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https://github.com/adtools/clib2.git
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f2d1a3238d
buffer tables so that all the memory allocations are in one place and it's possible to specify exactly how many table entries are required at a time. - Creation and initialization of semaphores now uses the AmigaOS4 specific functions for this purpose, if available. git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@14857 87f5fb63-7c3d-0410-a384-fd976d0f7a62
154 lines
3.9 KiB
C
154 lines
3.9 KiB
C
/*
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* $Id: socket_accept.c,v 1.9 2005-03-04 09:07:09 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 _STDLIB_NULL_POINTER_CHECK_H
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#include "stdlib_null_pointer_check.h"
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#endif /* _STDLIB_NULL_POINTER_CHECK_H */
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/****************************************************************************/
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#if defined(SOCKET_SUPPORT)
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/****************************************************************************/
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#ifndef _SOCKET_HEADERS_H
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#include "socket_headers.h"
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#endif /* _SOCKET_HEADERS_H */
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/****************************************************************************/
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int
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accept(int sockfd,struct sockaddr *cliaddr,int *addrlen)
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{
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struct SignalSemaphore * lock = NULL;
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struct fd * fd = NULL;
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struct fd * new_fd;
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int new_fd_slot_number;
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int result = -1;
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LONG new_socket_fd;
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ENTER();
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SHOWVALUE(sockfd);
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SHOWPOINTER(cliaddr);
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SHOWPOINTER(addrlen);
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assert( cliaddr != NULL && addrlen != NULL );
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assert(__SocketBase != NULL);
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__stdio_lock();
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#if defined(CHECK_FOR_NULL_POINTERS)
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{
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if(cliaddr == NULL || addrlen == NULL)
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{
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SHOWMSG("invalid parameters");
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__set_errno(EFAULT);
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goto out;
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}
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}
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#endif /* CHECK_FOR_NULL_POINTERS */
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assert( sockfd >= 0 && sockfd < __num_fd );
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assert( __fd[sockfd] != NULL );
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assert( FLAG_IS_SET(__fd[sockfd]->fd_Flags,FDF_IN_USE) );
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assert( FLAG_IS_SET(__fd[sockfd]->fd_Flags,FDF_IS_SOCKET) );
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fd = __get_file_descriptor_socket(sockfd);
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if(fd == NULL)
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goto out;
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__fd_lock(fd);
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new_fd_slot_number = __find_vacant_fd_entry();
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if(new_fd_slot_number < 0)
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{
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if(__grow_fd_table(0) < 0)
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{
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SHOWMSG("couldn't find a vacant fd slot and no memory to create one");
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goto out;
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}
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new_fd_slot_number = __find_vacant_fd_entry();
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assert( new_fd_slot_number >= 0 );
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}
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#if defined(__THREAD_SAFE)
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{
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lock = __create_semaphore();
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if(lock == NULL)
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{
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__set_errno(ENOMEM);
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goto out;
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}
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}
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#endif /* __THREAD_SAFE */
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PROFILE_OFF();
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new_socket_fd = __accept((LONG)fd->fd_DefaultFile,cliaddr,(LONG *)addrlen);
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PROFILE_ON();
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if(new_socket_fd < 0)
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{
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SHOWMSG("could not accept connection");
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goto out;
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}
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new_fd = __fd[new_fd_slot_number];
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__initialize_fd(new_fd,__socket_hook_entry,(BPTR)new_socket_fd,FDF_IN_USE | FDF_IS_SOCKET | FDF_READ | FDF_WRITE,lock);
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lock = NULL;
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result = new_fd_slot_number;
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out:
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__fd_unlock(fd);
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__stdio_unlock();
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__delete_semaphore(lock);
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if(__check_abort_enabled)
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__check_abort();
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RETURN(result);
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return(result);
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}
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/****************************************************************************/
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#endif /* SOCKET_SUPPORT */
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