/[svn]/linuxsampler/trunk/src/linuxsampler.cpp
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Contents of /linuxsampler/trunk/src/linuxsampler.cpp

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Revision 1012 - (show annotations) (download)
Sun Jan 7 15:52:36 2007 UTC (13 years, 3 months ago) by capela
File size: 11682 byte(s)
* Fixed a memory leak due to EngineFactory::Destroy() not doing it
as an actual destructor and just removing the engine instance from
factory stock and all instances allocated via EngineFactory::Create()
never got delete'd and thus their destructors never called. This bug
was evident while having many mapped instruments and querying the
instrument status via GET MIDI_INSTRUMENT INFO command, eating up
system memory very quickly and never let it go.

1 /***************************************************************************
2 * *
3 * LinuxSampler - modular, streaming capable sampler *
4 * *
5 * Copyright (C) 2003-2004 by Benno Senoner and Christian Schoenebeck *
6 * Copyright (C) 2005-2007 Christian Schoenebeck *
7 * *
8 * This program is free software; you can redistribute it and/or modify *
9 * it under the terms of the GNU General Public License as published by *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
12 * *
13 * This program is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
17 * *
18 * You should have received a copy of the GNU General Public License *
19 * along with this program; if not, write to the Free Software *
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
21 * MA 02111-1307 USA *
22 ***************************************************************************/
23
24 #include <getopt.h>
25 #include <signal.h>
26
27 #include "Sampler.h"
28 #include "engines/EngineFactory.h"
29 #include "drivers/midi/MidiInputDeviceFactory.h"
30 #include "drivers/audio/AudioOutputDeviceFactory.h"
31 #include "engines/gig/Profiler.h"
32 #include "network/lscpserver.h"
33 #include "common/stacktrace.h"
34 #include "common/Features.h"
35
36 using namespace LinuxSampler;
37
38 Sampler* pSampler = NULL;
39 LSCPServer* pLSCPServer = NULL;
40 pthread_t main_thread;
41 pid_t main_pid;
42 bool bPrintStatistics = false;
43 bool profile = false;
44 bool tune = true;
45 unsigned long int lscp_addr;
46 unsigned short int lscp_port;
47
48 void parse_options(int argc, char **argv);
49 void signal_handler(int signal);
50 void kill_app();
51
52 int main(int argc, char **argv) {
53
54 // initialize the stack trace mechanism with our binary file
55 StackTraceInit(argv[0], -1);
56
57 main_pid = getpid();
58 main_thread = pthread_self();
59
60 // setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)
61 signal(SIGINT, signal_handler);
62
63 // register signal handler for all unusual signals
64 // (we will print the stack trace and exit)
65 struct sigaction sact;
66 sigemptyset(&sact.sa_mask);
67 sact.sa_flags = 0;
68 sact.sa_handler = signal_handler;
69 sigaction(SIGSEGV, &sact, NULL);
70 sigaction(SIGBUS, &sact, NULL);
71 sigaction(SIGILL, &sact, NULL);
72 sigaction(SIGFPE, &sact, NULL);
73 sigaction(SIGUSR1, &sact, NULL);
74 sigaction(SIGUSR2, &sact, NULL);
75
76 lscp_addr = htonl(LSCP_ADDR);
77 lscp_port = htons(LSCP_PORT);
78
79 // parse and assign command line options
80 parse_options(argc, argv);
81
82 dmsg(1,("LinuxSampler %s\n", VERSION));
83 dmsg(1,("Copyright (C) 2003,2004 by Benno Senoner and Christian Schoenebeck\n"));
84 dmsg(1,("Copyright (C) 2005-2007 Christian Schoenebeck\n"));
85
86 if (tune) {
87 // detect and print system / CPU specific features
88 Features::detect();
89 dmsg(1,("Detected features: %s\n", Features::featuresAsString().c_str()));
90 // prevent slow denormal FPU modes
91 Features::enableDenormalsAreZeroMode();
92 }
93
94 // create LinuxSampler instance
95 dmsg(1,("Creating Sampler..."));
96 pSampler = new Sampler;
97 dmsg(1,("OK\n"));
98
99 dmsg(1,("Registered sampler engines: %s\n", EngineFactory::AvailableEngineTypesAsString().c_str()));
100 dmsg(1,("Registered MIDI input drivers: %s\n", MidiInputDeviceFactory::AvailableDriversAsString().c_str()));
101 dmsg(1,("Registered audio output drivers: %s\n", AudioOutputDeviceFactory::AvailableDriversAsString().c_str()));
102
103 // start LSCP network server
104 struct in_addr addr;
105 addr.s_addr = lscp_addr;
106 dmsg(1,("Starting LSCP network server (%s:%d)...", inet_ntoa(addr), ntohs(lscp_port)));
107 pLSCPServer = new LSCPServer(pSampler, lscp_addr, lscp_port);
108 pLSCPServer->StartThread();
109 pLSCPServer->WaitUntilInitialized();
110 dmsg(1,("OK\n"));
111
112 if (profile)
113 {
114 dmsg(1,("Calibrating profiler..."));
115 gig::Profiler::Calibrate();
116 gig::Profiler::Reset();
117 gig::Profiler::enable();
118 dmsg(1,("OK\n"));
119 }
120
121 printf("LinuxSampler initialization completed. :-)\n\n");
122
123 std::list<LSCPEvent::event_t> rtEvents;
124 rtEvents.push_back(LSCPEvent::event_voice_count);
125 rtEvents.push_back(LSCPEvent::event_stream_count);
126 rtEvents.push_back(LSCPEvent::event_buffer_fill);
127 rtEvents.push_back(LSCPEvent::event_total_voice_count);
128
129 while (true) {
130 if (bPrintStatistics) {
131 const std::set<Engine*>& engines = EngineFactory::EngineInstances();
132 std::set<Engine*>::iterator itEngine = engines.begin();
133 for (int i = 0; itEngine != engines.end(); itEngine++, i++) {
134 Engine* pEngine = *itEngine;
135 printf("Engine %d) Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d)\n", i,
136 pEngine->VoiceCount(), pEngine->VoiceCountMax(),
137 pEngine->DiskStreamCount(), pEngine->DiskStreamCountMax()
138 );
139 fflush(stdout);
140 }
141 }
142
143 sleep(1);
144 if (profile)
145 {
146 unsigned int samplingFreq = 48000; //FIXME: hardcoded for now
147 unsigned int bv = gig::Profiler::GetBogoVoices(samplingFreq);
148 if (bv != 0)
149 {
150 printf(" BogoVoices: %i \r", bv);
151 fflush(stdout);
152 }
153 }
154
155 if (LSCPServer::EventSubscribers(rtEvents))
156 {
157 LSCPServer::LockRTNotify();
158 std::map<uint,SamplerChannel*> channels = pSampler->GetSamplerChannels();
159 std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
160 for (; iter != channels.end(); iter++) {
161 SamplerChannel* pSamplerChannel = iter->second;
162 EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
163 if (!pEngineChannel) continue;
164 Engine* pEngine = pEngineChannel->GetEngine();
165 if (!pEngine) continue;
166 LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_voice_count, iter->first, pEngine->VoiceCount()));
167 LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_stream_count, iter->first, pEngine->DiskStreamCount()));
168 LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_buffer_fill, iter->first, pEngine->DiskStreamBufferFillPercentage()));
169 LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_total_voice_count, pSampler->GetVoiceCount()));
170 }
171 LSCPServer::UnlockRTNotify();
172 }
173
174 }
175
176 return EXIT_SUCCESS;
177 }
178
179 void signal_handler(int iSignal) {
180 switch (iSignal) {
181 case SIGINT: {
182 if (pthread_equal(pthread_self(), main_thread)) {
183 if (pLSCPServer) {
184 pLSCPServer->StopThread();
185 delete pLSCPServer;
186 }
187 if (pSampler) delete pSampler;
188 printf("LinuxSampler stopped due to SIGINT.\n");
189 exit(EXIT_SUCCESS);
190 }
191 return;
192 }
193 case SIGSEGV:
194 std::cerr << ">>> FATAL ERROR: Segmentation fault (SIGSEGV) occured! <<<\n" << std::flush;
195 break;
196 case SIGBUS:
197 std::cerr << ">>> FATAL ERROR: Access to undefined portion of a memory object (SIGBUS) occured! <<<\n" << std::flush;
198 break;
199 case SIGILL:
200 std::cerr << ">>> FATAL ERROR: Illegal instruction (SIGILL) occured! <<<\n" << std::flush;
201 break;
202 case SIGFPE:
203 std::cerr << ">>> FATAL ERROR: Erroneous arithmetic operation (SIGFPE) occured! <<<\n" << std::flush;
204 break;
205 case SIGUSR1:
206 std::cerr << ">>> User defined signal 1 (SIGUSR1) received <<<\n" << std::flush;
207 break;
208 case SIGUSR2:
209 std::cerr << ">>> User defined signal 2 (SIGUSR2) received <<<\n" << std::flush;
210 break;
211 default: { // this should never happen, as we register for the signals we want
212 std::cerr << ">>> FATAL ERROR: Unknown signal received! <<<\n" << std::flush;
213 break;
214 }
215 }
216 signal(iSignal, SIG_DFL); // Reinstall default handler to prevent race conditions
217 std::cerr << "Showing stack trace...\n" << std::flush;
218 StackTrace();
219 sleep(2);
220 std::cerr << "Killing LinuxSampler...\n" << std::flush;
221 kill_app(); // Use abort() if we want to generate a core dump.
222 }
223
224 void kill_app() {
225 kill(main_pid, SIGKILL);
226 }
227
228 void parse_options(int argc, char **argv) {
229 int res;
230 int option_index = 0;
231 static struct option long_options[] =
232 {
233 {"help",0,0,0},
234 {"version",0,0,0},
235 {"profile",0,0,0},
236 {"no-tune",0,0,0},
237 {"statistics",0,0,0},
238 {"lscp-addr",1,0,0},
239 {"lscp-port",1,0,0},
240 {0,0,0,0}
241 };
242
243 while (true) {
244 /*
245 Stephane Letz : letz@grame.fr
246 getopt_long_only does not exist on OSX : replaced by getopt_long for now.
247 */
248 res = getopt_long(argc, argv, "", long_options, &option_index);
249 if(res == -1) break;
250 if (res == 0) {
251 switch(option_index) {
252 case 0: // --help
253 printf("usage: linuxsampler [OPTIONS]\n\n");
254 printf("--help prints this message\n");
255 printf("--version prints version information\n");
256 printf("--profile profile synthesis algorithms\n");
257 printf("--no-tune disable assembly optimization\n");
258 printf("--statistics periodically prints statistics\n");
259 printf("--lscp-addr set LSCP address (default: any)\n");
260 printf("--lscp-port set LSCP port (default: 8888)\n");
261 exit(EXIT_SUCCESS);
262 break;
263 case 1: // --version
264 printf("LinuxSampler %s\n", VERSION);
265 exit(EXIT_SUCCESS);
266 break;
267 case 2: // --profile
268 profile = true;
269 break;
270 case 3: // --no-tune
271 tune = false;
272 break;
273 case 4: // --statistics
274 bPrintStatistics = true;
275 break;
276 case 5: // --lscp-addr
277 struct in_addr addr;
278 if (inet_aton(optarg, &addr) == 0)
279 printf("WARNING: Failed to parse lscp-addr argument, ignoring!\n");
280 else
281 lscp_addr = addr.s_addr;
282 break;
283 case 6: // --lscp-port
284 long unsigned int port = 0;
285 if ((sscanf(optarg, "%u", &port) != 1) || (port == 0) || (port > 65535))
286 printf("WARNING: Failed to parse lscp-port argument, ignoring!\n");
287 else
288 lscp_port = htons(port);
289 break;
290 }
291 }
292 }
293 }

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