Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_socket.c @ 438:e56ab5ac8c65
nginx-0.0.12-2004-09-24-20:12:19 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 24 Sep 2004 16:12:19 +0000 |
parents | eaf1f651cf86 |
children | da8c5707af39 |
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 u_long nb; |
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23 |
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24 nb = 1; |
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25 |
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26 return ioctl(s, FIONBIO, &nb); |
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27 } |
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30 int ngx_blocking(ngx_socket_t s) |
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31 { |
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32 u_long nb; |
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33 |
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34 nb = 0; |
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35 |
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36 return ioctl(s, FIONBIO, &nb); |
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37 } |
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38 |
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39 #endif |
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40 |
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41 |
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42 #ifdef __FreeBSD__ |
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43 |
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44 int ngx_tcp_nopush(ngx_socket_t s) |
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45 { |
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46 int tcp_nopush; |
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47 |
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48 tcp_nopush = 1; |
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49 |
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50 return setsockopt(s, IPPROTO_TCP, TCP_NOPUSH, |
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51 (const void *) &tcp_nopush, sizeof(int)); |
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52 } |
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53 |
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54 |
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55 int ngx_tcp_push(ngx_socket_t s) |
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56 { |
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57 int tcp_nopush; |
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58 |
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59 tcp_nopush = 0; |
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60 |
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61 return setsockopt(s, IPPROTO_TCP, TCP_NOPUSH, |
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62 (const void *) &tcp_nopush, sizeof(int)); |
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63 } |
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64 |
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65 #elif __linux__ |
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66 |
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67 int ngx_tcp_nopush(ngx_socket_t s) |
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68 { |
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69 int cork; |
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70 |
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71 cork = 1; |
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72 |
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73 return setsockopt(s, IPPROTO_TCP, TCP_CORK, |
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74 (const void *) &cork, sizeof(int)); |
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75 } |
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76 |
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77 int ngx_tcp_push(ngx_socket_t s) |
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78 { |
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79 int cork; |
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80 |
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81 cork = 0; |
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82 |
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83 return setsockopt(s, IPPROTO_TCP, TCP_CORK, |
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84 (const void *) &cork, sizeof(int)); |
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85 } |
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86 |
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87 #else |
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88 |
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89 int ngx_tcp_nopush(ngx_socket_t s) |
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90 { |
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91 return NGX_OK; |
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92 } |
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93 |
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94 int ngx_tcp_push(ngx_socket_t s) |
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95 { |
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96 return NGX_OK; |
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97 } |
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98 |
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99 #endif |