summaryrefslogtreecommitdiff
path: root/storage/ndb/include/util/OutputStream.hpp
blob: 05fc69a46c3fa098b67ca28b710ad1f4e1e4b73d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
/* Copyright (C) 2003 MySQL AB

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; version 2 of the License.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

#ifndef OUTPUT_STREAM_HPP
#define OUTPUT_STREAM_HPP

#include <ndb_global.h>
#include <NdbTCP.h>

/**
 * Output stream
 */
class OutputStream {
public:
  OutputStream() {}
  virtual ~OutputStream() {}
  virtual int print(const char * fmt, ...) = 0;
  virtual int println(const char * fmt, ...) = 0;
  virtual void flush() {};
  virtual void reset_timeout() {};
};

class FileOutputStream : public OutputStream {
  FILE * f;
public:
  FileOutputStream(FILE * file = stdout);
  virtual ~FileOutputStream() {}
  FILE *getFile() { return f; }

  int print(const char * fmt, ...);
  int println(const char * fmt, ...);
  void flush() { fflush(f); }
};

class SocketOutputStream : public OutputStream {
  NDB_SOCKET_TYPE m_socket;
  unsigned m_timeout_ms;
  bool m_timedout;
  unsigned m_timeout_remain;
public:
  SocketOutputStream(NDB_SOCKET_TYPE socket, unsigned write_timeout_ms = 1000);
  virtual ~SocketOutputStream() {}
  bool timedout() { return m_timedout; };
  void reset_timeout() { m_timedout= false; m_timeout_remain= m_timeout_ms;};

  int print(const char * fmt, ...);
  int println(const char * fmt, ...);
};

class NullOutputStream : public OutputStream {
public:
  NullOutputStream() {}
  virtual ~NullOutputStream() {}
  int print(const char * /* unused */, ...) { return 1;}
  int println(const char * /* unused */, ...) { return 1;}
};

#endif