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

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Revision 816 - (hide annotations) (download)
Thu Dec 22 19:29:52 2005 UTC (18 years, 4 months ago) by wylder
File size: 11570 byte(s)
change kill statement to use pid rather than thread id

1 schoenebeck 9 /***************************************************************************
2     * *
3     * LinuxSampler - modular, streaming capable sampler *
4     * *
5 schoenebeck 61 * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 schoenebeck 411 * Copyright (C) 2005 Christian Schoenebeck *
7 schoenebeck 9 * *
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 schoenebeck 53 #include "Sampler.h"
28 schoenebeck 420 #include "engines/EngineFactory.h"
29 schoenebeck 207 #include "drivers/midi/MidiInputDeviceFactory.h"
30 schoenebeck 203 #include "drivers/audio/AudioOutputDeviceFactory.h"
31 senkov 325 #include "engines/gig/Profiler.h"
32 schoenebeck 35 #include "network/lscpserver.h"
33 schoenebeck 271 #include "common/stacktrace.h"
34 schoenebeck 319 #include "common/Features.h"
35 schoenebeck 9
36 schoenebeck 53 using namespace LinuxSampler;
37    
38 schoenebeck 211 Sampler* pSampler = NULL;
39     LSCPServer* pLSCPServer = NULL;
40 schoenebeck 271 pthread_t main_thread;
41 wylder 816 pid_t main_pid;
42 schoenebeck 420 bool bPrintStatistics = false;
43 senkov 325 bool profile = false;
44     bool tune = true;
45 senkov 667 unsigned long int lscp_addr;
46     unsigned short int lscp_port;
47 schoenebeck 9
48     void parse_options(int argc, char **argv);
49     void signal_handler(int signal);
50 schoenebeck 271 void kill_app();
51 schoenebeck 9
52     int main(int argc, char **argv) {
53    
54 schoenebeck 271 // initialize the stack trace mechanism with our binary file
55     StackTraceInit(argv[0], -1);
56    
57 wylder 816 main_pid = getpid();
58 schoenebeck 271 main_thread = pthread_self();
59    
60 wylder 816
61    
62 schoenebeck 9 // setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)
63     signal(SIGINT, signal_handler);
64    
65 schoenebeck 271 // register signal handler for all unusual signals
66     // (we will print the stack trace and exit)
67     struct sigaction sact;
68     sigemptyset(&sact.sa_mask);
69     sact.sa_flags = 0;
70     sact.sa_handler = signal_handler;
71     sigaction(SIGSEGV, &sact, NULL);
72     sigaction(SIGBUS, &sact, NULL);
73     sigaction(SIGILL, &sact, NULL);
74     sigaction(SIGFPE, &sact, NULL);
75     sigaction(SIGUSR1, &sact, NULL);
76     sigaction(SIGUSR2, &sact, NULL);
77    
78 senkov 667 lscp_addr = htonl(LSCP_ADDR);
79     lscp_port = htons(LSCP_PORT);
80    
81 schoenebeck 9 // parse and assign command line options
82 senkov 325 parse_options(argc, argv);
83 schoenebeck 9
84 schoenebeck 207 dmsg(1,("LinuxSampler %s\n", VERSION));
85     dmsg(1,("Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck\n"));
86 schoenebeck 411 dmsg(1,("Copyright (C) 2005 Christian Schoenebeck\n"));
87 schoenebeck 123
88 schoenebeck 579 if (tune) {
89 persson 425 // detect and print system / CPU specific features
90     Features::detect();
91 schoenebeck 579 dmsg(1,("Detected features: %s\n", Features::featuresAsString().c_str()));
92     // prevent slow denormal FPU modes
93     Features::enableDenormalsAreZeroMode();
94 senkov 325 }
95 schoenebeck 319
96 schoenebeck 53 // create LinuxSampler instance
97 schoenebeck 123 dmsg(1,("Creating Sampler..."));
98 schoenebeck 53 pSampler = new Sampler;
99 schoenebeck 123 dmsg(1,("OK\n"));
100 schoenebeck 53
101 schoenebeck 207 dmsg(1,("Registered MIDI input drivers: %s\n", MidiInputDeviceFactory::AvailableDriversAsString().c_str()));
102 schoenebeck 123 dmsg(1,("Registered audio output drivers: %s\n", AudioOutputDeviceFactory::AvailableDriversAsString().c_str()));
103    
104 schoenebeck 53 // start LSCP network server
105 senkov 667 struct in_addr addr;
106     addr.s_addr = lscp_addr;
107     dmsg(1,("Starting LSCP network server (%s:%d)...", inet_ntoa(addr), ntohs(lscp_port)));
108     pLSCPServer = new LSCPServer(pSampler, lscp_addr, lscp_port);
109 schoenebeck 53 pLSCPServer->StartThread();
110 schoenebeck 211 pLSCPServer->WaitUntilInitialized();
111 schoenebeck 12 dmsg(1,("OK\n"));
112 schoenebeck 9
113 senkov 325 if (profile)
114     {
115 persson 425 dmsg(1,("Calibrating profiler..."));
116     gig::Profiler::Calibrate();
117     gig::Profiler::Reset();
118 schoenebeck 770 gig::Profiler::enable();
119 persson 425 dmsg(1,("OK\n"));
120 senkov 325 }
121    
122 schoenebeck 563 printf("LinuxSampler initialization completed. :-)\n\n");
123 schoenebeck 9
124 senkov 360 std::list<LSCPEvent::event_t> rtEvents;
125     rtEvents.push_back(LSCPEvent::event_voice_count);
126     rtEvents.push_back(LSCPEvent::event_stream_count);
127     rtEvents.push_back(LSCPEvent::event_buffer_fill);
128 iliev 778 rtEvents.push_back(LSCPEvent::event_total_voice_count);
129 senkov 360
130 schoenebeck 420 while (true) {
131     if (bPrintStatistics) {
132     std::set<Engine*> engines = EngineFactory::EngineInstances();
133     std::set<Engine*>::iterator itEngine = engines.begin();
134     for (int i = 0; itEngine != engines.end(); itEngine++, i++) {
135     Engine* pEngine = *itEngine;
136     printf("Engine %d) Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d)\n", i,
137     pEngine->VoiceCount(), pEngine->VoiceCountMax(),
138     pEngine->DiskStreamCount(), pEngine->DiskStreamCountMax()
139     );
140     fflush(stdout);
141     }
142     }
143 persson 425
144 senkov 325 sleep(1);
145     if (profile)
146     {
147 persson 425 unsigned int samplingFreq = 48000; //FIXME: hardcoded for now
148     unsigned int bv = gig::Profiler::GetBogoVoices(samplingFreq);
149     if (bv != 0)
150     {
151     printf(" BogoVoices: %i \r", bv);
152     fflush(stdout);
153     }
154 senkov 325 }
155 persson 425
156 senkov 360 if (LSCPServer::EventSubscribers(rtEvents))
157     {
158 persson 425 LSCPServer::LockRTNotify();
159     std::map<uint,SamplerChannel*> channels = pSampler->GetSamplerChannels();
160     std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
161     for (; iter != channels.end(); iter++) {
162     SamplerChannel* pSamplerChannel = iter->second;
163     EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
164     if (!pEngineChannel) continue;
165     Engine* pEngine = pEngineChannel->GetEngine();
166     if (!pEngine) continue;
167     LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_voice_count, iter->first, pEngine->VoiceCount()));
168     LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_stream_count, iter->first, pEngine->DiskStreamCount()));
169     LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_buffer_fill, iter->first, pEngine->DiskStreamBufferFillPercentage()));
170 iliev 778 LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_total_voice_count, pSampler->GetVoiceCount()));
171 persson 425 }
172     LSCPServer::UnlockRTNotify();
173 senkov 360 }
174    
175 senoner 10 }
176    
177 schoenebeck 9 return EXIT_SUCCESS;
178     }
179    
180 schoenebeck 271 void signal_handler(int iSignal) {
181     switch (iSignal) {
182     case SIGINT: {
183     if (pthread_equal(pthread_self(), main_thread)) {
184     if (pLSCPServer) {
185     pLSCPServer->StopThread();
186     delete pLSCPServer;
187     }
188     if (pSampler) delete pSampler;
189     printf("LinuxSampler stopped due to SIGINT.\n");
190     exit(EXIT_SUCCESS);
191     }
192     return;
193 schoenebeck 53 }
194 schoenebeck 271 case SIGSEGV:
195     std::cerr << ">>> FATAL ERROR: Segmentation fault (SIGSEGV) occured! <<<\n" << std::flush;
196     break;
197     case SIGBUS:
198     std::cerr << ">>> FATAL ERROR: Access to undefined portion of a memory object (SIGBUS) occured! <<<\n" << std::flush;
199     break;
200     case SIGILL:
201     std::cerr << ">>> FATAL ERROR: Illegal instruction (SIGILL) occured! <<<\n" << std::flush;
202     break;
203     case SIGFPE:
204     std::cerr << ">>> FATAL ERROR: Erroneous arithmetic operation (SIGFPE) occured! <<<\n" << std::flush;
205     break;
206     case SIGUSR1:
207     std::cerr << ">>> User defined signal 1 (SIGUSR1) received <<<\n" << std::flush;
208     break;
209     case SIGUSR2:
210     std::cerr << ">>> User defined signal 2 (SIGUSR2) received <<<\n" << std::flush;
211     break;
212     default: { // this should never happen, as we register for the signals we want
213     std::cerr << ">>> FATAL ERROR: Unknown signal received! <<<\n" << std::flush;
214     break;
215     }
216 schoenebeck 9 }
217 schoenebeck 271 signal(iSignal, SIG_DFL); // Reinstall default handler to prevent race conditions
218     std::cerr << "Showing stack trace...\n" << std::flush;
219     StackTrace();
220     sleep(2);
221     std::cerr << "Killing LinuxSampler...\n" << std::flush;
222     kill_app(); // Use abort() if we want to generate a core dump.
223 schoenebeck 9 }
224    
225 schoenebeck 271 void kill_app() {
226 wylder 816 kill(main_pid, SIGKILL);
227 schoenebeck 271 }
228    
229 senkov 325 void parse_options(int argc, char **argv) {
230 schoenebeck 9 int res;
231     int option_index = 0;
232     static struct option long_options[] =
233     {
234     {"help",0,0,0},
235 senkov 325 {"version",0,0,0},
236     {"profile",0,0,0},
237     {"no-tune",0,0,0},
238 schoenebeck 420 {"statistics",0,0,0},
239 senkov 667 {"lscp-addr",1,0,0},
240     {"lscp-port",1,0,0},
241 schoenebeck 9 {0,0,0,0}
242     };
243    
244     while (true) {
245 schoenebeck 361 /*
246     Stephane Letz : letz@grame.fr
247     getopt_long_only does not exist on OSX : replaced by getopt_long for now.
248     */
249     res = getopt_long(argc, argv, "", long_options, &option_index);
250 schoenebeck 9 if(res == -1) break;
251     if (res == 0) {
252     switch(option_index) {
253 senkov 325 case 0: // --help
254     printf("usage: linuxsampler [OPTIONS]\n\n");
255     printf("--help prints this message\n");
256     printf("--version prints version information\n");
257     printf("--profile profile synthesis algorithms\n");
258     printf("--no-tune disable assembly optimization\n");
259 senkov 667 printf("--statistics periodically prints statistics\n");
260     printf("--lscp-addr set LSCP address (default: any)\n");
261     printf("--lscp-port set LSCP port (default: 8888)\n");
262 senkov 325 exit(EXIT_SUCCESS);
263 schoenebeck 9 break;
264 senkov 325 case 1: // --version
265 schoenebeck 328 printf("LinuxSampler %s\n", VERSION);
266     exit(EXIT_SUCCESS);
267 schoenebeck 9 break;
268 senkov 325 case 2: // --profile
269 persson 425 profile = true;
270 schoenebeck 20 break;
271 senkov 325 case 3: // --no-tune
272 persson 425 tune = false;
273 schoenebeck 9 break;
274 schoenebeck 420 case 4: // --statistics
275     bPrintStatistics = true;
276     break;
277 senkov 667 case 5: // --lscp-addr
278     struct in_addr addr;
279     if (inet_aton(optarg, &addr) == 0)
280     printf("WARNING: Failed to parse lscp-addr argument, ignoring!\n");
281     else
282     lscp_addr = addr.s_addr;
283     break;
284     case 6: // --lscp-port
285     long unsigned int port = 0;
286     if ((sscanf(optarg, "%u", &port) != 1) || (port == 0) || (port > 65535))
287     printf("WARNING: Failed to parse lscp-port argument, ignoring!\n");
288     else
289     lscp_port = htons(port);
290     break;
291 schoenebeck 9 }
292     }
293     }
294 senkov 325 }

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