version 1.5, 2001/12/25 08:26:09
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version 1.61, 2008/03/20 01:06:41
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//%///////////-*-c++-*-////////////////////////////////////////////////////// |
//%2006//////////////////////////////////////////////////////////////////////// |
// | // |
// Copyright (c) 2000, 2001 The Open group, BMC Software, Tivoli Systems, IBM |
// Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development |
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// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems. |
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// Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.; |
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// IBM Corp.; EMC Corporation, The Open Group. |
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// Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.; |
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// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group. |
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// Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.; |
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// EMC Corporation; VERITAS Software Corporation; The Open Group. |
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// Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.; |
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// EMC Corporation; Symantec Corporation; The Open Group. |
// | // |
// Permission is hereby granted, free of charge, to any person obtaining a copy | // Permission is hereby granted, free of charge, to any person obtaining a copy |
// of this software and associated documentation files (the "Software"), to | // of this software and associated documentation files (the "Software"), to |
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// | // |
//============================================================================== | //============================================================================== |
// | // |
// Author: Mike Day (mdday@us.ibm.com) |
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// |
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// Modified By: Markus Mueller |
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// |
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//%///////////////////////////////////////////////////////////////////////////// | //%///////////////////////////////////////////////////////////////////////////// |
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#ifndef Pegasus_Thread_h | #ifndef Pegasus_Thread_h |
#define Pegasus_Thread_h | #define Pegasus_Thread_h |
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#include <cstring> |
#include <Pegasus/Common/Config.h> | #include <Pegasus/Common/Config.h> |
#include <Pegasus/Common/IPC.h> |
#include <Pegasus/Common/AtomicInt.h> |
#include <Pegasus/Common/Exception.h> |
#include <Pegasus/Common/InternalException.h> |
#include <Pegasus/Common/DQueue.h> |
#include <Pegasus/Common/AcceptLanguageList.h> |
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#include <Pegasus/Common/Linkage.h> |
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#include <Pegasus/Common/AutoPtr.h> |
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#include <Pegasus/Common/List.h> |
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#include <Pegasus/Common/Mutex.h> |
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#include <Pegasus/Common/Semaphore.h> |
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#include <Pegasus/Common/TSDKey.h> |
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#include <Pegasus/Common/Threads.h> |
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// REVIEW: Spend time getting to know this. |
#if defined(PEGASUS_HAVE_PTHREADS) |
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# include <signal.h> |
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#endif |
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PEGASUS_NAMESPACE_BEGIN | PEGASUS_NAMESPACE_BEGIN |
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class PEGASUS_COMMON_LINKAGE cleanup_handler |
class PEGASUS_COMMON_LINKAGE cleanup_handler : public Linkable |
{ | { |
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public: | public: |
cleanup_handler( void (*routine)(void *), void *arg ) : _routine(routine), _arg(arg) {} |
cleanup_handler(void (*routine) (void *), void *arg):_routine(routine), |
~cleanup_handler() {; } |
_arg(arg) |
inline Boolean operator==(const void *key) const |
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{ | { |
if(key == (void *)_routine) |
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return true; |
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return false; |
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} | } |
inline Boolean operator ==(const cleanup_handler & b) const |
~cleanup_handler() |
{ |
{; |
return(operator==((const void *)b._routine)); |
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} | } |
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private: | private: |
void execute(void) { _routine(_arg); } |
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void execute() |
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{ |
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_routine(_arg); |
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} |
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cleanup_handler(); | cleanup_handler(); |
void (*_routine)(void *); |
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void (*_routine)(void*); |
void *_arg; | void *_arg; |
PEGASUS_CLEANUP_HANDLE _cleanup_buffer; |
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friend class DQueue<class cleanup_handler>; |
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friend class Thread; | friend class Thread; |
}; | }; |
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/////////////////////////////////////////////////////////////////////////////// | /////////////////////////////////////////////////////////////////////////////// |
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class PEGASUS_COMMON_LINKAGE thread_data : public Linkable |
class PEGASUS_COMMON_LINKAGE thread_data |
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{ | { |
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public: | public: |
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static void default_delete(void *data); | static void default_delete(void *data); |
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thread_data( Sint8 *key ) : _delete_func(NULL) , _data(NULL), _size(0) |
thread_data(const char *key) : _delete_func(NULL), _data(NULL), _size(0) |
{ | { |
PEGASUS_ASSERT(key != NULL); | PEGASUS_ASSERT(key != NULL); |
size_t keysize = strlen(key); | size_t keysize = strlen(key); |
_key = new Sint8 [keysize + 1]; |
_key.reset(new char[keysize + 1]); |
memcpy(_key, key, keysize); |
memcpy(_key.get(), key, keysize); |
_key[keysize] = 0x00; |
_key.get()[keysize] = 0x00; |
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} | } |
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thread_data(Sint8 *key, size_t size) : _delete_func(default_delete), _size(size) |
thread_data(const char *key, size_t size) : |
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_delete_func(default_delete), _size(size) |
{ | { |
PEGASUS_ASSERT(key != NULL); | PEGASUS_ASSERT(key != NULL); |
size_t keysize = strlen(key); | size_t keysize = strlen(key); |
_key = new Sint8 [keysize + 1]; |
_key.reset(new char[keysize + 1]); |
memcpy(_key, key, keysize); |
memcpy(_key.get(), key, keysize); |
_key[keysize] = 0x00; |
_key.get()[keysize] = 0x00; |
_data = ::operator new(_size) ; | _data = ::operator new(_size) ; |
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} | } |
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thread_data(Sint8 *key, size_t size, void *data) : _delete_func(default_delete), _size(size) |
thread_data(const char *key, size_t size, void *data) |
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: _delete_func(default_delete), _size(size) |
{ | { |
PEGASUS_ASSERT(key != NULL); | PEGASUS_ASSERT(key != NULL); |
PEGASUS_ASSERT(data != NULL); | PEGASUS_ASSERT(data != NULL); |
size_t keysize = strlen(key); | size_t keysize = strlen(key); |
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_key = new Sint8[keysize + 1]; |
_key.reset(new char[keysize + 1]); |
memcpy(_key, key, keysize); |
memcpy(_key.get(), key, keysize); |
_key[keysize] = 0x00; |
_key.get()[keysize] = 0x00; |
_data = ::operator new(_size); | _data = ::operator new(_size); |
memcpy(_data, data, size); | memcpy(_data, data, size); |
} | } |
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{ | { |
if( _data != NULL) | if( _data != NULL) |
if(_delete_func != NULL) | if(_delete_func != NULL) |
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{ |
_delete_func( _data ); | _delete_func( _data ); |
if( _key != NULL ) |
} |
delete [] _key; |
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} | } |
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void put_data(void (*del)(void *), size_t size, void *data ) throw(NullPointer) |
/** |
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* This function is used to put data in thread space. |
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* |
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* Be aware that there is NOTHING in place to stop |
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* other users of the thread to remove this data. |
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* Or change the data. |
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* |
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* You, the developer has to make sure that there are |
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* no situations in which this can arise (ie, have a |
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* lock for the function which manipulates the TSD. |
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* |
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* @exception NullPointer |
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*/ |
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void put_data(void (*del) (void *), size_t size, void* data) |
{ | { |
if(_data != NULL) | if(_data != NULL) |
if(_delete_func != NULL) | if(_delete_func != NULL) |
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return ; | return ; |
} | } |
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size_t get_size(void) { return _size; } |
size_t get_size() |
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{ |
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return _size; |
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} |
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/** |
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This function is used to retrieve data from the |
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TSD, the thread specific data. |
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Be aware that there is NOTHING in place to stop |
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other users of the thread to change the data you |
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get from this function. |
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You, the developer has to make sure that there are |
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no situations in which this can arise (ie, have a |
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lock for the function which manipulates the TSD. |
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*/ |
void get_data(void **data, size_t *size) | void get_data(void **data, size_t *size) |
{ | { |
if(data == NULL || size == NULL) | if(data == NULL || size == NULL) |
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*data = _data; | *data = _data; |
*size = _size; | *size = _size; |
return; |
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} | } |
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void copy_data(void **buf, size_t *size) throw(BufferTooSmall, NullPointer) |
// @exception NullPointer |
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void copy_data(void** buf, size_t* size) |
{ | { |
if((buf == NULL) || (size == NULL)) | if((buf == NULL) || (size == NULL)) |
throw NullPointer() ; | throw NullPointer() ; |
*buf = ::operator new(_size); | *buf = ::operator new(_size); |
*size = _size; | *size = _size; |
memcpy(*buf, _data, _size); | memcpy(*buf, _data, _size); |
return; |
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} | } |
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inline Boolean operator==(const void *key) const | inline Boolean operator==(const void *key) const |
{ | { |
if ( ! strcmp(_key, (Sint8 *)key)) |
if (!strcmp(_key.get(), reinterpret_cast < const char *>(key))) |
return(true); |
return true; |
return(false); |
return false; |
} | } |
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inline Boolean operator==(const thread_data& b) const | inline Boolean operator==(const thread_data& b) const |
{ | { |
return(operator==((const void *)b._key)); |
return operator==(b._key.get()); |
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} |
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static bool equal(const thread_data* node, const void* key) |
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{ |
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return ((thread_data *) node)->operator==(key); |
} | } |
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private: | private: |
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thread_data(); | thread_data(); |
void *_data; | void *_data; |
size_t _size; | size_t _size; |
Sint8 *_key; |
AutoArrayPtr<char> _key; |
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friend class DQueue<thread_data>; |
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friend class Thread; | friend class Thread; |
}; | }; |
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/////////////////////////////////////////////////////////////////////////// |
enum ThreadStatus |
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{ |
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PEGASUS_THREAD_OK = 1, /* No problems */ |
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PEGASUS_THREAD_INSUFFICIENT_RESOURCES, /* Can't allocate a thread. |
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Not enough memory. Try |
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again later */ |
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PEGASUS_THREAD_SETUP_FAILURE, /* Could not allocate into the thread |
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specific data storage. */ |
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PEGASUS_THREAD_UNAVAILABLE /* Service is being destroyed and no new |
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threads can be provided. */ |
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}; |
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class PEGASUS_COMMON_LINKAGE ThreadPool; |
/////////////////////////////////////////////////////////////////////////// |
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class PEGASUS_COMMON_LINKAGE Thread |
class PEGASUS_COMMON_LINKAGE Thread : public Linkable |
{ | { |
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public: | public: |
Thread( PEGASUS_THREAD_RETURN (PEGASUS_THREAD_CDECL *start )(void *), |
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void *parameter, Boolean detached ); |
Thread( |
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ThreadReturnType(PEGASUS_THREAD_CDECL* start) (void*), |
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void* parameter, |
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Boolean detached); |
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~Thread(); | ~Thread(); |
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void run(void); |
/** Start the thread. |
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@return PEGASUS_THREAD_OK if the thread is started successfully, |
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PEGASUS_THREAD_INSUFFICIENT_RESOURCES if the resources necessary |
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to start the thread are not currently available. |
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PEGASUS_THREAD_SETUP_FAILURE if the thread could not |
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be create properly - check the 'errno' value for specific operating |
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system return code. |
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*/ |
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ThreadStatus run(); |
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// get the user parameter | // get the user parameter |
inline void *get_parm(void) { return _thread_parm; } |
inline void *get_parm() |
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{ |
// send the thread a signal -- may not be appropriate due to Windows |
return _thread_parm; |
// void kill(int signum); |
} |
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// cancellation must be deferred (not asynchronous) | // cancellation must be deferred (not asynchronous) |
// for user-level threads the thread itself can decide | // for user-level threads the thread itself can decide |
// when it should die. | // when it should die. |
void cancel(void); |
void cancel(); |
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// cancel if there is a pending cancellation request |
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void test_cancel(void); |
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Boolean is_cancelled(void); |
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// for user-level threads - put the calling thread | // for user-level threads - put the calling thread |
// to sleep and jump to the thread scheduler. | // to sleep and jump to the thread scheduler. |
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// or gnu portable threads will have an existing | // or gnu portable threads will have an existing |
// routine that can be mapped to this method | // routine that can be mapped to this method |
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void thread_switch(void); |
void thread_switch(); |
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#ifdef PEGASUS_PLATFORM_LINUX_IX86_GNU |
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// suspend this thread |
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void suspend(void) ; |
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// resume this thread |
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void resume(void) ; |
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#endif |
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static void sleep(Uint32 msec) ; | static void sleep(Uint32 msec) ; |
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// block the calling thread until this thread terminates | // block the calling thread until this thread terminates |
void join( void ); |
void join(); |
void thread_init(void); |
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// thread routine needs to call this function when | // thread routine needs to call this function when |
// it is ready to exit | // it is ready to exit |
void exit_self(PEGASUS_THREAD_RETURN return_code) ; |
void exit_self(ThreadReturnType return_code); |
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// stack of functions to be called when thread terminates | // stack of functions to be called when thread terminates |
// will be called last in first out (LIFO) | // will be called last in first out (LIFO) |
void cleanup_push( void (*routine) (void *), void *parm ) throw(IPCException); |
// @exception IPCException |
void cleanup_pop(Boolean execute = true) throw(IPCException); |
void cleanup_push(void (*routine) (void *), void* parm); |
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// @exception IPCException |
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void cleanup_pop(Boolean execute = true); |
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// create and initialize a tsd | // create and initialize a tsd |
inline void create_tsd(Sint8 *key, int size, void *buffer) throw(IPCException) |
// @exception IPCException |
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inline void create_tsd(const char* key, int size, void* buffer) |
{ | { |
thread_data *tsd = new thread_data(key, size, buffer); |
AutoPtr<thread_data> tsd(new thread_data(key, size, buffer)); |
try { _tsd.insert_first(tsd); } |
_tsd.insert_front(tsd.get()); |
catch(IPCException& e) { e = e; delete tsd; throw; } |
tsd.release(); |
} | } |
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// get the buffer associated with the key | // get the buffer associated with the key |
// NOTE: this call leaves the tsd LOCKED !!!! | // NOTE: this call leaves the tsd LOCKED !!!! |
inline void *reference_tsd(Sint8 *key) throw(IPCException) |
// @exception IPCException |
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inline void *reference_tsd(const char* key) |
{ | { |
_tsd.lock(); | _tsd.lock(); |
thread_data *tsd = _tsd.reference((void *)key); |
thread_data *tsd = _tsd.find(thread_data::equal, key); |
if(tsd != NULL) | if(tsd != NULL) |
return( (void *)(tsd->_data) ); |
return (void *) (tsd->_data); |
else | else |
return(NULL); |
return NULL; |
} | } |
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inline void *try_reference_tsd(Sint8 *key) throw(IPCException) |
// @exception IPCException |
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inline void *try_reference_tsd(const char *key) |
{ | { |
_tsd.try_lock(); | _tsd.try_lock(); |
thread_data *tsd = _tsd.reference((void *)key); |
thread_data *tsd = _tsd.find(thread_data::equal, key); |
if(tsd != NULL) | if(tsd != NULL) |
return((void *)(tsd->_data) ); |
return (void *) (tsd->_data); |
else | else |
return(NULL); |
return NULL; |
} | } |
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// release the lock held on the tsd | // release the lock held on the tsd |
// NOTE: assumes a corresponding and prior call to reference_tsd() !!! | // NOTE: assumes a corresponding and prior call to reference_tsd() !!! |
inline void dereference_tsd(void) throw(IPCException) |
// @exception IPCException |
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inline void dereference_tsd() |
{ | { |
_tsd.unlock(); | _tsd.unlock(); |
} | } |
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// delete the tsd associated with the key | // delete the tsd associated with the key |
inline void delete_tsd(Sint8 *key) throw(IPCException) |
// @exception IPCException |
{ |
inline void delete_tsd(const char *key) |
thread_data *tsd = _tsd.remove((void *)key); |
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if(tsd != NULL) |
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delete tsd; |
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} |
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inline void *remove_tsd(Sint8 *key) throw(IPCException) |
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{ | { |
return(_tsd.remove((void *)key)); |
AutoPtr < thread_data > tsd(_tsd.remove(thread_data::equal, key)); |
} | } |
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inline void empty_tsd(void) throw(IPCException) |
// @exception IPCException |
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inline void empty_tsd() |
{ | { |
_tsd.empty_list(); |
_tsd.clear(); |
} | } |
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// create or re-initialize tsd associated with the key | // create or re-initialize tsd associated with the key |
// if the tsd already exists, return the existing buffer |
// if the tsd already exists, delete the existing buffer |
thread_data *put_tsd(Sint8 *key, void (*delete_func)(void *), Uint32 size, void *value) |
// @exception IPCException |
throw(IPCException) |
void put_tsd( |
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const char* key, |
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void (*delete_func) (void *), |
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Uint32 size, |
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void* value) |
{ | { |
PEGASUS_ASSERT(key != NULL); | PEGASUS_ASSERT(key != NULL); |
thread_data *tsd ; |
AutoPtr<thread_data> tsd; |
tsd = _tsd.remove((void *)key); // may throw an IPC exception |
// This may throw an IPCException |
thread_data *ntsd = new thread_data(key); |
tsd.reset(_tsd.remove(thread_data::equal, key)); |
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tsd.reset(); |
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AutoPtr<thread_data> ntsd(new thread_data(key)); |
ntsd->put_data(delete_func, size, value); | ntsd->put_data(delete_func, size, value); |
try { _tsd.insert_first(ntsd); } |
// This may throw an IPCException |
catch(IPCException& e) { e = e; delete ntsd; throw; } |
_tsd.insert_front(ntsd.get()); |
return(tsd); |
ntsd.release(); |
} | } |
inline PEGASUS_THREAD_RETURN get_exit(void) { return _exit_code; } |
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inline PEGASUS_THREAD_TYPE self(void) {return pegasus_thread_self(); } |
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PEGASUS_THREAD_HANDLE getThreadHandle() {return _handle;} |
inline ThreadReturnType get_exit() |
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inline Boolean operator==(const void *key) const |
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{ | { |
if ( (void *)this == key) |
return _exit_code; |
return(true); |
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return(false); |
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} | } |
inline Boolean operator==(const Thread & b) const |
inline ThreadType self() |
{ | { |
return(operator==((const void *)&b )); |
return Threads::self(); |
} | } |
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void detach(void); |
ThreadHandle getThreadHandle() |
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private: |
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Thread(); |
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inline void create_tsd(Sint8 *key ) throw(IPCException) |
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{ | { |
thread_data *tsd = new thread_data(key); |
return _handle; |
try { _tsd.insert_first(tsd); } |
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catch(IPCException& e) { e = e; delete tsd; throw; } |
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} | } |
PEGASUS_THREAD_HANDLE _handle; |
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Boolean _is_detached; |
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Boolean _cancel_enabled; |
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Boolean _cancelled; |
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PEGASUS_SEM_HANDLE _suspend_count; |
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// always pass this * as the void * parameter to the thread |
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// store the user parameter in _thread_parm |
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PEGASUS_THREAD_RETURN ( PEGASUS_THREAD_CDECL *_start)(void *) ; |
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DQueue<class cleanup_handler> _cleanup; |
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DQueue<class thread_data> _tsd; |
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void *_thread_parm; |
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PEGASUS_THREAD_RETURN _exit_code; |
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static Boolean _signals_blocked; |
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friend class ThreadPool; |
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} ; |
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class PEGASUS_COMMON_LINKAGE ThreadPool |
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{ |
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public: |
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ThreadPool(Sint16 initial_size, |
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Sint8 *key, |
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Sint16 min, |
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Sint16 max, |
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struct timeval & alloc_wait, |
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struct timeval & dealloc_wait, |
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struct timeval & deadlock_detect); |
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~ThreadPool(void); |
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void allocate_and_awaken(void *parm, |
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PEGASUS_THREAD_RETURN (PEGASUS_THREAD_CDECL *work)(void *)) |
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throw(IPCException); |
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void kill_dead_threads( void ) |
void detach(); |
throw(IPCException); |
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void get_key(Sint8 *buf, int bufsize); |
// |
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// Gets the Thread object associated with the caller's thread. |
inline Boolean operator==(const void *key) const |
// Note: this may return NULL if no Thread object is associated |
{ |
// with the caller's thread. |
if ( ! strncmp( reinterpret_cast<Sint8 *>(const_cast<void *>(key)), _key, 16 )) |
// |
return(true); |
static Thread *getCurrent(); |
return(false); |
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} |
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inline Boolean operator==(const ThreadPool & b) const |
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{ |
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return(operator==((const void *) b._key )); |
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} |
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inline void set_min_threads(Sint16 min) |
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{ |
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_min_threads = min; |
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} |
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inline Sint16 get_min_threads(void) const |
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{ |
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return _min_threads; |
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} |
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inline void set_max_threads(Sint16 max) |
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{ |
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_max_threads = max; |
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} |
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inline Sint16 get_max_threads(void) const |
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{ |
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return _max_threads; |
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} |
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inline void set_allocate_wait(const struct timeval & alloc_wait) |
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{ |
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_allocate_wait.tv_sec = alloc_wait.tv_sec; |
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_allocate_wait.tv_usec = alloc_wait.tv_usec; |
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} |
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inline struct timeval *get_allocate_wait(struct timeval *buffer) const |
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{ |
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if(buffer == 0) |
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throw NullPointer(); |
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buffer->tv_sec = _allocate_wait.tv_sec; |
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buffer->tv_usec = _allocate_wait.tv_usec; |
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return buffer; |
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} |
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inline void set_deallocate_wait(const struct timeval & dealloc_wait) |
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{ |
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_deallocate_wait.tv_sec = dealloc_wait.tv_sec; |
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_deallocate_wait.tv_usec = dealloc_wait.tv_usec; |
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} |
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inline struct timeval *get_deallocate_wait(struct timeval *buffer) const |
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{ |
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if(buffer == 0) |
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throw NullPointer(); |
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buffer->tv_sec = _deallocate_wait.tv_sec; |
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buffer->tv_usec = _deallocate_wait.tv_usec; |
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return buffer; |
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} |
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inline void set_deadlock_detect(const struct timeval & deadlock) |
// |
{ |
// Sets the Thread object associated with the caller's thread. |
_deadlock_detect.tv_sec = deadlock.tv_sec; |
// Note: the Thread object must be placed on the heap. |
_deadlock_detect.tv_usec = deadlock.tv_usec; |
// |
} |
static void setCurrent(Thread* thrd); |
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inline struct timeval * get_deadlock_detect(struct timeval *buffer) const |
// |
{ |
// Gets the AcceptLanguageList object associated with the caller's |
if(buffer == 0) |
// Thread. |
throw NullPointer(); |
// Note: this may return NULL if no Thread object, or no |
buffer->tv_sec = _deadlock_detect.tv_sec; |
// AcceptLanguageList object, is associated with the caller's thread. |
buffer->tv_usec = _deadlock_detect.tv_usec; |
// |
return buffer; |
static AcceptLanguageList* getLanguages(); |
} |
|
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inline Uint32 running_count(void) |
// |
{ |
// Sets the AcceptLanguageList object associated with the caller's |
return _running.count(); |
// Thread. |
} |
// Note: a Thread object must have been previously associated with |
|
// the caller's thread. |
|
// |
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static void setLanguages(const AcceptLanguageList& langs); |
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static Boolean check_time(struct timeval *start, struct timeval *interval); |
// |
|
// Removes the AcceptLanguageList object associated with the caller's |
|
// Thread. |
|
// |
|
static void clearLanguages(); |
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private: | private: |
ThreadPool(void); |
Thread(); |
Sint16 _max_threads; |
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Sint16 _min_threads; |
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AtomicInt _current_threads; |
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struct timeval _allocate_wait; |
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struct timeval _deallocate_wait; |
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struct timeval _deadlock_detect; |
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static PEGASUS_THREAD_RETURN PEGASUS_THREAD_CDECL _loop(void *); |
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Semaphore _waiters; |
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Sint8 _key[17]; |
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Semaphore _pool_sem; |
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DQueue<Thread> _pool; |
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DQueue<Thread> _running; |
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DQueue<Thread> _dead; |
|
AtomicInt _dying; |
|
|
|
|
|
static void _sleep_sem_del(void *p); |
|
|
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void _check_deadlock(struct timeval *start) throw(Deadlock); |
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Boolean _check_deadlock_no_throw(struct timeval *start); |
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Boolean _check_dealloc(struct timeval *start); |
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Thread *_init_thread(void) throw(IPCException); |
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void _link_pool(Thread *th) throw(IPCException); |
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static PEGASUS_THREAD_RETURN _undertaker(void *); |
|
|
|
}; |
|
|
|
|
|
inline void ThreadPool::_sleep_sem_del(void *p) |
|
{ |
|
if(p != 0) |
|
{ |
|
delete (Semaphore *)p; |
|
} |
|
} |
|
|
|
inline void ThreadPool::_check_deadlock(struct timeval *start) throw(Deadlock) |
|
{ |
|
if (true == check_time(start, &_deadlock_detect)) |
|
throw Deadlock(pegasus_thread_self()); |
|
return; |
|
} |
|
|
|
| |
inline Boolean ThreadPool::_check_deadlock_no_throw(struct timeval *start) |
static Sint8 initializeKey(); |
{ |
|
return(check_time(start, &_deadlock_detect)); |
|
} |
|
| |
inline Boolean ThreadPool::_check_dealloc(struct timeval *start) |
// @exception IPCException |
|
inline void create_tsd(const char *key) |
{ | { |
return(check_time(start, &_deallocate_wait)); |
AutoPtr<thread_data> tsd(new thread_data(key)); |
|
_tsd.insert_front(tsd.get()); |
|
tsd.release(); |
} | } |
| |
inline Thread *ThreadPool::_init_thread(void) throw(IPCException) |
ThreadHandle _handle; |
{ |
Boolean _is_detached; |
Thread *th = (Thread *) new Thread(&_loop, this, false); |
Boolean _cancelled; |
// allocate a sleep semaphore and pass it in the thread context |
|
// initial count is zero, loop function will sleep until |
|
// we signal the semaphore |
|
Semaphore *sleep_sem = (Semaphore *) new Semaphore(0); |
|
th->put_tsd("sleep sem", &_sleep_sem_del, sizeof(Semaphore), (void *)sleep_sem); |
|
struct timeval *dldt = (struct timeval *) ::operator new(sizeof(struct timeval)); |
|
th->put_tsd("deadlock timer", thread_data::default_delete, sizeof(struct timeval), (void *)dldt); |
|
// thread will enter _loop(void *) and sleep on sleep_sem until we signal it |
|
th->run(); |
|
_current_threads++; |
|
return th; |
|
} |
|
| |
inline void ThreadPool::_link_pool(Thread *th) throw(IPCException) |
// always pass this * as the void * parameter to the thread |
{ |
// store the user parameter in _thread_parm |
if(th == 0) |
|
throw NullPointer(); |
|
_pool.insert_first(th); |
|
_pool_sem.signal(); |
|
} |
|
| |
|
ThreadReturnType(PEGASUS_THREAD_CDECL* _start) (void *); |
|
List<cleanup_handler, Mutex> _cleanup; |
|
List<thread_data, Mutex> _tsd; |
| |
#if defined(PEGASUS_OS_TYPE_WINDOWS) |
void* _thread_parm; |
# include "ThreadWindows_inline.h" |
ThreadReturnType _exit_code; |
#elif defined(PEGASUS_OS_TYPE_UNIX) |
static Boolean _signals_blocked; |
# include "ThreadUnix_inline.h" |
static TSDKeyType _platform_thread_key; |
#endif |
static Boolean _key_initialized; |
|
static Boolean _key_error; |
|
}; |
| |
PEGASUS_NAMESPACE_END | PEGASUS_NAMESPACE_END |
| |