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118 lines
4.1 KiB
C
118 lines
4.1 KiB
C
#ifndef PA_TRACE_H
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#define PA_TRACE_H
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/*
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* $Id: pa_trace.h 1812 2012-02-14 09:32:57Z robiwan $
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* Portable Audio I/O Library Trace Facility
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* Store trace information in real-time for later printing.
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*
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* Based on the Open Source API proposed by Ross Bencina
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* Copyright (c) 1999-2000 Phil Burk
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files
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* (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/*
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* The text above constitutes the entire PortAudio license; however,
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* the PortAudio community also makes the following non-binding requests:
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*
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* Any person wishing to distribute modifications to the Software is
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* requested to send the modifications to the original developer so that
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* they can be incorporated into the canonical version. It is also
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* requested that these non-binding requests be included along with the
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* license above.
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*/
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/** @file
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@ingroup common_src
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@brief Real-time safe event trace logging facility for debugging.
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Allows data to be logged to a fixed size trace buffer in a real-time
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execution context (such as at interrupt time). Each log entry consists
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of a message comprising a string pointer and an int. The trace buffer
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may be dumped to stdout later.
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This facility is only active if PA_TRACE_REALTIME_EVENTS is set to 1,
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otherwise the trace functions expand to no-ops.
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@fn PaUtil_ResetTraceMessages
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@brief Clear the trace buffer.
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@fn PaUtil_AddTraceMessage
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@brief Add a message to the trace buffer. A message consists of string and an int.
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@param msg The string pointer must remain valid until PaUtil_DumpTraceMessages
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is called. As a result, usually only string literals should be passed as
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the msg parameter.
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@fn PaUtil_DumpTraceMessages
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@brief Print all messages in the trace buffer to stdout and clear the trace buffer.
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*/
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#ifndef PA_TRACE_REALTIME_EVENTS
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#define PA_TRACE_REALTIME_EVENTS (0) /**< Set to 1 to enable logging using the trace functions defined below */
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#endif
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#ifndef PA_MAX_TRACE_RECORDS
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#define PA_MAX_TRACE_RECORDS (2048) /**< Maximum number of records stored in trace buffer */
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#endif
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#ifdef __cplusplus
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extern "C"
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{
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#endif /* __cplusplus */
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#if PA_TRACE_REALTIME_EVENTS
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void PaUtil_ResetTraceMessages();
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void PaUtil_AddTraceMessage( const char *msg, int data );
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void PaUtil_DumpTraceMessages();
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/* Alternative interface */
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typedef void* LogHandle;
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int PaUtil_InitializeHighSpeedLog(LogHandle* phLog, unsigned maxSizeInBytes);
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void PaUtil_ResetHighSpeedLogTimeRef(LogHandle hLog);
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int PaUtil_AddHighSpeedLogMessage(LogHandle hLog, const char* fmt, ...);
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void PaUtil_DumpHighSpeedLog(LogHandle hLog, const char* fileName);
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void PaUtil_DiscardHighSpeedLog(LogHandle hLog);
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#else
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#define PaUtil_ResetTraceMessages() /* noop */
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#define PaUtil_AddTraceMessage(msg,data) /* noop */
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#define PaUtil_DumpTraceMessages() /* noop */
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#define PaUtil_InitializeHighSpeedLog(phLog, maxSizeInBytes) (0)
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#define PaUtil_ResetHighSpeedLogTimeRef(hLog)
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#define PaUtil_AddHighSpeedLogMessage(...) (0)
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#define PaUtil_DumpHighSpeedLog(hLog, fileName)
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#define PaUtil_DiscardHighSpeedLog(hLog)
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#endif
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* PA_TRACE_H */
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