annotate src/os/unix/ngx_send.c @ 58:b55cbf18157e NGINX_0_1_29

nginx 0.1.29 *) Feature: the ngx_http_ssi_module supports "include virtual" command. *) Feature: the ngx_http_ssi_module supports the condition command like 'if expr="$NAME"' and "else" and "endif" commands. Only one nested level is supported. *) Feature: the ngx_http_ssi_module supports the DATE_LOCAL and DATE_GMT variables and "config timefmt" command. *) Feature: the "ssi_ignore_recycled_buffers" directive. *) Bugfix: the "echo" command did not show the default value for the empty QUERY_STRING variable. *) Change: the ngx_http_proxy_module was rewritten. *) Feature: the "proxy_redirect", "proxy_pass_request_headers", "proxy_pass_request_body", and "proxy_method" directives. *) Feature: the "proxy_set_header" directive. The "proxy_x_var" was canceled and must be replaced with the proxy_set_header directive. *) Change: the "proxy_preserve_host" is canceled and must be replaced with the "proxy_set_header Host $host" and the "proxy_redirect off" directives, the "proxy_set_header Host $host:$proxy_port" directive and the appropriate proxy_redirect directives. *) Change: the "proxy_set_x_real_ip" is canceled and must be replaced with the "proxy_set_header X-Real-IP $remote_addr" directive. *) Change: the "proxy_add_x_forwarded_for" is canceled and must be replaced with the "proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for" directive. *) Change: the "proxy_set_x_url" is canceled and must be replaced with the "proxy_set_header X-URL http://$host:$server_port$request_uri" directive. *) Feature: the "fastcgi_param" directive. *) Change: the "fastcgi_root", "fastcgi_set_var" and "fastcgi_params" directive are canceled and must be replaced with the fastcgi_param directives. *) Feature: the "index" directive can use the variables. *) Feature: the "index" directive can be used at http and server levels. *) Change: the last index only in the "index" directive can be absolute. *) Feature: the "rewrite" directive can use the variables. *) Feature: the "internal" directive. *) Feature: the CONTENT_LENGTH, CONTENT_TYPE, REMOTE_PORT, SERVER_ADDR, SERVER_PORT, SERVER_PROTOCOL, DOCUMENT_ROOT, SERVER_NAME, REQUEST_METHOD, REQUEST_URI, and REMOTE_USER variables. *) Change: nginx now passes the invalid lines in a client request headers or a backend response header. *) Bugfix: if the backend did not transfer response for a long time and the "send_timeout" was less than "proxy_read_timeout", then nginx returned the 408 response. *) Bugfix: the segmentation fault was occurred if the backend sent an invalid line in response header; bug appeared in 0.1.26. *) Bugfix: the segmentation fault may occurred in FastCGI fault tolerance configuration. *) Bugfix: the "expires" directive did not remove the previous "Expires" and "Cache-Control" headers. *) Bugfix: nginx did not take into account trailing dot in "Host" header line. *) Bugfix: the ngx_http_auth_module did not work under Linux. *) Bugfix: the rewrite directive worked incorrectly, if the arguments were in a request. *) Bugfix: nginx could not be built on MacOS X.
author Igor Sysoev <http://sysoev.ru>
date Thu, 12 May 2005 00:00:00 +0400
parents 6f8b0dc0f8dd
children 962c43960644
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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12 ssize_t ngx_unix_send(ngx_connection_t *c, u_char *buf, size_t size)
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13 {
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14 ssize_t n;
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15 ngx_err_t err;
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16 ngx_event_t *wev;
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18 wev = c->write;
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20 #if (NGX_HAVE_KQUEUE)
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22 if ((ngx_event_flags & NGX_USE_KQUEUE_EVENT) && wev->pending_eof) {
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23 ngx_log_error(NGX_LOG_INFO, c->log, wev->kq_errno,
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24 "kevent() reported about an closed connection");
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25
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26 wev->error = 1;
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27 return NGX_ERROR;
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28 }
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29
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30 #endif
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31
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32 for ( ;; ) {
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33 n = send(c->fd, buf, size, 0);
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35 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
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36 "send: fd:%d %d of %d", c->fd, n, size);
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37
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38 if (n > 0) {
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39 if (n < (ssize_t) size) {
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40 wev->ready = 0;
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41 }
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42
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43 return n;
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44 }
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45
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46 err = ngx_socket_errno;
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47
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48 if (n == 0) {
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49 ngx_log_error(NGX_LOG_ALERT, c->log, err, "send() returned zero");
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50 wev->ready = 0;
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51 return n;
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52 }
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53
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54 if (err == NGX_EAGAIN || err == NGX_EINTR) {
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55 wev->ready = 0;
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56
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57 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err,
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58 "send() not ready");
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59
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60 if (err == NGX_EAGAIN) {
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61 return NGX_AGAIN;
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62 }
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63
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64 } else {
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65 wev->error = 1;
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66 ngx_connection_error(c, err, "send() failed");
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67 return NGX_ERROR;
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68 }
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69 }
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70 }