Mercurial > hg > nginx
annotate src/os/unix/ngx_socket.c @ 1689:0b592a68aade
ngx_udp_recv()
author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 03 Dec 2007 16:46:46 +0000 |
parents | f8d6894f0990 |
children | d620f497c50f |
rev | line source |
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1 |
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2 /* |
444
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3 * Copyright (C) Igor Sysoev |
441
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4 */ |
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5 |
59
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6 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
59
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9 |
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10 |
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11 /* |
707 | 12 * ioctl(FIONBIO) sets a non-blocking mode with the single syscall |
13 * while fcntl(F_SETFL, O_NONBLOCK) needs to learn the current state | |
14 * using fcntl(F_GETFL). | |
253
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15 * |
563 | 16 * ioctl() and fcntl() are syscalls at least in FreeBSD 2.x, Linux 2.2 |
346
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17 * and Solaris 7. |
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18 * |
452 | 19 * ioctl() in Linux 2.4 and 2.6 uses BKL, however, fcntl(F_SETFL) uses it too. |
253
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20 */ |
93
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21 |
101
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22 |
469 | 23 #if (NGX_HAVE_FIONBIO) |
59
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24 |
501 | 25 int |
26 ngx_nonblocking(ngx_socket_t s) | |
59
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27 { |
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28 int nb; |
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29 |
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30 nb = 1; |
59
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31 |
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32 return ioctl(s, FIONBIO, &nb); |
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33 } |
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34 |
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35 |
501 | 36 int |
37 ngx_blocking(ngx_socket_t s) | |
59
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38 { |
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39 int nb; |
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40 |
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41 nb = 0; |
59
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42 |
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43 return ioctl(s, FIONBIO, &nb); |
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44 } |
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45 |
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46 #endif |
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47 |
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48 |
455 | 49 #if (NGX_FREEBSD) |
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50 |
501 | 51 int |
52 ngx_tcp_nopush(ngx_socket_t s) | |
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53 { |
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54 int tcp_nopush; |
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55 |
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56 tcp_nopush = 1; |
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57 |
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58 return setsockopt(s, IPPROTO_TCP, TCP_NOPUSH, |
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59 (const void *) &tcp_nopush, sizeof(int)); |
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60 } |
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61 |
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62 |
501 | 63 int |
64 ngx_tcp_push(ngx_socket_t s) | |
101
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65 { |
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66 int tcp_nopush; |
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67 |
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68 tcp_nopush = 0; |
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69 |
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70 return setsockopt(s, IPPROTO_TCP, TCP_NOPUSH, |
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71 (const void *) &tcp_nopush, sizeof(int)); |
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72 } |
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73 |
455 | 74 #elif (NGX_LINUX) |
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75 |
563 | 76 |
501 | 77 int |
78 ngx_tcp_nopush(ngx_socket_t s) | |
195
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79 { |
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80 int cork; |
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81 |
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82 cork = 1; |
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83 |
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84 return setsockopt(s, IPPROTO_TCP, TCP_CORK, |
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85 (const void *) &cork, sizeof(int)); |
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86 } |
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87 |
563 | 88 |
501 | 89 int |
90 ngx_tcp_push(ngx_socket_t s) | |
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91 { |
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92 int cork; |
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93 |
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94 cork = 0; |
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95 |
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96 return setsockopt(s, IPPROTO_TCP, TCP_CORK, |
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97 (const void *) &cork, sizeof(int)); |
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98 } |
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99 |
103
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100 #else |
101
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101 |
501 | 102 int |
103 ngx_tcp_nopush(ngx_socket_t s) | |
101
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104 { |
501 | 105 return 0; |
101
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106 } |
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107 |
563 | 108 |
501 | 109 int |
110 ngx_tcp_push(ngx_socket_t s) | |
101
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111 { |
501 | 112 return 0; |
101
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113 } |
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114 |
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115 #endif |