Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_socket.c @ 5860:c9787372f16d
Limit conn: use complex value in limit_conn_zone (ticket #121).
One intentional side effect of this change is that key is allowed only
in the first position. Previously, it was possible to specify the key
variable at any position, but that was never documented, and is contrary
to nginx configuration practice for positional parameters.
author | Valentin Bartenev <vbart@nginx.com> |
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date | Wed, 24 Sep 2014 21:55:19 +0400 |
parents | d620f497c50f |
children |
rev | line source |
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441
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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. |
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21 */ |
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22 |
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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 { |
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29 int nb; |
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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; |
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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 |
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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) | |
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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 |