To release a command queue, call the function
cl_int clReleaseCommandQueue( cl_command_queue command_queue);
command_queue specifies the command-queue to be released.
The command_queue reference count is decremented.
After the command_queue reference count becomes zero and all commands queued to command_queue have finished (eg. kernel-instances, memory object updates etc.), the command-queue is deleted.
clReleaseCommandQueue performs an implicit flush to issue any previously queued OpenCL commands in command_queue. Using this function to release a reference that was not obtained by creating the object or by calling clRetainCommandQueue causes undefined behavior.
CL_SUCCESS if the function is executed
Otherwise, it returns one of the following errors:
CL_INVALID_COMMAND_QUEUEif command_queue is not a valid command-queue.
CL_OUT_OF_RESOURCESif there is a failure to allocate resources required by the OpenCL implementation on the device.
CL_OUT_OF_HOST_MEMORYif there is a failure to allocate resources required by the OpenCL implementation on the host.
For more information, see the OpenCL Specification
This page is extracted from the OpenCL Specification. Fixes and changes should be made to the Specification, not directly.
Copyright (c) 2014-2020 Khronos Group. This work is licensed under a Creative Commons Attribution 4.0 International License.