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| author | Tobias Markmann <tm@ayena.de> | 2014-10-19 20:22:58 (GMT) |
|---|---|---|
| committer | Tobias Markmann <tm@ayena.de> | 2014-10-20 13:49:33 (GMT) |
| commit | 6b22dfcf59474dd016a0355a3102a1dd3692d92c (patch) | |
| tree | 2b1fd33be433a91e81fee84fdc2bf1b52575d934 /3rdParty/Boost/src/boost/asio/detail/posix_event.hpp | |
| parent | 38b0cb785fea8eae5e48fae56440695fdfd10ee1 (diff) | |
| download | swift-6b22dfcf59474dd016a0355a3102a1dd3692d92c.zip swift-6b22dfcf59474dd016a0355a3102a1dd3692d92c.tar.bz2 | |
Update Boost in 3rdParty to version 1.56.0.
This updates Boost in our 3rdParty directory to version 1.56.0.
Updated our update.sh script to stop on error.
Changed error reporting in SwiftTools/CrashReporter.cpp to SWIFT_LOG due to
missing include of <iostream> with newer Boost.
Change-Id: I4b35c77de951333979a524097f35f5f83d325edc
Diffstat (limited to '3rdParty/Boost/src/boost/asio/detail/posix_event.hpp')
| -rw-r--r-- | 3rdParty/Boost/src/boost/asio/detail/posix_event.hpp | 64 |
1 files changed, 46 insertions, 18 deletions
diff --git a/3rdParty/Boost/src/boost/asio/detail/posix_event.hpp b/3rdParty/Boost/src/boost/asio/detail/posix_event.hpp index b77f384..9b633af 100644 --- a/3rdParty/Boost/src/boost/asio/detail/posix_event.hpp +++ b/3rdParty/Boost/src/boost/asio/detail/posix_event.hpp @@ -2,7 +2,7 @@ // detail/posix_event.hpp // ~~~~~~~~~~~~~~~~~~~~~~ // -// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2014 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) @@ -17,10 +17,10 @@ #include <boost/asio/detail/config.hpp> -#if defined(BOOST_HAS_PTHREADS) && !defined(BOOST_ASIO_DISABLE_THREADS) +#if defined(BOOST_ASIO_HAS_PTHREADS) -#include <boost/assert.hpp> #include <pthread.h> +#include <boost/asio/detail/assert.hpp> #include <boost/asio/detail/noncopyable.hpp> #include <boost/asio/detail/push_options.hpp> @@ -42,47 +42,75 @@ public: ::pthread_cond_destroy(&cond_); } - // Signal the event. + // Signal the event. (Retained for backward compatibility.) template <typename Lock> void signal(Lock& lock) { - BOOST_ASSERT(lock.locked()); + this->signal_all(lock); + } + + // Signal all waiters. + template <typename Lock> + void signal_all(Lock& lock) + { + BOOST_ASIO_ASSERT(lock.locked()); (void)lock; - signalled_ = true; - ::pthread_cond_signal(&cond_); // Ignore EINVAL. + state_ |= 1; + ::pthread_cond_broadcast(&cond_); // Ignore EINVAL. } - // Signal the event and unlock the mutex. + // Unlock the mutex and signal one waiter. template <typename Lock> - void signal_and_unlock(Lock& lock) + void unlock_and_signal_one(Lock& lock) { - BOOST_ASSERT(lock.locked()); - signalled_ = true; + BOOST_ASIO_ASSERT(lock.locked()); + state_ |= 1; + bool have_waiters = (state_ > 1); lock.unlock(); - ::pthread_cond_signal(&cond_); // Ignore EINVAL. + if (have_waiters) + ::pthread_cond_signal(&cond_); // Ignore EINVAL. + } + + // If there's a waiter, unlock the mutex and signal it. + template <typename Lock> + bool maybe_unlock_and_signal_one(Lock& lock) + { + BOOST_ASIO_ASSERT(lock.locked()); + state_ |= 1; + if (state_ > 1) + { + lock.unlock(); + ::pthread_cond_signal(&cond_); // Ignore EINVAL. + return true; + } + return false; } // Reset the event. template <typename Lock> void clear(Lock& lock) { - BOOST_ASSERT(lock.locked()); + BOOST_ASIO_ASSERT(lock.locked()); (void)lock; - signalled_ = false; + state_ &= ~std::size_t(1); } // Wait for the event to become signalled. template <typename Lock> void wait(Lock& lock) { - BOOST_ASSERT(lock.locked()); - while (!signalled_) + BOOST_ASIO_ASSERT(lock.locked()); + while ((state_ & 1) == 0) + { + state_ += 2; ::pthread_cond_wait(&cond_, &lock.mutex().mutex_); // Ignore EINVAL. + state_ -= 2; + } } private: ::pthread_cond_t cond_; - bool signalled_; + std::size_t state_; }; } // namespace detail @@ -95,6 +123,6 @@ private: # include <boost/asio/detail/impl/posix_event.ipp> #endif // defined(BOOST_ASIO_HEADER_ONLY) -#endif // defined(BOOST_HAS_PTHREADS) && !defined(BOOST_ASIO_DISABLE_THREADS) +#endif // defined(BOOST_ASIO_HAS_PTHREADS) #endif // BOOST_ASIO_DETAIL_POSIX_EVENT_HPP |