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/*
* Copyright © 2012 Intel Corporation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "cl_thread.h"
#include "cl_alloc.h"
#include "cl_utils.h"
static __thread void* thread_batch_buf = NULL;
typedef struct _cl_thread_spec_data {
cl_gpgpu gpgpu ;
int valid;
}cl_thread_spec_data;
void cl_set_thread_batch_buf(void* buf) {
if (thread_batch_buf) {
cl_gpgpu_unref_batch_buf(thread_batch_buf);
}
thread_batch_buf = buf;
}
void* cl_get_thread_batch_buf(void) {
return thread_batch_buf;
}
cl_gpgpu cl_get_thread_gpgpu(cl_command_queue queue)
{
pthread_key_t* key = queue->thread_data;
cl_thread_spec_data* thread_spec_data = pthread_getspecific(*key);
if (!thread_spec_data) {
TRY_ALLOC_NO_ERR(thread_spec_data, CALLOC(struct _cl_thread_spec_data));
if (pthread_setspecific(*key, thread_spec_data)) {
cl_free(thread_spec_data);
return NULL;
}
}
if (!thread_spec_data->valid) {
TRY_ALLOC_NO_ERR(thread_spec_data->gpgpu, cl_gpgpu_new(queue->ctx->drv));
thread_spec_data->valid = 1;
}
error:
return thread_spec_data->gpgpu;
}
void cl_invalid_thread_gpgpu(cl_command_queue queue)
{
pthread_key_t* key = queue->thread_data;
cl_thread_spec_data* thread_spec_data = pthread_getspecific(*key);
if (!thread_spec_data) {
return;
}
if (!thread_spec_data->valid) {
return;
}
assert(thread_spec_data->gpgpu);
cl_gpgpu_delete(thread_spec_data->gpgpu);
thread_spec_data->valid = 0;
}
static void thread_data_destructor(void *data) {
cl_thread_spec_data* thread_spec_data = (cl_thread_spec_data *)data;
if (thread_batch_buf) {
cl_gpgpu_unref_batch_buf(thread_batch_buf);
thread_batch_buf = NULL;
}
if (thread_spec_data->valid)
cl_gpgpu_delete(thread_spec_data->gpgpu);
cl_free(thread_spec_data);
}
/* Create the thread specific data. */
void* cl_thread_data_create(void)
{
int rc = 0;
pthread_key_t *thread_specific_key = CALLOC(pthread_key_t);
if (thread_specific_key == NULL)
return NULL;
rc = pthread_key_create(thread_specific_key, thread_data_destructor);
if (rc != 0)
return NULL;
return thread_specific_key;
}
/* The destructor for clean the thread specific data. */
void cl_thread_data_destroy(void * data)
{
pthread_key_t *thread_specific_key = (pthread_key_t *)data;
/* First release self spec data. */
cl_thread_spec_data* thread_spec_data =
pthread_getspecific(*thread_specific_key);
if (thread_spec_data && thread_spec_data->valid) {
cl_gpgpu_delete(thread_spec_data->gpgpu);
if (thread_spec_data)
cl_free(thread_spec_data);
}
pthread_key_delete(*thread_specific_key);
cl_free(thread_specific_key);
}
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