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/* $Id: ctxt_ss.c,v 1.1 2001/04/12 00:33:53 skaus Exp $
Scan status from context
Assumes that the entries are in "init" state!!
*/
#include "../config.h"
#include <assert.h>
#include <ctype.h>
#include <environ.h>
#include "../include/context.h"
#pragma argsused
static int scan(void *arg, word segm, word ofs)
{ Context_Tag tag;
ctxt_info_t *info;
assert(segm);
assert(ofs != (word)-1);
redo:
if((tag = peekb(segm, ofs), ctxtIsInfoTag(tag))) {
info = &CTXT_INFO_STRUCT(tag);
if(peekb(segm, ofs + 1) == '=' && peekb(segm, ofs + 4) == 0) {
/* status entry */
info->c_sizemax = peekw(segm, ofs + 2) & ~0x8001;
} else { /* normal entry */
char far *p = MK_FP(segm, ofs + 1);
unsigned num;
for(num = 0; isxdigit(*p); ++p) {
num <<= 8;
if(isdigit(*p))
num |= *p & 0xf;
else {
assert(islower(*p));
num |= *p - 'a' + 10;
}
}
if(*p == '=') {
info->c_sizecur += env_varlen(segm, ofs);
if(num < info->c_nummin)
info->c_nummin = num;
if(num > info->c_nummax)
info->c_nummax = num;
} else {
/* Invalid entry -> remove to make room for useful stuff */
env_subVarOffset(segm, ofs);
goto redo;
}
}
} else if(tag > ' ') { /* Alias */
CTXT_INFO(CTXT_TAG_ALIAS, sizecur) += env_varlen(segm ,ofs);
}
return 0; /* proceed */
}
void ctxtScanStatus(void)
{
assert(ctxt);
env_forAll(ctxt, scan, 0);
}
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