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1 /*
2  * \file       snapshot_reader.h
3  * \brief      OpenCSD : Snapshot Parser Library
4  *
5  * \copyright  Copyright (c) 2015, ARM Limited. All Rights Reserved.
6  */
7 
8 
9 /*
10  * Redistribution and use in source and binary forms, with or without modification,
11  * are permitted provided that the following conditions are met:
12  *
13  * 1. Redistributions of source code must retain the above copyright notice,
14  * this list of conditions and the following disclaimer.
15  *
16  * 2. Redistributions in binary form must reproduce the above copyright notice,
17  * this list of conditions and the following disclaimer in the documentation
18  * and/or other materials provided with the distribution.
19  *
20  * 3. Neither the name of the copyright holder nor the names of its contributors
21  * may be used to endorse or promote products derived from this software without
22  * specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' AND
25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
26  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
27  * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
28  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
29  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
30  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
31  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
33  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34  */
35 
36 #ifndef ARM_SNAPSHOT_READER_H_INCLUDED
37 #define ARM_SNAPSHOT_READER_H_INCLUDED
38 
39 #include <string>
40 #include <vector>
41 
42 #include "snapshot_parser.h"
43 
44 class ITraceErrorLog;
45 
46 class SnapShotReader
47 {
48 public:
49     SnapShotReader();
50     ~SnapShotReader();
51 
52     void setSnapshotDir(const std::string &dir);
getSnapShotDir()53     const std::string &getSnapShotDir() const { return m_snapshotPath; };
54 
55     const bool readSnapShot();    // read the snapshot dir
56 
57     // true if the snapshot ini file can be found on the path.
snapshotFound()58     const bool snapshotFound() const { return m_snapshot_found; };
59 
snapshotReadOK()60     const bool snapshotReadOK() const { return m_read_ok; };
61 
62     void setErrorLogger(ITraceErrorLog *err_log);
setVerboseOutput(const bool bVerbose)63     void setVerboseOutput(const bool bVerbose) { m_verbose = bVerbose; };
64 
65     bool getSourceBufferNameList(std::vector<std::string> &nameList);
66     bool getTraceBufferSourceTree(const std::string &traceBufferName, Parser::TraceBufferSourceTree &sourceTree);
67 
68     bool getDeviceData(const std::string &deviceName, Parser::Parsed **devData);
69 
70 private:
71     void checkPath();   // see if the ini file can be opened on the current path
72     void LogInfo(const std::string &msg);
73     void LogError(const std::string &msg);
74 
75 
76     std::string m_snapshotPath; // snapshot directory - default to cwd.
77     bool m_snapshot_found;  // true if the path supplied can be opened.
78     ITraceErrorLog *m_i_err_log;
79     ocsd_hndl_err_log_t m_errlog_handle;
80     bool m_verbose; // true for verbose output.
81     bool m_read_ok;
82 
83     // list of parsed device ini files, mapped by device name .
84     // <device_name (ETM_0 | cpu_0)> : { <parsed_device_data> }
85     std::map<std::string, Parser::Parsed> m_parsed_device_list;
86 
87     Parser::ParsedTrace m_parsed_trace; // the parsed trace meta data
88 
89     // trace metadata rearranged as source trees, mapped by source name
90     // <source_buffer_name> : { buffer_info, {<ETM_0:cpu_0>,....} }
91     std::map<std::string, Parser::TraceBufferSourceTree> m_source_trees;
92 };
93 
94 // the top level snapshot file name.
95 const char* const SnapshotINIFilename("snapshot.ini");
96 
97 #endif // ARM_SNAPSHOT_READER_H_INCLUDED
98 
99 /* End of File snapshot_reader.h */
100