Mercurial > hg > nginx

annotate src/os/unix/ngx_aio_write.c @ 298:4a3f18406832

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
nginx-0.0.3-2004-03-30-10:27:36 import
author Igor Sysoev <igor@sysoev.ru>
date Tue, 30 Mar 2004 06:27:36 +0000
parents 70e1c7d2b83d
children da8c5707af39
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
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1
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
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2 #include <ngx_config.h>
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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3 #include <ngx_core.h>
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6dfda4cf5200 nginx-0.0.1-2003-06-11-19:28:34 import
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4 #include <ngx_event.h>
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738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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5 #include <ngx_aio.h>
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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6
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
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7 #if (HAVE_KQUEUE)
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
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8 #include <ngx_kqueue_module.h>
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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9 #endif
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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10
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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11
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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12 /*
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84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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13 * the ready data requires 3 syscalls:
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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14 * aio_write(), aio_error(), aio_return()
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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15 * the non-ready data requires 4 (kqueue) or 5 syscalls:
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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16 * aio_write(), aio_error(), notifiction, aio_error(), aio_return()
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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17 * timeout, aio_cancel(), aio_error()
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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18 */
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19
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4a3f18406832 nginx-0.0.3-2004-03-30-10:27:36 import
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20 ssize_t ngx_aio_write(ngx_connection_t *c, u_char *buf, size_t size)
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21 {
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22 int n;
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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23 ngx_event_t *wev;
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24
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84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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25 wev = c->write;
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26
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27 if (!wev->ready) {
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84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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28 return NGX_AGAIN;
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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29 }
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30
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31 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, wev->log, 0,
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import
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32 "aio: wev->complete: %d", wev->complete);
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33
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34 if (!wev->complete) {
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84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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35 ngx_memzero(&wev->aiocb, sizeof(struct aiocb));
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36
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37 wev->aiocb.aio_fildes = c->fd;
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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38 wev->aiocb.aio_buf = buf;
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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39 wev->aiocb.aio_nbytes = size;
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40
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41 #if (HAVE_KQUEUE)
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
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42 wev->aiocb.aio_sigevent.sigev_notify_kqueue = ngx_kqueue;
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
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43 wev->aiocb.aio_sigevent.sigev_notify = SIGEV_KEVENT;
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
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44 wev->aiocb.aio_sigevent.sigev_value.sigval_ptr = wev;
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6dfda4cf5200 nginx-0.0.1-2003-06-11-19:28:34 import
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45 #endif
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46
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84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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47 if (aio_write(&wev->aiocb) == -1) {
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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parents: 144
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48 ngx_log_error(NGX_LOG_CRIT, wev->log, ngx_errno,
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738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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49 "aio_write() failed");
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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50 return NGX_ERROR;
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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51 }
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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52
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53 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, wev->log, 0, "aio_write: OK");
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54
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55 wev->active = 1;
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56 wev->ready = 0;
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57 }
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58
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59 wev->complete = 0;
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60
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61 n = aio_error(&wev->aiocb);
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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62 if (n == -1) {
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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63 ngx_log_error(NGX_LOG_CRIT, wev->log, ngx_errno, "aio_error() failed");
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64 wev->error = 1;
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65 return NGX_ERROR;
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66 }
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67
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68 if (n != 0) {
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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69 if (n == NGX_EINPROGRESS) {
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70 if (wev->ready) {
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84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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71 ngx_log_error(NGX_LOG_ALERT, wev->log, n,
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72 "aio_write() still in progress");
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73 wev->ready = 0;
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74 }
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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75 return NGX_AGAIN;
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76 }
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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77
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78 ngx_log_error(NGX_LOG_CRIT, wev->log, n, "aio_write() failed");
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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79 wev->error = 1;
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80 wev->ready = 0;
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
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81
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
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82 #if 1
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
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83 n = aio_return(&wev->aiocb);
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
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84 if (n == -1) {
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
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85 ngx_log_error(NGX_LOG_ALERT, wev->log, ngx_errno,
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
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86 "aio_return() failed");
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
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87 }
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
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88
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
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89 ngx_log_error(NGX_LOG_CRIT, wev->log, n, "aio_return() %d", n);
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
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90 #endif
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
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91
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92 return NGX_ERROR;
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93 }
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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94
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84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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95 n = aio_return(&wev->aiocb);
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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96 if (n == -1) {
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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97 ngx_log_error(NGX_LOG_ALERT, wev->log, ngx_errno,
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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98 "aio_return() failed");
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99
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84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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100 wev->error = 1;
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389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
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101 wev->ready = 0;
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102 return NGX_ERROR;
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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103 }
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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104
164
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105
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70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import
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106 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, wev->log, 0, "aio_write: %d", n);
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738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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107
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389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
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108 wev->active = 0;
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
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109 wev->ready = 1;
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110
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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111 return n;
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738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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112 }