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annotate src/os/unix/ngx_socket.c @ 195:8dee38ea9117

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nginx-0.0.1-2003-11-25-23:44:56 import
author Igor Sysoev <igor@sysoev.ru>
date Tue, 25 Nov 2003 20:44:56 +0000
parents 6dfda4cf5200
children b6793bc5034b
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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) set blocking mode with one syscall only while
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8 fcntl(F_SETFL, ~O_NONBLOCK) need to know previous state
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9 using fcntl(F_GETFL).
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11 ioctl() and fcntl() are syscalls on FreeBSD, Solaris 7/8 and Linux
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12 */
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15 #if (HAVE_FIONBIO)
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17 int ngx_nonblocking(ngx_socket_t s)
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18 {
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19 unsigned long nb = 1;
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21 return ioctl(s, FIONBIO, &nb);
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22 }
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25 int ngx_blocking(ngx_socket_t s)
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26 {
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27 unsigned long nb = 0;
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29 return ioctl(s, FIONBIO, &nb);
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30 }
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32 #endif
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35 #ifdef __FreeBSD__
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37 int ngx_tcp_nopush(ngx_socket_t s)
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38 {
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39 int tcp_nopush;
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41 tcp_nopush = 1;
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43 return setsockopt(s, IPPROTO_TCP, TCP_NOPUSH,
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44 (const void *) &tcp_nopush, sizeof(int));
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45 }
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48 int ngx_tcp_push(ngx_socket_t s)
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49 {
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50 int tcp_nopush;
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51
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52 tcp_nopush = 0;
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53
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54 return setsockopt(s, IPPROTO_TCP, TCP_NOPUSH,
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55 (const void *) &tcp_nopush, sizeof(int));
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56 }
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58 #elif __linux__
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60 int ngx_tcp_nopush(ngx_socket_t s)
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61 {
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62 int cork;
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63
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64 cork = 1;
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65
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66 return setsockopt(s, IPPROTO_TCP, TCP_CORK,
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67 (const void *) &cork, sizeof(int));
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68 }
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70 int ngx_tcp_push(ngx_socket_t s)
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71 {
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72 int cork;
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73
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74 cork = 0;
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75
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76 return setsockopt(s, IPPROTO_TCP, TCP_CORK,
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77 (const void *) &cork, sizeof(int));
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78 }
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79
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80 #else
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81
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82 int ngx_tcp_nopush(ngx_socket_t s)
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83 {
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84 return NGX_OK;
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85 }
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86
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87 int ngx_tcp_push(ngx_socket_t s)
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88 {
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89 return NGX_OK;
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90 }
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91
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92 #endif