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Files
amiga-clib2/library/unistd_timer.c
Olaf Barthel ebf5d63bc6 - Moved all the constructor code out of "stdlib_init_exit.c" and into the
files which initialize global data, such as the new "stdlib_program_name.c"
  and "stdlib_malloc.c".

- Until I can find a way to invoke it from within the library, the
  __machine_test() function is no longer invoked.

- Tagged global data with NOCOMMON attributes.

- Added the __lib_init() and __lib_exit() functions, which are part of the
  thread-safe library and which can be used to hook up clib2 with standard
  Amiga shared library/device code. Some documentation on how to use them
  can be found in the <dos.h> header file.


git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@14999 87f5fb63-7c3d-0410-a384-fd976d0f7a62
2005-07-03 10:36:48 +00:00

154 lines
4.1 KiB
C

/*
* $Id: unistd_timer.c,v 1.8 2005-07-03 10:36:47 obarthel Exp $
*
* :ts=4
*
* Portable ISO 'C' (1994) runtime library for the Amiga computer
* Copyright (c) 2002-2005 by Olaf Barthel <olsen@sourcery.han.de>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Neither the name of Olaf Barthel nor the names of contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _UNISTD_HEADERS_H
#include "unistd_headers.h"
#endif /* _UNISTD_HEADERS_H */
#ifndef _STDLIB_HEADERS_H
#include "stdlib_headers.h"
#endif /* _STDLIB_HEADERS_H */
/****************************************************************************/
#ifndef _STDLIB_CONSTRUCTOR_H
#include "stdlib_constructor.h"
#endif /* _STDLIB_CONSTRUCTOR_H */
/****************************************************************************/
/* The following is not part of the ISO 'C' (1994) standard. */
/****************************************************************************/
/* Local timer I/O. */
struct MsgPort * NOCOMMON __timer_port;
struct timerequest * NOCOMMON __timer_request;
BOOL NOCOMMON __timer_busy;
struct Library * NOCOMMON __TimerBase;
/****************************************************************************/
#if defined(__amigaos4__)
struct TimerIFace * NOCOMMON __ITimer;
#endif /* __amigaos4__ */
/****************************************************************************/
CLIB_CONSTRUCTOR(timer_init)
{
BOOL success = FALSE;
ENTER();
__timer_port = CreateMsgPort();
if(__timer_port == NULL)
{
__show_error("The timer message port could not be created.");
goto out;
}
__timer_request = (struct timerequest *)CreateIORequest(__timer_port,sizeof(*__timer_request));
if(__timer_request == NULL)
{
__show_error("The timer I/O request could not be created.");
goto out;
}
if(OpenDevice(TIMERNAME,UNIT_VBLANK,(struct IORequest *)__timer_request,0) != OK)
{
__show_error("The timer could not be opened.");
goto out;
}
__TimerBase = (struct Library *)__timer_request->tr_node.io_Device;
#if defined(__amigaos4__)
{
__ITimer = (struct TimerIFace *)GetInterface(__TimerBase, "main", 1, 0);
if(__ITimer == NULL)
{
__show_error("The timer interface could not be obtained.");
goto out;
}
}
#endif /* __amigaos4__ */
success = TRUE;
out:
SHOWVALUE(success);
LEAVE();
if(success)
CONSTRUCTOR_SUCCEED();
else
CONSTRUCTOR_FAIL();
}
/****************************************************************************/
CLIB_DESTRUCTOR(timer_exit)
{
ENTER();
#if defined(__amigaos4__)
{
if(__ITimer != NULL)
DropInterface((struct Interface *)__ITimer);
__ITimer = NULL;
}
#endif /* __amigaos4__ */
__TimerBase = NULL;
if(__timer_request != NULL)
{
if(__timer_request->tr_node.io_Device != NULL)
CloseDevice((struct IORequest *)__timer_request);
DeleteIORequest((struct IORequest *)__timer_request);
__timer_request = NULL;
}
if(__timer_port != NULL)
{
DeleteMsgPort(__timer_port);
__timer_port = NULL;
}
LEAVE();
}