Mercurial > hg > nginx-ranges
view src/os/unix/ngx_aio_read_chain.c @ 566:5c576ea5dbd9 NGINX_0_8_29
nginx 0.8.29
*) Change: now the "009" status code is written to an access log for
proxied HTTP/0.9 responses.
*) Feature: the "addition_types", "charset_types", "gzip_types",
"ssi_types", "sub_filter_types", and "xslt_types" directives support
an "*" parameter.
*) Feature: GCC 4.1+ built-in atomic operations usage.
Thanks to W-Mark Kubacki.
*) Feature: the --with-libatomic[=DIR] option in the configure.
Thanks to W-Mark Kubacki.
*) Bugfix: listen unix domain socket had limited access rights.
*) Bugfix: cached HTTP/0.9 responses were handled incorrectly.
*) Bugfix: regular expression named captures given by "?P<...>" did not
work in a "server_name" directive.
Thanks to Maxim Dounin.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Mon, 30 Nov 2009 00:00:00 +0300 |
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; }