Re-organize sources

[babeltrace.git] / src / common / babeltrace.h

diff --git a/src/common/babeltrace.h b/src/common/babeltrace.h
new file mode 100644 (file)
index 0000000..49dfb1b
--- /dev/null
+++ b/src/common/babeltrace.h
@@ -0,0 +1,121 @@
+#ifndef _BABELTRACE_INTERNAL_H
+#define _BABELTRACE_INTERNAL_H
+
+/*
+ * Copyright 2012 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include <stdio.h>
+#include <glib.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <errno.h>
+#include "compat/string.h"
+#include <babeltrace2/types.h>
+
+#define PERROR_BUFLEN  200
+
+#ifndef likely
+# ifdef __GNUC__
+#  define likely(x)      __builtin_expect(!!(x), 1)
+# else
+#  define likely(x)      (!!(x))
+# endif
+#endif
+
+#ifndef unlikely
+# ifdef __GNUC__
+#  define unlikely(x)    __builtin_expect(!!(x), 0)
+# else
+#  define unlikely(x)    (!!(x))
+# endif
+#endif
+
+#ifndef min
+#define min(a, b)      (((a) < (b)) ? (a) : (b))
+#endif
+
+#ifndef max
+#define max(a, b)      (((a) > (b)) ? (a) : (b))
+#endif
+
+#ifndef max_t
+#define max_t(type, a, b)      \
+       ((type) (a) > (type) (b) ? (type) (a) : (type) (b))
+#endif
+
+static inline
+bool bt_safe_to_mul_int64(int64_t a, int64_t b)
+{
+       if (a == 0 || b == 0) {
+               return true;
+       }
+
+       return a < INT64_MAX / b;
+}
+
+static inline
+bool bt_safe_to_mul_uint64(uint64_t a, uint64_t b)
+{
+       if (a == 0 || b == 0) {
+               return true;
+       }
+
+       return a < UINT64_MAX / b;
+}
+
+static inline
+bool bt_safe_to_add_int64(int64_t a, int64_t b)
+{
+       return a <= INT64_MAX - b;
+}
+
+static inline
+bool bt_safe_to_add_uint64(uint64_t a, uint64_t b)
+{
+       return a <= UINT64_MAX - b;
+}
+
+/*
+ * Memory allocation zeroed
+ */
+#define zmalloc(x) calloc(1, x)
+
+/*
+ * BT_HIDDEN: set the hidden attribute for internal functions
+ * On Windows, symbols are local unless explicitly exported,
+ * see https://gcc.gnu.org/wiki/Visibility
+ */
+#if defined(_WIN32) || defined(__CYGWIN__)
+#define BT_HIDDEN
+#else
+#define BT_HIDDEN __attribute__((visibility("hidden")))
+#endif
+
+#ifndef __STRINGIFY
+#define __STRINGIFY(x) #x
+#endif
+
+#define TOSTRING(x)    __STRINGIFY(x)
+
+#define BT_UNUSED      __attribute__((unused))
+
+#endif