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

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revision 361 by schoenebeck, Wed Feb 9 01:22:18 2005 UTC revision 3844 by schoenebeck, Sun Jan 3 18:05:57 2021 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) 2005-2021 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 22  Line 23 
23    
24  #include <getopt.h>  #include <getopt.h>
25  #include <signal.h>  #include <signal.h>
26    #include <sys/stat.h>
27    
28    #if defined(WIN32)
29    // require at least Windows 2000 for the GlobalMemoryStatusEx() call
30    #if _WIN32_WINNT < 0x0500
31    #ifdef _WIN32_WINNT
32    #undef _WIN32_WINNT
33    #endif
34    #define _WIN32_WINNT 0x0500
35    #endif
36    #endif
37    
38  #include "Sampler.h"  #include "Sampler.h"
39    #include "common/global_private.h"
40    #include "engines/EngineFactory.h"
41    #include "plugins/InstrumentEditorFactory.h"
42  #include "drivers/midi/MidiInputDeviceFactory.h"  #include "drivers/midi/MidiInputDeviceFactory.h"
43  #include "drivers/audio/AudioOutputDeviceFactory.h"  #include "drivers/audio/AudioOutputDeviceFactory.h"
44    #include "effects/EffectFactory.h"
45  #include "engines/gig/Profiler.h"  #include "engines/gig/Profiler.h"
46  #include "network/lscpserver.h"  #include "network/lscpserver.h"
47  #include "common/stacktrace.h"  #include "common/stacktrace.h"
48  #include "common/Features.h"  #include "common/Features.h"
49    #include "common/atomic.h"
50    
51  using namespace LinuxSampler;  using namespace LinuxSampler;
52    
53  Sampler*    pSampler    = NULL;  Sampler*    pSampler    = NULL;
54  LSCPServer* pLSCPServer = NULL;  LSCPServer* pLSCPServer = NULL;
55  pthread_t   main_thread;  #if defined(WIN32)
56    // inet_aton seems missing under WIN32
57    #ifndef INADDR_NONE
58    #define INADDR_NONE 0xffffffff
59    #endif
60    
61    typedef unsigned long in_addr_t;
62    
63    int inet_aton(const char *cp, struct in_addr *addr)
64    {
65        addr->s_addr = inet_addr(cp);
66        return (addr->s_addr == INADDR_NONE) ? 0 : 1;
67    }
68    
69    #else
70    pid_t       main_pid;
71    #endif
72    bool bPrintStatistics = false;
73  bool profile = false;  bool profile = false;
74  bool tune = true;  bool tune = true;
75    static bool bShowStackTrace = false;
76    unsigned long int lscp_addr;
77    unsigned short int lscp_port;
78    String ExecAfterInit;
79    
80  void parse_options(int argc, char **argv);  void parse_options(int argc, char **argv);
81  void signal_handler(int signal);  void signal_handler(int signal);
82  void kill_app();  void kill_app();
83    static atomic_t running = ATOMIC_INIT(1);
84    
85  int main(int argc, char **argv) {  int main(int argc, char **argv) {
86    
87      // initialize the stack trace mechanism with our binary file      Thread::setNameOfCaller("ls-main");
     StackTraceInit(argv[0], -1);  
88    
89      main_thread = pthread_self();      lscp_addr = htonl(LSCP_ADDR);
90        lscp_port = htons(LSCP_PORT);
     // setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)  
     signal(SIGINT, signal_handler);  
91    
92      // register signal handler for all unusual signals      #if !defined(WIN32)
93      // (we will print the stack trace and exit)      main_pid = getpid();
94      struct sigaction sact;      #endif
     sigemptyset(&sact.sa_mask);  
     sact.sa_flags   = 0;  
     sact.sa_handler = signal_handler;  
     sigaction(SIGSEGV, &sact, NULL);  
     sigaction(SIGBUS,  &sact, NULL);  
     sigaction(SIGILL,  &sact, NULL);  
     sigaction(SIGFPE,  &sact, NULL);  
     sigaction(SIGUSR1, &sact, NULL);  
     sigaction(SIGUSR2, &sact, NULL);  
95    
96      // parse and assign command line options      // parse and assign command line options
97      parse_options(argc, argv);      parse_options(argc, argv);
98    
99        // setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)
100        signal(SIGINT, signal_handler);
101    
102        // initialize the stack trace mechanism with our binary file
103        // (if requested by command line option)
104        if (bShowStackTrace) {
105            #if defined(WIN32)
106            // FIXME: sigaction() not supported on WIN32, we ignore it for now
107            #elif AC_APPLE_UNIVERSAL_BUILD
108            // not used for Xcode
109            #else
110            StackTraceInit(argv[0], -1);
111            // register signal handler for all unusual signals
112            // (we will print the stack trace and exit)
113            struct sigaction sact;
114            sigemptyset(&sact.sa_mask);
115            sact.sa_flags   = 0;
116            sact.sa_handler = signal_handler;
117            sigaction(SIGSEGV, &sact, NULL);
118            sigaction(SIGBUS,  &sact, NULL);
119            sigaction(SIGILL,  &sact, NULL);
120            sigaction(SIGFPE,  &sact, NULL);
121            sigaction(SIGUSR1, &sact, NULL);
122            sigaction(SIGUSR2, &sact, NULL);
123            #endif
124        }
125    
126      dmsg(1,("LinuxSampler %s\n", VERSION));      dmsg(1,("LinuxSampler %s\n", VERSION));
127      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"));
128        dmsg(1,("Copyright (C) 2005-2021 Christian Schoenebeck\n"));
129        dmsg(1,("Binary built: " __DATE__ "\n"))
130    
131        #if defined(WIN32)
132        #if 0
133        // some WIN32 memory info code which tries to determine the maximum lockable amount of memory (for debug purposes)
134        SYSTEM_INFO siSysInfo;
135        long physical_memory;
136        GetSystemInfo(&siSysInfo);
137        dmsg(2,("page size=%d\n", siSysInfo.dwPageSize));
138    
139        MEMORYSTATUSEX statex;
140            statex.dwLength = sizeof (statex);
141        GlobalMemoryStatusEx (&statex);
142        dmsg(2, ("There are %*I64d total Kbytes of physical memory.\n",
143              8, statex.ullTotalPhys));
144        dmsg(2, ("There are %*I64d free Kbytes of physical memory.\n",
145              8, statex.ullAvailPhys));
146        physical_memory = statex.ullTotalPhys;
147    
148        HANDLE hProcess = GetCurrentProcess();
149    
150        unsigned long MinimumWorkingSetSize, MaximumWorkingSetSize;
151        unsigned long DefaultMinimumWorkingSetSize, DefaultMaximumWorkingSetSize;
152        unsigned long RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize;
153        int res;
154    
155      if (tune)      res = GetProcessWorkingSetSize(hProcess, &DefaultMinimumWorkingSetSize, &DefaultMaximumWorkingSetSize);
156      {  
157              // detect and print system / CPU specific features      RequestedMaximumWorkingSetSize = physical_memory - 2*1024*1024;
158              String sFeatures;      RequestedMinimumWorkingSetSize = RequestedMaximumWorkingSetSize;
159              Features::detect();  
160  #if ARCH_X86      for(;;) {
161              if (Features::supportsMMX()) sFeatures += " MMX";          dmsg(2,("TRYING VALUES  RequestedMinimumWorkingSetSize=%d, RequestedMaximumWorkingSetSize=%d\n", RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize));
162              if (Features::supportsSSE()) sFeatures += " SSE";          res = SetProcessWorkingSetSize(hProcess, RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize);
163  #endif // ARCH_X86          dmsg(2,("AFTER SET: res = %d  RequestedMinimumWorkingSetSize=%d, RequestedMaximumWorkingSetSize=%d\n", res,RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize));
164              if (!sFeatures.size()) sFeatures = " None";  
165              dmsg(1,("Detected features:%s\n",sFeatures.c_str()));          res = GetProcessWorkingSetSize(hProcess, &MinimumWorkingSetSize, &MaximumWorkingSetSize);
166            dmsg(2,("AFTER GET: res = %d  MinimumWorkingSetSize=%d, MaximumWorkingSetSize=%d\n", res,MinimumWorkingSetSize, MaximumWorkingSetSize));
167    
168            if( RequestedMinimumWorkingSetSize == MinimumWorkingSetSize ) {
169                dmsg(2,("RequestedMinimumWorkingSetSize == MinimumWorkingSetSize. OK !\n"));
170                break;
171            }
172    
173            RequestedMinimumWorkingSetSize -=  10*1024*1024;
174            if(RequestedMinimumWorkingSetSize < DefaultMinimumWorkingSetSize) break;
175      }      }
176    
177        dmsg(2,("AFTER GetProcessWorkingSetSize: res = %d  MinimumWorkingSetSize=%d, MaximumWorkingSetSize=%d\n", res,MinimumWorkingSetSize, MaximumWorkingSetSize));
178        #endif
179        #endif // WIN32
180    
181        if (tune) {
182            // detect and print system / CPU specific features
183            Features::detect();
184            dmsg(1,("Detected features: %s\n", Features::featuresAsString().c_str()));
185            // prevent slow denormal FPU modes
186            Features::enableDenormalsAreZeroMode();
187        }
188    
189        dmsg(1,("Automatic Stacktrace: %s\n", (bShowStackTrace) ? "On" : "Off"));
190    
191      // create LinuxSampler instance      // create LinuxSampler instance
192      dmsg(1,("Creating Sampler..."));      dmsg(1,("Creating Sampler..."));
193      pSampler = new Sampler;      pSampler = new Sampler;
194      dmsg(1,("OK\n"));      dmsg(1,("OK\n"));
195    
196        dmsg(1,("Registered sampler engines: %s\n", EngineFactory::AvailableEngineTypesAsString().c_str()));
197      dmsg(1,("Registered MIDI input drivers: %s\n", MidiInputDeviceFactory::AvailableDriversAsString().c_str()));      dmsg(1,("Registered MIDI input drivers: %s\n", MidiInputDeviceFactory::AvailableDriversAsString().c_str()));
198      dmsg(1,("Registered audio output drivers: %s\n", AudioOutputDeviceFactory::AvailableDriversAsString().c_str()));      dmsg(1,("Registered audio output drivers: %s\n", AudioOutputDeviceFactory::AvailableDriversAsString().c_str()));
199        dmsg(1,("Registered instrument editors: %s\n", InstrumentEditorFactory::AvailableEditorsAsString().c_str()));
200        dmsg(1,("Registered internal effect systems: %s\n", EffectFactory::AvailableEffectSystemsAsString().c_str()));
201        dmsg(1,("Registered internal effects: %d\n", EffectFactory::AvailableEffectsCount()));
202    
203      // start LSCP network server      // start LSCP network server
204      dmsg(1,("Starting LSCP network server (on TCP port %d)...", LSCP_PORT));      struct in_addr addr;
205      pLSCPServer = new LSCPServer(pSampler);      addr.s_addr = (in_addr_t)lscp_addr;
206        dmsg(1,("Starting LSCP network server (%s:%d)...", inet_ntoa(addr), ntohs(lscp_port)));
207        pLSCPServer = new LSCPServer(pSampler, lscp_addr, lscp_port);
208      pLSCPServer->StartThread();      pLSCPServer->StartThread();
209      pLSCPServer->WaitUntilInitialized();      pLSCPServer->WaitUntilInitialized();
210      dmsg(1,("OK\n"));      dmsg(1,("OK\n"));
211    
212      if (profile)      if (profile)
213      {      {
214              dmsg(1,("Calibrating profiler..."));          dmsg(1,("Calibrating profiler..."));
215              gig::Profiler::Calibrate();          LinuxSampler::gig::Profiler::Calibrate();
216              gig::Profiler::Reset();          LinuxSampler::gig::Profiler::Reset();
217              dmsg(1,("OK\n"));          LinuxSampler::gig::Profiler::enable();
218            dmsg(1,("OK\n"));
219      }      }
220    
221      printf("LinuxSampler initialization completed.\n");      printf("LinuxSampler initialization completed. :-)\n\n");
222        
223        if (ExecAfterInit != "") {
224            printf("Executing command: %s\n\n", ExecAfterInit.c_str());
225            if (system(ExecAfterInit.c_str()) == -1) {
226                std::cerr << "Failed to execute the command" << std::endl;
227            }
228        }
229    
230      std::list<LSCPEvent::event_t> rtEvents;  //TODO: (hopefully) just a temporary nasty hack for launching gigedit on the main thread on Mac (see comments in gigedit.cpp for details)
231      rtEvents.push_back(LSCPEvent::event_voice_count);  #if defined(__APPLE__)
232      rtEvents.push_back(LSCPEvent::event_stream_count);      g_mainThreadCallbackSupported = true;
233      rtEvents.push_back(LSCPEvent::event_buffer_fill);  #endif
234    
235        while (atomic_read(&running)) {
236            if (bPrintStatistics) {
237                const std::set<Engine*>& engines = EngineFactory::EngineInstances();
238                std::set<Engine*>::iterator itEngine = engines.begin();
239                for (int i = 0; itEngine != engines.end(); itEngine++, i++) {
240                    Engine* pEngine = *itEngine;
241                    printf("Engine %d) Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d)\n", i,
242                        pEngine->VoiceCount(), pEngine->VoiceCountMax(),
243                        pEngine->DiskStreamCount(), pEngine->DiskStreamCountMax()
244                    );
245                    fflush(stdout);
246                }
247            }
248    
249      while(true)          sleep(1);
250      {          if (profile)
251        /*printf("Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d, Unused: %3.3d)\r",          {
252              pEngine->ActiveVoiceCount, pEngine->ActiveVoiceCountMax,              unsigned int samplingFreq = 48000; //FIXME: hardcoded for now
253              pEngine->pDiskThread->ActiveStreamCount, pEngine->pDiskThread->ActiveStreamCountMax, Stream::GetUnusedStreams());              unsigned int bv = LinuxSampler::gig::Profiler::GetBogoVoices(samplingFreq);
254        fflush(stdout);*/              if (bv != 0)
255        sleep(1);              {
256        if (profile)                  printf("       BogoVoices: %i         \r", bv);
257        {                  fflush(stdout);
258                unsigned int samplingFreq = 48000; //FIXME: hardcoded for now              }
259                unsigned int bv = gig::Profiler::GetBogoVoices(samplingFreq);          }
               if (bv != 0)  
               {  
                       printf("       BogoVoices: %i         \r", bv);  
                       fflush(stdout);  
               }  
       }  
         
       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;  
                       Engine* pEngine = pSamplerChannel->GetEngine();  
                       if (!pEngine) continue;  
                       LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_voice_count, iter->first, pEngine->VoiceCount()));  
                       LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_stream_count, iter->first, pEngine->DiskStreamCount()));  
                       LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_buffer_fill, iter->first, pEngine->DiskStreamBufferFillPercentage()));  
               }  
               LSCPServer::UnlockRTNotify();  
       }  
260    
261            pSampler->fireStatistics();
262            
263            //TODO: (hopefully) just a temporary nasty hack for launching gigedit on the main thread on Mac (see comments in gigedit.cpp for details)
264            #if defined(__APPLE__)
265            if (g_fireMainThreadCallback && g_mainThreadCallback) {
266                void (*fn)(void* info) = g_mainThreadCallback;
267                void* info = g_mainThreadCallbackInfo;
268                g_mainThreadCallbackInfo = NULL;
269                g_mainThreadCallback     = NULL;
270                g_fireMainThreadCallback = false;
271                printf("Received main thread callback, calling now ...\n"); fflush(stdout);
272                (*fn)(info);
273                printf("Main thread callback executed.\n"); fflush(stdout);
274            }
275            #endif
276      }      }
277    //#endif
278        if (pLSCPServer) pLSCPServer->StopThread();
279        // the delete order here is important: the Sampler
280        // destructor sends notifications to the lscpserver
281        if (pSampler) delete pSampler;
282        if (pLSCPServer) delete pLSCPServer;
283        printf("LinuxSampler stopped due to SIGINT.\n");
284      return EXIT_SUCCESS;      return EXIT_SUCCESS;
285  }  }
286    
287  void signal_handler(int iSignal) {  void signal_handler(int iSignal) {
288      switch (iSignal) {      switch (iSignal) {
289          case SIGINT: {          case SIGINT:
290              if (pthread_equal(pthread_self(), main_thread)) {              atomic_set(&running, 0);
                 if (pLSCPServer) {  
                     pLSCPServer->StopThread();  
                     delete pLSCPServer;  
                 }  
                 if (pSampler) delete pSampler;  
                 printf("LinuxSampler stopped due to SIGINT.\n");  
                 exit(EXIT_SUCCESS);  
             }  
291              return;              return;
292          }          #if defined(WIN32)
293            // FIXME: under WIN32 we ignore the signals below due to the missing sigaction call
294            #else
295          case SIGSEGV:          case SIGSEGV:
296              std::cerr << ">>> FATAL ERROR: Segmentation fault (SIGSEGV) occured! <<<\n" << std::flush;              std::cerr << ">>> FATAL ERROR: Segmentation fault (SIGSEGV) occured! <<<\n" << std::flush;
297              break;              break;
# Line 186  void signal_handler(int iSignal) { Line 310  void signal_handler(int iSignal) {
310          case SIGUSR2:          case SIGUSR2:
311              std::cerr << ">>> User defined signal 2 (SIGUSR2) received <<<\n" << std::flush;              std::cerr << ">>> User defined signal 2 (SIGUSR2) received <<<\n" << std::flush;
312              break;              break;
313            #endif
314          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
315              std::cerr << ">>> FATAL ERROR: Unknown signal received! <<<\n" << std::flush;              std::cerr << ">>> FATAL ERROR: Unknown signal received! <<<\n" << std::flush;
316              break;              break;
317          }          }
318      }      }
319      signal(iSignal, SIG_DFL); // Reinstall default handler to prevent race conditions      signal(iSignal, SIG_DFL); // Reinstall default handler to prevent race conditions
320      std::cerr << "Showing stack trace...\n" << std::flush;      if (bShowStackTrace) {
321      StackTrace();          std::cerr << "Showing stack trace...\n" << std::flush;
322      sleep(2);          #if !AC_APPLE_UNIVERSAL_BUILD
323            StackTrace();
324            #endif
325            sleep(2);
326        }
327      std::cerr << "Killing LinuxSampler...\n" << std::flush;      std::cerr << "Killing LinuxSampler...\n" << std::flush;
328      kill_app(); // Use abort() if we want to generate a core dump.      kill_app(); // Use abort() if we want to generate a core dump.
329  }  }
330    
331  void kill_app() {  void kill_app() {
332      kill(main_thread, SIGKILL);      #if defined(WIN32)
333        // FIXME: do we need to do anything at this point under WIN32 ?  is exit(0) ok ?
334        exit(0);
335        #else
336        kill(main_pid, SIGKILL);
337        #endif
338  }  }
339    
340  void parse_options(int argc, char **argv) {  void parse_options(int argc, char **argv) {
# Line 208  void parse_options(int argc, char **argv Line 342  void parse_options(int argc, char **argv
342      int option_index = 0;      int option_index = 0;
343      static struct option long_options[] =      static struct option long_options[] =
344          {          {
345              {"help",0,0,0},              {"help",no_argument,0,0},
346              {"version",0,0,0},              {"version",no_argument,0,0},
347              {"profile",0,0,0},              {"profile",no_argument,0,0},
348              {"no-tune",0,0,0},              {"no-tune",no_argument,0,0},
349                {"statistics",no_argument,0,0},
350                {"instruments-db-location",required_argument,0,0},
351                {"create-instruments-db",optional_argument,0,0},
352                {"lscp-addr",required_argument,0,0},
353                {"lscp-port",required_argument,0,0},
354                {"stacktrace",no_argument,0,0},
355                {"exec-after-init",required_argument,0,0},
356              {0,0,0,0}              {0,0,0,0}
357          };          };
358    
# Line 226  void parse_options(int argc, char **argv Line 367  void parse_options(int argc, char **argv
367              switch(option_index) {              switch(option_index) {
368                  case 0: // --help                  case 0: // --help
369                      printf("usage: linuxsampler [OPTIONS]\n\n");                      printf("usage: linuxsampler [OPTIONS]\n\n");
370                      printf("--help             prints this message\n");                      printf("--help                      prints this message\n");
371                      printf("--version          prints version information\n");                      printf("--version                   prints version information\n");
372                      printf("--profile          profile synthesis algorithms\n");                      printf("--profile                   profile synthesis algorithms\n");
373                      printf("--no-tune          disable assembly optimization\n");                      printf("--no-tune                   disable assembly optimization\n");
374                        printf("--statistics                periodically prints statistics\n");
375                        printf("--lscp-addr                 set LSCP address (default: any)\n");
376                        printf("--lscp-port                 set LSCP port (default: 8888)\n");
377                        printf("--create-instruments-db     creates an instruments DB\n");
378                        printf("--instruments-db-location   specifies the instruments DB file\n");
379                        printf("--stacktrace                automatically shows stacktrace if crashes\n");
380                        printf("                            (broken on most systems at the moment)\n");
381                        printf("--exec-after-init           executes a command after initialization\n");
382                      exit(EXIT_SUCCESS);                      exit(EXIT_SUCCESS);
383                      break;                      break;
384                  case 1: // --version                  case 1: // --version
# Line 237  void parse_options(int argc, char **argv Line 386  void parse_options(int argc, char **argv
386                      exit(EXIT_SUCCESS);                      exit(EXIT_SUCCESS);
387                      break;                      break;
388                  case 2: // --profile                  case 2: // --profile
389                      profile = true;                      profile = true;
390                        //FIXME: profiling code is currently broken!
391                        std::cerr << "Option '--profile' is currently not supported, since the profiling code is currently broken!"  << std::endl;
392                        exit(EXIT_FAILURE);
393                      break;                      break;
394                  case 3: // --no-tune                  case 3: // --no-tune
395                      tune = false;                      tune = false;
396                        break;
397                    case 4: // --statistics
398                        bPrintStatistics = true;
399                        break;
400                    case 5: // --instruments-db-location
401    #if HAVE_SQLITE3
402                        try {
403                            if (optarg) {
404                                struct stat statBuf;
405                                int res = stat(optarg, &statBuf);
406    
407                                if (res) {
408                                    std::stringstream ss;
409                                    ss << "Failed to stat `" << optarg << "`: " << strerror(errno);
410                                    throw Exception(ss.str());
411                                }
412    
413                                if (!S_ISREG(statBuf.st_mode)) {
414                                    std::stringstream ss;
415                                    ss << "`" << optarg << "` is not a regular file";
416                                    throw Exception(ss.str());
417                                }
418    
419                                InstrumentsDb::GetInstrumentsDb()->SetDbFile(String(optarg));
420                            }
421                        } catch(Exception e) {
422                            std::cerr << "Could not open instruments DB file: "
423                                      << e.Message() << std::endl;
424                            exit(EXIT_FAILURE);
425                        }
426                        break;
427    #else
428                        std::cerr << "LinuxSampler was not build with ";
429                        std::cerr << "instruments database support!\n";
430                        exit(EXIT_FAILURE);
431                        break;
432    #endif
433                    case 6: // --create-instruments-db
434    #if HAVE_SQLITE3
435                        try {
436                            std::cout << "Creating instruments database..." << std::endl;
437                            if (optarg) // with glibc this only fires with form --create-instruments-db=bla (see below)
438                                InstrumentsDb::GetInstrumentsDb()->CreateInstrumentsDb(String(optarg));
439                            else if (argv[optind] && argv[optind][0] != '-') // workaround: glibc actually expects form --foo=value for all optional arguments ...
440                                InstrumentsDb::GetInstrumentsDb()->CreateInstrumentsDb(String(argv[optind++]));
441                            else
442                                InstrumentsDb::GetInstrumentsDb()->CreateInstrumentsDb(); // use default instruments db location
443                            std::cout << "Done" << std::endl;
444                        } catch(Exception e) {
445                            std::cerr << e.Message() << std::endl;
446                            exit(EXIT_FAILURE);
447                            return;
448                        }
449    
450                        exit(EXIT_SUCCESS);
451                        return;
452    #else
453                        std::cerr << "Failed to create the database. LinuxSampler was ";
454                        std::cerr << "not build with instruments database support!\n";
455                        exit(EXIT_FAILURE);
456                        return;
457    #endif
458                    case 7: { // --lscp-addr
459                        struct in_addr addr;
460                        if (inet_aton(optarg, &addr) == 0)
461                            printf("WARNING: Failed to parse lscp-addr argument, ignoring!\n");
462                        else
463                            lscp_addr = addr.s_addr;
464                        break;
465                    }
466                    case 8: {// --lscp-port
467                        long unsigned int port = 0;
468                        if ((sscanf(optarg, "%lu", &port) != 1) || (port == 0) || (port > 65535))
469                            printf("WARNING: Failed to parse lscp-port argument, ignoring!\n");
470                        else
471                            lscp_port = htons(port);
472                        break;
473                    }
474                    case 9: // --stacktrace
475                        bShowStackTrace = true;
476                        break;
477                    case 10: // --exec-after-init
478                        ExecAfterInit = optarg;
479                      break;                      break;
480              }              }
481          }          }
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