mirror of
https://github.com/nginx/nginx.git
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116 lines
1.5 KiB
C
116 lines
1.5 KiB
C
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/*
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* Copyright (C) Igor Sysoev
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*/
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#include <ngx_config.h>
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#include <ngx_core.h>
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/*
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* ioctl(FIONBIO) sets a non-blocking mode with the single syscall
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* while fcntl(F_SETFL, O_NONBLOCK) needs to learn the current state
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* using fcntl(F_GETFL).
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*
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* ioctl() and fcntl() are syscalls at least in FreeBSD 2.x, Linux 2.2
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* and Solaris 7.
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*
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* ioctl() in Linux 2.4 and 2.6 uses BKL, however, fcntl(F_SETFL) uses it too.
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*/
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#if (NGX_HAVE_FIONBIO)
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int
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ngx_nonblocking(ngx_socket_t s)
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{
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u_long nb;
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nb = 1;
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return ioctl(s, FIONBIO, &nb);
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}
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int
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ngx_blocking(ngx_socket_t s)
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{
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u_long nb;
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nb = 0;
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return ioctl(s, FIONBIO, &nb);
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}
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#endif
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#if (NGX_FREEBSD)
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int
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ngx_tcp_nopush(ngx_socket_t s)
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{
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int tcp_nopush;
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tcp_nopush = 1;
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return setsockopt(s, IPPROTO_TCP, TCP_NOPUSH,
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(const void *) &tcp_nopush, sizeof(int));
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}
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int
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ngx_tcp_push(ngx_socket_t s)
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{
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int tcp_nopush;
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tcp_nopush = 0;
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return setsockopt(s, IPPROTO_TCP, TCP_NOPUSH,
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(const void *) &tcp_nopush, sizeof(int));
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}
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#elif (NGX_LINUX)
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int
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ngx_tcp_nopush(ngx_socket_t s)
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{
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int cork;
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cork = 1;
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return setsockopt(s, IPPROTO_TCP, TCP_CORK,
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(const void *) &cork, sizeof(int));
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}
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int
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ngx_tcp_push(ngx_socket_t s)
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{
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int cork;
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cork = 0;
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return setsockopt(s, IPPROTO_TCP, TCP_CORK,
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(const void *) &cork, sizeof(int));
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}
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#else
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int
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ngx_tcp_nopush(ngx_socket_t s)
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{
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return 0;
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}
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int
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ngx_tcp_push(ngx_socket_t s)
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{
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return 0;
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}
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#endif
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