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Diff for /pegasus/src/Pegasus/Common/Threads.h between version 1.1.2.10 and 1.19

version 1.1.2.10, 2006/08/02 07:26:35

version 1.19, 2008/12/01 17:49:57

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//%2006////////////////////////////////////////////////////////////////////////

//%LICENSE////////////////////////////////////////////////////////////////

// Licensed to The Open Group (TOG) under one or more contributor license

// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.

// agreements. Refer to the OpenPegasusNOTICE.txt file distributed with

// this work for additional information regarding copyright ownership.

// IBM Corp.; EMC Corporation, The Open Group.

// Each contributor licenses this file to you under the OpenPegasus Open

// Source License; you may not use this file except in compliance with the

// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.

// License.

// EMC Corporation; VERITAS Software Corporation; The Open Group.

// Permission is hereby granted, free of charge, to any person obtaining a

// copy of this software and associated documentation files (the "Software"),

// EMC Corporation; Symantec Corporation; The Open Group.

// to deal in the Software without restriction, including without limitation

// the rights to use, copy, modify, merge, publish, distribute, sublicense,

// Permission is hereby granted, free of charge, to any person obtaining a copy

// and/or sell copies of the Software, and to permit persons to whom the

// of this software and associated documentation files (the "Software"), to

// Software is furnished to do so, subject to the following conditions:

// deal in the Software without restriction, including without limitation the

// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or

// The above copyright notice and this permission notice shall be included

// sell copies of the Software, and to permit persons to whom the Software is

// in all copies or substantial portions of the Software.

// furnished to do so, subject to the following conditions:

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

// THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN

// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

// ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED

// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

// "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT

// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY

// LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR

// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT

// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN

// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION

// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

//==============================================================================

//////////////////////////////////////////////////////////////////////////

// Author: Mike Brasher (m.brasher@inovadevelopment.com)

//%/////////////////////////////////////////////////////////////////////////////

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#define Pegasus_Threads_h

#include <cstring>

#include <cstdio>

#include <cstring>

#include <Pegasus/Common/Config.h>

#include <Pegasus/Common/Linkage.h>

// ATTN: can we consolidate these someplace?

#if defined(PEGASUS_HAVE_PTHREADS)

#ifdef PEGASUS_OS_ZOS

# if defined(PEGASUS_PLATFORM_OS400_ISERIES_IBM)

# include <sched.h>

# define _MULTI_THREADED // Is this really necessary?

# endif

#if defined(PEGASUS_HAVE_PTHREADS)

# include <pthread.h>

# include <errno.h>

# include <sys/time.h>

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# error "<Pegasus/Common/Threads.h>: not implemented"

#endif

#if defined(PEGASUS_OS_SOLARIS)

# include <string.h>

# include <stdio.h>

#endif

PEGASUS_NAMESPACE_BEGIN

//==============================================================================

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//==============================================================================

#if defined(PEGASUS_PLATFORM_WIN32_IX86_MSVC)

#if defined(PEGASUS_OS_TYPE_WINDOWS)

# define PEGASUS_THREAD_CDECL __stdcall

#else

# define PEGASUS_THREAD_CDECL /* empty */

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//==============================================================================

// ThreadId

//==============================================================================

struct ThreadId

{

// The character representation of a uint64 requires 22 bytes including the

// null terminator.

char buffer[22];

};

//==============================================================================

// ThreadType

//==============================================================================

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#if defined(PEGASUS_HAVE_PTHREADS)

struct ThreadType

{

public:

ThreadType()

{

memset(this, 0, sizeof(*this));

memset(&thread, 0, sizeof(thread));

}

ThreadType(const ThreadType& x) : _thread(x._thread), _id(x._id)

ThreadType(pthread_t thread_) : thread(thread_)

{

}

ThreadType(pthread_t thread, Uint32 id) : _thread(thread), _id(id)

pthread_t thread;

{

}

ThreadType& operator=(const ThreadType& x)

{

if (&x != this)

{

_id = x._id;

_thread = x._thread;

}

return *this;

}

pthread_t tt_handle() const

{

return _thread;

}

void print() const

{

printf("ThreadType(%lu, %lu)\n", _thread, (unsigned long)_id);

}

private:

pthread_t _thread;

// An id of zero indicates a null object. 1 indicates the main thread.

Uint32 _id;

friend class Threads;

};

#endif /* PEGASUS_HAVE_PTHREADS */

#if defined(PEGASUS_HAVE_WINDOWS_THREADS)

struct ThreadType

{

ThreadType() : handle(NULL) { }

ThreadType() : handle(NULL)

{

}

HANDLE handle;

};

#endif /* PEGASUS_HAVE_WINDOWS_THREADS */

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static void cleanup_pop(int execute);

static Uint32 id(const ThreadType& x = Threads::self());

static ThreadId id(const ThreadType& x = Threads::self());

static bool null(const ThreadType& x = Threads::self());

static void clear(ThreadType& x);

};

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inline bool Threads::equal(ThreadType x, ThreadType y)

{

return pthread_equal(x.tt_handle(), y.tt_handle());

return pthread_equal(x.thread, y.thread);

}

inline void Threads::exit(ThreadReturnType rc)

{

// NOTE: pthread_exit exhibits unusual behavior on RHEL 3 U2, as

// documented in Bugzilla 3836. Where feasible, it may be advantageous

// to avoid using this function.

pthread_exit(rc);

}

inline void Threads::cancel(ThreadType th, ThreadReturnType rc)

{

pthread_cancel(th.tt_handle());

pthread_cancel(th.thread);

}

inline void Threads::yield()

{

#if defined(PEGASUS_PLATFORM_AIX_RS_IBMCXX) || \

#ifdef PEGASUS_OS_LINUX

defined(PEGASUS_PLATFORM_HPUX_ACC) || \

defined(PEGASUS_PLATFORM_OS400_ISERIES_IBM) || \

defined(PEGASUS_PLATFORM_TRU64_ALPHA_DECCXX) || \

defined(PEGASUS_OS_VMS) || \

defined(PEGASUS_OS_ZOS)

sched_yield();

#else

pthread_yield();

#else

sched_yield();

#endif

}

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// ATTN: not implemented.

}

inline Uint32 Threads::id(const ThreadType& x)

inline ThreadId Threads::id(const ThreadType& x)

{

ThreadId tid = { { 0 } };

#if defined(PEGASUS_OS_ZOS)

const char* s = x.thread.__;

sprintf(tid.buffer, "%X%X%X%X%X%X%X%X",

s[0], s[1], s[2], s[3], s[4], s[5], s[6], s[7]);

#else

sprintf(tid.buffer, "%" PEGASUS_64BIT_CONVERSION_WIDTH "u",

Uint64(x.thread));

#endif

return tid;

}

inline bool Threads::null(const ThreadType& x)

{

return x._id;

#if defined(PEGASUS_OS_ZOS)

Uint64 tmp;

memcpy(&tmp, x.thread.__, sizeof(Uint64));

return tmp == 0;

#else

return x.thread == 0;

#endif

}

inline void Threads::clear(ThreadType& x)

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inline ThreadType Threads::self()

{

ThreadType tt;

tt.handle = HANDLE(GetCurrentThreadId());

tt.handle = GetCurrentThread();

return tt;

}

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// ATTN: Not implemented on Windows.

}

inline Uint32 Threads::id(const ThreadType& x)

inline ThreadId Threads::id(const ThreadType& x)

{

ThreadId tmp;

sprintf(tmp.buffer, "%" PEGASUS_64BIT_CONVERSION_WIDTH "u",

Uint64(x.handle));

return tmp;

}

inline bool Threads::null(const ThreadType& x)

{

return (Uint32)(long)x.handle;

return x.handle == NULL;

}

inline void Threads::clear(ThreadType& x)

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	Added in v.1.19

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