LibX

Returns the maximum size of the mask used for process/thread affinities, or UV_ENOTSUP if affinities are not supported on the current platform.

Ref: docs

uv_thread_getaffinity(self_ref, cpumask, masksize)

Gets the specified thread's affinity setting. On Unix, this maps the cpu_set_t returned by pthread_getaffinity_np(3) to bytes in cpumask.

The masksize specifies the number of entries (bytes) in cpumask, and must be greater-than-or-equal-to uv_cpumask_size.

Note: Thread affinity getting is not atomic on Windows and unsupported on macOS.

Ref: docs

uv_thread_getaffinity()

Query the calling thread's affinity.

Ref: docs

uv_thread_setaffinity(self_ref, cpumask, oldmask, masksize)

Sets the specified thread's affinity to cpumask, which is specified in bytes. Optionally returning the previous affinity setting in oldmask. On Unix, uses pthread_getaffinity_np(3) to get the affinity setting and maps the cpu_set_t to bytes in oldmask. Then maps the bytes in cpumask to a cpu_set_t and uses pthread_setaffinity_np(3). On Windows, maps the bytes in cpumask to a bitmask and uses SetThreadAffinityMask() which returns the previous affinity setting.

The masksize specifies the number of entries (bytes) in cpumask / oldmask, and must be greater-than-or-equal-to uv_cpumask_size().

Note: Thread affinity setting is not atomic on Windows and unsupported on macOS.

Ref: docs

uv_thread_setaffinity(procid::Integer)

Set the calling thread's affinity to procid.

Returns the process ID (PID) of the calling process.

Ref: docs

Returns the process ID of the parent of the calling process.

Ref: docs

Returns the caller's thread ID (TID). In a single- threaded process, the thread ID is equal to the process ID (PID, as returned by getpid(2)). In a multithreaded process, all threads have the same PID, but each one has a unique TID.

Ref: docs

Returns the number of the CPU on which the calling thread is currently executing.

Ref: docs

The input mask should be either of the following:

• a BitArray indicating the mask directly
• a vector of cpuids (the mask will be constructed automatically)