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git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@14789 87f5fb63-7c3d-0410-a384-fd976d0f7a62
123 lines
3.4 KiB
C
123 lines
3.4 KiB
C
/*
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* $Id: stdio_iobhookentry.c,v 1.2 2005-01-02 09:07:08 obarthel Exp $
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*
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* :ts=4
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*
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* Portable ISO 'C' (1994) runtime library for the Amiga computer
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* Copyright (c) 2002-2005 by Olaf Barthel <olsen@sourcery.han.de>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Neither the name of Olaf Barthel nor the names of contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _STDIO_HEADERS_H
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#include "stdio_headers.h"
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#endif /* _STDIO_HEADERS_H */
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/****************************************************************************/
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void
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__iob_hook_entry(
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struct Hook * UNUSED unused_hook,
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struct iob * file_iob,
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struct file_hook_message * message)
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{
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int result;
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int error;
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assert( message != NULL && file_iob != NULL );
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switch(message->action)
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{
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case file_hook_action_read:
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SHOWMSG("file_hook_action_read");
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SHOWVALUE(file_iob->iob_Descriptor);
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SHOWPOINTER(message->data);
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SHOWVALUE(message->size);
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assert( message->data != NULL );
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assert( message->size > 0 );
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assert( FLAG_IS_SET(file_iob->iob_Flags,IOBF_IN_USE) );
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result = __read(file_iob->iob_Descriptor,message->data,(size_t)message->size,&error);
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break;
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case file_hook_action_write:
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SHOWMSG("file_hook_action_write");
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SHOWVALUE(file_iob->iob_Descriptor);
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SHOWPOINTER(message->data);
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SHOWVALUE(message->size);
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assert( message->data != NULL );
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assert( message->size > 0 );
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assert( FLAG_IS_SET(file_iob->iob_Flags,IOBF_IN_USE) );
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result = __write(file_iob->iob_Descriptor,message->data,(size_t)message->size,&error);
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break;
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case file_hook_action_seek:
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SHOWMSG("file_hook_action_seek");
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SHOWVALUE(file_iob->iob_Descriptor);
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SHOWVALUE(message->position);
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SHOWVALUE(message->mode);
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assert( FLAG_IS_SET(file_iob->iob_Flags,IOBF_IN_USE) );
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result = __lseek(file_iob->iob_Descriptor,message->position,message->mode,&error);
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break;
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case file_hook_action_close:
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SHOWMSG("file_hook_action_close");
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SHOWVALUE(file_iob->iob_Descriptor);
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assert( FLAG_IS_SET(file_iob->iob_Flags,IOBF_IN_USE) );
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result = __close(file_iob->iob_Descriptor,&error);
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break;
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default:
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SHOWVALUE(message->action);
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result = -1;
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error = EBADF;
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break;
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}
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SHOWVALUE(result);
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message->result = result;
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message->error = error;
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}
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