mirror of
https://github.com/nginx/nginx.git
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e5035397b0
*) Feature: the listen(2) backlog in the "listen" directive can be
changed using the -HUP signal.
*) Feature: the geo2nginx.pl script was added to contrib.
*) Change: the FastCGI parameters with the empty values now are passed
to a server.
*) Bugfix: the segmentation fault occurred or the worker process may
got caught in an endless loop if the proxied or FastCGI server sent
the "Cache-Control" header line and the "expires" directive was
used; in the proxied mode the the bug had appeared in 0.1.29.
166 lines
3.6 KiB
C
166 lines
3.6 KiB
C
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/*
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* Copyright (C) Igor Sysoev
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*/
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <ngx_event.h>
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#if (NGX_HAVE_KQUEUE)
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ssize_t ngx_unix_recv(ngx_connection_t *c, u_char *buf, size_t size)
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{
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ssize_t n;
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ngx_err_t err;
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ngx_event_t *rev;
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rev = c->read;
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if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
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ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
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"recv: eof:%d, avail:%d, err:%d",
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rev->pending_eof, rev->available, rev->kq_errno);
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if (rev->available == 0) {
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if (rev->pending_eof) {
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rev->ready = 0;
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rev->eof = 1;
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if (rev->kq_errno) {
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rev->error = 1;
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ngx_set_socket_errno(rev->kq_errno);
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return ngx_connection_error(c, rev->kq_errno,
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"kevent() reported about an closed connection");
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}
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return 0;
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} else {
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return NGX_AGAIN;
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}
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}
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}
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do {
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n = recv(c->fd, buf, size, 0);
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ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
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"recv: fd:%d %d of %d", c->fd, n, size);
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if (n >= 0) {
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if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
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rev->available -= n;
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/*
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* rev->available can be negative here because some additional
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* bytes can be received between kevent() and recv()
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*/
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if (rev->available <= 0) {
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if (!rev->pending_eof) {
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rev->ready = 0;
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}
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if (rev->available < 0) {
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rev->available = 0;
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}
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}
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return n;
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}
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if ((size_t) n < size) {
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rev->ready = 0;
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}
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if (n == 0) {
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rev->eof = 1;
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}
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return n;
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}
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err = ngx_socket_errno;
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if (err == NGX_EAGAIN || err == NGX_EINTR) {
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ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err,
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"recv() not ready");
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n = NGX_AGAIN;
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} else {
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n = ngx_connection_error(c, err, "recv() failed");
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break;
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}
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} while (err == NGX_EINTR);
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rev->ready = 0;
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if (n == NGX_ERROR){
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rev->error = 1;
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}
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return n;
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}
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#else /* ! NGX_HAVE_KQUEUE */
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ssize_t ngx_unix_recv(ngx_connection_t *c, u_char *buf, size_t size)
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{
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ssize_t n;
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ngx_err_t err;
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ngx_event_t *rev;
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rev = c->read;
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do {
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n = recv(c->fd, buf, size, 0);
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ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
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"recv: fd:%d %d of %d", c->fd, n, size);
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if (n == 0) {
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rev->ready = 0;
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rev->eof = 1;
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return n;
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} else if (n > 0) {
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if ((size_t) n < size
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&& !(ngx_event_flags & NGX_USE_GREEDY_EVENT))
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{
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rev->ready = 0;
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}
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return n;
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}
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err = ngx_socket_errno;
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if (err == NGX_EAGAIN || err == NGX_EINTR) {
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ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err,
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"recv() not ready");
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n = NGX_AGAIN;
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} else {
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n = ngx_connection_error(c, err, "recv() failed");
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break;
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}
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} while (err == NGX_EINTR);
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rev->ready = 0;
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if (n == NGX_ERROR){
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rev->error = 1;
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}
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return n;
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}
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#endif /* NGX_HAVE_KQUEUE */
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