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annotate src/os/unix/ngx_socket.c @ 253:b6793bc5034b

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nginx-0.0.2-2004-02-09-10:46:43 import
author Igor Sysoev <igor@sysoev.ru>
date Mon, 09 Feb 2004 07:46:43 +0000
parents 8dee38ea9117
children 55e496a8ece3
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1
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2 #include <ngx_config.h>
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3 #include <ngx_core.h>
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6 /*
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7 * ioctl(FIONBIO) sets a blocking mode with the single syscall
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8 * while fcntl(F_SETFL, ~O_NONBLOCK) needs to learn before
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9 * a previous state using fcntl(F_GETFL).
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10 *
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11 * ioctl() and fcntl() are syscalls on at least FreeBSD 2.x, Linux 2.2
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12 * and Solaris 7
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13 */
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16 #if (HAVE_FIONBIO)
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18 int ngx_nonblocking(ngx_socket_t s)
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19 {
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20 unsigned long nb = 1;
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22 return ioctl(s, FIONBIO, &nb);
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23 }
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26 int ngx_blocking(ngx_socket_t s)
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27 {
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28 unsigned long nb = 0;
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29
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30 return ioctl(s, FIONBIO, &nb);
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31 }
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33 #endif
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36 #ifdef __FreeBSD__
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38 int ngx_tcp_nopush(ngx_socket_t s)
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39 {
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40 int tcp_nopush;
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42 tcp_nopush = 1;
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44 return setsockopt(s, IPPROTO_TCP, TCP_NOPUSH,
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45 (const void *) &tcp_nopush, sizeof(int));
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46 }
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49 int ngx_tcp_push(ngx_socket_t s)
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50 {
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51 int tcp_nopush;
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52
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53 tcp_nopush = 0;
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55 return setsockopt(s, IPPROTO_TCP, TCP_NOPUSH,
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56 (const void *) &tcp_nopush, sizeof(int));
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57 }
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58
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59 #elif __linux__
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61 int ngx_tcp_nopush(ngx_socket_t s)
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62 {
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63 int cork;
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64
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65 cork = 1;
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67 return setsockopt(s, IPPROTO_TCP, TCP_CORK,
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68 (const void *) &cork, sizeof(int));
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69 }
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71 int ngx_tcp_push(ngx_socket_t s)
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72 {
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73 int cork;
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74
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75 cork = 0;
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76
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77 return setsockopt(s, IPPROTO_TCP, TCP_CORK,
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78 (const void *) &cork, sizeof(int));
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79 }
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80
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81 #else
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83 int ngx_tcp_nopush(ngx_socket_t s)
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84 {
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85 return NGX_OK;
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86 }
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87
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88 int ngx_tcp_push(ngx_socket_t s)
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89 {
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90 return NGX_OK;
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91 }
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92
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93 #endif