155 lines
4.0 KiB
C
155 lines
4.0 KiB
C
/*
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* msvcrt.dll misc functions
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*
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* Copyright 2000 Jon Griffiths
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include <stdlib.h>
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#include "msvcrt.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
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/*********************************************************************
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* _beep (MSVCRT.@)
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*/
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void _beep( unsigned int freq, unsigned int duration)
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{
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TRACE(":Freq %d, Duration %d\n",freq,duration);
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Beep(freq, duration);
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}
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/*********************************************************************
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* rand (MSVCRT.@)
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*/
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int MSVCRT_rand()
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{
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return (rand() & 0x7fff);
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}
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/*********************************************************************
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* _sleep (MSVCRT.@)
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*/
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void _sleep(unsigned long timeout)
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{
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TRACE("_sleep for %ld milliseconds\n",timeout);
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Sleep((timeout)?timeout:1);
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}
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/*********************************************************************
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* _lfind (MSVCRT.@)
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*/
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void* _lfind(const void* match, const void* start,
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unsigned int* array_size, unsigned int elem_size,
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int (*cf)(const void*,const void*) )
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{
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unsigned int size = *array_size;
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if (size)
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do
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{
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if (cf(match, start) == 0)
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return (void *)start; /* found */
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start = (char*)start + elem_size;
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} while (--size);
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return NULL;
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}
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/*********************************************************************
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* _lsearch (MSVCRT.@)
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*/
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void* _lsearch(const void* match, void* start,
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unsigned int* array_size, unsigned int elem_size,
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int (*cf)(const void*,const void*) )
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{
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unsigned int size = *array_size;
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if (size)
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do
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{
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if (cf(match, start) == 0)
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return start; /* found */
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start = (char*)start + elem_size;
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} while (--size);
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/* not found, add to end */
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memcpy(start, match, elem_size);
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array_size[0]++;
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return start;
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}
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/*********************************************************************
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* _chkesp (MSVCRT.@)
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*
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* Trap to a debugger if the value of the stack pointer has changed.
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*
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* PARAMS
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* None.
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*
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* RETURNS
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* Does not return.
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*
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* NOTES
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* This function is available for iX86 only.
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*
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* When VC++ generates debug code, it stores the value of the stack pointer
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* before calling any external function, and checks the value following
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* the call. It then calls this function, which will trap if the values are
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* not the same. Usually this means that the prototype used to call
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* the function is incorrect. It can also mean that the .spec entry has
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* the wrong calling convention or parameters.
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*/
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#ifdef __i386__
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# ifdef __GNUC__
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__ASM_GLOBAL_FUNC(_chkesp,
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"jnz 1f\n\t"
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"ret\n"
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"1:\tpushl %ebp\n\t"
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"movl %esp,%ebp\n\t"
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"pushl %eax\n\t"
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"pushl %ecx\n\t"
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"pushl %edx\n\t"
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"call " __ASM_NAME("MSVCRT_chkesp_fail") "\n\t"
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"popl %edx\n\t"
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"popl %ecx\n\t"
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"popl %eax\n\t"
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"popl %ebp\n\t"
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"ret");
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void MSVCRT_chkesp_fail(void)
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{
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ERR("Stack pointer incorrect after last function call - Bad prototype/spec entry?\n");
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DebugBreak();
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}
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# else /* __GNUC__ */
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/**********************************************************************/
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void _chkesp(void)
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{
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}
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# endif /* __GNUC__ */
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#endif /* __i386__ */
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