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* Fix incorrect OS_APPLE to OS_MACOSX and drop COMPILER_GCC since the codedeanm@google.com2008-08-061-1/+1
| | | | | | | | uses the Apple APIs for atomic operations and not inline assembly. git-svn-id: svn://svn.chromium.org/chrome/trunk/src@432 0039d316-1c4b-4281-b951-d872f2087c98
* Use the build_config defines in atomicops.h. This still uses the ↵deanm@google.com2008-08-051-13/+10
| | | | | | compiler/platform specific defines in the platform dependent internals headers, keeping them closer to the original implementation. git-svn-id: svn://svn.chromium.org/chrome/trunk/src@372 0039d316-1c4b-4281-b951-d872f2087c98
* New atomic operation foundation code and interfaces. Based on the atomic ↵deanm@google.com2008-08-051-0/+165
operations in google-perftools / tcmalloc. - Makes atomic operations cross-platform (win/mac/linux). - Supports 64 bit operations on 64 bit processors. - Make atomic operations more correct on Windows (barriers). - Introduces a better / safer interface, and abstracts away most common atomic operations, reference counting and sequence numbers. git-svn-id: svn://svn.chromium.org/chrome/trunk/src@370 0039d316-1c4b-4281-b951-d872f2087c98