Author: marvin
Date: Fri May 11 20:44:51 2012
New Revision: 1337370
URL: http://svn.apache.org/viewvc?rev=1337370&view=rev
Log:
Add CFCUtil_walk().
Modified:
lucy/trunk/clownfish/src/CFCUtil.c
lucy/trunk/clownfish/src/CFCUtil.h
Modified: lucy/trunk/clownfish/src/CFCUtil.c
URL:
http://svn.apache.org/viewvc/lucy/trunk/clownfish/src/CFCUtil.c?rev=1337370&r1=1337369&r2=1337370&view=diff
==============================================================================
--- lucy/trunk/clownfish/src/CFCUtil.c (original)
+++ lucy/trunk/clownfish/src/CFCUtil.c Fri May 11 20:44:51 2012
@@ -313,6 +313,43 @@ CFCUtil_make_path(const char *path) {
return true;
}
+void
+CFCUtil_walk(const char *path, CFCUtil_walk_callback_t callback,
+ void *context) {
+ // If it's a valid file system entry, invoke the callback.
+ struct stat stat_buf;
+ int stat_check = stat(path, &stat_buf);
+ if (stat_check == -1) {
+ return;
+ }
+ callback(path, context);
+
+ // Recurse into directories.
+ if (!(stat_buf.st_mode & S_IFDIR)) {
+ return;
+ }
+ void *dirhandle = CFCUtil_opendir(path);
+ size_t dir_len = strlen(path);
+ size_t subpath_cap = dir_len * 2;
+ char *subpath = (char*)MALLOCATE(subpath_cap);
+ const char *entry = NULL;
+ while (NULL != (entry = CFCUtil_dirnext(dirhandle))) {
+ if (strcmp(entry, ".") == 0 || strcmp(entry, "..") == 0) {
+ continue;
+ }
+ size_t name_len = strlen(entry);
+ size_t needed = dir_len + 1 + name_len + 1;
+ if (needed > subpath_cap) {
+ subpath_cap = needed;
+ subpath = (char*)REALLOCATE(subpath, subpath_cap);
+ }
+ sprintf(subpath, "%s" CFCUTIL_PATH_SEP "%s", path, entry);
+ CFCUtil_walk(subpath, callback, context);
+ }
+ FREEMEM(subpath);
+ CFCUtil_closedir(dirhandle, path);
+}
+
/******************************** WINDOWS **********************************/
#ifdef _WIN32
Modified: lucy/trunk/clownfish/src/CFCUtil.h
URL:
http://svn.apache.org/viewvc/lucy/trunk/clownfish/src/CFCUtil.h?rev=1337370&r1=1337369&r2=1337370&view=diff
==============================================================================
--- lucy/trunk/clownfish/src/CFCUtil.h (original)
+++ lucy/trunk/clownfish/src/CFCUtil.h Fri May 11 20:44:51 2012
@@ -170,6 +170,15 @@ CFCUtil_make_dir(const char *dir);
int
CFCUtil_make_path(const char *path);
+/* Walk the file system, recursing into subdirectories. Invoke the supplied
+ * callback for each valid, accessible file system entry.
+ */
+typedef void
+(*CFCUtil_walk_callback_t)(const char *path, void *context);
+void
+CFCUtil_walk(const char *dir, CFCUtil_walk_callback_t callback,
+ void *context);
+
/* Print an error message to stderr and exit.
*/
void
