Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_aio_write.c @ 2340:22d2b6609853
*) descrease geo configuration memory usage
*) geo delete
*) geo ranges
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 25 Nov 2008 15:59:06 +0000 |
parents | 4d9ea73a627a |
children | a1d54c705f38 |
rev | line source |
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441
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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5 |
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6 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_event.h> |
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10 #include <ngx_aio.h> |
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11 |
469 | 12 #if (NGX_HAVE_KQUEUE) |
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13 #include <ngx_kqueue_module.h> |
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14 #endif |
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15 |
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16 |
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17 /* |
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18 * the ready data requires 3 syscalls: |
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19 * aio_write(), aio_error(), aio_return() |
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20 * the non-ready data requires 4 (kqueue) or 5 syscalls: |
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21 * aio_write(), aio_error(), notifiction, aio_error(), aio_return() |
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22 * timeout, aio_cancel(), aio_error() |
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23 */ |
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24 |
577 | 25 ssize_t |
26 ngx_aio_write(ngx_connection_t *c, u_char *buf, size_t size) | |
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27 { |
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28 int n; |
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29 ngx_event_t *wev; |
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30 |
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31 wev = c->write; |
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32 |
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33 if (!wev->ready) { |
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34 return NGX_AGAIN; |
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35 } |
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36 |
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37 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, wev->log, 0, |
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38 "aio: wev->complete: %d", wev->complete); |
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39 |
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40 if (!wev->complete) { |
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41 ngx_memzero(&wev->aiocb, sizeof(struct aiocb)); |
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42 |
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43 wev->aiocb.aio_fildes = c->fd; |
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44 wev->aiocb.aio_buf = buf; |
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45 wev->aiocb.aio_nbytes = size; |
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46 |
469 | 47 #if (NGX_HAVE_KQUEUE) |
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48 wev->aiocb.aio_sigevent.sigev_notify_kqueue = ngx_kqueue; |
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49 wev->aiocb.aio_sigevent.sigev_notify = SIGEV_KEVENT; |
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50 wev->aiocb.aio_sigevent.sigev_value.sigval_ptr = wev; |
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51 #endif |
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52 |
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53 if (aio_write(&wev->aiocb) == -1) { |
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54 ngx_log_error(NGX_LOG_CRIT, wev->log, ngx_errno, |
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55 "aio_write() failed"); |
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56 return NGX_ERROR; |
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57 } |
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58 |
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59 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, wev->log, 0, "aio_write: OK"); |
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60 |
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61 wev->active = 1; |
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62 wev->ready = 0; |
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63 } |
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64 |
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65 wev->complete = 0; |
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66 |
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67 n = aio_error(&wev->aiocb); |
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68 if (n == -1) { |
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69 ngx_log_error(NGX_LOG_CRIT, wev->log, ngx_errno, "aio_error() failed"); |
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70 wev->error = 1; |
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71 return NGX_ERROR; |
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72 } |
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73 |
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74 if (n != 0) { |
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75 if (n == NGX_EINPROGRESS) { |
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76 if (wev->ready) { |
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77 ngx_log_error(NGX_LOG_ALERT, wev->log, n, |
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78 "aio_write() still in progress"); |
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79 wev->ready = 0; |
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80 } |
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81 return NGX_AGAIN; |
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82 } |
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83 |
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84 ngx_log_error(NGX_LOG_CRIT, wev->log, n, "aio_write() failed"); |
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85 wev->error = 1; |
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86 wev->ready = 0; |
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87 |
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88 #if 1 |
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89 n = aio_return(&wev->aiocb); |
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90 if (n == -1) { |
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91 ngx_log_error(NGX_LOG_ALERT, wev->log, ngx_errno, |
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92 "aio_return() failed"); |
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93 } |
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94 |
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95 ngx_log_error(NGX_LOG_CRIT, wev->log, n, "aio_return() %d", n); |
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96 #endif |
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97 |
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98 return NGX_ERROR; |
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99 } |
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100 |
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101 n = aio_return(&wev->aiocb); |
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102 if (n == -1) { |
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103 ngx_log_error(NGX_LOG_ALERT, wev->log, ngx_errno, |
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104 "aio_return() failed"); |
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105 |
164
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nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
106 wev->error = 1; |
166
389d7ee9fa60
nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
107 wev->ready = 0; |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
108 return NGX_ERROR; |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
109 } |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
110 |
164
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
111 |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
166
diff
changeset
|
112 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, wev->log, 0, "aio_write: %d", n); |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
113 |
166
389d7ee9fa60
nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
114 wev->active = 0; |
389d7ee9fa60
nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
115 wev->ready = 1; |
164
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
116 |
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
117 return n; |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
118 } |