void testMount() {
printf("testing tfs_mount\n");
printf("non-existant file\n");
REQUIRE_EQ(tfs_mount(FILE_NOT_EXISTS), TFS_EACCESS);
printf("valid file\n");
REQUIRE_EQ(tfs_mount(FILE_VALID), TFS_SUCCESS);
tfs_unmount();
printf("valid file, then non-existant file\n");
REQUIRE_EQ(tfs_mount(FILE_VALID), TFS_SUCCESS);
REQUIRE_EQ(tfs_mount(FILE_NOT_EXISTS), TFS_EONEFS);
tfs_unmount();
printf("valid file, then valid file\n");
REQUIRE_EQ(tfs_mount(FILE_VALID), TFS_SUCCESS);
REQUIRE_EQ(tfs_mount(FILE_VALID), TFS_EONEFS);
tfs_unmount();
printf("invalid file\n");
REQUIRE_EQ(tfs_mount(FILE_INVALID), TFS_ENOTFS);
printf("invalid file, then valid file\n");
REQUIRE_EQ(tfs_mount(FILE_INVALID), TFS_ENOTFS);
REQUIRE_EQ(tfs_mount(FILE_VALID), TFS_SUCCESS);
tfs_unmount();
}
void wrapTest(void (*test)()) {
REQUIRE_EQ(tfs_mkfs(DEFAULT_DISK_NAME, DEFAULT_DISK_SIZE), TFS_SUCCESS);
REQUIRE_EQ(tfs_mount(DEFAULT_DISK_NAME), TFS_SUCCESS);
test();
REQUIRE_EQ(tfs_unmount(), TFS_SUCCESS);
}
int squash(Buffer * buf) {
int num;
for (num = 0; num < buf->nBufferBlocks; num++) {
if (buf->pin[num] == 1) {
unPinPage(buf, buf->pages[num].address);
}
if (buf->dirty[num] == 1) {
flushPage(buf, buf->pages[num].address);
}
}
free(buf->database);
free(buf->pages);
free(buf->cache);
free(buf->buffer_timestamp);
free(buf->cache_timestamp);
free(buf->pin);
free(buf->dirty);
free(buf->volatileFDs);
free(buf->persistentFDs);
free(buf);
return tfs_unmount();
}
int tfs_mount(char *filename) {
int i, diskNum;
if (disk_mount)
tfs_unmount();
char buff[BLOCKSIZE];
diskNum = openDisk(filename, 0);
if (diskNum < 0)
return ERR_BADFS;
readBlock(diskNum, 0, buff);
if (buff[1] != 0x45)
return ERR_BADFS;
disk_mount = filename;
if(DEBUG)
printf("Mounted disk %s\n",disk_mount);
close(diskNum);
return 1;
}
void testMountAndUnmount() {
printf("testing tfs_mount and tfs_unmount\n");
printf("valid file, unmount, non-existant file, unmount\n");
REQUIRE_EQ(tfs_mount(FILE_VALID), TFS_SUCCESS);
REQUIRE_EQ(tfs_unmount(), TFS_SUCCESS);
REQUIRE_EQ(tfs_mount(FILE_NOT_EXISTS), TFS_EACCESS);
REQUIRE_EQ(tfs_unmount(), TFS_ENOFS);
printf("valid file, unmount, invalid file, unmount\n");
REQUIRE_EQ(tfs_mount(FILE_VALID), TFS_SUCCESS);
REQUIRE_EQ(tfs_unmount(), TFS_SUCCESS);
REQUIRE_EQ(tfs_mount(FILE_INVALID), TFS_ENOTFS);
REQUIRE_EQ(tfs_unmount(), TFS_ENOFS);
printf("valid file, unmount, valid file, unmount\n");
REQUIRE_EQ(tfs_mount(FILE_VALID), TFS_SUCCESS);
REQUIRE_EQ(tfs_unmount(), TFS_SUCCESS);
REQUIRE_EQ(tfs_mount(FILE_VALID), TFS_SUCCESS);
REQUIRE_EQ(tfs_unmount(), TFS_SUCCESS);
}
