Mercurial > hg > nginx-vendor-1-0
view src/os/unix/ngx_aio_read.c @ 36:a39d1b793287 NGINX_0_1_18
nginx 0.1.18
*) Workaround: the default values of the devpoll_events and the
devpoll_changes directives changed from 512 to 32 to be compatible
with Solaris 10.
*) Bugfix: the proxy_set_x_var and fastcgi_set_var directives were not
inherited.
*) Bugfix: in the redirect rewrite directive the arguments were
concatenated with URI by the "&" rather than the "?".
*) Bugfix: the lines without trailing ";" in the file being included by
the ngx_http_geo_module were silently ignored.
*) Feature: the ngx_http_stub_status_module.
*) Bugfix: the unknown log format in the access_log directive caused
the segmentation fault.
*) Feature: the new "document_root" parameter of the fastcgi_params
directive.
*) Feature: the fastcgi_redirect_errors directive.
*) Feature: the new "break" modifier of the "rewrite" directive allows
to stop the rewrite/location cycle and sets the current
configuration to the request.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Wed, 09 Feb 2005 00:00:00 +0300 |
parents | 6f8b0dc0f8dd |
children | df17fbafec8f |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_event.h> #include <ngx_aio.h> #if (NGX_HAVE_KQUEUE) #include <ngx_kqueue_module.h> #endif /* * the ready data requires 3 syscalls: * aio_write(), aio_error(), aio_return() * the non-ready data requires 4 (kqueue) or 5 syscalls: * aio_write(), aio_error(), notifiction, aio_error(), aio_return() * timeout, aio_cancel(), aio_error() */ ssize_t ngx_aio_read(ngx_connection_t *c, u_char *buf, size_t size) { int n; ngx_event_t *rev; rev = c->read; if (!rev->ready) { ngx_log_error(NGX_LOG_ALERT, c->log, 0, "second aio post"); return NGX_AGAIN; } ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "rev->complete: %d", rev->complete); ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "aio size: %d", size); if (!rev->complete) { ngx_memzero(&rev->aiocb, sizeof(struct aiocb)); rev->aiocb.aio_fildes = c->fd; rev->aiocb.aio_buf = buf; rev->aiocb.aio_nbytes = size; #if (NGX_HAVE_KQUEUE) rev->aiocb.aio_sigevent.sigev_notify_kqueue = ngx_kqueue; rev->aiocb.aio_sigevent.sigev_notify = SIGEV_KEVENT; rev->aiocb.aio_sigevent.sigev_value.sigval_ptr = rev; #endif if (aio_read(&rev->aiocb) == -1) { ngx_log_error(NGX_LOG_CRIT, rev->log, ngx_errno, "aio_read() failed"); rev->error = 1; return NGX_ERROR; } ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "aio_read: #%d OK", c->fd); rev->active = 1; rev->ready = 0; } rev->complete = 0; n = aio_error(&rev->aiocb); if (n == -1) { ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, "aio_error() failed"); rev->error = 1; return NGX_ERROR; } if (n != 0) { if (n == NGX_EINPROGRESS) { if (rev->ready) { ngx_log_error(NGX_LOG_ALERT, c->log, n, "aio_read() still in progress"); rev->ready = 0; } return NGX_AGAIN; } ngx_log_error(NGX_LOG_CRIT, c->log, n, "aio_read() failed"); rev->error = 1; rev->ready = 0; return NGX_ERROR; } n = aio_return(&rev->aiocb); if (n == -1) { ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, "aio_return() failed"); rev->error = 1; rev->ready = 0; return NGX_ERROR; } ngx_log_debug2(NGX_LOG_DEBUG_EVENT, rev->log, 0, "aio_read: #%d %d", c->fd, n); if (n == 0) { rev->eof = 1; rev->ready = 0; } else { rev->ready = 1; } rev->active = 0; return n; }