60 lines
1.8 KiB
C++
60 lines
1.8 KiB
C++
/*
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* Copyright 2022 The Android Open Source Project
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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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#include <cstddef>
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#include <future>
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#include <string>
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namespace bluetooth {
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namespace testing {
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class LogCapture {
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public:
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LogCapture();
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~LogCapture();
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// Rewind file pointer to start of log
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// Returns a |this| pointer for chaining. See |Find|
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LogCapture* Rewind();
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// Searches from filepointer to end of file for |to_find| string
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// Returns true if found, false otherwise
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bool Find(std::string to_find);
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// Reads and returns the entirety of the backing store into a string
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std::string Read();
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// Flushes contents of log capture back to |stderr|
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void Flush();
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// Synchronize buffer contents to file descriptor
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void Sync();
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// Returns the backing store size in bytes
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size_t Size() const;
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// Truncates and resets the file pointer discarding all logs up to this point
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void Reset();
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// Wait until the provided string shows up in the logs
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void WaitUntilLogContains(std::promise<void>* promise, std::string text);
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private:
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std::pair<int, int> create_backing_store() const;
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bool set_non_blocking(int fd) const;
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void clean_up();
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int dup_fd_{-1};
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int fd_{-1};
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int original_stderr_fd_{-1};
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};
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} // namespace testing
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} // namespace bluetooth
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