42 lines
953 B
C
Executable file
42 lines
953 B
C
Executable file
#include <stdlib.h>
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#include <stdio.h>
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#include "msg.h"
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#include "debug.h"
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#include <sys/syscall.h>
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/**
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* Add to the src message the content of add message
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* @param src the message pointer
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* @param add the message to add
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*/
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void messageAdd(volatile MSG_BLOCK* src, volatile MSG_BLOCK* add){
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unsigned int i;
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src->checksum = 0;
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for(i=0;i < DATA_SIZE;i++){
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src->mData[i] += add->mData[i];
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src->checksum ^= src->mData[i];
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}
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D(printf("[msg]....Sum done...\n"));
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}
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/**
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* Display the message content
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* @param mBlock the message pointer
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*/
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unsigned int messageCheck(volatile MSG_BLOCK* mBlock){
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unsigned int i, tcheck=0;
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for(i=0;i < DATA_SIZE;i++)
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tcheck ^= mBlock->mData[i];
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if(tcheck == mBlock->checksum){
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printf("[OK ] Checksum validated\n");
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return 1;
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}else{
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printf("[ FAILED] Checksum failed, message corrupted\n");
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return 0;
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}
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}
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long gettid(void){
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return syscall(SYS_gettid);
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}
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