Added the ashmem library from Android

BUG=
TEST=

Review URL: http://codereview.chromium.org/7200011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@89833 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 45 insertions, 0 deletions

diff --git a/third_party/ashmem/ashmem.h b/third_party/ashmem/ashmem.h
new file mode 100644
index 0000000..708dd45
--- /dev/null
+++ b/third_party/ashmem/ashmem.h
@@ -0,0 +1,45 @@
+/* third_party/ashmem/ashmem.h
+ **
+ ** Copyright 2008 The Android Open Source Project
+ **
+ ** This file is dual licensed.  It may be redistributed and/or modified
+ ** under the terms of the Apache 2.0 License OR version 2 of the GNU
+ ** General Public License.
+ */
+
+#ifndef _THIRD_PARTY_ASHMEM_H
+#define _THIRD_PARTY_ASHMEM_H
+
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int ashmem_create_region(const char *name, size_t size);
+int ashmem_set_prot_region(int fd, int prot);
+int ashmem_pin_region(int fd, size_t offset, size_t len);
+int ashmem_unpin_region(int fd, size_t offset, size_t len);
+int ashmem_get_size_region(int fd);
+
+#ifdef __cplusplus
+}
+#endif
+
+#ifndef __ASHMEMIOC	/* in case someone included <linux/ashmem.h> too */
+
+#define ASHMEM_NAME_LEN		256
+
+#define ASHMEM_NAME_DEF		"dev/ashmem"
+
+/* Return values from ASHMEM_PIN: Was the mapping purged while unpinned? */
+#define ASHMEM_NOT_PURGED	0
+#define ASHMEM_WAS_PURGED	1
+
+/* Return values from ASHMEM_UNPIN: Is the mapping now pinned or unpinned? */
+#define ASHMEM_IS_UNPINNED	0
+#define ASHMEM_IS_PINNED	1
+
+#endif	/* ! __ASHMEMIOC */
+
+#endif	/* _THIRD_PARTY_ASHMEM_H */