Mercurial > hg > nginx-mail
view src/os/unix/ngx_aio_read_chain.c @ 566:0161f3197817 NGINX_0_8_15
nginx 0.8.15
*) Security: a segmentation fault might occur in worker process while
specially crafted request handling.
Thanks to Chris Ries.
*) Bugfix: if names .domain.tld, .sub.domain.tld, and .domain-some.tld
were defined, then the name .sub.domain.tld was matched by
.domain.tld.
*) Bugfix: in transparency support in the ngx_http_image_filter_module.
*) Bugfix: in file AIO.
*) Bugfix: in X-Accel-Redirect usage; the bug had appeared in 0.8.11.
*) Bugfix: in embedded perl module; the bug had appeared in 0.8.11.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Mon, 14 Sep 2009 00:00:00 +0400 |
parents | 86dad910eeb6 |
children |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_event.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; }