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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [posix/] [src/] [mqueuenametoid.c] - Rev 532
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/* * NOTE: The structure of the routines is identical to that of POSIX * Message_queues to leave the option of having unnamed message * queues at a future date. They are currently not part of the * POSIX standard but unnamed message_queues are. This is also * the reason for the apparently unnecessary tracking of * the process_shared attribute. [In addition to the fact that * it would be trivial to add pshared to the mq_attr structure * and have process private message queues.] * * This code ignores the O_RDONLY/O_WRONLY/O_RDWR flag at open * time. * * $Id: mqueuenametoid.c,v 1.2 2001-09-27 11:59:17 chris Exp $ */ #include <stdarg.h> #include <pthread.h> #include <limits.h> #include <errno.h> #include <fcntl.h> #include <mqueue.h> #include <rtems/system.h> #include <rtems/score/watchdog.h> #include <rtems/posix/seterr.h> #include <rtems/posix/mqueue.h> #include <rtems/posix/time.h> #ifndef PATH_MAX #define PATH_MAX 1024 #endif /*PAGE * * _POSIX_Message_queue_Name_to_id * * Look up the specified name and attempt to locate the id * for the associated message queue. */ int _POSIX_Message_queue_Name_to_id( const char *name, Objects_Id *id ) { Objects_Name_to_id_errors status; if ( !name ) return EINVAL; if ( !name[0] ) return EINVAL; if( strlen(name) > PATH_MAX ) return ENAMETOOLONG; status = _Objects_Name_to_id( &_POSIX_Message_queue_Information, (char *)name, 0, id ); if ( status == OBJECTS_SUCCESSFUL ) return 0; return ENOENT; }
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