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authorGravatar Abseil Team <absl-team@google.com>2019-12-12 10:36:03 -0800
committerGravatar Matt Calabrese <calabrese@x.team>2019-12-12 15:37:13 -0500
commit12bc53e0318d80569270a5b26ccbc62b52022b89 (patch)
tree703f7dd5e7fdea7db3eefe317b10b1f67ddd8212 /absl/synchronization/mutex.cc
parent1e39f8626a4dadec1f56920b999dd4c3cfae333e (diff)
Export of internal Abseil changes
-- c99f979ad34f155fbeeea69b88bdc7458d89a21c by Derek Mauro <dmauro@google.com>: Remove a floating point division by zero test. This isn't testing behavior related to the library, and MSVC warns about it in opt mode. PiperOrigin-RevId: 285220804 -- 68b015491f0dbf1ab547994673281abd1f34cd4b by Gennadiy Rozental <rogeeff@google.com>: This CL introduces following changes to the class FlagImpl: * We eliminate the CommandLineFlagLocks struct. Instead callback guard and callback function are combined into a single CallbackData struct, while primary data lock is stored separately. * CallbackData member of class FlagImpl is initially set to be nullptr and is only allocated and initialized when a flag's callback is being set. For most flags we do not pay for the extra space and extra absl::Mutex now. * Primary data guard is stored in data_guard_ data member. This is a properly aligned character buffer of necessary size. During initialization of the flag we construct absl::Mutex in this space using placement new call. * We now avoid extra value copy after successful attempt to parse value out of string. Instead we swap flag's current value with tentative value we just produced. PiperOrigin-RevId: 285132636 -- ed45d118fb818969eb13094cf7827c885dfc562c by Tom Manshreck <shreck@google.com>: Change null-term* (and nul-term*) to NUL-term* in comments PiperOrigin-RevId: 285036610 -- 729619017944db895ce8d6d29c1995aa2e5628a5 by Derek Mauro <dmauro@google.com>: Use the Posix implementation of thread identity on MinGW. Some versions of MinGW suffer from thread_local bugs. PiperOrigin-RevId: 285022920 -- 39a25493503c76885bc3254c28f66a251c5b5bb0 by Greg Falcon <gfalcon@google.com>: Implementation detail change. Add further ABSL_NAMESPACE_BEGIN and _END annotation macros to files in Abseil. PiperOrigin-RevId: 285012012 GitOrigin-RevId: c99f979ad34f155fbeeea69b88bdc7458d89a21c Change-Id: I4c85d3704e45d11a9ac50d562f39640a6adbedc1
Diffstat (limited to 'absl/synchronization/mutex.cc')
-rw-r--r--absl/synchronization/mutex.cc4
1 files changed, 3 insertions, 1 deletions
diff --git a/absl/synchronization/mutex.cc b/absl/synchronization/mutex.cc
index 100def2d..46af8a52 100644
--- a/absl/synchronization/mutex.cc
+++ b/absl/synchronization/mutex.cc
@@ -71,6 +71,7 @@ ABSL_ATTRIBUTE_WEAK void AbslInternalMutexYield() { std::this_thread::yield(); }
} // extern "C"
namespace absl {
+ABSL_NAMESPACE_BEGIN
namespace {
@@ -295,7 +296,7 @@ static struct SynchEvent { // this is a trivial hash table for the events
bool log; // logging turned on
// Constant after initialization
- char name[1]; // actually longer---null-terminated std::string
+ char name[1]; // actually longer---NUL-terminated std::string
} * synch_event[kNSynchEvent] ABSL_GUARDED_BY(synch_event_mu);
// Ensure that the object at "addr" has a SynchEvent struct associated with it,
@@ -2720,4 +2721,5 @@ bool Condition::GuaranteedEqual(const Condition *a, const Condition *b) {
a->arg_ == b->arg_ && a->method_ == b->method_;
}
+ABSL_NAMESPACE_END
} // namespace absl