コード例 #1
0
ファイル: memory.c プロジェクト: TijmenW/FreeDOS
int cmd_memory(char *param)
{
	displayString(TEXT_MEMORY_ENVIRONMENT
		, mcb_length(env_glbSeg), env_freeCount(env_glbSeg));
	displayString(TEXT_MEMORY_CONTEXT
		, mcb_length(ctxt), env_freeCount(ctxt));
	displayTag(TEXT_MEMORY_CTXT_ALIAS, CTXT_TAG_ALIAS);
	displayTag(TEXT_MEMORY_CTXT_HISTORY, CTXT_TAG_HISTORY);
	displayTag(TEXT_MEMORY_CTXT_DIRSTACK, CTXT_TAG_DIRSTACK);
	displayTag1(TEXT_MEMORY_CTXT_LASTDIR, CTXT_TAG_LASTDIR);
/*	displayTag1(TEXT_MEMORY_CTXT_BATCH, CTXT_TAG_BATCH);
	not used, yet -- 2001/06/11 ska*/
	displayTag1(TEXT_MEMORY_CTXT_SWAPINFO, CTXT_TAG_SWAPINFO);
	displayString(TEXT_MEMORY_HEAP, (unsigned long)coreleft());

	return 0;
}
コード例 #2
0
ファイル: memory.c プロジェクト: TijmenW/FreeDOS
int cmd_memory(char *param)
{
	displayString(TEXT_MEMORY_ENVIRONMENT
		, mcb_length(env_glbSeg), env_freeCount(env_glbSeg));
	displayString(TEXT_MEMORY_CONTEXT
		, mcb_length(ctxtSegm), env_freeCount(ctxtSegm));
	displayTag(TEXT_MEMORY_CTXT_ALIAS, CTXT_TAG_ALIAS);
	displayTag(TEXT_MEMORY_CTXT_HISTORY, CTXT_TAG_HISTORY);
	displayTag(TEXT_MEMORY_CTXT_DIRSTACK, CTXT_TAG_DIRSTACK);
	displayTag1(TEXT_MEMORY_CTXT_LASTDIR, CTXT_TAG_LASTDIR);
	displayTag1(TEXT_MEMORY_CTXT_ARG, CTXT_TAG_ARG);
	displayTag1(TEXT_MEMORY_CTXT_SWAPINFO, CTXT_TAG_SWAPINFO);
	displayTag1(TEXT_MEMORY_CTXT_EXEC, CTXT_TAG_EXEC);
	displayTag1(TEXT_MEMORY_CTXT_STRING, CTXT_TAG_STRING);
	displayTag2(TEXT_MEMORY_CTXT_FLAG, CTXT_TAG_FLAG);
	displayTag2(TEXT_MEMORY_CTXT_IVAR, CTXT_TAG_IVAR);
	displayString(TEXT_MEMORY_HEAP, (unsigned long)coreleft(), getFree);
	displaySize(TEXT_MEMORY_DOSMEM, DOSalloc(0, 0x80 | 0x10));

	return 0;
}
コード例 #3
0
ファイル: chgctxt.c プロジェクト: CivilPol/sdcboot
int chgCtxt(const Context_Tag tag, const char * const name, const char * const value)
{	word segm, ofs;
	int newlen;

	assert(name);
	ctxtCheckInfoTag(tag);

	segm = ctxtFromTag(tag);
	assert(segm);

	newlen = value? strlen(name) + strlen(value) + 2: 0;
	if((ofs = env_findVar(segm, name)) != (word)-1)
		newlen -= env_varlen(segm, ofs);

	/* Make sure the context has enough room to add the value to */
	if(newlen > 0) {	/* contents size will grow */
		ctxt_info_t *hinfo, *dinfo;

		/* aliases may not exceed sizemax */
		if(tag == CTXT_TAG_ALIAS) {
			if(CTXT_INFO(CTXT_TAG_ALIAS, sizemax)
			 - CTXT_INFO(CTXT_TAG_ALIAS, sizecur) < newlen) {
				error_alias_out_of_memory();
				return E_NoMem;
			}
		}

		/* Otherwise a removeable entry is removed;
			those are:
				oldest item of history
				oldest item of dirstack */
		hinfo = segm == ctxtFromTag(CTXT_TAG_HISTORY)
			? &CTXT_INFO_STRUCT(CTXT_TAG_HISTORY): 0;
		dinfo = segm == ctxtFromTag(CTXT_TAG_DIRSTACK)
			? &CTXT_INFO_STRUCT(CTXT_TAG_DIRSTACK): 0;
		while(env_freeCount(segm) < newlen) {
			/* There are two structures that can shrink:
				history & dirstack */
			if(hinfo && (hinfo->c_sizecur <= hinfo->c_sizemax
							/* inconsitency of redundant info */
						|| hinfo->c_nummin >= hinfo->c_nummax))
				/* in range -> ignore */
				hinfo = 0;
			if(dinfo && (dinfo->c_sizecur <= dinfo->c_sizemax
							/* inconsitency of redundant info */
						|| dinfo->c_nummin >= dinfo->c_nummax))
				/* in range -> ignore */
				dinfo = 0;
			if(hinfo && dinfo) {		/* Choose one */
				if(weight(hinfo) < weight(dinfo))
					ctxtGet(1, CTXT_TAG_DIRSTACK, ++dinfo->c_nummin, 0);
				else
					ctxtGet(1, CTXT_TAG_HISTORY, ++hinfo->c_nummin, 0);
			} else if(dinfo)
				ctxtGet(1, CTXT_TAG_DIRSTACK, ++dinfo->c_nummin, 0);
			else if(hinfo)
				ctxtGet(1, CTXT_TAG_HISTORY, ++hinfo->c_nummin, 0);
			else { /* no space left */
				error_context_out_of_memory();
				return E_NoMem;
			}
		}
	}

	/* return values 1 and 3 are OK */
	switch(env_change(segm, name, value)) {
	case 2:			/* variable to delete not found <-> no problem */
	case 1: case 3:   /* var replaced | deleted | inserted ==> OK */
		CTXT_INFO(tag, sizecur) += newlen;
		return 0;
	case 0:       /* Cannot insert */
		dprintf(("chgCtxt(): out-of-mem shouldn't occure here!\n"));
		error_context_out_of_memory();
		return E_NoMem;
	default:
		return E_Syntax;
	}

}