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comparison src/os/unix/ngx_writev_chain.c @ 5854:b63e829621ab

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Generalized definitions of the number of preallocated iovec's. No functional changes.
author Valentin Bartenev <vbart@nginx.com>
date Wed, 13 Aug 2014 15:11:45 +0400
parents a6e83ac70af9
children 6bbad2e73245
comparison
equal deleted inserted replaced
5853:a6e83ac70af9 5854:b63e829621ab
6 6
7 7
8 #include <ngx_config.h> 8 #include <ngx_config.h>
9 #include <ngx_core.h> 9 #include <ngx_core.h>
10 #include <ngx_event.h> 10 #include <ngx_event.h>
11
12
13 #if (IOV_MAX > 64)
14 #define NGX_IOVS 64
15 #else
16 #define NGX_IOVS IOV_MAX
17 #endif
18 11
19 12
20 ngx_chain_t * 13 ngx_chain_t *
21 ngx_writev_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit) 14 ngx_writev_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
22 { 15 {
26 ngx_uint_t eintr; 19 ngx_uint_t eintr;
27 ngx_err_t err; 20 ngx_err_t err;
28 ngx_array_t vec; 21 ngx_array_t vec;
29 ngx_chain_t *cl; 22 ngx_chain_t *cl;
30 ngx_event_t *wev; 23 ngx_event_t *wev;
31 struct iovec *iov, iovs[NGX_IOVS]; 24 struct iovec *iov, iovs[NGX_IOVS_PREALLOCATE];
32 25
33 wev = c->write; 26 wev = c->write;
34 27
35 if (!wev->ready) { 28 if (!wev->ready) {
36 return in; 29 return in;
55 48
56 send = 0; 49 send = 0;
57 50
58 vec.elts = iovs; 51 vec.elts = iovs;
59 vec.size = sizeof(struct iovec); 52 vec.size = sizeof(struct iovec);
60 vec.nalloc = NGX_IOVS; 53 vec.nalloc = NGX_IOVS_PREALLOCATE;
61 vec.pool = c->pool; 54 vec.pool = c->pool;
62 55
63 for ( ;; ) { 56 for ( ;; ) {
64 prev = NULL; 57 prev = NULL;
65 iov = NULL; 58 iov = NULL;