zoneminder/src/zm_fifo.h

//
// ZoneMinder Fifo
// Copyright (C) 2019 ZoneMinder LLC
//
// 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; either version 2
// of the License, or (at your option) any later version.
//
// 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
#ifndef ZM_FIFO_H
#define ZM_FIFO_H

#include "zm_stream.h"
#include "zm_packet.h"

class Monitor;

class Fifo {
 private:
   std::string path;
   int total_read;
   int bytes_read;
   bool on_blocking_abort;
   FILE *outfile;
   int raw_fd;

 public:
   static void file_create_if_missing(
       const char * path,
       bool is_fifo,
       bool delete_fake_fifo = true
       );

    Fifo() : 
      total_read(0),
      bytes_read(0),
      on_blocking_abort(true),
      outfile(nullptr),
      raw_fd(-1)
    {}
    Fifo(const char *p_path, bool p_on_blocking_abort) :
      path(p_path),
      total_read(0),
      bytes_read(0),
      on_blocking_abort(p_on_blocking_abort),
      outfile(nullptr),
      raw_fd(-1)
    {}
    ~Fifo();

    static void fifo_create_if_missing(
        const char * path,
        bool delete_fake_fifo = true);



    static bool writePacket(std::string filename, ZMPacket &packet);
    static bool write(std::string filename, uint8_t *data, size_t size);

    bool open();
    bool close();

    bool writePacket(ZMPacket &packet);
    bool write(uint8_t *data, size_t size, int64_t pts);
};
#endif  // ZM_FIFO_H