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

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Revision 2885 - (hide annotations) (download)
Fri Apr 22 15:37:45 2016 UTC (7 years, 11 months ago) by schoenebeck
File size: 19401 byte(s)
* Instrument script classes now exported with the liblinuxsampler C++ API.
* Added new API method ScriptVM::syntaxHighlighting() which provides
  a convenient syntax highlighting backend for external instrument
  script editor applications.
* Bumped version (2.0.0.svn5).

1 schoenebeck 9 /***************************************************************************
2     * *
3     * LinuxSampler - modular, streaming capable sampler *
4     * *
5 persson 1644 * Copyright (C) 2003-2004 by Benno Senoner and Christian Schoenebeck *
6 persson 2856 * Copyright (C) 2005-2016 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 persson 1908 #include <sys/stat.h>
27 schoenebeck 9
28 senoner 1502 #if defined(WIN32)
29     // require at least Windows 2000 for the GlobalMemoryStatusEx() call
30 persson 1895 #if _WIN32_WINNT < 0x0500
31     #ifdef _WIN32_WINNT
32     #undef _WIN32_WINNT
33     #endif
34 senoner 1502 #define _WIN32_WINNT 0x0500
35     #endif
36 persson 1895 #endif
37 senoner 1502
38 schoenebeck 53 #include "Sampler.h"
39 schoenebeck 1424 #include "common/global_private.h"
40 schoenebeck 420 #include "engines/EngineFactory.h"
41 schoenebeck 1375 #include "plugins/InstrumentEditorFactory.h"
42 schoenebeck 207 #include "drivers/midi/MidiInputDeviceFactory.h"
43 schoenebeck 203 #include "drivers/audio/AudioOutputDeviceFactory.h"
44 schoenebeck 2124 #include "effects/EffectFactory.h"
45 senkov 325 #include "engines/gig/Profiler.h"
46 schoenebeck 35 #include "network/lscpserver.h"
47 schoenebeck 271 #include "common/stacktrace.h"
48 schoenebeck 319 #include "common/Features.h"
49 persson 1534 #include "common/atomic.h"
50 schoenebeck 9
51 schoenebeck 53 using namespace LinuxSampler;
52    
53 schoenebeck 211 Sampler* pSampler = NULL;
54     LSCPServer* pLSCPServer = NULL;
55 senoner 1502 #if defined(WIN32)
56     // inet_aton seems missing under WIN32
57     #ifndef INADDR_NONE
58     #define INADDR_NONE 0xffffffff
59     #endif
60    
61     int inet_aton(const char *cp, struct in_addr *addr)
62     {
63     addr->s_addr = inet_addr(cp);
64     return (addr->s_addr == INADDR_NONE) ? 0 : 1;
65     }
66    
67     #else
68 wylder 816 pid_t main_pid;
69 senoner 1502 #endif
70 schoenebeck 420 bool bPrintStatistics = false;
71 senkov 325 bool profile = false;
72     bool tune = true;
73 schoenebeck 1830 static bool bShowStackTrace = false;
74 senkov 667 unsigned long int lscp_addr;
75     unsigned short int lscp_port;
76 iliev 2306 String ExecAfterInit;
77 schoenebeck 9
78     void parse_options(int argc, char **argv);
79     void signal_handler(int signal);
80 schoenebeck 271 void kill_app();
81 persson 1534 static atomic_t running = ATOMIC_INIT(1);
82 schoenebeck 9
83     int main(int argc, char **argv) {
84    
85 schoenebeck 1830 lscp_addr = htonl(LSCP_ADDR);
86     lscp_port = htons(LSCP_PORT);
87    
88     #if !defined(WIN32)
89     main_pid = getpid();
90     #endif
91    
92     // parse and assign command line options
93     parse_options(argc, argv);
94    
95     // setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)
96     signal(SIGINT, signal_handler);
97    
98 schoenebeck 271 // initialize the stack trace mechanism with our binary file
99 schoenebeck 1830 // (if requested by command line option)
100     if (bShowStackTrace) {
101     #if defined(WIN32)
102     // FIXME: sigaction() not supported on WIN32, we ignore it for now
103     #else
104     StackTraceInit(argv[0], -1);
105     // register signal handler for all unusual signals
106     // (we will print the stack trace and exit)
107     struct sigaction sact;
108     sigemptyset(&sact.sa_mask);
109     sact.sa_flags = 0;
110     sact.sa_handler = signal_handler;
111     sigaction(SIGSEGV, &sact, NULL);
112     sigaction(SIGBUS, &sact, NULL);
113     sigaction(SIGILL, &sact, NULL);
114     sigaction(SIGFPE, &sact, NULL);
115     sigaction(SIGUSR1, &sact, NULL);
116     sigaction(SIGUSR2, &sact, NULL);
117     #endif
118     }
119 schoenebeck 271
120 schoenebeck 1830 dmsg(1,("LinuxSampler %s\n", VERSION));
121     dmsg(1,("Copyright (C) 2003,2004 by Benno Senoner and Christian Schoenebeck\n"));
122 persson 2856 dmsg(1,("Copyright (C) 2005-2016 Christian Schoenebeck\n"));
123 schoenebeck 2885 dmsg(1,("Binary built: " __DATE__ "\n"))
124 schoenebeck 1830
125 senoner 1502 #if defined(WIN32)
126 persson 1888 #if 0
127 senoner 1502 // some WIN32 memory info code which tries to determine the maximum lockable amount of memory (for debug purposes)
128     SYSTEM_INFO siSysInfo;
129     long physical_memory;
130     GetSystemInfo(&siSysInfo);
131 persson 1888 dmsg(2,("page size=%d\n", siSysInfo.dwPageSize));
132 senoner 1502
133     MEMORYSTATUSEX statex;
134     statex.dwLength = sizeof (statex);
135     GlobalMemoryStatusEx (&statex);
136 persson 1888 dmsg(2, ("There are %*I64d total Kbytes of physical memory.\n",
137 senoner 1502 8, statex.ullTotalPhys));
138 persson 1888 dmsg(2, ("There are %*I64d free Kbytes of physical memory.\n",
139 senoner 1502 8, statex.ullAvailPhys));
140     physical_memory = statex.ullTotalPhys;
141    
142     HANDLE hProcess = GetCurrentProcess();
143    
144     unsigned long MinimumWorkingSetSize, MaximumWorkingSetSize;
145     unsigned long DefaultMinimumWorkingSetSize, DefaultMaximumWorkingSetSize;
146     unsigned long RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize;
147     int res;
148    
149     res = GetProcessWorkingSetSize(hProcess, &DefaultMinimumWorkingSetSize, &DefaultMaximumWorkingSetSize);
150    
151     RequestedMaximumWorkingSetSize = physical_memory - 2*1024*1024;
152     RequestedMinimumWorkingSetSize = RequestedMaximumWorkingSetSize;
153    
154     for(;;) {
155     dmsg(2,("TRYING VALUES RequestedMinimumWorkingSetSize=%d, RequestedMaximumWorkingSetSize=%d\n", RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize));
156     res = SetProcessWorkingSetSize(hProcess, RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize);
157     dmsg(2,("AFTER SET: res = %d RequestedMinimumWorkingSetSize=%d, RequestedMaximumWorkingSetSize=%d\n", res,RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize));
158    
159     res = GetProcessWorkingSetSize(hProcess, &MinimumWorkingSetSize, &MaximumWorkingSetSize);
160     dmsg(2,("AFTER GET: res = %d MinimumWorkingSetSize=%d, MaximumWorkingSetSize=%d\n", res,MinimumWorkingSetSize, MaximumWorkingSetSize));
161    
162     if( RequestedMinimumWorkingSetSize == MinimumWorkingSetSize ) {
163     dmsg(2,("RequestedMinimumWorkingSetSize == MinimumWorkingSetSize. OK !\n"));
164     break;
165     }
166    
167     RequestedMinimumWorkingSetSize -= 10*1024*1024;
168     if(RequestedMinimumWorkingSetSize < DefaultMinimumWorkingSetSize) break;
169     }
170    
171 persson 1888 dmsg(2,("AFTER GetProcessWorkingSetSize: res = %d MinimumWorkingSetSize=%d, MaximumWorkingSetSize=%d\n", res,MinimumWorkingSetSize, MaximumWorkingSetSize));
172     #endif
173 schoenebeck 1830 #endif // WIN32
174 senoner 1502
175 schoenebeck 579 if (tune) {
176 persson 425 // detect and print system / CPU specific features
177     Features::detect();
178 schoenebeck 579 dmsg(1,("Detected features: %s\n", Features::featuresAsString().c_str()));
179     // prevent slow denormal FPU modes
180     Features::enableDenormalsAreZeroMode();
181 senkov 325 }
182 schoenebeck 319
183 schoenebeck 1830 dmsg(1,("Automatic Stacktrace: %s\n", (bShowStackTrace) ? "On" : "Off"));
184    
185 schoenebeck 53 // create LinuxSampler instance
186 schoenebeck 123 dmsg(1,("Creating Sampler..."));
187 schoenebeck 53 pSampler = new Sampler;
188 schoenebeck 123 dmsg(1,("OK\n"));
189 schoenebeck 53
190 schoenebeck 900 dmsg(1,("Registered sampler engines: %s\n", EngineFactory::AvailableEngineTypesAsString().c_str()));
191 schoenebeck 207 dmsg(1,("Registered MIDI input drivers: %s\n", MidiInputDeviceFactory::AvailableDriversAsString().c_str()));
192 schoenebeck 123 dmsg(1,("Registered audio output drivers: %s\n", AudioOutputDeviceFactory::AvailableDriversAsString().c_str()));
193 schoenebeck 1212 dmsg(1,("Registered instrument editors: %s\n", InstrumentEditorFactory::AvailableEditorsAsString().c_str()));
194 schoenebeck 2124 dmsg(1,("Registered internal effect systems: %s\n", EffectFactory::AvailableEffectSystemsAsString().c_str()));
195     dmsg(1,("Registered internal effects: %d\n", EffectFactory::AvailableEffectsCount()));
196 schoenebeck 123
197 schoenebeck 53 // start LSCP network server
198 senkov 667 struct in_addr addr;
199     addr.s_addr = lscp_addr;
200     dmsg(1,("Starting LSCP network server (%s:%d)...", inet_ntoa(addr), ntohs(lscp_port)));
201     pLSCPServer = new LSCPServer(pSampler, lscp_addr, lscp_port);
202 schoenebeck 53 pLSCPServer->StartThread();
203 schoenebeck 211 pLSCPServer->WaitUntilInitialized();
204 schoenebeck 12 dmsg(1,("OK\n"));
205 schoenebeck 9
206 senkov 325 if (profile)
207     {
208 persson 425 dmsg(1,("Calibrating profiler..."));
209 iliev 1161 LinuxSampler::gig::Profiler::Calibrate();
210     LinuxSampler::gig::Profiler::Reset();
211     LinuxSampler::gig::Profiler::enable();
212 persson 425 dmsg(1,("OK\n"));
213 senkov 325 }
214    
215 schoenebeck 563 printf("LinuxSampler initialization completed. :-)\n\n");
216 iliev 2306
217     if (ExecAfterInit != "") {
218     printf("Executing command: %s\n\n", ExecAfterInit.c_str());
219     if (system(ExecAfterInit.c_str()) == -1) {
220     std::cerr << "Failed to execute the command" << std::endl;
221     }
222     }
223 schoenebeck 9
224 schoenebeck 2473 //TODO: (hopefully) just a temporary nasty hack for launching gigedit on the main thread on Mac (see comments in gigedit.cpp for details)
225     #if defined(__APPLE__)
226     g_mainThreadCallbackSupported = true;
227     #endif
228    
229 persson 1534 while (atomic_read(&running)) {
230 schoenebeck 420 if (bPrintStatistics) {
231 persson 840 const std::set<Engine*>& engines = EngineFactory::EngineInstances();
232 schoenebeck 420 std::set<Engine*>::iterator itEngine = engines.begin();
233     for (int i = 0; itEngine != engines.end(); itEngine++, i++) {
234     Engine* pEngine = *itEngine;
235     printf("Engine %d) Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d)\n", i,
236     pEngine->VoiceCount(), pEngine->VoiceCountMax(),
237     pEngine->DiskStreamCount(), pEngine->DiskStreamCountMax()
238     );
239     fflush(stdout);
240     }
241     }
242 persson 425
243 persson 1534 sleep(1);
244     if (profile)
245     {
246     unsigned int samplingFreq = 48000; //FIXME: hardcoded for now
247     unsigned int bv = LinuxSampler::gig::Profiler::GetBogoVoices(samplingFreq);
248     if (bv != 0)
249     {
250     printf(" BogoVoices: %i \r", bv);
251     fflush(stdout);
252     }
253     }
254 persson 425
255 persson 1765 pSampler->fireStatistics();
256 schoenebeck 2473
257     //TODO: (hopefully) just a temporary nasty hack for launching gigedit on the main thread on Mac (see comments in gigedit.cpp for details)
258     #if defined(__APPLE__)
259     if (g_fireMainThreadCallback && g_mainThreadCallback) {
260     void (*fn)(void* info) = g_mainThreadCallback;
261     void* info = g_mainThreadCallbackInfo;
262     g_mainThreadCallbackInfo = NULL;
263     g_mainThreadCallback = NULL;
264     g_fireMainThreadCallback = false;
265     printf("Received main thread callback, calling now ...\n"); fflush(stdout);
266     (*fn)(info);
267     printf("Main thread callback executed.\n"); fflush(stdout);
268     }
269     #endif
270 senoner 10 }
271 schoenebeck 2473 //#endif
272 persson 1534 if (pLSCPServer) pLSCPServer->StopThread();
273     // the delete order here is important: the Sampler
274     // destructor sends notifications to the lscpserver
275     if (pSampler) delete pSampler;
276     if (pLSCPServer) delete pLSCPServer;
277     printf("LinuxSampler stopped due to SIGINT.\n");
278 schoenebeck 9 return EXIT_SUCCESS;
279     }
280    
281 schoenebeck 271 void signal_handler(int iSignal) {
282     switch (iSignal) {
283 persson 1534 case SIGINT:
284     atomic_set(&running, 0);
285 schoenebeck 271 return;
286 senoner 1502 #if defined(WIN32)
287     // FIXME: under WIN32 we ignore the signals below due to the missing sigaction call
288     #else
289 schoenebeck 271 case SIGSEGV:
290     std::cerr << ">>> FATAL ERROR: Segmentation fault (SIGSEGV) occured! <<<\n" << std::flush;
291     break;
292     case SIGBUS:
293     std::cerr << ">>> FATAL ERROR: Access to undefined portion of a memory object (SIGBUS) occured! <<<\n" << std::flush;
294     break;
295     case SIGILL:
296     std::cerr << ">>> FATAL ERROR: Illegal instruction (SIGILL) occured! <<<\n" << std::flush;
297     break;
298     case SIGFPE:
299     std::cerr << ">>> FATAL ERROR: Erroneous arithmetic operation (SIGFPE) occured! <<<\n" << std::flush;
300     break;
301     case SIGUSR1:
302     std::cerr << ">>> User defined signal 1 (SIGUSR1) received <<<\n" << std::flush;
303     break;
304     case SIGUSR2:
305     std::cerr << ">>> User defined signal 2 (SIGUSR2) received <<<\n" << std::flush;
306     break;
307 senoner 1502 #endif
308 schoenebeck 271 default: { // this should never happen, as we register for the signals we want
309     std::cerr << ">>> FATAL ERROR: Unknown signal received! <<<\n" << std::flush;
310     break;
311     }
312 schoenebeck 9 }
313 schoenebeck 271 signal(iSignal, SIG_DFL); // Reinstall default handler to prevent race conditions
314 schoenebeck 1830 if (bShowStackTrace) {
315     std::cerr << "Showing stack trace...\n" << std::flush;
316     StackTrace();
317     sleep(2);
318     }
319 schoenebeck 271 std::cerr << "Killing LinuxSampler...\n" << std::flush;
320     kill_app(); // Use abort() if we want to generate a core dump.
321 schoenebeck 9 }
322    
323 schoenebeck 271 void kill_app() {
324 senoner 1502 #if defined(WIN32)
325     // FIXME: do we need to do anything at this point under WIN32 ? is exit(0) ok ?
326     exit(0);
327     #else
328 wylder 816 kill(main_pid, SIGKILL);
329 senoner 1502 #endif
330 schoenebeck 271 }
331    
332 senkov 325 void parse_options(int argc, char **argv) {
333 schoenebeck 9 int res;
334     int option_index = 0;
335     static struct option long_options[] =
336     {
337     {"help",0,0,0},
338 senkov 325 {"version",0,0,0},
339     {"profile",0,0,0},
340     {"no-tune",0,0,0},
341 schoenebeck 420 {"statistics",0,0,0},
342 iliev 1208 {"instruments-db-location",1,0,0},
343 iliev 1187 {"create-instruments-db",1,0,0},
344 senkov 667 {"lscp-addr",1,0,0},
345     {"lscp-port",1,0,0},
346 schoenebeck 1830 {"stacktrace",0,0,0},
347 iliev 2306 {"exec-after-init",1,0,0},
348 schoenebeck 9 {0,0,0,0}
349     };
350    
351     while (true) {
352 schoenebeck 361 /*
353     Stephane Letz : letz@grame.fr
354     getopt_long_only does not exist on OSX : replaced by getopt_long for now.
355     */
356     res = getopt_long(argc, argv, "", long_options, &option_index);
357 schoenebeck 9 if(res == -1) break;
358     if (res == 0) {
359     switch(option_index) {
360 senkov 325 case 0: // --help
361     printf("usage: linuxsampler [OPTIONS]\n\n");
362 iliev 1208 printf("--help prints this message\n");
363     printf("--version prints version information\n");
364     printf("--profile profile synthesis algorithms\n");
365     printf("--no-tune disable assembly optimization\n");
366     printf("--statistics periodically prints statistics\n");
367     printf("--lscp-addr set LSCP address (default: any)\n");
368     printf("--lscp-port set LSCP port (default: 8888)\n");
369     printf("--create-instruments-db creates an instruments DB\n");
370     printf("--instruments-db-location specifies the instruments DB file\n");
371 schoenebeck 1830 printf("--stacktrace automatically shows stacktrace if crashes\n");
372     printf(" (broken on most systems at the moment)\n");
373 iliev 2306 printf("--exec-after-init executes a command after initialization\n");
374 senkov 325 exit(EXIT_SUCCESS);
375 schoenebeck 9 break;
376 senkov 325 case 1: // --version
377 schoenebeck 328 printf("LinuxSampler %s\n", VERSION);
378     exit(EXIT_SUCCESS);
379 schoenebeck 9 break;
380 senkov 325 case 2: // --profile
381 persson 425 profile = true;
382 schoenebeck 2047 //FIXME: profiling code is currently broken!
383     std::cerr << "Option '--profile' is currently not supported, since the profiling code is currently broken!" << std::endl;
384     exit(EXIT_FAILURE);
385 schoenebeck 20 break;
386 senkov 325 case 3: // --no-tune
387 persson 425 tune = false;
388 schoenebeck 9 break;
389 schoenebeck 420 case 4: // --statistics
390     bPrintStatistics = true;
391     break;
392 iliev 1208 case 5: // --instruments-db-location
393 iliev 1187 #if HAVE_SQLITE3
394     try {
395     if (optarg) {
396 iliev 1208 struct stat statBuf;
397     int res = stat(optarg, &statBuf);
398    
399     if (res) {
400     std::stringstream ss;
401 schoenebeck 1364 ss << "Failed to stat `" << optarg << "`: " << strerror(errno);
402 iliev 1208 throw Exception(ss.str());
403     }
404    
405     if (!S_ISREG(statBuf.st_mode)) {
406     std::stringstream ss;
407     ss << "`" << optarg << "` is not a regular file";
408     throw Exception(ss.str());
409     }
410    
411     InstrumentsDb::GetInstrumentsDb()->SetDbFile(String(optarg));
412     }
413     } catch(Exception e) {
414 schoenebeck 1364 std::cerr << "Could not open instruments DB file: "
415     << e.Message() << std::endl;
416     exit(EXIT_FAILURE);
417 iliev 1208 }
418 schoenebeck 1364 break;
419 iliev 1208 #else
420     std::cerr << "LinuxSampler was not build with ";
421 schoenebeck 1364 std::cerr << "instruments database support!\n";
422     exit(EXIT_FAILURE);
423     break;
424     #endif
425 iliev 1208 case 6: // --create-instruments-db
426     #if HAVE_SQLITE3
427     try {
428     if (optarg) {
429 iliev 1187 std::cout << "Creating instruments database..." << std::endl;
430     InstrumentsDb::CreateInstrumentsDb(String(optarg));
431     std::cout << "Done" << std::endl;
432     }
433     } catch(Exception e) {
434     std::cerr << e.Message() << std::endl;
435     exit(EXIT_FAILURE);
436     return;
437     }
438    
439     exit(EXIT_SUCCESS);
440     return;
441     #else
442     std::cerr << "Failed to create the database. LinuxSampler was ";
443 schoenebeck 1364 std::cerr << "not build with instruments database support!\n";
444 iliev 1187 exit(EXIT_FAILURE);
445     return;
446 schoenebeck 1364 #endif
447 schoenebeck 1830 case 7: { // --lscp-addr
448 iliev 1187 struct in_addr addr;
449     if (inet_aton(optarg, &addr) == 0)
450     printf("WARNING: Failed to parse lscp-addr argument, ignoring!\n");
451     else
452     lscp_addr = addr.s_addr;
453 senkov 667 break;
454 schoenebeck 1830 }
455     case 8: {// --lscp-port
456 iliev 1187 long unsigned int port = 0;
457 persson 2837 if ((sscanf(optarg, "%lu", &port) != 1) || (port == 0) || (port > 65535))
458 iliev 1187 printf("WARNING: Failed to parse lscp-port argument, ignoring!\n");
459     else
460     lscp_port = htons(port);
461 senkov 667 break;
462 schoenebeck 1830 }
463     case 9: // --stacktrace
464     bShowStackTrace = true;
465     break;
466 iliev 2306 case 10: // --exec-after-init
467     ExecAfterInit = optarg;
468     break;
469 schoenebeck 9 }
470     }
471     }
472 senkov 325 }

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