Imported Upstream version 0.13.2+dsfg1

libobs/util/base.h

@@ -0,0 +1,94 @@
+/*
+ * 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 <stdarg.h>
+
+#include "c99defs.h"
+
+/*
+ * Just contains logging/crash related stuff
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define STRINGIFY(x) #x
+#define STRINGIFY_(x) STRINGIFY(x)
+#define S__LINE__ STRINGIFY_(__LINE__)
+
+#define INT_CUR_LINE __LINE__
+#define FILE_LINE __FILE__ " (" S__LINE__ "): "
+
+enum {
+	/**
+	 * Use if there's a problem that can potentially affect the program,
+	 * but isn't enough to require termination of the program.
+	 *
+	 * Use in creation functions and core subsystem functions.  Places that
+	 * should definitely not fail.
+	 */
+	LOG_ERROR   = 100, 
+
+	/**
+	 * Use if a problem occurs that doesn't affect the program and is
+	 * recoverable.
+	 *
+	 * Use in places where where failure isn't entirely unexpected, and can
+	 * be handled safely.
+	 */
+	LOG_WARNING = 200,
+
+	/**
+	 * Informative essage to be displayed in the log.
+	 */
+	LOG_INFO    = 300,
+
+	/**
+	 * Debug message to be used mostly by developers.
+	 */
+	LOG_DEBUG   = 400
+};
+
+typedef void (*log_handler_t)(int lvl, const char *msg, va_list args, void *p);
+
+EXPORT void base_get_log_handler(log_handler_t *handler, void **param);
+EXPORT void base_set_log_handler(log_handler_t handler, void *param);
+
+EXPORT void base_set_crash_handler(
+		void (*handler)(const char *, va_list, void *),
+		void *param);
+
+EXPORT void blogva(int log_level, const char *format, va_list args);
+
+#ifndef _MSC_VER
+#define PRINTFATTR(f, a) __attribute__((__format__(__printf__, f, a)))
+#else
+#define PRINTFATTR(f, a)
+#endif
+
+PRINTFATTR(2, 3)
+EXPORT void blog(int log_level, const char *format, ...);
+PRINTFATTR(1, 2)
+EXPORT void bcrash(const char *format, ...);
+
+#undef PRINTFATTR
+
+#ifdef __cplusplus
+}
+#endif