inotify-watch: Adding inotify watch datastructure.

test/Makefile

@@ -20,6 +20,7 @@ path : unit.c $(ROOT)src/path.o $(addprefix $(ROOT),$(obj-strbuf))
 fscrawl : $(ROOT)src/fscrawl.o $(addprefix $(ROOT),$(obj-fscrawl))
 notify : $(addprefix $(ROOT),$(obj-notify))
 inotify-map : $(addprefix $(ROOT),$(obj-inotify-map))
+inotify-watch : $(addprefix $(ROOT), $(obj-xalloc)) $(addprefix $(ROOT), $(obj-path)) $(ROOT)src/tree.o ../src/inotify-watch.o
 log : $(addprefix $(ROOT),$(obj-log))
 tree : $(addprefix $(ROOT),$(obj-xalloc)) $(ROOT)src/tree.o
 str-list : unit.c $(addprefix $(ROOT),$(obj-str-list))

test/t_inotify-watch.c

@@ -0,0 +1,49 @@
+
+#include <assert.h>
+#include <stdio.h>
+#include "../src/inotify-watch.h"
+
+void print_node(struct tree *n, void *data) {
+
+    size_t c = tree_parent_count(n);
+    while(c--)
+        printf("│   ");
+
+    if (n->next == NULL && n->parent)
+        printf("└──");
+    else
+        printf("│──");
+    printf(" %s\n", ((struct watch *)n)->path);
+}
+
+int main() {
+
+    struct watch *root = inotify_watch_new(0, "/");
+    struct watch *ch1 = inotify_watch_new(1, "/var/");
+    struct watch *ch2 = inotify_watch_new(2, "/mnt/");
+
+    inotify_watch_add(root, ch1);
+    inotify_watch_add(root, ch2);
+
+    inotify_watch_add(ch1, inotify_watch_new(11, "/var/a/"));
+    inotify_watch_add(ch1, inotify_watch_new(12, "/var/b/"));
+    inotify_watch_add(ch2, inotify_watch_new(21, "/mnt/c/"));
+
+    inotify_watch_add((struct watch*)ch2->tree.child, inotify_watch_new(234, "/mnt/c/a/"));
+
+    tree_traverse((struct tree*)root, print_node, NULL);
+
+    inotify_watch_rm(ch1);
+
+    printf("---\n");
+    tree_traverse((struct tree*)root, print_node, NULL);
+
+    inotify_watch_add(root, ch1);
+
+    printf("---\n");
+    tree_traverse((struct tree*)root, print_node, NULL);
+    
+    inotify_watch_destroy(root, NULL);
+
+    return 0;
+}