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

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revision 1364 by schoenebeck, Mon Oct 1 13:38:37 2007 UTC revision 1895 by persson, Sun May 3 12:15:40 2009 UTC
# Line 2  Line 2 
2   *                                                                         *   *                                                                         *
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003-2004 by Benno Senoner and Christian Schoenebeck   *   *   Copyright (C) 2003-2004 by Benno Senoner and Christian Schoenebeck    *
6   *   Copyright (C) 2005-2007 Christian Schoenebeck                        *   *   Copyright (C) 2005-2009 Christian Schoenebeck                         *
7   *                                                                         *   *                                                                         *
8   *   This program is free software; you can redistribute it and/or modify  *   *   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  *   *   it under the terms of the GNU General Public License as published by  *
# Line 24  Line 24 
24  #include <getopt.h>  #include <getopt.h>
25  #include <signal.h>  #include <signal.h>
26    
27    #if defined(WIN32)
28    // require at least Windows 2000 for the GlobalMemoryStatusEx() call
29    #if _WIN32_WINNT < 0x0500
30    #ifdef _WIN32_WINNT
31    #undef _WIN32_WINNT
32    #endif
33    #define _WIN32_WINNT 0x0500
34    #endif
35    #endif
36    
37  #include "Sampler.h"  #include "Sampler.h"
38    #include "common/global_private.h"
39  #include "engines/EngineFactory.h"  #include "engines/EngineFactory.h"
40  #include "engines/InstrumentEditorFactory.h"  #include "plugins/InstrumentEditorFactory.h"
41  #include "drivers/midi/MidiInputDeviceFactory.h"  #include "drivers/midi/MidiInputDeviceFactory.h"
42  #include "drivers/audio/AudioOutputDeviceFactory.h"  #include "drivers/audio/AudioOutputDeviceFactory.h"
43  #include "engines/gig/Profiler.h"  #include "engines/gig/Profiler.h"
44  #include "network/lscpserver.h"  #include "network/lscpserver.h"
45  #include "common/stacktrace.h"  #include "common/stacktrace.h"
46  #include "common/Features.h"  #include "common/Features.h"
47    #include "common/atomic.h"
48    
49  using namespace LinuxSampler;  using namespace LinuxSampler;
50    
51  Sampler*    pSampler    = NULL;  Sampler*    pSampler    = NULL;
52  LSCPServer* pLSCPServer = NULL;  LSCPServer* pLSCPServer = NULL;
53  pthread_t   main_thread;  #if defined(WIN32)
54    // inet_aton seems missing under WIN32
55    #ifndef INADDR_NONE
56    #define INADDR_NONE 0xffffffff
57    #endif
58    
59    int inet_aton(const char *cp, struct in_addr *addr)
60    {
61        addr->s_addr = inet_addr(cp);
62        return (addr->s_addr == INADDR_NONE) ? 0 : 1;
63    }
64    
65    #else
66  pid_t       main_pid;  pid_t       main_pid;
67    #endif
68  bool bPrintStatistics = false;  bool bPrintStatistics = false;
69  bool profile = false;  bool profile = false;
70  bool tune = true;  bool tune = true;
71    static bool bShowStackTrace = false;
72  unsigned long int lscp_addr;  unsigned long int lscp_addr;
73  unsigned short int lscp_port;  unsigned short int lscp_port;
74    
75  void parse_options(int argc, char **argv);  void parse_options(int argc, char **argv);
76  void signal_handler(int signal);  void signal_handler(int signal);
77  void kill_app();  void kill_app();
78    static atomic_t running = ATOMIC_INIT(1);
79    
80  int main(int argc, char **argv) {  int main(int argc, char **argv) {
81    
82      // initialize the stack trace mechanism with our binary file      lscp_addr = htonl(LSCP_ADDR);
83      StackTraceInit(argv[0], -1);      lscp_port = htons(LSCP_PORT);
84    
85        #if !defined(WIN32)
86      main_pid = getpid();      main_pid = getpid();
87      main_thread = pthread_self();      #endif
88    
89        // parse and assign command line options
90        parse_options(argc, argv);
91    
92      // setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)      // setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)
93      signal(SIGINT, signal_handler);      signal(SIGINT, signal_handler);
94    
95      // register signal handler for all unusual signals      // initialize the stack trace mechanism with our binary file
96      // (we will print the stack trace and exit)      // (if requested by command line option)
97      struct sigaction sact;      if (bShowStackTrace) {
98      sigemptyset(&sact.sa_mask);          #if defined(WIN32)
99      sact.sa_flags   = 0;          // FIXME: sigaction() not supported on WIN32, we ignore it for now
100      sact.sa_handler = signal_handler;          #else
101      sigaction(SIGSEGV, &sact, NULL);          StackTraceInit(argv[0], -1);
102      sigaction(SIGBUS,  &sact, NULL);          // register signal handler for all unusual signals
103      sigaction(SIGILL,  &sact, NULL);          // (we will print the stack trace and exit)
104      sigaction(SIGFPE,  &sact, NULL);          struct sigaction sact;
105      sigaction(SIGUSR1, &sact, NULL);          sigemptyset(&sact.sa_mask);
106      sigaction(SIGUSR2, &sact, NULL);          sact.sa_flags   = 0;
107            sact.sa_handler = signal_handler;
108      lscp_addr = htonl(LSCP_ADDR);          sigaction(SIGSEGV, &sact, NULL);
109      lscp_port = htons(LSCP_PORT);          sigaction(SIGBUS,  &sact, NULL);
110            sigaction(SIGILL,  &sact, NULL);
111      // parse and assign command line options          sigaction(SIGFPE,  &sact, NULL);
112      parse_options(argc, argv);          sigaction(SIGUSR1, &sact, NULL);
113            sigaction(SIGUSR2, &sact, NULL);
114            #endif
115        }
116    
117      dmsg(1,("LinuxSampler %s\n", VERSION));      dmsg(1,("LinuxSampler %s\n", VERSION));
118      dmsg(1,("Copyright (C) 2003,2004 by Benno Senoner and Christian Schoenebeck\n"));      dmsg(1,("Copyright (C) 2003,2004 by Benno Senoner and Christian Schoenebeck\n"));
119      dmsg(1,("Copyright (C) 2005-2007 Christian Schoenebeck\n"));      dmsg(1,("Copyright (C) 2005-2009 Christian Schoenebeck\n"));
120    
121        #if defined(WIN32)
122        #if 0
123        // some WIN32 memory info code which tries to determine the maximum lockable amount of memory (for debug purposes)
124        SYSTEM_INFO siSysInfo;
125        long physical_memory;
126        GetSystemInfo(&siSysInfo);
127        dmsg(2,("page size=%d\n", siSysInfo.dwPageSize));
128    
129        MEMORYSTATUSEX statex;
130            statex.dwLength = sizeof (statex);
131        GlobalMemoryStatusEx (&statex);
132        dmsg(2, ("There are %*I64d total Kbytes of physical memory.\n",
133              8, statex.ullTotalPhys));
134        dmsg(2, ("There are %*I64d free Kbytes of physical memory.\n",
135              8, statex.ullAvailPhys));
136        physical_memory = statex.ullTotalPhys;
137    
138        HANDLE hProcess = GetCurrentProcess();
139    
140        unsigned long MinimumWorkingSetSize, MaximumWorkingSetSize;
141        unsigned long DefaultMinimumWorkingSetSize, DefaultMaximumWorkingSetSize;
142        unsigned long RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize;
143        int res;
144    
145        res = GetProcessWorkingSetSize(hProcess, &DefaultMinimumWorkingSetSize, &DefaultMaximumWorkingSetSize);
146    
147        RequestedMaximumWorkingSetSize = physical_memory - 2*1024*1024;
148        RequestedMinimumWorkingSetSize = RequestedMaximumWorkingSetSize;
149    
150        for(;;) {
151            dmsg(2,("TRYING VALUES  RequestedMinimumWorkingSetSize=%d, RequestedMaximumWorkingSetSize=%d\n", RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize));
152            res = SetProcessWorkingSetSize(hProcess, RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize);
153            dmsg(2,("AFTER SET: res = %d  RequestedMinimumWorkingSetSize=%d, RequestedMaximumWorkingSetSize=%d\n", res,RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize));
154    
155            res = GetProcessWorkingSetSize(hProcess, &MinimumWorkingSetSize, &MaximumWorkingSetSize);
156            dmsg(2,("AFTER GET: res = %d  MinimumWorkingSetSize=%d, MaximumWorkingSetSize=%d\n", res,MinimumWorkingSetSize, MaximumWorkingSetSize));
157    
158            if( RequestedMinimumWorkingSetSize == MinimumWorkingSetSize ) {
159                dmsg(2,("RequestedMinimumWorkingSetSize == MinimumWorkingSetSize. OK !\n"));
160                break;
161            }
162    
163            RequestedMinimumWorkingSetSize -=  10*1024*1024;
164            if(RequestedMinimumWorkingSetSize < DefaultMinimumWorkingSetSize) break;
165        }
166    
167        dmsg(2,("AFTER GetProcessWorkingSetSize: res = %d  MinimumWorkingSetSize=%d, MaximumWorkingSetSize=%d\n", res,MinimumWorkingSetSize, MaximumWorkingSetSize));
168        #endif
169        #endif // WIN32
170    
171      if (tune) {      if (tune) {
172          // detect and print system / CPU specific features          // detect and print system / CPU specific features
# Line 92  int main(int argc, char **argv) { Line 176  int main(int argc, char **argv) {
176          Features::enableDenormalsAreZeroMode();          Features::enableDenormalsAreZeroMode();
177      }      }
178    
179        dmsg(1,("Automatic Stacktrace: %s\n", (bShowStackTrace) ? "On" : "Off"));
180    
181      // create LinuxSampler instance      // create LinuxSampler instance
182      dmsg(1,("Creating Sampler..."));      dmsg(1,("Creating Sampler..."));
183      pSampler = new Sampler;      pSampler = new Sampler;
# Line 122  int main(int argc, char **argv) { Line 208  int main(int argc, char **argv) {
208    
209      printf("LinuxSampler initialization completed. :-)\n\n");      printf("LinuxSampler initialization completed. :-)\n\n");
210    
211      std::list<LSCPEvent::event_t> rtEvents;      while (atomic_read(&running)) {
     rtEvents.push_back(LSCPEvent::event_voice_count);  
     rtEvents.push_back(LSCPEvent::event_stream_count);  
     rtEvents.push_back(LSCPEvent::event_buffer_fill);  
     rtEvents.push_back(LSCPEvent::event_total_voice_count);  
   
     while (true) {  
212          if (bPrintStatistics) {          if (bPrintStatistics) {
213              const std::set<Engine*>& engines = EngineFactory::EngineInstances();              const std::set<Engine*>& engines = EngineFactory::EngineInstances();
214              std::set<Engine*>::iterator itEngine = engines.begin();              std::set<Engine*>::iterator itEngine = engines.begin();
# Line 142  int main(int argc, char **argv) { Line 222  int main(int argc, char **argv) {
222              }              }
223          }          }
224    
225        sleep(1);          sleep(1);
226        if (profile)          if (profile)
227        {          {
228            unsigned int samplingFreq = 48000; //FIXME: hardcoded for now              unsigned int samplingFreq = 48000; //FIXME: hardcoded for now
229            unsigned int bv = LinuxSampler::gig::Profiler::GetBogoVoices(samplingFreq);              unsigned int bv = LinuxSampler::gig::Profiler::GetBogoVoices(samplingFreq);
230            if (bv != 0)              if (bv != 0)
231            {              {
232                printf("       BogoVoices: %i         \r", bv);                  printf("       BogoVoices: %i         \r", bv);
233                fflush(stdout);                  fflush(stdout);
234            }              }
235        }          }
   
       if (LSCPServer::EventSubscribers(rtEvents))  
       {  
           LSCPServer::LockRTNotify();  
           std::map<uint,SamplerChannel*> channels = pSampler->GetSamplerChannels();  
           std::map<uint,SamplerChannel*>::iterator iter = channels.begin();  
           for (; iter != channels.end(); iter++) {  
               SamplerChannel* pSamplerChannel = iter->second;  
               EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();  
               if (!pEngineChannel) continue;  
               Engine* pEngine = pEngineChannel->GetEngine();  
               if (!pEngine) continue;  
               pSampler->fireVoiceCountChanged(iter->first, pEngineChannel->GetVoiceCount());  
               pSampler->fireStreamCountChanged(iter->first, pEngineChannel->GetDiskStreamCount());  
               pSampler->fireBufferFillChanged(iter->first, pEngine->DiskStreamBufferFillPercentage());  
               pSampler->fireTotalVoiceCountChanged(pSampler->GetVoiceCount());  
           }  
           LSCPServer::UnlockRTNotify();  
       }  
236    
237            pSampler->fireStatistics();
238      }      }
239        if (pLSCPServer) pLSCPServer->StopThread();
240        // the delete order here is important: the Sampler
241        // destructor sends notifications to the lscpserver
242        if (pSampler) delete pSampler;
243        if (pLSCPServer) delete pLSCPServer;
244        printf("LinuxSampler stopped due to SIGINT.\n");
245      return EXIT_SUCCESS;      return EXIT_SUCCESS;
246  }  }
247    
248  void signal_handler(int iSignal) {  void signal_handler(int iSignal) {
249      switch (iSignal) {      switch (iSignal) {
250          case SIGINT: {          case SIGINT:
251              if (pthread_equal(pthread_self(), main_thread)) {              atomic_set(&running, 0);
                 if (pLSCPServer) pLSCPServer->StopThread();  
                 // the delete order here is important: the Sampler  
                 // destructor sends notifications to the lscpserver  
                 if (pSampler) delete pSampler;  
                 if (pLSCPServer) delete pLSCPServer;  
 #if HAVE_SQLITE3  
                 InstrumentsDb::Destroy();  
 #endif  
                 printf("LinuxSampler stopped due to SIGINT.\n");  
                 exit(EXIT_SUCCESS);  
             }  
252              return;              return;
253          }          #if defined(WIN32)
254            // FIXME: under WIN32 we ignore the signals below due to the missing sigaction call
255            #else
256          case SIGSEGV:          case SIGSEGV:
257              std::cerr << ">>> FATAL ERROR: Segmentation fault (SIGSEGV) occured! <<<\n" << std::flush;              std::cerr << ">>> FATAL ERROR: Segmentation fault (SIGSEGV) occured! <<<\n" << std::flush;
258              break;              break;
# Line 213  void signal_handler(int iSignal) { Line 271  void signal_handler(int iSignal) {
271          case SIGUSR2:          case SIGUSR2:
272              std::cerr << ">>> User defined signal 2 (SIGUSR2) received <<<\n" << std::flush;              std::cerr << ">>> User defined signal 2 (SIGUSR2) received <<<\n" << std::flush;
273              break;              break;
274            #endif
275          default: { // this should never happen, as we register for the signals we want          default: { // this should never happen, as we register for the signals we want
276              std::cerr << ">>> FATAL ERROR: Unknown signal received! <<<\n" << std::flush;              std::cerr << ">>> FATAL ERROR: Unknown signal received! <<<\n" << std::flush;
277              break;              break;
278          }          }
279      }      }
280      signal(iSignal, SIG_DFL); // Reinstall default handler to prevent race conditions      signal(iSignal, SIG_DFL); // Reinstall default handler to prevent race conditions
281      std::cerr << "Showing stack trace...\n" << std::flush;      if (bShowStackTrace) {
282      StackTrace();          std::cerr << "Showing stack trace...\n" << std::flush;
283      sleep(2);          StackTrace();
284            sleep(2);
285        }
286      std::cerr << "Killing LinuxSampler...\n" << std::flush;      std::cerr << "Killing LinuxSampler...\n" << std::flush;
287      kill_app(); // Use abort() if we want to generate a core dump.      kill_app(); // Use abort() if we want to generate a core dump.
288  }  }
289    
290  void kill_app() {  void kill_app() {
291        #if defined(WIN32)
292        // FIXME: do we need to do anything at this point under WIN32 ?  is exit(0) ok ?
293        exit(0);
294        #else
295      kill(main_pid, SIGKILL);      kill(main_pid, SIGKILL);
296        #endif
297  }  }
298    
299  void parse_options(int argc, char **argv) {  void parse_options(int argc, char **argv) {
# Line 244  void parse_options(int argc, char **argv Line 310  void parse_options(int argc, char **argv
310              {"create-instruments-db",1,0,0},              {"create-instruments-db",1,0,0},
311              {"lscp-addr",1,0,0},              {"lscp-addr",1,0,0},
312              {"lscp-port",1,0,0},              {"lscp-port",1,0,0},
313                {"stacktrace",0,0,0},
314              {0,0,0,0}              {0,0,0,0}
315          };          };
316    
# Line 267  void parse_options(int argc, char **argv Line 334  void parse_options(int argc, char **argv
334                      printf("--lscp-port                 set LSCP port (default: 8888)\n");                      printf("--lscp-port                 set LSCP port (default: 8888)\n");
335                      printf("--create-instruments-db     creates an instruments DB\n");                      printf("--create-instruments-db     creates an instruments DB\n");
336                      printf("--instruments-db-location   specifies the instruments DB file\n");                      printf("--instruments-db-location   specifies the instruments DB file\n");
337                        printf("--stacktrace                automatically shows stacktrace if crashes\n");
338                        printf("                            (broken on most systems at the moment)\n");
339                      exit(EXIT_SUCCESS);                      exit(EXIT_SUCCESS);
340                      break;                      break;
341                  case 1: // --version                  case 1: // --version
# Line 321  void parse_options(int argc, char **argv Line 390  void parse_options(int argc, char **argv
390                          if (optarg) {                          if (optarg) {
391                              std::cout << "Creating instruments database..." << std::endl;                              std::cout << "Creating instruments database..." << std::endl;
392                              InstrumentsDb::CreateInstrumentsDb(String(optarg));                              InstrumentsDb::CreateInstrumentsDb(String(optarg));
                             InstrumentsDb::Destroy();  
393                              std::cout << "Done" << std::endl;                              std::cout << "Done" << std::endl;
394                          }                          }
395                      } catch(Exception e) {                      } catch(Exception e) {
# Line 338  void parse_options(int argc, char **argv Line 406  void parse_options(int argc, char **argv
406                      exit(EXIT_FAILURE);                      exit(EXIT_FAILURE);
407                      return;                      return;
408  #endif  #endif
409                  case 7: // --lscp-addr                  case 7: { // --lscp-addr
410                      struct in_addr addr;                      struct in_addr addr;
411                      if (inet_aton(optarg, &addr) == 0)                      if (inet_aton(optarg, &addr) == 0)
412                          printf("WARNING: Failed to parse lscp-addr argument, ignoring!\n");                          printf("WARNING: Failed to parse lscp-addr argument, ignoring!\n");
413                      else                      else
414                          lscp_addr = addr.s_addr;                          lscp_addr = addr.s_addr;
415                      break;                      break;
416                  case 8: // --lscp-port                  }
417                    case 8: {// --lscp-port
418                      long unsigned int port = 0;                      long unsigned int port = 0;
419                      if ((sscanf(optarg, "%u", &port) != 1) || (port == 0) || (port > 65535))                      if ((sscanf(optarg, "%u", &port) != 1) || (port == 0) || (port > 65535))
420                          printf("WARNING: Failed to parse lscp-port argument, ignoring!\n");                          printf("WARNING: Failed to parse lscp-port argument, ignoring!\n");
421                      else                      else
422                          lscp_port = htons(port);                          lscp_port = htons(port);
423                      break;                      break;
424                    }
425                    case 9: // --stacktrace
426                        bShowStackTrace = true;
427                        break;
428              }              }
429          }          }
430      }      }
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