source: flair-src/trunk/lib/FlairCore/src/unexported/ui_com.h

Last change on this file was 456, checked in by Sanahuja Guillaume, 8 weeks ago

refactor nb_buffering

File size: 2.7 KB
Line 
1// %flair:license{
2// This file is part of the Flair framework distributed under the
3// CECILL-C License, Version 1.0.
4// %flair:license}
5//  created:    2011/05/01
6//  filename:   ui_com.h
7//
8//  author:     Guillaume Sanahuja
9//              Copyright Heudiasyc UMR UTC/CNRS 7253
10//
11//  version:    $Id: $
12//
13//  purpose:    classe permettant la lecture et l'ecriture RT sur socket UDT
14//
15//
16/*********************************************************************/
17
18#ifndef UI_COM_H
19#define UI_COM_H
20
21#include "Thread.h"
22#include <udt.h>
23#ifdef __XENO__
24#include <native/pipe.h>
25#endif
26
27namespace flair {
28namespace core {
29class Mutex;
30class Object;
31}
32namespace gui {
33class SendData;
34}
35}
36
37class ui_com : public flair::core::Thread {
38public:
39  ui_com(const flair::core::Object *parent, UDTSOCKET sock);
40  ~ui_com();
41  //Send, public part
42  void Send(char *buf, ssize_t size,int ttl = -1);//ttl in ms, -1 for infinite
43  ssize_t Receive(char *buf, ssize_t buf_size);
44  void AddSendData(const flair::gui::SendData *obj);
45  void UpdateSendData(const flair::gui::SendData *obj);//must be called with mutex locked
46  void RemoveSendData(const flair::gui::SendData *obj);
47  void UpdateDataToSendBufferSize(const flair::gui::SendData *obj);
48  void Block(void);
49  void UnBlock(void);
50  bool ConnectionLost(void);
51  void CheckConnection(void);
52private:
53    //datasToSend and resumeTimes are pushed/pop together
54  std::vector<const flair::gui::SendData *> datasToSend;
55  std::vector<flair::core::Time> resumeTimes;
56  flair::core::Mutex *send_mutex;
57  UDTSOCKET socket_fd;
58  bool connection_lost;
59  void Run(void);
60  void SendDatas(void);
61  //private part, called to effectively send to udt
62  void SendNRT(char *buf, ssize_t size,int ttl);
63  void PushDatasToSend(const flair::gui::SendData *dataToSend);
64  void UpdateResumeTime(const flair::gui::SendData *obj);//must be called with mutex locked
65  typedef struct {
66    char* buf;
67    size_t actual_size;
68    size_t final_size;
69    uint16_t period;
70    uint16_t nb_buffering;
71  } PushedData_t;
72  std::vector<PushedData_t> pushedDatas;
73  size_t CalcBufferSize(const PushedData_t* ptr) const;//must be called with mutex locked
74  PushedData_t* GetCorrespondingPushedData(const flair::gui::SendData *dataToSend);//returns null if no corresponding buffer
75  void AddPushedData(const flair::gui::SendData *obj);
76
77
78  static int compressBuffer(char *in, ssize_t in_size, char **out,
79                            ssize_t *out_size, int level);
80  static int uncompressBuffer(unsigned char *in, ssize_t in_size,
81                              unsigned char **out, ssize_t *out_size);
82#ifdef __XENO__
83  bool is_running;
84  static void *user_thread(void *arg);
85  pthread_t thread;
86  RT_PIPE pipe;
87#endif
88};
89
90#endif // UI_COM_H
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