static int
_removeIncompleteCaches(const char *path) {
DIR *dir = opendir(path);
char filepath[MAX_NAME_LEN];
struct dirent *entry;
struct stat statbuf;
int filenameLen;
int extLen;
int status;
int statusFailed = 0;
if (dir != NULL) {
while ((entry = readdir(dir)) != NULL) {
if (!strcmp(entry->d_name, ".") || !strcmp(entry->d_name, "..")) {
continue;
}
snprintf(filepath, MAX_NAME_LEN, "%s/%s", path, entry->d_name);
if (!stat(filepath, &statbuf)) {
// has entry
if (S_ISDIR(statbuf.st_mode)) {
// directory
status = _removeIncompleteCaches(filepath);
if (status < 0) {
statusFailed = status;
}
if (isEmptyDir(filepath) == 0) {
rodsLog (LOG_DEBUG, "_removeIncompleteCaches: removing empty dir : %s", filepath);
status = rmdir(filepath);
if (status < 0) {
statusFailed = status;
}
}
} else {
// file
filenameLen = strlen(entry->d_name);
extLen = strlen(PRELOAD_FILES_IN_DOWNLOADING_EXT);
if (filenameLen > extLen && !strcmp(entry->d_name + filenameLen - extLen, PRELOAD_FILES_IN_DOWNLOADING_EXT)) {
// found incomplete cache
rodsLog (LOG_DEBUG, "_removeIncompleteCaches: removing incomplete cache : %s", filepath);
status = unlink(filepath);
if (status < 0) {
statusFailed = status;
}
}
}
}
}
closedir(dir);
}
return statusFailed;
}
int my_rmdir(int argc, char* argv[])
{
result_t result = NONE;
const int uid = running->uid;
const int device = running->cwd->device;
if(argc < 2)
{
fprintf(stderr, "rmdir: missing operand\n");
return MISSING_OPERAND;
}
// rmdir each path given by user
int i = 1;
while(i < argc)
{
char* path = argv[i];
int ino = getino(device, path);
MINODE* mip = iget(device, ino);
// Verify file exists
if(!mip)
{
result = DOES_NOT_EXIST;
fprintf(stderr, "rmdir: failed to remove '%s':"
" No such file or directory\n", path);
goto clean_up;
}
// Verify user has permission to remove the directory
else if(uid != SUPER_USER && uid != mip->inode.i_uid)
{
result = PERM_DENIED;
fprintf(stderr, "rmdir: failed to remove '%s':"
" Permission denied\n", path);
goto clean_up;
}
// Verify that it is a directory
else if(!S_ISDIR(mip->inode.i_mode))
{
result = NOT_DIR;
fprintf(stderr, "rmdir: failed to remove '%s':"
" Not a directory\n", path);
goto clean_up;
}
// Verify that it is not busy
else if(mip->refCount > 1)
{
result = BUSY;
fprintf(stderr, "rmdir: failed to remove directory '%s':"
" Directory busy\n", path);
goto clean_up;
}
// Verify that it is empty
else if(!isEmptyDir(mip))
{
result = NOT_EMPTY;
fprintf(stderr, "rmdir: failed to remove directory '%s':"
" Directory not empty\n", path);
goto clean_up;
}
// If removing multiple directories, display
if(argc > 2)
printf("rmdir: removing directory '%s'\n", path);
INODE* ip = &mip->inode;
// Get parent DIR's ino and Minode
int parent_ino = 0;
findino(mip, &ino, &parent_ino);
MINODE* parent_mip = iget(device, parent_ino);
INODE* parent_ip = &parent_mip->inode;
// Deallocate its blocks
for(int b = 0; b < NUM_DIRECT_BLOCKS && ip->i_block[b] != 0; b++)
bfree(device, ip->i_block[b]);
// Deallocate its inode
ifree(device, ino);
// Remove entry from parent directory
rm_child(parent_mip, ino);
// Update parent's info
parent_ip->i_links_count--;
parent_ip->i_atime = time(0L);
parent_ip->i_mtime = time(0L);
parent_mip->dirty = true;
// Write parent changes to disk
iput(parent_mip);
clean_up:
// Write changes to deleted directory to disk and clear refCount
iput(mip);
if(result != NONE)
return result;
i++;
}
return SUCCESS;
}
