bool dxThreadingThreadPool::InitializeThreads(size_t thread_count, size_t stack_size, unsigned int ode_data_allocate_flags)
{
dIASSERT(m_thread_infos == NULL);
bool result = false;
bool wait_event_allocated = false;
dxThreadPoolThreadInfo *thread_infos = NULL;
bool thread_infos_allocated = false;
do
{
if (!m_ready_wait_event.InitializeObject(false, false))
{
break;
}
wait_event_allocated = true;
thread_infos = (dxThreadPoolThreadInfo *)dAlloc(thread_count * sizeof(dxThreadPoolThreadInfo));
if (thread_infos == NULL)
{
break;
}
thread_infos_allocated = true;
if (!InitializeIndividualThreadInfos(thread_infos, thread_count, stack_size, ode_data_allocate_flags))
{
break;
}
m_thread_infos = thread_infos;
m_thread_count = thread_count;
result = true;
}
while (false);
if (!result)
{
if (wait_event_allocated)
{
if (thread_infos_allocated)
{
dFree(thread_infos, thread_count * sizeof(dxThreadPoolThreadInfo));
}
m_ready_wait_event.FinalizeObject();
}
}
return result;
}
bool dxThreadPoolThreadInfo::Initialize(size_t stack_size, unsigned int ode_data_allocate_flags)
{
bool result = false;
bool command_event_allocated = false, acknowledgement_event_allocated = false;
HANDLE thread_handle = NULL;
do
{
if (stack_size > THREAD_STACK_MAX)
{
SetLastError(ERROR_INVALID_PARAMETER);
break;
}
if (!m_command_event.InitializeObject(false, false))
{
break;
}
command_event_allocated = true;
if (!m_acknowledgement_event.InitializeObject(true, false))
{
break;
}
acknowledgement_event_allocated = true;
m_ode_data_allocate_flags = ode_data_allocate_flags;
thread_handle = (HANDLE)_beginthreadex(NULL, (unsigned)stack_size, &ThreadProcedure_Callback, (void *)this, 0, NULL);
if (thread_handle == NULL) // Not a bug!!! _beginthreadex() returns NULL on failure
{
break;
}
// It is OK to alter priority for thread without creating it in suspended state as
// it is anyway going to be waited for (waited for its init result) and
// will not be issues commands until after that.
int own_priority = GetThreadPriority(GetCurrentThread());
if (own_priority != THREAD_PRIORITY_ERROR_RETURN)
{
if (!SetThreadPriority(thread_handle, own_priority))
{
// own_priority = THREAD_PRIORITY_ERROR_RETURN; -- Well, if priority inheritance fails - just ignore it :-/
}
}
bool thread_init_result = WaitInitStatus();
if (!thread_init_result)
{
DWORD error_save = GetLastError();
WaitAndCloseThreadHandle(thread_handle);
SetLastError(error_save);
break;
}
m_thread_handle = thread_handle;
result = true;
}
while (false);
if (!result)
{
if (command_event_allocated)
{
if (acknowledgement_event_allocated)
{
m_acknowledgement_event.FinalizeObject();
}
m_command_event.FinalizeObject();
}
}
return result;
}
bool dxThreadPoolThreadInfo::Initialize(size_t stack_size, unsigned int ode_data_allocate_flags)
{
bool result = false;
bool command_event_allocated = false, acknowledgement_event_allocated = false;
do
{
// -- There is no implicit limit on stack size in POSIX implementation
// if (stack_size > ...)
// {
// errno = EINVAL;
// break;
// }
if (!m_command_event.InitializeObject(false, false))
{
break;
}
command_event_allocated = true;
if (!m_acknowledgement_event.InitializeObject(true, false))
{
break;
}
acknowledgement_event_allocated = true;
m_ode_data_allocate_flags = ode_data_allocate_flags;
pthread_attr_t thread_attr;
if (!InitializeThreadAttributes(&thread_attr, stack_size))
{
break;
}
int thread_create_result = pthread_create(&m_thread_handle, &thread_attr, &ThreadProcedure_Callback, (void *)this);
FinalizeThreadAttributes(&thread_attr);
if (thread_create_result != EOK)
{
errno = thread_create_result;
break;
}
bool thread_init_result = WaitInitStatus();
if (!thread_init_result)
{
WaitAndCloseThreadHandle(m_thread_handle);
break;
}
m_thread_allocated = true;
result = true;
}
while (false);
if (!result)
{
if (command_event_allocated)
{
if (acknowledgement_event_allocated)
{
m_acknowledgement_event.FinalizeObject();
}
m_command_event.FinalizeObject();
}
}
return result;
}