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

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revision 12 by schoenebeck, Sun Nov 16 19:01:50 2003 UTC revision 3056 by schoenebeck, Fri Dec 16 12:57:59 2016 UTC
# Line 2  Line 2 
2   *                                                                         *   *                                                                         *
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003 by Benno Senoner and Christian Schoenebeck         *   *   Copyright (C) 2003-2004 by Benno Senoner and Christian Schoenebeck    *
6     *   Copyright (C) 2005-2016 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 20  Line 21 
21   *   MA  02111-1307  USA                                                   *   *   MA  02111-1307  USA                                                   *
22   ***************************************************************************/   ***************************************************************************/
23    
 #include <stdio.h>  
 #include <stdlib.h>  
 #include <unistd.h>  
24  #include <getopt.h>  #include <getopt.h>
25  #include <signal.h>  #include <signal.h>
26    #include <sys/stat.h>
27    
28  #include "global.h"  #if defined(WIN32)
29  #include "audioio.h"  // require at least Windows 2000 for the GlobalMemoryStatusEx() call
30  #include "diskthread.h"  #if _WIN32_WINNT < 0x0500
31  #include "audiothread.h"  #ifdef _WIN32_WINNT
32  #include "midiin.h"  #undef _WIN32_WINNT
33  #include "stream.h"  #endif
34  #include "RIFF.h"  #define _WIN32_WINNT 0x0500
35  #include "gig.h"  #endif
36    #endif
37  #define AUDIO_CHANNELS          2     // stereo  
38  #define AUDIO_FRAGMENTS         3     // 3 fragments, if it does not work set it to 2  #include "Sampler.h"
39  #define AUDIO_FRAGMENTSIZE      512   // each fragment has 512 frames  #include "common/global_private.h"
40  #define AUDIO_SAMPLERATE        44100 // Hz  #include "engines/EngineFactory.h"
41    #include "plugins/InstrumentEditorFactory.h"
42  enum patch_format_t {  #include "drivers/midi/MidiInputDeviceFactory.h"
43      patch_format_unknown,  #include "drivers/audio/AudioOutputDeviceFactory.h"
44      patch_format_gig,  #include "effects/EffectFactory.h"
45      patch_format_dls  #include "engines/gig/Profiler.h"
46  } patch_format;  #include "network/lscpserver.h"
47    #include "common/stacktrace.h"
48  AudioIO*         pAudioIO;  #include "common/Features.h"
49  DiskThread*      pDiskThread;  #include "common/atomic.h"
50  AudioThread*     pAudioThread;  
51  MidiIn*          pMidiInThread;  using namespace LinuxSampler;
52  RIFF::File*      pRIFF;  
53  gig::File*       pGig;  Sampler*    pSampler    = NULL;
54  gig::Instrument* pInstrument;  LSCPServer* pLSCPServer = NULL;
55  int              num_fragments;  #if defined(WIN32)
56  int              fragmentsize;  // inet_aton seems missing under WIN32
57    #ifndef INADDR_NONE
58    #define INADDR_NONE 0xffffffff
59    typedef unsigned long in_addr_t;
60    #endif
61    
62    int inet_aton(const char *cp, struct in_addr *addr)
63    {
64        addr->s_addr = inet_addr(cp);
65        return (addr->s_addr == INADDR_NONE) ? 0 : 1;
66    }
67    
68    #else
69    pid_t       main_pid;
70    #endif
71    bool bPrintStatistics = false;
72    bool profile = false;
73    bool tune = true;
74    static bool bShowStackTrace = false;
75    unsigned long int lscp_addr;
76    unsigned short int lscp_port;
77    String ExecAfterInit;
78    
79  void parse_options(int argc, char **argv);  void parse_options(int argc, char **argv);
80  void signal_handler(int signal);  void signal_handler(int signal);
81    void kill_app();
82    static atomic_t running = ATOMIC_INIT(1);
83    
84  int main(int argc, char **argv) {  int main(int argc, char **argv) {
     pAudioIO = NULL;  
     pRIFF    = NULL;  
     pGig     = NULL;  
85    
86      // setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)      lscp_addr = htonl(LSCP_ADDR);
87      signal(SIGINT, signal_handler);      lscp_port = htons(LSCP_PORT);
88    
89      patch_format      = patch_format_unknown;      #if !defined(WIN32)
90      num_fragments     = AUDIO_FRAGMENTS;      main_pid = getpid();
91      fragmentsize      = AUDIO_FRAGMENTSIZE;      #endif
92    
93      // parse and assign command line options      // parse and assign command line options
94      parse_options(argc, argv);      parse_options(argc, argv);
95    
96      if (patch_format != patch_format_gig) {      // setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)
97          printf("Sorry only Gigasampler loading migrated in LinuxSampler so far, use --gig to load a .gig file!\n");      signal(SIGINT, signal_handler);
98          return EXIT_FAILURE;  
99        // initialize the stack trace mechanism with our binary file
100        // (if requested by command line option)
101        if (bShowStackTrace) {
102            #if defined(WIN32)
103            // FIXME: sigaction() not supported on WIN32, we ignore it for now
104            #elif AC_APPLE_UNIVERSAL_BUILD
105            // not used for Xcode
106            #else
107            StackTraceInit(argv[0], -1);
108            // register signal handler for all unusual signals
109            // (we will print the stack trace and exit)
110            struct sigaction sact;
111            sigemptyset(&sact.sa_mask);
112            sact.sa_flags   = 0;
113            sact.sa_handler = signal_handler;
114            sigaction(SIGSEGV, &sact, NULL);
115            sigaction(SIGBUS,  &sact, NULL);
116            sigaction(SIGILL,  &sact, NULL);
117            sigaction(SIGFPE,  &sact, NULL);
118            sigaction(SIGUSR1, &sact, NULL);
119            sigaction(SIGUSR2, &sact, NULL);
120            #endif
121      }      }
122    
123      dmsg(1,("Initializing audio output..."));      dmsg(1,("LinuxSampler %s\n", VERSION));
124      pAudioIO = new AudioIO();      dmsg(1,("Copyright (C) 2003,2004 by Benno Senoner and Christian Schoenebeck\n"));
125      int error = pAudioIO->Initialize(AUDIO_CHANNELS, AUDIO_SAMPLERATE, num_fragments, fragmentsize);      dmsg(1,("Copyright (C) 2005-2016 Christian Schoenebeck\n"));
126      if (error) return EXIT_FAILURE;      dmsg(1,("Binary built: " __DATE__ "\n"))
127      dmsg(1,("OK\n"));  
128        #if defined(WIN32)
129        #if 0
130        // some WIN32 memory info code which tries to determine the maximum lockable amount of memory (for debug purposes)
131        SYSTEM_INFO siSysInfo;
132        long physical_memory;
133        GetSystemInfo(&siSysInfo);
134        dmsg(2,("page size=%d\n", siSysInfo.dwPageSize));
135    
136        MEMORYSTATUSEX statex;
137            statex.dwLength = sizeof (statex);
138        GlobalMemoryStatusEx (&statex);
139        dmsg(2, ("There are %*I64d total Kbytes of physical memory.\n",
140              8, statex.ullTotalPhys));
141        dmsg(2, ("There are %*I64d free Kbytes of physical memory.\n",
142              8, statex.ullAvailPhys));
143        physical_memory = statex.ullTotalPhys;
144    
145        HANDLE hProcess = GetCurrentProcess();
146    
147        unsigned long MinimumWorkingSetSize, MaximumWorkingSetSize;
148        unsigned long DefaultMinimumWorkingSetSize, DefaultMaximumWorkingSetSize;
149        unsigned long RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize;
150        int res;
151    
152      // Loading gig file      res = GetProcessWorkingSetSize(hProcess, &DefaultMinimumWorkingSetSize, &DefaultMaximumWorkingSetSize);
     try {  
         printf("Loading gig file...");  
         fflush(stdout);  
         pRIFF       = new RIFF::File(argv[argc - 1]);  
         pGig        = new gig::File(pRIFF);  
         pInstrument = pGig->GetFirstInstrument();  
         pGig->GetFirstSample(); // just to complete instrument loading before we enter the realtime part  
         printf("OK\n");  
         fflush(stdout);  
     }  
     catch (RIFF::Exception e) {  
         e.PrintMessage();  
         return EXIT_FAILURE;  
     }  
     catch (...) {  
         printf("Unknown exception while trying to parse gig file.\n");  
         return EXIT_FAILURE;  
     }  
   
     DiskThread*  pDiskThread   = new DiskThread(((pAudioIO->FragmentSize << MAX_PITCH) << 1) + 3); //FIXME: assuming stereo  
     AudioThread* pAudioThread  = new AudioThread(pAudioIO, pDiskThread, pInstrument);  
     MidiIn*      pMidiInThread = new MidiIn(pAudioThread);  
153    
154      dmsg(1,("Starting disk thread..."));      RequestedMaximumWorkingSetSize = physical_memory - 2*1024*1024;
155      pDiskThread->StartThread();      RequestedMinimumWorkingSetSize = RequestedMaximumWorkingSetSize;
     dmsg(1,("OK\n"));  
     dmsg(1,("Starting MIDI in thread..."));  
     pMidiInThread->StartThread();  
     dmsg(1,("OK\n"));  
156    
157      sleep(1);      for(;;) {
158      dmsg(1,("Starting audio thread..."));          dmsg(2,("TRYING VALUES  RequestedMinimumWorkingSetSize=%d, RequestedMaximumWorkingSetSize=%d\n", RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize));
159      pAudioThread->StartThread();          res = SetProcessWorkingSetSize(hProcess, RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize);
160            dmsg(2,("AFTER SET: res = %d  RequestedMinimumWorkingSetSize=%d, RequestedMaximumWorkingSetSize=%d\n", res,RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize));
161    
162            res = GetProcessWorkingSetSize(hProcess, &MinimumWorkingSetSize, &MaximumWorkingSetSize);
163            dmsg(2,("AFTER GET: res = %d  MinimumWorkingSetSize=%d, MaximumWorkingSetSize=%d\n", res,MinimumWorkingSetSize, MaximumWorkingSetSize));
164    
165            if( RequestedMinimumWorkingSetSize == MinimumWorkingSetSize ) {
166                dmsg(2,("RequestedMinimumWorkingSetSize == MinimumWorkingSetSize. OK !\n"));
167                break;
168            }
169    
170            RequestedMinimumWorkingSetSize -=  10*1024*1024;
171            if(RequestedMinimumWorkingSetSize < DefaultMinimumWorkingSetSize) break;
172        }
173    
174        dmsg(2,("AFTER GetProcessWorkingSetSize: res = %d  MinimumWorkingSetSize=%d, MaximumWorkingSetSize=%d\n", res,MinimumWorkingSetSize, MaximumWorkingSetSize));
175        #endif
176        #endif // WIN32
177    
178        if (tune) {
179            // detect and print system / CPU specific features
180            Features::detect();
181            dmsg(1,("Detected features: %s\n", Features::featuresAsString().c_str()));
182            // prevent slow denormal FPU modes
183            Features::enableDenormalsAreZeroMode();
184        }
185    
186        dmsg(1,("Automatic Stacktrace: %s\n", (bShowStackTrace) ? "On" : "Off"));
187    
188        // create LinuxSampler instance
189        dmsg(1,("Creating Sampler..."));
190        pSampler = new Sampler;
191      dmsg(1,("OK\n"));      dmsg(1,("OK\n"));
192    
193      printf("LinuxSampler initialization completed.\n");      dmsg(1,("Registered sampler engines: %s\n", EngineFactory::AvailableEngineTypesAsString().c_str()));
194        dmsg(1,("Registered MIDI input drivers: %s\n", MidiInputDeviceFactory::AvailableDriversAsString().c_str()));
195        dmsg(1,("Registered audio output drivers: %s\n", AudioOutputDeviceFactory::AvailableDriversAsString().c_str()));
196        dmsg(1,("Registered instrument editors: %s\n", InstrumentEditorFactory::AvailableEditorsAsString().c_str()));
197        dmsg(1,("Registered internal effect systems: %s\n", EffectFactory::AvailableEffectSystemsAsString().c_str()));
198        dmsg(1,("Registered internal effects: %d\n", EffectFactory::AvailableEffectsCount()));
199    
200        // start LSCP network server
201        struct in_addr addr;
202        addr.s_addr = (in_addr_t)lscp_addr;
203        dmsg(1,("Starting LSCP network server (%s:%d)...", inet_ntoa(addr), ntohs(lscp_port)));
204        pLSCPServer = new LSCPServer(pSampler, lscp_addr, lscp_port);
205        pLSCPServer->StartThread();
206        pLSCPServer->WaitUntilInitialized();
207        dmsg(1,("OK\n"));
208    
209      while(true)  {      if (profile)
210        printf("Voices: %3.3d  Streams: %3.3d  \r",pAudioThread->ActiveVoiceCount, pDiskThread->ActiveStreamCount); fflush(stdout);      {
211        usleep(500000);          dmsg(1,("Calibrating profiler..."));
212            LinuxSampler::gig::Profiler::Calibrate();
213            LinuxSampler::gig::Profiler::Reset();
214            LinuxSampler::gig::Profiler::enable();
215            dmsg(1,("OK\n"));
216      }      }
217    
218      return EXIT_SUCCESS;      printf("LinuxSampler initialization completed. :-)\n\n");
219  }      
220        if (ExecAfterInit != "") {
221            printf("Executing command: %s\n\n", ExecAfterInit.c_str());
222            if (system(ExecAfterInit.c_str()) == -1) {
223                std::cerr << "Failed to execute the command" << std::endl;
224            }
225        }
226    
227  void signal_handler(int signal) {  //TODO: (hopefully) just a temporary nasty hack for launching gigedit on the main thread on Mac (see comments in gigedit.cpp for details)
228      if (signal == SIGINT) {  #if defined(__APPLE__)
229          // stop all threads      g_mainThreadCallbackSupported = true;
230          if (pMidiInThread) pMidiInThread->StopThread();  #endif
231          if (pAudioThread)  pAudioThread->StopThread();  
232          if (pDiskThread)   pDiskThread->StopThread();      while (atomic_read(&running)) {
233            if (bPrintStatistics) {
234                const std::set<Engine*>& engines = EngineFactory::EngineInstances();
235                std::set<Engine*>::iterator itEngine = engines.begin();
236                for (int i = 0; itEngine != engines.end(); itEngine++, i++) {
237                    Engine* pEngine = *itEngine;
238                    printf("Engine %d) Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d)\n", i,
239                        pEngine->VoiceCount(), pEngine->VoiceCountMax(),
240                        pEngine->DiskStreamCount(), pEngine->DiskStreamCountMax()
241                    );
242                    fflush(stdout);
243                }
244            }
245    
246          sleep(1);          sleep(1);
247            if (profile)
248            {
249                unsigned int samplingFreq = 48000; //FIXME: hardcoded for now
250                unsigned int bv = LinuxSampler::gig::Profiler::GetBogoVoices(samplingFreq);
251                if (bv != 0)
252                {
253                    printf("       BogoVoices: %i         \r", bv);
254                    fflush(stdout);
255                }
256            }
257    
258          // free all resources          pSampler->fireStatistics();
259          if (pMidiInThread) delete pMidiInThread;          
260          if (pAudioThread)  delete pAudioThread;          //TODO: (hopefully) just a temporary nasty hack for launching gigedit on the main thread on Mac (see comments in gigedit.cpp for details)
261          if (pDiskThread)   delete pDiskThread;          #if defined(__APPLE__)
262          if (pGig)          delete pGig;          if (g_fireMainThreadCallback && g_mainThreadCallback) {
263          if (pRIFF)         delete pRIFF;              void (*fn)(void* info) = g_mainThreadCallback;
264          if (pAudioIO)      delete pAudioIO;              void* info = g_mainThreadCallbackInfo;
265                g_mainThreadCallbackInfo = NULL;
266                g_mainThreadCallback     = NULL;
267                g_fireMainThreadCallback = false;
268                printf("Received main thread callback, calling now ...\n"); fflush(stdout);
269                (*fn)(info);
270                printf("Main thread callback executed.\n"); fflush(stdout);
271            }
272            #endif
273        }
274    //#endif
275        if (pLSCPServer) pLSCPServer->StopThread();
276        // the delete order here is important: the Sampler
277        // destructor sends notifications to the lscpserver
278        if (pSampler) delete pSampler;
279        if (pLSCPServer) delete pLSCPServer;
280        printf("LinuxSampler stopped due to SIGINT.\n");
281        return EXIT_SUCCESS;
282    }
283    
284          printf("LinuxSampler stopped due to SIGINT\n");  void signal_handler(int iSignal) {
285          exit(EXIT_SUCCESS);      switch (iSignal) {
286            case SIGINT:
287                atomic_set(&running, 0);
288                return;
289            #if defined(WIN32)
290            // FIXME: under WIN32 we ignore the signals below due to the missing sigaction call
291            #else
292            case SIGSEGV:
293                std::cerr << ">>> FATAL ERROR: Segmentation fault (SIGSEGV) occured! <<<\n" << std::flush;
294                break;
295            case SIGBUS:
296                std::cerr << ">>> FATAL ERROR: Access to undefined portion of a memory object (SIGBUS) occured! <<<\n" << std::flush;
297                break;
298            case SIGILL:
299                std::cerr << ">>> FATAL ERROR: Illegal instruction (SIGILL) occured! <<<\n" << std::flush;
300                break;
301            case SIGFPE:
302                std::cerr << ">>> FATAL ERROR: Erroneous arithmetic operation (SIGFPE) occured! <<<\n" << std::flush;
303                break;
304            case SIGUSR1:
305                std::cerr << ">>> User defined signal 1 (SIGUSR1) received <<<\n" << std::flush;
306                break;
307            case SIGUSR2:
308                std::cerr << ">>> User defined signal 2 (SIGUSR2) received <<<\n" << std::flush;
309                break;
310            #endif
311            default: { // this should never happen, as we register for the signals we want
312                std::cerr << ">>> FATAL ERROR: Unknown signal received! <<<\n" << std::flush;
313                break;
314            }
315      }      }
316        signal(iSignal, SIG_DFL); // Reinstall default handler to prevent race conditions
317        if (bShowStackTrace) {
318            std::cerr << "Showing stack trace...\n" << std::flush;
319            #if !AC_APPLE_UNIVERSAL_BUILD
320            StackTrace();
321            #endif
322            sleep(2);
323        }
324        std::cerr << "Killing LinuxSampler...\n" << std::flush;
325        kill_app(); // Use abort() if we want to generate a core dump.
326    }
327    
328    void kill_app() {
329        #if defined(WIN32)
330        // FIXME: do we need to do anything at this point under WIN32 ?  is exit(0) ok ?
331        exit(0);
332        #else
333        kill(main_pid, SIGKILL);
334        #endif
335  }  }
336    
337  void parse_options(int argc, char **argv) {  void parse_options(int argc, char **argv) {
# Line 158  void parse_options(int argc, char **argv Line 339  void parse_options(int argc, char **argv
339      int option_index = 0;      int option_index = 0;
340      static struct option long_options[] =      static struct option long_options[] =
341          {          {
             {"numfragments",1,0,0},  
             {"fragmentsize",1,0,0},  
             {"dls",0,0,0},  
             {"gig",0,0,0},  
342              {"help",0,0,0},              {"help",0,0,0},
343                {"version",0,0,0},
344                {"profile",0,0,0},
345                {"no-tune",0,0,0},
346                {"statistics",0,0,0},
347                {"instruments-db-location",1,0,0},
348                {"create-instruments-db",1,0,0},
349                {"lscp-addr",1,0,0},
350                {"lscp-port",1,0,0},
351                {"stacktrace",0,0,0},
352                {"exec-after-init",1,0,0},
353              {0,0,0,0}              {0,0,0,0}
354          };          };
355    
356      while (true) {      while (true) {
357          res = getopt_long_only(argc, argv, "", long_options, &option_index);          /*
358              Stephane Letz : letz@grame.fr
359              getopt_long_only does not exist on OSX : replaced by getopt_long for now.
360            */
361            res = getopt_long(argc, argv, "", long_options, &option_index);
362          if(res == -1) break;          if(res == -1) break;
363          if (res == 0) {          if (res == 0) {
364              switch(option_index) {              switch(option_index) {
365                  case 0:                  case 0: // --help
366                      num_fragments = atoi(optarg);                      printf("usage: linuxsampler [OPTIONS]\n\n");
367                        printf("--help                      prints this message\n");
368                        printf("--version                   prints version information\n");
369                        printf("--profile                   profile synthesis algorithms\n");
370                        printf("--no-tune                   disable assembly optimization\n");
371                        printf("--statistics                periodically prints statistics\n");
372                        printf("--lscp-addr                 set LSCP address (default: any)\n");
373                        printf("--lscp-port                 set LSCP port (default: 8888)\n");
374                        printf("--create-instruments-db     creates an instruments DB\n");
375                        printf("--instruments-db-location   specifies the instruments DB file\n");
376                        printf("--stacktrace                automatically shows stacktrace if crashes\n");
377                        printf("                            (broken on most systems at the moment)\n");
378                        printf("--exec-after-init           executes a command after initialization\n");
379                        exit(EXIT_SUCCESS);
380                        break;
381                    case 1: // --version
382                        printf("LinuxSampler %s\n", VERSION);
383                        exit(EXIT_SUCCESS);
384                        break;
385                    case 2: // --profile
386                        profile = true;
387                        //FIXME: profiling code is currently broken!
388                        std::cerr << "Option '--profile' is currently not supported, since the profiling code is currently broken!"  << std::endl;
389                        exit(EXIT_FAILURE);
390                        break;
391                    case 3: // --no-tune
392                        tune = false;
393                        break;
394                    case 4: // --statistics
395                        bPrintStatistics = true;
396                        break;
397                    case 5: // --instruments-db-location
398    #if HAVE_SQLITE3
399                        try {
400                            if (optarg) {
401                                struct stat statBuf;
402                                int res = stat(optarg, &statBuf);
403    
404                                if (res) {
405                                    std::stringstream ss;
406                                    ss << "Failed to stat `" << optarg << "`: " << strerror(errno);
407                                    throw Exception(ss.str());
408                                }
409    
410                                if (!S_ISREG(statBuf.st_mode)) {
411                                    std::stringstream ss;
412                                    ss << "`" << optarg << "` is not a regular file";
413                                    throw Exception(ss.str());
414                                }
415    
416                                InstrumentsDb::GetInstrumentsDb()->SetDbFile(String(optarg));
417                            }
418                        } catch(Exception e) {
419                            std::cerr << "Could not open instruments DB file: "
420                                      << e.Message() << std::endl;
421                            exit(EXIT_FAILURE);
422                        }
423                        break;
424    #else
425                        std::cerr << "LinuxSampler was not build with ";
426                        std::cerr << "instruments database support!\n";
427                        exit(EXIT_FAILURE);
428                        break;
429    #endif
430                    case 6: // --create-instruments-db
431    #if HAVE_SQLITE3
432                        try {
433                            if (optarg) {
434                                std::cout << "Creating instruments database..." << std::endl;
435                                InstrumentsDb::CreateInstrumentsDb(String(optarg));
436                                std::cout << "Done" << std::endl;
437                            }
438                        } catch(Exception e) {
439                            std::cerr << e.Message() << std::endl;
440                            exit(EXIT_FAILURE);
441                            return;
442                        }
443    
444                        exit(EXIT_SUCCESS);
445                        return;
446    #else
447                        std::cerr << "Failed to create the database. LinuxSampler was ";
448                        std::cerr << "not build with instruments database support!\n";
449                        exit(EXIT_FAILURE);
450                        return;
451    #endif
452                    case 7: { // --lscp-addr
453                        struct in_addr addr;
454                        if (inet_aton(optarg, &addr) == 0)
455                            printf("WARNING: Failed to parse lscp-addr argument, ignoring!\n");
456                        else
457                            lscp_addr = addr.s_addr;
458                      break;                      break;
459                  case 1:                  }
460                      fragmentsize = atoi(optarg);                  case 8: {// --lscp-port
461                        long unsigned int port = 0;
462                        if ((sscanf(optarg, "%lu", &port) != 1) || (port == 0) || (port > 65535))
463                            printf("WARNING: Failed to parse lscp-port argument, ignoring!\n");
464                        else
465                            lscp_port = htons(port);
466                      break;                      break;
467                  case 2:                  }
468                      patch_format = patch_format_dls;                  case 9: // --stacktrace
469                        bShowStackTrace = true;
470                      break;                      break;
471                  case 3:                  case 10: // --exec-after-init
472                      patch_format = patch_format_gig;                      ExecAfterInit = optarg;
                     break;  
                 case 4:  
                     printf("usage: linuxsampler [OPTIONS] <INSTRUMENTFILE>\n\n");  
                     printf("--numfragments     sets the number of audio fragments\n");  
                     printf("--fragmentsize     sets the fragment size\n");  
                     printf("--dls              loads a DLS instrument\n");  
                     printf("--gig              loads a Gigasampler instrument\n");  
                     exit(0);  
473                      break;                      break;
474              }              }
475          }          }
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