[x265] [PATCH] threadpool: use all available threads on each NUMA node with --pools=NULL option too

[mahesh at multicorewareinc.com]

# HG changeset patch
# User Mahesh Pittala <mahesh at muticorewareinc.com>
# Date 1450774004 -19800
#      Tue Dec 22 14:16:44 2015 +0530
# Node ID cb97973f7ae5ab5db25a63850d549152f71394cd
# Parent  5276fbdce4bd2598b8ccf363319f94c31523272d
 threadpool: use all available threads on each NUMA node with --pools=NULL option too

 from x265.readthedocs, --pools = NULL, "", "*" are doing same functionality.
--pools="" & --pools="*" are using all threads but when we pass --pools=NULL, disabled
all threads pools but supposed to enable.

diff -r 5276fbdce4bd -r cb97973f7ae5 source/common/threadpool.cpp
--- a/source/common/threadpool.cpp	Tue Dec 22 09:05:34 2015 +0530
+++ b/source/common/threadpool.cpp	Tue Dec 22 14:16:44 2015 +0530
@@ -56,6 +56,8 @@
 #if MACOS
 #include <sys/param.h>
 #include <sys/sysctl.h>
+#else
+#define strcasecmp _stricmp 
 #endif
 #if HAVE_LIBNUMA
 #include <numa.h>
@@ -277,7 +279,7 @@
             }
             else if (*nodeStr == '-')
                 threadsPerPool[i] = 0;
-            else if (*nodeStr == '*')
+			else if (*nodeStr == '*' || !strcasecmp(nodeStr, "NULL"))
             {
                 for (int j = i; j < numNumaNodes; j++)
                 {