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, 88 insertions, 0 deletions

diff --git a/app/nginx/src/os/unix/ngx_process.h b/app/nginx/src/os/unix/ngx_process.h
new file mode 100644
index 0000000..7b5e8c0
--- /dev/null
+++ b/app/nginx/src/os/unix/ngx_process.h
@@ -0,0 +1,88 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ * Copyright (C) Nginx, Inc.
+ */
+
+
+#ifndef _NGX_PROCESS_H_INCLUDED_
+#define _NGX_PROCESS_H_INCLUDED_
+
+
+#include <ngx_setaffinity.h>
+#include <ngx_setproctitle.h>
+
+
+typedef pid_t       ngx_pid_t;
+
+#define NGX_INVALID_PID  -1
+
+typedef void (*ngx_spawn_proc_pt) (ngx_cycle_t *cycle, void *data);
+
+typedef struct {
+    ngx_pid_t           pid;
+    int                 status;
+    ngx_socket_t        channel[2];
+
+    ngx_spawn_proc_pt   proc;
+    void               *data;
+    char               *name;
+
+    unsigned            respawn:1;
+    unsigned            just_spawn:1;
+    unsigned            detached:1;
+    unsigned            exiting:1;
+    unsigned            exited:1;
+} ngx_process_t;
+
+
+typedef struct {
+    char         *path;
+    char         *name;
+    char *const  *argv;
+    char *const  *envp;
+} ngx_exec_ctx_t;
+
+
+#define NGX_MAX_PROCESSES         1024
+
+#define NGX_PROCESS_NORESPAWN     -1
+#define NGX_PROCESS_JUST_SPAWN    -2
+#define NGX_PROCESS_RESPAWN       -3
+#define NGX_PROCESS_JUST_RESPAWN  -4
+#define NGX_PROCESS_DETACHED      -5
+
+
+#define ngx_getpid   getpid
+
+#ifndef ngx_log_pid
+#define ngx_log_pid  ngx_pid
+#endif
+
+
+ngx_pid_t ngx_spawn_process(ngx_cycle_t *cycle,
+    ngx_spawn_proc_pt proc, void *data, char *name, ngx_int_t respawn);
+ngx_pid_t ngx_execute(ngx_cycle_t *cycle, ngx_exec_ctx_t *ctx);
+ngx_int_t ngx_init_signals(ngx_log_t *log);
+void ngx_debug_point(void);
+
+
+#if (NGX_HAVE_SCHED_YIELD)
+#define ngx_sched_yield()  sched_yield()
+#else
+#define ngx_sched_yield()  usleep(1)
+#endif
+
+
+extern int            ngx_argc;
+extern char         **ngx_argv;
+extern char         **ngx_os_argv;
+
+extern ngx_pid_t      ngx_pid;
+extern ngx_socket_t   ngx_channel;
+extern ngx_int_t      ngx_process_slot;
+extern ngx_int_t      ngx_last_process;
+extern ngx_process_t  ngx_processes[NGX_MAX_PROCESSES];
+
+
+#endif /* _NGX_PROCESS_H_INCLUDED_ */