CGestalt.h

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//
//  CGestalt.h -- the CSL 4.0 CGestalt (system utility) class specification -- system constants, logging, and utility methods
//  See the copyright notice and acknowledgment of authors in the file COPYRIGHT
//

#ifndef CSL_Gestalt_H
#define CSL_Gestalt_H

#include "CSL_Types.h"      // The system default values are defined there

#include <stdarg.h>         // for va_arg, vaList, etc.

namespace csl {

class CGestalt {                        

public:                             // Accessor (getter/setter) methods
    static unsigned frameRate();                    
    static void setFrameRate(unsigned frameRate);

    static unsigned numInChannels();                
    static void setNumInChannels(unsigned numChannels);

    static unsigned numOutChannels();           
    static void setNumOutChannels(unsigned numChannels);

    static unsigned maxBufferFrames();          
    static void setMaxBufferFrames(unsigned numFrames);

    static unsigned blockSize();                    
    static void setBlockSize(unsigned blockSize);

    static unsigned verbosity();                    
    static void setVerbosity(unsigned verbosity);

    static unsigned loggingPeriod();                
    static void setLoggingPeriod(unsigned loggingPeriod);

    static unsigned outPort();                      
    static void setOutPort(unsigned outPort);
    
};


#define SAFE_MALLOC(ptr, type, len)                 \
    (type *) ptr = (type *) malloc(len);                    \
    if ((char *) ptr == NULL)                           \
        throw MemoryError("can't allocate buffer");



#ifdef CSL_ENUMS
typedef enum {                  
    kLogInfo,
    kLogWarning,
    kLogError,
    kLogFatal
} LogLevel;
#else
    #define kLogInfo 0
    #define kLogWarning 1
    #define kLogError 2
    #define kLogFatal 3
    typedef int LogLevel;
#endif


void logMsg(char * format, ...);            // default is kLogInfo severity
void logMsg(LogLevel level, char* format, ...);

// These two are private -- for handling var-args

void vlogMsg(char * format, va_list args);
void vlogMsg(LogLevel level, char * format, va_list args);


void sleepUsec(float dur);      // sleep for dur usec, msec or sec
void sleepMsec(float dur);
void sleepSec(float dur);

float fRand(void);          // answer a random float between 0 and 1

}

#endif

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