Like PlatformThreadId, this type is borrowed from Chromium.
The difference between the two is that PlatformThreadRef is pthread_t on posix platforms.
On Windows PlatformThreadRef and PlatformThreadId are the same thing.
The reason for this switch is pretty crazy. On Chromium's "Mac 10.9 dbg" bot,
we have been seeing the following code:
ThreadCheckerImpl::ThreadCheckerImpl() : valid_thread_(CurrentThreadId()) {
fprintf(stderr, "*** valid=%d\n", valid_thread_);
valid_thread_ = CurrentThreadId();
fprintf(stderr, "*** valid after=%d\n", valid_thread_);
}
print this:
*** valid=946872320
*** valid after=5647
This is for the same thread checker instance.
What's worse is that printing out what CurrentThreadId was returning, yielded that it was always returning 5647.
After switching over to pthread_t on Mac, this stopped happening.
So, to remove the current hack, reinstate the class on Mac and take a look at the next problem, I'm switching to pthread_t.
Really looking forward to truly getting to the bottom of this.
Tbr-ing since the build is essentially broken (we can't roll).
TBR=pbos@webrtc.org
Review URL: https://webrtc-codereview.appspot.com/37199004
Cr-Commit-Position: refs/heads/master@{#8283}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8283 4adac7df-926f-26a2-2b94-8c16560cd09d
This requires two fixes:
1. Use DCHECK instead of assert in ThreadChecker's unittest.
2. Activate DCHECK when DCHECK_ALWAYS_ON in enabled.
Both these modifications are in line with Chromium's implementation.
The ThreadChecker unittest was changed to use assert instead of DCHECK
on the initial import (since WebRTC did not have a DCHECK back then).
BUG=3803
TEST=local out/{Debug,Release}/rtc_unittests built with and without DCHECK_ALWAYS_ON
R=andrew@webrtc.org, pbos@webrtc.org
Review URL: https://webrtc-codereview.appspot.com/24569004
git-svn-id: http://webrtc.googlecode.com/svn/trunk@7178 4adac7df-926f-26a2-2b94-8c16560cd09d
