Module rsix::process

Process-associated operations.

Structs

Cpuidlinux_raw, or libc and (Android or Linux)

A Linux CPU ID.

Gid

gid_t—A Unix group ID.

MembarrierQuery

A result from membarrier_query.

Pid

pid_t—A Unix process ID.

Rlimit

struct rlimit—Current and maximum values used in getrlimit.

Uid

uid_t—A Unix user ID.

Uname

struct utsname—Return type for uname.

Enums

MembarrierCommand

A command for use with membarrier and membarrier_cpu.

Resource

A resource value for use with getrlimit.

Constants

EXIT_FAILURE

EXIT_FAILURE for use with exit.

EXIT_SIGNALED_SIGABRTNon-WASI

The exit status used by a process terminated with SIGABRT signal.

EXIT_SUCCESS

EXIT_SUCCESS for use with exit.

Functions

chdir

chdir(path)—Change the working directory.

exit_groupAndroid or Linux

Exit all the threads in the current process’ thread group.

fchdirNon-Fuchsia

fchdir(fd)—Change the working directory.

getcwdNon-WASI

getcwd()

getegid

getegid()—Returns the process’ effective group ID.

geteuid

geteuid()—Returns the process’ effective user ID.

getgid

getgid()—Returns the process’ real group ID.

getpid

getpid()—Returns the process’ ID.

getppid

getppid()—Returns the parent process’ ID.

getpriority_pgrpNon-Redox

getpriority(PRIO_PGRP, gid)—Get the scheduling priority of the given process group.

getpriority_processNon-Redox

getpriority(PRIO_PROCESS, pid)—Get the scheduling priority of the given process.

getpriority_userNon-Redox

getpriority(PRIO_USER, uid)—Get the scheduling priority of the given user.

getrlimit

getrlimit(resource)—Get a process resource limit value.

getuid

getuid()—Returns the process’ real user ID.

linux_execfnlinux_raw, or libc and (Android or Linux)

getauxval(AT_EXECFN)—Returns the Linux “execfn” string.

linux_hwcaplinux_raw, or libc and (Android or Linux)

(getauxval(AT_HWCAP), getauxval(AT_HWCAP2)—Returns the Linux “hwcap” data.

membarrier

membarrier(cmd, 0, 0)—Perform a memory barrier.

membarrier_cpu

membarrier(cmd, MEMBARRIER_CMD_FLAG_CPU, cpu)—Perform a memory barrier with a specific CPU.

membarrier_query

membarrier(MEMBARRIER_CMD_QUERY, 0, 0)—Query the supported membarrier commands.

nice

nice()—Adjust the scheduling priority of the current process.

page_size

getpagesize()—Returns the process’ page size.

sched_yield

sched_yield()—Hints to the OS that other processes should run.

setpriority_pgrpNon-Redox

setpriority(PRIO_PGRP, pgid)—Get the scheduling priority of the given process group.

setpriority_processNon-Redox

setpriority(PRIO_PROCESS, pid)—Get the scheduling priority of the given process.

setpriority_userNon-Redox

setpriority(PRIO_USER, uid)—Get the scheduling priority of the given user.

uname

uname()—Returns high-level information about the runtime OS and hardware.

Type Definitions

RawGid

RawPid

RawUid