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nsprpub/lib/prstreams/prstrms.h@7e26c7da4463 (annotated)

nsprpub/lib/prstreams/prstrms.h

Wed, 31 Dec 2014 06:55:50 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 06:55:50 +0100

changeset 2

7e26c7da4463

permissions

-rw-r--r--

Added tag UPSTREAM_283F7C6 for changeset ca08bd8f51b2

michael@0	1	/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0	2	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	3	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	4	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	5
michael@0	6	/*
michael@0	7	* Robin J. Maxwell 11-22-96
michael@0	8	* Fredrik Roubert <roubert@google.com> 2010-07-23
michael@0	9	* Matt Austern <austern@google.com> 2010-07-23
michael@0	10	*/
michael@0	11
michael@0	12	#ifndef _PRSTRMS_H
michael@0	13	#define _PRSTRMS_H
michael@0	14
michael@0	15	#include <cstddef>
michael@0	16	#include <istream>
michael@0	17	#include <ostream>
michael@0	18	#include <streambuf>
michael@0	19
michael@0	20	#include "prio.h"
michael@0	21
michael@0	22	#ifdef _MSC_VER
michael@0	23	// http://support.microsoft.com/kb/q168958/
michael@0	24	class PR_IMPLEMENT(std::_Mutex);
michael@0	25	class PR_IMPLEMENT(std::ios_base);
michael@0	26	#endif
michael@0	27
michael@0	28
michael@0	29	class PR_IMPLEMENT(PRfilebuf): public std::streambuf
michael@0	30	{
michael@0	31	public:
michael@0	32	PRfilebuf();
michael@0	33	PRfilebuf(PRFileDesc *fd);
michael@0	34	PRfilebuf(PRFileDesc *fd, char_type *ptr, std::streamsize len);
michael@0	35	virtual ~PRfilebuf();
michael@0	36
michael@0	37	bool is_open() const { return _fd != NULL; }
michael@0	38
michael@0	39	PRfilebuf *open(
michael@0	40	const char *name,
michael@0	41	std::ios_base::openmode flags,
michael@0	42	PRIntn mode);
michael@0	43	PRfilebuf *attach(PRFileDesc *fd);
michael@0	44	PRfilebuf *close();
michael@0	45
michael@0	46	protected:
michael@0	47	virtual std::streambuf *setbuf(char_type *ptr, std::streamsize len);
michael@0	48	virtual pos_type seekoff(
michael@0	49	off_type offset,
michael@0	50	std::ios_base::seekdir dir,
michael@0	51	std::ios_base::openmode flags);
michael@0	52	virtual pos_type seekpos(
michael@0	53	pos_type pos,
michael@0	54	std::ios_base::openmode flags) {
michael@0	55	return seekoff(pos, std::ios_base::beg, flags);
michael@0	56	}
michael@0	57	virtual int sync();
michael@0	58	virtual int_type underflow();
michael@0	59	virtual int_type overflow(int_type c = traits_type::eof());
michael@0	60
michael@0	61	// TODO: Override pbackfail(), showmanyc(), uflow(), xsgetn(), and xsputn().
michael@0	62
michael@0	63	private:
michael@0	64	bool allocate();
michael@0	65	void setb(char_type *buf_base, char_type *buf_end, bool user_buf);
michael@0	66
michael@0	67	PRFileDesc *_fd;
michael@0	68	bool _opened;
michael@0	69	bool _allocated;
michael@0	70	bool _unbuffered;
michael@0	71	bool _user_buf;
michael@0	72	char_type *_buf_base;
michael@0	73	char_type *_buf_end;
michael@0	74	};
michael@0	75
michael@0	76
michael@0	77	class PR_IMPLEMENT(PRifstream): public std::istream
michael@0	78	{
michael@0	79	public:
michael@0	80	PRifstream();
michael@0	81	PRifstream(PRFileDesc *fd);
michael@0	82	PRifstream(PRFileDesc *fd, char_type *ptr, std::streamsize len);
michael@0	83	PRifstream(const char *name, openmode flags = in, PRIntn mode = 0);
michael@0	84	virtual ~PRifstream();
michael@0	85
michael@0	86	PRfilebuf *rdbuf() const { return &_filebuf; }
michael@0	87	bool is_open() const { return _filebuf.is_open(); }
michael@0	88
michael@0	89	void open(const char *name, openmode flags = in, PRIntn mode = 0);
michael@0	90	void attach(PRFileDesc *fd);
michael@0	91	void close();
michael@0	92
michael@0	93	private:
michael@0	94	mutable PRfilebuf _filebuf;
michael@0	95	};
michael@0	96
michael@0	97
michael@0	98	class PR_IMPLEMENT(PRofstream): public std::ostream
michael@0	99	{
michael@0	100	public:
michael@0	101	PRofstream();
michael@0	102	PRofstream(PRFileDesc *fd);
michael@0	103	PRofstream(PRFileDesc *fd, char_type *ptr, std::streamsize len);
michael@0	104	PRofstream(const char *name, openmode flags = out, PRIntn mode = 0);
michael@0	105	virtual ~PRofstream();
michael@0	106
michael@0	107	PRfilebuf *rdbuf() const { return &_filebuf; }
michael@0	108	bool is_open() const { return _filebuf.is_open(); }
michael@0	109
michael@0	110	void open(const char *name, openmode flags = out, PRIntn mode = 0);
michael@0	111	void attach(PRFileDesc *fd);
michael@0	112	void close();
michael@0	113
michael@0	114	private:
michael@0	115	mutable PRfilebuf _filebuf;
michael@0	116	};
michael@0	117
michael@0	118
michael@0	119	class PR_IMPLEMENT(PRfstream): public std::iostream
michael@0	120	{
michael@0	121	public:
michael@0	122	PRfstream();
michael@0	123	PRfstream(PRFileDesc *fd);
michael@0	124	PRfstream(PRFileDesc *fd, char_type *ptr, std::streamsize len);
michael@0	125	PRfstream(const char *name, openmode flags = in | out, PRIntn mode = 0);
michael@0	126	virtual ~PRfstream();
michael@0	127
michael@0	128	PRfilebuf *rdbuf() const { return &_filebuf; }
michael@0	129	bool is_open() const { return _filebuf.is_open(); }
michael@0	130
michael@0	131	void open(const char *name, openmode flags = in | out, PRIntn mode = 0);
michael@0	132	void attach(PRFileDesc *fd);
michael@0	133	void close();
michael@0	134
michael@0	135	private:
michael@0	136	mutable PRfilebuf _filebuf;
michael@0	137	};
michael@0	138
michael@0	139
michael@0	140	#endif /* _PRSTRMS_H */