67 lines
1.5 KiB
C
67 lines
1.5 KiB
C
/****************************************************************
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* *
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* Copyright 2001, 2009 Fidelity Information Services, Inc *
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* *
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* This source code contains the intellectual property *
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* of its copyright holder(s), and is made available *
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* under a license. If you do not know the terms of *
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* the license, please stop and do not read further. *
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* *
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****************************************************************/
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#include "mdef.h"
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#include "gtm_string.h"
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#include "compiler.h"
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#include "mmemory.h"
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#include "min_max.h"
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#include "stringpool.h"
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GBLREF mvar *mvartab;
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GBLREF mvax *mvaxtab, *mvaxtab_end;
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GBLREF int mvmax;
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mvar *get_mvaddr(mident *var_name)
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{
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mvar **p;
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mvax *px;
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mstr vname;
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int x;
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p = &mvartab;
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while (*p)
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{
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MIDENT_CMP(&(*p)->mvname, var_name, x);
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if (x < 0)
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p = &((*p)->rson);
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else if (x > 0)
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p = &((*p)->lson);
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else
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return *p;
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}
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/* variable doesn't exist - create a new mvar in mvartab */
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vname.len = var_name->len;
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vname.addr = var_name->addr;
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s2pool_align(&vname);
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*p = (mvar *)mcalloc(SIZEOF(mvar));
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(*p)->mvname.len = vname.len;
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(*p)->mvname.addr = vname.addr;
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(*p)->mvidx = mvmax++;
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(*p)->lson = (*p)->rson = NULL;
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(*p)->last_fetch = NULL;
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px = (mvax *)mcalloc(SIZEOF(mvax));
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px->var = *p;
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px->last = px->next = 0;
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px->mvidx = (*p)->mvidx;
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if (mvaxtab_end)
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{
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px->last = mvaxtab_end;
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mvaxtab_end->next = px;
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mvaxtab_end = px;
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}
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else
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mvaxtab = mvaxtab_end = px;
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return *p;
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}
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