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<h1>JackServer.cpp</h1> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment">Copyright (C) 2001 Paul Davis</span>
<a name="l00003"></a>00003 <span class="comment">Copyright (C) 2004-2008 Grame</span>
<a name="l00004"></a>00004 <span class="comment"></span>
<a name="l00005"></a>00005 <span class="comment">This program is free software; you can redistribute it and/or modify</span>
<a name="l00006"></a>00006 <span class="comment">it under the terms of the GNU General Public License as published by</span>
<a name="l00007"></a>00007 <span class="comment">the Free Software Foundation; either version 2 of the License, or</span>
<a name="l00008"></a>00008 <span class="comment">(at your option) any later version.</span>
<a name="l00009"></a>00009 <span class="comment"></span>
<a name="l00010"></a>00010 <span class="comment">This program is distributed in the hope that it will be useful,</span>
<a name="l00011"></a>00011 <span class="comment">but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00012"></a>00012 <span class="comment">MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="l00013"></a>00013 <span class="comment">GNU General Public License for more details.</span>
<a name="l00014"></a>00014 <span class="comment"></span>
<a name="l00015"></a>00015 <span class="comment">You should have received a copy of the GNU General Public License</span>
<a name="l00016"></a>00016 <span class="comment">along with this program; if not, write to the Free Software</span>
<a name="l00017"></a>00017 <span class="comment">Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.</span>
<a name="l00018"></a>00018 <span class="comment"></span>
<a name="l00019"></a>00019 <span class="comment">*/</span>
<a name="l00020"></a>00020
<a name="l00021"></a>00021 <span class="preprocessor">#include "JackSystemDeps.h"</span>
<a name="l00022"></a>00022 <span class="preprocessor">#include "JackServerGlobals.h"</span>
<a name="l00023"></a>00023 <span class="preprocessor">#include "JackTime.h"</span>
<a name="l00024"></a>00024 <span class="preprocessor">#include "JackFreewheelDriver.h"</span>
<a name="l00025"></a>00025 <span class="preprocessor">#include "JackDummyDriver.h"</span>
<a name="l00026"></a>00026 <span class="preprocessor">#include "JackThreadedDriver.h"</span>
<a name="l00027"></a>00027 <span class="preprocessor">#include "JackGlobals.h"</span>
<a name="l00028"></a>00028 <span class="preprocessor">#include "JackLockedEngine.h"</span>
<a name="l00029"></a>00029 <span class="preprocessor">#include "JackAudioDriver.h"</span>
<a name="l00030"></a>00030 <span class="preprocessor">#include "JackChannel.h"</span>
<a name="l00031"></a>00031 <span class="preprocessor">#include "JackClientControl.h"</span>
<a name="l00032"></a>00032 <span class="preprocessor">#include "JackEngineControl.h"</span>
<a name="l00033"></a>00033 <span class="preprocessor">#include "JackGraphManager.h"</span>
<a name="l00034"></a>00034 <span class="preprocessor">#include "JackInternalClient.h"</span>
<a name="l00035"></a>00035 <span class="preprocessor">#include "JackError.h"</span>
<a name="l00036"></a>00036 <span class="preprocessor">#include "JackMessageBuffer.h"</span>
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <span class="keyword">namespace </span>Jack
<a name="l00039"></a>00039 {
<a name="l00040"></a>00040
<a name="l00041"></a>00041 JackServer::JackServer(<span class="keywordtype">bool</span> sync, <span class="keywordtype">bool</span> temporary, <span class="keywordtype">int</span> timeout, <span class="keywordtype">bool</span> rt, <span class="keywordtype">int</span> priority, <span class="keywordtype">int</span> port_max, <span class="keywordtype">bool</span> verbose, jack_timer_type_t clock, <span class="keyword">const</span> <span class="keywordtype">char</span>* server_name)
<a name="l00042"></a>00042 {
<a name="l00043"></a>00043 <span class="keywordflow">if</span> (rt) {
<a name="l00044"></a>00044 <a class="code" href="group__ServerControl.html#ga21328fd378306e0da7270952196eb717">jack_info</a>(<span class="stringliteral">"JACK server starting in realtime mode with priority %ld"</span>, priority);
<a name="l00045"></a>00045 } <span class="keywordflow">else</span> {
<a name="l00046"></a>00046 <a class="code" href="group__ServerControl.html#ga21328fd378306e0da7270952196eb717">jack_info</a>(<span class="stringliteral">"JACK server starting in non-realtime mode"</span>);
<a name="l00047"></a>00047 }
<a name="l00048"></a>00048
<a name="l00049"></a>00049 fGraphManager = JackGraphManager::Allocate(port_max);
<a name="l00050"></a>00050 fEngineControl = <span class="keyword">new</span> JackEngineControl(sync, temporary, timeout, rt, priority, verbose, clock, server_name);
<a name="l00051"></a>00051 fEngine = <span class="keyword">new</span> JackLockedEngine(fGraphManager, GetSynchroTable(), fEngineControl);
<a name="l00052"></a>00052
<a name="l00053"></a>00053 <span class="comment">// A distinction is made between the threaded freewheel driver and the</span>
<a name="l00054"></a>00054 <span class="comment">// regular freewheel driver because the freewheel driver needs to run in</span>
<a name="l00055"></a>00055 <span class="comment">// threaded mode when freewheel mode is active and needs to run as a slave</span>
<a name="l00056"></a>00056 <span class="comment">// when freewheel mode isn't active.</span>
<a name="l00057"></a>00057 JackFreewheelDriver *freewheelDriver =
<a name="l00058"></a>00058 <span class="keyword">new</span> JackFreewheelDriver(fEngine, GetSynchroTable());
<a name="l00059"></a>00059 fThreadedFreewheelDriver = <span class="keyword">new</span> JackThreadedDriver(freewheelDriver);
<a name="l00060"></a>00060
<a name="l00061"></a>00061 fFreewheelDriver = freewheelDriver;
<a name="l00062"></a>00062 fDriverInfo = <span class="keyword">new</span> <a class="code" href="classJackDriverInfo.html">JackDriverInfo</a>();
<a name="l00063"></a>00063 fAudioDriver = NULL;
<a name="l00064"></a>00064 fFreewheel = <span class="keyword">false</span>;
<a name="l00065"></a>00065 JackServerGlobals::fInstance = <span class="keyword">this</span>; <span class="comment">// Unique instance</span>
<a name="l00066"></a>00066 JackServerGlobals::fUserCount = 1; <span class="comment">// One user</span>
<a name="l00067"></a>00067 JackGlobals::fVerbose = verbose;
<a name="l00068"></a>00068 }
<a name="l00069"></a>00069
<a name="l00070"></a>00070 JackServer::~JackServer()
<a name="l00071"></a>00071 {
<a name="l00072"></a>00072 JackGraphManager::Destroy(fGraphManager);
<a name="l00073"></a>00073 <span class="keyword">delete</span> fDriverInfo;
<a name="l00074"></a>00074 <span class="keyword">delete</span> fThreadedFreewheelDriver;
<a name="l00075"></a>00075 <span class="keyword">delete</span> fEngine;
<a name="l00076"></a>00076 <span class="keyword">delete</span> fEngineControl;
<a name="l00077"></a>00077 }
<a name="l00078"></a>00078
<a name="l00079"></a>00079 <span class="keywordtype">int</span> JackServer::Open(<a class="code" href="structjack__driver__desc__t.html">jack_driver_desc_t</a>* driver_desc, <a class="code" href="struct__JSList.html">JSList</a>* driver_params)
<a name="l00080"></a>00080 {
<a name="l00081"></a>00081 <span class="comment">// TODO: move that in reworked JackServerGlobals::Init()</span>
<a name="l00082"></a>00082 JackMessageBuffer::Create();
<a name="l00083"></a>00083
<a name="l00084"></a>00084 <span class="keywordflow">if</span> ((fAudioDriver = fDriverInfo->Open(driver_desc, fEngine, GetSynchroTable(), driver_params)) == NULL) {
<a name="l00085"></a>00085 <a class="code" href="group__ServerControl.html#gac6448626e0b75fc6d9da1ccbdca0355e">jack_error</a>(<span class="stringliteral">"Cannot initialize driver"</span>);
<a name="l00086"></a>00086 <span class="keywordflow">goto</span> fail_close1;
<a name="l00087"></a>00087 }
<a name="l00088"></a>00088
<a name="l00089"></a>00089 <span class="keywordflow">if</span> (fChannel.Open(fEngineControl->fServerName, <span class="keyword">this</span>) < 0) {
<a name="l00090"></a>00090 <a class="code" href="group__ServerControl.html#gac6448626e0b75fc6d9da1ccbdca0355e">jack_error</a>(<span class="stringliteral">"Server channel open error"</span>);
<a name="l00091"></a>00091 <span class="keywordflow">goto</span> fail_close2;
<a name="l00092"></a>00092 }
<a name="l00093"></a>00093
<a name="l00094"></a>00094 <span class="keywordflow">if</span> (fEngine->Open() < 0) {
<a name="l00095"></a>00095 <a class="code" href="group__ServerControl.html#gac6448626e0b75fc6d9da1ccbdca0355e">jack_error</a>(<span class="stringliteral">"Cannot open engine"</span>);
<a name="l00096"></a>00096 <span class="keywordflow">goto</span> fail_close3;
<a name="l00097"></a>00097 }
<a name="l00098"></a>00098
<a name="l00099"></a>00099 <span class="keywordflow">if</span> (fFreewheelDriver->Open() < 0) {
<a name="l00100"></a>00100 <a class="code" href="group__ServerControl.html#gac6448626e0b75fc6d9da1ccbdca0355e">jack_error</a>(<span class="stringliteral">"Cannot open freewheel driver"</span>);
<a name="l00101"></a>00101 <span class="keywordflow">goto</span> fail_close4;
<a name="l00102"></a>00102 }
<a name="l00103"></a>00103
<a name="l00104"></a>00104 <span class="keywordflow">if</span> (fAudioDriver->Attach() < 0) {
<a name="l00105"></a>00105 <a class="code" href="group__ServerControl.html#gac6448626e0b75fc6d9da1ccbdca0355e">jack_error</a>(<span class="stringliteral">"Cannot attach audio driver"</span>);
<a name="l00106"></a>00106 <span class="keywordflow">goto</span> fail_close5;
<a name="l00107"></a>00107 }
<a name="l00108"></a>00108
<a name="l00109"></a>00109 fFreewheelDriver->SetMaster(<span class="keyword">false</span>);
<a name="l00110"></a>00110 fAudioDriver->SetMaster(<span class="keyword">true</span>);
<a name="l00111"></a>00111 fAudioDriver->AddSlave(fFreewheelDriver);
<a name="l00112"></a>00112 InitTime();
<a name="l00113"></a>00113 SetClockSource(fEngineControl->fClockSource);
<a name="l00114"></a>00114 <span class="keywordflow">return</span> 0;
<a name="l00115"></a>00115
<a name="l00116"></a>00116 fail_close5:
<a name="l00117"></a>00117 fFreewheelDriver->Close();
<a name="l00118"></a>00118
<a name="l00119"></a>00119 fail_close4:
<a name="l00120"></a>00120 fEngine->Close();
<a name="l00121"></a>00121
<a name="l00122"></a>00122 fail_close3:
<a name="l00123"></a>00123 fChannel.Close();
<a name="l00124"></a>00124
<a name="l00125"></a>00125 fail_close2:
<a name="l00126"></a>00126 fAudioDriver->Close();
<a name="l00127"></a>00127
<a name="l00128"></a>00128 fail_close1:
<a name="l00129"></a>00129 JackMessageBuffer::Destroy();
<a name="l00130"></a>00130 <span class="keywordflow">return</span> -1;
<a name="l00131"></a>00131 }
<a name="l00132"></a>00132
<a name="l00133"></a>00133 <span class="keywordtype">int</span> JackServer::Close()
<a name="l00134"></a>00134 {
<a name="l00135"></a>00135 <a class="code" href="group__ServerControl.html#ga35f69faaee3bb9b958ed8c9a5f62246c">jack_log</a>(<span class="stringliteral">"JackServer::Close"</span>);
<a name="l00136"></a>00136 fEngine->NotifyQuit();
<a name="l00137"></a>00137 fChannel.Close();
<a name="l00138"></a>00138 fAudioDriver->Detach();
<a name="l00139"></a>00139 fAudioDriver->Close();
<a name="l00140"></a>00140 fFreewheelDriver->Close();
<a name="l00141"></a>00141 fEngine->Close();
<a name="l00142"></a>00142 <span class="comment">// TODO: move that in reworked JackServerGlobals::Destroy()</span>
<a name="l00143"></a>00143 JackMessageBuffer::Destroy();
<a name="l00144"></a>00144 <span class="keywordflow">return</span> 0;
<a name="l00145"></a>00145 }
<a name="l00146"></a>00146
<a name="l00147"></a>00147 <span class="keywordtype">int</span> JackServer::InternalClientLoad1(<span class="keyword">const</span> <span class="keywordtype">char</span>* client_name, <span class="keyword">const</span> <span class="keywordtype">char</span>* so_name, <span class="keyword">const</span> <span class="keywordtype">char</span>* objet_data, <span class="keywordtype">int</span> options, <span class="keywordtype">int</span>* int_ref, <span class="keywordtype">int</span> uuid, <span class="keywordtype">int</span>* status)
<a name="l00148"></a>00148 {
<a name="l00149"></a>00149 JackLoadableInternalClient* client = <span class="keyword">new</span> JackLoadableInternalClient1(JackServerGlobals::fInstance, GetSynchroTable(), objet_data);
<a name="l00150"></a>00150 assert(client);
<a name="l00151"></a>00151 <span class="keywordflow">return</span> InternalClientLoadAux(client, so_name, client_name, options, int_ref, uuid, status);
<a name="l00152"></a>00152 }
<a name="l00153"></a>00153
<a name="l00154"></a>00154 <span class="keywordtype">int</span> JackServer::InternalClientLoad2(<span class="keyword">const</span> <span class="keywordtype">char</span>* client_name, <span class="keyword">const</span> <span class="keywordtype">char</span>* so_name, <span class="keyword">const</span> <a class="code" href="struct__JSList.html">JSList</a> * parameters, <span class="keywordtype">int</span> options, <span class="keywordtype">int</span>* int_ref, <span class="keywordtype">int</span> uuid, <span class="keywordtype">int</span>* status)
<a name="l00155"></a>00155 {
<a name="l00156"></a>00156 JackLoadableInternalClient* client = <span class="keyword">new</span> JackLoadableInternalClient2(JackServerGlobals::fInstance, GetSynchroTable(), parameters);
<a name="l00157"></a>00157 assert(client);
<a name="l00158"></a>00158 <span class="keywordflow">return</span> InternalClientLoadAux(client, so_name, client_name, options, int_ref, uuid, status);
<a name="l00159"></a>00159 }
<a name="l00160"></a>00160
<a name="l00161"></a>00161 <span class="keywordtype">int</span> JackServer::InternalClientLoadAux(JackLoadableInternalClient* client, <span class="keyword">const</span> <span class="keywordtype">char</span>* so_name, <span class="keyword">const</span> <span class="keywordtype">char</span>* client_name, <span class="keywordtype">int</span> options, <span class="keywordtype">int</span>* int_ref, <span class="keywordtype">int</span> uuid, <span class="keywordtype">int</span>* status)
<a name="l00162"></a>00162 {
<a name="l00163"></a>00163 <span class="comment">// Clear status</span>
<a name="l00164"></a>00164 *status = 0;
<a name="l00165"></a>00165
<a name="l00166"></a>00166 <span class="comment">// Client object is internally kept in JackEngine</span>
<a name="l00167"></a>00167 <span class="keywordflow">if</span> ((client->Init(so_name) < 0) || (client->Open(JACK_DEFAULT_SERVER_NAME, client_name, uuid, (jack_options_t)options, (jack_status_t*)status) < 0)) {
<a name="l00168"></a>00168 <span class="keyword">delete</span> client;
<a name="l00169"></a>00169 <span class="keywordtype">int</span> my_status1 = *status | JackFailure;
<a name="l00170"></a>00170 *status = (jack_status_t)my_status1;
<a name="l00171"></a>00171 *int_ref = 0;
<a name="l00172"></a>00172 <span class="keywordflow">return</span> -1;
<a name="l00173"></a>00173 } <span class="keywordflow">else</span> {
<a name="l00174"></a>00174 *int_ref = client->GetClientControl()->fRefNum;
<a name="l00175"></a>00175 <span class="keywordflow">return</span> 0;
<a name="l00176"></a>00176 }
<a name="l00177"></a>00177 }
<a name="l00178"></a>00178
<a name="l00179"></a>00179 <span class="keywordtype">int</span> JackServer::Start()
<a name="l00180"></a>00180 {
<a name="l00181"></a>00181 <a class="code" href="group__ServerControl.html#ga35f69faaee3bb9b958ed8c9a5f62246c">jack_log</a>(<span class="stringliteral">"JackServer::Start"</span>);
<a name="l00182"></a>00182 <span class="keywordflow">if</span> (fAudioDriver->Start() < 0) {
<a name="l00183"></a>00183 <span class="keywordflow">return</span> -1;
<a name="l00184"></a>00184 }
<a name="l00185"></a>00185 <span class="keywordflow">return</span> fChannel.Start();
<a name="l00186"></a>00186 }
<a name="l00187"></a>00187
<a name="l00188"></a>00188 <span class="keywordtype">int</span> JackServer::Stop()
<a name="l00189"></a>00189 {
<a name="l00190"></a>00190 <a class="code" href="group__ServerControl.html#ga35f69faaee3bb9b958ed8c9a5f62246c">jack_log</a>(<span class="stringliteral">"JackServer::Stop"</span>);
<a name="l00191"></a>00191 <span class="keywordflow">if</span> (fFreewheel) {
<a name="l00192"></a>00192 <span class="keywordflow">return</span> fThreadedFreewheelDriver->Stop();
<a name="l00193"></a>00193 } <span class="keywordflow">else</span> {
<a name="l00194"></a>00194 <span class="keywordflow">return</span> fAudioDriver->Stop();
<a name="l00195"></a>00195 }
<a name="l00196"></a>00196 }
<a name="l00197"></a>00197
<a name="l00198"></a>00198 <span class="keywordtype">bool</span> JackServer::IsRunning()
<a name="l00199"></a>00199 {
<a name="l00200"></a>00200 <a class="code" href="group__ServerControl.html#ga35f69faaee3bb9b958ed8c9a5f62246c">jack_log</a>(<span class="stringliteral">"JackServer::IsRunning"</span>);
<a name="l00201"></a>00201 assert(fAudioDriver);
<a name="l00202"></a>00202 <span class="keywordflow">return</span> fAudioDriver->IsRunning();
<a name="l00203"></a>00203 }
<a name="l00204"></a>00204
<a name="l00205"></a>00205 <span class="keywordtype">int</span> JackServer::SetBufferSize(jack_nframes_t buffer_size)
<a name="l00206"></a>00206 {
<a name="l00207"></a>00207 <a class="code" href="group__ServerControl.html#ga35f69faaee3bb9b958ed8c9a5f62246c">jack_log</a>(<span class="stringliteral">"JackServer::SetBufferSize nframes = %ld"</span>, buffer_size);
<a name="l00208"></a>00208 jack_nframes_t current_buffer_size = fEngineControl->fBufferSize;
<a name="l00209"></a>00209
<a name="l00210"></a>00210 <span class="keywordflow">if</span> (current_buffer_size == buffer_size) {
<a name="l00211"></a>00211 <a class="code" href="group__ServerControl.html#ga35f69faaee3bb9b958ed8c9a5f62246c">jack_log</a>(<span class="stringliteral">"SetBufferSize: requirement for new buffer size equals current value"</span>);
<a name="l00212"></a>00212 <span class="keywordflow">return</span> 0;
<a name="l00213"></a>00213 }
<a name="l00214"></a>00214
<a name="l00215"></a>00215 <span class="keywordflow">if</span> (fAudioDriver->IsFixedBufferSize()) {
<a name="l00216"></a>00216 <a class="code" href="group__ServerControl.html#ga35f69faaee3bb9b958ed8c9a5f62246c">jack_log</a>(<span class="stringliteral">"SetBufferSize: driver only supports a fixed buffer size"</span>);
<a name="l00217"></a>00217 <span class="keywordflow">return</span> -1;
<a name="l00218"></a>00218 }
<a name="l00219"></a>00219
<a name="l00220"></a>00220 <span class="keywordflow">if</span> (fAudioDriver->Stop() != 0) {
<a name="l00221"></a>00221 <a class="code" href="group__ServerControl.html#gac6448626e0b75fc6d9da1ccbdca0355e">jack_error</a>(<span class="stringliteral">"Cannot stop audio driver"</span>);
<a name="l00222"></a>00222 <span class="keywordflow">return</span> -1;
<a name="l00223"></a>00223 }
<a name="l00224"></a>00224
<a name="l00225"></a>00225 <span class="keywordflow">if</span> (fAudioDriver->SetBufferSize(buffer_size) == 0) {
<a name="l00226"></a>00226 fFreewheelDriver->SetBufferSize(buffer_size);
<a name="l00227"></a>00227 fEngine->NotifyBufferSize(buffer_size);
<a name="l00228"></a>00228 <span class="keywordflow">return</span> fAudioDriver->Start();
<a name="l00229"></a>00229 } <span class="keywordflow">else</span> { <span class="comment">// Failure: try to restore current value</span>
<a name="l00230"></a>00230 <a class="code" href="group__ServerControl.html#gac6448626e0b75fc6d9da1ccbdca0355e">jack_error</a>(<span class="stringliteral">"Cannot SetBufferSize for audio driver, restore current value %ld"</span>, current_buffer_size);
<a name="l00231"></a>00231 fAudioDriver->SetBufferSize(current_buffer_size);
<a name="l00232"></a>00232 fFreewheelDriver->SetBufferSize(current_buffer_size);
<a name="l00233"></a>00233 fAudioDriver->Start();
<a name="l00234"></a>00234 <span class="comment">// SetBufferSize actually failed, so return an error...</span>
<a name="l00235"></a>00235 <span class="keywordflow">return</span> -1;
<a name="l00236"></a>00236 }
<a name="l00237"></a>00237 }
<a name="l00238"></a>00238
<a name="l00239"></a>00239 <span class="comment">/*</span>
<a name="l00240"></a>00240 <span class="comment">Freewheel mode is implemented by switching from the (audio + freewheel) driver to the freewheel driver only:</span>
<a name="l00241"></a>00241 <span class="comment"></span>
<a name="l00242"></a>00242 <span class="comment"> - "global" connection state is saved</span>
<a name="l00243"></a>00243 <span class="comment"> - all audio driver ports are deconnected, thus there is no more dependancies with the audio driver</span>
<a name="l00244"></a>00244 <span class="comment"> - the freewheel driver will be synchronized with the end of graph execution : all clients are connected to the freewheel driver</span>
<a name="l00245"></a>00245 <span class="comment"> - the freewheel driver becomes the "master"</span>
<a name="l00246"></a>00246 <span class="comment"></span>
<a name="l00247"></a>00247 <span class="comment">Normal mode is restored with the connections state valid before freewheel mode was done. Thus one consider that</span>
<a name="l00248"></a>00248 <span class="comment">no graph state change can be done during freewheel mode.</span>
<a name="l00249"></a>00249 <span class="comment">*/</span>
<a name="l00250"></a>00250
<a name="l00251"></a>00251 <span class="keywordtype">int</span> JackServer::SetFreewheel(<span class="keywordtype">bool</span> onoff)
<a name="l00252"></a>00252 {
<a name="l00253"></a>00253 <a class="code" href="group__ServerControl.html#ga35f69faaee3bb9b958ed8c9a5f62246c">jack_log</a>(<span class="stringliteral">"JackServer::SetFreewheel is = %ld want = %ld"</span>, fFreewheel, onoff);
<a name="l00254"></a>00254
<a name="l00255"></a>00255 <span class="keywordflow">if</span> (fFreewheel) {
<a name="l00256"></a>00256 <span class="keywordflow">if</span> (onoff) {
<a name="l00257"></a>00257 <span class="keywordflow">return</span> -1;
<a name="l00258"></a>00258 } <span class="keywordflow">else</span> {
<a name="l00259"></a>00259 fFreewheel = <span class="keyword">false</span>;
<a name="l00260"></a>00260 fThreadedFreewheelDriver->Stop();
<a name="l00261"></a>00261 fGraphManager->Restore(&fConnectionState); <span class="comment">// Restore previous connection state</span>
<a name="l00262"></a>00262 fEngine->NotifyFreewheel(onoff);
<a name="l00263"></a>00263 fFreewheelDriver->SetMaster(<span class="keyword">false</span>);
<a name="l00264"></a>00264 fAudioDriver->SetMaster(<span class="keyword">true</span>);
<a name="l00265"></a>00265 <span class="keywordflow">return</span> fAudioDriver->Start();
<a name="l00266"></a>00266 }
<a name="l00267"></a>00267 } <span class="keywordflow">else</span> {
<a name="l00268"></a>00268 <span class="keywordflow">if</span> (onoff) {
<a name="l00269"></a>00269 fFreewheel = <span class="keyword">true</span>;
<a name="l00270"></a>00270 fAudioDriver->Stop();
<a name="l00271"></a>00271 fGraphManager->Save(&fConnectionState); <span class="comment">// Save connection state</span>
<a name="l00272"></a>00272 fGraphManager->DisconnectAllPorts(fAudioDriver->GetClientControl()->fRefNum);
<a name="l00273"></a>00273 fEngine->NotifyFreewheel(onoff);
<a name="l00274"></a>00274 fAudioDriver->SetMaster(<span class="keyword">false</span>);
<a name="l00275"></a>00275 fFreewheelDriver->SetMaster(<span class="keyword">true</span>);
<a name="l00276"></a>00276 <span class="keywordflow">return</span> fThreadedFreewheelDriver->Start();
<a name="l00277"></a>00277 } <span class="keywordflow">else</span> {
<a name="l00278"></a>00278 <span class="keywordflow">return</span> -1;
<a name="l00279"></a>00279 }
<a name="l00280"></a>00280 }
<a name="l00281"></a>00281 }
<a name="l00282"></a>00282
<a name="l00283"></a>00283 <span class="comment">// Coming from the RT thread</span>
<a name="l00284"></a>00284 <span class="keywordtype">void</span> JackServer::Notify(<span class="keywordtype">int</span> refnum, <span class="keywordtype">int</span> notify, <span class="keywordtype">int</span> value)
<a name="l00285"></a>00285 {
<a name="l00286"></a>00286 <span class="keywordflow">switch</span> (notify) {
<a name="l00287"></a>00287
<a name="l00288"></a>00288 <span class="keywordflow">case</span> kGraphOrderCallback:
<a name="l00289"></a>00289 fEngine->NotifyGraphReorder();
<a name="l00290"></a>00290 <span class="keywordflow">break</span>;
<a name="l00291"></a>00291
<a name="l00292"></a>00292 <span class="keywordflow">case</span> kXRunCallback:
<a name="l00293"></a>00293 fEngine->NotifyXRun(refnum);
<a name="l00294"></a>00294 <span class="keywordflow">break</span>;
<a name="l00295"></a>00295 }
<a name="l00296"></a>00296 }
<a name="l00297"></a>00297
<a name="l00298"></a>00298 <span class="keywordtype">void</span> JackServer::ClientKill(<span class="keywordtype">int</span> refnum)
<a name="l00299"></a>00299 {
<a name="l00300"></a>00300 <a class="code" href="group__ServerControl.html#ga35f69faaee3bb9b958ed8c9a5f62246c">jack_log</a>(<span class="stringliteral">"JackServer::ClientKill ref = %ld"</span>, refnum);
<a name="l00301"></a>00301 <span class="keywordflow">if</span> (fEngine->ClientDeactivate(refnum) < 0) {
<a name="l00302"></a>00302 <a class="code" href="group__ServerControl.html#gac6448626e0b75fc6d9da1ccbdca0355e">jack_error</a>(<span class="stringliteral">"JackServer::ClientKill ref = %ld cannot be removed from the graph !!"</span>, refnum);
<a name="l00303"></a>00303 }
<a name="l00304"></a>00304 <span class="keywordflow">if</span> (fEngine->ClientExternalClose(refnum) < 0) {
<a name="l00305"></a>00305 <a class="code" href="group__ServerControl.html#gac6448626e0b75fc6d9da1ccbdca0355e">jack_error</a>(<span class="stringliteral">"JackServer::ClientKill ref = %ld cannot be closed"</span>, refnum);
<a name="l00306"></a>00306 }
<a name="l00307"></a>00307 }
<a name="l00308"></a>00308
<a name="l00309"></a>00309 <span class="comment">//----------------------</span>
<a name="l00310"></a>00310 <span class="comment">// Backend management</span>
<a name="l00311"></a>00311 <span class="comment">//----------------------</span>
<a name="l00312"></a>00312
<a name="l00313"></a>00313 <a class="code" href="classJackDriverInfo.html">JackDriverInfo</a>* JackServer::AddSlave(<a class="code" href="structjack__driver__desc__t.html">jack_driver_desc_t</a>* driver_desc, <a class="code" href="struct__JSList.html">JSList</a>* driver_params)
<a name="l00314"></a>00314 {
<a name="l00315"></a>00315 <a class="code" href="classJackDriverInfo.html">JackDriverInfo</a>* info = <span class="keyword">new</span> <a class="code" href="classJackDriverInfo.html">JackDriverInfo</a>();
<a name="l00316"></a>00316 JackDriverClientInterface* slave = info->Open(driver_desc, fEngine, GetSynchroTable(), driver_params);
<a name="l00317"></a>00317 <span class="keywordflow">if</span> (slave == NULL) {
<a name="l00318"></a>00318 <span class="keyword">delete</span> info;
<a name="l00319"></a>00319 <span class="keywordflow">return</span> NULL;
<a name="l00320"></a>00320 }
<a name="l00321"></a>00321 slave->Attach();
<a name="l00322"></a>00322 slave->SetMaster(<span class="keyword">false</span>);
<a name="l00323"></a>00323 fAudioDriver->AddSlave(slave);
<a name="l00324"></a>00324 <span class="keywordflow">return</span> info;
<a name="l00325"></a>00325 }
<a name="l00326"></a>00326
<a name="l00327"></a>00327 <span class="keywordtype">void</span> JackServer::RemoveSlave(<a class="code" href="classJackDriverInfo.html">JackDriverInfo</a>* info)
<a name="l00328"></a>00328 {
<a name="l00329"></a>00329 JackDriverClientInterface* slave = info->GetBackend();
<a name="l00330"></a>00330 fAudioDriver->RemoveSlave(slave);
<a name="l00331"></a>00331 slave->Detach();
<a name="l00332"></a>00332 slave->Close();
<a name="l00333"></a>00333 }
<a name="l00334"></a>00334
<a name="l00335"></a><a class="code" href="classJack_1_1JackServer.html#a61d163dbe6766491096c1e28564a69c8">00335</a> <span class="keywordtype">int</span> <a class="code" href="classJack_1_1JackServer.html#a61d163dbe6766491096c1e28564a69c8">JackServer::SwitchMaster</a>(<a class="code" href="structjack__driver__desc__t.html">jack_driver_desc_t</a>* driver_desc, <a class="code" href="struct__JSList.html">JSList</a>* driver_params)
<a name="l00336"></a>00336 {
<a name="l00338"></a>00338 fAudioDriver->Stop();
<a name="l00339"></a>00339 fAudioDriver->Detach();
<a name="l00340"></a>00340 fAudioDriver->Close();
<a name="l00341"></a>00341
<a name="l00342"></a>00342 <span class="comment">// Open new master</span>
<a name="l00343"></a>00343 <a class="code" href="classJackDriverInfo.html">JackDriverInfo</a>* info = <span class="keyword">new</span> <a class="code" href="classJackDriverInfo.html">JackDriverInfo</a>();
<a name="l00344"></a>00344 <a class="code" href="classJack_1_1JackDriverClientInterface.html" title="The base interface for drivers clients.">JackDriverClientInterface</a>* master = info->Open(driver_desc, fEngine, GetSynchroTable(), driver_params);
<a name="l00345"></a>00345
<a name="l00346"></a>00346 <span class="keywordflow">if</span> (master == NULL) {
<a name="l00347"></a>00347 <span class="keyword">delete</span> info;
<a name="l00348"></a>00348 <span class="keywordflow">return</span> -1;
<a name="l00349"></a>00349 }
<a name="l00350"></a>00350
<a name="l00351"></a>00351 <span class="comment">// Get slaves list</span>
<a name="l00352"></a>00352 std::list<JackDriverInterface*> slave_list = fAudioDriver->GetSlaves();
<a name="l00353"></a>00353 std::list<JackDriverInterface*>::const_iterator it;
<a name="l00354"></a>00354
<a name="l00355"></a>00355 <span class="comment">// Move slaves in new master</span>
<a name="l00356"></a>00356 <span class="keywordflow">for</span> (it = slave_list.begin(); it != slave_list.end(); it++) {
<a name="l00357"></a>00357 <a class="code" href="classJack_1_1JackDriverInterface.html" title="The base interface for drivers.">JackDriverInterface</a>* slave = *it;
<a name="l00358"></a>00358 master->AddSlave(slave);
<a name="l00359"></a>00359 }
<a name="l00360"></a>00360
<a name="l00361"></a>00361 <span class="comment">// Delete old master</span>
<a name="l00362"></a>00362 <span class="keyword">delete</span> fDriverInfo;
<a name="l00363"></a>00363
<a name="l00364"></a>00364 <span class="comment">// Activate master</span>
<a name="l00365"></a>00365 fAudioDriver = master;
<a name="l00366"></a>00366 fDriverInfo = info;
<a name="l00367"></a>00367 fAudioDriver->Attach();
<a name="l00368"></a>00368 fAudioDriver->SetMaster(<span class="keyword">true</span>);
<a name="l00369"></a>00369 <span class="keywordflow">return</span> fAudioDriver->Start();
<a name="l00370"></a>00370 }
<a name="l00371"></a>00371
<a name="l00372"></a>00372 <span class="comment">//----------------------</span>
<a name="l00373"></a>00373 <span class="comment">// Transport management</span>
<a name="l00374"></a>00374 <span class="comment">//----------------------</span>
<a name="l00375"></a>00375
<a name="l00376"></a>00376 <span class="keywordtype">int</span> JackServer::ReleaseTimebase(<span class="keywordtype">int</span> refnum)
<a name="l00377"></a>00377 {
<a name="l00378"></a>00378 <span class="keywordflow">return</span> fEngineControl->fTransport.ResetTimebase(refnum);
<a name="l00379"></a>00379 }
<a name="l00380"></a>00380
<a name="l00381"></a>00381 <span class="keywordtype">int</span> JackServer::SetTimebaseCallback(<span class="keywordtype">int</span> refnum, <span class="keywordtype">int</span> conditional)
<a name="l00382"></a>00382 {
<a name="l00383"></a>00383 <span class="keywordflow">return</span> fEngineControl->fTransport.SetTimebaseMaster(refnum, conditional);
<a name="l00384"></a>00384 }
<a name="l00385"></a>00385
<a name="l00386"></a>00386 JackLockedEngine* JackServer::GetEngine()
<a name="l00387"></a>00387 {
<a name="l00388"></a>00388 <span class="keywordflow">return</span> fEngine;
<a name="l00389"></a>00389 }
<a name="l00390"></a>00390
<a name="l00391"></a>00391 JackSynchro* JackServer::GetSynchroTable()
<a name="l00392"></a>00392 {
<a name="l00393"></a>00393 <span class="keywordflow">return</span> fSynchroTable;
<a name="l00394"></a>00394 }
<a name="l00395"></a>00395
<a name="l00396"></a>00396 JackEngineControl* JackServer::GetEngineControl()
<a name="l00397"></a>00397 {
<a name="l00398"></a>00398 <span class="keywordflow">return</span> fEngineControl;
<a name="l00399"></a>00399 }
<a name="l00400"></a>00400
<a name="l00401"></a>00401 JackGraphManager* JackServer::GetGraphManager()
<a name="l00402"></a>00402 {
<a name="l00403"></a>00403 <span class="keywordflow">return</span> fGraphManager;
<a name="l00404"></a>00404 }
<a name="l00405"></a>00405
<a name="l00406"></a>00406
<a name="l00407"></a>00407 } <span class="comment">// end of namespace</span>
<a name="l00408"></a>00408
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