[be47df9] | 1 | /* |
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[c55df85] | 2 | * Timer Manager - rtems_timer_create directive |
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[be47df9] | 3 | * |
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| 4 | * |
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[c55df85] | 5 | * COPYRIGHT (c) 1989-2002. |
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[be47df9] | 6 | * On-Line Applications Research Corporation (OAR). |
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| 7 | * |
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| 8 | * The license and distribution terms for this file may be |
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| 9 | * found in the file LICENSE in this distribution or at |
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[7a39c88] | 10 | * http://www.rtems.com/license/LICENSE. |
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[be47df9] | 11 | * |
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| 12 | * $Id$ |
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| 13 | */ |
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| 14 | |
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| 15 | #include <rtems/system.h> |
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| 16 | #include <rtems/rtems/status.h> |
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| 17 | #include <rtems/rtems/support.h> |
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| 18 | #include <rtems/score/object.h> |
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| 19 | #include <rtems/score/thread.h> |
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| 20 | #include <rtems/rtems/timer.h> |
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| 21 | #include <rtems/score/tod.h> |
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| 22 | #include <rtems/score/watchdog.h> |
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| 23 | |
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| 24 | /*PAGE |
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| 25 | * |
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| 26 | * rtems_timer_create |
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| 27 | * |
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| 28 | * This directive creates a timer and performs some initialization. |
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| 29 | * |
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| 30 | * Input parameters: |
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| 31 | * name - timer name |
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| 32 | * id - pointer to timer id |
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| 33 | * |
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| 34 | * Output parameters: |
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[c55df85] | 35 | * id - timer id |
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[be47df9] | 36 | * RTEMS_SUCCESSFUL - if successful |
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[c55df85] | 37 | * error code - if unsuccessful |
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[be47df9] | 38 | */ |
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| 39 | |
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| 40 | rtems_status_code rtems_timer_create( |
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| 41 | rtems_name name, |
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| 42 | Objects_Id *id |
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| 43 | ) |
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| 44 | { |
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| 45 | Timer_Control *the_timer; |
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| 46 | |
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| 47 | if ( !rtems_is_name_valid( name ) ) |
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| 48 | return RTEMS_INVALID_NAME; |
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| 49 | |
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[17bbadd] | 50 | if ( !id ) |
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| 51 | return RTEMS_INVALID_ADDRESS; |
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| 52 | |
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[be47df9] | 53 | _Thread_Disable_dispatch(); /* to prevent deletion */ |
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| 54 | |
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| 55 | the_timer = _Timer_Allocate(); |
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| 56 | |
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| 57 | if ( !the_timer ) { |
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| 58 | _Thread_Enable_dispatch(); |
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| 59 | return RTEMS_TOO_MANY; |
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| 60 | } |
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| 61 | |
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| 62 | the_timer->the_class = TIMER_DORMANT; |
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[9f78139] | 63 | _Watchdog_Initialize( &the_timer->Ticker, NULL, 0, NULL ); |
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[be47df9] | 64 | |
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[6312db3] | 65 | _Objects_Open( |
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| 66 | &_Timer_Information, |
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| 67 | &the_timer->Object, |
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| 68 | (Objects_Name) name |
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| 69 | ); |
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[be47df9] | 70 | |
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| 71 | *id = the_timer->Object.id; |
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| 72 | _Thread_Enable_dispatch(); |
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| 73 | return RTEMS_SUCCESSFUL; |
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| 74 | } |
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