Module rustix::process [−][src]
Expand description
Process-associated operations.
Structs
CpuSet represent a bit-mask of CPUs.
CpuSets are used by sched_setaffinity
and
sched_getaffinity
for example.
A Linux CPU ID.
gid_t
—A Unix group ID.
A result from membarrier_query
.
pid_t
—A non-zero Unix process ID.
uid_t
—A Unix user ID.
Options for modifying the behavior of wait/waitpid
the status of the child processes the caller waited on
Enums
A command for use with membarrier
and membarrier_cpu
.
Constants
EXIT_FAILURE
for use with exit
.
The exit status used by a process terminated with SIGABRT
signal.
EXIT_SUCCESS
for use with exit
.
Functions
chdir(path)
—Change the working directory.
fchdir(fd)
—Change the working directory.
getcwd()
getegid()
—Returns the process’ effective group ID.
geteuid()
—Returns the process’ effective user ID.
getgid()
—Returns the process’ real group ID.
getpid()
—Returns the process’ ID.
getppid()
—Returns the parent process’ ID.
getpriority(PRIO_PGRP, gid)
—Get the scheduling priority of the given
process group.
getpriority(PRIO_PROCESS, pid)
—Get the scheduling priority of the given
process.
getpriority(PRIO_USER, uid)
—Get the scheduling priority of the given
user.
getrlimit(resource)
—Get a process resource limit value.
getuid()
—Returns the process’ real user ID.
getauxval(AT_EXECFN)
—Returns the Linux “execfn” string.
(getauxval(AT_HWCAP), getauxval(AT_HWCAP2)
—Returns the Linux “hwcap”
data.
membarrier(cmd, 0, 0)
—Perform a memory barrier.
membarrier(cmd, MEMBARRIER_CMD_FLAG_CPU, cpu)
—Perform a memory barrier
with a specific CPU.
membarrier(MEMBARRIER_CMD_QUERY, 0, 0)
—Query the supported membarrier
commands.
nice()
—Adjust the scheduling priority of the current process.
getpagesize()
—Returns the process’ page size.
sched_getaffinity(pid)
—Get a thread’s CPU affinity mask.
sched_setaffinity(pid, cpuset)
—Set a thread’s CPU affinity mask.
sched_yield()
—Hints to the OS that other processes should run.
setpriority(PRIO_PGRP, pgid)
—Get the scheduling priority of the given
process group.
setpriority(PRIO_PROCESS, pid)
—Get the scheduling priority of the given
process.
setpriority(PRIO_USER, uid)
—Get the scheduling priority of the given
user.
uname()
—Returns high-level information about the runtime OS and
hardware.
wait(waitopts)
—Wait for any of the children of calling process to
change state.
waitpid(pid, waitopts)
—Wait for a specific process to change state.
Type Definitions
A group identifier as a raw integer.
A non-zero process identifier as a raw non-zero integer.
A process identifier as a raw integer.
A user identifier as a raw integer.