Panda3D
panda
src
pipeline
mutexDebug.h
Go to the documentation of this file.
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file mutexDebug.h
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* @author drose
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* @date 2006-02-13
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*/
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#ifndef MUTEXDEBUG_H
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#define MUTEXDEBUG_H
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#include "
pandabase.h
"
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#include "
mutexTrueImpl.h
"
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#include "
conditionVarImpl.h
"
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#include "
thread.h
"
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#include "
namable.h
"
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#include "
pmap.h
"
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#ifdef DEBUG_THREADS
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/**
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* This class implements a standard mutex the hard way, by doing everything by
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* hand. This does allow fancy things like deadlock detection, however.
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*/
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class
EXPCL_PANDA_PIPELINE MutexDebug :
public
Namable
{
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protected
:
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MutexDebug(
const
std::string &name,
bool
allow_recursion,
bool
lightweight);
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MutexDebug(
const
MutexDebug ©) =
delete
;
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virtual
~MutexDebug();
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void
operator = (
const
MutexDebug ©) =
delete
;
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public
:
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INLINE
void
lock();
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INLINE
bool
try_lock();
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INLINE
void
unlock();
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PUBLISHED:
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BLOCKING INLINE
void
acquire(
Thread
*current_thread =
Thread::get_current_thread
())
const
;
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BLOCKING INLINE
bool
try_acquire(
Thread
*current_thread =
Thread::get_current_thread
())
const
;
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INLINE
void
elevate_lock()
const
;
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INLINE
void
release()
const
;
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INLINE
bool
debug_is_locked()
const
;
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virtual
void
output
(std::ostream &out)
const
;
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void
output_with_holder(std::ostream &out)
const
;
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typedef
void
VoidFunc();
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public
:
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static
void
increment_pstats();
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static
void
decrement_pstats();
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private
:
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void
do_lock(
Thread
*current_thread);
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bool
do_try_lock(
Thread
*current_thread);
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void
do_unlock();
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bool
do_debug_is_locked()
const
;
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void
report_deadlock(
Thread
*current_thread);
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private
:
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INLINE
static
MutexTrueImpl
*get_global_lock();
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bool
_allow_recursion;
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bool
_lightweight;
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Thread
*_locking_thread;
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int
_lock_count;
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char
*_deleted_name;
// To help I.D. a destructed mutex.
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// For _lightweight mutexes.
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typedef
pmap<Thread *, int>
MissedThreads;
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MissedThreads _missed_threads;
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ConditionVarImpl _cvar_impl;
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static
int
_pstats_count;
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static
MutexTrueImpl
*_global_lock;
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friend
class
ConditionVarDebug;
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friend
class
ConditionVarFullDebug;
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};
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INLINE std::ostream &
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operator << (std::ostream &out,
const
MutexDebug &m) {
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m.output(out);
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return
out;
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}
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#include "
mutexDebug.I
"
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#endif // DEBUG_THREADS
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#endif
pandabase.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
pmap
This is our own Panda specialization on the default STL map.
Definition:
pmap.h:49
mutexDebug.I
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
mutexTrueImpl.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
Thread::get_current_thread
get_current_thread
Returns a pointer to the currently-executing Thread object.
Definition:
thread.h:109
pmap.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
namable.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
conditionVarImpl.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
Namable::output
void output(std::ostream &out) const
Outputs the Namable.
Definition:
namable.I:61
MutexDummyImpl
A fake mutex implementation for single-threaded applications that don't need any synchronization cont...
Definition:
mutexDummyImpl.h:24
Namable
A base class for all things which can have a name.
Definition:
namable.h:26
Thread
A thread; that is, a lightweight process.
Definition:
thread.h:46
thread.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
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