pa_util.h

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#ifndef PA_UTIL_H
#define PA_UTIL_H
/*
 * $Id$
 * Portable Audio I/O Library implementation utilities header
 * common implementation utilities and interfaces
 *
 * Based on the Open Source API proposed by Ross Bencina
 * Copyright (c) 1999-2008 Ross Bencina, Phil Burk
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files
 * (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge,
 * publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
/*
 * The text above constitutes the entire PortAudio license; however,
 * the PortAudio community also makes the following non-binding requests:
 *
 * Any person wishing to distribute modifications to the Software is
 * requested to send the modifications to the original developer so that
 * they can be incorporated into the canonical version. It is also
 * requested that these non-binding requests be included along with the
 * license above.
 */
 
#include "portaudio.h"
 
#define PA_STRINGIZE_HELPER(x) #x
#define PA_STRINGIZE(x) PA_STRINGIZE_HELPER(x)
 
 
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
 
 
struct PaUtilHostApiRepresentation;
 
 
PaError PaUtil_GetHostApiRepresentation( struct PaUtilHostApiRepresentation **hostApi,
        PaHostApiTypeId type );
 
 
PaError PaUtil_DeviceIndexToHostApiDeviceIndex(
        PaDeviceIndex *hostApiDevice, PaDeviceIndex device,
        struct PaUtilHostApiRepresentation *hostApi );
 
 
void PaUtil_SetLastHostErrorInfo( PaHostApiTypeId hostApiType, long errorCode,
        const char *errorText );
 
 
 
/* the following functions are implemented in a platform platform specific
 .c file
*/
 
void *PaUtil_AllocateZeroInitializedMemory( long size );
 
 
void PaUtil_FreeMemory( void *block );
 
 
int PaUtil_CountCurrentlyAllocatedBlocks( void );
 
 
void PaUtil_InitializeClock( void );
 
 
double PaUtil_GetTime( void );
 
 
/* void Pa_Sleep( long msec );  must also be implemented in per-platform .c file */
 
 
 
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* PA_UTIL_H */