1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
# frozen_string_literal: true
require 'fiddle.so' unless RUBY_ENGINE == 'jruby'
require 'fiddle/jruby' if RUBY_ENGINE == 'jruby'
require 'fiddle/closure'
require 'fiddle/function'
require 'fiddle/version'
module Fiddle
if WINDOWS
# Returns the last win32 +Error+ of the current executing +Thread+ or nil
# if none
def self.win32_last_error
if RUBY_ENGINE == 'jruby'
errno = FFI.errno
errno == 0 ? nil : errno
else
Thread.current[:__FIDDLE_WIN32_LAST_ERROR__]
end
end
# Sets the last win32 +Error+ of the current executing +Thread+ to +error+
def self.win32_last_error= error
if RUBY_ENGINE == 'jruby'
errno = FFI.errno
errno == 0 ? nil : errno
else
Thread.current[:__FIDDLE_WIN32_LAST_ERROR__] = error
end
end
# Returns the last win32 socket +Error+ of the current executing
# +Thread+ or nil if none
def self.win32_last_socket_error
if RUBY_ENGINE == 'jruby'
errno = FFI.errno
errno == 0 ? nil : errno
else
Thread.current[:__FIDDLE_WIN32_LAST_SOCKET_ERROR__]
end
end
# Sets the last win32 socket +Error+ of the current executing
# +Thread+ to +error+
def self.win32_last_socket_error= error
if RUBY_ENGINE == 'jruby'
errno = FFI.errno
errno == 0 ? nil : errno
else
Thread.current[:__FIDDLE_WIN32_LAST_SOCKET_ERROR__] = error
end
end
end
# Returns the last +Error+ of the current executing +Thread+ or nil if none
def self.last_error
if RUBY_ENGINE == 'jruby'
errno = FFI.errno
errno == 0 ? nil : errno
errno
else
Thread.current[:__FIDDLE_LAST_ERROR__]
end
end
# Sets the last +Error+ of the current executing +Thread+ to +error+
def self.last_error= error
if RUBY_ENGINE == 'jruby'
FFI.errno = error || 0
else
Thread.current[:__DL2_LAST_ERROR__] = error
Thread.current[:__FIDDLE_LAST_ERROR__] = error
end
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
|
