Shortcut for logging an ERROR message
Will the logger output ERROR messages?
Formats arg for the logger
If arg is an Exception, it will format the error message and the back trace.
If arg responds to to_str, it will return it.
Otherwise it will return arg.inspect.
A SimpleServer only yields when you start it
Performs the standard operations for daemonizing a process. Runs a block, if given.
Adds listeners from address and port to the server. See WEBrick::Utils::create_listeners for details.
Starts the server and runs the block for each connection. This method does not return until the server is stopped from a signal handler or another thread using stop or shutdown.
If the block raises a subclass of StandardError the exception is logged and ignored. If an IOError or Errno::EBADF exception is raised the exception is ignored. If an Exception subclass is raised the exception is logged and re-raised which stops the server.
To completely shut down a server call shutdown from ensure:
server = WEBrick::GenericServer.new # or WEBrick::HTTPServer.new begin server.start ensure server.shutdown end
Converts the contents of the database to an in-memory Hash, then calls Hash#reject with the specified code block, returning a new Hash.
Replaces the contents of the database with the contents of the specified object. Takes any object which implements the each_pair method, including Hash and DBM objects.
Converts the contents of the database to an array of [key, value] arrays, and returns it.
Returns the bits in stat as a Integer. Poking around in these bits is platform dependent.
fork { exit 0xab } #=> 26566 Process.wait #=> 26566 sprintf('%04x', $?.to_i) #=> "ab00"
Show pid and exit status as a string.
system("false") p $?.to_s #=> "pid 12766 exit 1"
Returns the least significant eight bits of the return code of stat. Only available if exited? is true.
fork { } #=> 26572 Process.wait #=> 26572 $?.exited? #=> true $?.exitstatus #=> 0 fork { exit 99 } #=> 26573 Process.wait #=> 26573 $?.exited? #=> true $?.exitstatus #=> 99
Returns the replacement string.
ec = Encoding::Converter.new("euc-jp", "us-ascii") p ec.replacement #=> "?" ec = Encoding::Converter.new("euc-jp", "utf-8") p ec.replacement #=> "\uFFFD"
Sets the replacement string.
ec = Encoding::Converter.new("utf-8", "us-ascii", :undef => :replace) ec.replacement = "<undef>" p ec.convert("a \u3042 b") #=> "a <undef> b"
Resets the digest to the initial state and returns self.
This method is overridden by each implementation subclass.
If none is given, returns the resulting hash value of the digest, keeping the digest’s state.
If a string is given, returns the hash value for the given string, resetting the digest to the initial state before and after the process.
Returns the resulting hash value and resets the digest to the initial state.
If none is given, returns the resulting hash value of the digest in a hex-encoded form, keeping the digest’s state.
If a string is given, returns the hash value for the given string in a hex-encoded form, resetting the digest to the initial state before and after the process.
Returns the resulting hash value in a hex-encoded form and resets the digest to the initial state.
Returns digest_obj.hexdigest().
If none is given, returns the resulting hash value of the digest in a base64 encoded form, keeping the digest’s state.
If a string is given, returns the hash value for the given string in a base64 encoded form, resetting the digest to the initial state before and after the process.
In either case, the return value is properly padded with ‘=’ and contains no line feeds.
Returns the resulting hash value and resets the digest to the initial state.
Creates a class to wrap the C struct described by signature.
MyStruct = struct ['int i', 'char c']
Construct a new class given a C:
class klass (CUnion, CStruct, or other that provide an entity_class)
types (Fiddle::TYPE_INT, Fiddle::TYPE_SIZE_T, etc., see the C types constants)
corresponding members
Fiddle::Importer#struct and Fiddle::Importer#union wrap this functionality in an easy-to-use manner.
Example:
require 'fiddle/struct' require 'fiddle/cparser' include Fiddle::CParser types, members = parse_struct_signature(['int i','char c']) MyStruct = Fiddle::CStructBuilder.create(Fiddle::CUnion, types, members) obj = MyStruct.allocate