Module nix::unistd [−][src]
Expand description
Safe wrappers around functions found in libc “unistd.h” header
Modules
Alarm signal scheduling.
Structs
Enums
Flags for fchownat function.
Represents the successful result of calling fork
Flags for linkat function.
Variable names for pathconf
Variable names for sysconf
Flags for unlinkat function.
Constants
Constant for UID = 0
Functions
Checks the file named by path for accessibility according to the flags given by amode
See access(2)
Change the current working directory of the calling process (see chdir(2)).
Change the ownership of the file at path to be owned by the specified
owner (user) and group (see
chown(2)).
Close a raw file descriptor
Create a copy of the specified file descriptor (see dup(2)).
Create a copy of the specified file descriptor using the specified fd (see dup(2)).
Create a new copy of the specified file descriptor using the specified fd and flags (see dup(2)).
Replace the current process image with a new one (see exec(3)).
Replace the current process image with a new one (see execve(2)).
Replace the current process image with a new one and replicate shell PATH
searching behavior (see
exec(3)).
Change the current working directory of the process to the one given as an open file descriptor (see fchdir(2)).
Change the ownership of the file referred to by the open file descriptor fd to be owned by
the specified owner (user) and group (see
fchown(2)).
Create a new child process duplicating the parent process (see fork(2)).
Like pathconf, but works with file descriptors instead of paths (see
fpathconf(2))
Synchronize changes to a file
Truncate a file to a specified length
Returns the current directory as a PathBuf
Get the effective group ID
Get the effective user ID
Get the real group ID
Get the list of supplementary group IDs of the calling process.
Get the host name and store it in the provided buffer, returning a pointer
the CStr in that buffer on success (see
gethostname(2)).
Get the group id of the calling process (see getpgrp(3)).
Get the pid of this process (see getpid(2)).
Get the pid of this processes’ parent (see getpid(2)).
Get a real user ID
Move the read/write file offset.
Creates new directory path with access rights mode. (see mkdir(2))
Creates a regular file which persists even after process termination
Get path-dependent configurable system variables (see pathconf(2))
Create an interprocess channel.
Like pipe, but allows setting certain file descriptor flags.
Read from a raw file descriptor.
Set the effective group ID
Set the effective user ID
Set the group ID
Set a process group ID (see setpgid(2)).
Create new session and set process group id (see setsid(2)).
Set the user ID
Suspend execution for an interval of time
Get configurable system variables (see sysconf(3))
Get the terminal foreground process group (see tcgetpgrp(3)).
Set the terminal foreground process group (see tcgetpgrp(3)).
Get the name of the terminal device that is open on file descriptor fd
(see ttyname(3)).
Remove a directory entry
Write to a raw file descriptor.