JackGraphManager.h
/*
Copyright (C) 2001 Paul Davis
Copyright (C) 2004-2008 Grame
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __JackGraphManager__
#define __JackGraphManager__
#include "JackShmMem.h"
#include "JackPort.h"
#include "JackConstants.h"
#include "JackConnectionManager.h"
#include "JackAtomicState.h"
#include "JackPlatformPlug.h"
#include "JackSystemDeps.h"
namespace Jack
{
PRE_PACKED_STRUCTURE
class SERVER_EXPORT JackGraphManager : public JackShmMem, public JackAtomicState<JackConnectionManager>
{
private:
unsigned int fPortMax;
JackClientTiming fClientTiming[CLIENT_NUM];
JackPort fPortArray[0]; // The actual size depends of port_max, it will be dynamically computed and allocated using "placement" new
void AssertPort(jack_port_id_t port_index);
jack_port_id_t AllocatePortAux(int refnum, const char* port_name, const char* port_type, JackPortFlags flags);
void GetConnectionsAux(JackConnectionManager* manager, const char** res, jack_port_id_t port_index);
void GetPortsAux(const char** matching_ports, const char* port_name_pattern, const char* type_name_pattern, unsigned long flags);
jack_default_audio_sample_t* GetBuffer(jack_port_id_t port_index);
void* GetBufferAux(JackConnectionManager* manager, jack_port_id_t port_index, jack_nframes_t frames);
jack_nframes_t ComputeTotalLatencyAux(jack_port_id_t port_index, jack_port_id_t src_port_index, JackConnectionManager* manager, int hop_count);
void RecalculateLatencyAux(jack_port_id_t port_index, jack_latency_callback_mode_t mode);
public:
JackGraphManager(int port_max);
~JackGraphManager()
{}
void SetBufferSize(jack_nframes_t buffer_size);
// Ports management
jack_port_id_t AllocatePort(int refnum, const char* port_name, const char* port_type, JackPortFlags flags, jack_nframes_t buffer_size);
int ReleasePort(int refnum, jack_port_id_t port_index);
void GetInputPorts(int refnum, jack_int_t* res);
void GetOutputPorts(int refnum, jack_int_t* res);
void RemoveAllPorts(int refnum);
void DisconnectAllPorts(int refnum);
JackPort* GetPort(jack_port_id_t index);
jack_port_id_t GetPort(const char* name);
int ComputeTotalLatency(jack_port_id_t port_index);
int ComputeTotalLatencies();
void RecalculateLatency(jack_port_id_t port_index, jack_latency_callback_mode_t mode);
int RequestMonitor(jack_port_id_t port_index, bool onoff);
// Connections management
int Connect(jack_port_id_t src_index, jack_port_id_t dst_index);
int Disconnect(jack_port_id_t src_index, jack_port_id_t dst_index);
int IsConnected(jack_port_id_t port_src, jack_port_id_t port_dst);
// RT, client
int GetConnectionsNum(jack_port_id_t port_index)
{
JackConnectionManager* manager = ReadCurrentState();
return manager->Connections(port_index);
}
const char** GetConnections(jack_port_id_t port_index);
void GetConnections(jack_port_id_t port_index, jack_int_t* connections); // TODO
const char** GetPorts(const char* port_name_pattern, const char* type_name_pattern, unsigned long flags);
int GetTwoPorts(const char* src, const char* dst, jack_port_id_t* src_index, jack_port_id_t* dst_index);
int CheckPorts(jack_port_id_t port_src, jack_port_id_t port_dst);
void DisconnectAllInput(jack_port_id_t port_index);
void DisconnectAllOutput(jack_port_id_t port_index);
int DisconnectAll(jack_port_id_t port_index);
bool IsDirectConnection(int ref1, int ref2);
void DirectConnect(int ref1, int ref2);
void DirectDisconnect(int ref1, int ref2);
void Activate(int refnum);
void Deactivate(int refnum);
int GetInputRefNum(jack_port_id_t port_index);
int GetOutputRefNum(jack_port_id_t port_index);
// Buffer management
void* GetBuffer(jack_port_id_t port_index, jack_nframes_t frames);
// Activation management
void RunCurrentGraph();
bool RunNextGraph();
bool IsFinishedGraph();
void InitRefNum(int refnum);
int ResumeRefNum(JackClientControl* control, JackSynchro* table);
int SuspendRefNum(JackClientControl* control, JackSynchro* table, long usecs);
void TopologicalSort(std::vector<jack_int_t>& sorted);
JackClientTiming* GetClientTiming(int refnum)
{
return &fClientTiming[refnum];
}
void Save(JackConnectionManager* dst);
void Restore(JackConnectionManager* src);
static JackGraphManager* Allocate(int port_max);
static void Destroy(JackGraphManager* manager);
} POST_PACKED_STRUCTURE;
} // end of namespace
#endif
Jack::JackConnectionManager
Connection manager.
Definition: JackConnectionManager.h:411
Jack
Definition: JackAC3Encoder.cpp:30
Jack::JackPort
Base class for port.
Definition: JackPort.h:39
Jack::JackPosixSemaphore
Inter process synchronization using POSIX semaphore.
Definition: JackPosixSemaphore.h:36
Jack::JackGraphManager
Graph manager: contains the connection manager and the port array.
Definition: JackGraphManager.h:40
Jack::JackAtomicState
A class to handle two states (switching from one to the other) in a lock-free manner.
Definition: JackAtomicState.h:90
Jack::JackClientTiming
For client timing measurements.
Definition: JackConnectionManager.h:374
Jack::JackShmMem
The base class for shared memory management.
Definition: JackShmMem.h:125
Jack::JackConnectionManager::Connections
jack_int_t Connections(jack_port_id_t port_index) const
Get the connection number of a given port.
Definition: JackConnectionManager.h:438
Jack::JackClientControl
Client control possibly in shared memory.
Definition: JackClientControl.h:38