►Open  CL
►1 C API Reference
▼1.3 The Open  CL Runtime
On this page:
cl  Wait  For  Events
cl  Get  Event  Info
cl  Get  Event  Info:  length
cl  Get  Event  Info:  _  cl_  command_  queue
cl  Get  Event  Info:  _  cl_  command_  type
cl  Get  Event  Info:  _  command_  execution_  status
cl  Get  Event  Info:  _  cl_  uint
cl  Get  Event  Info/  c
cl  Get  Event  Info:  generic
cl  Retain  Event
cl  Release  Event
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1.3.7 Event Objects🔗ℹ

 (require opencl/c/5-7) package: opencl

procedure

(clWaitForEvents wait-list) → void

  wait-list : (vectorof _cl_event/c)

value

clGetEventInfo : procedure?

A dummy Racket function that refers callers to the other clGetEventInfo-based functions which access the true C function.

procedure

(clGetEventInfo:length event param_name) → _size_t/c

  event : _cl_event/c
  param_name : _cl_event_info/c
Returns the size of param_name field of the argument(s). Calls clGetEventInfo with values for param_value_size and param_value such that param_value_size_ret is queried.

procedure

(clGetEventInfo:_cl_command_queue event 
  param_name) 
 → _cl_command_queue/c
  event : _cl_event/c
  param_name : _cl_event_info/c
Returns the value associated with param_name for the argument(s). Implemented by clGetEventInfo with param_value_size set to (ctype-sizeof _cl_command_queue) so that the value is queried. Valid param_names are '(CL_EVENT_COMMAND_QUEUE).

procedure

(clGetEventInfo:_cl_command_type event 
  param_name) 
 → _cl_command_type/c
  event : _cl_event/c
  param_name : _cl_event_info/c
Returns the value associated with param_name for the argument(s). Implemented by clGetEventInfo with param_value_size set to (ctype-sizeof _cl_command_type) so that the value is queried. Valid param_names are '(CL_EVENT_COMMAND_TYPE).

procedure

(clGetEventInfo:_command_execution_status event 
  param_name) 
 → _command_execution_status/c
  event : _cl_event/c
  param_name : _cl_event_info/c
Returns the value associated with param_name for the argument(s). Implemented by clGetEventInfo with param_value_size set to (ctype-sizeof _command_execution_status) so that the value is queried. Valid param_names are '(CL_EVENT_COMMAND_EXECUTION_STATUS).

procedure

(clGetEventInfo:_cl_uint event param_name) → _cl_uint/c

  event : _cl_event/c
  param_name : _cl_event_info/c
Returns the value associated with param_name for the argument(s). Implemented by clGetEventInfo with param_value_size set to (ctype-sizeof _cl_uint) so that the value is queried. Valid param_names are '(CL_EVENT_REFERENCE_COUNT).

value

clGetEventInfo/c : contract?

A contract for the return values of clGetEventInfo:generic. Its definition is: (or/c _cl_command_queue/c _cl_command_type/c _command_execution_status/c _cl_uint/c).

procedure

(clGetEventInfo:generic event param_name) → clGetEventInfo/c

  event : _cl_event/c
  param_name : _cl_event_info/c
Returns the value associated with param_name for the argument(s). Selects the appropriate clGetEventInfo-based function to extract the appropriate value, automatically providing the right length for variable length functions.

procedure

(clRetainEvent evt) → void

  evt : _cl_event/c

procedure

(clReleaseEvent evt) → void

  evt : _cl_event/c

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