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-rw-r--r--app/nginx/src/os/unix/ngx_socket.c116
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