[SOLVED] CS代考计算机代写 /* Maps the same file into memory twice and verifies that the

/* Maps the same file into memory twice and verifies that the
same data is readable in both. */

#include
#include
#include “tests/vm/sample.inc”
#include “tests/lib.h”
#include “tests/main.h”

void
test_main (void)
{
char *actual[2] = {(char *) 0x10000000, (char *) 0x20000000};
size_t i;
int handle[2];

for (i = 0; i < 2; i++) {CHECK ((handle[i] = open (“sample.txt”)) > 1,
“open ”sample.txt” #%zu”, i);
CHECK (mmap (handle[i], actual[i]) != MAP_FAILED,
“mmap ”sample.txt” #%zu at %p”, i, (void *) actual[i]);
}

for (i = 0; i < 2; i++)CHECK (!memcmp (actual[i], sample, strlen (sample)), “compare mmap’d file %zu against data”, i);}