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74 lines
2.6 KiB
C++
74 lines
2.6 KiB
C++
// Copyright (C) 2011 Milo Yip
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#ifndef RAPIDJSON_FILESTREAM_H_
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#define RAPIDJSON_FILESTREAM_H_
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#include "rapidjson.h"
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#include <cstdio>
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namespace rapidjson {
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//! (Depreciated) Wrapper of C file stream for input or output.
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/*!
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This simple wrapper does not check the validity of the stream.
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\note implements Stream concept
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\note deprecated: This was only for basic testing in version 0.1, it is found that the performance is very low by using fgetc(). Use FileReadStream instead.
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*/
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class FileStream {
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public:
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typedef char Ch; //!< Character type. Only support char.
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FileStream(FILE* fp) : fp_(fp), current_('\0'), count_(0) { Read(); }
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char Peek() const { return current_; }
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char Take() { char c = current_; Read(); return c; }
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size_t Tell() const { return count_; }
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void Put(char c) { fputc(c, fp_); }
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void Flush() { fflush(fp_); }
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// Not implemented
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char* PutBegin() { return 0; }
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size_t PutEnd(char*) { return 0; }
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private:
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// Prohibit copy constructor & assignment operator.
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FileStream(const FileStream&);
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FileStream& operator=(const FileStream&);
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void Read() {
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RAPIDJSON_ASSERT(fp_ != 0);
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int c = fgetc(fp_);
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if (c != EOF) {
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current_ = (char)c;
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count_++;
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}
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else if (current_ != '\0')
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current_ = '\0';
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}
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FILE* fp_;
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char current_;
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size_t count_;
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};
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} // namespace rapidjson
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#endif // RAPIDJSON_FILESTREAM_H_
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