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, 234 insertions, 0 deletions

diff --git a/app/nginx/src/core/ngx_string.h b/app/nginx/src/core/ngx_string.h
new file mode 100644
index 0000000..7363bd2
--- /dev/null
+++ b/app/nginx/src/core/ngx_string.h
@@ -0,0 +1,234 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ * Copyright (C) Nginx, Inc.
+ */
+
+
+#ifndef _NGX_STRING_H_INCLUDED_
+#define _NGX_STRING_H_INCLUDED_
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+
+
+typedef struct {
+    size_t      len;
+    u_char     *data;
+} ngx_str_t;
+
+
+typedef struct {
+    ngx_str_t   key;
+    ngx_str_t   value;
+} ngx_keyval_t;
+
+
+typedef struct {
+    unsigned    len:28;
+
+    unsigned    valid:1;
+    unsigned    no_cacheable:1;
+    unsigned    not_found:1;
+    unsigned    escape:1;
+
+    u_char     *data;
+} ngx_variable_value_t;
+
+
+#define ngx_string(str)     { sizeof(str) - 1, (u_char *) str }
+#define ngx_null_string     { 0, NULL }
+#define ngx_str_set(str, text)                                               \
+    (str)->len = sizeof(text) - 1; (str)->data = (u_char *) text
+#define ngx_str_null(str)   (str)->len = 0; (str)->data = NULL
+
+
+#define ngx_tolower(c)      (u_char) ((c >= 'A' && c <= 'Z') ? (c | 0x20) : c)
+#define ngx_toupper(c)      (u_char) ((c >= 'a' && c <= 'z') ? (c & ~0x20) : c)
+
+void ngx_strlow(u_char *dst, u_char *src, size_t n);
+
+
+#define ngx_strncmp(s1, s2, n)  strncmp((const char *) s1, (const char *) s2, n)
+
+
+/* msvc and icc7 compile strcmp() to inline loop */
+#define ngx_strcmp(s1, s2)  strcmp((const char *) s1, (const char *) s2)
+
+
+#define ngx_strstr(s1, s2)  strstr((const char *) s1, (const char *) s2)
+#define ngx_strlen(s)       strlen((const char *) s)
+
+#define ngx_strchr(s1, c)   strchr((const char *) s1, (int) c)
+
+static ngx_inline u_char *
+ngx_strlchr(u_char *p, u_char *last, u_char c)
+{
+    while (p < last) {
+
+        if (*p == c) {
+            return p;
+        }
+
+        p++;
+    }
+
+    return NULL;
+}
+
+
+/*
+ * msvc and icc7 compile memset() to the inline "rep stos"
+ * while ZeroMemory() and bzero() are the calls.
+ * icc7 may also inline several mov's of a zeroed register for small blocks.
+ */
+#define ngx_memzero(buf, n)       (void) memset(buf, 0, n)
+#define ngx_memset(buf, c, n)     (void) memset(buf, c, n)
+
+
+#if (NGX_MEMCPY_LIMIT)
+
+void *ngx_memcpy(void *dst, const void *src, size_t n);
+#define ngx_cpymem(dst, src, n)   (((u_char *) ngx_memcpy(dst, src, n)) + (n))
+
+#else
+
+/*
+ * gcc3, msvc, and icc7 compile memcpy() to the inline "rep movs".
+ * gcc3 compiles memcpy(d, s, 4) to the inline "mov"es.
+ * icc8 compile memcpy(d, s, 4) to the inline "mov"es or XMM moves.
+ */
+#define ngx_memcpy(dst, src, n)   (void) memcpy(dst, src, n)
+#define ngx_cpymem(dst, src, n)   (((u_char *) memcpy(dst, src, n)) + (n))
+
+#endif
+
+
+#if ( __INTEL_COMPILER >= 800 )
+
+/*
+ * the simple inline cycle copies the variable length strings up to 16
+ * bytes faster than icc8 autodetecting _intel_fast_memcpy()
+ */
+
+static ngx_inline u_char *
+ngx_copy(u_char *dst, u_char *src, size_t len)
+{
+    if (len < 17) {
+
+        while (len) {
+            *dst++ = *src++;
+            len--;
+        }
+
+        return dst;
+
+    } else {
+        return ngx_cpymem(dst, src, len);
+    }
+}
+
+#else
+
+#define ngx_copy                  ngx_cpymem
+
+#endif
+
+
+#define ngx_memmove(dst, src, n)   (void) memmove(dst, src, n)
+#define ngx_movemem(dst, src, n)   (((u_char *) memmove(dst, src, n)) + (n))
+
+
+/* msvc and icc7 compile memcmp() to the inline loop */
+#define ngx_memcmp(s1, s2, n)  memcmp((const char *) s1, (const char *) s2, n)
+
+
+u_char *ngx_cpystrn(u_char *dst, u_char *src, size_t n);
+u_char *ngx_pstrdup(ngx_pool_t *pool, ngx_str_t *src);
+u_char * ngx_cdecl ngx_sprintf(u_char *buf, const char *fmt, ...);
+u_char * ngx_cdecl ngx_snprintf(u_char *buf, size_t max, const char *fmt, ...);
+u_char * ngx_cdecl ngx_slprintf(u_char *buf, u_char *last, const char *fmt,
+    ...);
+u_char *ngx_vslprintf(u_char *buf, u_char *last, const char *fmt, va_list args);
+#define ngx_vsnprintf(buf, max, fmt, args)                                   \
+    ngx_vslprintf(buf, buf + (max), fmt, args)
+
+ngx_int_t ngx_strcasecmp(u_char *s1, u_char *s2);
+ngx_int_t ngx_strncasecmp(u_char *s1, u_char *s2, size_t n);
+
+u_char *ngx_strnstr(u_char *s1, char *s2, size_t n);
+
+u_char *ngx_strstrn(u_char *s1, char *s2, size_t n);
+u_char *ngx_strcasestrn(u_char *s1, char *s2, size_t n);
+u_char *ngx_strlcasestrn(u_char *s1, u_char *last, u_char *s2, size_t n);
+
+ngx_int_t ngx_rstrncmp(u_char *s1, u_char *s2, size_t n);
+ngx_int_t ngx_rstrncasecmp(u_char *s1, u_char *s2, size_t n);
+ngx_int_t ngx_memn2cmp(u_char *s1, u_char *s2, size_t n1, size_t n2);
+ngx_int_t ngx_dns_strcmp(u_char *s1, u_char *s2);
+ngx_int_t ngx_filename_cmp(u_char *s1, u_char *s2, size_t n);
+
+ngx_int_t ngx_atoi(u_char *line, size_t n);
+ngx_int_t ngx_atofp(u_char *line, size_t n, size_t point);
+ssize_t ngx_atosz(u_char *line, size_t n);
+off_t ngx_atoof(u_char *line, size_t n);
+time_t ngx_atotm(u_char *line, size_t n);
+ngx_int_t ngx_hextoi(u_char *line, size_t n);
+
+u_char *ngx_hex_dump(u_char *dst, u_char *src, size_t len);
+
+
+#define ngx_base64_encoded_length(len)  (((len + 2) / 3) * 4)
+#define ngx_base64_decoded_length(len)  (((len + 3) / 4) * 3)
+
+void ngx_encode_base64(ngx_str_t *dst, ngx_str_t *src);
+void ngx_encode_base64url(ngx_str_t *dst, ngx_str_t *src);
+ngx_int_t ngx_decode_base64(ngx_str_t *dst, ngx_str_t *src);
+ngx_int_t ngx_decode_base64url(ngx_str_t *dst, ngx_str_t *src);
+
+uint32_t ngx_utf8_decode(u_char **p, size_t n);
+size_t ngx_utf8_length(u_char *p, size_t n);
+u_char *ngx_utf8_cpystrn(u_char *dst, u_char *src, size_t n, size_t len);
+
+
+#define NGX_ESCAPE_URI            0
+#define NGX_ESCAPE_ARGS           1
+#define NGX_ESCAPE_URI_COMPONENT  2
+#define NGX_ESCAPE_HTML           3
+#define NGX_ESCAPE_REFRESH        4
+#define NGX_ESCAPE_MEMCACHED      5
+#define NGX_ESCAPE_MAIL_AUTH      6
+
+#define NGX_UNESCAPE_URI       1
+#define NGX_UNESCAPE_REDIRECT  2
+
+uintptr_t ngx_escape_uri(u_char *dst, u_char *src, size_t size,
+    ngx_uint_t type);
+void ngx_unescape_uri(u_char **dst, u_char **src, size_t size, ngx_uint_t type);
+uintptr_t ngx_escape_html(u_char *dst, u_char *src, size_t size);
+uintptr_t ngx_escape_json(u_char *dst, u_char *src, size_t size);
+
+
+typedef struct {
+    ngx_rbtree_node_t         node;
+    ngx_str_t                 str;
+} ngx_str_node_t;
+
+
+void ngx_str_rbtree_insert_value(ngx_rbtree_node_t *temp,
+    ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel);
+ngx_str_node_t *ngx_str_rbtree_lookup(ngx_rbtree_t *rbtree, ngx_str_t *name,
+    uint32_t hash);
+
+
+void ngx_sort(void *base, size_t n, size_t size,
+    ngx_int_t (*cmp)(const void *, const void *));
+#define ngx_qsort             qsort
+
+
+#define ngx_value_helper(n)   #n
+#define ngx_value(n)          ngx_value_helper(n)
+
+
+#endif /* _NGX_STRING_H_INCLUDED_ */