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lib/Sidef/Sys/Sys.pod  view on Meta::CPAN

Returns the priority (nice value) of a process, process group, or user. The which parameter specifies the type (0=process, 1=process group, 2=user), and who specifies the ID.

    var priority = Sys.getpriority(0, 0)  # Current process priority

=cut

=head2 getprotobyname

    Sys.getprotobyname(name)

Returns protocol information for the specified protocol name (e.g., 'tcp', 'udp', 'icmp').

    var proto = Sys.getprotobyname('tcp')
    say proto{:proto}  # Protocol number

=cut

=head2 getprotobynumber

    Sys.getprotobynumber(num)

Returns protocol information for the specified protocol number.

    var proto = Sys.getprotobynumber(6)  # TCP

=cut

=head2 getprotoent

    Sys.getprotoent

Returns the next protocol entry from the system protocols database. Returns nil when there are no more entries.

=cut

=head2 getpwent

    Sys.getpwent

Returns the next user entry from the system password database. Returns nil when there are no more entries. Must be reset with setpwent() to iterate again.

    Sys.setpwent
    while (var user = Sys.getpwent) {
        say user{:name}
    }

=cut

=head2 getpwnam

    Sys.getpwnam(name)

Returns user information for the specified username. Returns a hash containing name, passwd, uid, gid, gecos, dir, and shell.

    var user = Sys.getpwnam('root')
    say user{:uid}
    say user{:dir}

=cut

=head2 getpwuid

    Sys.getpwuid(uid)

Returns user information for the specified user ID (UID). Returns a hash containing name, passwd, uid, gid, gecos, dir, and shell.

    var user = Sys.getpwuid(1000)
    say user{:name}

=cut

=head2 getservbyname

    Sys.getservbyname(name, proto)

Returns service information for the specified service name and protocol.

    var service = Sys.getservbyname('http', 'tcp')
    say service{:port}  # 80

=cut

=head2 getservbyport

    Sys.getservbyport(port, proto)

Returns service information for the specified port number and protocol.

    var service = Sys.getservbyport(80, 'tcp')
    say service{:name}  # "http"

=cut

=head2 getservent

    Sys.getservent

Returns the next service entry from the system services database. Returns nil when there are no more entries.

=cut

=head2 isweak

    Sys.isweak(obj)

Returns true if the reference to the object is weak (will not prevent garbage collection), false otherwise.

    var ref = \obj
    say Sys.isweak(ref)  # false
    Sys.weaken(ref)
    say Sys.isweak(ref)  # true

=cut

=head2 kill

    Sys.kill(signal, *list)

Sends the specified signal to the list of process IDs. Returns the number of processes successfully signaled. Signal can be a number or a name (e.g., 'TERM', 'KILL', 'HUP').

    Sys.kill('TERM', 1234)        # Terminate process 1234
    Sys.kill(9, 1234, 5678)       # Kill multiple processes
    Sys.kill('HUP', Sys.getppid)  # Send HUP to parent

=cut

=head2 nano_sleep