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require 'pathname'
require 'ffi'
require_relative 'platform'
module FFI
module Compiler
module Loader
def self.find(name, start_path = nil)
library = Platform.system.map_library_name(name)
root = false
Pathname.new(start_path || caller_path(caller[0])).ascend do |path|
Dir.glob("#{path}/**/{#{FFI::Platform::ARCH}-#{FFI::Platform::OS}/#{library},#{library}}") do |f|
return f
end
break if root
# Next iteration will be the root of the gem if this is the lib/ dir - stop after that
root = File.basename(path) == 'lib'
end
raise LoadError.new("cannot find '#{name}' library")
end
def self.caller_path(line = caller[0])
if FFI::Platform::OS == 'windows'
drive = line[0..1]
path = line[2..-1].split(/:/)[0]
full_path = drive + path
else
full_path = line.split(/:/)[0]
end
File.dirname full_path
end
end
end
end
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