Imported Upstream version 0.13.2+dsfg1

libobs/callback/signal.h

@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2013 Hugh Bailey <obs.jim@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#pragma once
+
+#include "../util/c99defs.h"
+
+#include "calldata.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Signal handler
+ *
+ *   This is used to create a signal handler which can broadcast events
+ * to one or more callbacks connected to a signal.
+ */
+
+struct signal_handler;
+typedef struct signal_handler signal_handler_t;
+typedef void (*signal_callback_t)(void*, calldata_t*);
+
+EXPORT signal_handler_t *signal_handler_create(void);
+EXPORT void signal_handler_destroy(signal_handler_t *handler);
+
+EXPORT bool signal_handler_add(signal_handler_t *handler,
+		const char *signal_decl);
+
+static inline bool signal_handler_add_array(signal_handler_t *handler,
+		const char **signal_decls)
+{
+	bool success = true;
+	if (!signal_decls)
+		return false;
+
+	while (*signal_decls)
+		if (!signal_handler_add(handler, *(signal_decls++)))
+			success = false;
+
+	return success;
+}
+
+EXPORT void signal_handler_connect(signal_handler_t *handler,
+		const char *signal, signal_callback_t callback, void *data);
+EXPORT void signal_handler_disconnect(signal_handler_t *handler,
+		const char *signal, signal_callback_t callback, void *data);
+
+EXPORT void signal_handler_signal(signal_handler_t *handler, const char *signal,
+		calldata_t *params);
+
+#ifdef __cplusplus
+}
+#endif