Mercurial > hg > nginx-mail
diff src/os/unix/ngx_socket.c @ 0:f0b350454894 NGINX_0_1_0
nginx 0.1.0
*) The first public version.
author | Igor Sysoev <http://sysoev.ru> |
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date | Mon, 04 Oct 2004 00:00:00 +0400 |
parents | |
children | cc9f381affaa |
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new file mode 100644 --- /dev/null +++ b/src/os/unix/ngx_socket.c @@ -0,0 +1,104 @@ + +/* + * Copyright (C) Igor Sysoev + */ + + +#include <ngx_config.h> +#include <ngx_core.h> + + +/* + * ioctl(FIONBIO) sets a blocking mode with the single syscall + * while fcntl(F_SETFL, ~O_NONBLOCK) needs to learn before + * the previous state using fcntl(F_GETFL). + * + * ioctl() and fcntl() are syscalls on at least FreeBSD 2.x, Linux 2.2 + * and Solaris 7. + * + * ioctl() in Linux 2.4 and 2.6 uses BKL, however fcntl(F_SETFL) uses it too. + */ + + +#if (HAVE_FIONBIO) + +int ngx_nonblocking(ngx_socket_t s) +{ + u_long nb; + + nb = 1; + + return ioctl(s, FIONBIO, &nb); +} + + +int ngx_blocking(ngx_socket_t s) +{ + u_long nb; + + nb = 0; + + return ioctl(s, FIONBIO, &nb); +} + +#endif + + +#ifdef __FreeBSD__ + +int ngx_tcp_nopush(ngx_socket_t s) +{ + int tcp_nopush; + + tcp_nopush = 1; + + return setsockopt(s, IPPROTO_TCP, TCP_NOPUSH, + (const void *) &tcp_nopush, sizeof(int)); +} + + +int ngx_tcp_push(ngx_socket_t s) +{ + int tcp_nopush; + + tcp_nopush = 0; + + return setsockopt(s, IPPROTO_TCP, TCP_NOPUSH, + (const void *) &tcp_nopush, sizeof(int)); +} + +#elif __linux__ + +int ngx_tcp_nopush(ngx_socket_t s) +{ + int cork; + + cork = 1; + + return setsockopt(s, IPPROTO_TCP, TCP_CORK, + (const void *) &cork, sizeof(int)); +} + +int ngx_tcp_push(ngx_socket_t s) +{ + int cork; + + cork = 0; + + return setsockopt(s, IPPROTO_TCP, TCP_CORK, + (const void *) &cork, sizeof(int)); +} + +#else + +int ngx_tcp_nopush(ngx_socket_t s) +{ + return NGX_OK; +} + +int ngx_tcp_push(ngx_socket_t s) +{ + return NGX_OK; +} + +#endif