See Process#getpriority.
Process.setpriority(Process::PRIO_USER, 0, 19) #=> 0 Process.setpriority(Process::PRIO_PROCESS, 0, 19) #=> 0 Process.getpriority(Process::PRIO_USER, 0) #=> 19 Process.getpriority(Process::PRIO_PROCESS, 0) #=> 19
Get the URI of the remote object.
Get the URI of the remote object.
Quietly ensure the Gem directory dir contains all the proper subdirectories. If we can’t create a directory due to a permission problem, then we will silently continue.
If mode is given, missing directories are created with this mode.
World-writable directories will never be created.
primitive_errinfo returns important information regarding the last error as a 5-element array:
[result, enc1, enc2, error_bytes, readagain_bytes]
result is the last result of primitive_convert.
Other elements are only meaningful when result is :invalid_byte_sequence, :incomplete_input or :undefined_conversion.
enc1 and enc2 indicate a conversion step as a pair of strings. For example, a converter from EUC-JP to ISO-8859-1 converts a string as follows: EUC-JP -> UTF-8 -> ISO-8859-1. So [enc1, enc2] is either [“EUC-JP”, “UTF-8”] or [“UTF-8”, “ISO-8859-1”].
error_bytes and readagain_bytes indicate the byte sequences which caused the error. error_bytes is discarded portion. readagain_bytes is buffered portion which is read again on next conversion.
Example:
# \xff is invalid as EUC-JP. ec = Encoding::Converter.new("EUC-JP", "Shift_JIS") ec.primitive_convert(src="\xff", dst="", nil, 10) p ec.primitive_errinfo #=> [:invalid_byte_sequence, "EUC-JP", "UTF-8", "\xFF", ""] # HIRAGANA LETTER A (\xa4\xa2 in EUC-JP) is not representable in ISO-8859-1. # Since this error is occur in UTF-8 to ISO-8859-1 conversion, # error_bytes is HIRAGANA LETTER A in UTF-8 (\xE3\x81\x82). ec = Encoding::Converter.new("EUC-JP", "ISO-8859-1") ec.primitive_convert(src="\xa4\xa2", dst="", nil, 10) p ec.primitive_errinfo #=> [:undefined_conversion, "UTF-8", "ISO-8859-1", "\xE3\x81\x82", ""] # partial character is invalid ec = Encoding::Converter.new("EUC-JP", "ISO-8859-1") ec.primitive_convert(src="\xa4", dst="", nil, 10) p ec.primitive_errinfo #=> [:incomplete_input, "EUC-JP", "UTF-8", "\xA4", ""] # Encoding::Converter::PARTIAL_INPUT prevents invalid errors by # partial characters. ec = Encoding::Converter.new("EUC-JP", "ISO-8859-1") ec.primitive_convert(src="\xa4", dst="", nil, 10, Encoding::Converter::PARTIAL_INPUT) p ec.primitive_errinfo #=> [:source_buffer_empty, nil, nil, nil, nil] # \xd8\x00\x00@ is invalid as UTF-16BE because # no low surrogate after high surrogate (\xd8\x00). # It is detected by 3rd byte (\00) which is part of next character. # So the high surrogate (\xd8\x00) is discarded and # the 3rd byte is read again later. # Since the byte is buffered in ec, it is dropped from src. ec = Encoding::Converter.new("UTF-16BE", "UTF-8") ec.primitive_convert(src="\xd8\x00\x00@", dst="", nil, 10) p ec.primitive_errinfo #=> [:invalid_byte_sequence, "UTF-16BE", "UTF-8", "\xD8\x00", "\x00"] p src #=> "@" # Similar to UTF-16BE, \x00\xd8@\x00 is invalid as UTF-16LE. # The problem is detected by 4th byte. ec = Encoding::Converter.new("UTF-16LE", "UTF-8") ec.primitive_convert(src="\x00\xd8@\x00", dst="", nil, 10) p ec.primitive_errinfo #=> [:invalid_byte_sequence, "UTF-16LE", "UTF-8", "\x00\xD8", "@\x00"] p src #=> ""
Temporarily turn off warnings. Intended for tests only.
Temporarily turn off warnings. Intended for tests only.
Quietly ensure the Gem directory dir contains all the proper subdirectories for handling default gems. If we can’t create a directory due to a permission problem, then we will silently continue.
If mode is given, missing directories are created with this mode.
World-writable directories will never be created.
Returns the security level for the context.
See also OpenSSL::SSL::SSLContext#security_level=.
Sets the security level for the context. OpenSSL limits parameters according to the level. The “parameters” include: ciphersuites, curves, key sizes, certificate signature algorithms, protocol version and so on. For example, level 1 rejects parameters offering below 80 bits of security, such as ciphersuites using MD5 for the MAC or RSA keys shorter than 1024 bits.
Note that attempts to set such parameters with insufficient security are also blocked. You need to lower the level first.
This feature is not supported in OpenSSL < 1.1.0, and setting the level to other than 0 will raise NotImplementedError. Level 0 means everything is permitted, the same behavior as previous versions of OpenSSL.
See the manpage of SSL_CTX_set_security_level(3) for details.
Extracts the certificate chain from the spec and calls verify to ensure the signatures and certificate chain is valid according to the policy..
Returns the index of the last object in self == to obj.
If a block is given instead of an argument, returns the index of the first object for which the block returns true, starting from the last object.
Returns nil if no match is found.
See also Array#index.
If neither block nor argument is given, an Enumerator is returned instead.
a = [ "a", "b", "b", "b", "c" ] a.rindex("b") #=> 3 a.rindex("z") #=> nil a.rindex {|x| x == "b"} #=> 3
Returns true if self is a prime number, else returns false.
Returns the index of the last occurrence of the given substring or pattern (regexp) in str. Returns nil if not found. If the second parameter is present, it specifies the position in the string to end the search—characters beyond this point will not be considered.
"hello".rindex('e') #=> 1 "hello".rindex('l') #=> 3 "hello".rindex('a') #=> nil "hello".rindex(?e) #=> 1 "hello".rindex(/[aeiou]/, -2) #=> 1
Returns a copy of the receiver with leading and trailing whitespace removed.
Whitespace is defined as any of the following characters: null, horizontal tab, line feed, vertical tab, form feed, carriage return, space.
" hello ".strip #=> "hello" "\tgoodbye\r\n".strip #=> "goodbye" "\x00\t\n\v\f\r ".strip #=> "" "hello".strip #=> "hello"
Returns a copy of the receiver with leading whitespace removed. See also String#rstrip and String#strip.
Refer to String#strip for the definition of whitespace.
" hello ".lstrip #=> "hello " "hello".lstrip #=> "hello"
Returns a copy of the receiver with trailing whitespace removed. See also String#lstrip and String#strip.
Refer to String#strip for the definition of whitespace.
" hello ".rstrip #=> " hello" "hello".rstrip #=> "hello"
Removes leading and trailing whitespace from the receiver. Returns the altered receiver, or nil if there was no change.
Refer to String#strip for the definition of whitespace.
" hello ".strip! #=> "hello" "hello".strip! #=> nil
Removes leading whitespace from the receiver. Returns the altered receiver, or nil if no change was made. See also String#rstrip! and String#strip!.
Refer to String#strip for the definition of whitespace.
" hello ".lstrip! #=> "hello " "hello ".lstrip! #=> nil "hello".lstrip! #=> nil