Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_aio_write.c @ 245:e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Thu, 29 Jan 2004 21:45:01 +0000 |
parents | 389d7ee9fa60 |
children | 70e1c7d2b83d |
rev | line source |
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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 #include <ngx_event.h> |
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5 #include <ngx_aio.h> |
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6 |
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7 #if (HAVE_KQUEUE) |
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8 #include <ngx_kqueue_module.h> |
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9 #endif |
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10 |
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11 |
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12 /* |
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13 * the ready data requires 3 syscalls: |
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14 * aio_write(), aio_error(), aio_return() |
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15 * the non-ready data requires 4 (kqueue) or 5 syscalls: |
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16 * aio_write(), aio_error(), notifiction, aio_error(), aio_return() |
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17 * timeout, aio_cancel(), aio_error() |
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18 */ |
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19 |
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20 ssize_t ngx_aio_write(ngx_connection_t *c, char *buf, size_t size) |
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21 { |
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22 int n; |
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23 ngx_event_t *wev; |
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24 |
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25 wev = c->write; |
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27 if (!wev->ready) { |
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28 return NGX_AGAIN; |
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29 } |
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30 |
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31 ngx_log_debug(wev->log, "aio: wev->complete: %d" _ wev->complete); |
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32 |
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33 if (!wev->complete) { |
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34 ngx_memzero(&wev->aiocb, sizeof(struct aiocb)); |
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35 |
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36 wev->aiocb.aio_fildes = c->fd; |
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37 wev->aiocb.aio_buf = buf; |
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38 wev->aiocb.aio_nbytes = size; |
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39 |
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40 #if (HAVE_KQUEUE) |
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41 wev->aiocb.aio_sigevent.sigev_notify_kqueue = ngx_kqueue; |
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42 wev->aiocb.aio_sigevent.sigev_notify = SIGEV_KEVENT; |
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43 wev->aiocb.aio_sigevent.sigev_value.sigval_ptr = wev; |
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44 #endif |
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45 |
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46 if (aio_write(&wev->aiocb) == -1) { |
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47 ngx_log_error(NGX_LOG_CRIT, wev->log, ngx_errno, |
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48 "aio_write() failed"); |
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49 return NGX_ERROR; |
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50 } |
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51 |
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52 ngx_log_debug(wev->log, "aio_write: OK"); |
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53 |
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54 wev->active = 1; |
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55 wev->ready = 0; |
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56 } |
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57 |
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58 wev->complete = 0; |
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59 |
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60 n = aio_error(&wev->aiocb); |
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61 if (n == -1) { |
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62 ngx_log_error(NGX_LOG_CRIT, wev->log, ngx_errno, "aio_error() failed"); |
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63 wev->error = 1; |
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64 return NGX_ERROR; |
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65 } |
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66 |
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67 if (n != 0) { |
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68 if (n == NGX_EINPROGRESS) { |
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69 if (wev->ready) { |
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70 ngx_log_error(NGX_LOG_ALERT, wev->log, n, |
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71 "aio_write() still in progress"); |
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72 wev->ready = 0; |
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73 } |
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74 return NGX_AGAIN; |
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75 } |
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76 |
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77 ngx_log_error(NGX_LOG_CRIT, wev->log, n, "aio_write() failed"); |
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78 wev->error = 1; |
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79 wev->ready = 0; |
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80 |
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81 #if 1 |
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82 n = aio_return(&wev->aiocb); |
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83 if (n == -1) { |
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84 ngx_log_error(NGX_LOG_ALERT, wev->log, ngx_errno, |
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85 "aio_return() failed"); |
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86 } |
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87 |
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88 ngx_log_error(NGX_LOG_CRIT, wev->log, n, "aio_return() %d", n); |
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89 #endif |
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90 |
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91 return NGX_ERROR; |
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92 } |
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93 |
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94 n = aio_return(&wev->aiocb); |
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95 if (n == -1) { |
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96 ngx_log_error(NGX_LOG_ALERT, wev->log, ngx_errno, |
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97 "aio_return() failed"); |
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98 |
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99 wev->error = 1; |
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100 wev->ready = 0; |
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101 return NGX_ERROR; |
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102 } |
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Igor Sysoev <igor@sysoev.ru>
parents:
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103 |
164
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
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104 |
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
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105 ngx_log_debug(wev->log, "aio_write: %d" _ n); |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
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106 |
166
389d7ee9fa60
nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
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164
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107 wev->active = 0; |
389d7ee9fa60
nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
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108 wev->ready = 1; |
164
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nginx-0.0.1-2003-10-29-11:30:44 import
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parents:
144
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109 |
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
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110 return n; |
93
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nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
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111 } |