Module process

Process-associated operations.

Structs

• Gid
  gid_t—A Unix group ID.
• Pid
  pid_t—A non-zero Unix process ID.
• Rlimit
  struct rlimit—Current and maximum values used in getrlimit, setrlimit, and [prlimit].
• Uid
  uid_t—A Unix user ID.
• WaitOptions
  Options for modifying the behavior of wait/waitpid.
• WaitStatus
  The status of a child process after calling wait/waitpid.
• WaitidOptions
  Options for modifying the behavior of waitid.
• WaitidStatus
  The status of a process after calling waitid.

Enums

• Resource
  A resource value for use with getrlimit, setrlimit, and prlimit.
• Signal
  A signal number for use with kill_process, kill_process_group, and kill_current_process_group.
• WaitId
  The identifier to wait on in a call to waitid.

Constants

• EXIT_FAILURE
  EXIT_FAILURE for use with exit.
• EXIT_SIGNALED_SIGABRT
  The exit status used by a process terminated with a Signal::Abort signal.
• EXIT_SUCCESS
  EXIT_SUCCESS for use with exit.

Functions

• chdir
  chdir(path)—Change the current working directory.
• chroot
  chroot(path)—Change the process root directory.
• fchdir
  fchdir(fd)—Change the current working directory.
• getcwd
  getcwd—Return the current working directory.
• getegid
  getegid()—Returns the process’ effective group ID.
• geteuid
  geteuid()—Returns the process’ effective user ID.
• getgid
  getgid()—Returns the process’ real group ID.
• getgroups
  getgroups()—Return a list of the current user’s groups.
• getpgid
  getpgid(pid)—Returns the process group ID of the given process.
• getpgrp
  getpgrp()—Returns the process’ group ID.
• getpid
  getpid()—Returns the process’ ID.
• getppid
  getppid()—Returns the parent process’ ID.
• getpriority_pgrp
  getpriority(PRIO_PGRP, gid)—Get the scheduling priority of the given process group.
• getpriority_process
  getpriority(PRIO_PROCESS, pid)—Get the scheduling priority of the given process.
• getpriority_user
  getpriority(PRIO_USER, uid)—Get the scheduling priority of the given user.
• getrlimit
  getrlimit(resource)—Get a process resource limit value.
• getsid
  getsid(pid)—Get the session ID of the given process.
• getuid
  getuid()—Returns the process’ real user ID.
• ioctl_tiocsctty
  ioctl(fd, TIOCSCTTY, 0)—Sets the controlling terminal for the process.
• kill_current_process_group
  kill(0, sig)—Sends a signal to all processes in the current process group.
• kill_process
  kill(pid, sig)—Sends a signal to a process.
• kill_process_group
  kill(-pid, sig)—Sends a signal to all processes in a process group.
• nice
  nice(inc)—Adjust the scheduling priority of the current process.
• sched_yield
  sched_yield()—Hints to the OS that other processes should run.
• setpgid
  setpgid(pid, pgid)—Sets the process group ID of the given process.
• setpriority_pgrp
  setpriority(PRIO_PGRP, pgid)—Get the scheduling priority of the given process group.
• setpriority_process
  setpriority(PRIO_PROCESS, pid)—Get the scheduling priority of the given process.
• setpriority_user
  setpriority(PRIO_USER, uid)—Get the scheduling priority of the given user.
• setrlimit
  setrlimit(resource, new)—Set a process resource limit value.
• setsid
  setsid()—Create a new session.
• test_kill_current_process_group
  kill(0, 0)—Check validity of pid and permissions to send signals to the all processes in the current process group, without actually sending any signals.
• test_kill_process
  kill(pid, 0)—Check validity of pid and permissions to send signals to the process, without actually sending any signals.
• test_kill_process_group
  kill(-pid, 0)—Check validity of pid and permissions to send signals to all processes in the process group, without actually sending any signals.
• umask
  umask(mask)—Set the process file creation mask.
• wait
  wait(waitopts)—Wait for any of the children of calling process to change state.
• waitid
  waitid(_, _, _, opts)—Wait for the specified child process to change state.
• waitpgid
  waitpid(-pgid, waitopts)—Wait for a process in a specific process group to change state.
• waitpid
  waitpid(pid, waitopts)—Wait for a specific process to change state.

Type Aliases

• RawGid
  A group identifier as a raw integer.
• RawPid
  A process identifier as a raw integer.
• RawUid
  A user identifier as a raw integer.