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

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Revision 3058 - (show annotations) (download)
Fri Dec 16 13:08:00 2016 UTC (4 years, 4 months ago) by schoenebeck
File size: 19568 byte(s)
- Fixed compile error on Windows.

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 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;
74 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);
81 void signal_handler(int signal);
82 void kill_app();
83 static atomic_t running = ATOMIC_INIT(1);
84
85 int main(int argc, char **argv) {
86
87 lscp_addr = htonl(LSCP_ADDR);
88 lscp_port = htons(LSCP_PORT);
89
90 #if !defined(WIN32)
91 main_pid = getpid();
92 #endif
93
94 // parse and assign command line options
95 parse_options(argc, argv);
96
97 // setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)
98 signal(SIGINT, signal_handler);
99
100 // initialize the stack trace mechanism with our binary file
101 // (if requested by command line option)
102 if (bShowStackTrace) {
103 #if defined(WIN32)
104 // FIXME: sigaction() not supported on WIN32, we ignore it for now
105 #elif AC_APPLE_UNIVERSAL_BUILD
106 // not used for Xcode
107 #else
108 StackTraceInit(argv[0], -1);
109 // register signal handler for all unusual signals
110 // (we will print the stack trace and exit)
111 struct sigaction sact;
112 sigemptyset(&sact.sa_mask);
113 sact.sa_flags = 0;
114 sact.sa_handler = signal_handler;
115 sigaction(SIGSEGV, &sact, NULL);
116 sigaction(SIGBUS, &sact, NULL);
117 sigaction(SIGILL, &sact, NULL);
118 sigaction(SIGFPE, &sact, NULL);
119 sigaction(SIGUSR1, &sact, NULL);
120 sigaction(SIGUSR2, &sact, NULL);
121 #endif
122 }
123
124 dmsg(1,("LinuxSampler %s\n", VERSION));
125 dmsg(1,("Copyright (C) 2003,2004 by Benno Senoner and Christian Schoenebeck\n"));
126 dmsg(1,("Copyright (C) 2005-2016 Christian Schoenebeck\n"));
127 dmsg(1,("Binary built: " __DATE__ "\n"))
128
129 #if defined(WIN32)
130 #if 0
131 // some WIN32 memory info code which tries to determine the maximum lockable amount of memory (for debug purposes)
132 SYSTEM_INFO siSysInfo;
133 long physical_memory;
134 GetSystemInfo(&siSysInfo);
135 dmsg(2,("page size=%d\n", siSysInfo.dwPageSize));
136
137 MEMORYSTATUSEX statex;
138 statex.dwLength = sizeof (statex);
139 GlobalMemoryStatusEx (&statex);
140 dmsg(2, ("There are %*I64d total Kbytes of physical memory.\n",
141 8, statex.ullTotalPhys));
142 dmsg(2, ("There are %*I64d free Kbytes of physical memory.\n",
143 8, statex.ullAvailPhys));
144 physical_memory = statex.ullTotalPhys;
145
146 HANDLE hProcess = GetCurrentProcess();
147
148 unsigned long MinimumWorkingSetSize, MaximumWorkingSetSize;
149 unsigned long DefaultMinimumWorkingSetSize, DefaultMaximumWorkingSetSize;
150 unsigned long RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize;
151 int res;
152
153 res = GetProcessWorkingSetSize(hProcess, &DefaultMinimumWorkingSetSize, &DefaultMaximumWorkingSetSize);
154
155 RequestedMaximumWorkingSetSize = physical_memory - 2*1024*1024;
156 RequestedMinimumWorkingSetSize = RequestedMaximumWorkingSetSize;
157
158 for(;;) {
159 dmsg(2,("TRYING VALUES RequestedMinimumWorkingSetSize=%d, RequestedMaximumWorkingSetSize=%d\n", RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize));
160 res = SetProcessWorkingSetSize(hProcess, RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize);
161 dmsg(2,("AFTER SET: res = %d RequestedMinimumWorkingSetSize=%d, RequestedMaximumWorkingSetSize=%d\n", res,RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize));
162
163 res = GetProcessWorkingSetSize(hProcess, &MinimumWorkingSetSize, &MaximumWorkingSetSize);
164 dmsg(2,("AFTER GET: res = %d MinimumWorkingSetSize=%d, MaximumWorkingSetSize=%d\n", res,MinimumWorkingSetSize, MaximumWorkingSetSize));
165
166 if( RequestedMinimumWorkingSetSize == MinimumWorkingSetSize ) {
167 dmsg(2,("RequestedMinimumWorkingSetSize == MinimumWorkingSetSize. OK !\n"));
168 break;
169 }
170
171 RequestedMinimumWorkingSetSize -= 10*1024*1024;
172 if(RequestedMinimumWorkingSetSize < DefaultMinimumWorkingSetSize) break;
173 }
174
175 dmsg(2,("AFTER GetProcessWorkingSetSize: res = %d MinimumWorkingSetSize=%d, MaximumWorkingSetSize=%d\n", res,MinimumWorkingSetSize, MaximumWorkingSetSize));
176 #endif
177 #endif // WIN32
178
179 if (tune) {
180 // detect and print system / CPU specific features
181 Features::detect();
182 dmsg(1,("Detected features: %s\n", Features::featuresAsString().c_str()));
183 // prevent slow denormal FPU modes
184 Features::enableDenormalsAreZeroMode();
185 }
186
187 dmsg(1,("Automatic Stacktrace: %s\n", (bShowStackTrace) ? "On" : "Off"));
188
189 // create LinuxSampler instance
190 dmsg(1,("Creating Sampler..."));
191 pSampler = new Sampler;
192 dmsg(1,("OK\n"));
193
194 dmsg(1,("Registered sampler engines: %s\n", EngineFactory::AvailableEngineTypesAsString().c_str()));
195 dmsg(1,("Registered MIDI input drivers: %s\n", MidiInputDeviceFactory::AvailableDriversAsString().c_str()));
196 dmsg(1,("Registered audio output drivers: %s\n", AudioOutputDeviceFactory::AvailableDriversAsString().c_str()));
197 dmsg(1,("Registered instrument editors: %s\n", InstrumentEditorFactory::AvailableEditorsAsString().c_str()));
198 dmsg(1,("Registered internal effect systems: %s\n", EffectFactory::AvailableEffectSystemsAsString().c_str()));
199 dmsg(1,("Registered internal effects: %d\n", EffectFactory::AvailableEffectsCount()));
200
201 // start LSCP network server
202 struct in_addr addr;
203 addr.s_addr = (in_addr_t)lscp_addr;
204 dmsg(1,("Starting LSCP network server (%s:%d)...", inet_ntoa(addr), ntohs(lscp_port)));
205 pLSCPServer = new LSCPServer(pSampler, lscp_addr, lscp_port);
206 pLSCPServer->StartThread();
207 pLSCPServer->WaitUntilInitialized();
208 dmsg(1,("OK\n"));
209
210 if (profile)
211 {
212 dmsg(1,("Calibrating profiler..."));
213 LinuxSampler::gig::Profiler::Calibrate();
214 LinuxSampler::gig::Profiler::Reset();
215 LinuxSampler::gig::Profiler::enable();
216 dmsg(1,("OK\n"));
217 }
218
219 printf("LinuxSampler initialization completed. :-)\n\n");
220
221 if (ExecAfterInit != "") {
222 printf("Executing command: %s\n\n", ExecAfterInit.c_str());
223 if (system(ExecAfterInit.c_str()) == -1) {
224 std::cerr << "Failed to execute the command" << std::endl;
225 }
226 }
227
228 //TODO: (hopefully) just a temporary nasty hack for launching gigedit on the main thread on Mac (see comments in gigedit.cpp for details)
229 #if defined(__APPLE__)
230 g_mainThreadCallbackSupported = true;
231 #endif
232
233 while (atomic_read(&running)) {
234 if (bPrintStatistics) {
235 const std::set<Engine*>& engines = EngineFactory::EngineInstances();
236 std::set<Engine*>::iterator itEngine = engines.begin();
237 for (int i = 0; itEngine != engines.end(); itEngine++, i++) {
238 Engine* pEngine = *itEngine;
239 printf("Engine %d) Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d)\n", i,
240 pEngine->VoiceCount(), pEngine->VoiceCountMax(),
241 pEngine->DiskStreamCount(), pEngine->DiskStreamCountMax()
242 );
243 fflush(stdout);
244 }
245 }
246
247 sleep(1);
248 if (profile)
249 {
250 unsigned int samplingFreq = 48000; //FIXME: hardcoded for now
251 unsigned int bv = LinuxSampler::gig::Profiler::GetBogoVoices(samplingFreq);
252 if (bv != 0)
253 {
254 printf(" BogoVoices: %i \r", bv);
255 fflush(stdout);
256 }
257 }
258
259 pSampler->fireStatistics();
260
261 //TODO: (hopefully) just a temporary nasty hack for launching gigedit on the main thread on Mac (see comments in gigedit.cpp for details)
262 #if defined(__APPLE__)
263 if (g_fireMainThreadCallback && g_mainThreadCallback) {
264 void (*fn)(void* info) = g_mainThreadCallback;
265 void* info = g_mainThreadCallbackInfo;
266 g_mainThreadCallbackInfo = NULL;
267 g_mainThreadCallback = NULL;
268 g_fireMainThreadCallback = false;
269 printf("Received main thread callback, calling now ...\n"); fflush(stdout);
270 (*fn)(info);
271 printf("Main thread callback executed.\n"); fflush(stdout);
272 }
273 #endif
274 }
275 //#endif
276 if (pLSCPServer) pLSCPServer->StopThread();
277 // the delete order here is important: the Sampler
278 // destructor sends notifications to the lscpserver
279 if (pSampler) delete pSampler;
280 if (pLSCPServer) delete pLSCPServer;
281 printf("LinuxSampler stopped due to SIGINT.\n");
282 return EXIT_SUCCESS;
283 }
284
285 void signal_handler(int iSignal) {
286 switch (iSignal) {
287 case SIGINT:
288 atomic_set(&running, 0);
289 return;
290 #if defined(WIN32)
291 // FIXME: under WIN32 we ignore the signals below due to the missing sigaction call
292 #else
293 case SIGSEGV:
294 std::cerr << ">>> FATAL ERROR: Segmentation fault (SIGSEGV) occured! <<<\n" << std::flush;
295 break;
296 case SIGBUS:
297 std::cerr << ">>> FATAL ERROR: Access to undefined portion of a memory object (SIGBUS) occured! <<<\n" << std::flush;
298 break;
299 case SIGILL:
300 std::cerr << ">>> FATAL ERROR: Illegal instruction (SIGILL) occured! <<<\n" << std::flush;
301 break;
302 case SIGFPE:
303 std::cerr << ">>> FATAL ERROR: Erroneous arithmetic operation (SIGFPE) occured! <<<\n" << std::flush;
304 break;
305 case SIGUSR1:
306 std::cerr << ">>> User defined signal 1 (SIGUSR1) received <<<\n" << std::flush;
307 break;
308 case SIGUSR2:
309 std::cerr << ">>> User defined signal 2 (SIGUSR2) received <<<\n" << std::flush;
310 break;
311 #endif
312 default: { // this should never happen, as we register for the signals we want
313 std::cerr << ">>> FATAL ERROR: Unknown signal received! <<<\n" << std::flush;
314 break;
315 }
316 }
317 signal(iSignal, SIG_DFL); // Reinstall default handler to prevent race conditions
318 if (bShowStackTrace) {
319 std::cerr << "Showing stack trace...\n" << std::flush;
320 #if !AC_APPLE_UNIVERSAL_BUILD
321 StackTrace();
322 #endif
323 sleep(2);
324 }
325 std::cerr << "Killing LinuxSampler...\n" << std::flush;
326 kill_app(); // Use abort() if we want to generate a core dump.
327 }
328
329 void kill_app() {
330 #if defined(WIN32)
331 // FIXME: do we need to do anything at this point under WIN32 ? is exit(0) ok ?
332 exit(0);
333 #else
334 kill(main_pid, SIGKILL);
335 #endif
336 }
337
338 void parse_options(int argc, char **argv) {
339 int res;
340 int option_index = 0;
341 static struct option long_options[] =
342 {
343 {"help",0,0,0},
344 {"version",0,0,0},
345 {"profile",0,0,0},
346 {"no-tune",0,0,0},
347 {"statistics",0,0,0},
348 {"instruments-db-location",1,0,0},
349 {"create-instruments-db",1,0,0},
350 {"lscp-addr",1,0,0},
351 {"lscp-port",1,0,0},
352 {"stacktrace",0,0,0},
353 {"exec-after-init",1,0,0},
354 {0,0,0,0}
355 };
356
357 while (true) {
358 /*
359 Stephane Letz : letz@grame.fr
360 getopt_long_only does not exist on OSX : replaced by getopt_long for now.
361 */
362 res = getopt_long(argc, argv, "", long_options, &option_index);
363 if(res == -1) break;
364 if (res == 0) {
365 switch(option_index) {
366 case 0: // --help
367 printf("usage: linuxsampler [OPTIONS]\n\n");
368 printf("--help prints this message\n");
369 printf("--version prints version information\n");
370 printf("--profile profile synthesis algorithms\n");
371 printf("--no-tune disable assembly optimization\n");
372 printf("--statistics periodically prints statistics\n");
373 printf("--lscp-addr set LSCP address (default: any)\n");
374 printf("--lscp-port set LSCP port (default: 8888)\n");
375 printf("--create-instruments-db creates an instruments DB\n");
376 printf("--instruments-db-location specifies the instruments DB file\n");
377 printf("--stacktrace automatically shows stacktrace if crashes\n");
378 printf(" (broken on most systems at the moment)\n");
379 printf("--exec-after-init executes a command after initialization\n");
380 exit(EXIT_SUCCESS);
381 break;
382 case 1: // --version
383 printf("LinuxSampler %s\n", VERSION);
384 exit(EXIT_SUCCESS);
385 break;
386 case 2: // --profile
387 profile = true;
388 //FIXME: profiling code is currently broken!
389 std::cerr << "Option '--profile' is currently not supported, since the profiling code is currently broken!" << std::endl;
390 exit(EXIT_FAILURE);
391 break;
392 case 3: // --no-tune
393 tune = false;
394 break;
395 case 4: // --statistics
396 bPrintStatistics = true;
397 break;
398 case 5: // --instruments-db-location
399 #if HAVE_SQLITE3
400 try {
401 if (optarg) {
402 struct stat statBuf;
403 int res = stat(optarg, &statBuf);
404
405 if (res) {
406 std::stringstream ss;
407 ss << "Failed to stat `" << optarg << "`: " << strerror(errno);
408 throw Exception(ss.str());
409 }
410
411 if (!S_ISREG(statBuf.st_mode)) {
412 std::stringstream ss;
413 ss << "`" << optarg << "` is not a regular file";
414 throw Exception(ss.str());
415 }
416
417 InstrumentsDb::GetInstrumentsDb()->SetDbFile(String(optarg));
418 }
419 } catch(Exception e) {
420 std::cerr << "Could not open instruments DB file: "
421 << e.Message() << std::endl;
422 exit(EXIT_FAILURE);
423 }
424 break;
425 #else
426 std::cerr << "LinuxSampler was not build with ";
427 std::cerr << "instruments database support!\n";
428 exit(EXIT_FAILURE);
429 break;
430 #endif
431 case 6: // --create-instruments-db
432 #if HAVE_SQLITE3
433 try {
434 if (optarg) {
435 std::cout << "Creating instruments database..." << std::endl;
436 InstrumentsDb::CreateInstrumentsDb(String(optarg));
437 std::cout << "Done" << std::endl;
438 }
439 } catch(Exception e) {
440 std::cerr << e.Message() << std::endl;
441 exit(EXIT_FAILURE);
442 return;
443 }
444
445 exit(EXIT_SUCCESS);
446 return;
447 #else
448 std::cerr << "Failed to create the database. LinuxSampler was ";
449 std::cerr << "not build with instruments database support!\n";
450 exit(EXIT_FAILURE);
451 return;
452 #endif
453 case 7: { // --lscp-addr
454 struct in_addr addr;
455 if (inet_aton(optarg, &addr) == 0)
456 printf("WARNING: Failed to parse lscp-addr argument, ignoring!\n");
457 else
458 lscp_addr = addr.s_addr;
459 break;
460 }
461 case 8: {// --lscp-port
462 long unsigned int port = 0;
463 if ((sscanf(optarg, "%lu", &port) != 1) || (port == 0) || (port > 65535))
464 printf("WARNING: Failed to parse lscp-port argument, ignoring!\n");
465 else
466 lscp_port = htons(port);
467 break;
468 }
469 case 9: // --stacktrace
470 bShowStackTrace = true;
471 break;
472 case 10: // --exec-after-init
473 ExecAfterInit = optarg;
474 break;
475 }
476 }
477 }
478 }

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