Mercurial > hg > nginx
annotate src/os/unix/ngx_socket.c @ 9331:dbf76fdd109f default tip
release-1.27.4 tag
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Tue, 03 Sep 2024 13:11:25 +0300 |
parents | d620f497c50f |
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rev | line source |
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1 |
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2 /* |
444
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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6 |
59
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
59
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10 |
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11 |
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12 /* |
707 | 13 * ioctl(FIONBIO) sets a non-blocking mode with the single syscall |
14 * while fcntl(F_SETFL, O_NONBLOCK) needs to learn the current state | |
15 * using fcntl(F_GETFL). | |
253
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16 * |
563 | 17 * ioctl() and fcntl() are syscalls at least in FreeBSD 2.x, Linux 2.2 |
346
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18 * and Solaris 7. |
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19 * |
452 | 20 * ioctl() in Linux 2.4 and 2.6 uses BKL, however, fcntl(F_SETFL) uses it too. |
253
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21 */ |
93
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22 |
101
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23 |
469 | 24 #if (NGX_HAVE_FIONBIO) |
59
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25 |
501 | 26 int |
27 ngx_nonblocking(ngx_socket_t s) | |
59
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28 { |
1117
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29 int nb; |
354
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30 |
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31 nb = 1; |
59
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32 |
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33 return ioctl(s, FIONBIO, &nb); |
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34 } |
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35 |
101
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36 |
501 | 37 int |
38 ngx_blocking(ngx_socket_t s) | |
59
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39 { |
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40 int nb; |
354
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41 |
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42 nb = 0; |
59
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43 |
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44 return ioctl(s, FIONBIO, &nb); |
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45 } |
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46 |
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47 #endif |
101
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48 |
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49 |
455 | 50 #if (NGX_FREEBSD) |
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51 |
501 | 52 int |
53 ngx_tcp_nopush(ngx_socket_t s) | |
101
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54 { |
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55 int tcp_nopush; |
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56 |
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57 tcp_nopush = 1; |
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58 |
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59 return setsockopt(s, IPPROTO_TCP, TCP_NOPUSH, |
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60 (const void *) &tcp_nopush, sizeof(int)); |
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61 } |
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62 |
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63 |
501 | 64 int |
65 ngx_tcp_push(ngx_socket_t s) | |
101
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66 { |
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67 int tcp_nopush; |
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68 |
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69 tcp_nopush = 0; |
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70 |
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71 return setsockopt(s, IPPROTO_TCP, TCP_NOPUSH, |
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72 (const void *) &tcp_nopush, sizeof(int)); |
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73 } |
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74 |
455 | 75 #elif (NGX_LINUX) |
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76 |
563 | 77 |
501 | 78 int |
79 ngx_tcp_nopush(ngx_socket_t s) | |
195
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80 { |
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81 int cork; |
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82 |
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83 cork = 1; |
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84 |
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85 return setsockopt(s, IPPROTO_TCP, TCP_CORK, |
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86 (const void *) &cork, sizeof(int)); |
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87 } |
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88 |
563 | 89 |
501 | 90 int |
91 ngx_tcp_push(ngx_socket_t s) | |
195
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92 { |
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93 int cork; |
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94 |
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95 cork = 0; |
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96 |
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97 return setsockopt(s, IPPROTO_TCP, TCP_CORK, |
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98 (const void *) &cork, sizeof(int)); |
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99 } |
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100 |
103
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101 #else |
101
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102 |
501 | 103 int |
104 ngx_tcp_nopush(ngx_socket_t s) | |
101
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105 { |
501 | 106 return 0; |
101
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107 } |
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108 |
563 | 109 |
501 | 110 int |
111 ngx_tcp_push(ngx_socket_t s) | |
101
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112 { |
501 | 113 return 0; |
101
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114 } |
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115 |
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116 #endif |