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98 lines
3.2 KiB
98 lines
3.2 KiB
/* Copyright (C) 2007 Jean-Marc Valin |
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File: os_support.h |
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This is the (tiny) OS abstraction layer. Aside from math.h, this is the |
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only place where system headers are allowed. |
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Redistribution and use in source and binary forms, with or without |
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modification, are permitted provided that the following conditions are |
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met: |
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1. Redistributions of source code must retain the above copyright notice, |
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this list of conditions and the following disclaimer. |
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2. Redistributions in binary form must reproduce the above copyright |
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notice, this list of conditions and the following disclaimer in the |
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documentation and/or other materials provided with the distribution. |
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, |
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#ifndef OS_SUPPORT_H |
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#define OS_SUPPORT_H |
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#ifdef CUSTOM_SUPPORT |
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# include "custom_support.h" |
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#endif |
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#include "opus_types.h" |
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#include "opus_defines.h" |
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#include <string.h> |
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#include <stdlib.h> |
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/** Opus wrapper for malloc(). To do your own dynamic allocation replace this function, opus_realloc, and opus_free */ |
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#ifndef OVERRIDE_OPUS_ALLOC |
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static OPUS_INLINE void *opus_alloc (size_t size) |
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{ |
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return malloc(size); |
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} |
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#endif |
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#ifndef OVERRIDE_OPUS_REALLOC |
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static OPUS_INLINE void *opus_realloc (void *ptr, size_t size) |
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{ |
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return realloc(ptr, size); |
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} |
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#endif |
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/** Used only for non-threadsafe pseudostack. |
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If desired, this can always return the same area of memory rather than allocating a new one every time. */ |
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#ifndef OVERRIDE_OPUS_ALLOC_SCRATCH |
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static OPUS_INLINE void *opus_alloc_scratch (size_t size) |
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{ |
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/* Scratch space doesn't need to be cleared */ |
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return opus_alloc(size); |
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} |
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#endif |
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/** Opus wrapper for free(). To do your own dynamic allocation replace this function, opus_realloc, and opus_free */ |
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#ifndef OVERRIDE_OPUS_FREE |
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static OPUS_INLINE void opus_free (void *ptr) |
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{ |
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free(ptr); |
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} |
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#endif |
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/** Copy n elements from src to dst. The 0* term provides compile-time type checking */ |
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#ifndef OVERRIDE_OPUS_COPY |
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#define OPUS_COPY(dst, src, n) (memcpy((dst), (src), (n)*sizeof(*(dst)) + 0*((dst)-(src)) )) |
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#endif |
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/** Copy n elements from src to dst, allowing overlapping regions. The 0* term |
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provides compile-time type checking */ |
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#ifndef OVERRIDE_OPUS_MOVE |
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#define OPUS_MOVE(dst, src, n) (memmove((dst), (src), (n)*sizeof(*(dst)) + 0*((dst)-(src)) )) |
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#endif |
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/** Set n elements of dst to zero */ |
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#ifndef OVERRIDE_OPUS_CLEAR |
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#define OPUS_CLEAR(dst, n) (memset((dst), 0, (n)*sizeof(*(dst)))) |
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#endif |
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/*#ifdef __GNUC__ |
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#pragma GCC poison printf sprintf |
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#pragma GCC poison malloc free realloc calloc |
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#endif*/ |
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#endif /* OS_SUPPORT_H */
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