starpu-max/socl/src/cl_getplatformids.c

/* StarPU --- Runtime system for heterogeneous multicore architectures.
 *
 * Copyright (C) 2010-2020  Université de Bordeaux, CNRS (LaBRI UMR 5800), Inria
 *
 * StarPU 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 2.1 of the License, or (at
 * your option) any later version.
 *
 * StarPU 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 in COPYING.LGPL for more details.
 */

#include "socl.h"

extern int _starpu_init_failed;

/**
 * \brief Get StarPU platform ID
 */
CL_API_SUFFIX__VERSION_1_0
CL_API_ENTRY cl_int CL_API_CALL
soclGetPlatformIDs(cl_uint          num_entries,
		   cl_platform_id * platforms,
		   cl_uint *        num_platforms)
{
	if (_starpu_init_failed)
	{
		if (num_platforms != NULL)
			*num_platforms = 0;
		return CL_SUCCESS;
	}

	if ((num_entries == 0 && platforms != NULL)
	    || (num_platforms == NULL && platforms == NULL))
		return CL_INVALID_VALUE;
	else
	{
		if (platforms != NULL)
			platforms[0] = &socl_platform;

		if (num_platforms != NULL)
			*num_platforms = 1;
	}

	return CL_SUCCESS;
}