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att
GitHub Repository: att/ast
 Path: blob/master/src/cmd/tests/vmalloc/tresize.c
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/***********************************************************************

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*                                                                      *

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*               This software is part of the ast package               *

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*          Copyright (c) 1999-2011 AT&T Intellectual Property          *

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*                      and is licensed under the                       *

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*                 Eclipse Public License, Version 1.0                  *

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*                    by AT&T Intellectual Property                     *

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*                                                                      *

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*                A copy of the License is available at                 *

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*          http://www.eclipse.org/org/documents/epl-v10.html           *

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*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *

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*                                                                      *

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*              Information and Software Systems Research               *

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*                            AT&T Research                             *

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*                           Florham Park NJ                            *

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*                                                                      *

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*                 Glenn Fowler <[email protected]>                  *

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*                                                                      *

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***********************************************************************/

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#include	"vmtest.h"

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/* This tests the sequential placement of blocks by Vmbest

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** and its effect on vmresize(). This test should be looked

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** at every time the allocation algorithm in Vmbest changes.

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*/

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tmain()

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{

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	Vmalloc_t	*vm;

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	Void_t		*dt[10];

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	int		i;

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	if(!(vm = vmopen(Vmdcsbrk, Vmbest, 0)) )

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		terror("Couldn't open region");

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	if(!(dt[0] = vmalloc(vm, 32)) )

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		terror("vmalloc failed1");

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	if(!(dt[1] = vmalloc(vm, 32)) )

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		terror("vmalloc failed2");

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	if(!(dt[2] = vmalloc(vm, 32)) )

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		terror("vmalloc failed3");

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	vmfree(vm,dt[1]);

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	vmfree(vm,dt[2]);

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	if(vmresize(vm, dt[0], 60, 1) != dt[0])

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		terror("bestresize did not extend correctly");

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	if(vmresize(vm, dt[0], 32, 1) != dt[0])

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		terror("bestresize did not reduce correctly2");

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	if(!(dt[1] = vmalloc(vm, 16)) )

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		terror("vmalloc failed4");

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	if(!(dt[2] = vmalloc(vm, 16)) )

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		terror("vmalloc failed5");

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	if(!(dt[3] = vmalloc(vm, 24)) )

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		terror("vmalloc failed6");

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	if(!(dt[4] = vmalloc(vm, 32)) )

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		terror("vmalloc failed7");

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	if(!(dt[5] = vmalloc(vm, 40)) )

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		terror("vmalloc failed8");

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	vmfree(vm,dt[2]);

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	vmfree(vm,dt[3]);

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	vmfree(vm,dt[4]);

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	vmfree(vm,dt[5]);

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	if(vmresize(vm,dt[1],80,0) != dt[1])

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		terror("vmresize failed");

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	vmfree(vm,dt[1]);

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	if(vmresize(vm, dt[0], 120, 1) != dt[0])

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		terror("vmresize did not extend correctly3");

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	texit(0);

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}

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