0
|
1
|
|
2 /*
|
|
3 * Copyright (C) Igor Sysoev
|
|
4 */
|
|
5
|
|
6
|
|
7 #include <ngx_config.h>
|
|
8 #include <ngx_core.h>
|
|
9 #include <ngx_event.h>
|
|
10
|
|
11
|
|
12 #define NGX_SENDFILEVECS 16
|
|
13
|
|
14
|
|
15 ngx_chain_t *ngx_solaris_sendfilev_chain(ngx_connection_t *c, ngx_chain_t *in,
|
|
16 off_t limit)
|
|
17 {
|
|
18 int fd;
|
|
19 u_char *prev;
|
|
20 off_t fprev, sprev, send, aligned;
|
|
21 ssize_t size, sent, n;
|
|
22 ngx_int_t eintr, complete;
|
|
23 ngx_err_t err;
|
|
24 sendfilevec_t *sfv, sfvs[NGX_SENDFILEVECS];
|
|
25 ngx_array_t vec;
|
|
26 ngx_event_t *wev;
|
|
27 ngx_chain_t *cl, *tail;
|
|
28
|
|
29 wev = c->write;
|
|
30
|
|
31 if (!wev->ready) {
|
|
32 return in;
|
|
33 }
|
|
34
|
|
35 send = 0;
|
|
36 complete = 0;
|
|
37
|
|
38 vec.elts = sfvs;
|
|
39 vec.size = sizeof(sendfilevec_t);
|
|
40 vec.nalloc = NGX_SENDFILEVECS;
|
|
41 vec.pool = c->pool;
|
|
42
|
|
43 for ( ;; ) {
|
|
44 fd = SFV_FD_SELF;
|
|
45 prev = NULL;
|
|
46 fprev = 0;
|
|
47 sfv = NULL;
|
|
48 eintr = 0;
|
|
49 sent = 0;
|
|
50 sprev = send;
|
|
51
|
|
52 vec.nelts = 0;
|
|
53
|
|
54 /* create the sendfilevec and coalesce the neighbouring bufs */
|
|
55
|
|
56 for (cl = in; cl && vec.nelts < IOV_MAX && send < limit; cl = cl->next)
|
|
57 {
|
|
58 if (ngx_buf_special(cl->buf)) {
|
|
59 continue;
|
|
60 }
|
|
61
|
|
62 if (ngx_buf_in_memory_only(cl->buf)) {
|
|
63 fd = SFV_FD_SELF;
|
|
64
|
|
65 size = cl->buf->last - cl->buf->pos;
|
|
66
|
|
67 if (send + size > limit) {
|
|
68 size = limit - send;
|
|
69 }
|
|
70
|
|
71 if (prev == cl->buf->pos) {
|
|
72 sfv->sfv_len += size;
|
|
73
|
|
74 } else {
|
|
75 if (!(sfv = ngx_array_push(&vec))) {
|
|
76 return NGX_CHAIN_ERROR;
|
|
77 }
|
|
78
|
|
79 sfv->sfv_fd = SFV_FD_SELF;
|
|
80 sfv->sfv_flag = 0;
|
|
81 sfv->sfv_off = (off_t) (uintptr_t) cl->buf->pos;
|
|
82 sfv->sfv_len = size;
|
|
83 }
|
|
84
|
|
85 prev = cl->buf->pos + size;
|
|
86 send += size;
|
|
87
|
|
88 } else {
|
|
89 prev = NULL;
|
|
90
|
|
91 size = (size_t) (cl->buf->file_last - cl->buf->file_pos);
|
|
92
|
|
93 if (send + size > limit) {
|
|
94 size = limit - send;
|
|
95
|
|
96 aligned = (cl->buf->file_pos + size + ngx_pagesize - 1)
|
|
97 & ~(ngx_pagesize - 1);
|
|
98
|
|
99 if (aligned <= cl->buf->file_last) {
|
|
100 size = aligned - cl->buf->file_pos;
|
|
101 }
|
|
102 }
|
|
103
|
|
104 if (fd == cl->buf->file->fd && fprev == cl->buf->file_pos) {
|
|
105 sfv->sfv_len += size;
|
|
106
|
|
107 } else {
|
|
108 if (!(sfv = ngx_array_push(&vec))) {
|
|
109 return NGX_CHAIN_ERROR;
|
|
110 }
|
|
111
|
|
112 fd = cl->buf->file->fd;
|
|
113 sfv->sfv_fd = fd;
|
|
114 sfv->sfv_flag = 0;
|
|
115 sfv->sfv_off = cl->buf->file_pos;
|
|
116 sfv->sfv_len = size;
|
|
117 }
|
|
118
|
|
119 fprev = cl->buf->file_pos + size;
|
|
120 send += size;
|
|
121 }
|
|
122 }
|
|
123
|
|
124 n = sendfilev(c->fd, vec.elts, vec.nelts, &sent);
|
|
125
|
|
126 if (n == -1) {
|
|
127 err = ngx_errno;
|
|
128
|
|
129 if (err == NGX_EAGAIN || err == NGX_EINTR) {
|
|
130 if (err == NGX_EINTR) {
|
|
131 eintr = 1;
|
|
132 }
|
|
133
|
|
134 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, err,
|
|
135 "sendfilev() sent only " SIZE_T_FMT " bytes",
|
|
136 sent);
|
|
137
|
|
138 } else {
|
|
139 wev->error = 1;
|
|
140 ngx_connection_error(c, err, "sendfilev() failed");
|
|
141 return NGX_CHAIN_ERROR;
|
|
142 }
|
|
143 }
|
|
144
|
|
145 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
146 "sendfilev: %d " SIZE_T_FMT, n, sent);
|
|
147
|
|
148 if (send - sprev == sent) {
|
|
149 complete = 1;
|
|
150 }
|
|
151
|
|
152 c->sent += sent;
|
|
153
|
|
154 for (cl = in; cl; cl = cl->next) {
|
|
155
|
|
156 if (ngx_buf_special(cl->buf)) {
|
|
157 continue;
|
|
158 }
|
|
159
|
|
160 if (sent == 0) {
|
|
161 break;
|
|
162 }
|
|
163
|
|
164 size = ngx_buf_size(cl->buf);
|
|
165
|
|
166 if (sent >= size) {
|
|
167 sent -= size;
|
|
168
|
|
169 if (ngx_buf_in_memory(cl->buf)) {
|
|
170 cl->buf->pos = cl->buf->last;
|
|
171 }
|
|
172
|
|
173 if (cl->buf->in_file) {
|
|
174 cl->buf->file_pos = cl->buf->file_last;
|
|
175 }
|
|
176
|
|
177 continue;
|
|
178 }
|
|
179
|
|
180 if (ngx_buf_in_memory(cl->buf)) {
|
|
181 cl->buf->pos += sent;
|
|
182 }
|
|
183
|
|
184 if (cl->buf->in_file) {
|
|
185 cl->buf->file_pos += sent;
|
|
186 }
|
|
187
|
|
188 break;
|
|
189 }
|
|
190
|
|
191 if (eintr) {
|
|
192 continue;
|
|
193 }
|
|
194
|
|
195 if (!complete) {
|
|
196 wev->ready = 0;
|
|
197 return cl;
|
|
198 }
|
|
199
|
|
200 if (send >= limit || cl == NULL) {
|
|
201 return cl;
|
|
202 }
|
|
203
|
|
204 in = cl;
|
|
205 }
|
|
206 }
|