#ifndef CYGONCE_ISO_MQUEUE_H #define CYGONCE_ISO_MQUEUE_H /*======================================================================== // // mqueue.h // // POSIX message queue functions // //======================================================================== //####ECOSGPLCOPYRIGHTBEGIN#### // ------------------------------------------- // This file is part of eCos, the Embedded Configurable Operating System. // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. // // eCos is free software; you can redistribute it and/or modify it under // the terms of the GNU General Public License as published by the Free // Software Foundation; either version 2 or (at your option) any later version. // // eCos is distributed in the hope that it will be useful, but WITHOUT ANY // WARRANTY; without even the implied warranty of MERCHANTABILITY or // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License // for more details. // // You should have received a copy of the GNU General Public License along // with eCos; if not, write to the Free Software Foundation, Inc., // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. // // As a special exception, if other files instantiate templates or use macros // or inline functions from this file, or you compile this file and link it // with other works to produce a work based on this file, this file does not // by itself cause the resulting work to be covered by the GNU General Public // License. However the source code for this file must still be made available // in accordance with section (3) of the GNU General Public License. // // This exception does not invalidate any other reasons why a work based on // this file might be covered by the GNU General Public License. // // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. // at http://sources.redhat.com/ecos/ecos-license/ // ------------------------------------------- //####ECOSGPLCOPYRIGHTEND#### //======================================================================== //#####DESCRIPTIONBEGIN#### // // Author(s): jlarmour // Contributors: // Date: 2000-05-05 // Purpose: This file provides the macros, types and functions // for message queues required by POSIX 1003.1. // Description: The real contents of this file get set from the // configuration (set by the implementation) // Usage: #include // //####DESCRIPTIONEND#### // //====================================================================== */ /* CONFIGURATION */ #include /* Configuration header */ #include /* CYGFUN_KERNEL_THREADS_TIMER */ /* INCLUDES */ #ifdef _POSIX_MESSAGE_PASSING # ifdef CYGBLD_ISO_MQUEUE_HEADER # include CYGBLD_ISO_MQUEUE_HEADER # else #include /* size_t and ssize_t */ /* TYPES */ struct mq_attr { long mq_flags; /* mqueue flags */ long mq_maxmsg; /* max number of messages */ long mq_msgsize; /* max message size */ long mq_curmsgs; /* number of messages currently queued */ }; typedef void *mqd_t; #ifdef __cplusplus extern "C" { #endif /* FUNCTIONS */ extern mqd_t mq_open( const char * /* name */, int /* oflag */, ... ); extern int mq_close( mqd_t /* mqdes */ ); extern int mq_unlink( const char * /* name */ ); extern int mq_send( mqd_t /* mqdes */, const char * /* msg_ptr */, size_t /* msg_len */, unsigned int /* msg_prio */ ); extern ssize_t mq_receive( mqd_t /* mqdes */, char * /* msg_ptr */, size_t /* msg_len */, unsigned int * /* msg_prio */ ); #ifdef _POSIX_REALTIME_SIGNALS struct sigevent; extern int mq_notify( mqd_t /* mqdes */, const struct sigevent * /* notification */ ); #endif extern int mq_setattr( mqd_t /* mqdes */, const struct mq_attr * /* mqstat */, struct mq_attr * /* omqstat */ ); extern int mq_getattr( mqd_t /* mqdes */, struct mq_attr * /* mqstat */ ); # ifdef CYGFUN_KERNEL_THREADS_TIMER /* POSIX 1003.1d Draft functions - FIXME: should be conditionalized */ struct timespec; /* forward declaration */ extern int mq_timedsend( mqd_t /* mqdes */, const char * /* msg_ptr */, size_t /* msg_len */, unsigned int /* msg_prio */, const struct timespec * /* abs_timeout */ ); extern ssize_t mq_timedreceive( mqd_t /* mqdes */, char * /* msg_ptr */, size_t /* msg_len */, unsigned int * /* msg_prio */, const struct timespec * /* abs_timeout */ ); # endif #ifdef __cplusplus } /* extern "C" */ #endif # endif /* ifndef CYGBLD_ISO_MQUEUE_HEADER */ #endif /* ifdef _POSIX_MESSAGE_PASSING */ #endif /* CYGONCE_ISO_MQUEUE_H multiple inclusion protection */ /* EOF mqueue.h */