Integrate TLDK with NGINX

Created a clone of nginx (from https://github.com/nginx/nginx)
to demonstrate and benchmark TLDK library integrated with real
world application.
A new nginx module is created and and BSD socket-like API is implemented
on top of native TLDK API.
Note, that right now only minimalistic subset of socket-like API is provided:
- accept
- close
- readv
- recv
- writev
so only limited nginx functionality is available for a moment.

Change-Id: Ie1efe9349a0538da4348a48fb8306cbf636b5a92
Signed-off-by: Mohammad Abdul Awal <mohammad.abdul.awal@intel.com>
Signed-off-by: Reshma Pattan <reshma.pattan@intel.com>
Signed-off-by: Remy Horton <remy.horton@intel.com>
Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>

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