Mercurial > hg > nginx
annotate src/event/modules/ngx_aio_module.c @ 63:36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Wed, 26 Feb 2003 20:21:43 +0000 |
parents | 669801705ab1 |
children | 637625a2acdb |
rev | line source |
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63
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2 #include <ngx_config.h> |
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3 |
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4 #include <ngx_core.h> |
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5 #include <ngx_types.h> |
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6 #include <ngx_log.h> |
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7 #include <ngx_connection.h> |
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8 #include <ngx_event.h> |
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9 #include <ngx_event_timer.h> |
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10 |
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11 #if (HAVE_KQUEUE) |
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12 #include <ngx_kqueue_module.h> |
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13 #endif |
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14 |
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16 int ngx_aio_init(int max_connections, ngx_log_t *log) |
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17 { |
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18 #if (HAVE_KQUEUE) |
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19 |
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20 int rc; |
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21 |
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22 rc = ngx_kqueue_init(max_connections, log); |
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23 |
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24 ngx_event_flags = NGX_HAVE_AIO_EVENT; |
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25 ngx_write_chain_proc = ngx_aio_write_chain; |
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26 |
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27 return rc; |
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28 |
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29 #endif |
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30 } |
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31 |
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32 |
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33 |
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34 |
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35 |
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36 #if 0 |
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37 /* 1 */ |
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38 int ngx_posix_aio_process_events(ngx_log_t *log) |
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39 { |
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40 listen via SIGIO; |
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41 aio_* via SIGxxx; |
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42 |
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43 sigsuspend()/sigwaitinfo()/sigtimedwait(); |
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44 } |
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45 |
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46 /* 2 */ |
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47 int ngx_posix_aio_process_events(ngx_log_t *log) |
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48 { |
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49 unmask signal |
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51 listen via SIGIO; |
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53 /* BUG: SIGIO can be delivered before aio_*() */ |
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54 |
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55 aio_suspend()/aiowait()/aio_waitcomplete() with timeout |
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56 |
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57 mask signal |
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58 |
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59 if (ngx_socket_errno == NGX_EINTR) |
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60 look listen |
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61 select()/accept() nb listen sockets |
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62 else |
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63 aio |
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64 } |
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65 |
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66 /* 3 */ |
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67 int ngx_posix_aio_process_events(ngx_log_t *log) |
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68 { |
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69 unmask signal |
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70 |
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71 /* BUG: AIO signal can be delivered before select() */ |
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72 |
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73 select(listen); |
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74 |
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75 mask signal |
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76 |
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77 if (ngx_socket_errno == NGX_EINTR) |
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78 look ready array |
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79 } |
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80 |
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81 void aio_sig_handler(int signo, siginfo_t *siginfo, void *context) |
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82 { |
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83 push siginfo->si_value.sival_ptr |
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84 } |
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85 #endif |