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/********************************************************************************
* *
* M e m o r y M a p T e s t *
* *
*********************************************************************************
* Copyright (C) 2004,2006 by Jeroen van der Zijp. All Rights Reserved. *
*********************************************************************************
* $Id: memmap.cpp,v 1.5 2006/01/22 17:59:02 fox Exp $ *
********************************************************************************/
#include "fx.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "FXMemMap.h"
/*
Notes:
- Test FXMemMap capabilities.
*/
/*******************************************************************************/
enum ACTION {
TEST_NONE,
TEST_READ,
TEST_WRITE
};
void printusage(){
fprintf(stderr,"Usage: \n\n");
fprintf(stderr," memmap read <length> <filename>\n\n");
fprintf(stderr," or\n\n");
fprintf(stderr," memmap write <length> <filename>\n");
}
// Start the whole thing
int main(int argc,char** argv){
FXString filename=FXString::null;
ACTION action=TEST_READ;
long index;
long length=0;
long offset=0;
char* base;
// What to test
FXMemMap map;
// Show how to use
if(argc<4){
printusage();
exit(0);
}
// Get action
if(strcmp(argv[1],"read")==0)
action=TEST_READ;
else if(strcmp(argv[1],"write")==0)
action=TEST_WRITE;
else{
printusage();
exit(0);
}
// Get size
if(sscanf(argv[2],"%ld",&length)<1){
printusage();
exit(0);
}
// Get filename
filename=argv[3];
// Show process id
fprintf(stderr,"Process id=%d\n",fxgetpid());
// Test reading
if(action==TEST_READ){
// Wait for return
fprintf(stderr,"Press return to map:");
getchar();
// Map
base=(char*)map.mapFile(filename,offset,length,FXMemMap::READ,FXMemMap::SHAR);
if(base==NULL){
fprintf(stderr,"mapFile returned NULL\n");
exit(1);
}
fprintf(stderr,"actual length = %ld\n",map.length());
// Touch it
for(index=0; index<map.length(); index++){
if(base[index]!='Z') fprintf(stderr,"base[%ld]=%d\n",index,base[index]);
}
// Wait for return
fprintf(stderr,"Press return to unmap:");
getchar();
// Unmap
map.unmap();
// Wait for return
fprintf(stderr,"Press return to quit:");
getchar();
}
// Test writing
else if(action==TEST_WRITE){
// Wait for return
fprintf(stderr,"Press return to map:");
getchar();
// Map
base=(char*)map.mapFile(filename,offset,length,FXMemMap::READ|FXMemMap::WRITE|FXMemMap::TRUNC,FXMemMap::SHAR);
if(base==NULL){
fprintf(stderr,"mapFile returned NULL\n");
exit(1);
}
fprintf(stderr,"actual length = %ld\n",map.length());
// Write it
for(index=0; index<map.length(); index++){
base[index]='Z';
}
// Wait for return
fprintf(stderr,"Press return to unmap:");
getchar();
// Unmap
map.unmap();
// Wait for return
fprintf(stderr,"Press return to quit:");
getchar();
}
return 1;
}
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