#include #include /* * ioctl(FIONBIO) sets a blocking mode with the single syscall * while fcntl(F_SETFL, ~O_NONBLOCK) needs to learn before * a previous state using fcntl(F_GETFL). * * ioctl() and fcntl() are syscalls on at least FreeBSD 2.x, Linux 2.2 * and Solaris 7 */ #if (HAVE_FIONBIO) int ngx_nonblocking(ngx_socket_t s) { unsigned long nb = 1; return ioctl(s, FIONBIO, &nb); } int ngx_blocking(ngx_socket_t s) { unsigned long 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