?? protocol.cpp
字號:
#include "../stdafx.h"
#ifdef __WINDOWS
#include "stdio.h"
#include "malloc.h"
#else
/*DSP*/
#include "std.h"
#include "mem.h"
extern int HEAP;
#endif
#include "protocol.h"
#include "simpleProtocol.h"
/*
usage: pack data.
package: in parameter
data: out parameter, point to the data buffer that will be sent soon
return: data length, 0 means failed
*/
/*
int packData(const Package* package, char** data) {
char* dataPointer;
int length;
unsigned int i;
if (package == NULL)
return FAILED;
length = sizeof(package->type) +
sizeof(package->dataLength) +
package->dataLength;
#ifdef __WINDOWS
*data = (char*) malloc(length);
if (*data == NULL) {
return FAILED;
}
#else
//DSP
*data = MEM_alloc(HEAP, length, 0);
if (*data == MEM_ILLEGAL) {
return FAILED;
}
#endif
dataPointer = *data;
// little endian
*((unsigned int*)dataPointer) = package->type;
dataPointer += sizeof(unsigned int);
*((unsigned int*)dataPointer) = package->dataLength;
dataPointer += sizeof(unsigned int);
for (i = 0; i < package->dataLength; i++) {
dataPointer[i] = package->data[i];
}
return length;
}
*/
/*
usage: extract package from received data
data: in parameter, received data
package: out parameter
return: 0 means failed
*/
/*
int extractPackage(char* data, Package *package) {
char* dataPointer = data;
if (package == NULL || data == NULL)
return FAILED;
package->type = *((unsigned int*) dataPointer);
dataPointer += sizeof(unsigned int);
package->dataLength = *((unsigned int*) dataPointer);
dataPointer += sizeof(unsigned int);
package->data = dataPointer;
return OK;
}
*/
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