Re-organize sources

[babeltrace.git] / src / compat / mman.h

diff --git a/src/compat/mman.h b/src/compat/mman.h
new file mode 100644 (file)
index 0000000..9f49452
--- /dev/null
+++ b/src/compat/mman.h
@@ -0,0 +1,77 @@
+#ifndef _BABELTRACE_COMPAT_MMAN_H
+#define _BABELTRACE_COMPAT_MMAN_H
+
+/*
+ * Copyright (C) 2015-2016  Michael Jeanson <mjeanson@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.
+ */
+
+#ifdef __MINGW32__
+
+#include <sys/types.h>
+
+#define PROT_NONE      0x0
+#define PROT_READ      0x1
+#define PROT_WRITE     0x2
+#define PROT_EXEC      0x4
+
+#define MAP_FILE       0
+#define MAP_SHARED     1
+#define MAP_PRIVATE    2
+#define MAP_TYPE       0xF
+#define MAP_FIXED      0x10
+#define MAP_ANONYMOUS  0x20
+#define MAP_ANON       MAP_ANONYMOUS
+#define MAP_FAILED     ((void *) -1)
+
+/*
+ * Note that some platforms (e.g. Windows) do not allow read-only
+ * mappings to exceed the file's size (even within a page).
+ */
+void *bt_mmap(void *addr, size_t length, int prot, int flags, int fd,
+       off_t offset);
+
+int bt_munmap(void *addr, size_t length);
+
+#else /* __MINGW32__ */
+
+#include <sys/mman.h>
+
+static inline
+void *bt_mmap(void *addr, size_t length, int prot, int flags, int fd,
+       off_t offset)
+{
+       return (void *) mmap(addr, length, prot, flags, fd, offset);
+}
+
+static inline
+int bt_munmap(void *addr, size_t length)
+{
+       return munmap(addr, length);
+}
+#endif /* __MINGW32__ */
+
+#ifndef MAP_ANONYMOUS
+# ifdef MAP_ANON
+#   define MAP_ANONYMOUS MAP_ANON
+# endif
+#endif
+
+#endif /* _BABELTRACE_COMPAT_MMAN_H */