From 2a981df18167cf8dd0a1310b03061010c8ef71dd Mon Sep 17 00:00:00 2001
From: Sven Willner <sven.willner@gmail.com>
Date: Thu, 24 Aug 2017 20:28:24 +0200
Subject: added inotify support

---
 src/main.c | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

(limited to 'src/main.c')

diff --git a/src/main.c b/src/main.c
index 57b7a7b..e8c30e2 100644
--- a/src/main.c
+++ b/src/main.c
@@ -34,6 +34,10 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "wallpaper.h"
 #include <termios.h>
 
+#ifdef HAVE_INOTIFY
+#include <sys/inotify.h>
+#endif
+
 char **cmdargv = NULL;
 int cmdargc = 0;
 char *mode = NULL;
@@ -54,6 +58,15 @@ int main(int argc, char **argv)
 		init_x_and_imlib();
 		init_keyevents();
 		init_buttonbindings();
+#ifdef HAVE_INOTIFY
+        if (opt.inotify) {
+            opt.inotify_fd = inotify_init();
+            if (opt.inotify_fd < 0) {
+                opt.inotify = 0;
+                eprintf("inotify_init failed");
+            }
+        }
+#endif
 	}
 
 	feh_event_init();
@@ -148,6 +161,13 @@ int feh_main_iteration(int block)
 	FD_SET(xfd, &fdset);
 	if (control_via_stdin)
 		FD_SET(STDIN_FILENO, &fdset);
+#ifdef HAVE_INOTIFY
+    if (opt.inotify) {
+        FD_SET(opt.inotify_fd, &fdset);
+        if (opt.inotify_fd >= fdsize)
+            fdsize = opt.inotify_fd + 1;
+    }
+#endif
 
 	/* Timers */
 	ft = first_timer;
@@ -193,6 +213,10 @@ int feh_main_iteration(int block)
 			}
 			else if (count && (FD_ISSET(0, &fdset)))
 				feh_event_handle_stdin();
+#ifdef HAVE_INOTIFY
+			else if (count && (FD_ISSET(opt.inotify_fd, &fdset)))
+                feh_event_handle_inotify();
+#endif
 		}
 	} else {
 		/* Don't block if there are events in the queue. That's a bit rude ;-) */
@@ -206,6 +230,10 @@ int feh_main_iteration(int block)
 				eprintf("Connection to X display lost");
 			else if (count && (FD_ISSET(0, &fdset)))
 				feh_event_handle_stdin();
+#ifdef HAVE_INOTIFY
+			else if (count && (FD_ISSET(opt.inotify_fd, &fdset)))
+                feh_event_handle_inotify();
+#endif
 		}
 	}
 	if (window_num == 0)
@@ -221,6 +249,12 @@ void feh_clean_exit(void)
 	free(opt.menu_bg);
 	free(opt.menu_font);
 
+#ifdef HAVE_INOTIFY
+    if (opt.inotify)
+        if (close(opt.inotify_fd))
+            eprintf("inotify close failed");
+#endif
+
 	if(disp)
 		XCloseDisplay(disp);
 
-- 
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