/[svn]/linuxsampler/trunk/src/network/lscpserver.cpp
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Diff of /linuxsampler/trunk/src/network/lscpserver.cpp

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revision 1481 by senoner, Wed Nov 14 23:42:15 2007 UTC revision 1537 by senoner, Mon Dec 3 18:30:47 2007 UTC
# Line 26  Line 26 
26  #include "lscpevent.h"  #include "lscpevent.h"
27    
28  #if defined(WIN32)  #if defined(WIN32)
29    #include <windows.h>
30  #else  #else
31  #include <fcntl.h>  #include <fcntl.h>
32  #endif  #endif
# Line 367  int LSCPServer::Main() { Line 368  int LSCPServer::Main() {
368                    std::cerr << "LSCPServer: ioctlsocket: set FIONBIO failed. Error " << WSAGetLastError() << std::endl;                    std::cerr << "LSCPServer: ioctlsocket: set FIONBIO failed. Error " << WSAGetLastError() << std::endl;
369                    exit(EXIT_FAILURE);                    exit(EXIT_FAILURE);
370                  }                  }
371          #else                    #else
372                  if (fcntl(socket, F_SETFL, O_NONBLOCK)) {                  if (fcntl(socket, F_SETFL, O_NONBLOCK)) {
373                          std::cerr << "LSCPServer: F_SETFL O_NONBLOCK failed." << std::endl;                          std::cerr << "LSCPServer: F_SETFL O_NONBLOCK failed." << std::endl;
374                          exit(EXIT_FAILURE);                          exit(EXIT_FAILURE);
# Line 538  bool LSCPServer::GetLSCPCommand( std::ve Line 539  bool LSCPServer::GetLSCPCommand( std::ve
539                      int wsa_lasterror = WSAGetLastError();                      int wsa_lasterror = WSAGetLastError();
540                          if (wsa_lasterror == WSAEWOULDBLOCK) //Would block, try again later.                          if (wsa_lasterror == WSAEWOULDBLOCK) //Would block, try again later.
541                                  return false;                                  return false;
542                          dmsg(2,("LSCPScanner: Socket error after recv() Error %d.\n", wsa_lasterror));                            dmsg(2,("LSCPScanner: Socket error after recv() Error %d.\n", wsa_lasterror));
543                          CloseConnection(iter);                          CloseConnection(iter);
544                          break;                          break;
545                  }                  }
# Line 2383  String LSCPServer::SetGlobalVolume(doubl Line 2384  String LSCPServer::SetGlobalVolume(doubl
2384      return result.Produce();      return result.Produce();
2385  }  }
2386    
2387    String LSCPServer::GetFileInstruments(String Filename) {
2388        dmsg(2,("LSCPServer: GetFileInstruments(String Filename=%s)\n",Filename.c_str()));
2389        LSCPResultSet result;
2390        try {
2391            VerifyFile(Filename);
2392        } catch (Exception e) {
2393            result.Error(e);
2394            return result.Produce();
2395        }
2396        // try to find a sampler engine that can handle the file
2397        bool bFound = false;
2398        std::vector<String> engineTypes = EngineFactory::AvailableEngineTypes();
2399        for (int i = 0; !bFound && i < engineTypes.size(); i++) {
2400            Engine* pEngine = NULL;
2401            try {
2402                pEngine = EngineFactory::Create(engineTypes[i]);
2403                if (!pEngine) throw Exception("Internal error: could not create '" + engineTypes[i] + "' engine");
2404                InstrumentManager* pManager = pEngine->GetInstrumentManager();
2405                if (pManager) {
2406                    std::vector<InstrumentManager::instrument_id_t> IDs =
2407                        pManager->GetInstrumentFileContent(Filename);
2408                    // return the amount of instruments in the file
2409                    result.Add(IDs.size());
2410                    // no more need to ask other engine types
2411                    bFound = true;
2412                } else dmsg(1,("Warning: engine '%s' does not provide an instrument manager\n", engineTypes[i].c_str()));
2413            } catch (Exception e) {
2414                // NOOP, as exception is thrown if engine doesn't support file
2415            }
2416            if (pEngine) EngineFactory::Destroy(pEngine);
2417        }
2418    
2419        if (!bFound) result.Error("Unknown file format");
2420        return result.Produce();
2421    }
2422    
2423    String LSCPServer::ListFileInstruments(String Filename) {
2424        dmsg(2,("LSCPServer: ListFileInstruments(String Filename=%s)\n",Filename.c_str()));
2425        LSCPResultSet result;
2426        try {
2427            VerifyFile(Filename);
2428        } catch (Exception e) {
2429            result.Error(e);
2430            return result.Produce();
2431        }
2432        // try to find a sampler engine that can handle the file
2433        bool bFound = false;
2434        std::vector<String> engineTypes = EngineFactory::AvailableEngineTypes();
2435        for (int i = 0; !bFound && i < engineTypes.size(); i++) {
2436            Engine* pEngine = NULL;
2437            try {
2438                pEngine = EngineFactory::Create(engineTypes[i]);
2439                if (!pEngine) throw Exception("Internal error: could not create '" + engineTypes[i] + "' engine");
2440                InstrumentManager* pManager = pEngine->GetInstrumentManager();
2441                if (pManager) {
2442                    std::vector<InstrumentManager::instrument_id_t> IDs =
2443                        pManager->GetInstrumentFileContent(Filename);
2444                    // return a list of IDs of the instruments in the file
2445                    String s;
2446                    for (int j = 0; j < IDs.size(); j++) {
2447                        if (s.size()) s += ",";
2448                        s += ToString(IDs[j].Index);
2449                    }
2450                    result.Add(s);
2451                    // no more need to ask other engine types
2452                    bFound = true;
2453                } else dmsg(1,("Warning: engine '%s' does not provide an instrument manager\n", engineTypes[i].c_str()));
2454            } catch (Exception e) {
2455                // NOOP, as exception is thrown if engine doesn't support file
2456            }
2457            if (pEngine) EngineFactory::Destroy(pEngine);
2458        }
2459    
2460        if (!bFound) result.Error("Unknown file format");
2461        return result.Produce();
2462    }
2463    
2464    String LSCPServer::GetFileInstrumentInfo(String Filename, uint InstrumentID) {
2465        dmsg(2,("LSCPServer: GetFileInstrumentInfo(String Filename=%s, InstrumentID=%d)\n",Filename.c_str(),InstrumentID));
2466        LSCPResultSet result;
2467        try {
2468            VerifyFile(Filename);
2469        } catch (Exception e) {
2470            result.Error(e);
2471            return result.Produce();
2472        }
2473        InstrumentManager::instrument_id_t id;
2474        id.FileName = Filename;
2475        id.Index    = InstrumentID;
2476        // try to find a sampler engine that can handle the file
2477        bool bFound = false;
2478        bool bFatalErr = false;
2479        std::vector<String> engineTypes = EngineFactory::AvailableEngineTypes();
2480        for (int i = 0; !bFound && !bFatalErr && i < engineTypes.size(); i++) {
2481            Engine* pEngine = NULL;
2482            try {
2483                pEngine = EngineFactory::Create(engineTypes[i]);
2484                if (!pEngine) throw Exception("Internal error: could not create '" + engineTypes[i] + "' engine");
2485                InstrumentManager* pManager = pEngine->GetInstrumentManager();
2486                if (pManager) {
2487                    // check if the instrument index is valid
2488                    // FIXME: this won't work if an engine only supports parts of the instrument file
2489                    std::vector<InstrumentManager::instrument_id_t> IDs =
2490                        pManager->GetInstrumentFileContent(Filename);
2491                    if (std::find(IDs.begin(), IDs.end(), id) == IDs.end()) {
2492                        std::stringstream ss;
2493                        ss << "Invalid instrument index " << InstrumentID << " for instrument file '" << Filename << "'";
2494                        bFatalErr = true;
2495                        throw Exception(ss.str());
2496                    }
2497                    // get the info of the requested instrument
2498                    InstrumentManager::instrument_info_t info =
2499                        pManager->GetInstrumentInfo(id);
2500                    // return detailed informations about the file
2501                    result.Add("NAME", info.InstrumentName);
2502                    result.Add("FORMAT_FAMILY", engineTypes[i]);
2503                    result.Add("FORMAT_VERSION", info.FormatVersion);
2504                    result.Add("PRODUCT", info.Product);
2505                    result.Add("ARTISTS", info.Artists);
2506                    // no more need to ask other engine types
2507                    bFound = true;
2508                } else dmsg(1,("Warning: engine '%s' does not provide an instrument manager\n", engineTypes[i].c_str()));
2509            } catch (Exception e) {
2510                // usually NOOP, as exception is thrown if engine doesn't support file
2511                if (bFatalErr) result.Error(e);
2512            }
2513            if (pEngine) EngineFactory::Destroy(pEngine);
2514        }
2515    
2516        if (!bFound && !bFatalErr) result.Error("Unknown file format");
2517        return result.Produce();
2518    }
2519    
2520    void LSCPServer::VerifyFile(String Filename) {
2521        #if WIN32
2522        WIN32_FIND_DATA win32FileAttributeData;
2523        BOOL res = GetFileAttributesEx( Filename.c_str(), GetFileExInfoStandard, &win32FileAttributeData );
2524        if (!res) {
2525            std::stringstream ss;
2526            ss << "File does not exist, GetFileAttributesEx failed `" << Filename << "`: Error " << GetLastError();
2527            throw Exception(ss.str());
2528        }
2529        if ( win32FileAttributeData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ) {
2530            throw Exception("Directory is specified");
2531        }
2532        #else    
2533        struct stat statBuf;
2534        int res = stat(Filename.c_str(), &statBuf);
2535        if (res) {
2536            std::stringstream ss;
2537            ss << "Fail to stat `" << Filename << "`: " << strerror(errno);
2538            throw Exception(ss.str());
2539        }
2540    
2541        if (S_ISDIR(statBuf.st_mode)) {
2542            throw Exception("Directory is specified");
2543        }
2544        #endif
2545    }
2546    
2547  /**  /**
2548   * Will be called by the parser to subscribe a client (frontend) on the   * Will be called by the parser to subscribe a client (frontend) on the
2549   * server for receiving event messages.   * server for receiving event messages.
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