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Re: [reSIProcate] RecursiveMutex for APPLE and INTEL_COMPILER


Thanks for doing the research, Byron. I'd hate to break things for 10.1 when keeping them fixed is easy.

I propose the following (which I will commit shortly unless someone objects):

Index: rutil/RecursiveMutex.cxx
===================================================================
--- rutil/RecursiveMutex.cxx    (revision 7264)
+++ rutil/RecursiveMutex.cxx    (working copy)
@@ -18,7 +18,10 @@

using resip::RecursiveMutex;

-#if defined( __APPLE__ )  || defined (__INTEL_COMPILER)
+// .abr. OS X 10.2 is OS_MAJOR_VER 6. Prior to this, OS X did not support
+// recursive mutexes.
+
+#if (defined( __APPLE__ ) && OS_MAJOR_VER < 6) || defined (__INTEL_COMPILER)
// !cj! need to write apple/intel mutex stuff
namespace resip
{
Index: build/Makefile.all
===================================================================
--- build/Makefile.all  (revision 7264)
+++ build/Makefile.all  (working copy)
@@ -90,9 +90,19 @@

# Detect and normalize the OSTYPE
ifndef OSTYPE
-OSTYPE = $(shell uname)
+OSTYPE       := $(shell uname)
+OSVER        := $(shell uname -r)
endif

+OS_MAJOR_VER := $(word 1,$(subst ., ,$(OSVER)) 0 0 0 0)
+OS_MINOR_VER := $(word 2,$(subst ., ,$(OSVER)) 0 0 0 0)
+OS_POINT_VER := $(word 3,$(subst ., ,$(OSVER)) 0 0 0 0)
+OS_PATCH_VER := $(word 4,$(subst ., ,$(OSVER)) 0 0 0 0)
+DEFINES += OS_MAJOR_VER=$(OS_MAJOR_VER) \
+           OS_MINOR_VER=$(OS_MINOR_VER) \
+           OS_POINT_VER=$(OS_POINT_VER) \
+           OS_PATCH_VER=$(OS_PATCH_VER)
+
ifeq ($(OSTYPE),solaris)
OSTYPE = SunOS
endif



On 9/25/07 3:29 PM, Byron Campen wrote:
After some digging, it appears that support for recursive mutexes was added to OS X in version 10.2. Is this sufficiently far in the past (last update released was 10.2.8 in Oct 2003) that we are comfortable with removing the defined(__APPLE__) check?

Best regards,
Byron Campen

Why is this ifdef to not compile RecursiveMutex in the code?

#if defined( __APPLE__ )  || defined (__INTEL_COMPILER)
// !cj! need to write apple/intel mutex stuff
namespace resip
{

RecursiveMutex::RecursiveMutex()
{
   //assert(0);
}
...


OSX (at least 10.4) can compile the regular implementation just
fine---we just removed the defined(__APPLE__) and recursive mutexes
work.  I don't know about the __INTEL_COMPILER, but why are all the
assert(0)'s commented out?  Seems like code that tries to use this
would want to know it's not really getting a mutex.

Bruce
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