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comparison src/os/unix/ngx_socket.c @ 0:f0b350454894 NGINX_0_1_0

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nginx 0.1.0 *) The first public version.
author Igor Sysoev <http://sysoev.ru>
date Mon, 04 Oct 2004 00:00:00 +0400
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children cc9f381affaa
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-1:000000000000 0:f0b350454894
1
2 /*
3 * Copyright (C) Igor Sysoev
4 */
5
6
7 #include <ngx_config.h>
8 #include <ngx_core.h>
9
10
11 /*
12 * ioctl(FIONBIO) sets a blocking mode with the single syscall
13 * while fcntl(F_SETFL, ~O_NONBLOCK) needs to learn before
14 * the previous state using fcntl(F_GETFL).
15 *
16 * ioctl() and fcntl() are syscalls on at least FreeBSD 2.x, Linux 2.2
17 * and Solaris 7.
18 *
19 * ioctl() in Linux 2.4 and 2.6 uses BKL, however fcntl(F_SETFL) uses it too.
20 */
21
22
23 #if (HAVE_FIONBIO)
24
25 int ngx_nonblocking(ngx_socket_t s)
26 {
27 u_long nb;
28
29 nb = 1;
30
31 return ioctl(s, FIONBIO, &nb);
32 }
33
34
35 int ngx_blocking(ngx_socket_t s)
36 {
37 u_long nb;
38
39 nb = 0;
40
41 return ioctl(s, FIONBIO, &nb);
42 }
43
44 #endif
45
46
47 #ifdef __FreeBSD__
48
49 int ngx_tcp_nopush(ngx_socket_t s)
50 {
51 int tcp_nopush;
52
53 tcp_nopush = 1;
54
55 return setsockopt(s, IPPROTO_TCP, TCP_NOPUSH,
56 (const void *) &tcp_nopush, sizeof(int));
57 }
58
59
60 int ngx_tcp_push(ngx_socket_t s)
61 {
62 int tcp_nopush;
63
64 tcp_nopush = 0;
65
66 return setsockopt(s, IPPROTO_TCP, TCP_NOPUSH,
67 (const void *) &tcp_nopush, sizeof(int));
68 }
69
70 #elif __linux__
71
72 int ngx_tcp_nopush(ngx_socket_t s)
73 {
74 int cork;
75
76 cork = 1;
77
78 return setsockopt(s, IPPROTO_TCP, TCP_CORK,
79 (const void *) &cork, sizeof(int));
80 }
81
82 int ngx_tcp_push(ngx_socket_t s)
83 {
84 int cork;
85
86 cork = 0;
87
88 return setsockopt(s, IPPROTO_TCP, TCP_CORK,
89 (const void *) &cork, sizeof(int));
90 }
91
92 #else
93
94 int ngx_tcp_nopush(ngx_socket_t s)
95 {
96 return NGX_OK;
97 }
98
99 int ngx_tcp_push(ngx_socket_t s)
100 {
101 return NGX_OK;
102 }
103
104 #endif