Mercurial > hg > nginx

annotate src/os/unix/ngx_linux_sendfile_chain.c @ 198:34995c5ec6c4

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
nginx-0.0.1-2003-11-27-22:01:37 import
author Igor Sysoev <igor@sysoev.ru>
date Thu, 27 Nov 2003 19:01:37 +0000
parents 11fbd0fc041d
children a65b630b3a66
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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1
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
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2 #include <ngx_config.h>
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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parents:
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3 #include <ngx_core.h>
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents: 97
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4 #include <ngx_event.h>
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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5
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6
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
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7 ngx_chain_t *ngx_linux_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in)
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
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8 {
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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9 int rc;
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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10 char *prev;
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34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
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11 off_t fprev;
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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12 size_t size, fsize, sent;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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13 ngx_int_t use_cork, eintr;
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
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14 struct iovec *iov;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
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15 ngx_err_t err;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
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16 ngx_hunk_t *file;
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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17 ngx_array_t header;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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18 ngx_event_t *wev;
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11fbd0fc041d nginx-0.0.1-2003-11-26-18:42:18 import
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19 ngx_chain_t *cl, *tail;
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34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
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20 #if (HAVE_SENDFILE64)
34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
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21 off_t offset;
34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
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22 #else
34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
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23 int32_t offset;
34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
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24 #endif
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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25
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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26 wev = c->write;
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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27
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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28 if (!wev->ready) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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29 return in;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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30 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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31
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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32 do {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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33 file = NULL;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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34 fsize = 0;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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35 eintr = 0;
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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36
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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37 ngx_init_array(header, c->pool, 10, sizeof(struct iovec),
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents: 97
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38 NGX_CHAIN_ERROR);
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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39
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
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40 prev = NULL;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
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41 iov = NULL;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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42
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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43 /* create the iovec and coalesce the neighbouring hunks */
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents: 97
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44
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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45 for (cl = in; cl; cl = cl->next) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents: 97
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46 if (ngx_hunk_special(cl->hunk)) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents: 97
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47 continue;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents: 97
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48 }
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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49
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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50 if (!ngx_hunk_in_memory_only(cl->hunk)) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
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51 break;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
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52 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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53
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
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54 if (prev == cl->hunk->pos) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents: 97
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55 iov->iov_len += cl->hunk->last - cl->hunk->pos;
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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56
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
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57 } else {
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
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58 ngx_test_null(iov, ngx_push_array(&header), NGX_CHAIN_ERROR);
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents: 97
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59 iov->iov_base = cl->hunk->pos;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents: 97
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60 iov->iov_len = cl->hunk->last - cl->hunk->pos;
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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61 }
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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62
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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63 prev = cl->hunk->last;
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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64 }
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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65
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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66 /* set TCP_CORK if there is a header before a file */
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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67
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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68 if (!c->tcp_nopush
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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69 && header.nelts != 0
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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70 && cl
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents: 97
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71 && cl->hunk->type & NGX_HUNK_FILE)
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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72 {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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73 c->tcp_nopush = 1;
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74
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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75 ngx_log_debug(c->log, "CORK");
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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76
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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77 if (ngx_tcp_nopush(c->fd) == NGX_ERROR) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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78 ngx_log_error(NGX_LOG_CRIT, c->log, ngx_errno,
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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79 ngx_tcp_nopush_n " failed");
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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80 return NGX_CHAIN_ERROR;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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81 }
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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82 }
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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83
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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84 if (header.nelts == 0 && cl && cl->hunk->type & NGX_HUNK_FILE) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents: 97
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85
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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86 /* get the file hunk */
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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87
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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88 file = cl->hunk;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents: 97
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89 fsize = (size_t) (file->file_last - file->file_pos);
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34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
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parents: 196
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90 fprev = file->file_last;
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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91 cl = cl->next;
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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92
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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93 /* coalesce the neighbouring file hunks */
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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94
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents: 97
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95 while (cl && (cl->hunk->type & NGX_HUNK_FILE)) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents: 97
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96 if (file->file->fd != cl->hunk->file->fd
198
34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
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parents: 196
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97 || fprev != cl->hunk->file_pos)
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents: 97
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98 {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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99 break;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents: 97
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100 }
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
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101
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents: 97
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102 fsize += (size_t) (cl->hunk->file_last - cl->hunk->file_pos);
198
34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
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parents: 196
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103 fprev = cl->hunk->file_last;
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents: 97
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104 cl = cl->next;
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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parents:
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105 }
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
106 }
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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107
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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108 /*
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
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109 * the tail is the rest of the chain that exceeded
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
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110 * a single sendfile() capability
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents: 97
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111 */
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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112
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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113 tail = cl;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents: 97
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114
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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115 if (fsize) {
198
34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
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parents: 196
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116 #if (HAVE_SENDFILE64)
196
11fbd0fc041d nginx-0.0.1-2003-11-26-18:42:18 import
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parents: 195
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117 offset = file->file_pos;
198
34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
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parents: 196
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118 #else
34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
Igor Sysoev <igor@sysoev.ru>
parents: 196
diff changeset
119 offset = (int32_t) file->file_pos;
34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
Igor Sysoev <igor@sysoev.ru>
parents: 196
diff changeset
120 #endif
196
11fbd0fc041d nginx-0.0.1-2003-11-26-18:42:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
121 rc = sendfile(c->fd, file->file->fd, &offset, fsize);
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
122
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
123 if (rc == -1) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
124 err = ngx_errno;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
125 if (err == NGX_EAGAIN) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
126 ngx_log_error(NGX_LOG_INFO, c->log, err,
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
127 "sendfile() EAGAIN");
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
128
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
129 } else if (err == NGX_EINTR) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
130 eintr = 1;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
131 ngx_log_error(NGX_LOG_INFO, c->log, err,
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
132 "sendfile() EINTR");
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
133
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
134 } else {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
135 ngx_log_error(NGX_LOG_CRIT, c->log, err,
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
136 "sendfile() failed");
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
137 return NGX_CHAIN_ERROR;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
138 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
139 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
140
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
141 sent = rc > 0 ? rc : 0;
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
142
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
143 #if (NGX_DEBUG_WRITE_CHAIN)
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
144 ngx_log_debug(c->log, "sendfile: %d, @" OFF_T_FMT " %d:%d" _
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
145 rc _ file->file_pos _ sent _ fsize);
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
146 #endif
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
147 } else {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
148 rc = writev(c->fd, header.elts, header.nelts);
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
149
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
150 if (rc == -1) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
151 err = ngx_errno;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
152 if (err == NGX_EAGAIN) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
153 ngx_log_error(NGX_LOG_INFO, c->log, err, "writev() EAGAIN");
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
154
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
155 } else if (err == NGX_EINTR) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
156 eintr = 1;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
157 ngx_log_error(NGX_LOG_INFO, c->log, err, "writev() EINTR");
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
158
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
159 } else {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
160 ngx_log_error(NGX_LOG_CRIT, c->log, err, "writev() failed");
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
161 return NGX_CHAIN_ERROR;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
162 }
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
163 }
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
164
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
165 sent = rc > 0 ? rc : 0;
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
166
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
167 #if (NGX_DEBUG_WRITE_CHAIN)
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
168 ngx_log_debug(c->log, "writev: %d" _ sent);
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
169 #endif
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
170 }
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
171
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
172 c->sent += sent;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
173
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
174 for (cl = in; cl; cl = cl->next) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
175
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
176 if (ngx_hunk_special(cl->hunk)) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
177 continue;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
178 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
179
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
180 if (sent == 0) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
181 break;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
182 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
183
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
184 size = ngx_hunk_size(cl->hunk);
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
185
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
186 if (sent >= size) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
187 sent -= size;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
188
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
189 if (cl->hunk->type & NGX_HUNK_IN_MEMORY) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
190 cl->hunk->pos = cl->hunk->last;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
191 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
192
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
193 if (cl->hunk->type & NGX_HUNK_FILE) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
194 cl->hunk->file_pos = cl->hunk->file_last;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
195 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
196
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
197 continue;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
198 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
199
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
200 if (cl->hunk->type & NGX_HUNK_IN_MEMORY) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
201 cl->hunk->pos += sent;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
202 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
203
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
204 if (cl->hunk->type & NGX_HUNK_FILE) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
205 cl->hunk->file_pos += sent;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
206 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
207
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
208 break;
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
209 }
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
210
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
211 in = cl;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
212
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
213 /* "tail == in" means that a single sendfile() is complete */
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
214
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
215 } while ((tail && tail == in) || eintr);
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
216
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
217 if (in) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
218 wev->ready = 0;
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
219 }
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
220
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
221 return in;
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
222 }