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, 63 insertions, 0 deletions

diff --git a/app/nginx/src/core/ngx_list.c b/app/nginx/src/core/ngx_list.c
new file mode 100644
index 0000000..d0eb159
--- /dev/null
+++ b/app/nginx/src/core/ngx_list.c
@@ -0,0 +1,63 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ * Copyright (C) Nginx, Inc.
+ */
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+
+
+ngx_list_t *
+ngx_list_create(ngx_pool_t *pool, ngx_uint_t n, size_t size)
+{
+    ngx_list_t  *list;
+
+    list = ngx_palloc(pool, sizeof(ngx_list_t));
+    if (list == NULL) {
+        return NULL;
+    }
+
+    if (ngx_list_init(list, pool, n, size) != NGX_OK) {
+        return NULL;
+    }
+
+    return list;
+}
+
+
+void *
+ngx_list_push(ngx_list_t *l)
+{
+    void             *elt;
+    ngx_list_part_t  *last;
+
+    last = l->last;
+
+    if (last->nelts == l->nalloc) {
+
+        /* the last part is full, allocate a new list part */
+
+        last = ngx_palloc(l->pool, sizeof(ngx_list_part_t));
+        if (last == NULL) {
+            return NULL;
+        }
+
+        last->elts = ngx_palloc(l->pool, l->nalloc * l->size);
+        if (last->elts == NULL) {
+            return NULL;
+        }
+
+        last->nelts = 0;
+        last->next = NULL;
+
+        l->last->next = last;
+        l->last = last;
+    }
+
+    elt = (char *) last->elts + l->size * last->nelts;
+    last->nelts++;
+
+    return elt;
+}