121 lines
2.6 KiB
C++
121 lines
2.6 KiB
C++
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/*
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*
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* NOTES:
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*
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* REVISIONS:
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* ane09DEC92: added code for rundown of threads
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* ane30Dec92: increase stack size for threads
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* TSC18May93: Removed os2 specific code, split off Threadable into ntthrdbl.cxx
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* TSC20May93: Added error logging
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* TSC28May93: Added define for theObject. See ntthrdbl.cxx for details
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* pcy08Oct93: Removed redefinition of THREAD_EXIT_TIMEOUT
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* cad24Nov93: defensive checks for deleteions
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* pam02Apr96: changed CreateThread/TerminateThread to _beginthreadex and _endthreadex
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* ash25Jun96: Removed dead code and added method to return the threadable object
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* pam15Jul96: Changed utils.h to w32utils.h
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* ash08Aug96: Added "new" handling capability to each thread
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* dma17Apr98: Moved CloseHandle call to destructor to properly close threads.
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*/
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#include "cdefine.h"
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#include "_defs.h"
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#include <windows.h>
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#include <process.h>
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#include "apc.h"
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#include "thread.h"
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#include "apcsemnt.h"
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#include "mutexnt.h"
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#include "w32utils.h"
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#include "err.h"
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const int STACK_SIZE = 8192;
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DWORD BootstrapThread(LPDWORD PThread)
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{
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Thread *thread = (Thread *)PThread;
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thread->RunMain();
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return ((DWORD) ErrNO_ERROR);
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}
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Thread::~Thread()
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{
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if (theObject)
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{
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delete theObject;
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theObject = NULL;
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}
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CloseHandle (theThreadHandle);
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}
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INT Thread::Start ()
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{
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unsigned int thread_id;
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INT err;
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// Assume no error
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INT errReturn = ErrNO_ERROR;
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theThreadHandle = (HANDLE)_beginthreadex((VOID*)NULL, STACK_SIZE,
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(unsigned int (__stdcall *)(void *)) BootstrapThread,
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(VOID*)this, 0, &thread_id);
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// Do we have a valid thread?
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if (!theThreadHandle)
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{
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// Define the error
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errReturn = ErrTHREAD_CREATE_FAILED;
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}
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err = UtilSelectProcessor(theThreadHandle);
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return (errReturn);
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}
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VOID Thread::RunMain ()
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{
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if (theObject != (PThreadable) NULL) {
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// Run the main member function of the threadable object
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theObject->ThreadMain();
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}
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// Kill the thread
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_endthreadex(0);
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}
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VOID Thread::TerminateThreadNow ()
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{
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DWORD exit_code;
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GetExitCodeThread(theThreadHandle,&exit_code);
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// Terminate the thread
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if (exit_code == STILL_ACTIVE)
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TerminateThread (theThreadHandle, 0L);
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// Make sure
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WaitForSingleObject (theThreadHandle, INFINITE);
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// Close its handle
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CloseHandle (theThreadHandle);
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// Delete the Threadable object
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if (theObject != (PThreadable) NULL)
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{
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delete theObject;
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theObject = (PThreadable) NULL;
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}
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}
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PThreadable Thread::GetThreadableObject()
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{
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return theObject;
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}
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