Mercurial > hg > nginx

annotate src/os/unix/ngx_freebsd_sendfile_chain.c @ 144:ef8c87afcfc5

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
nginx-0.0.1-2003-10-12-20:49:16 import
author Igor Sysoev <igor@sysoev.ru>
date Sun, 12 Oct 2003 16:49:16 +0000
parents 5526213be452
children fb48bf4fea1c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
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1
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
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2 #include <ngx_config.h>
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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parents: 94
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3 #include <ngx_core.h>
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cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
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4 #include <ngx_event.h>
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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parents: 94
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5 #include <ngx_freebsd_init.h>
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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6
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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7
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
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8 /*
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cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
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9 * sendfile() often sends 4K pages over ethernet in 3 packets: 2x1460 and 1176
cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
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parents: 103
diff changeset
10 * or in 6 packets: 5x1460 and 892. Besides although sendfile() allows
cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
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parents: 103
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11 * to pass the header and the trailer it never sends the header or the trailer
cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
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parents: 103
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12 * with the part of the file in one packet. So we use TCP_NOPUSH (similar
cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
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parents: 103
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13 * to Linux's TCP_CORK) to postpone the sending - it not only sends the header
cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
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14 * and the first part of the file in one packet but also sends 4K pages
cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents: 103
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15 * in the full packets.
cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
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16 *
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5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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17 * Until FreeBSD 4.5 the turning TCP_NOPUSH off does not flush
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
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18 * the pending data that less than MSS so the data is sent with 5 second delay.
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
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19 * We do not use TCP_NOPUSH on FreeBSD prior to 4.5 although it can be used
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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20 * for non-keepalive HTTP connections.
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cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
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21 */
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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23
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8220378432a8 nginx-0.0.1-2003-05-22-19:23:47 import
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24 ngx_chain_t *ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in)
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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25 {
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5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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26 int rc, eintr;
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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27 char *prev;
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6dfda4cf5200 nginx-0.0.1-2003-06-11-19:28:34 import
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28 ssize_t hsize, size;
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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29 off_t sent;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
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30 struct iovec *iov;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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31 struct sf_hdtr hdtr;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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32 ngx_err_t err;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
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33 ngx_array_t header, trailer;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
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34 ngx_hunk_t *file;
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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35 ngx_chain_t *ce, *tail;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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36
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ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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37 if (!c->write->ready) {
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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38 return in;
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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39 }
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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40
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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41 do {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
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42 ce = in;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
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43 file = NULL;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
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44 hsize = 0;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
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45 eintr = 0;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
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46
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
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47 ngx_init_array(header, c->pool, 10, sizeof(struct iovec),
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
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48 NGX_CHAIN_ERROR);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
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49 ngx_init_array(trailer, c->pool, 10, sizeof(struct iovec),
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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parents: 94
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50 NGX_CHAIN_ERROR);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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parents: 94
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51
143
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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52 /* create the iovec and coalesce the neighbouring chain entries */
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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parents: 142
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53
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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54 prev = NULL;
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
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55 iov = NULL;
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cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
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56
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5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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57 for (ce = in; ce; ce = ce->next) {
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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58 if (ngx_hunk_special(ce->hunk)) {
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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59 continue;
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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60 }
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61
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5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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62 if (!ngx_hunk_in_memory_only(ce->hunk)) {
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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63 break;
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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64 }
142
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65
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5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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66 if (prev == ce->hunk->pos) {
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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67 iov->iov_len += ce->hunk->last - ce->hunk->pos;
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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68 prev = ce->hunk->last;
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69
143
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70 } else {
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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71 ngx_test_null(iov, ngx_push_array(&header), NGX_CHAIN_ERROR);
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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72 iov->iov_base = ce->hunk->pos;
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73 iov->iov_len = ce->hunk->last - ce->hunk->pos;
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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parents: 142
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74 prev = ce->hunk->last;
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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75 }
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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76
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5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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77 hsize += ce->hunk->last - ce->hunk->pos;
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78 }
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79
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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80 /* TODO: coalesce the neighbouring file hunks */
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81
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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82 if (ce && (ce->hunk->type & NGX_HUNK_FILE)) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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83 file = ce->hunk;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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84 ce = ce->next;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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85 }
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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86
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87 /* create the iovec and coalesce the neighbouring chain entries */
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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88
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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89 prev = NULL;
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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90 iov = NULL;
142
cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
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91
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5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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92 for ( /* void */; ce; ce = ce->next) {
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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parents: 142
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93 if (ngx_hunk_special(ce->hunk)) {
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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parents: 142
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94 continue;
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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95 }
142
cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
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96
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5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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97 if (!ngx_hunk_in_memory_only(ce->hunk)) {
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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parents: 142
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98 break;
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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99 }
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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100
143
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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101 if (prev == ce->hunk->pos) {
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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parents: 142
diff changeset
102 iov->iov_len += ce->hunk->last - ce->hunk->pos;
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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parents: 142
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103 prev = ce->hunk->last;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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104
143
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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105 } else {
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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106 ngx_test_null(iov, ngx_push_array(&trailer), NGX_CHAIN_ERROR);
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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parents: 142
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107 iov->iov_base = ce->hunk->pos;
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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parents: 142
diff changeset
108 iov->iov_len = ce->hunk->last - ce->hunk->pos;
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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parents: 142
diff changeset
109 prev = ce->hunk->last;
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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110 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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parents: 94
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111 }
67
5a7d1aaa1618 nginx-0.0.1-2003-03-11-23:38:13 import
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parents: 63
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112
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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113 tail = ce;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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114
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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115 if (file) {
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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116
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5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
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117 if (ngx_freebsd_use_tcp_nopush && !c->tcp_nopush) {
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 96
diff changeset
118 c->tcp_nopush = 1;
143
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
119
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
120 ngx_log_debug(c->log, "NOPUSH");
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
121
101
2e069b6e6920 nginx-0.0.1-2003-06-04-21:28:33 import
Igor Sysoev <igor@sysoev.ru>
parents: 99
diff changeset
122 if (ngx_tcp_nopush(c->fd) == NGX_ERROR) {
2e069b6e6920 nginx-0.0.1-2003-06-04-21:28:33 import
Igor Sysoev <igor@sysoev.ru>
parents: 99
diff changeset
123 ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno,
2e069b6e6920 nginx-0.0.1-2003-06-04-21:28:33 import
Igor Sysoev <igor@sysoev.ru>
parents: 99
diff changeset
124 ngx_tcp_nopush_n " failed");
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
125 return NGX_CHAIN_ERROR;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
126 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
127 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
128
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
129 hdtr.headers = (struct iovec *) header.elts;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
130 hdtr.hdr_cnt = header.nelts;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
131 hdtr.trailers = (struct iovec *) trailer.elts;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
132 hdtr.trl_cnt = trailer.nelts;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
133
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
134 if (ngx_freebsd_sendfile_nbytes_bug == 0) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
135 hsize = 0;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
136 }
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
137
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
138 rc = sendfile(file->file->fd, c->fd, file->file_pos,
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
139 (size_t) (file->file_last - file->file_pos) + hsize,
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
140 &hdtr, &sent, 0);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
141
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
142 if (rc == -1) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
143 err = ngx_errno;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
144
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
145 if (err == NGX_EINTR) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
146 eintr = 1;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
147 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
148
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
149 if (err == NGX_EAGAIN || err == NGX_EINTR) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
150 ngx_log_error(NGX_LOG_INFO, c->log, err,
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
151 "sendfile() sent only %qd bytes", sent);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
152
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
153 } else {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
154 ngx_log_error(NGX_LOG_CRIT, c->log, err,
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
155 "sendfile() failed");
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
156 return NGX_CHAIN_ERROR;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
157 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
158 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
159
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
160 #if (NGX_DEBUG_WRITE_CHAIN)
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
161 ngx_log_debug(c->log, "sendfile: %d, @%qd %qd:%d" _
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
162 rc _ file->file_pos _ sent _
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
163 (size_t) (file->file_last - file->file_pos) + hsize);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
164 #endif
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
165
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
166 } else {
143
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
167 rc = writev(c->fd, (struct iovec *) header.elts, header.nelts);
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
168
143
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
169 if (rc == -1) {
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
170 err = ngx_errno;
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
171 if (err == NGX_EAGAIN) {
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
172 ngx_log_error(NGX_LOG_INFO, c->log, err, "writev() EAGAIN");
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
173
143
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
174 } else if (err == NGX_EINTR) {
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
175 eintr = 1;
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
176 ngx_log_error(NGX_LOG_INFO, c->log, err, "writev() EINTR");
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
177
143
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
178 } else {
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
179 ngx_log_error(NGX_LOG_CRIT, c->log, err, "writev() failed");
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
180 return NGX_CHAIN_ERROR;
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
181 }
143
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
182 }
89
29bf798b583f nginx-0.0.1-2003-05-15-19:42:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 88
diff changeset
183
143
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
184 sent = rc > 0 ? rc : 0;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
185
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
186 #if (NGX_DEBUG_WRITE_CHAIN)
143
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
187 ngx_log_debug(c->log, "writev: %qd" _ sent);
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
188 #endif
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
189 }
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
190
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
191 c->sent += sent;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
192
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
193 for (ce = in; ce && sent > 0; ce = ce->next) {
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
194
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
195 if (ce->hunk->type & NGX_HUNK_IN_MEMORY) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
196 size = ce->hunk->last - ce->hunk->pos;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
197 } else {
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
198 size = ce->hunk->file_last - ce->hunk->file_pos;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
199 }
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
200
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
201 if (sent >= size) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
202 sent -= size;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
203
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
204 if (ce->hunk->type & NGX_HUNK_IN_MEMORY) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
205 ce->hunk->pos = ce->hunk->last;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
206 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
207
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
208 if (ce->hunk->type & NGX_HUNK_FILE) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
209 ce->hunk->file_pos = ce->hunk->file_last;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
210 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
211
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
212 continue;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
213 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
214
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
215 if (ce->hunk->type & NGX_HUNK_IN_MEMORY) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
216 ce->hunk->pos += sent;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
217 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
218
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
219 if (ce->hunk->type & NGX_HUNK_FILE) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
220 ce->hunk->file_pos += sent;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
221 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
222
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
223 break;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
224 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
225
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
226 ngx_destroy_array(&trailer);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
227 ngx_destroy_array(&header);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
228
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
229 in = ce;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
230
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
231 } while ((tail && tail == ce) || eintr);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
232
142
cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents: 103
diff changeset
233 if (ce) {
cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents: 103
diff changeset
234 c->write->ready = 0;
cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents: 103
diff changeset
235 }
cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents: 103
diff changeset
236
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
237 return ce;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
238 }