source: pacpusframework/trunk/3rd/apache-log4cxx/include/log4cxx/helpers/fileinputstream.h@ 178

Last change on this file since 178 was 89, checked in by morasjul, 11 years ago

PACPUS 2.0 Beta deployed in new branch

Major changes:
-Add communication interface between components
-Add examples for communications interface (TestComponents)
-Move to Qt5 support

  • Property svn:executable set to *
File size: 3.4 KB
Line 
1/*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18#ifndef _LOG4CXX_HELPERS_FILEINPUTSTREAM_H
19#define _LOG4CXX_HELPERS_FILEINPUTSTREAM_H
20
21#include <log4cxx/helpers/inputstream.h>
22#include <log4cxx/file.h>
23#include <log4cxx/helpers/pool.h>
24
25
26namespace log4cxx
27{
28
29 namespace helpers {
30
31 /**
32 * InputStream implemented on top of APR file IO.
33 *
34 */
35 class LOG4CXX_EXPORT FileInputStream : public InputStream
36 {
37 private:
38 Pool pool;
39 apr_file_t* fileptr;
40
41 public:
42 DECLARE_ABSTRACT_LOG4CXX_OBJECT(FileInputStream)
43 BEGIN_LOG4CXX_CAST_MAP()
44 LOG4CXX_CAST_ENTRY(FileInputStream)
45 LOG4CXX_CAST_ENTRY_CHAIN(InputStream)
46 END_LOG4CXX_CAST_MAP()
47
48 /**
49 * Creates a FileInputStream by opening a connection to an actual
50 * file, the file named by the path name name in the file system.
51 *
52 * @param filename The system-dependent file name.
53 */
54 FileInputStream(const LogString& filename);
55 FileInputStream(const logchar* filename);
56
57 /**
58 * Creates a FileInputStream by opening a connection to an actual
59 * file, the file named by the File object file in the file system.
60 *
61 * @param aFile The file to be opened for reading.
62 */
63 FileInputStream(const File& aFile);
64
65 virtual ~FileInputStream();
66
67 /**
68 * Closes this file input stream and releases any system
69 * resources associated with the stream.
70 */
71 virtual void close();
72
73 /**
74 * Reads a sequence of bytes into the given buffer.
75 *
76 * @param buf The buffer into which bytes are to be transferred.
77 * @return the total number of bytes read into the buffer, or -1 if there
78 * is no more data because the end of the stream has been reached.
79 */
80 virtual int read(ByteBuffer& buf);
81
82 private:
83
84 FileInputStream(const FileInputStream&);
85
86 FileInputStream& operator=(const FileInputStream&);
87 void open(const LogString&);
88
89 };
90
91 LOG4CXX_PTR_DEF(FileInputStream);
92 } // namespace helpers
93
94} //namespace log4cxx
95
96#endif //_LOG4CXX_HELPERS_FILEINPUTSTREAM_H
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