Provided by: opencl-1.2-man-doc_1.0~svn22836-1.1_all
clCreateUserEvent - Creates a user event object. cl_event clCreateUserEvent(cl_context context, cl_int *errcode_ret);
context A valid OpenCL context used to create the user event object. errcode_ret Returns an appropriate error code. If errcode_ret is NULL, no error code is returned.
User events allow applications to enqueue commands that wait on a user event to finish before the command is executed by the device. The execution status of the user event object created is set to CL_SUBMITTED.
Returns a valid non-zero buffer object and errcode_ret is set to CL_SUCCESS if the user event object is created successfully. Otherwise, it returns a NULL value with one of the following error values returned in errcode_ret: · CL_INVALID_CONTEXT if context is not a valid context. · CL_OUT_OF_RESOURCES if there is a failure to allocate resources required by the OpenCL implementation on the device. · CL_OUT_OF_HOST_MEMORY if there is a failure to allocate resources required by the OpenCL implementation on the host.
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1. OpenCL Specification page 178, section 5.9 - Event Objects