trunk/src/linuxsampler.cpp

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2003-2004 by Benno Senoner and Christian Schoenebeck    *
 *   Copyright (C) 2005-2008 Christian Schoenebeck                         *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the Free Software           *
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
 *   MA  02111-1307  USA                                                   *
 ***************************************************************************/

#include <getopt.h>
#include <signal.h>

#if defined(WIN32)
// require at least Windows 2000 for the GlobalMemoryStatusEx() call
#define _WIN32_WINNT 0x0500
#endif

#include "Sampler.h"
#include "common/global_private.h"
#include "engines/EngineFactory.h"
#include "plugins/InstrumentEditorFactory.h"
#include "drivers/midi/MidiInputDeviceFactory.h"
#include "drivers/audio/AudioOutputDeviceFactory.h"
#include "engines/gig/Profiler.h"
#include "network/lscpserver.h"
#include "common/stacktrace.h"
#include "common/Features.h"
#include "common/atomic.h"

using namespace LinuxSampler;

Sampler*    pSampler    = NULL;
LSCPServer* pLSCPServer = NULL;
#if defined(WIN32)
// inet_aton seems missing under WIN32
#ifndef INADDR_NONE
#define INADDR_NONE 0xffffffff
#endif

int inet_aton(const char *cp, struct in_addr *addr)
{
    addr->s_addr = inet_addr(cp);
    return (addr->s_addr == INADDR_NONE) ? 0 : 1;
}

#else
pid_t       main_pid;
#endif
bool bPrintStatistics = false;
bool profile = false;
bool tune = true;
unsigned long int lscp_addr;
unsigned short int lscp_port;

void parse_options(int argc, char **argv);
void signal_handler(int signal);
void kill_app();
static atomic_t running = ATOMIC_INIT(1);

int main(int argc, char **argv) {

    // initialize the stack trace mechanism with our binary file
    StackTraceInit(argv[0], -1);

    #if defined(WIN32)
    // some WIN32 memory info code which tries to determine the maximum lockable amount of memory (for debug purposes)
    SYSTEM_INFO siSysInfo;
    long physical_memory;
    GetSystemInfo(&siSysInfo);
    dmsg(1,("page size=%d\n", siSysInfo.dwPageSize));

    MEMORYSTATUSEX statex;
        statex.dwLength = sizeof (statex);
    GlobalMemoryStatusEx (&statex);
    dmsg(1, ("There are %*I64d total Kbytes of physical memory.\n",
          8, statex.ullTotalPhys));
    dmsg(1, ("There are %*I64d free Kbytes of physical memory.\n",
          8, statex.ullAvailPhys));
    physical_memory = statex.ullTotalPhys;

    HANDLE hProcess = GetCurrentProcess();

    unsigned long MinimumWorkingSetSize, MaximumWorkingSetSize;
    unsigned long DefaultMinimumWorkingSetSize, DefaultMaximumWorkingSetSize;
    unsigned long RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize;
    int res;

    res = GetProcessWorkingSetSize(hProcess, &DefaultMinimumWorkingSetSize, &DefaultMaximumWorkingSetSize);

    RequestedMaximumWorkingSetSize = physical_memory - 2*1024*1024;
    RequestedMinimumWorkingSetSize = RequestedMaximumWorkingSetSize;

    for(;;) {
        dmsg(2,("TRYING VALUES  RequestedMinimumWorkingSetSize=%d, RequestedMaximumWorkingSetSize=%d\n", RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize));
        res = SetProcessWorkingSetSize(hProcess, RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize);
        dmsg(2,("AFTER SET: res = %d  RequestedMinimumWorkingSetSize=%d, RequestedMaximumWorkingSetSize=%d\n", res,RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize));

        res = GetProcessWorkingSetSize(hProcess, &MinimumWorkingSetSize, &MaximumWorkingSetSize);
        dmsg(2,("AFTER GET: res = %d  MinimumWorkingSetSize=%d, MaximumWorkingSetSize=%d\n", res,MinimumWorkingSetSize, MaximumWorkingSetSize));

        if( RequestedMinimumWorkingSetSize == MinimumWorkingSetSize ) {
            dmsg(2,("RequestedMinimumWorkingSetSize == MinimumWorkingSetSize. OK !\n"));
            break;
        }

        RequestedMinimumWorkingSetSize -=  10*1024*1024;
        if(RequestedMinimumWorkingSetSize < DefaultMinimumWorkingSetSize) break;
    }

    dmsg(1,("AFTER GetProcessWorkingSetSize: res = %d  MinimumWorkingSetSize=%d, MaximumWorkingSetSize=%d\n", res,MinimumWorkingSetSize, MaximumWorkingSetSize));
    #endif

    #if !defined(WIN32)
    main_pid = getpid();
    #endif

    // setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)
    signal(SIGINT, signal_handler);

    #if defined(WIN32)
    // FIXME: sigaction() not supported on WIN32, we ignore it for now
    #else
    // register signal handler for all unusual signals
    // (we will print the stack trace and exit)
    struct sigaction sact;
    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);
    #endif

    lscp_addr = htonl(LSCP_ADDR);
    lscp_port = htons(LSCP_PORT);

    // parse and assign command line options
    parse_options(argc, argv);

    dmsg(1,("LinuxSampler %s\n", VERSION));
    dmsg(1,("Copyright (C) 2003,2004 by Benno Senoner and Christian Schoenebeck\n"));
    dmsg(1,("Copyright (C) 2005-2007 Christian Schoenebeck\n"));

    if (tune) {
        // detect and print system / CPU specific features
        Features::detect();
        dmsg(1,("Detected features: %s\n", Features::featuresAsString().c_str()));
        // prevent slow denormal FPU modes
        Features::enableDenormalsAreZeroMode();
    }

    // create LinuxSampler instance
    dmsg(1,("Creating Sampler..."));
    pSampler = new Sampler;
    dmsg(1,("OK\n"));

    dmsg(1,("Registered sampler engines: %s\n", EngineFactory::AvailableEngineTypesAsString().c_str()));
    dmsg(1,("Registered MIDI input drivers: %s\n", MidiInputDeviceFactory::AvailableDriversAsString().c_str()));
    dmsg(1,("Registered audio output drivers: %s\n", AudioOutputDeviceFactory::AvailableDriversAsString().c_str()));
    dmsg(1,("Registered instrument editors: %s\n", InstrumentEditorFactory::AvailableEditorsAsString().c_str()));

    // start LSCP network server
    struct in_addr addr;
    addr.s_addr = lscp_addr;
    dmsg(1,("Starting LSCP network server (%s:%d)...", inet_ntoa(addr), ntohs(lscp_port)));
    pLSCPServer = new LSCPServer(pSampler, lscp_addr, lscp_port);
    pLSCPServer->StartThread();
    pLSCPServer->WaitUntilInitialized();
    dmsg(1,("OK\n"));

    if (profile)
    {
        dmsg(1,("Calibrating profiler..."));
        LinuxSampler::gig::Profiler::Calibrate();
        LinuxSampler::gig::Profiler::Reset();
        LinuxSampler::gig::Profiler::enable();
        dmsg(1,("OK\n"));
    }

    printf("LinuxSampler initialization completed. :-)\n\n");

    std::list<LSCPEvent::event_t> rtEvents;
    rtEvents.push_back(LSCPEvent::event_voice_count);
    rtEvents.push_back(LSCPEvent::event_stream_count);
    rtEvents.push_back(LSCPEvent::event_buffer_fill);
    rtEvents.push_back(LSCPEvent::event_total_voice_count);

    while (atomic_read(&running)) {
        if (bPrintStatistics) {
            const std::set<Engine*>& engines = EngineFactory::EngineInstances();
            std::set<Engine*>::iterator itEngine = engines.begin();
            for (int i = 0; itEngine != engines.end(); itEngine++, i++) {
                Engine* pEngine = *itEngine;
                printf("Engine %d) Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d)\n", i,
                    pEngine->VoiceCount(), pEngine->VoiceCountMax(),
                    pEngine->DiskStreamCount(), pEngine->DiskStreamCountMax()
                );
                fflush(stdout);
            }
        }

        sleep(1);
        if (profile)
        {
            unsigned int samplingFreq = 48000; //FIXME: hardcoded for now
            unsigned int bv = LinuxSampler::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;
                EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
                if (!pEngineChannel) continue;
                Engine* pEngine = pEngineChannel->GetEngine();
                if (!pEngine) continue;
                pSampler->fireVoiceCountChanged(iter->first, pEngineChannel->GetVoiceCount());
                pSampler->fireStreamCountChanged(iter->first, pEngineChannel->GetDiskStreamCount());
                pSampler->fireBufferFillChanged(iter->first, pEngine->DiskStreamBufferFillPercentage());
                pSampler->fireTotalStreamCountChanged(pSampler->GetDiskStreamCount());
                pSampler->fireTotalVoiceCountChanged(pSampler->GetVoiceCount());
            }
            LSCPServer::UnlockRTNotify();
        }
    }
    if (pLSCPServer) pLSCPServer->StopThread();
    // the delete order here is important: the Sampler
    // destructor sends notifications to the lscpserver
    if (pSampler) delete pSampler;
    if (pLSCPServer) delete pLSCPServer;
    printf("LinuxSampler stopped due to SIGINT.\n");
    return EXIT_SUCCESS;
}

void signal_handler(int iSignal) {
    switch (iSignal) {
        case SIGINT:
            atomic_set(&running, 0);
            return;
        #if defined(WIN32)
        // FIXME: under WIN32 we ignore the signals below due to the missing sigaction call
        #else
        case SIGSEGV:
            std::cerr << ">>> FATAL ERROR: Segmentation fault (SIGSEGV) occured! <<<\n" << std::flush;
            break;
        case SIGBUS:
            std::cerr << ">>> FATAL ERROR: Access to undefined portion of a memory object (SIGBUS) occured! <<<\n" << std::flush;
            break;
        case SIGILL:
            std::cerr << ">>> FATAL ERROR: Illegal instruction (SIGILL) occured! <<<\n" << std::flush;
            break;
        case SIGFPE:
            std::cerr << ">>> FATAL ERROR: Erroneous arithmetic operation (SIGFPE) occured! <<<\n" << std::flush;
            break;
        case SIGUSR1:
            std::cerr << ">>> User defined signal 1 (SIGUSR1) received <<<\n" << std::flush;
            break;
        case SIGUSR2:
            std::cerr << ">>> User defined signal 2 (SIGUSR2) received <<<\n" << std::flush;
            break;
        #endif
        default: { // this should never happen, as we register for the signals we want
            std::cerr << ">>> FATAL ERROR: Unknown signal received! <<<\n" << std::flush;
            break;
        }
    }
    signal(iSignal, SIG_DFL); // Reinstall default handler to prevent race conditions
    std::cerr << "Showing stack trace...\n" << std::flush;
    StackTrace();
    sleep(2);
    std::cerr << "Killing LinuxSampler...\n" << std::flush;
    kill_app(); // Use abort() if we want to generate a core dump.
}

void kill_app() {
    #if defined(WIN32)
    // FIXME: do we need to do anything at this point under WIN32 ?  is exit(0) ok ?
    exit(0);
    #else
    kill(main_pid, SIGKILL);
    #endif
}

void parse_options(int argc, char **argv) {
    int res;
    int option_index = 0;
    static struct option long_options[] =
        {
            {"help",0,0,0},
            {"version",0,0,0},
            {"profile",0,0,0},
            {"no-tune",0,0,0},
            {"statistics",0,0,0},
            {"instruments-db-location",1,0,0},
            {"create-instruments-db",1,0,0},
            {"lscp-addr",1,0,0},
            {"lscp-port",1,0,0},
            {0,0,0,0}
        };

    while (true) {
        /*
          Stephane Letz : letz@grame.fr
          getopt_long_only does not exist on OSX : replaced by getopt_long for now.
        */
        res = getopt_long(argc, argv, "", long_options, &option_index);
        if(res == -1) break;
        if (res == 0) {
            switch(option_index) {
                case 0: // --help
                    printf("usage: linuxsampler [OPTIONS]\n\n");
                    printf("--help                      prints this message\n");
                    printf("--version                   prints version information\n");
                    printf("--profile                   profile synthesis algorithms\n");
                    printf("--no-tune                   disable assembly optimization\n");
                    printf("--statistics                periodically prints statistics\n");
                    printf("--lscp-addr                 set LSCP address (default: any)\n");
                    printf("--lscp-port                 set LSCP port (default: 8888)\n");
                    printf("--create-instruments-db     creates an instruments DB\n");
                    printf("--instruments-db-location   specifies the instruments DB file\n");
                    exit(EXIT_SUCCESS);
                    break;
                case 1: // --version
                    printf("LinuxSampler %s\n", VERSION);
                    exit(EXIT_SUCCESS);
                    break;
                case 2: // --profile
                    profile = true;
                    break;
                case 3: // --no-tune
                    tune = false;
                    break;
                case 4: // --statistics
                    bPrintStatistics = true;
                    break;
                case 5: // --instruments-db-location
#if HAVE_SQLITE3
                    try {
                        if (optarg) {
                            struct stat statBuf;
                            int res = stat(optarg, &statBuf);

                            if (res) {
                                std::stringstream ss;
                                ss << "Failed to stat `" << optarg << "`: " << strerror(errno);
                                throw Exception(ss.str());
                            }

                            if (!S_ISREG(statBuf.st_mode)) {
                                std::stringstream ss;
                                ss << "`" << optarg << "` is not a regular file";
                                throw Exception(ss.str());
                            }

                            InstrumentsDb::GetInstrumentsDb()->SetDbFile(String(optarg));
                        }
                    } catch(Exception e) {
                        std::cerr << "Could not open instruments DB file: "
                                  << e.Message() << std::endl;
                        exit(EXIT_FAILURE);
                    }
                    break;
#else
                    std::cerr << "LinuxSampler was not build with ";
                    std::cerr << "instruments database support!\n";
                    exit(EXIT_FAILURE);
                    break;
#endif
                case 6: // --create-instruments-db
#if HAVE_SQLITE3
                    try {
                        if (optarg) {
                            std::cout << "Creating instruments database..." << std::endl;
                            InstrumentsDb::CreateInstrumentsDb(String(optarg));
                            std::cout << "Done" << std::endl;
                        }
                    } catch(Exception e) {
                        std::cerr << e.Message() << std::endl;
                        exit(EXIT_FAILURE);
                        return;
                    }

                    exit(EXIT_SUCCESS);
                    return;
#else
                    std::cerr << "Failed to create the database. LinuxSampler was ";
                    std::cerr << "not build with instruments database support!\n";
                    exit(EXIT_FAILURE);
                    return;
#endif
                case 7: // --lscp-addr
                    struct in_addr addr;
                    if (inet_aton(optarg, &addr) == 0)
                        printf("WARNING: Failed to parse lscp-addr argument, ignoring!\n");
                    else
                        lscp_addr = addr.s_addr;
                    break;
                case 8: // --lscp-port
                    long unsigned int port = 0;
                    if ((sscanf(optarg, "%u", &port) != 1) || (port == 0) || (port > 65535))
                        printf("WARNING: Failed to parse lscp-port argument, ignoring!\n");
                    else
                        lscp_port = htons(port);
                    break;
            }
        }
    }
}
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			* Copyright (C) 2005-2008 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
27	senoner	1502	#if defined(WIN32)
28			// require at least Windows 2000 for the GlobalMemoryStatusEx() call
29			#define _WIN32_WINNT 0x0500
30			#endif
31
32	schoenebeck	53	#include "Sampler.h"
33	schoenebeck	1424	#include "common/global_private.h"
34	schoenebeck	420	#include "engines/EngineFactory.h"
35	schoenebeck	1375	#include "plugins/InstrumentEditorFactory.h"
36	schoenebeck	207	#include "drivers/midi/MidiInputDeviceFactory.h"
37	schoenebeck	203	#include "drivers/audio/AudioOutputDeviceFactory.h"
38	senkov	325	#include "engines/gig/Profiler.h"
39	schoenebeck	35	#include "network/lscpserver.h"
40	schoenebeck	271	#include "common/stacktrace.h"
41	schoenebeck	319	#include "common/Features.h"
42	persson	1534	#include "common/atomic.h"
43	schoenebeck	9
44	schoenebeck	53	using namespace LinuxSampler;
45
46	schoenebeck	211	Sampler* pSampler = NULL;
47			LSCPServer* pLSCPServer = NULL;
48	senoner	1502	#if defined(WIN32)
49			// inet_aton seems missing under WIN32
50			#ifndef INADDR_NONE
51			#define INADDR_NONE 0xffffffff
52			#endif
53
54			int inet_aton(const char cp, struct in_addr addr)
55			{
56			addr->s_addr = inet_addr(cp);
57			return (addr->s_addr == INADDR_NONE) ? 0 : 1;
58			}
59
60			#else
61	wylder	816	pid_t main_pid;
62	senoner	1502	#endif
63	schoenebeck	420	bool bPrintStatistics = false;
64	senkov	325	bool profile = false;
65			bool tune = true;
66	senkov	667	unsigned long int lscp_addr;
67			unsigned short int lscp_port;
68	schoenebeck	9
69			void parse_options(int argc, char **argv);
70			void signal_handler(int signal);
71	schoenebeck	271	void kill_app();
72	persson	1534	static atomic_t running = ATOMIC_INIT(1);
73	schoenebeck	9
74			int main(int argc, char **argv) {
75
76	schoenebeck	271	// initialize the stack trace mechanism with our binary file
77			StackTraceInit(argv[0], -1);
78
79	senoner	1502	#if defined(WIN32)
80			// some WIN32 memory info code which tries to determine the maximum lockable amount of memory (for debug purposes)
81			SYSTEM_INFO siSysInfo;
82			long physical_memory;
83			GetSystemInfo(&siSysInfo);
84			dmsg(1,("page size=%d\n", siSysInfo.dwPageSize));
85
86			MEMORYSTATUSEX statex;
87			statex.dwLength = sizeof (statex);
88			GlobalMemoryStatusEx (&statex);
89			dmsg(1, ("There are %*I64d total Kbytes of physical memory.\n",
90			8, statex.ullTotalPhys));
91			dmsg(1, ("There are %*I64d free Kbytes of physical memory.\n",
92			8, statex.ullAvailPhys));
93			physical_memory = statex.ullTotalPhys;
94
95			HANDLE hProcess = GetCurrentProcess();
96
97			unsigned long MinimumWorkingSetSize, MaximumWorkingSetSize;
98			unsigned long DefaultMinimumWorkingSetSize, DefaultMaximumWorkingSetSize;
99			unsigned long RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize;
100			int res;
101
102			res = GetProcessWorkingSetSize(hProcess, &DefaultMinimumWorkingSetSize, &DefaultMaximumWorkingSetSize);
103
104			RequestedMaximumWorkingSetSize = physical_memory - 210241024;
105			RequestedMinimumWorkingSetSize = RequestedMaximumWorkingSetSize;
106
107			for(;;) {
108			dmsg(2,("TRYING VALUES RequestedMinimumWorkingSetSize=%d, RequestedMaximumWorkingSetSize=%d\n", RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize));
109			res = SetProcessWorkingSetSize(hProcess, RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize);
110			dmsg(2,("AFTER SET: res = %d RequestedMinimumWorkingSetSize=%d, RequestedMaximumWorkingSetSize=%d\n", res,RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize));
111
112			res = GetProcessWorkingSetSize(hProcess, &MinimumWorkingSetSize, &MaximumWorkingSetSize);
113			dmsg(2,("AFTER GET: res = %d MinimumWorkingSetSize=%d, MaximumWorkingSetSize=%d\n", res,MinimumWorkingSetSize, MaximumWorkingSetSize));
114
115			if( RequestedMinimumWorkingSetSize == MinimumWorkingSetSize ) {
116			dmsg(2,("RequestedMinimumWorkingSetSize == MinimumWorkingSetSize. OK !\n"));
117			break;
118			}
119
120			RequestedMinimumWorkingSetSize -= 1010241024;
121			if(RequestedMinimumWorkingSetSize < DefaultMinimumWorkingSetSize) break;
122			}
123
124			dmsg(1,("AFTER GetProcessWorkingSetSize: res = %d MinimumWorkingSetSize=%d, MaximumWorkingSetSize=%d\n", res,MinimumWorkingSetSize, MaximumWorkingSetSize));
125			#endif
126
127	persson	1534	#if !defined(WIN32)
128	wylder	816	main_pid = getpid();
129	senoner	1502	#endif
130	schoenebeck	271
131	schoenebeck	9	// setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)
132			signal(SIGINT, signal_handler);
133
134	senoner	1502	#if defined(WIN32)
135			// FIXME: sigaction() not supported on WIN32, we ignore it for now
136			#else
137	schoenebeck	271	// register signal handler for all unusual signals
138			// (we will print the stack trace and exit)
139			struct sigaction sact;
140			sigemptyset(&sact.sa_mask);
141			sact.sa_flags = 0;
142			sact.sa_handler = signal_handler;
143			sigaction(SIGSEGV, &sact, NULL);
144			sigaction(SIGBUS, &sact, NULL);
145			sigaction(SIGILL, &sact, NULL);
146			sigaction(SIGFPE, &sact, NULL);
147			sigaction(SIGUSR1, &sact, NULL);
148			sigaction(SIGUSR2, &sact, NULL);
149	senoner	1502	#endif
150	schoenebeck	271
151	senkov	667	lscp_addr = htonl(LSCP_ADDR);
152			lscp_port = htons(LSCP_PORT);
153
154	schoenebeck	9	// parse and assign command line options
155	senkov	325	parse_options(argc, argv);
156	schoenebeck	9
157	schoenebeck	207	dmsg(1,("LinuxSampler %s\n", VERSION));
158	capela	1012	dmsg(1,("Copyright (C) 2003,2004 by Benno Senoner and Christian Schoenebeck\n"));
159			dmsg(1,("Copyright (C) 2005-2007 Christian Schoenebeck\n"));
160	schoenebeck	123
161	schoenebeck	579	if (tune) {
162	persson	425	// detect and print system / CPU specific features
163			Features::detect();
164	schoenebeck	579	dmsg(1,("Detected features: %s\n", Features::featuresAsString().c_str()));
165			// prevent slow denormal FPU modes
166			Features::enableDenormalsAreZeroMode();
167	senkov	325	}
168	schoenebeck	319
169	schoenebeck	53	// create LinuxSampler instance
170	schoenebeck	123	dmsg(1,("Creating Sampler..."));
171	schoenebeck	53	pSampler = new Sampler;
172	schoenebeck	123	dmsg(1,("OK\n"));
173	schoenebeck	53
174	schoenebeck	900	dmsg(1,("Registered sampler engines: %s\n", EngineFactory::AvailableEngineTypesAsString().c_str()));
175	schoenebeck	207	dmsg(1,("Registered MIDI input drivers: %s\n", MidiInputDeviceFactory::AvailableDriversAsString().c_str()));
176	schoenebeck	123	dmsg(1,("Registered audio output drivers: %s\n", AudioOutputDeviceFactory::AvailableDriversAsString().c_str()));
177	schoenebeck	1212	dmsg(1,("Registered instrument editors: %s\n", InstrumentEditorFactory::AvailableEditorsAsString().c_str()));
178	schoenebeck	123
179	schoenebeck	53	// start LSCP network server
180	senkov	667	struct in_addr addr;
181			addr.s_addr = lscp_addr;
182			dmsg(1,("Starting LSCP network server (%s:%d)...", inet_ntoa(addr), ntohs(lscp_port)));
183			pLSCPServer = new LSCPServer(pSampler, lscp_addr, lscp_port);
184	schoenebeck	53	pLSCPServer->StartThread();
185	schoenebeck	211	pLSCPServer->WaitUntilInitialized();
186	schoenebeck	12	dmsg(1,("OK\n"));
187	schoenebeck	9
188	senkov	325	if (profile)
189			{
190	persson	425	dmsg(1,("Calibrating profiler..."));
191	iliev	1161	LinuxSampler::gig::Profiler::Calibrate();
192			LinuxSampler::gig::Profiler::Reset();
193			LinuxSampler::gig::Profiler::enable();
194	persson	425	dmsg(1,("OK\n"));
195	senkov	325	}
196
197	schoenebeck	563	printf("LinuxSampler initialization completed. :-)\n\n");
198	schoenebeck	9
199	senkov	360	std::list<LSCPEvent::event_t> rtEvents;
200			rtEvents.push_back(LSCPEvent::event_voice_count);
201			rtEvents.push_back(LSCPEvent::event_stream_count);
202			rtEvents.push_back(LSCPEvent::event_buffer_fill);
203	iliev	778	rtEvents.push_back(LSCPEvent::event_total_voice_count);
204	senkov	360
205	persson	1534	while (atomic_read(&running)) {
206	schoenebeck	420	if (bPrintStatistics) {
207	persson	840	const std::set<Engine*>& engines = EngineFactory::EngineInstances();
208	schoenebeck	420	std::set<Engine*>::iterator itEngine = engines.begin();
209			for (int i = 0; itEngine != engines.end(); itEngine++, i++) {
210			Engine* pEngine = *itEngine;
211			printf("Engine %d) Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d)\n", i,
212			pEngine->VoiceCount(), pEngine->VoiceCountMax(),
213			pEngine->DiskStreamCount(), pEngine->DiskStreamCountMax()
214			);
215			fflush(stdout);
216			}
217			}
218	persson	425
219	persson	1534	sleep(1);
220			if (profile)
221			{
222			unsigned int samplingFreq = 48000; //FIXME: hardcoded for now
223			unsigned int bv = LinuxSampler::gig::Profiler::GetBogoVoices(samplingFreq);
224			if (bv != 0)
225			{
226			printf(" BogoVoices: %i \r", bv);
227			fflush(stdout);
228			}
229			}
230	persson	425
231	persson	1534	if (LSCPServer::EventSubscribers(rtEvents))
232			{
233			LSCPServer::LockRTNotify();
234			std::map<uint,SamplerChannel*> channels = pSampler->GetSamplerChannels();
235			std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
236			for (; iter != channels.end(); iter++) {
237			SamplerChannel* pSamplerChannel = iter->second;
238			EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
239			if (!pEngineChannel) continue;
240			Engine* pEngine = pEngineChannel->GetEngine();
241			if (!pEngine) continue;
242			pSampler->fireVoiceCountChanged(iter->first, pEngineChannel->GetVoiceCount());
243			pSampler->fireStreamCountChanged(iter->first, pEngineChannel->GetDiskStreamCount());
244			pSampler->fireBufferFillChanged(iter->first, pEngine->DiskStreamBufferFillPercentage());
245	iliev	1541	pSampler->fireTotalStreamCountChanged(pSampler->GetDiskStreamCount());
246	persson	1534	pSampler->fireTotalVoiceCountChanged(pSampler->GetVoiceCount());
247			}
248			LSCPServer::UnlockRTNotify();
249			}
250	senoner	10	}
251	persson	1534	if (pLSCPServer) pLSCPServer->StopThread();
252			// the delete order here is important: the Sampler
253			// destructor sends notifications to the lscpserver
254			if (pSampler) delete pSampler;
255			if (pLSCPServer) delete pLSCPServer;
256			printf("LinuxSampler stopped due to SIGINT.\n");
257	schoenebeck	9	return EXIT_SUCCESS;
258			}
259
260	schoenebeck	271	void signal_handler(int iSignal) {
261			switch (iSignal) {
262	persson	1534	case SIGINT:
263			atomic_set(&running, 0);
264	schoenebeck	271	return;
265	senoner	1502	#if defined(WIN32)
266			// FIXME: under WIN32 we ignore the signals below due to the missing sigaction call
267			#else
268	schoenebeck	271	case SIGSEGV:
269			std::cerr << ">>> FATAL ERROR: Segmentation fault (SIGSEGV) occured! <<<\n" << std::flush;
270			break;
271			case SIGBUS:
272			std::cerr << ">>> FATAL ERROR: Access to undefined portion of a memory object (SIGBUS) occured! <<<\n" << std::flush;
273			break;
274			case SIGILL:
275			std::cerr << ">>> FATAL ERROR: Illegal instruction (SIGILL) occured! <<<\n" << std::flush;
276			break;
277			case SIGFPE:
278			std::cerr << ">>> FATAL ERROR: Erroneous arithmetic operation (SIGFPE) occured! <<<\n" << std::flush;
279			break;
280			case SIGUSR1:
281			std::cerr << ">>> User defined signal 1 (SIGUSR1) received <<<\n" << std::flush;
282			break;
283			case SIGUSR2:
284			std::cerr << ">>> User defined signal 2 (SIGUSR2) received <<<\n" << std::flush;
285			break;
286	senoner	1502	#endif
287	schoenebeck	271	default: { // this should never happen, as we register for the signals we want
288			std::cerr << ">>> FATAL ERROR: Unknown signal received! <<<\n" << std::flush;
289			break;
290			}
291	schoenebeck	9	}
292	schoenebeck	271	signal(iSignal, SIG_DFL); // Reinstall default handler to prevent race conditions
293			std::cerr << "Showing stack trace...\n" << std::flush;
294			StackTrace();
295			sleep(2);
296			std::cerr << "Killing LinuxSampler...\n" << std::flush;
297			kill_app(); // Use abort() if we want to generate a core dump.
298	schoenebeck	9	}
299
300	schoenebeck	271	void kill_app() {
301	senoner	1502	#if defined(WIN32)
302			// FIXME: do we need to do anything at this point under WIN32 ? is exit(0) ok ?
303			exit(0);
304			#else
305	wylder	816	kill(main_pid, SIGKILL);
306	senoner	1502	#endif
307	schoenebeck	271	}
308
309	senkov	325	void parse_options(int argc, char **argv) {
310	schoenebeck	9	int res;
311			int option_index = 0;
312			static struct option long_options[] =
313			{
314			{"help",0,0,0},
315	senkov	325	{"version",0,0,0},
316			{"profile",0,0,0},
317			{"no-tune",0,0,0},
318	schoenebeck	420	{"statistics",0,0,0},
319	iliev	1208	{"instruments-db-location",1,0,0},
320	iliev	1187	{"create-instruments-db",1,0,0},
321	senkov	667	{"lscp-addr",1,0,0},
322			{"lscp-port",1,0,0},
323	schoenebeck	9	{0,0,0,0}
324			};
325
326			while (true) {
327	schoenebeck	361	/*
328			Stephane Letz : letz@grame.fr
329			getopt_long_only does not exist on OSX : replaced by getopt_long for now.
330			*/
331			res = getopt_long(argc, argv, "", long_options, &option_index);
332	schoenebeck	9	if(res == -1) break;
333			if (res == 0) {
334			switch(option_index) {
335	senkov	325	case 0: // --help
336			printf("usage: linuxsampler [OPTIONS]\n\n");
337	iliev	1208	printf("--help prints this message\n");
338			printf("--version prints version information\n");
339			printf("--profile profile synthesis algorithms\n");
340			printf("--no-tune disable assembly optimization\n");
341			printf("--statistics periodically prints statistics\n");
342			printf("--lscp-addr set LSCP address (default: any)\n");
343			printf("--lscp-port set LSCP port (default: 8888)\n");
344			printf("--create-instruments-db creates an instruments DB\n");
345			printf("--instruments-db-location specifies the instruments DB file\n");
346	senkov	325	exit(EXIT_SUCCESS);
347	schoenebeck	9	break;
348	senkov	325	case 1: // --version
349	schoenebeck	328	printf("LinuxSampler %s\n", VERSION);
350			exit(EXIT_SUCCESS);
351	schoenebeck	9	break;
352	senkov	325	case 2: // --profile
353	persson	425	profile = true;
354	schoenebeck	20	break;
355	senkov	325	case 3: // --no-tune
356	persson	425	tune = false;
357	schoenebeck	9	break;
358	schoenebeck	420	case 4: // --statistics
359			bPrintStatistics = true;
360			break;
361	iliev	1208	case 5: // --instruments-db-location
362	iliev	1187	#if HAVE_SQLITE3
363			try {
364			if (optarg) {
365	iliev	1208	struct stat statBuf;
366			int res = stat(optarg, &statBuf);
367
368			if (res) {
369			std::stringstream ss;
370	schoenebeck	1364	ss << "Failed to stat `" << optarg << "`: " << strerror(errno);
371	iliev	1208	throw Exception(ss.str());
372			}
373
374			if (!S_ISREG(statBuf.st_mode)) {
375			std::stringstream ss;
376			ss << "`" << optarg << "` is not a regular file";
377			throw Exception(ss.str());
378			}
379
380			InstrumentsDb::GetInstrumentsDb()->SetDbFile(String(optarg));
381			}
382			} catch(Exception e) {
383	schoenebeck	1364	std::cerr << "Could not open instruments DB file: "
384			<< e.Message() << std::endl;
385			exit(EXIT_FAILURE);
386	iliev	1208	}
387	schoenebeck	1364	break;
388	iliev	1208	#else
389			std::cerr << "LinuxSampler was not build with ";
390	schoenebeck	1364	std::cerr << "instruments database support!\n";
391			exit(EXIT_FAILURE);
392			break;
393			#endif
394	iliev	1208	case 6: // --create-instruments-db
395			#if HAVE_SQLITE3
396			try {
397			if (optarg) {
398	iliev	1187	std::cout << "Creating instruments database..." << std::endl;
399			InstrumentsDb::CreateInstrumentsDb(String(optarg));
400			std::cout << "Done" << std::endl;
401			}
402			} catch(Exception e) {
403			std::cerr << e.Message() << std::endl;
404			exit(EXIT_FAILURE);
405			return;
406			}
407
408			exit(EXIT_SUCCESS);
409			return;
410			#else
411			std::cerr << "Failed to create the database. LinuxSampler was ";
412	schoenebeck	1364	std::cerr << "not build with instruments database support!\n";
413	iliev	1187	exit(EXIT_FAILURE);
414			return;
415	schoenebeck	1364	#endif
416	iliev	1208	case 7: // --lscp-addr
417	iliev	1187	struct in_addr addr;
418			if (inet_aton(optarg, &addr) == 0)
419			printf("WARNING: Failed to parse lscp-addr argument, ignoring!\n");
420			else
421			lscp_addr = addr.s_addr;
422	senkov	667	break;
423	iliev	1208	case 8: // --lscp-port
424	iliev	1187	long unsigned int port = 0;
425			if ((sscanf(optarg, "%u", &port) != 1) \|\| (port == 0) \|\| (port > 65535))
426			printf("WARNING: Failed to parse lscp-port argument, ignoring!\n");
427			else
428			lscp_port = htons(port);
429	senkov	667	break;
430	schoenebeck	9	}
431			}
432			}
433	senkov	325	}