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require 'rubygems'
require 'ffi_yajl/encoder'
require 'ffi_yajl/parser'
require 'ffi'
require 'libyajl2'
require 'ffi_yajl/platform'
module FFI_Yajl
# FIXME: DRY with ffi_yajl/ffi.rb
# FIXME: extract map_library_name from FFI and stop requiring it at the top level
# so that the C-library can be installed without FFI
libname = ::FFI.map_library_name("yajl")
# awful windows patch, but there is an open issue to entirely replace FFI.map_library_name already
libname = "libyajl.so" if Platform::windows?
libpath = File.expand_path(File.join(Libyajl2.opt_path, libname))
libpath.gsub!(/dylib/, 'bundle')
libpath = ::FFI.map_library_name("yajl") unless File.exist?(libpath)
#
# FFS, what exactly was so wrong with DL.dlopen that ruby had to get rid of it???
#
def self.try_fiddle_dlopen(libpath)
require 'fiddle'
if defined?(Fiddle) && Fiddle.respond_to?(:dlopen)
::Fiddle.dlopen(libpath)
true
else
false
end
rescue LoadError
return false
end
def self.try_dl_dlopen(libpath)
require 'dl'
if defined?(DL) && DL.respond_to?(:dlopen)
::DL.dlopen(libpath)
true
else
false
end
rescue LoadError
return false
end
def self.try_ffi_dlopen(libpath)
require 'ffi'
require 'rbconfig'
extend ::FFI::Library
ffi_lib 'dl'
attach_function 'dlopen', :dlopen, [:string, :int], :void
if RbConfig::CONFIG['host_os'] =~ /linux/i
dlopen libpath, 0x102 # linux: RTLD_GLOBAL | RTLD_NOW
else
dlopen libpath, 0
end
true
rescue LoadError
return false
end
unless try_fiddle_dlopen(libpath) || try_dl_dlopen(libpath) || try_ffi_dlopen(libpath)
raise "cannot find dlopen via Fiddle, DL or FFI, what am I supposed to do?"
end
class Parser
require 'ffi_yajl/ext/parser'
include FFI_Yajl::Ext::Parser
end
class Encoder
require 'ffi_yajl/ext/encoder'
include FFI_Yajl::Ext::Encoder
end
end
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