| 1 | /* This header file contains the function prototypes for
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| 2 | * concurrency.
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| 3 | */
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| 4 |
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| 5 | #ifdef __CONCURRENCY__
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| 6 | #else
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| 7 | #define __CONCURRENCY__
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| 8 |
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| 9 | /* includes civlc.cvh because this library references $scope */
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| 10 | #include <civlc.cvh>
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| 11 |
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| 12 | /* ********************************* Types ********************************* */
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| 13 |
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| 14 | /* A data type representing a global barrier which must be operated by local
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| 15 | * barriers.
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| 16 | */
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| 17 | typedef struct __gbarrier__ * $gbarrier;
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| 18 |
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| 19 | /* A data type representing a global barrier which used for
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| 20 | * operating global barriers. The local barrier type has
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| 21 | * a handle of a global barrier.
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| 22 | */
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| 23 | typedef struct __barrier__ * $barrier;
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| 24 |
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| 25 | /* ******************************* Functions ******************************* */
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| 26 |
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| 27 | /* Creates a new barrier object and returns a handle to it.
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| 28 | * The barrier has the specified size.
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| 29 | * The new object will be allocated in the given scope. */
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| 30 | $gbarrier $gbarrier_create($scope scope, int size);
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| 31 |
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| 32 | /* Destroys the gbarrier */
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| 33 | void $gbarrier_destroy($gbarrier barrier);
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| 34 |
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| 35 | /* Creates a new local barrier object and returns a handle to it.
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| 36 | * The new barrier will be affiliated with the specified global
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| 37 | * barrier. This local barrier handle will be used as an
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| 38 | * argument in most barrier functions. The place must be in
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| 39 | * [0,size-1] and specifies the place in the global barrier
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| 40 | * that will be occupied by the local barrier.
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| 41 | * Only one call to $barrier_create may occur for each barrier-place pair.
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| 42 | * The new object will be allocated in the given scope. */
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| 43 | $barrier $barrier_create($scope scope, $gbarrier gbarrier, int place);
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| 44 |
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| 45 | /* Destroys the barrier. */
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| 46 | void $barrier_destroy($barrier barrier);
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| 47 |
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| 48 | /* Calls the barrier associated with this local barrier object.*/
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| 49 | void $barrier_call($barrier barrier);
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| 50 |
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| 51 | #endif
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