Mercurial > hg > nginx
annotate src/os/unix/ngx_aio_write.c @ 3378:5d17022a1e88
fix libatomic usage on arm, cris, hppa, m68k, and sparc platforms
author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 07 Dec 2009 15:32:38 +0000 |
parents | a1d54c705f38 |
children | d620f497c50f |
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 |
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11 |
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12 extern int ngx_kqueue; |
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13 |
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14 |
577 | 15 ssize_t |
16 ngx_aio_write(ngx_connection_t *c, u_char *buf, size_t size) | |
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17 { |
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18 int n; |
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19 ngx_event_t *wev; |
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20 |
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21 wev = c->write; |
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22 |
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23 if (!wev->ready) { |
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24 return NGX_AGAIN; |
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25 } |
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26 |
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27 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, wev->log, 0, |
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28 "aio: wev->complete: %d", wev->complete); |
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29 |
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30 if (!wev->complete) { |
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31 ngx_memzero(&wev->aiocb, sizeof(struct aiocb)); |
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32 |
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33 wev->aiocb.aio_fildes = c->fd; |
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34 wev->aiocb.aio_buf = buf; |
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35 wev->aiocb.aio_nbytes = size; |
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36 |
469 | 37 #if (NGX_HAVE_KQUEUE) |
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38 wev->aiocb.aio_sigevent.sigev_notify_kqueue = ngx_kqueue; |
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39 wev->aiocb.aio_sigevent.sigev_notify = SIGEV_KEVENT; |
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40 wev->aiocb.aio_sigevent.sigev_value.sigval_ptr = wev; |
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41 #endif |
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42 |
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43 if (aio_write(&wev->aiocb) == -1) { |
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44 ngx_log_error(NGX_LOG_CRIT, wev->log, ngx_errno, |
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45 "aio_write() failed"); |
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46 return NGX_ERROR; |
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47 } |
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48 |
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49 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, wev->log, 0, "aio_write: OK"); |
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50 |
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51 wev->active = 1; |
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52 wev->ready = 0; |
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53 } |
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54 |
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55 wev->complete = 0; |
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56 |
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57 n = aio_error(&wev->aiocb); |
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58 if (n == -1) { |
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59 ngx_log_error(NGX_LOG_CRIT, wev->log, ngx_errno, "aio_error() failed"); |
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60 wev->error = 1; |
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61 return NGX_ERROR; |
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62 } |
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63 |
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64 if (n != 0) { |
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65 if (n == NGX_EINPROGRESS) { |
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66 if (wev->ready) { |
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67 ngx_log_error(NGX_LOG_ALERT, wev->log, n, |
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68 "aio_write() still in progress"); |
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69 wev->ready = 0; |
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70 } |
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71 return NGX_AGAIN; |
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72 } |
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73 |
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74 ngx_log_error(NGX_LOG_CRIT, wev->log, n, "aio_write() failed"); |
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75 wev->error = 1; |
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76 wev->ready = 0; |
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77 |
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78 #if 1 |
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79 n = aio_return(&wev->aiocb); |
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80 if (n == -1) { |
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81 ngx_log_error(NGX_LOG_ALERT, wev->log, ngx_errno, |
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82 "aio_return() failed"); |
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83 } |
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84 |
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85 ngx_log_error(NGX_LOG_CRIT, wev->log, n, "aio_return() %d", n); |
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86 #endif |
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87 |
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88 return NGX_ERROR; |
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89 } |
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90 |
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91 n = aio_return(&wev->aiocb); |
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92 if (n == -1) { |
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93 ngx_log_error(NGX_LOG_ALERT, wev->log, ngx_errno, |
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94 "aio_return() failed"); |
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95 |
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96 wev->error = 1; |
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97 wev->ready = 0; |
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98 return NGX_ERROR; |
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99 } |
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100 |
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101 |
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102 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, wev->log, 0, "aio_write: %d", n); |
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103 |
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104 wev->active = 0; |
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105 wev->ready = 1; |
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106 |
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107 return n; |
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108 } |