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comparison src/os/unix/ngx_readv_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 43512a33e8f2
children a0a14319968b
comparison
equal deleted inserted replaced
5853:a6e83ac70af9 5854:b63e829621ab
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 11
12 12
13 #if (IOV_MAX > 64)
14 #define NGX_IOVS 64
15 #else
16 #define NGX_IOVS IOV_MAX
17 #endif
18
19
20 ssize_t 13 ssize_t
21 ngx_readv_chain(ngx_connection_t *c, ngx_chain_t *chain) 14 ngx_readv_chain(ngx_connection_t *c, ngx_chain_t *chain)
22 { 15 {
23 u_char *prev; 16 u_char *prev;
24 ssize_t n, size; 17 ssize_t n, size;
25 ngx_err_t err; 18 ngx_err_t err;
26 ngx_array_t vec; 19 ngx_array_t vec;
27 ngx_event_t *rev; 20 ngx_event_t *rev;
28 struct iovec *iov, iovs[NGX_IOVS]; 21 struct iovec *iov, iovs[NGX_IOVS_PREALLOCATE];
29 22
30 rev = c->read; 23 rev = c->read;
31 24
32 #if (NGX_HAVE_KQUEUE) 25 #if (NGX_HAVE_KQUEUE)
33 26
65 size = 0; 58 size = 0;
66 59
67 vec.elts = iovs; 60 vec.elts = iovs;
68 vec.nelts = 0; 61 vec.nelts = 0;
69 vec.size = sizeof(struct iovec); 62 vec.size = sizeof(struct iovec);
70 vec.nalloc = NGX_IOVS; 63 vec.nalloc = NGX_IOVS_PREALLOCATE;
71 vec.pool = c->pool; 64 vec.pool = c->pool;
72 65
73 /* coalesce the neighbouring bufs */ 66 /* coalesce the neighbouring bufs */
74 67
75 while (chain) { 68 while (chain) {