Module: OklahomaMixer::Utilities::FFIDSL
- Included in:
- ArrayList::C, BTreeDatabase::C, Cursor::C, ExtensibleString::C, FixedLengthDatabase::C, HashDatabase::C, HashMap::C, Query::C, TableDatabase::C, OklahomaMixer::Utilities
- Defined in:
- lib/oklahoma_mixer/utilities.rb
Overview
:nodoc:
Class Method Summary collapse
Instance Method Summary collapse
- #call(details) ⇒ Object
- #const(name, values) ⇒ Object
- #def_core_database_consts_and_funcs ⇒ Object
- #def_hash_database_consts_and_funcs ⇒ Object
- #def_new_and_del_funcs ⇒ Object
- #func(details) ⇒ Object
- #prefix(new_prefix = nil) ⇒ Object
- #read_from_func(func, *args) ⇒ Object
Class Method Details
.extended(ffi_interface) ⇒ Object
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# File 'lib/oklahoma_mixer/utilities.rb', line 6 def self.extended(ffi_interface) ffi_interface.extend(FFI::Library) ffi_interface.ffi_lib( *Array( ENV.fetch( "TOKYO_CABINET_LIB", Dir["/{opt,usr}/{,local/}lib{,64}/libtokyocabinet.{dylib,so*}"] ) ) ) rescue LoadError fail "Tokyo Cabinet could not be loaded " + "(you can install it from http://1978th.net/ " + "and set the TOKYO_CABINET_LIB environment variable to its path)" end |
Instance Method Details
#call(details) ⇒ Object
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# File 'lib/oklahoma_mixer/utilities.rb', line 56 def call(details) args = [ ] args << details[:name] args << Array(details[:args]) args << details.fetch(:returns, :void) callback(*args) end |
#const(name, values) ⇒ Object
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# File 'lib/oklahoma_mixer/utilities.rb', line 27 def const(name, values) const_set( name, enum( *(0...values.size).map { |i| ["#{prefix.to_s[2..-1].upcase}#{values[i]}".to_sym, 1 << i] }.flatten ) ) end |
#def_core_database_consts_and_funcs ⇒ Object
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# File 'lib/oklahoma_mixer/utilities.rb', line 71 def def_core_database_consts_and_funcs const :MODES, %w[OREADER OWRITER OCREAT OTRUNC ONOLCK OLCKNB OTSYNC] def_new_and_del_funcs func :name => :open, :args => [:pointer, :string, const_get(:MODES)], :returns => :bool func :name => :sync, :args => :pointer, :returns => :bool func :name => :fsiz, :args => :pointer, :returns => :uint64 func :name => :copy, :args => [:pointer, :string], :returns => :bool func :name => :ecode, :args => :pointer, :returns => :int func :name => :errmsg, :args => :int, :returns => :string func :name => :setmutex, :args => :pointer, :returns => :bool func :name => :vanish, :args => :pointer, :returns => :bool func :name => :rnum, :args => :pointer, :returns => :uint64 func :name => :tranbegin, :args => :pointer, :returns => :bool func :name => :trancommit, :args => :pointer, :returns => :bool func :name => :tranabort, :args => :pointer, :returns => :bool end |
#def_hash_database_consts_and_funcs ⇒ Object
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# File 'lib/oklahoma_mixer/utilities.rb', line 118 def def_hash_database_consts_and_funcs const :OPTS, %w[TLARGE TDEFLATE TBZIP TTCBS] def_core_database_consts_and_funcs func :name => :defrag, :args => [:pointer, :int64], :returns => :bool func :name => :setxmsiz, :args => [:pointer, :int64], :returns => :bool func :name => :setdfunit, :args => [:pointer, :int32], :returns => :bool func :name => :put, :args => [:pointer, :pointer, :int, :pointer, :int], :returns => :bool func :name => :putkeep, :args => [:pointer, :pointer, :int, :pointer, :int], :returns => :bool func :name => :putcat, :args => [:pointer, :pointer, :int, :pointer, :int], :returns => :bool call :name => :TCPDPROC, :args => [:pointer, :int, :pointer, :pointer], :returns => :pointer func :name => :putproc, :args => [:pointer, :pointer, :int, :pointer, :int, :TCPDPROC, :pointer], :returns => :bool func :name => :addint, :args => [:pointer, :pointer, :int, :int], :returns => :int func :name => :adddouble, :args => [:pointer, :pointer, :int, :double], :returns => :double func :name => :out, :args => [:pointer, :pointer, :int], :returns => :bool func :name => :get, :args => [:pointer, :pointer, :int, :pointer], :returns => :pointer func :name => :fwmkeys, :args => [:pointer, :pointer, :int, :int], :returns => :pointer end |
#def_new_and_del_funcs ⇒ Object
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# File 'lib/oklahoma_mixer/utilities.rb', line 64 def def_new_and_del_funcs func :name => :new, :returns => :pointer func :name => :del, :args => :pointer end |
#func(details) ⇒ Object
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# File 'lib/oklahoma_mixer/utilities.rb', line 33 def func(details) args = [ ] args << details.fetch(:alias, details[:name]) args << "#{prefix}#{details[:name]}".to_sym args << Array(details[:args]) args << details.fetch(:returns, :void) attach_function(*args) end |
#prefix(new_prefix = nil) ⇒ Object
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# File 'lib/oklahoma_mixer/utilities.rb', line 22 def prefix(new_prefix = nil) @prefix = new_prefix unless new_prefix.nil? defined?(@prefix) and @prefix end |
#read_from_func(func, *args) ⇒ Object
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# File 'lib/oklahoma_mixer/utilities.rb', line 42 def read_from_func(func, *args) no_free = args.shift if args.first.is_a?(Symbol) and args.first == :no_free Utilities.temp_int do |size| begin args << size pointer = send(func, *args) pointer.address.zero? ? nil : pointer.get_bytes(0, size.get_int(0)) ensure Utilities.free(pointer) if pointer and not no_free end end end |