heap_3.c

来自「freemodbus-v1-1-1-0.zip v1.1.1版本的代码 支持多」· C语言 代码 · 共 80 行

/*
	FreeRTOS V3.2.4 - Copyright (C) 2003-2005 Richard Barry.

	This file is part of the FreeRTOS distribution.

	FreeRTOS is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.

	FreeRTOS 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 General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with FreeRTOS; if not, write to the Free Software
	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

	A special exception to the GPL can be applied should you wish to distribute
	a combined work that includes FreeRTOS, without being obliged to provide
	the source code for any proprietary components.  See the licensing section 
	of http://www.FreeRTOS.org for full details of how and when the exception
	can be applied.

	***************************************************************************
	See http://www.FreeRTOS.org for documentation, latest information, license 
	and contact details.  Please ensure to read the configuration and relevant 
	port sections of the online documentation.
	***************************************************************************
*/


/*
 * Implementation of pvPortMalloc() and vPortFree() that relies on the
 * compilers own malloc() and free() implementations.
 *
 * This file can only be used if the linker is configured to to generate
 * a heap memory area.
 *
 * See heap_2.c and heap_1.c for alternative implementations, and the memory
 * management pages of http://www.FreeRTOS.org for more information.
 */

#include <stdlib.h>

#include "FreeRTOS.h"
#include "task.h"

/*-----------------------------------------------------------*/

void *pvPortMalloc( size_t xWantedSize )
{
void *pvReturn;

	vTaskSuspendAll();
	{
		pvReturn = malloc( xWantedSize );
	}
	xTaskResumeAll();

	return pvReturn;
}
/*-----------------------------------------------------------*/

void vPortFree( void *pv )
{
	if( pv )
	{
		vTaskSuspendAll();
		{
			free( pv );
		}
		xTaskResumeAll();
	}
}