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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 1999-01-25 23:20:52 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 1999-01-25 23:20:52 +0000 |
commit | 03598b162e66b6f3df8d9ed55ac18865c5ad2a22 (patch) | |
tree | 46278571b5897f389d05c312b444c8776e18792a /cpukit/posix/src/pthreadequal.c | |
parent | Added enough prototypes to allow most of POSIX Threads Manager to be (diff) | |
download | rtems-03598b162e66b6f3df8d9ed55ac18865c5ad2a22.tar.bz2 |
Split most of POSIX Threads Manager into multiple files.
Diffstat (limited to '')
-rw-r--r-- | cpukit/posix/src/pthreadequal.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/cpukit/posix/src/pthreadequal.c b/cpukit/posix/src/pthreadequal.c new file mode 100644 index 0000000000..083eda0c9f --- /dev/null +++ b/cpukit/posix/src/pthreadequal.c @@ -0,0 +1,79 @@ +/* + * 16.1.7 Compare Thread IDs, p1003.1c/Draft 10, p. 153 + * + * NOTE: POSIX does not define the behavior when either thread id is invalid. + * + * COPYRIGHT (c) 1989-1998. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.OARcorp.com/rtems/license.html. + * + * $Id$ + */ + +#include <pthread.h> +#include <errno.h> + +#include <rtems/system.h> +#include <rtems/score/thread.h> + +int pthread_equal( + pthread_t t1, + pthread_t t2 +) +{ + /* + * If the system is configured for debug, then we will do everything we + * can to insure that both ids are valid. Otherwise, we will do the + * cheapest possible thing to determine if they are equal. + */ + +#ifndef RTEMS_DEBUG + return _Objects_Are_ids_equal( t1, t2 ); +#else + int status; + Objects_Locations location; + + /* + * By default this is not a match. + */ + + status = 0; + + /* + * Validate the first id and return 0 if it is not valid + */ + + (void) _POSIX_Threads_Get( t1, &location ); + switch ( location ) { + case OBJECTS_ERROR: + case OBJECTS_REMOTE: + break; + + case OBJECTS_LOCAL: + + /* + * Validate the second id and return 0 if it is not valid + */ + + (void) _POSIX_Threads_Get( t2, &location ); + switch ( location ) { + case OBJECTS_ERROR: + case OBJECTS_REMOTE: + break; + case OBJECTS_LOCAL: + status = _Objects_Are_ids_equal( t1, t2 ); + break; + } + _Thread_Unnest_dispatch(); + break; + } + + _Thread_Enable_dispatch(); + return status; +#endif +} + |