Mercurial > hg > nginx

annotate src/os/unix/ngx_aio_write_chain.c @ 93:738fe44c70d5

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
nginx-0.0.1-2003-05-21-17:28:21 import
author Igor Sysoev <igor@sysoev.ru>
date Wed, 21 May 2003 13:28:21 +0000
parents 36d2c25cc9bb
children b48066122884
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
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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>
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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3 #include <ngx_core.h>
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738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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4 #include <ngx_aio.h>
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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5
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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6
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
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7 ngx_chain_t *ngx_aio_write_chain(ngx_connection_t *c, ngx_chain_t *in)
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
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8 {
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
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9 int rc;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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10 char *buf, *prev;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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11 off_t sent;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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12 size_t size;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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13 ngx_err_t err;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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14 ngx_chain_t *ce;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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15
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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16 sent = 0;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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17 ce = in;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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18
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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19 while (ce) {
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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20
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738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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21 ngx_log_debug(c->log, "aio_write ce: %x" _ ce->hunk->pos);
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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22
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738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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23 buf = prev = ce->hunk->pos;
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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24 size = 0;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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25
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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26 /* coalesce the neighbouring chain entries */
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738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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27 while (ce && prev == ce->hunk->pos) {
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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28 size += ce->hunk->last - ce->hunk->pos;
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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29 prev = ce->hunk->last;
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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30 ce = ce->next;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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31 }
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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32
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738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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33 rc = ngx_aio_write(c, buf, size);
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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34
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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35 ngx_log_debug(c->log, "aio_write rc: %d" _ rc);
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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36
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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37 if (rc > 0) {
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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38 sent += rc;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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39 c->sent += rc;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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40
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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41 } else if (rc == NGX_ERROR) {
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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42 return NGX_CHAIN_ERROR;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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43
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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44 } else if (rc == NGX_AGAIN) {
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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45 break;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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46 }
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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47 }
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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48
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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49 #if (NGX_DEBUG_WRITE_CHAIN)
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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50 ngx_log_debug(c->log, "aio_write sent: " OFF_FMT _ c->sent);
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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51 #endif
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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52
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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53 for (ce = in; ce; ce = ce->next) {
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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54
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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55 #if (NGX_DEBUG_WRITE_CHAIN)
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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56 ngx_log_debug(c->log, "write chain: %x %qx %qd" _
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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57 ce->hunk->type _
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58 ce->hunk->file_pos _
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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59 ce->hunk->file_last - ce->hunk->file_pos);
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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60 #endif
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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61
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62 if (sent >= ce->hunk->file_last - ce->hunk->file_pos) {
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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63 sent -= ce->hunk->file_last - ce->hunk->file_pos;
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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64 ce->hunk->file_pos = ce->hunk->file_last;
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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65
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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66 #if (NGX_DEBUG_WRITE_CHAIN)
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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67 ngx_log_debug(c->log, "write chain done: %qx %qd" _
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68 ce->hunk->file_pos _ sent);
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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69 #endif
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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70 continue;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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71 }
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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72
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73 ce->hunk->file_pos += sent;
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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74
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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75 #if (NGX_DEBUG_WRITE_CHAIN)
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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76 ngx_log_debug(c->log, "write chain rest: %qx %qd" _
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738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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77 ce->hunk->file_pos _
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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78 ce->hunk->file_last - ce->hunk->file_pos);
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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79 #endif
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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80
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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81 break;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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82 }
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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83
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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84 return ce;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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85 }