mirror of https://github.com/ARMmbed/mbed-os.git
94 lines
2.2 KiB
C++
94 lines
2.2 KiB
C++
/*
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* Copyright (c) , Arm Limited and affiliates.
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __FILE_HANDLE_STUB_H__
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#define __FILE_HANDLE_STUB_H__
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#include "FileHandle.h"
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namespace mbed {
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static uint8_t filehandle_stub_short_value_counter = 0;
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static char *filehandle_stub_table = NULL;
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static uint8_t filehandle_stub_table_pos = 0;
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class FileHandle_stub : public FileHandle {
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public:
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ssize_t size_value;
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FileHandle_stub()
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{
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size_value = 0;
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}
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virtual ssize_t read(void *buffer, size_t size)
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{
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if (filehandle_stub_table) {
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ssize_t ret = strlen(filehandle_stub_table) - filehandle_stub_table_pos;
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if (size < ret) {
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ret = size;
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}
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memcpy(buffer, filehandle_stub_table + filehandle_stub_table_pos, ret);
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filehandle_stub_table_pos += ret;
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return ret;
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}
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return 0;
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}
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virtual ssize_t write(const void *buffer, size_t size)
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{
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if (size_value > 0) {
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size_value--;
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return size;
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} else if (size_value < 0) {
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return -1;
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}
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return 0;
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}
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virtual off_t seek(off_t offset, int whence = SEEK_SET)
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{
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return 0;
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}
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virtual int close()
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{
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}
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virtual short poll(short events) const
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{
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if (filehandle_stub_short_value_counter) {
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filehandle_stub_short_value_counter--;
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return short_value;
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}
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return 0;
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}
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virtual void sigio(Callback<void()> func)
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{
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if (func) {
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func();
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}
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}
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short short_value;
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};
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} // namespace mbed
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#endif
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