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, 102 insertions, 0 deletions

diff --git a/app/nginx/src/os/unix/ngx_os.h b/app/nginx/src/os/unix/ngx_os.h
new file mode 100644
index 0000000..3b32819
--- /dev/null
+++ b/app/nginx/src/os/unix/ngx_os.h
@@ -0,0 +1,102 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ * Copyright (C) Nginx, Inc.
+ */
+
+
+#ifndef _NGX_OS_H_INCLUDED_
+#define _NGX_OS_H_INCLUDED_
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+
+
+#define NGX_IO_SENDFILE    1
+
+
+typedef ssize_t (*ngx_recv_pt)(ngx_connection_t *c, u_char *buf, size_t size);
+typedef ssize_t (*ngx_recv_chain_pt)(ngx_connection_t *c, ngx_chain_t *in,
+    off_t limit);
+typedef ssize_t (*ngx_send_pt)(ngx_connection_t *c, u_char *buf, size_t size);
+typedef ngx_chain_t *(*ngx_send_chain_pt)(ngx_connection_t *c, ngx_chain_t *in,
+    off_t limit);
+
+typedef struct {
+    ngx_recv_pt        recv;
+    ngx_recv_chain_pt  recv_chain;
+    ngx_recv_pt        udp_recv;
+    ngx_send_pt        send;
+    ngx_send_pt        udp_send;
+    ngx_send_chain_pt  udp_send_chain;
+    ngx_send_chain_pt  send_chain;
+    ngx_uint_t         flags;
+} ngx_os_io_t;
+
+
+ngx_int_t ngx_os_init(ngx_log_t *log);
+void ngx_os_status(ngx_log_t *log);
+ngx_int_t ngx_os_specific_init(ngx_log_t *log);
+void ngx_os_specific_status(ngx_log_t *log);
+ngx_int_t ngx_daemon(ngx_log_t *log);
+ngx_int_t ngx_os_signal_process(ngx_cycle_t *cycle, char *sig, ngx_pid_t pid);
+
+
+ssize_t ngx_unix_recv(ngx_connection_t *c, u_char *buf, size_t size);
+ssize_t ngx_readv_chain(ngx_connection_t *c, ngx_chain_t *entry, off_t limit);
+ssize_t ngx_udp_unix_recv(ngx_connection_t *c, u_char *buf, size_t size);
+ssize_t ngx_unix_send(ngx_connection_t *c, u_char *buf, size_t size);
+ngx_chain_t *ngx_writev_chain(ngx_connection_t *c, ngx_chain_t *in,
+    off_t limit);
+ssize_t ngx_udp_unix_send(ngx_connection_t *c, u_char *buf, size_t size);
+ngx_chain_t *ngx_udp_unix_sendmsg_chain(ngx_connection_t *c, ngx_chain_t *in,
+    off_t limit);
+
+
+#if (IOV_MAX > 64)
+#define NGX_IOVS_PREALLOCATE  64
+#else
+#define NGX_IOVS_PREALLOCATE  IOV_MAX
+#endif
+
+
+typedef struct {
+    struct iovec  *iovs;
+    ngx_uint_t     count;
+    size_t         size;
+    ngx_uint_t     nalloc;
+} ngx_iovec_t;
+
+ngx_chain_t *ngx_output_chain_to_iovec(ngx_iovec_t *vec, ngx_chain_t *in,
+    size_t limit, ngx_log_t *log);
+
+
+ssize_t ngx_writev(ngx_connection_t *c, ngx_iovec_t *vec);
+
+
+extern ngx_os_io_t  ngx_os_io;
+extern ngx_int_t    ngx_ncpu;
+extern ngx_int_t    ngx_max_sockets;
+extern ngx_uint_t   ngx_inherited_nonblocking;
+extern ngx_uint_t   ngx_tcp_nodelay_and_tcp_nopush;
+
+
+#if (NGX_FREEBSD)
+#include <ngx_freebsd.h>
+
+
+#elif (NGX_LINUX)
+#include <ngx_linux.h>
+
+
+#elif (NGX_SOLARIS)
+#include <ngx_solaris.h>
+
+
+#elif (NGX_DARWIN)
+#include <ngx_darwin.h>
+#endif
+
+
+#endif /* _NGX_OS_H_INCLUDED_ */