *socket_strerror(int err) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
354 if (err <= 0) return io_strerror(err);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
355 switch (err) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
356 case EADDRINUSE: return "address already in use";
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
357 case EISCONN: return "already connected";
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
358 case EACCES: return "permission denied";
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
359 case ECONNREFUSED: return "connection refused";
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
360 case ECONNABORTED: return "closed";
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
361 case ECONNRESET: return "closed";
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
362 case ETIMEDOUT: return "timeout";
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
363 default: return strerror(errno);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
364 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
365 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
366
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
367 const char *socket_ioerror(p_socket ps, int err) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
368 (void) ps;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
369 return socket_strerror(err);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
370 }