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https://github.com/nginx/nginx.git
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86 lines
1.3 KiB
C
86 lines
1.3 KiB
C
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <ngx_types.h>
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#include <ngx_log.h>
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#include <ngx_connection.h>
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#include <ngx_event.h>
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#include <ngx_event_timer.h>
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#if (HAVE_KQUEUE)
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#include <ngx_kqueue_module.h>
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#endif
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int ngx_aio_init(int max_connections, ngx_log_t *log)
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{
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#if (HAVE_KQUEUE)
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int rc;
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rc = ngx_kqueue_init(max_connections, log);
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ngx_event_flags = NGX_HAVE_AIO_EVENT;
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ngx_write_chain_proc = ngx_aio_write_chain;
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return rc;
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#endif
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}
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#if 0
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/* 1 */
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int ngx_posix_aio_process_events(ngx_log_t *log)
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{
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listen via SIGIO;
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aio_* via SIGxxx;
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sigsuspend()/sigwaitinfo()/sigtimedwait();
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}
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/* 2 */
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int ngx_posix_aio_process_events(ngx_log_t *log)
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{
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unmask signal
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listen via SIGIO;
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/* BUG: SIGIO can be delivered before aio_*() */
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aio_suspend()/aiowait()/aio_waitcomplete() with timeout
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mask signal
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if (ngx_socket_errno == NGX_EINTR)
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look listen
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select()/accept() nb listen sockets
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else
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aio
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}
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/* 3 */
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int ngx_posix_aio_process_events(ngx_log_t *log)
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{
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unmask signal
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/* BUG: AIO signal can be delivered before select() */
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select(listen);
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mask signal
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if (ngx_socket_errno == NGX_EINTR)
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look ready array
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}
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void aio_sig_handler(int signo, siginfo_t *siginfo, void *context)
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{
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push siginfo->si_value.sival_ptr
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}
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#endif
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