Mercurial > hg > nginx-quic
view src/os/unix/ngx_aio_read_chain.c @ 649:1e720b0be7ec release-0.3.46
nginx-0.3.46-RELEASE import
*) Feature: the "proxy_hide_header", "proxy_pass_header",
"fastcgi_hide_header", and "fastcgi_pass_header" directives.
*) Change: the "proxy_pass_x_powered_by", "fastcgi_x_powered_by", and
"proxy_pass_server" directives were canceled.
*) Feature: the "X-Accel-Buffering" response header line is supported
in proxy mode.
*) Bugfix: the reconfiguration bug and memory leaks in the
ngx_http_perl_module.
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Thu, 11 May 2006 14:43:47 +0000 |
parents | 4d9ea73a627a |
children | a1d54c705f38 |
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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; }