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6436
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 * Copyright (C) Nginx, Inc.
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5 */
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6
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7
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8 #include <ngx_config.h>
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9 #include <ngx_core.h>
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10 #include <ngx_event.h>
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11
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12
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13 ssize_t
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14 ngx_udp_unix_send(ngx_connection_t *c, u_char *buf, size_t size)
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15 {
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16 ssize_t n;
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17 ngx_err_t err;
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18 ngx_event_t *wev;
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19
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20 wev = c->write;
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21
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22 for ( ;; ) {
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23 n = sendto(c->fd, buf, size, 0, c->sockaddr, c->socklen);
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24
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25 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0,
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26 "sendto: fd:%d %z of %uz to \"%V\"",
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27 c->fd, n, size, &c->addr_text);
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28
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29 if (n >= 0) {
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30 if ((size_t) n != size) {
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31 wev->error = 1;
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32 (void) ngx_connection_error(c, 0, "sendto() incomplete");
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33 return NGX_ERROR;
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34 }
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35
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36 c->sent += n;
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37
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38 return n;
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39 }
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40
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41 err = ngx_socket_errno;
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42
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43 if (err == NGX_EAGAIN) {
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44 wev->ready = 0;
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45 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, NGX_EAGAIN,
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46 "sendto() not ready");
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47 return NGX_AGAIN;
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48 }
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49
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50 if (err != NGX_EINTR) {
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51 wev->error = 1;
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52 (void) ngx_connection_error(c, err, "sendto() failed");
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53 return NGX_ERROR;
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54 }
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55 }
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56 }
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