diff options
| author | joerg <joerg@NetBSD.org> | 2015-08-20 09:31:47 +0000 |
|---|---|---|
| committer | joerg <joerg@NetBSD.org> | 2015-08-20 09:31:47 +0000 |
| commit | b2e8b4bcac1662c35cd7d38149be011d22d4fa3a (patch) | |
| tree | e940ceb6c9e0446048768f5637a659d3ff0c74ba /external/bsd/libc++/dist/libcxx/src/shared_mutex.cpp | |
| parent | b8c252c8fd23d42032d89f7d220628592ca94935 (diff) | |
Import libc++ r245547. Various bugfixes, improvements to the C++14
support and some experimental features from the library standard track.
Diffstat (limited to 'external/bsd/libc++/dist/libcxx/src/shared_mutex.cpp')
| -rw-r--r-- | external/bsd/libc++/dist/libcxx/src/shared_mutex.cpp | 30 |
1 files changed, 23 insertions, 7 deletions
diff --git a/external/bsd/libc++/dist/libcxx/src/shared_mutex.cpp b/external/bsd/libc++/dist/libcxx/src/shared_mutex.cpp index dd78a1647fe..874aceb1b03 100644 --- a/external/bsd/libc++/dist/libcxx/src/shared_mutex.cpp +++ b/external/bsd/libc++/dist/libcxx/src/shared_mutex.cpp @@ -7,12 +7,16 @@ // //===----------------------------------------------------------------------===// +#include "__config" +#ifndef _LIBCPP_HAS_NO_THREADS + #define _LIBCPP_BUILDING_SHARED_MUTEX #include "shared_mutex" _LIBCPP_BEGIN_NAMESPACE_STD -shared_timed_mutex::shared_timed_mutex() +// Shared Mutex Base +__shared_mutex_base::__shared_mutex_base() : __state_(0) { } @@ -20,7 +24,7 @@ shared_timed_mutex::shared_timed_mutex() // Exclusive ownership void -shared_timed_mutex::lock() +__shared_mutex_base::lock() { unique_lock<mutex> lk(__mut_); while (__state_ & __write_entered_) @@ -31,7 +35,7 @@ shared_timed_mutex::lock() } bool -shared_timed_mutex::try_lock() +__shared_mutex_base::try_lock() { unique_lock<mutex> lk(__mut_); if (__state_ == 0) @@ -43,7 +47,7 @@ shared_timed_mutex::try_lock() } void -shared_timed_mutex::unlock() +__shared_mutex_base::unlock() { lock_guard<mutex> _(__mut_); __state_ = 0; @@ -53,7 +57,7 @@ shared_timed_mutex::unlock() // Shared ownership void -shared_timed_mutex::lock_shared() +__shared_mutex_base::lock_shared() { unique_lock<mutex> lk(__mut_); while ((__state_ & __write_entered_) || (__state_ & __n_readers_) == __n_readers_) @@ -64,7 +68,7 @@ shared_timed_mutex::lock_shared() } bool -shared_timed_mutex::try_lock_shared() +__shared_mutex_base::try_lock_shared() { unique_lock<mutex> lk(__mut_); unsigned num_readers = __state_ & __n_readers_; @@ -79,7 +83,7 @@ shared_timed_mutex::try_lock_shared() } void -shared_timed_mutex::unlock_shared() +__shared_mutex_base::unlock_shared() { lock_guard<mutex> _(__mut_); unsigned num_readers = (__state_ & __n_readers_) - 1; @@ -98,4 +102,16 @@ shared_timed_mutex::unlock_shared() } +// Shared Timed Mutex +// These routines are here for ABI stability +shared_timed_mutex::shared_timed_mutex() : __base() {} +void shared_timed_mutex::lock() { return __base.lock(); } +bool shared_timed_mutex::try_lock() { return __base.try_lock(); } +void shared_timed_mutex::unlock() { return __base.unlock(); } +void shared_timed_mutex::lock_shared() { return __base.lock_shared(); } +bool shared_timed_mutex::try_lock_shared() { return __base.try_lock_shared(); } +void shared_timed_mutex::unlock_shared() { return __base.unlock_shared(); } + _LIBCPP_END_NAMESPACE_STD + +#endif // !_LIBCPP_HAS_NO_THREADS |
