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annotate src/os/unix/ngx_send.c @ 647:95d7da23ea53 release-0.3.45

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nginx-0.3.45-RELEASE import *) Feature: the "ssl_verify_client", "ssl_verify_depth", and "ssl_client_certificate" directives. *) Change: the $request_method variable now returns the main request method. *) Change: the ° symbol codes were changed in koi-win conversion table. *) Feature: the euro and N symbols were added to koi-win conversion table. *) Bugfix: if nginx distributed the requests among several backends and some backend failed, then requests intended for this backend was directed to one live backend only instead of being distributed among the rest.
author Igor Sysoev <igor@sysoev.ru>
date Sat, 06 May 2006 16:28:56 +0000
parents 284cc140593b
children 85523506e427
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da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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2 /*
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42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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0526206251f6 nginx-0.0.10-2004-09-07-19:29:22 import
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
0526206251f6 nginx-0.0.10-2004-09-07-19:29:22 import
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9 #include <ngx_event.h>
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0526206251f6 nginx-0.0.10-2004-09-07-19:29:22 import
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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;
0526206251f6 nginx-0.0.10-2004-09-07-19:29:22 import
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15 ngx_err_t err;
0526206251f6 nginx-0.0.10-2004-09-07-19:29:22 import
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16 ngx_event_t *wev;
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0526206251f6 nginx-0.0.10-2004-09-07-19:29:22 import
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18 wev = c->write;
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2ff194b74f1e nginx-0.1.9-RELEASE import
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20 #if (NGX_HAVE_KQUEUE)
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284cc140593b nginx-0.3.15-RELEASE import
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22 if ((ngx_event_flags & NGX_USE_KQUEUE_EVENT) && wev->pending_eof) {
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c9ad0d9c7d59 nginx-0.1.43-RELEASE import
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23 (void) ngx_connection_error(c, wev->kq_errno,
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24 "kevent() reported about an closed connection");
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25 wev->error = 1;
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26 return NGX_ERROR;
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27 }
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0526206251f6 nginx-0.0.10-2004-09-07-19:29:22 import
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29 #endif
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0526206251f6 nginx-0.0.10-2004-09-07-19:29:22 import
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31 for ( ;; ) {
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32 n = send(c->fd, buf, size, 0);
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0526206251f6 nginx-0.0.10-2004-09-07-19:29:22 import
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34 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
0526206251f6 nginx-0.0.10-2004-09-07-19:29:22 import
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35 "send: fd:%d %d of %d", c->fd, n, size);
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0526206251f6 nginx-0.0.10-2004-09-07-19:29:22 import
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37 if (n > 0) {
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38 if (n < (ssize_t) size) {
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39 wev->ready = 0;
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40 }
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41
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42 return n;
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43 }
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0526206251f6 nginx-0.0.10-2004-09-07-19:29:22 import
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45 err = ngx_socket_errno;
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46
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47 if (n == 0) {
0526206251f6 nginx-0.0.10-2004-09-07-19:29:22 import
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48 ngx_log_error(NGX_LOG_ALERT, c->log, err, "send() returned zero");
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47709bff4468 nginx-0.0.10-2004-09-09-19:40:48 import
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49 wev->ready = 0;
47709bff4468 nginx-0.0.10-2004-09-09-19:40:48 import
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50 return n;
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51 }
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52
0526206251f6 nginx-0.0.10-2004-09-07-19:29:22 import
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53 if (err == NGX_EAGAIN || err == NGX_EINTR) {
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54 wev->ready = 0;
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55
0526206251f6 nginx-0.0.10-2004-09-07-19:29:22 import
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56 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err,
0526206251f6 nginx-0.0.10-2004-09-07-19:29:22 import
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57 "send() not ready");
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58
0526206251f6 nginx-0.0.10-2004-09-07-19:29:22 import
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59 if (err == NGX_EAGAIN) {
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60 return NGX_AGAIN;
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61 }
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62
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63 } else {
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64 wev->error = 1;
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65 (void) ngx_connection_error(c, err, "send() failed");
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66 return NGX_ERROR;
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67 }
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68 }
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69 }