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ruby--ruby/ext/fiddle/lib/fiddle.rb
hsbt 7f24b0aabd Merge fiddle-1.0.0.beta2 from upstream.
* ext/fiddle/closure.c: use directly declaration for standalone gem
    without internal.h.
  * Specify frozen string literal is true.
  * Update gemspec configuration for release version.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59854 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2017-09-12 11:52:23 +00:00

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1.7 KiB
Ruby

# frozen_string_literal: true
require 'fiddle.so'
require 'fiddle/function'
require 'fiddle/closure'
module Fiddle
if WINDOWS
# Returns the last win32 +Error+ of the current executing +Thread+ or nil
# if none
def self.win32_last_error
Thread.current[:__FIDDLE_WIN32_LAST_ERROR__]
end
# Sets the last win32 +Error+ of the current executing +Thread+ to +error+
def self.win32_last_error= error
Thread.current[:__FIDDLE_WIN32_LAST_ERROR__] = error
end
end
# Returns the last +Error+ of the current executing +Thread+ or nil if none
def self.last_error
Thread.current[:__FIDDLE_LAST_ERROR__]
end
# Sets the last +Error+ of the current executing +Thread+ to +error+
def self.last_error= error
Thread.current[:__DL2_LAST_ERROR__] = error
Thread.current[:__FIDDLE_LAST_ERROR__] = error
end
# call-seq: dlopen(library) => Fiddle::Handle
#
# Creates a new handler that opens +library+, and returns an instance of
# Fiddle::Handle.
#
# If +nil+ is given for the +library+, Fiddle::Handle::DEFAULT is used, which
# is the equivalent to RTLD_DEFAULT. See <code>man 3 dlopen</code> for more.
#
# lib = Fiddle.dlopen(nil)
#
# The default is dependent on OS, and provide a handle for all libraries
# already loaded. For example, in most cases you can use this to access
# +libc+ functions, or ruby functions like +rb_str_new+.
#
# See Fiddle::Handle.new for more.
def dlopen library
Fiddle::Handle.new library
end
module_function :dlopen
# Add constants for backwards compat
RTLD_GLOBAL = Handle::RTLD_GLOBAL # :nodoc:
RTLD_LAZY = Handle::RTLD_LAZY # :nodoc:
RTLD_NOW = Handle::RTLD_NOW # :nodoc:
end