include/monitor/program/SharedMemory.h

   1 /**
   2         Aesalon, a tool to visualize a program's behaviour at run-time.
   3         Copyright (C) 2010, Aesalon Development Team.
   4
   5         Aesalon is distributed under the terms of the GNU GPLv3. For more
   6         licensing information, see the file LICENSE included with the distribution.
   7
   8         @file include/monitor/program/SharedMemory.h
   9
  10 */
  11
  12 #ifndef AesalonMonitor_Program_SharedMemory_H
  13 #define AesalonMonitor_Program_SharedMemory_H
  14
  15 #include <string>
  16 #include <map>
  17
  18 #include "common/SharedMemoryHeader.h"
  19 #include "common/ZoneHeader.h"
  20
  21 namespace Monitor {
  22 namespace Program {
  23
  24 class SharedMemory {
  25 private:
  26         int m_fd;
  27         std::string m_shmName;
  28
  29         SharedMemoryHeader_t *m_header;
  30
  31         uint8_t *m_zoneUseData;
  32
  33         typedef std::map<uint32_t, uint8_t *> ZoneMap;
  34         ZoneMap m_zoneMap;
  35 public:
  36         SharedMemory();
  37         ~SharedMemory();
  38
  39         uint32_t zoneCount() const;
  40         uint8_t *zoneWithPacket();
  41
  42         void waitForPacket();
  43 private:
  44         uint8_t *zone(uint32_t id);
  45         void setupHeader();
  46         void setupConfiguration();
  47         void setupZones();
  48 };
  49
  50 } // namespace Program
  51 } // namespace Monitor
  52
  53 #endif