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0.47.8
by Scott Kitterman
Import upstream version 0.98+dfsg |
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/* 7zBuf2.c -- Byte Buffer
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2008-10-04 : Igor Pavlov : Public domain */
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#include <string.h> |
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#include "7zBuf.h" |
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void DynBuf_Construct(CDynBuf *p) |
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{
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p->data = 0; |
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p->size = 0; |
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p->pos = 0; |
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}
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void DynBuf_SeekToBeg(CDynBuf *p) |
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{
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p->pos = 0; |
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}
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int DynBuf_Write(CDynBuf *p, const Byte *buf, size_t size, ISzAlloc *alloc) |
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{
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if (size > p->size - p->pos) |
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{
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size_t newSize = p->pos + size; |
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Byte *data; |
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newSize += newSize / 4; |
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data = (Byte *)alloc->Alloc(alloc, newSize); |
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if (data == 0) |
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return 0; |
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p->size = newSize; |
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memcpy(data, p->data, p->pos); |
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alloc->Free(alloc, p->data); |
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p->data = data; |
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}
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memcpy(p->data + p->pos, buf, size); |
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p->pos += size; |
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return 1; |
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}
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void DynBuf_Free(CDynBuf *p, ISzAlloc *alloc) |
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{
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alloc->Free(alloc, p->data); |
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p->data = 0; |
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p->size = 0; |
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p->pos = 0; |
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}
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