4.104.114.84.95
Last change
on this file since 799c767 was
799c767,
checked in by Joel Sherrill <joel.sherrill@…>, on 11/02/99 at 18:00:15
|
Split the POSIX semaphore manager into multiple files.
|
-
Property mode set to
100644
|
File size:
1.4 KB
|
Rev | Line | |
---|
[799c767] | 1 | /* |
---|
| 2 | * $Id$ |
---|
| 3 | */ |
---|
| 4 | |
---|
| 5 | #include <stdarg.h> |
---|
| 6 | |
---|
| 7 | #include <errno.h> |
---|
| 8 | #include <fcntl.h> |
---|
| 9 | #include <pthread.h> |
---|
| 10 | #include <semaphore.h> |
---|
| 11 | #include <limits.h> |
---|
| 12 | |
---|
| 13 | #include <rtems/system.h> |
---|
| 14 | #include <rtems/score/object.h> |
---|
| 15 | #include <rtems/posix/semaphore.h> |
---|
| 16 | #include <rtems/posix/time.h> |
---|
| 17 | #include <rtems/posix/seterr.h> |
---|
| 18 | |
---|
| 19 | /*PAGE |
---|
| 20 | * |
---|
| 21 | * _POSIX_Semaphore_Wait_support |
---|
| 22 | */ |
---|
| 23 | |
---|
| 24 | int _POSIX_Semaphore_Wait_support( |
---|
| 25 | sem_t *sem, |
---|
| 26 | boolean blocking, |
---|
| 27 | Watchdog_Interval timeout |
---|
| 28 | ) |
---|
| 29 | { |
---|
| 30 | register POSIX_Semaphore_Control *the_semaphore; |
---|
| 31 | Objects_Locations location; |
---|
| 32 | int code; |
---|
| 33 | |
---|
| 34 | the_semaphore = _POSIX_Semaphore_Get( sem, &location ); |
---|
| 35 | switch ( location ) { |
---|
| 36 | case OBJECTS_ERROR: |
---|
| 37 | set_errno_and_return_minus_one( EINVAL ); |
---|
| 38 | case OBJECTS_REMOTE: |
---|
| 39 | _Thread_Dispatch(); |
---|
| 40 | return POSIX_MP_NOT_IMPLEMENTED(); |
---|
| 41 | set_errno_and_return_minus_one( EINVAL ); |
---|
| 42 | case OBJECTS_LOCAL: |
---|
| 43 | _CORE_semaphore_Seize( |
---|
| 44 | &the_semaphore->Semaphore, |
---|
| 45 | the_semaphore->Object.id, |
---|
| 46 | blocking, |
---|
| 47 | timeout |
---|
| 48 | ); |
---|
| 49 | _Thread_Enable_dispatch(); |
---|
| 50 | code = _Thread_Executing->Wait.return_code; |
---|
| 51 | switch (_Thread_Executing->Wait.return_code) { |
---|
| 52 | case 1: |
---|
| 53 | errno = EAGAIN; |
---|
| 54 | code = -1; |
---|
| 55 | break; |
---|
| 56 | case 3: |
---|
| 57 | errno = ETIMEDOUT; |
---|
| 58 | code = -1; |
---|
| 59 | break; |
---|
| 60 | } |
---|
| 61 | |
---|
| 62 | /*return _Thread_Executing->Wait.return_code;*/ |
---|
| 63 | return code; |
---|
| 64 | } |
---|
| 65 | return POSIX_BOTTOM_REACHED(); |
---|
| 66 | } |
---|
Note: See
TracBrowser
for help on using the repository browser.