1 files changed, 135 insertions, 0 deletions
diff --git a/drm/libdrmframework/plugins/forward-lock/internal-format/decoder/FwdLockFile.h b/drm/libdrmframework/plugins/forward-lock/internal-format/decoder/FwdLockFile.h
new file mode 100644
index 0000000..fc64050
--- /dev/null
+++ b/drm/libdrmframework/plugins/forward-lock/internal-format/decoder/FwdLockFile.h
@@ -0,0 +1,135 @@
+/*
+ * Copyright (C) 2010 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.
+ */
+
+#ifndef __FWDLOCKFILE_H__
+#define __FWDLOCKFILE_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <sys/types.h>
+
+/**
+ * Attaches to an open Forward Lock file. The file position is assumed to be at the beginning of the
+ * file.
+ *
+ * @param[in] fileDesc The file descriptor of an open Forward Lock file.
+ *
+ * @return A status code.
+ * @retval 0 Success.
+ * @retval -1 Failure.
+ */
+int FwdLockFile_attach(int fileDesc);
+
+/**
+ * Opens a Forward Lock file for reading.
+ *
+ * @param[in] pFilename A reference to a filename.
+ *
+ * @return A file descriptor.
+ * @retval -1 Failure.
+ */
+int FwdLockFile_open(const char *pFilename);
+
+/**
+ * Reads the specified number of bytes from an open Forward Lock file.
+ *
+ * @param[in] fileDesc The file descriptor of an open Forward Lock file.
+ * @param[out] pBuffer A reference to the buffer that should receive the read data.
+ * @param[in] numBytes The number of bytes to read.
+ *
+ * @return The number of bytes read.
+ * @retval -1 Failure.
+ */
+ssize_t FwdLockFile_read(int fileDesc, void *pBuffer, size_t numBytes);
+
+/**
+ * Updates the file position within an open Forward Lock file.
+ *
+ * @param[in] fileDesc The file descriptor of an open Forward Lock file.
+ * @param[in] offset The offset with which to update the file position.
+ * @param[in] whence One of SEEK_SET, SEEK_CUR, and SEEK_END.
+ *
+ * @return The new file position.
+ * @retval ((off64_t)-1) Failure.
+ */
+off64_t FwdLockFile_lseek(int fileDesc, off64_t offset, int whence);
+
+/**
+ * Detaches from an open Forward Lock file.
+ *
+ * @param[in] fileDesc The file descriptor of an open Forward Lock file.
+ *
+ * @return A status code.
+ * @retval 0 Success.
+ * @retval -1 Failure.
+ */
+int FwdLockFile_detach(int fileDesc);
+
+/**
+ * Closes an open Forward Lock file.
+ *
+ * @param[in] fileDesc The file descriptor of an open Forward Lock file.
+ *
+ * @return A status code.
+ * @retval 0 Success.
+ * @retval -1 Failure.
+ */
+int FwdLockFile_close(int fileDesc);
+
+/**
+ * Checks the data integrity of an open Forward Lock file.
+ *
+ * @param[in] fileDesc The file descriptor of an open Forward Lock file.
+ *
+ * @return A Boolean value indicating whether the integrity check was successful.
+ */
+int FwdLockFile_CheckDataIntegrity(int fileDesc);
+
+/**
+ * Checks the header integrity of an open Forward Lock file.
+ *
+ * @param[in] fileDesc The file descriptor of an open Forward Lock file.
+ *
+ * @return A Boolean value indicating whether the integrity check was successful.
+ */
+int FwdLockFile_CheckHeaderIntegrity(int fileDesc);
+
+/**
+ * Checks both the data and header integrity of an open Forward Lock file.
+ *
+ * @param[in] fileDesc The file descriptor of an open Forward Lock file.
+ *
+ * @return A Boolean value indicating whether the integrity check was successful.
+ */
+int FwdLockFile_CheckIntegrity(int fileDesc);
+
+/**
+ * Returns the content type of an open Forward Lock file.
+ *
+ * @param[in] fileDesc The file descriptor of an open Forward Lock file.
+ *
+ * @return
+ *   A reference to the content type. The reference remains valid as long as the file is kept open.
+ */
+const char *FwdLockFile_GetContentType(int fileDesc);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // __FWDLOCKFILE_H__