int touch_all(void)
{
FILE *maps;
unsigned long start,end,flags,size;
char perms[STR_SIZE],dev[STR_SIZE];
char buf[TOUCH_BUFSIZE];
maps=fopen("/proc/self/maps","r");
if(!maps)
{
perror("touch_all");
return -1;
}
while(fgets(buf,TOUCH_BUFSIZE-1,maps))
{
if(sscanf(buf,"%8lx-%8lx %15s %lx %15s %lu",&start,&end,perms,&flags,dev,&size)<2)
continue;
if(perms[1] == 'w')
touch_area((void*)start,end-start,1);
else
touch_area((void*)start,end-start,0);
}
fclose(maps);
return 0;
}
const char *test_mapping1(void)
{
int rc;
size_t buffer1_len = BUFFER1_PAGES * PAGE_SIZE;
size_t buffer2_len = BUFFER2_PAGES * PAGE_SIZE;
void *buffer1 = create_as_area(buffer1_len);
void *buffer2 = create_as_area(buffer2_len);
if (!buffer1 || !buffer2) {
return "Cannot allocate memory";
}
touch_area(buffer1, buffer1_len);
touch_area(buffer2, buffer2_len);
/* Now verify that mapping to physical frames exist. */
if (!VERIFY_MAPPING(buffer1, BUFFER1_PAGES, EOK)) {
return "Failed to find mapping (buffer1)";
}
if (!VERIFY_MAPPING(buffer2, BUFFER2_PAGES, EOK)) {
return "Failed to find mapping (buffer2)";
}
/* Let's destroy the buffer1 area and access it again. */
rc = as_area_destroy(buffer1);
if (rc != EOK) {
return "Failed to destroy AS area";
}
if (!VERIFY_MAPPING(buffer1, BUFFER1_PAGES, ENOENT)) {
return "Mapping of destroyed area still exists";
}
/* clean-up */
rc = as_area_destroy(buffer2);
if (rc != EOK) {
return "Failed to destroy AS area";
}
return NULL;
}