static void bpc_attribCache_destroyEntry(bpc_attribCache_dir *attr)
{
bpc_attrib_dirDestroy(&attr->dir);
}
/*
* Remove all the files below path (if a directory) and path itself. Deduct reference counts
* for every attrib file removed.
*
* Note that inodes are *not* updated, even in cases where nlinks > 0.
*/
int bpc_path_remove(char *path, int compress)
{
char filePath[BPC_MAXPATHLEN];
STRUCT_STAT st;
DIR *dir;
struct dirent *dp;
int errorCnt = 0;
size_t dirListSize = 0, dirListLen = 0;
char *dirList = NULL, *dirListP;
if ( BPC_LogLevel >= 6 ) bpc_logMsgf("bpc_path_remove(%s)\n", path);
if ( !(dir = opendir(path)) ) {
unlink(path);
return errorCnt;
}
while ( (dp = readdir(dir)) ) {
if ( !strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..") ) continue;
snprintf(filePath, sizeof(filePath), "%s/%s", path, dp->d_name);
if ( BPC_LogLevel >= 8 ) bpc_logMsgf("bpc_path_remove: removing %s\n", filePath);
if ( stat(filePath, &st) ) {
/*
* hmmm. stat failed - just try to remove it
*/
unlink(filePath);
continue;
}
if ( S_ISDIR(st.st_mode) ) {
/*
* To avoid recursing with dir still open (consuming an open fd), remember all the dirs
* and recurse after we close dir.
*/
if ( !dirList ) {
dirListSize = 4096;
if ( !(dirList = malloc(dirListSize)) ) {
bpc_logErrf("bpc_path_refCountAll: can't allocate %u bytes\n", (unsigned)dirListSize);
return ++errorCnt;
}
}
if ( dirListLen + strlen(dp->d_name) + 1 >= dirListSize ) {
dirListSize = dirListSize * 2 + strlen(dp->d_name);
if ( !(dirList = realloc(dirList, dirListSize)) ) {
bpc_logErrf("bpc_path_refCountAll: can't reallocate %u bytes\n", (unsigned)dirListSize);
return ++errorCnt;
}
}
strcpy(dirList + dirListLen, dp->d_name);
dirListLen += strlen(dp->d_name) + 1;
} else {
/*
* if this is an attrib file, we need to read it and deduct the reference counts.
*/
if ( !strncmp(dp->d_name, "attrib", 6) ) {
bpc_attrib_dir dir;
bpc_attrib_dirInit(&dir, compress);
if ( bpc_attrib_dirRead(&dir, NULL, filePath, 0) ) {
bpc_logErrf("bpc_path_remove: can't read attrib file %s\n", filePath);
errorCnt++;
}
if ( BPC_LogLevel >= 9 ) bpc_logMsgf("bpc_path_remove: adjusting ref counts from attrib file %s\n", filePath);
if ( !unlink(filePath) ) {
/*
* Only reduce the ref counts if we succeeded in removing the attrib file
*/
bpc_attrib_dirRefCount(&dir, -1);
}
bpc_attrib_dirDestroy(&dir);
} else {
if ( unlink(filePath) ) errorCnt++;
}
}
}
closedir(dir);
/*
* Now visit the subdirs we have saved above.
*/
if ( dirList ) {
for ( dirListP = dirList ; dirListP < dirList + dirListLen ; dirListP += strlen(dirListP) + 1 ) {
snprintf(filePath, sizeof(filePath), "%s/%s", path, dirListP);
errorCnt += bpc_path_remove(filePath, compress);
}
free(dirList);
}
if ( rmdir(path) ) errorCnt++;
return errorCnt;
}
