diff options
Diffstat (limited to 'app/nginx/src/os/unix/ngx_socket.c')
-rw-r--r-- | app/nginx/src/os/unix/ngx_socket.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/app/nginx/src/os/unix/ngx_socket.c b/app/nginx/src/os/unix/ngx_socket.c new file mode 100644 index 0000000..3978f65 --- /dev/null +++ b/app/nginx/src/os/unix/ngx_socket.c @@ -0,0 +1,116 @@ + +/* + * Copyright (C) Igor Sysoev + * Copyright (C) Nginx, Inc. + */ + + +#include <ngx_config.h> +#include <ngx_core.h> + + +/* + * ioctl(FIONBIO) sets a non-blocking mode with the single syscall + * while fcntl(F_SETFL, O_NONBLOCK) needs to learn the current state + * using fcntl(F_GETFL). + * + * ioctl() and fcntl() are syscalls at least in 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 (NGX_HAVE_FIONBIO) + +int +ngx_nonblocking(ngx_socket_t s) +{ + int nb; + + nb = 1; + + return ioctl(s, FIONBIO, &nb); +} + + +int +ngx_blocking(ngx_socket_t s) +{ + int nb; + + nb = 0; + + return ioctl(s, FIONBIO, &nb); +} + +#endif + + +#if (NGX_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 (NGX_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 0; +} + + +int +ngx_tcp_push(ngx_socket_t s) +{ + return 0; +} + +#endif |