Writes data
to the underlying IO
and updates the digests
Raises an exception if a security policy that verifies data is active. Old
format gems cannot be verified as signed.
Sets url
as a source for gems for this dependency API. RubyGems uses the default configured sources if no source was given. If a source is set only that source is used.
This method differs in behavior from Bundler:
The :gemcutter
, # :rubygems
and :rubyforge
sources are not supported as they are deprecated in bundler.
The prepend:
option is not supported. If you wish to order sources then list them in your preferred order.
Writes the lock file alongside the gem dependencies file
The source for this specification
Make sure the trust directory exists. If it does exist, make sure it’s actually a directory. If not, then create it with the appropriate permissions.
Invoked by IO#write
to write length
bytes to io
from from a specified buffer
(see IO::Buffer
).
The length
argument is the “(minimum) length to be written”. If the IO
buffer size is 8KiB, but the length
specified is 1024 (1KiB), at most 8KiB will be written, but at least 1KiB will be. Generally, the only case where less data than length
will be written is if there is an error writing the data.
Specifying a length
of 0 is valid and means try writing at least once, as much data as possible.
Suggested implementation should try to write to io
in a non-blocking manner and call io_wait
if the io
is not ready (which will yield control to other fibers).
See IO::Buffer
for an interface available to get data from buffer efficiently.
Expected to return number of bytes written, or, in case of an error, -errno
(negated number corresponding to system’s error code).
The method should be considered experimental.
Generates a random prime number of bit length bits. If safe is set to true
, generates a safe prime. If add is specified, generates a prime that fulfills condition p % add = rem
.
Performs a Miller-Rabin probabilistic primality test for bn
.
Deprecated in version 3.0. Use prime?
instead.
checks
and trial_div
parameters no longer have any effect.
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
Write value to a registry value named name.
The value type is REG_SZ(write_s
), REG_DWORD(write_i
), or REG_BINARY(write_bin
).
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"
Read a chunk or all of the buffer into a string, in the specified encoding
. If no encoding is provided Encoding::BINARY
is used.
buffer = IO::Buffer.for('test') buffer.get_string # => "test" buffer.get_string(2) # => "st" buffer.get_string(2, 1) # => "s"
It returns recorded script lines if it is availalble. The script lines are not limited to the iseq range, but are entire lines of the source file.
Note that this is an API for ruby internal use, debugging, and research. Do not use this for any other purpose. The compatibility is not guaranteed.