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

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Revision 2856 - (show annotations) (download)
Wed Jan 6 10:02:40 2016 UTC (22 months, 2 weeks ago) by persson
File size: 19356 byte(s)
* sfz engine: added support for <global>, <master> and #define (patch
  by Alby M)

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

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