Mercurial > hg > nginx-vendor-1-0
view src/os/unix/ngx_aio_read_chain.c @ 236:c982febb7588 NGINX_0_4_3
nginx 0.4.3
*) Change: now the 499 error could not be redirected using an
"error_page" directive.
*) Feature: the Solaris 10 event ports support.
*) Feature: the ngx_http_browser_module.
*) Bugfix: a segmentation fault may occur while redirecting the 400
error to the proxied server using an "proxy_pass" directive.
*) Bugfix: a segmentation fault occurred if an unix domain socket was
used in an "proxy_pass" directive; bug appeared in 0.3.47.
*) Bugfix: SSI did work with memcached and nonbuffered responses.
*) Workaround: of the Sun Studio PAUSE hardware capability bug.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Tue, 26 Sep 2006 00:00:00 +0400 |
parents | df17fbafec8f |
children | 86dad910eeb6 |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_event.h> #include <ngx_aio.h> ssize_t ngx_aio_read_chain(ngx_connection_t *c, ngx_chain_t *cl) { int n; u_char *buf, *prev; size_t size; ssize_t total; if (c->read->pending_eof) { c->read->ready = 0; return 0; } total = 0; while (cl) { /* we can post the single aio operation only */ if (!c->read->ready) { return total ? total : NGX_AGAIN; } buf = cl->buf->last; prev = cl->buf->last; size = 0; /* coalesce the neighbouring bufs */ while (cl && prev == cl->buf->last) { size += cl->buf->end - cl->buf->last; prev = cl->buf->end; cl = cl->next; } n = ngx_aio_read(c, buf, size); ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "aio_read: %d", n); if (n == NGX_AGAIN) { return total ? total : NGX_AGAIN; } if (n == NGX_ERROR) { return NGX_ERROR; } if (n == 0) { c->read->pending_eof = 1; if (total) { c->read->eof = 0; c->read->ready = 1; } return total; } if (n > 0) { total += n; } ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "aio_read total: %d", total); } return total ? total : NGX_AGAIN; }