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[/] [or1k/] [trunk/] [rtems/] [c/] [src/] [exec/] [posix/] [src/] [mqueuenametoid.c] - Blame information for rev 1765

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Line No. Rev Author Line
1 158 chris
/*
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 *  NOTE:  The structure of the routines is identical to that of POSIX
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 *         Message_queues to leave the option of having unnamed message
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 *         queues at a future date.  They are currently not part of the
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 *         POSIX standard but unnamed message_queues are.  This is also
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 *         the reason for the apparently unnecessary tracking of
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 *         the process_shared attribute.  [In addition to the fact that
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 *         it would be trivial to add pshared to the mq_attr structure
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 *         and have process private message queues.]
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 *
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 *         This code ignores the O_RDONLY/O_WRONLY/O_RDWR flag at open
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 *         time.
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 *
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 *  $Id: mqueuenametoid.c,v 1.2 2001-09-27 11:59:17 chris Exp $
15 158 chris
 */
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#include <stdarg.h>
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#include <pthread.h>
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#include <limits.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <mqueue.h>
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#include <rtems/system.h>
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#include <rtems/score/watchdog.h>
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#include <rtems/posix/seterr.h>
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#include <rtems/posix/mqueue.h>
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#include <rtems/posix/time.h>
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31 208 chris
#ifndef PATH_MAX
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#define PATH_MAX 1024
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#endif
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35 158 chris
/*PAGE
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 *
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 *  _POSIX_Message_queue_Name_to_id
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 *
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 *  Look up the specified name and attempt to locate the id
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 *  for the associated message queue.
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 */
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int _POSIX_Message_queue_Name_to_id(
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  const char          *name,
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  Objects_Id          *id
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)
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{
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  Objects_Name_to_id_errors  status;
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   if ( !name )
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     return EINVAL;
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  if ( !name[0] )
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    return EINVAL;
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  if( strlen(name) > PATH_MAX )
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    return ENAMETOOLONG;
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  status = _Objects_Name_to_id(
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    &_POSIX_Message_queue_Information, (char *)name, 0, id );
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  if ( status == OBJECTS_SUCCESSFUL )
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    return 0;
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  return ENOENT;
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}

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