Results for: "Array"

Generates a new key (pair).

If a String is given as the first argument, it generates a new random key for the algorithm specified by the name just as ::generate_parameters does. If an OpenSSL::PKey::PKey is given instead, it generates a new random key for the same algorithm as the key, using the parameters the key contains.

See ::generate_parameters for the details of options and the given block.

Example

pkey_params = OpenSSL::PKey.generate_parameters("DSA", "dsa_paramgen_bits" => 2048)
pkey_params.priv_key #=> nil
pkey = OpenSSL::PKey.generate_key(pkey_params)
pkey.priv_key #=> #<OpenSSL::BN 6277...

Mixes the bytes from str into the Pseudo Random Number Generator(PRNG) state.

Thus, if the data from str are unpredictable to an adversary, this increases the uncertainty about the state and makes the PRNG output less predictable.

The entropy argument is (the lower bound of) an estimate of how much randomness is contained in str, measured in bytes.

Example

pid = $$
now = Time.now
ary = [now.to_i, now.nsec, 1000, pid]
OpenSSL::Random.add(ary.join, 0.0)
OpenSSL::Random.seed(ary.join)

Generates a String with length number of cryptographically strong pseudo-random bytes.

Example

OpenSSL::Random.random_bytes(12)
#=> "..."

Returns an Array of individual raw profile data Hashes ordered from earliest to latest by :GC_INVOKE_TIME.

For example:

[
  {
     :GC_TIME=>1.3000000000000858e-05,
     :GC_INVOKE_TIME=>0.010634999999999999,
     :HEAP_USE_SIZE=>289640,
     :HEAP_TOTAL_SIZE=>588960,
     :HEAP_TOTAL_OBJECTS=>14724,
     :GC_IS_MARKED=>false
  },
  # ...
]

The keys mean:

:GC_TIME

Time elapsed in seconds for this GC run

:GC_INVOKE_TIME

Time elapsed in seconds from startup to when the GC was invoked

:HEAP_USE_SIZE

Total bytes of heap used

:HEAP_TOTAL_SIZE

Total size of heap in bytes

:HEAP_TOTAL_OBJECTS

Total number of objects

:GC_IS_MARKED

Returns true if the GC is in mark phase

If ruby was built with GC_PROFILE_MORE_DETAIL, you will also have access to the following hash keys:

:GC_MARK_TIME

:GC_SWEEP_TIME

:ALLOCATE_INCREASE

:ALLOCATE_LIMIT

:HEAP_USE_PAGES

:HEAP_LIVE_OBJECTS

:HEAP_FREE_OBJECTS

:HAVE_FINALIZE

Get the raw cookies as a string.

Get the raw RFC2965 cookies as a string.

Parses multipart form elements according to

http://www.w3.org/TR/html401/interact/forms.html#h-17.13.4.2

Returns a hash of multipart form parameters with bodies of type StringIO or Tempfile depending on whether the multipart form element exceeds 10 KB

params[name => body]

Generate a Form element with multipart encoding as a String.

Multipart encoding is used for forms that include file uploads.

action is the action to perform. enctype is the encoding type, which defaults to “multipart/form-data”.

Alternatively, the attributes can be specified as a hash.

multipart_form{ "string" }
  # <FORM METHOD="post" ENCTYPE="multipart/form-data">string</FORM>

multipart_form("url") { "string" }
  # <FORM METHOD="post" ACTION="url" ENCTYPE="multipart/form-data">string</FORM>

Generates a radio-button Input element.

name is the name of the input field. value is the value of the field if checked. checked specifies whether the field starts off checked.

Alternatively, the attributes can be specified as a hash.

radio_button("name", "value")
  # <INPUT TYPE="radio" NAME="name" VALUE="value">

radio_button("name", "value", true)
  # <INPUT TYPE="radio" NAME="name" VALUE="value" CHECKED>

radio_button("NAME" => "name", "VALUE" => "value", "ID" => "foo")
  # <INPUT TYPE="radio" NAME="name" VALUE="value" ID="foo">

Generate a sequence of radio button Input elements, as a String.

This works the same as checkbox_group(). However, it is not valid to have more than one radiobutton in a group checked.

radio_group("name", "foo", "bar", "baz")
  # <INPUT TYPE="radio" NAME="name" VALUE="foo">foo
  # <INPUT TYPE="radio" NAME="name" VALUE="bar">bar
  # <INPUT TYPE="radio" NAME="name" VALUE="baz">baz

radio_group("name", ["foo"], ["bar", true], "baz")
  # <INPUT TYPE="radio" NAME="name" VALUE="foo">foo
  # <INPUT TYPE="radio" CHECKED NAME="name" VALUE="bar">bar
  # <INPUT TYPE="radio" NAME="name" VALUE="baz">baz

radio_group("name", ["1", "Foo"], ["2", "Bar", true], "Baz")
  # <INPUT TYPE="radio" NAME="name" VALUE="1">Foo
  # <INPUT TYPE="radio" CHECKED NAME="name" VALUE="2">Bar
  # <INPUT TYPE="radio" NAME="name" VALUE="Baz">Baz

radio_group("NAME" => "name",
              "VALUES" => ["foo", "bar", "baz"])

radio_group("NAME" => "name",
              "VALUES" => [["foo"], ["bar", true], "baz"])

radio_group("NAME" => "name",
              "VALUES" => [["1", "Foo"], ["2", "Bar", true], "Baz"])

Sets the HTTP Range: header. Accepts either a Range object as a single argument, or a beginning index and a length from that index. Example:

req.range = (0..1023)
req.set_range 0, 1023

Returns a Range object which represents the value of the Content-Range: header field. For a partial entity body, this indicates where this fragment fits inside the full entity body, as range of byte offsets.

The length of the range represented in Content-Range: header.

Random::Formatter#random_bytes generates a random binary string.

The argument n specifies the length of the result string.

If n is not specified or is nil, 16 is assumed. It may be larger in future.

The result may contain any byte: “x00” - “xff”.

require 'random/formatter'

prng.random_bytes #=> "\xD8\\\xE0\xF4\r\xB2\xFC*WM\xFF\x83\x18\xF45\xB6"
prng.random_bytes #=> "m\xDC\xFC/\a\x00Uf\xB2\xB2P\xBD\xFF6S\x97"

Generates formatted random number from raw random bytes. See Random#rand.

Displays an error statement to the error output location. Asks a question if given.

Displays a warning statement to the warning output location. Asks a question if given.

Terminates the RubyGems process with the given exit_code

Set the effective user ID, and if possible, the saved user ID of the process to the given user. Returns the new effective user ID. Not available on all platforms.

[Process.uid, Process.euid]          #=> [0, 0]
Process::UID.grant_privilege(31)     #=> 31
[Process.uid, Process.euid]          #=> [0, 31]

Set the effective group ID, and if possible, the saved group ID of the process to the given group. Returns the new effective group ID. Not available on all platforms.

[Process.gid, Process.egid]          #=> [0, 0]
Process::GID.grant_privilege(31)     #=> 33
[Process.gid, Process.egid]          #=> [0, 33]

Generates a valid JSON document from object obj and returns the result. If no valid JSON document can be created this method raises a GeneratorError exception.