view system/System.h @ 489:82ab61fa9223

* Reorganise our sparql queries on the basis that Redland must be
  available, not only optional.  So for anything querying the pool
  of data about plugins, we use a single datastore and model which
  is initialised at the outset by PluginRDFIndexer and then queried
  directly; for anything that "reads from a file" (e.g. loading
  annotations) we query directly using Rasqal, going to the
  datastore when we need additional plugin-related information.

  This may improve performance, but mostly it simplifies the code
  and fixes a serious issue with RDF import in the previous versions
  (namely that multiple sequential RDF imports would end up sharing
  the same RDF data pool!)

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006 Chris Cannam and QMUL.
    
    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.  See the file
    COPYING included with this distribution for more information.
*/

#ifndef _SYSTEM_H_
#define _SYSTEM_H_

#ifdef _WIN32

#include <windows.h>
#include <malloc.h>
#include <process.h>

#define MLOCK(a,b)   1
#define MUNLOCK(a,b) 1
#define MUNLOCK_SAMPLEBLOCK(a) 1
#define MUNLOCKALL() 1

#define DLOPEN(a,b)  LoadLibrary((a).toStdWString().c_str())
#define DLSYM(a,b)   GetProcAddress((HINSTANCE)(a),(b))
#define DLCLOSE(a)   (!FreeLibrary((HINSTANCE)(a)))
#define DLERROR()    ""

#define PLUGIN_GLOB  "*.dll"
#define PATH_SEPARATOR ';'

// The default Vamp plugin path is obtained from a function in the
// Vamp SDK (Vamp::PluginHostAdapter::getPluginPath).

// At the time of writing, at least, the vast majority of LADSPA
// plugins on Windows hosts will have been put there for use in
// Audacity.  It's a bit of a shame that Audacity uses its own Program
// Files directory for plugins that any host may want to use... maybe
// they were just following the example of VSTs, which are usually
// found in Steinberg's Program Files directory.  Anyway, we can
// greatly increase our chances of picking up some LADSPA plugins by
// default if we include the Audacity plugin location as well as an
// (imho) more sensible place.

#define DEFAULT_LADSPA_PATH "%ProgramFiles%\\LADSPA Plugins;%ProgramFiles%\\Audacity\\Plug-Ins"
#define DEFAULT_DSSI_PATH   "%ProgramFiles%\\DSSI Plugins"

#define getpid _getpid

extern "C" {
void usleep(unsigned long usec);
void gettimeofday(struct timeval *p, void *tz);
}

#else

#include <sys/mman.h>
#include <dlfcn.h>

#define MLOCK(a,b)   ::mlock((a),(b))
#define MUNLOCK(a,b) (::munlock((a),(b)) ? (::perror("munlock failed"), 0) : 0)
#define MUNLOCK_SAMPLEBLOCK(a) do { if (!(a).empty()) { const float &b = *(a).begin(); MUNLOCK(&b, (a).capacity() * sizeof(float)); } } while(0);
//#define MLOCK(a,b)   1
//#define MUNLOCK(a,b) 1
//#define MUNLOCK_SAMPLEBLOCK(a) 1

#define DLOPEN(a,b)  dlopen((a).toStdString().c_str(),(b))
#define DLSYM(a,b)   dlsym((a),(b))
#define DLCLOSE(a)   dlclose((a))
#define DLERROR()    dlerror()

#ifdef __APPLE__

#define PLUGIN_GLOB  "*.dylib *.so"
#define PATH_SEPARATOR ':'

#define DEFAULT_LADSPA_PATH "$HOME/Library/Audio/Plug-Ins/LADSPA:/Library/Audio/Plug-Ins/LADSPA"
#define DEFAULT_DSSI_PATH   "$HOME/Library/Audio/Plug-Ins/DSSI:/Library/Audio/Plug-Ins/DSSI"

#define MUNLOCKALL() 1

#else 

#define PLUGIN_GLOB  "*.so"
#define PATH_SEPARATOR ':'

#define DEFAULT_LADSPA_PATH "$HOME/ladspa:$HOME/.ladspa:/usr/local/lib/ladspa:/usr/lib/ladspa"
#define DEFAULT_DSSI_PATH "$HOME/dssi:$HOME/.dssi:/usr/local/lib/dssi:/usr/lib/dssi"

#define MUNLOCKALL() ::munlockall()

#endif /* __APPLE__ */

#endif /* ! _WIN32 */

enum ProcessStatus { ProcessRunning, ProcessNotRunning, UnknownProcessStatus };
extern ProcessStatus GetProcessStatus(int pid);

// Return a vague approximation to the number of free megabytes of real memory.
// Return -1 if unknown.
extern void GetRealMemoryMBAvailable(int &available, int &total);

// Return a vague approximation to the number of free megabytes of disc space
// on the partition containing the given path.  Return -1 if unknown.
extern int GetDiscSpaceMBAvailable(const char *path);

extern void StoreStartupLocale();
extern void RestoreStartupLocale();

#include <cmath>

extern double mod(double x, double y);
extern float modf(float x, float y);

extern double princarg(double a);
extern float princargf(float a);

#endif /* ! _SYSTEM_H_ */