Files
rippled/modules/beast_core/thread/detail/TrackedMutex.h
2013-09-03 08:31:16 -07:00

97 lines
2.8 KiB
C++

//------------------------------------------------------------------------------
/*
This file is part of Beast: https://github.com/vinniefalco/Beast
Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================
#ifndef BEAST_CORE_THREAD_DETAIL_TRACKEDMUTEX_H_INCLUDED
#define BEAST_CORE_THREAD_DETAIL_TRACKEDMUTEX_H_INCLUDED
class TrackedMutex;
namespace detail
{
struct TrackedMutexBasics
{
struct PerThreadData;
typedef List <TrackedMutex> ThreadLockList;
typedef List <PerThreadData> GlobalThreadList;
// Retrieve an atomic counter unique to class Object
template <typename Object>
static Atomic <int>& getCounter () noexcept
{
static Atomic <int> counter;
return counter;
}
template <typename Object>
inline static String createName (String name,
char const* fileName, int lineNumber)
{
return createName (name, fileName, lineNumber,
++getCounter <Object> ());
}
static String createName (String name,
char const* fileName, int lineNumber, int instanceNumber = 0);
struct PerThreadData
: GlobalThreadList::Node
{
PerThreadData ();
int id;
int refCount;
ThreadLockList list;
CriticalSection mutex;
TrackedMutex const* blocked;
String threadName; // at the time of the block
String sourceLocation; // at the time of the block
};
// This turns the thread local into a POD which will be
// initialized to all zeroes. We use the 'id' flag to
// know to initialize.
//
struct PerThreadDataStorage
{
BEAST_ALIGN(8)
unsigned char bytes [sizeof (PerThreadData)];
};
static Atomic <int> lastThreadId;
static ThreadLocalValue <PerThreadDataStorage> threadLocal;
static PerThreadData& getPerThreadData ();
struct Lists
{
GlobalThreadList allThreads;
};
static CriticalSection& getGlobalMutex ();
static Lists& getLists ();
};
} // namespace detail
#endif