GNU Radio v3.7.x-xxx-xunknown C++ API
file_sink_base.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2004,2007,2008,2013 Free Software Foundation, Inc.
4  *
5  * This file is part of GNU Radio
6  *
7  * GNU Radio is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
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22 
23 #ifndef INCLUDED_GR_FILE_SINK_BASE_H
24 #define INCLUDED_GR_FILE_SINK_BASE_H
25 
26 #include <gnuradio/blocks/api.h>
27 #include <boost/thread.hpp>
28 #include <cstdio>
29 
30 namespace gr {
31  namespace blocks {
32 
33  /*!
34  * \brief Common base class for file sinks
35  */
37  {
38  protected:
39  FILE *d_fp; // current FILE pointer
40  FILE *d_new_fp; // new FILE pointer
41  bool d_updated; // is there a new FILE pointer?
45 
46  protected:
47  file_sink_base(const char *filename, bool is_binary);
48 
49  public:
51  ~file_sink_base();
52 
53  /*!
54  * \brief Open filename and begin output to it.
55  */
56  bool open(const char *filename);
57 
58  /*!
59  * \brief Close current output file.
60  *
61  * Closes current output file and ignores any output until
62  * open is called to connect to another file.
63  */
64  void close();
65 
66  /*!
67  * \brief if we've had an update, do it now.
68  */
69  void do_update();
70 
71  /*!
72  * \brief turn on unbuffered writes for slower outputs
73  */
74  void set_unbuffered(bool unbuffered);
75  };
76 
77  } /* namespace blocks */
78 } /* namespace gr */
79 
80 #endif /* INCLUDED_GR_FILE_SINK_BASE_H */
Common base class for file sinks.
Definition: file_sink_base.h:36
boost::mutex d_mutex
Definition: file_sink_base.h:43
FILE * d_new_fp
Definition: file_sink_base.h:40
bool d_unbuffered
Definition: file_sink_base.h:44
file_sink_base()
Definition: file_sink_base.h:50
#define BLOCKS_API
Definition: gr-blocks/include/gnuradio/blocks/api.h:30
boost::mutex mutex
Definition: thread.h:46
bool d_updated
Definition: file_sink_base.h:41
FILE * d_fp
Definition: file_sink_base.h:39
bool d_is_binary
Definition: file_sink_base.h:42