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_ */
diff --git a/libcutils/Android.mk b/libcutils/Android.mk
index 7cb1ae4..285e195 100644
--- a/libcutils/Android.mk
+++ b/libcutils/Android.mk
@@ -21,6 +21,7 @@
array.c \
hashmap.c \
atomic.c \
+ native_handle.c \
buffer.c \
socket_inaddr_any_server.c \
socket_local_client.c \
diff --git a/libcutils/native_handle.c b/libcutils/native_handle.c
new file mode 100644
index 0000000..4089968
--- /dev/null
+++ b/libcutils/native_handle.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "NativeHandle"
+
+#include <stdint.h>
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <cutils/log.h>
+#include <cutils/native_handle.h>
+
+native_handle_t* native_handle_create(int numFds, int numInts)
+{
+ native_handle_t* h = malloc(
+ sizeof(native_handle_t) + sizeof(int)*(numFds+numInts));
+
+ h->version = sizeof(native_handle_t);
+ h->numFds = numFds;
+ h->numInts = numInts;
+ return h;
+}
+
+int native_handle_delete(native_handle_t* h)
+{
+ if (h) {
+ if (h->version != sizeof(native_handle_t))
+ return -EINVAL;
+ free(h);
+ }
+ return 0;
+}
+
+int native_handle_close(const native_handle_t* h)
+{
+ if (h->version != sizeof(native_handle_t))
+ return -EINVAL;
+
+ const int numFds = h->numFds;
+ int i;
+ for (i=0 ; i<numFds ; i++) {
+ close(h->data[i]);
+ }
+ return 0;
+}