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62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
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// Distributed under the MIT License (http://opensource.org/licenses/MIT)
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#pragma once
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#include <spdlog/common.h>
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#include <tuple>
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namespace spdlog {
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namespace details {
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// Helper class for file sinks.
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// When failing to open a file, retry several times(5) with a delay interval(10 ms).
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// Throw spdlog_ex exception on errors.
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class SPDLOG_API file_helper {
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public:
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file_helper() = default;
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explicit file_helper(const file_event_handlers &event_handlers);
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file_helper(const file_helper &) = delete;
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file_helper &operator=(const file_helper &) = delete;
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~file_helper();
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void open(const filename_t &fname, bool truncate = false);
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void reopen(bool truncate);
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void flush();
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void sync();
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void close();
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void write(const memory_buf_t &buf);
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size_t size() const;
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const filename_t &filename() const;
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//
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// return file path and its extension:
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//
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// "mylog.txt" => ("mylog", ".txt")
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// "mylog" => ("mylog", "")
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// "mylog." => ("mylog.", "")
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// "/dir1/dir2/mylog.txt" => ("/dir1/dir2/mylog", ".txt")
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//
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// the starting dot in filenames is ignored (hidden files):
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//
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// ".mylog" => (".mylog". "")
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// "my_folder/.mylog" => ("my_folder/.mylog", "")
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// "my_folder/.mylog.txt" => ("my_folder/.mylog", ".txt")
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static std::tuple<filename_t, filename_t> split_by_extension(const filename_t &fname);
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private:
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const int open_tries_ = 5;
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const unsigned int open_interval_ = 10;
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std::FILE *fd_{nullptr};
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filename_t filename_;
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file_event_handlers event_handlers_;
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};
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} // namespace details
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} // namespace spdlog
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#ifdef SPDLOG_HEADER_ONLY
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#include "file_helper-inl.h"
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#endif
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