Performs a Miller-Rabin primality test. This is same as prime?
except this first attempts trial divisions with some small primes.
checks - integer
trial_div - boolean
Creates a new Socket::AncillaryData
object which contains file descriptors as data.
p Socket::AncillaryData.unix_rights(STDERR) #=> #<Socket::AncillaryData: UNIX SOCKET RIGHTS 2>
returns the array of IO
objects for SCM_RIGHTS control message in UNIX domain socket.
The class of the IO
objects in the array is IO
or Socket
.
The array is attached to ancillarydata when it is instantiated. For example, BasicSocket#recvmsg
attach the array when receives a SCM_RIGHTS control message and :scm_rights=>true option is given.
# recvmsg needs :scm_rights=>true for unix_rights s1, s2 = UNIXSocket.pair p s1 #=> #<UNIXSocket:fd 3> s1.sendmsg "stdin and a socket", 0, nil, Socket::AncillaryData.unix_rights(STDIN, s1) _, _, _, ctl = s2.recvmsg(:scm_rights=>true) p ctl #=> #<Socket::AncillaryData: UNIX SOCKET RIGHTS 6 7> p ctl.unix_rights #=> [#<IO:fd 6>, #<Socket:fd 7>] p File.identical?(STDIN, ctl.unix_rights[0]) #=> true p File.identical?(s1, ctl.unix_rights[1]) #=> true # If :scm_rights=>true is not given, unix_rights returns nil s1, s2 = UNIXSocket.pair s1.sendmsg "stdin and a socket", 0, nil, Socket::AncillaryData.unix_rights(STDIN, s1) _, _, _, ctl = s2.recvmsg p ctl #=> #<Socket::AncillaryData: UNIX SOCKET RIGHTS 6 7> p ctl.unix_rights #=> nil
Returns original filename recorded in the gzip file header, or nil
if original filename is not present.
Specify the original name (str
) in the gzip header.
Returns true
if stat is writable by the real user id of this process.
File.stat("testfile").writable_real? #=> true
If stat is writable by others, returns an integer representing the file permission bits of stat. Returns nil
otherwise. The meaning of the bits is platform dependent; on Unix systems, see stat(2)
.
m = File.stat("/tmp").world_writable? #=> 511 sprintf("%o", m) #=> "777"
Has a method been included in the list of insecure methods?
Returns the eigenvector matrix V
Returns the block diagonal eigenvalue matrix D
Gets the body text from the target and outputs it to $stdout. The target can either be specified as (uri
), or as (host
, path
, port
= 80); so:
Net::HTTP.get_print URI('http://www.example.com/index.html')
or:
Net::HTTP.get_print 'www.example.com', '/index.html'
Maximum number of times to retry an idempotent request in case of Net::ReadTimeout
, IOError
, EOFError
, Errno::ECONNRESET
, Errno::ECONNABORTED
, Errno::EPIPE, OpenSSL::SSL::SSLError
, Timeout::Error
. Should be a non-negative integer number. Zero means no retries. The default value is 1.
Iterates over all typeclass
DNS
resources for name
. See getresource
for argument details.
Returns this attribute out as XML
source, expanding the name
a = Attribute.new( "x", "y" ) a.to_string # -> "x='y'" b = Attribute.new( "ns:x", "y" ) b.to_string # -> "ns:x='y'"
Method
contributed by Henrik Martensson
Evaluates to true
if this element has any attributes set, false otherwise.