Create

Purpose

Creates a thread.

Parameters

• [out] thread – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the thread.
• [out] tid – thread ID (TID).
• [in] priority – thread priority.
• [in] stackSize – thread stack limit (in bytes), or 0 to use the default size that was defined when the process was created.
• [in] routine – pointer to the function that is called when the thread starts.
• [in] context – pointer to the function executed by the thread.
• [in] context2 – pointer to the parameters passed to the function defined via the context parameter.
• [in] flags – flags defining the parameters for creating the thread.
• [out] rc – return code.

Allows the following:

• Create a real-time thread that takes up all the CPU time from other threads, including from other processes (it is recommended to monitor thread creation parameters).
• Create a multitude of threads (including with high priority) to reduce the CPU time available to the threads of other processes (it is recommended to monitor thread priority).
• Exhaust the RAM.
• Exhaust the kernel memory by creating a multitude of objects within it.

OpenCurrent

Purpose

Creates the handle of the calling thread.

Parameters

• [out] thread – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the thread.
• [out] rc – return code.

N/A

Suspend

Purpose

Locks the calling thread.

Parameters

• [out] rc – return code.

Locks a thread that has captured a synchronization object that was created in shared memory and is anticipated by a thread of another process. As a result, the thread of the other process may be locked indefinitely.

Resume

Purpose

Resumes execution of a locked thread.

Parameters

• [in] thread – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the thread.
• [out] rc – return code.

N/A

Terminate

Purpose

Terminates a thread.

Parameters

• [in] thread – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the thread.
• [in] code – thread exit code.
• [out] rc – return code.

N/A

Exit

Purpose

Terminates the calling thread.

Parameters

• [in] code – thread exit code.
• [out] rc – return code.

N/A

Wait

Purpose

Locks the calling thread until the defined thread is terminated.

Parameters

• [in] thread – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the thread.
• [in] msec – thread termination timeout (in milliseconds).
• [out] code – thread exit code.
• [out] rc – return code.

N/A

SetPriority

Purpose

Defines the priority of a thread.

Parameters

• [in] thread – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the thread.
• [in] priority – thread priority.
• [out] rc – return code.

Allows the priority of a thread to be elevated to reduce the CPU time available to all other threads, including from other processes.

It is recommended to monitor thread priority.

SetTls

Purpose

Defines the base address of the Thread Local Storage (TLS) for the calling thread.

Parameters

• [in] va – pointer to the local memory of the thread.
• [out] rc – return code.

N/A

Sleep

Purpose

Locks the calling thread for the specified duration.

Parameters

• [in] mdelay – thread lockout duration (in milliseconds).
• [out] rc – return code.

N/A

GetInfo

Purpose

Gets information about a thread.

Parameters

• [in] thread – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the thread.
• [out] info is the structure containing the base address of the thread stack and its size (in bytes), and the thread identifier (TID).
• [out] rc – return code.

N/A

DetachIrq

Purpose

Detaches the calling thread from the interrupt handled in its context.

Parameters

• [out] rc – return code.

N/A

GetAffinity

Purpose

Gets a thread affinity mask.

Parameters

• [in] thread – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the thread.
• [out] mask – thread affinity mask.
• [out] rc – return code.

N/A

SetAffinity

Purpose

Defines a thread affinity mask.

Parameters

• [in] thread – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the thread.
• [in] mask – thread affinity mask.
• [out] rc – return code.

N/A

SetSchedPolicy

Purpose

Defines the scheduler class and priority of the thread.

Parameters

• [in] thread – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the thread.
• [in] policy – thread scheduler class.
• [in] priority – thread priority.
• [in] param – union containing parameters of a thread scheduler class.
• [out] rc – return code.

Allows the following:

• Convert a thread into a real-time thread that takes up all the CPU time from all other threads, including from other processes (it is recommended to monitor the thread scheduler class).
• Elevate the priority of a thread to reduce the CPU time available to all other threads, including from other processes (it is recommended to monitor thread priority).

GetSchedPolicy

Purpose

Gets information about the scheduler class and priority of a thread.

Parameters

• [in] thread – value whose binary representation consists of multiple fields, including a handle field and a handle permissions mask field. The handle identifies the thread.
• [out] policy – thread scheduler class.
• [out] priority – thread priority.
• [out] param – union containing parameters of a thread scheduler class.
• [out] rc – return code.

N/A