port notify.h over to inotify-tools

CMakeLists.txt

@@ -33,4 +33,5 @@ target_link_libraries(zinnia ${OPENGL_LIBRARIES})
 target_link_libraries(zinnia ${GLFW_LIBRARIES})
 target_link_libraries(zinnia gl3w)
 target_link_libraries(zinnia ${GTK3_LIBRARIES})
+target_link_libraries(zinnia inotifytools)
 #target_link_libraries(zinnia ${CMAKE_SOURCE_DIR}/deps/nfd/build/lib/Release/x64/libnfd.a)

src/notify.h

@@ -11,48 +11,33 @@ typedef void (Project::*ProjectReloadFn)();
 class NotifyService {
 public:
 	NotifyService() {
-		this->inotify_fd = inotify_init1(IN_NONBLOCK);
-		if (inotify_fd == -1) {
-			perror("inotify_init1");
+		if (!inotifytools_initialize()) {
+			fprintf(stderr, "inotifytools init error: %s\n", strerror(inotifytools_error()));
 			exit(EXIT_FAILURE);
 		}
-
-		std::cout << "inotify fd: " << inotify_fd << '\n';
-
-		this->poll_fd = {.fd = inotify_fd, .events = POLLIN, 0};
 	}
 
 	void watch(Project &project) {
-		int wd = inotify_add_watch(this->inotify_fd, project.basepath.str().c_str(),
-				IN_MODIFY);
-
-		if (wd == -1) {
-			std::cerr << "Failed to watch project base directory: " << project.basepath.str().c_str() << '\n';
-			perror("inotify_add_watch");
-			exit(EXIT_FAILURE);
-		}
-
-		std::cerr << "Watching " << project.basepath << " with wd: " << wd << '\n';
-
-		this->watch_ids.push_back(wd);
+		inotifytools_watch_recursively(project.basepath.str().c_str(),
+				IN_MODIFY | IN_MOVED_TO);
 	}
 
 	void _poll() {
-		int rc = poll(&this->poll_fd, 1, 0);
-		std::cout << "poll() -> " << rc << '\n';
-		if (rc == -1) {
-			if (errno == EINTR)
-				return;
-			perror("poll");
+		struct inotify_event *event = inotifytools_next_event(0);
+
+		if (inotifytools_error() == EINTR)
+			return;
+
+		if (inotifytools_error() != 0) {
+			fprintf(stderr, "inotifytools event error: %s\n", strerror(inotifytools_error()));
 			exit(EXIT_FAILURE);
 		}
 
-		if (rc > 0) {
-			std::cout << "poll data available!\n";
+
+		if (event != NULL) {
+			std::cout << "new inotify event! file: " << event->name << '\n';
+			std::cout << "filename: " << inotifytools_filename_from_wd(event->wd) << '\n';
 		}
 	}
 private:
-	int inotify_fd;
-	struct pollfd poll_fd;
-	std::vector<int> watch_ids;
 };