Module polkadot_node_core_pvf_common::worker

Functionality common to both prepare and execute workers.

Modules

• security
  Functionality for securing workers.
• thread
  Functionality related to threads spawned by the workers.

Structs

• PipeFd
  A wrapper around a file descriptor used to encapsulate and restrict functionality for pipe operations.
• WorkerInfo

Enums

• WorkerKind

Constants

• JOB_TIMEOUT_OVERHEAD
  Some allowed overhead that we account for in the “CPU time monitor” thread’s sleeps, on the child process.

Functions

• cpu_time_monitor_loop
  Loop that runs in the CPU time monitor thread on prepare and execute jobs. Continuously wakes up and then either blocks for the remaining CPU time, or returns if we exceed the CPU timeout.
• get_total_cpu_usage
  Calculate the total CPU time from the given usage structure, returned from [nix::sys::resource::getrusage], and calculates the total CPU time spent, including both user and system time.
• pipe2_cloexec
• recv_child_response
  Get a job response.
• run_worker
  Initializes the worker process, then runs the given event loop, which spawns a new job process to securely handle each incoming request.
• send_result
• stringify_errno
• stringify_panic_payload
  Attempt to convert an opaque panic payload to a string.