[GitHub] [incubator-teaclave] mssun commented on a change in pull request #512: Add support for Teaclave protected files in WAMR executor and related teat

[GitBox <gi...@apache.org>]

mssun commented on a change in pull request #512:
URL: https://github.com/apache/incubator-teaclave/pull/512#discussion_r658317822



##########
File path: examples/python/wasm_teaclave_pf_payload/teaclave_pf.h
##########
@@ -0,0 +1,68 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ *
+ */
+
+/**
+ * Open a protected file as input
+ * 
+ * @param fid the uid of the file, c string pointer
+ * 
+ * @return file handler, -1 if error occurs
+ */
+int teaclave_open_input(char *file_id);
+
+/**
+ * Create/Open? a protected file as output
+ * 
+ * @param fid the uid of the file, c string pointer
+ * 
+ * @return file handler, -1 if error occurs
+ */
+int teaclave_create_output(char *file_id);
+
+/**
+ * Read content from a file to a buffer
+ * 
+ * @param fd file handler returned by `teaclave_open_input`
+ * @param out_buf the pointer to output buffer
+ * @param buf_size the total size in bytes of the output buffer
+ * 
+ * @return bytes read from the file, -1 if error occurs
+ */
+int teaclave_read_file(int fd, void *out_buf, int buf_size);
+
+/**
+ * Write content from a buffer to a file
+ * 
+ * @param fd file handler returned by `teaclave_create_output`
+ * @param buf the pointer to the buffer holding content to write
+ * @param buf_size the total size in bytes to read from the buffer and write to the file
+ * 
+ * @return bytes written to the file, -1 if error occurs
+ */
+int teaclave_write_file(int fd, void *buf, int buf_size);
+
+/**
+ * Close a file handler
+ * 
+ * @param fd file handler to close
+ * 
+ * @return 0 if succeed, -1 otherwise
+ */
+int teaclave_close_file(int fd);

Review comment:
       Please put a new line here.




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