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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Netscape Portable Runtime (NSPR).
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998-2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/* RCThread.cpp - C++ wrapper on NSPR */
#include "rcthread.h"
#include "rcinrval.h"
#include <prmem.h>
#include <prlog.h>
#include <stdio.h>
#include <prinit.h>
static RCPrimordialThread *primordial = NULL;
void nas_Root(void *arg)
{
RCThread *him = (RCThread*)arg;
while (RCThread::ex_unstarted == him->execution)
(void)PR_Sleep(PR_INTERVAL_NO_TIMEOUT); /* wait for Start() */
him->RootFunction(); /* he gets a self reference */
if (PR_UNJOINABLE_THREAD == PR_GetThreadState(him->identity))
delete him;
} /* nas_Root */
RCThread::~RCThread() { }
RCThread::RCThread(): RCBase() { }
RCThread::RCThread(const RCThread&): RCBase()
{
PR_NOT_REACHED("Cannot call thread copy constructor");
} /* RCThread::RCThread */
RCThread::RCThread(
RCThread::Scope scope, RCThread::State join, PRUint32 stackSize):
RCBase()
{
execution = ex_unstarted;
identity = PR_CreateThread(
PR_USER_THREAD, nas_Root, this,
PR_GetThreadPriority(PR_GetCurrentThread()),
(PRThreadScope)scope, (PRThreadState)join, stackSize);
} /* RCThread::RCThread */
void RCThread::operator=(const RCThread&)
{
PR_NOT_REACHED("Cannot call thread assignment operator");
} /* RCThread::operator= */
PRStatus RCThread::Start()
{
PRStatus rv;
/* This is an unsafe check, but not too critical */
if (RCThread::ex_unstarted == execution)
{
execution = RCThread::ex_started;
rv = PR_Interrupt(identity);
PR_ASSERT(PR_SUCCESS == rv);
}
else
{
rv = PR_FAILURE;
PR_SetError(PR_INVALID_STATE_ERROR, 0);
}
return rv;
} /* RCThread::Start */
PRStatus RCThread::Join()
{
PRStatus rv;
if (RCThread::ex_unstarted == execution)
{
rv = PR_FAILURE;
PR_SetError(PR_INVALID_STATE_ERROR, 0);
}
else rv = PR_JoinThread(identity);
if (PR_SUCCESS == rv) delete this;
return rv;
} /* RCThread::Join */
PRStatus RCThread::Interrupt()
{
PRStatus rv;
if (RCThread::ex_unstarted == execution)
{
rv = PR_FAILURE;
PR_SetError(PR_INVALID_STATE_ERROR, 0);
}
else rv = PR_Interrupt(identity);
return rv;
} /* RCThread::Interrupt */
void RCThread::ClearInterrupt() { PR_ClearInterrupt(); }
void RCThread::SetPriority(RCThread::Priority new_priority)
{ PR_SetThreadPriority(identity, (PRThreadPriority)new_priority); }
PRThread *RCThread::Self()
{ return PR_GetCurrentThread(); }
RCThread::Scope RCThread::GetScope() const
{ return (RCThread::Scope)PR_GetThreadScope(identity); }
RCThread::State RCThread::GetState() const
{ return (RCThread::State)PR_GetThreadState(identity); }
RCThread::Priority RCThread::GetPriority() const
{ return (RCThread::Priority)PR_GetThreadPriority(identity); }
static void _rc_PDDestructor(RCThreadPrivateData* privateData)
{
PR_ASSERT(NULL != privateData);
privateData->Release();
}
static PRThreadPrivateDTOR _tpd_dtor = (PRThreadPrivateDTOR)_rc_PDDestructor;
PRStatus RCThread::NewPrivateIndex(PRUintn* index)
{ return PR_NewThreadPrivateIndex(index, _tpd_dtor); }
PRStatus RCThread::SetPrivateData(PRUintn index)
{ return PR_SetThreadPrivate(index, NULL); }
PRStatus RCThread::SetPrivateData(PRUintn index, RCThreadPrivateData* data)
{
return PR_SetThreadPrivate(index, data);
}
RCThreadPrivateData* RCThread::GetPrivateData(PRUintn index)
{ return (RCThreadPrivateData*)PR_GetThreadPrivate(index); }
PRStatus RCThread::Sleep(const RCInterval& ticks)
{ PRIntervalTime tmo = ticks; return PR_Sleep(tmo); }
RCPrimordialThread *RCThread::WrapPrimordialThread()
{
/*
** This needs to take more care in insuring that the thread
** being wrapped is really the primordial thread. This code
** is assuming that the caller is the primordial thread, and
** there's nothing to insure that.
*/
if (NULL == primordial)
{
/* it doesn't have to be perfect */
RCPrimordialThread *me = new RCPrimordialThread();
PR_ASSERT(NULL != me);
if (NULL == primordial)
{
primordial = me;
me->execution = RCThread::ex_started;
me->identity = PR_GetCurrentThread();
}
else delete me; /* somebody beat us to it */
}
return primordial;
} /* RCThread::WrapPrimordialThread */
RCPrimordialThread::RCPrimordialThread(): RCThread() { }
RCPrimordialThread::~RCPrimordialThread() { }
void RCPrimordialThread::RootFunction()
{
PR_NOT_REACHED("Primordial thread calling root function");
} /* RCPrimordialThread::RootFunction */
PRStatus RCPrimordialThread::Cleanup() { return PR_Cleanup(); }
PRStatus RCPrimordialThread::SetVirtualProcessors(PRIntn count)
{
PR_SetConcurrency(count);
return PR_SUCCESS;
} /* SetVirutalProcessors */
RCThreadPrivateData::RCThreadPrivateData() { }
RCThreadPrivateData::RCThreadPrivateData(
const RCThreadPrivateData& him) { }
RCThreadPrivateData::~RCThreadPrivateData() { }
/* RCThread.c */
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