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, 104 insertions, 0 deletions

diff --git a/app/nginx/src/os/unix/ngx_time.c b/app/nginx/src/os/unix/ngx_time.c
new file mode 100644
index 0000000..cc760b2
--- /dev/null
+++ b/app/nginx/src/os/unix/ngx_time.c
@@ -0,0 +1,104 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ * Copyright (C) Nginx, Inc.
+ */
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+
+
+/*
+ * FreeBSD does not test /etc/localtime change, however, we can workaround it
+ * by calling tzset() with TZ and then without TZ to update timezone.
+ * The trick should work since FreeBSD 2.1.0.
+ *
+ * Linux does not test /etc/localtime change in localtime(),
+ * but may stat("/etc/localtime") several times in every strftime(),
+ * therefore we use it to update timezone.
+ *
+ * Solaris does not test /etc/TIMEZONE change too and no workaround available.
+ */
+
+void
+ngx_timezone_update(void)
+{
+#if (NGX_FREEBSD)
+
+    if (getenv("TZ")) {
+        return;
+    }
+
+    putenv("TZ=UTC");
+
+    tzset();
+
+    unsetenv("TZ");
+
+    tzset();
+
+#elif (NGX_LINUX)
+    time_t      s;
+    struct tm  *t;
+    char        buf[4];
+
+    s = time(0);
+
+    t = localtime(&s);
+
+    strftime(buf, 4, "%H", t);
+
+#endif
+}
+
+
+void
+ngx_localtime(time_t s, ngx_tm_t *tm)
+{
+#if (NGX_HAVE_LOCALTIME_R)
+    (void) localtime_r(&s, tm);
+
+#else
+    ngx_tm_t  *t;
+
+    t = localtime(&s);
+    *tm = *t;
+
+#endif
+
+    tm->ngx_tm_mon++;
+    tm->ngx_tm_year += 1900;
+}
+
+
+void
+ngx_libc_localtime(time_t s, struct tm *tm)
+{
+#if (NGX_HAVE_LOCALTIME_R)
+    (void) localtime_r(&s, tm);
+
+#else
+    struct tm  *t;
+
+    t = localtime(&s);
+    *tm = *t;
+
+#endif
+}
+
+
+void
+ngx_libc_gmtime(time_t s, struct tm *tm)
+{
+#if (NGX_HAVE_LOCALTIME_R)
+    (void) gmtime_r(&s, tm);
+
+#else
+    struct tm  *t;
+
+    t = gmtime(&s);
+    *tm = *t;
+
+#endif
+}