move native_handle stuff from master_gl
diff --git a/include/cutils/native_handle.h b/include/cutils/native_handle.h
index 2b64893..8a44b72 100644
--- a/include/cutils/native_handle.h
+++ b/include/cutils/native_handle.h
@@ -17,12 +17,55 @@
#ifndef NATIVE_HANDLE_H_
#define NATIVE_HANDLE_H_
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+
typedef struct
{
- int version; /* sizeof(native_handle) */
+ int version; /* sizeof(native_handle_t) */
int numFds; /* number of file-descriptors at &data[0] */
int numInts; /* number of ints at &data[numFds] */
int data[0]; /* numFds + numInts ints */
-} native_handle;
+} native_handle_t;
+
+
+/* keep the old definition for backward source-compatibility */
+typedef native_handle_t native_handle;
+
+/*
+ * native_handle_close
+ *
+ * closes the file descriptors contained in this native_handle_t
+ *
+ * return 0 on success, or a negative error code on failure
+ *
+ */
+int native_handle_close(const native_handle_t* h);
+
+
+/*
+ * native_handle_create
+ *
+ * creates a native_handle_t and initializes it. must be destroyed with
+ * native_handle_delete().
+ *
+ */
+native_handle_t* native_handle_create(int numFds, int numInts);
+
+/*
+ * native_handle_delete
+ *
+ * frees a native_handle_t allocated with native_handle_create().
+ * This ONLY frees the memory allocated for the native_handle_t, but doesn't
+ * close the file descriptors; which can be achieved with native_handle_close().
+ *
+ * return 0 on success, or a negative error code on failure
+ *
+ */
+int native_handle_delete(native_handle_t* h);
+
+
+__END_DECLS
#endif /* NATIVE_HANDLE_H_ */