Mercurial > hg > nginx-quic
comparison src/os/unix/ngx_solaris_sendfilev_chain.c @ 197:0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Thu, 27 Nov 2003 07:45:22 +0000 |
parents | |
children | 34995c5ec6c4 |
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196:11fbd0fc041d | 197:0b81c7a0b133 |
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1 | |
2 #include <ngx_config.h> | |
3 #include <ngx_core.h> | |
4 #include <ngx_event.h> | |
5 | |
6 | |
7 ngx_chain_t *ngx_solaris_sendfilev_chain(ngx_connection_t *c, ngx_chain_t *in) | |
8 { | |
9 int fd; | |
10 char *prev; | |
11 off_t fprev; | |
12 size_t sent; | |
13 ssize_t n; | |
14 ngx_int_t eintr; | |
15 sendfilevec_t *sfv; | |
16 ngx_array_t vec; | |
17 ngx_event_t *wev; | |
18 ngx_chain_t *cl; | |
19 | |
20 wev = c->write; | |
21 | |
22 if (!wev->ready) { | |
23 return in; | |
24 } | |
25 | |
26 do { | |
27 fd = SFV_FD_SELF; | |
28 prev = NULL; | |
29 sfv = NULL; | |
30 eintr = 0; | |
31 sent = 0; | |
32 | |
33 /* create the sendfilevec and coalesce the neighbouring hunks */ | |
34 | |
35 for (cl = in; cl; cl = cl->next) { | |
36 if (ngx_hunk_special(cl->hunk)) { | |
37 continue; | |
38 } | |
39 | |
40 if (ngx_hunk_in_memory_only(cl->hunk)) { | |
41 fd = SFV_FD_SELF; | |
42 | |
43 if (prev == cl->hunk->pos) { | |
44 sfv->sfv_len += cl->hunk->last - cl->hunk->pos; | |
45 | |
46 } else { | |
47 ngx_test_null(sfv, ngx_push_array(&vec), NGX_CHAIN_ERROR); | |
48 sfv->sfv_fd = SFV_FD_SELF; | |
49 sfv->sfv_flag = 0; | |
50 sfv->sfv_off = cl->hunk->pos; | |
51 sfv->sfv_len = cl->hunk->last - cl->hunk->pos; | |
52 } | |
53 | |
54 prev = cl->hunk->last; | |
55 | |
56 } else { | |
57 prev = NULL; | |
58 | |
59 if (fd == cl->hunk->file->fd && fprev == cl->hunk->file_pos) { | |
60 sfv->sfv_len += cl->hunk->file_last - cl->hunk->file_pos; | |
61 | |
62 } else { | |
63 ngx_test_null(sfv, ngx_push_array(&vec), NGX_CHAIN_ERROR); | |
64 fd = cl->hunk->file->fd; | |
65 sfv->sfv_fd = fd; | |
66 sfv->sfv_flag = 0; | |
67 sfv->sfv_off = cl->hunk->file_pos; | |
68 sfv->sfv_len = cl->hunk->file_last - cl->hunk->file_pos; | |
69 } | |
70 | |
71 fprev = cl->hunk->file_last; | |
72 } | |
73 } | |
74 | |
75 n = sendfile(c->fd, vec->elts, vec->nelts, &sent); | |
76 | |
77 if (n == -1) { | |
78 err = ngx_errno; | |
79 | |
80 if (err == NGX_EINTR) { | |
81 eintr = 1; | |
82 } | |
83 | |
84 if (err == NGX_EAGAIN || err == NGX_EINTR) { | |
85 ngx_log_error(NGX_LOG_INFO, c->log, err, | |
86 "sendfilev() sent only " SIZE_T_FMT " bytes", | |
87 sent); | |
88 } else { | |
89 wev->error = 1; | |
90 ngx_log_error(NGX_LOG_CRIT, c->log, err, "sendfilev() failed"); | |
91 return NGX_CHAIN_ERROR; | |
92 } | |
93 } | |
94 | |
95 #if (NGX_DEBUG_WRITE_CHAIN) | |
96 ngx_log_debug(c->log, "sendfilev: %d " SIZE_T_FMT ", n _ sent); | |
97 #endif | |
98 | |
99 c->sent += sent; | |
100 | |
101 for (cl = in; cl; cl = cl->next) { | |
102 | |
103 if (ngx_hunk_special(cl->hunk)) { | |
104 continue; | |
105 } | |
106 | |
107 if (sent == 0) { | |
108 break; | |
109 } | |
110 | |
111 size = ngx_hunk_size(cl->hunk); | |
112 | |
113 if (sent >= size) { | |
114 sent -= size; | |
115 | |
116 if (cl->hunk->type & NGX_HUNK_IN_MEMORY) { | |
117 cl->hunk->pos = cl->hunk->last; | |
118 } | |
119 | |
120 if (cl->hunk->type & NGX_HUNK_FILE) { | |
121 cl->hunk->file_pos = cl->hunk->file_last; | |
122 } | |
123 | |
124 continue; | |
125 } | |
126 | |
127 if (cl->hunk->type & NGX_HUNK_IN_MEMORY) { | |
128 cl->hunk->pos += sent; | |
129 } | |
130 | |
131 if (cl->hunk->type & NGX_HUNK_FILE) { | |
132 cl->hunk->file_pos += sent; | |
133 } | |
134 | |
135 break; | |
136 } | |
137 | |
138 in = cl; | |
139 | |
140 } while (eintr); | |
141 | |
142 if (in) { | |
143 wev->ready = 0; | |
144 } | |
145 | |
146 return in; | |
147 } |