trunk/src/linuxsampler.cpp

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2003-2004 by Benno Senoner and Christian Schoenebeck    *
 *   Copyright (C) 2005-2009 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;
static bool bShowStackTrace = false;
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) {

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

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

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

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

    // initialize the stack trace mechanism with our binary file
    // (if requested by command line option)
    if (bShowStackTrace) {
        #if defined(WIN32)
        // FIXME: sigaction() not supported on WIN32, we ignore it for now
        #else
        StackTraceInit(argv[0], -1);
        // 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
    }

    dmsg(1,("LinuxSampler %s\n", VERSION));
    dmsg(1,("Copyright (C) 2003,2004 by Benno Senoner and Christian Schoenebeck\n"));
    dmsg(1,("Copyright (C) 2005-2009 Christian Schoenebeck\n"));

    #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 // WIN32

    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();
    }

    dmsg(1,("Automatic Stacktrace: %s\n", (bShowStackTrace) ? "On" : "Off"));

    // 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");

    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);
            }
        }

        pSampler->fireStatistics();
    }
    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
    if (bShowStackTrace) {
        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},
            {"stacktrace",0,0,0},
            {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");
                    printf("--stacktrace                automatically shows stacktrace if crashes\n");
                    printf("                            (broken on most systems at the moment)\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;
                }
                case 9: // --stacktrace
                    bShowStackTrace = true;
                    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	schoenebeck	1830	* Copyright (C) 2005-2009 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	schoenebeck	1830	static bool bShowStackTrace = false;
67	senkov	667	unsigned long int lscp_addr;
68			unsigned short int lscp_port;
69	schoenebeck	9
70			void parse_options(int argc, char **argv);
71			void signal_handler(int signal);
72	schoenebeck	271	void kill_app();
73	persson	1534	static atomic_t running = ATOMIC_INIT(1);
74	schoenebeck	9
75			int main(int argc, char **argv) {
76
77	schoenebeck	1830	lscp_addr = htonl(LSCP_ADDR);
78			lscp_port = htons(LSCP_PORT);
79
80			#if !defined(WIN32)
81			main_pid = getpid();
82			#endif
83
84			// parse and assign command line options
85			parse_options(argc, argv);
86
87			// setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)
88			signal(SIGINT, signal_handler);
89
90	schoenebeck	271	// initialize the stack trace mechanism with our binary file
91	schoenebeck	1830	// (if requested by command line option)
92			if (bShowStackTrace) {
93			#if defined(WIN32)
94			// FIXME: sigaction() not supported on WIN32, we ignore it for now
95			#else
96			StackTraceInit(argv[0], -1);
97			// register signal handler for all unusual signals
98			// (we will print the stack trace and exit)
99			struct sigaction sact;
100			sigemptyset(&sact.sa_mask);
101			sact.sa_flags = 0;
102			sact.sa_handler = signal_handler;
103			sigaction(SIGSEGV, &sact, NULL);
104			sigaction(SIGBUS, &sact, NULL);
105			sigaction(SIGILL, &sact, NULL);
106			sigaction(SIGFPE, &sact, NULL);
107			sigaction(SIGUSR1, &sact, NULL);
108			sigaction(SIGUSR2, &sact, NULL);
109			#endif
110			}
111	schoenebeck	271
112	schoenebeck	1830	dmsg(1,("LinuxSampler %s\n", VERSION));
113			dmsg(1,("Copyright (C) 2003,2004 by Benno Senoner and Christian Schoenebeck\n"));
114			dmsg(1,("Copyright (C) 2005-2009 Christian Schoenebeck\n"));
115
116	senoner	1502	#if defined(WIN32)
117			// some WIN32 memory info code which tries to determine the maximum lockable amount of memory (for debug purposes)
118			SYSTEM_INFO siSysInfo;
119			long physical_memory;
120			GetSystemInfo(&siSysInfo);
121			dmsg(1,("page size=%d\n", siSysInfo.dwPageSize));
122
123			MEMORYSTATUSEX statex;
124			statex.dwLength = sizeof (statex);
125			GlobalMemoryStatusEx (&statex);
126			dmsg(1, ("There are %*I64d total Kbytes of physical memory.\n",
127			8, statex.ullTotalPhys));
128			dmsg(1, ("There are %*I64d free Kbytes of physical memory.\n",
129			8, statex.ullAvailPhys));
130			physical_memory = statex.ullTotalPhys;
131
132			HANDLE hProcess = GetCurrentProcess();
133
134			unsigned long MinimumWorkingSetSize, MaximumWorkingSetSize;
135			unsigned long DefaultMinimumWorkingSetSize, DefaultMaximumWorkingSetSize;
136			unsigned long RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize;
137			int res;
138
139			res = GetProcessWorkingSetSize(hProcess, &DefaultMinimumWorkingSetSize, &DefaultMaximumWorkingSetSize);
140
141			RequestedMaximumWorkingSetSize = physical_memory - 210241024;
142			RequestedMinimumWorkingSetSize = RequestedMaximumWorkingSetSize;
143
144			for(;;) {
145			dmsg(2,("TRYING VALUES RequestedMinimumWorkingSetSize=%d, RequestedMaximumWorkingSetSize=%d\n", RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize));
146			res = SetProcessWorkingSetSize(hProcess, RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize);
147			dmsg(2,("AFTER SET: res = %d RequestedMinimumWorkingSetSize=%d, RequestedMaximumWorkingSetSize=%d\n", res,RequestedMinimumWorkingSetSize, RequestedMaximumWorkingSetSize));
148
149			res = GetProcessWorkingSetSize(hProcess, &MinimumWorkingSetSize, &MaximumWorkingSetSize);
150			dmsg(2,("AFTER GET: res = %d MinimumWorkingSetSize=%d, MaximumWorkingSetSize=%d\n", res,MinimumWorkingSetSize, MaximumWorkingSetSize));
151
152			if( RequestedMinimumWorkingSetSize == MinimumWorkingSetSize ) {
153			dmsg(2,("RequestedMinimumWorkingSetSize == MinimumWorkingSetSize. OK !\n"));
154			break;
155			}
156
157			RequestedMinimumWorkingSetSize -= 1010241024;
158			if(RequestedMinimumWorkingSetSize < DefaultMinimumWorkingSetSize) break;
159			}
160
161			dmsg(1,("AFTER GetProcessWorkingSetSize: res = %d MinimumWorkingSetSize=%d, MaximumWorkingSetSize=%d\n", res,MinimumWorkingSetSize, MaximumWorkingSetSize));
162	schoenebeck	1830	#endif // WIN32
163	senoner	1502
164	schoenebeck	579	if (tune) {
165	persson	425	// detect and print system / CPU specific features
166			Features::detect();
167	schoenebeck	579	dmsg(1,("Detected features: %s\n", Features::featuresAsString().c_str()));
168			// prevent slow denormal FPU modes
169			Features::enableDenormalsAreZeroMode();
170	senkov	325	}
171	schoenebeck	319
172	schoenebeck	1830	dmsg(1,("Automatic Stacktrace: %s\n", (bShowStackTrace) ? "On" : "Off"));
173
174	schoenebeck	53	// create LinuxSampler instance
175	schoenebeck	123	dmsg(1,("Creating Sampler..."));
176	schoenebeck	53	pSampler = new Sampler;
177	schoenebeck	123	dmsg(1,("OK\n"));
178	schoenebeck	53
179	schoenebeck	900	dmsg(1,("Registered sampler engines: %s\n", EngineFactory::AvailableEngineTypesAsString().c_str()));
180	schoenebeck	207	dmsg(1,("Registered MIDI input drivers: %s\n", MidiInputDeviceFactory::AvailableDriversAsString().c_str()));
181	schoenebeck	123	dmsg(1,("Registered audio output drivers: %s\n", AudioOutputDeviceFactory::AvailableDriversAsString().c_str()));
182	schoenebeck	1212	dmsg(1,("Registered instrument editors: %s\n", InstrumentEditorFactory::AvailableEditorsAsString().c_str()));
183	schoenebeck	123
184	schoenebeck	53	// start LSCP network server
185	senkov	667	struct in_addr addr;
186			addr.s_addr = lscp_addr;
187			dmsg(1,("Starting LSCP network server (%s:%d)...", inet_ntoa(addr), ntohs(lscp_port)));
188			pLSCPServer = new LSCPServer(pSampler, lscp_addr, lscp_port);
189	schoenebeck	53	pLSCPServer->StartThread();
190	schoenebeck	211	pLSCPServer->WaitUntilInitialized();
191	schoenebeck	12	dmsg(1,("OK\n"));
192	schoenebeck	9
193	senkov	325	if (profile)
194			{
195	persson	425	dmsg(1,("Calibrating profiler..."));
196	iliev	1161	LinuxSampler::gig::Profiler::Calibrate();
197			LinuxSampler::gig::Profiler::Reset();
198			LinuxSampler::gig::Profiler::enable();
199	persson	425	dmsg(1,("OK\n"));
200	senkov	325	}
201
202	schoenebeck	563	printf("LinuxSampler initialization completed. :-)\n\n");
203	schoenebeck	9
204	persson	1534	while (atomic_read(&running)) {
205	schoenebeck	420	if (bPrintStatistics) {
206	persson	840	const std::set<Engine*>& engines = EngineFactory::EngineInstances();
207	schoenebeck	420	std::set<Engine*>::iterator itEngine = engines.begin();
208			for (int i = 0; itEngine != engines.end(); itEngine++, i++) {
209			Engine* pEngine = *itEngine;
210			printf("Engine %d) Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d)\n", i,
211			pEngine->VoiceCount(), pEngine->VoiceCountMax(),
212			pEngine->DiskStreamCount(), pEngine->DiskStreamCountMax()
213			);
214			fflush(stdout);
215			}
216			}
217	persson	425
218	persson	1534	sleep(1);
219			if (profile)
220			{
221			unsigned int samplingFreq = 48000; //FIXME: hardcoded for now
222			unsigned int bv = LinuxSampler::gig::Profiler::GetBogoVoices(samplingFreq);
223			if (bv != 0)
224			{
225			printf(" BogoVoices: %i \r", bv);
226			fflush(stdout);
227			}
228			}
229	persson	425
230	persson	1765	pSampler->fireStatistics();
231	senoner	10	}
232	persson	1534	if (pLSCPServer) pLSCPServer->StopThread();
233			// the delete order here is important: the Sampler
234			// destructor sends notifications to the lscpserver
235			if (pSampler) delete pSampler;
236			if (pLSCPServer) delete pLSCPServer;
237			printf("LinuxSampler stopped due to SIGINT.\n");
238	schoenebeck	9	return EXIT_SUCCESS;
239			}
240
241	schoenebeck	271	void signal_handler(int iSignal) {
242			switch (iSignal) {
243	persson	1534	case SIGINT:
244			atomic_set(&running, 0);
245	schoenebeck	271	return;
246	senoner	1502	#if defined(WIN32)
247			// FIXME: under WIN32 we ignore the signals below due to the missing sigaction call
248			#else
249	schoenebeck	271	case SIGSEGV:
250			std::cerr << ">>> FATAL ERROR: Segmentation fault (SIGSEGV) occured! <<<\n" << std::flush;
251			break;
252			case SIGBUS:
253			std::cerr << ">>> FATAL ERROR: Access to undefined portion of a memory object (SIGBUS) occured! <<<\n" << std::flush;
254			break;
255			case SIGILL:
256			std::cerr << ">>> FATAL ERROR: Illegal instruction (SIGILL) occured! <<<\n" << std::flush;
257			break;
258			case SIGFPE:
259			std::cerr << ">>> FATAL ERROR: Erroneous arithmetic operation (SIGFPE) occured! <<<\n" << std::flush;
260			break;
261			case SIGUSR1:
262			std::cerr << ">>> User defined signal 1 (SIGUSR1) received <<<\n" << std::flush;
263			break;
264			case SIGUSR2:
265			std::cerr << ">>> User defined signal 2 (SIGUSR2) received <<<\n" << std::flush;
266			break;
267	senoner	1502	#endif
268	schoenebeck	271	default: { // this should never happen, as we register for the signals we want
269			std::cerr << ">>> FATAL ERROR: Unknown signal received! <<<\n" << std::flush;
270			break;
271			}
272	schoenebeck	9	}
273	schoenebeck	271	signal(iSignal, SIG_DFL); // Reinstall default handler to prevent race conditions
274	schoenebeck	1830	if (bShowStackTrace) {
275			std::cerr << "Showing stack trace...\n" << std::flush;
276			StackTrace();
277			sleep(2);
278			}
279	schoenebeck	271	std::cerr << "Killing LinuxSampler...\n" << std::flush;
280			kill_app(); // Use abort() if we want to generate a core dump.
281	schoenebeck	9	}
282
283	schoenebeck	271	void kill_app() {
284	senoner	1502	#if defined(WIN32)
285			// FIXME: do we need to do anything at this point under WIN32 ? is exit(0) ok ?
286			exit(0);
287			#else
288	wylder	816	kill(main_pid, SIGKILL);
289	senoner	1502	#endif
290	schoenebeck	271	}
291
292	senkov	325	void parse_options(int argc, char **argv) {
293	schoenebeck	9	int res;
294			int option_index = 0;
295			static struct option long_options[] =
296			{
297			{"help",0,0,0},
298	senkov	325	{"version",0,0,0},
299			{"profile",0,0,0},
300			{"no-tune",0,0,0},
301	schoenebeck	420	{"statistics",0,0,0},
302	iliev	1208	{"instruments-db-location",1,0,0},
303	iliev	1187	{"create-instruments-db",1,0,0},
304	senkov	667	{"lscp-addr",1,0,0},
305			{"lscp-port",1,0,0},
306	schoenebeck	1830	{"stacktrace",0,0,0},
307	schoenebeck	9	{0,0,0,0}
308			};
309
310			while (true) {
311	schoenebeck	361	/*
312			Stephane Letz : letz@grame.fr
313			getopt_long_only does not exist on OSX : replaced by getopt_long for now.
314			*/
315			res = getopt_long(argc, argv, "", long_options, &option_index);
316	schoenebeck	9	if(res == -1) break;
317			if (res == 0) {
318			switch(option_index) {
319	senkov	325	case 0: // --help
320			printf("usage: linuxsampler [OPTIONS]\n\n");
321	iliev	1208	printf("--help prints this message\n");
322			printf("--version prints version information\n");
323			printf("--profile profile synthesis algorithms\n");
324			printf("--no-tune disable assembly optimization\n");
325			printf("--statistics periodically prints statistics\n");
326			printf("--lscp-addr set LSCP address (default: any)\n");
327			printf("--lscp-port set LSCP port (default: 8888)\n");
328			printf("--create-instruments-db creates an instruments DB\n");
329			printf("--instruments-db-location specifies the instruments DB file\n");
330	schoenebeck	1830	printf("--stacktrace automatically shows stacktrace if crashes\n");
331			printf(" (broken on most systems at the moment)\n");
332	senkov	325	exit(EXIT_SUCCESS);
333	schoenebeck	9	break;
334	senkov	325	case 1: // --version
335	schoenebeck	328	printf("LinuxSampler %s\n", VERSION);
336			exit(EXIT_SUCCESS);
337	schoenebeck	9	break;
338	senkov	325	case 2: // --profile
339	persson	425	profile = true;
340	schoenebeck	20	break;
341	senkov	325	case 3: // --no-tune
342	persson	425	tune = false;
343	schoenebeck	9	break;
344	schoenebeck	420	case 4: // --statistics
345			bPrintStatistics = true;
346			break;
347	iliev	1208	case 5: // --instruments-db-location
348	iliev	1187	#if HAVE_SQLITE3
349			try {
350			if (optarg) {
351	iliev	1208	struct stat statBuf;
352			int res = stat(optarg, &statBuf);
353
354			if (res) {
355			std::stringstream ss;
356	schoenebeck	1364	ss << "Failed to stat `" << optarg << "`: " << strerror(errno);
357	iliev	1208	throw Exception(ss.str());
358			}
359
360			if (!S_ISREG(statBuf.st_mode)) {
361			std::stringstream ss;
362			ss << "`" << optarg << "` is not a regular file";
363			throw Exception(ss.str());
364			}
365
366			InstrumentsDb::GetInstrumentsDb()->SetDbFile(String(optarg));
367			}
368			} catch(Exception e) {
369	schoenebeck	1364	std::cerr << "Could not open instruments DB file: "
370			<< e.Message() << std::endl;
371			exit(EXIT_FAILURE);
372	iliev	1208	}
373	schoenebeck	1364	break;
374	iliev	1208	#else
375			std::cerr << "LinuxSampler was not build with ";
376	schoenebeck	1364	std::cerr << "instruments database support!\n";
377			exit(EXIT_FAILURE);
378			break;
379			#endif
380	iliev	1208	case 6: // --create-instruments-db
381			#if HAVE_SQLITE3
382			try {
383			if (optarg) {
384	iliev	1187	std::cout << "Creating instruments database..." << std::endl;
385			InstrumentsDb::CreateInstrumentsDb(String(optarg));
386			std::cout << "Done" << std::endl;
387			}
388			} catch(Exception e) {
389			std::cerr << e.Message() << std::endl;
390			exit(EXIT_FAILURE);
391			return;
392			}
393
394			exit(EXIT_SUCCESS);
395			return;
396			#else
397			std::cerr << "Failed to create the database. LinuxSampler was ";
398	schoenebeck	1364	std::cerr << "not build with instruments database support!\n";
399	iliev	1187	exit(EXIT_FAILURE);
400			return;
401	schoenebeck	1364	#endif
402	schoenebeck	1830	case 7: { // --lscp-addr
403	iliev	1187	struct in_addr addr;
404			if (inet_aton(optarg, &addr) == 0)
405			printf("WARNING: Failed to parse lscp-addr argument, ignoring!\n");
406			else
407			lscp_addr = addr.s_addr;
408	senkov	667	break;
409	schoenebeck	1830	}
410			case 8: {// --lscp-port
411	iliev	1187	long unsigned int port = 0;
412			if ((sscanf(optarg, "%u", &port) != 1) \|\| (port == 0) \|\| (port > 65535))
413			printf("WARNING: Failed to parse lscp-port argument, ignoring!\n");
414			else
415			lscp_port = htons(port);
416	senkov	667	break;
417	schoenebeck	1830	}
418			case 9: // --stacktrace
419			bShowStackTrace = true;
420			break;
421	schoenebeck	9	}
422			}
423			}
424	senkov	325	}