inotify: adding the new inotify.c.

src/inotify.c

@@ -0,0 +1,125 @@
+
+#include <stdlib.h>
+#include "log.h"
+#include "path.h"
+#include "queue.h"
+#include "inotify-backend.h"
+#include "inotify-map.h"
+#include "inotify.h"
+
+static queue_t event_queue;
+
+int inotify_init(void) {
+
+    inotify_backend_init();
+    event_queue = queue_init();
+
+    return 1;
+}
+
+void inotify_exit(void) {
+
+    inotify_backend_exit();
+
+    if (event_queue) {
+        notify_event *e;
+        while((e = queue_dequeue(event_queue)))
+            notify_event_del(e); 
+		queue_destroy(event_queue);
+        event_queue = NULL;
+    }
+}
+
+int inotify_watch(const char *path) {
+
+    int wd = inotify_backend_watch(path);
+    if (wd > 0)
+        inotify_map(wd, path);
+
+    return wd;
+}
+
+int inotify_ignore(const char *path) {
+
+    int wd = inotify_map_get_wd(path);
+
+    if (wd < 0)
+        return -1;
+
+    /* unmap and remove watch */
+    if (inotify_unmap_path(path) == 0) {
+        logmsg(LOG_DEBUG, "remove watch: %i %s", wd, path);
+        
+        if (inotify_backend_ignore(wd) < 0)
+            return -1;
+    }
+    return 0;
+}
+
+static void proc_event(struct inotify_event *iev) {
+
+    int i;
+    struct list *watch_list;
+    int isdir;
+    
+    logmsg(LOG_DEBUG, "RAW EVENT: %i, %x, %s", iev->wd, iev->mask, iev->name);
+
+    if (iev->mask & IN_IGNORED) {
+        inotify_unmap_wd(iev->wd);
+        return;
+    }
+    
+	/* lookup watch descriptors */
+	watch_list = inotify_map_get_path(iev->wd);
+	
+	if (!watch_list) {
+		logmsg(LOG_WARN, "-- IGNORING EVENT -- invalid watchdescriptor %i", iev->wd);
+		return;
+	}
+
+    /* set dir and drop that bit off (so its not in the way) */
+    isdir = (iev->mask & IN_ISDIR) != 0;
+    iev->mask &= ~IN_ISDIR;
+
+    for(i=0; i < watch_list->nr; i++) {
+        
+        struct watch *watch = watch_list->items[i];
+        notify_event *event = notify_event_new();
+
+        notify_event_set_path(event, watch->path);
+        notify_event_set_filename(event, iev->name);
+        event->dir = isdir;
+
+        switch(iev->mask) {
+        case IN_CREATE :
+        case IN_MOVED_TO :
+            event->type = NOTIFY_CREATE;
+            break;
+        case IN_DELETE :
+        case IN_MOVED_FROM :
+            event->type = NOTIFY_DELETE;
+            inotify_ignore(mkpath("%s%s/", event->path, event->filename));
+            break;
+        default:
+            event->type = NOTIFY_UNKNOWN;
+        }
+
+        queue_enqueue(event_queue, event);
+    }
+
+    list_destroy(watch_list);
+}
+
+notify_event* inotify_read(void) {
+
+    char buf[4096];
+    int read, offset = 0;
+
+    read = inotify_backend_read(buf, sizeof(buf));
+    while(read > offset) {
+        struct inotify_event *ev = (struct inotify_event*) &buf[offset];
+        proc_event(ev);
+        offset += sizeof(struct inotify_event) + ev->len;
+    }
+    return queue_dequeue(event_queue);
+}

src/inotify.h

@@ -0,0 +1,17 @@
+
+#ifndef __INOTIFY_H
+#define __INOTIFY_H
+
+#include "event.h"
+
+int inotify_init(void);
+
+void inotify_exit(void);
+
+int inotify_watch(const char *path);
+
+int inotify_ignore(const char *path);
+
+notify_event* inotify_read(void);
+
+#endif /* __INOTIFY_H */