Mercurial > hg > nginx
annotate src/os/unix/ngx_socket.c @ 346:55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Sun, 06 Jun 2004 19:49:18 +0000 |
parents | b6793bc5034b |
children | eaf1f651cf86 |
rev | line source |
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59
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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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4 |
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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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14 * ioctl() in Linux 2.4 and 2.6 uses BKL, however fcntl(F_SETFL) uses it too. |
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15 */ |
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17 |
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18 #if (HAVE_FIONBIO) |
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19 |
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20 int ngx_nonblocking(ngx_socket_t s) |
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21 { |
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22 unsigned long nb = 1; |
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23 |
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24 return ioctl(s, FIONBIO, &nb); |
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25 } |
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28 int ngx_blocking(ngx_socket_t s) |
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29 { |
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30 unsigned long nb = 0; |
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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 #endif |
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36 |
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37 |
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38 #ifdef __FreeBSD__ |
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39 |
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40 int ngx_tcp_nopush(ngx_socket_t s) |
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41 { |
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42 int tcp_nopush; |
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43 |
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44 tcp_nopush = 1; |
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45 |
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46 return setsockopt(s, IPPROTO_TCP, TCP_NOPUSH, |
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47 (const void *) &tcp_nopush, sizeof(int)); |
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48 } |
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49 |
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50 |
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51 int ngx_tcp_push(ngx_socket_t s) |
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52 { |
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53 int tcp_nopush; |
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54 |
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55 tcp_nopush = 0; |
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56 |
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57 return setsockopt(s, IPPROTO_TCP, TCP_NOPUSH, |
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58 (const void *) &tcp_nopush, sizeof(int)); |
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59 } |
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60 |
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61 #elif __linux__ |
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62 |
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63 int ngx_tcp_nopush(ngx_socket_t s) |
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64 { |
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65 int cork; |
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66 |
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67 cork = 1; |
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68 |
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69 return setsockopt(s, IPPROTO_TCP, TCP_CORK, |
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70 (const void *) &cork, sizeof(int)); |
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71 } |
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72 |
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73 int ngx_tcp_push(ngx_socket_t s) |
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74 { |
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75 int cork; |
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76 |
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77 cork = 0; |
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78 |
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79 return setsockopt(s, IPPROTO_TCP, TCP_CORK, |
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80 (const void *) &cork, sizeof(int)); |
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81 } |
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82 |
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83 #else |
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84 |
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85 int ngx_tcp_nopush(ngx_socket_t s) |
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86 { |
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87 return NGX_OK; |
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88 } |
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89 |
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90 int ngx_tcp_push(ngx_socket_t s) |
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91 { |
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92 return NGX_OK; |
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93 } |
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94 |
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95 #endif |