IPCMat.h

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/*
  Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef TRKALGS_IPCMAT_H
#define TRKALGS_IPCMAT_H
 
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/msg.h>
#include <sys/wait.h>
#include <errno.h>
#include <stdint.h>
#include <unistd.h>
#include <string>
 
#define M_ALLOCATE         1
#define M_INCR_M           2
#define M_INCR_V           3
#define M_SCALE_M          4
#define M_SCALE_V          5
#define M_WRITE_M          6
#define M_WRITE_V          7
#define M_RESIZE           8
#define M_REMOVE_MOD       9
#define M_REMOVE_PAR      10
#define M_SETSCALE        12
#define M_SETVERSION      13
#define M_END            255
 
class StatusCode;
class IMessageSvc;
 
namespace Trk {

class IPCMat {
 
 public:
  IPCMat(IMessageSvc *msgSvc);
  ~IPCMat(){}
 
  IPCMat(const IPCMat&) = delete;
  IPCMat& operator= (const IPCMat&) = delete;
 
  StatusCode init(void);
  StatusCode allocate(int);
  StatusCode write(const std::string&,bool);
  StatusCode end();
  StatusCode incMat(uint32_t,uint32_t,double);
  StatusCode incVec(uint32_t,double);
  StatusCode scaleMat(int);
  StatusCode scaleVec(int);
  StatusCode setScale(int);
  StatusCode setVersion(float,bool);
  StatusCode reSize(int);
  StatusCode removeModule(int);
  StatusCode removeAlignPar(int);
 
  void summary();
 
 private:
  IPCMat(); // don't allow constructor without MessageSvc
 
  const std::string &name() const;
 
 private:
  IMessageSvc *m_msgSvc{};
  int m_ncalls{};
  int m_msgid{};
  std::string  m_name;
  MsgStream* m_log{};
  pid_t m_ipcmat_pid{};
 
  struct MsgBuf {
    long mtype;
    MsgBuf(): mtype(255), data{} {}
    union
    {
      char fname[100];
      uint32_t n;
      double scale;
      float version;
      struct
      {
        uint32_t i;
        uint32_t j;
        double   v;
      } matrix;
    } data;
 } m_ipcmat_msgp;
 
 
};
 
} // end namespace Trk
 
#endif // TRKALGS_IPCMAT_H