added:

dir -> directory walker similar to dirent
    dirwatch -> lets you watch a directory for changes in another thread
    vec -> generic vector

dirwatch.h

@@ -0,0 +1,62 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Basic usage:
+ * 
+ * // this function will be called from another thread every time
+ * // something happens to 'path'
+ * void onEvent(const char *path, int action, dirwatch_file_t file) {
+ *     switch(action) {
+ *         case DIRWATCH_FILE_ADDED:   [do something] break;
+ *         case DIRWATCH_FILE_REMOVED: [do something] break;
+ *         case DIRWATCH_FILE_RENAMED: [do something] break;
+ *     }
+ * }
+ * 
+ * int main() {
+ *     dirwatch_t dir = watchDir((dirwatch_desc_t){
+ *         .dirname = "watch/",
+ *         .on_event = onEvent
+ *     });
+ * 
+ *     waitForWatchDir(&dir);
+ * }
+ */
+
+#include <stdbool.h>
+
+enum {
+    DIRWATCH_FILE_ADDED,
+    DIRWATCH_FILE_REMOVED,
+    DIRWATCH_FILE_RENAMED,
+};
+
+typedef struct {
+    char *name;
+    char *oldname;
+} dirwatch_file_t;
+
+typedef void (*dirwatch_cb_t)(const char *path, int action, dirwatch_file_t data);
+
+typedef struct {
+    const char *path;
+    dirwatch_cb_t on_event;
+} dirwatch_desc_t;
+
+typedef struct {
+    void *handle;
+    dirwatch_desc_t *desc;
+} dirwatch_t;
+
+// Creates a thread and starts watching the folder specified by desc
+// if any action happend on_event will be called from this thread
+dirwatch_t watchDir(dirwatch_desc_t desc);
+// waits forever
+void waitForWatchDir(dirwatch_t *ctx);
+// stops dirwatch thread, if immediately is true, it will try to close it right away
+// otherwise it might wait for one last event 
+void stopWatchDir(dirwatch_t *ctx, bool immediately);