Add autoreload support by inotify (and dummy backend nop)

main.c

@@ -38,6 +38,7 @@
 #include "thumbs.h"
 #include "util.h"
 #include "window.h"
+#include "autoreload.h"
 
 #define _MAPPINGS_CONFIG
 #include "config.h"
@@ -64,6 +65,7 @@ fileinfo_t *files;
 int filecnt, fileidx;
 int alternate;
 int markcnt;
+autoreload_t autoreload;
 
 int prefix;
 bool extprefix;
@@ -98,6 +100,7 @@ timeout_t timeouts[] = {
 void cleanup(void)
 {
 	img_close(&img, false);
+	arl_cleanup();
 	tns_free(&tns);
 	win_close(&win);
 }
@@ -317,6 +320,7 @@ void load_image(int new)
 
 	info.open = false;
 	open_info();
+	arl_setup();
 
 	if (img.multi.cnt > 0 && img.multi.animate)
 		set_timeout(animate, img.multi.frames[img.multi.sel].delay, true);
@@ -685,7 +689,7 @@ void run(void)
 		init_thumb = mode == MODE_THUMB && tns.initnext < filecnt;
 		load_thumb = mode == MODE_THUMB && tns.loadnext < tns.end;
 
-		if ((init_thumb || load_thumb || to_set || info.fd != -1) &&
+		if ((init_thumb || load_thumb || to_set || info.fd != -1 || autoreload.fd != -1) &&
 		    XPending(win.env.dpy) == 0)
 		{
 			if (load_thumb) {
@@ -708,9 +712,15 @@ void run(void)
 					FD_SET(info.fd, &fds);
 					xfd = MAX(xfd, info.fd);
 				}
+				if (autoreload.fd != -1) {
+					FD_SET(autoreload.fd, &fds);
+					xfd = MAX(xfd, autoreload.fd);
+				}
 				select(xfd + 1, &fds, 0, 0, to_set ? &timeout : NULL);
 				if (info.fd != -1 && FD_ISSET(info.fd, &fds))
 					read_info();
+				if (autoreload.fd != -1 && FD_ISSET(autoreload.fd, &fds))
+					arl_handle();
 			}
 			continue;
 		}
@@ -854,6 +864,7 @@ int main(int argc, char **argv)
 
 	win_init(&win);
 	img_init(&img, &win);
+	arl_init();
 
 	if ((homedir = getenv("XDG_CONFIG_HOME")) == NULL || homedir[0] == '\0') {
 		homedir = getenv("HOME");