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noexcept and constexpr applied to <mutex>.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@160604 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Howard Hinnant
2012-07-21 16:13:09 +00:00
parent 46623a09ee
commit 499c61f999
4 changed files with 65 additions and 54 deletions
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17
src/mutex.cpp
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@@ -7,6 +7,7 @@
//
//===----------------------------------------------------------------------===//
#define _LIBCPP_BUILDING_MUTEX
#include "mutex"
#include "limits"
#include "system_error"
@@ -32,13 +33,13 @@ mutex::lock()
}
bool
mutex::try_lock()
mutex::try_lock() _NOEXCEPT
{
return pthread_mutex_trylock(&__m_) == 0;
}
void
mutex::unlock()
mutex::unlock() _NOEXCEPT
{
int ec = pthread_mutex_unlock(&__m_);
assert(ec == 0);
@@ -90,14 +91,14 @@ recursive_mutex::lock()
}
void
recursive_mutex::unlock()
recursive_mutex::unlock() _NOEXCEPT
{
int e = pthread_mutex_unlock(&__m_);
assert(e == 0);
}
bool
recursive_mutex::try_lock()
recursive_mutex::try_lock() _NOEXCEPT
{
return pthread_mutex_trylock(&__m_) == 0;
}
@@ -124,7 +125,7 @@ timed_mutex::lock()
}
bool
timed_mutex::try_lock()
timed_mutex::try_lock() _NOEXCEPT
{
unique_lock<mutex> lk(__m_, try_to_lock);
if (lk.owns_lock() && !__locked_)
@@ -136,7 +137,7 @@ timed_mutex::try_lock()
}
void
timed_mutex::unlock()
timed_mutex::unlock() _NOEXCEPT
{
lock_guard<mutex> _(__m_);
__locked_ = false;
@@ -175,7 +176,7 @@ recursive_timed_mutex::lock()
}
bool
recursive_timed_mutex::try_lock()
recursive_timed_mutex::try_lock() _NOEXCEPT
{
pthread_t id = pthread_self();
unique_lock<mutex> lk(__m_, try_to_lock);
@@ -191,7 +192,7 @@ recursive_timed_mutex::try_lock()
}
void
recursive_timed_mutex::unlock()
recursive_timed_mutex::unlock() _NOEXCEPT
{
unique_lock<mutex> lk(__m_);
if (--__count_ == 0)