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28 lines
711 B
C
28 lines
711 B
C
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/*
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** Buffer handling.
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** Copyright (C) 2005-2013 Mike Pall. See Copyright Notice in luajit.h
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*/
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#ifndef _LJ_BUF_H
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#define _LJ_BUF_H
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#include "lj_obj.h"
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/* Resizable string buffers. Struct definition in lj_obj.h. */
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LJ_FUNC char *lj_buf_tmp(lua_State *L, MSize sz);
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LJ_FUNC void lj_buf_grow(lua_State *L, SBuf *sb, MSize sz);
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LJ_FUNC void lj_buf_shrink(lua_State *L, SBuf *sb);
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#define lj_buf_init(sb) ((sb)->buf = NULL, (sb)->sz = 0)
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#define lj_buf_reset(sb) ((sb)->n = 0)
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#define lj_buf_free(g, sb) lj_mem_free(g, (void *)(sb)->buf, (sb)->sz)
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static LJ_AINLINE char *lj_buf_need(lua_State *L, SBuf *sb, MSize sz)
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{
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if (LJ_UNLIKELY(sz > sb->sz))
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lj_buf_grow(L, sb, sz);
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return sb->buf;
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}
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#endif
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