moved all stuff to github

contrib/epee/include/syncobj.h

@@ -0,0 +1,241 @@
+// Copyright (c) 2006-2013, Andrey N. Sabelnikov, www.sabelnikov.net
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the distribution.
+// * Neither the name of the Andrey N. Sabelnikov nor the
+// names of its contributors may be used to endorse or promote products
+// derived from this software without specific prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER  BE LIABLE FOR ANY
+// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// 
+
+
+
+
+#ifndef __WINH_OBJ_H__
+#define __WINH_OBJ_H__
+
+#include <condition_variable>
+#include <mutex>
+#include <boost/thread/locks.hpp>
+#include <boost/thread/mutex.hpp>
+#include <boost/thread/recursive_mutex.hpp>
+
+namespace epee
+{
+
+  struct simple_event
+  {
+    simple_event()
+    {
+      rised = false;
+    }
+    std::mutex m_mx;
+    std::condition_variable m_cond_var;
+    bool rised;
+
+    void rise()
+    {
+      std::unique_lock<std::mutex> lock(m_mx);
+      rised = true;
+      m_cond_var.notify_one();
+    }
+
+    void wait()
+    {
+      std::unique_lock<std::mutex> lock(m_mx);
+      while (!rised) 
+        m_cond_var.wait(lock);
+    }
+  };
+
+  class critical_region;
+
+  class critical_section
+  {
+    boost::recursive_mutex m_section;
+
+  public:
+    //to make copy fake!
+    critical_section(const critical_section& section)
+    {
+    }
+
+    critical_section()
+    {
+    }
+
+    ~critical_section()
+    {
+    }
+
+    void lock()
+    {
+      m_section.lock();
+      //EnterCriticalSection( &m_section );
+    }
+
+    void unlock()
+    {
+      m_section.unlock();
+    }
+
+    bool tryLock()
+    {
+      return m_section.try_lock();
+    }
+
+    // to make copy fake
+    critical_section& operator=(const critical_section& section)
+    {
+      return *this;
+    }
+  };
+
+
+  template<class t_lock>
+  class critical_region_t
+  {
+    t_lock&	m_locker;
+    bool m_unlocked;
+
+    critical_region_t(const critical_region_t&) {}
+
+  public:
+    critical_region_t(t_lock& cs): m_locker(cs), m_unlocked(false)
+    {
+      m_locker.lock();
+    }
+
+    ~critical_region_t()
+    {
+      unlock();
+    }
+
+    void unlock()
+    {
+      if (!m_unlocked)
+      {
+        m_locker.unlock();
+        m_unlocked = true;
+      }
+    }
+  };
+
+
+#if defined(WINDWOS_PLATFORM)
+  class shared_critical_section
+  {
+  public: 
+    shared_critical_section()
+    {
+      ::InitializeSRWLock(&m_srw_lock);
+    }
+    ~shared_critical_section()
+    {}
+
+    bool lock_shared()
+    {
+      AcquireSRWLockShared(&m_srw_lock);
+      return true;
+    }
+    bool unlock_shared()
+    {
+      ReleaseSRWLockShared(&m_srw_lock);
+      return true;
+    }
+    bool lock_exclusive()
+    {
+      ::AcquireSRWLockExclusive(&m_srw_lock);
+      return true;
+    }
+    bool unlock_exclusive()
+    {
+      ::ReleaseSRWLockExclusive(&m_srw_lock);
+      return true;
+    }
+  private:
+    SRWLOCK m_srw_lock;
+  };
+
+
+  class shared_guard
+  {
+  public:
+    shared_guard(shared_critical_section& ref_sec):m_ref_sec(ref_sec)
+    {
+      m_ref_sec.lock_shared();
+    }
+
+    ~shared_guard()
+    {
+      m_ref_sec.unlock_shared();
+    }
+
+  private:
+    shared_critical_section& m_ref_sec;
+  };
+
+
+  class exclusive_guard
+  {
+  public:
+    exclusive_guard(shared_critical_section& ref_sec):m_ref_sec(ref_sec)
+    {
+      m_ref_sec.lock_exclusive();
+    }
+
+    ~exclusive_guard()
+    {
+      m_ref_sec.unlock_exclusive();
+    }
+
+  private:
+    shared_critical_section& m_ref_sec;
+  };
+#endif
+
+#define  SHARED_CRITICAL_REGION_BEGIN(x) { shared_guard   critical_region_var(x)
+#define  EXCLUSIVE_CRITICAL_REGION_BEGIN(x) { exclusive_guard   critical_region_var(x)
+
+#define  CRITICAL_REGION_LOCAL(x) epee::critical_region_t<decltype(x)>   critical_region_var(x)
+#define  CRITICAL_REGION_BEGIN(x) { epee::critical_region_t<decltype(x)>   critical_region_var(x)
+#define  CRITICAL_REGION_LOCAL1(x) epee::critical_region_t<decltype(x)>   critical_region_var1(x)
+#define  CRITICAL_REGION_BEGIN1(x) { epee::critical_region_t<decltype(x)>   critical_region_var1(x)
+
+#define  CRITICAL_REGION_END() }
+
+
+#if defined(WINDWOS_PLATFORM)
+  inline const char* get_wait_for_result_as_text(DWORD res)
+  {
+    switch(res)
+    {
+    case WAIT_ABANDONED:  return "WAIT_ABANDONED";
+    case WAIT_TIMEOUT:    return "WAIT_TIMEOUT";
+    case WAIT_OBJECT_0:   return "WAIT_OBJECT_0";
+    case WAIT_OBJECT_0+1: return "WAIT_OBJECT_1";
+    case WAIT_OBJECT_0+2: return "WAIT_OBJECT_2";
+    default:              return "UNKNOWN CODE";
+    }
+  }
+#endif
+
+}
+
+#endif