Mercurial > hg > nginx-vendor-0-5
view src/os/unix/ngx_aio_read_chain.c @ 210:14050d2bec9b NGINX_0_3_52
nginx 0.3.52
*) Change: the ngx_http_index_module behavior for the "POST /" requests
is reverted to the 0.3.40 version state: the module now does not
return the 405 error.
*) Bugfix: the worker process may got caught in an endless loop if the
limit rate was used; bug appeared in 0.3.37.
*) Bugfix: ngx_http_charset_module logged "unknown charset" alert, even
if the recoding was not needed; bug appeared in 0.3.50.
*) Bugfix: if a code response of the PUT request was 409, then a
temporary file was not removed.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Mon, 03 Jul 2006 00:00:00 +0400 |
parents | df17fbafec8f |
children |
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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; }