Measure_system - Measure system

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Measure system

Dependencies: EthernetNetIf mbed RF12B

AvailableMemory/AvailableMemory.cpp@1:b26ab2467b1a, 2011-03-10 (annotated)

User	Revision	Line number	New contents of line
benecsj	1:b26ab2467b1a	1	#include "AvailableMemory.h"
benecsj	1:b26ab2467b1a	2	#include <stdlib.h>
benecsj	1:b26ab2467b1a	3
benecsj	1:b26ab2467b1a	4	namespace segundo {
benecsj	1:b26ab2467b1a	5	namespace Utilities {
benecsj	1:b26ab2467b1a	6
benecsj	1:b26ab2467b1a	7	int AvailableMemory(int resolution, int maximum, bool disableInterrupts) {
benecsj	1:b26ab2467b1a	8
benecsj	1:b26ab2467b1a	9	if (resolution < 1) resolution = 1;
benecsj	1:b26ab2467b1a	10	if (maximum < 0) maximum = 0;
benecsj	1:b26ab2467b1a	11
benecsj	1:b26ab2467b1a	12	int low = 0;
benecsj	1:b26ab2467b1a	13	int high = maximum + 1;
benecsj	1:b26ab2467b1a	14
benecsj	1:b26ab2467b1a	15	if (disableInterrupts) __disable_irq();
benecsj	1:b26ab2467b1a	16
benecsj	1:b26ab2467b1a	17	while (high - low > resolution) {
benecsj	1:b26ab2467b1a	18	int mid = (low + high) / 2;
benecsj	1:b26ab2467b1a	19	void* p = malloc(mid);
benecsj	1:b26ab2467b1a	20	if (p == NULL) {
benecsj	1:b26ab2467b1a	21	high = mid;
benecsj	1:b26ab2467b1a	22	} else {
benecsj	1:b26ab2467b1a	23	free(p);
benecsj	1:b26ab2467b1a	24	low = mid;
benecsj	1:b26ab2467b1a	25	}
benecsj	1:b26ab2467b1a	26	}
benecsj	1:b26ab2467b1a	27
benecsj	1:b26ab2467b1a	28	if (disableInterrupts) __enable_irq();
benecsj	1:b26ab2467b1a	29
benecsj	1:b26ab2467b1a	30	return low;
benecsj	1:b26ab2467b1a	31	}
benecsj	1:b26ab2467b1a	32
benecsj	1:b26ab2467b1a	33	} // namespace Utilities
benecsj	1:b26ab2467b1a	34	} // namespace segundo