Michael Phipps
d89abe1f52
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2503 a95241bf-73f2-0310-859d-f6bbb57e9c96
58 lines
1.4 KiB
C++
58 lines
1.4 KiB
C++
#include "vmInterface.h"
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#include <stdio.h>
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#include <unistd.h>
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#include <mman.h>
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#include <errno.h>
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#include <string.h>
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vmInterface *vm;
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void writeByte(unsigned long addr,unsigned int offset, char value) { vm->setByte(addr+offset,value); }
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unsigned char readByte(unsigned long addr,unsigned int offset ) { return vm->getByte(addr+offset);}
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int main(int argc,char **argv)
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{
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try {
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vm = new vmInterface (90);
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system ("rm mmap_test_3_file");
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int myfd=open("mmap_test_3_file",O_RDWR|O_CREAT,0777);
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if (myfd==-1)
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error ("file opening error = %s\n",strerror(errno));
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unsigned long result=(unsigned long)(vm->mmap(NULL,32768,PROT_WRITE|PROT_READ,MAP_SHARED,myfd,0));
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error ("result = %x\n",result);
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for (int i=0;i<16384;i++) {
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writeByte(result,i*2,'B');
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writeByte(result,2*i+1,' ');
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}
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unsigned long result2=(unsigned long)(vm->mmap(NULL,32768,PROT_WRITE|PROT_READ,MAP_SHARED,myfd,0));
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error ("result2 = %x\n",result2);
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char a;
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for (int i=0;i<16384;i+=2048) {
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a = readByte(result2,i*2);
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if ('B' != a)
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error ("Non matching byte %c at offset %d\n",a,i*2);
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a = readByte(result2,i*2+1);
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if (' ' != a)
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error ("Non matching byte %c at offset %d\n",a,i*2+1);
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}
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vm->munmap((void *)result,32768);
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close (myfd);
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vm->munmap((void *)result2,32768);
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}
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catch (const char *t)
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{
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error ("Exception thrown! %s\n",t);
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exit(1);
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}
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catch (...)
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{
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error ("Unknown Exception thrown!\n");
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exit(1);
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}
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return 0;
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}
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