Function to calculate the memory available for malloc

Dependents:   AvailableMemory_HelloWorld MCBBThermostat helloaabbc SP14P1_skeleton

Committer:
segundo
Date:
Mon Nov 08 13:03:46 2010 +0000
Revision:
13:c8a20f79e011
Parent:
12:3004855925ff
Child:
14:5d5fc6b4ed16

        

Who changed what in which revision?

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segundo 10:7474d5df69c2 1 /** @file
segundo 12:3004855925ff 2 * Return the memory available for a malloc call.
segundo 10:7474d5df69c2 3 * This is done by a binary search approach
segundo 10:7474d5df69c2 4 * calling malloc/free starting with a maximum
segundo 3:9092256004a5 5 */
segundo 0:a98bf0c96bf1 6 #ifndef SEGUNDO_UTILITIES_AVAILABLEMEMORY_H
segundo 0:a98bf0c96bf1 7 #define SEGUNDO_UTILITIES_AVAILABLEMEMORY_H
segundo 6:e94f3a11bad7 8
segundo 9:caba868a4c1a 9 /**
segundo 9:caba868a4c1a 10 * Segundo Equipo
segundo 9:caba868a4c1a 11 */
segundo 0:a98bf0c96bf1 12 namespace segundo {
segundo 9:caba868a4c1a 13 /**
segundo 9:caba868a4c1a 14 * A collection of utilities
segundo 13:c8a20f79e011 15 *
segundo 13:c8a20f79e011 16 * Example:
segundo 13:c8a20f79e011 17 * @code
segundo 13:c8a20f79e011 18 * #include <stdio.h>
segundo 13:c8a20f79e011 19 * #include "AvailableMemory.h"
segundo 13:c8a20f79e011 20 *
segundo 13:c8a20f79e011 21 * int main() {
segundo 13:c8a20f79e011 22 *
segundo 13:c8a20f79e011 23 * printf("Available memory (bytes to nearest 256) : %d\n", AvailableMemory());
segundo 13:c8a20f79e011 24 * printf("Available memory (exact bytes) : %d\n", AvailableMemory(1));
segundo 13:c8a20f79e011 25 *
segundo 13:c8a20f79e011 26 * }
segundo 13:c8a20f79e011 27 * @endcode
segundo 9:caba868a4c1a 28 */
segundo 0:a98bf0c96bf1 29 namespace Utilities {
segundo 0:a98bf0c96bf1 30
segundo 10:7474d5df69c2 31 /** Return the memory available for a malloc call
segundo 11:0f5d5918761a 32 * @param resolution Resolution in number of bytes,
segundo 11:0f5d5918761a 33 * 1 will return the exact value,
segundo 12:3004855925ff 34 * default will return the available memory to the nearest 256 bytes
segundo 12:3004855925ff 35 * @param maximum Maximum amount of memory to check, default is 32K (0x8000)
segundo 11:0f5d5918761a 36 * @param disableInterrupts Disable interrupts whilst checking, default is true
segundo 11:0f5d5918761a 37 * @return Available memory in bytes accurate to within resolution
segundo 1:d8432d8a5b6d 38 */
segundo 11:0f5d5918761a 39 int AvailableMemory(int resolution = 256, int maximum = 0x8000, bool disableInterrupts = true);
segundo 0:a98bf0c96bf1 40
segundo 0:a98bf0c96bf1 41 } // namespace Utilities
segundo 0:a98bf0c96bf1 42 } // namespace segundo
segundo 0:a98bf0c96bf1 43
segundo 0:a98bf0c96bf1 44 using namespace segundo::Utilities;
segundo 0:a98bf0c96bf1 45
segundo 0:a98bf0c96bf1 46 #endif // SEGUNDO_UTILITIES_AVAILABLEMEMORY_H