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require 'rubygems'
require 'libyajl2'
begin
require 'ffi'
rescue LoadError
$stderr.puts "FATAL: to use the ffi extension instead of the compiled C extension, the ffi gem must be installed"
$stderr.puts " (it is optional, so you must include it in your bundle manually)"
exit 1
end
require 'ffi_yajl/map_library_name'
module FFI_Yajl
extend ::FFI::Library
extend FFI_Yajl::MapLibraryName
libname = map_library_name
libpath = File.expand_path(File.join(Libyajl2.opt_path, libname))
if File.file?(libpath)
# use our vendored version of libyajl2 if we find it installed
ffi_lib libpath
else
ffi_lib 'yajl'
end
class YajlCallbacks < ::FFI::Struct
layout :yajl_null, :pointer,
:yajl_boolean, :pointer,
:yajl_integer, :pointer,
:yajl_double, :pointer,
:yajl_number, :pointer,
:yajl_string, :pointer,
:yajl_start_map, :pointer,
:yajl_map_key, :pointer,
:yajl_end_map, :pointer,
:yajl_start_array, :pointer,
:yajl_end_array, :pointer
end
enum :yajl_status, [
:yajl_status_ok,
:yajl_status_client_canceled,
:yajl_status_insufficient_data,
:yajl_status_error,
]
# FFI::Enums are slow, should remove the rest
# enum :yajl_gen_status, [
# :yajl_gen_status_ok,
# :yajl_gen_keys_must_be_strings,
# :yajl_max_depth_exceeded,
# :yajl_gen_in_error_state,
# :yajl_gen_generation_complete,
# :yajl_gen_invalid_number,
# :yajl_gen_no_buf,
# ]
enum :yajl_option, [
:yajl_allow_comments, 0x01,
:yajl_dont_validate_strings, 0x02,
:yajl_allow_trailing_garbage, 0x04,
:yajl_allow_multiple_values, 0x08,
:yajl_allow_partial_values, 0x10,
]
enum :yajl_gen_option, [
:yajl_gen_beautify, 0x01,
:yajl_gen_indent_string, 0x02,
:yajl_gen_print_callback, 0x04,
:yajl_gen_validate_utf8, 0x08,
]
typedef :pointer, :yajl_handle
typedef :pointer, :yajl_gen
# yajl uses unsinged char *'s consistently
typedef :pointer, :ustring_pointer
typedef :string, :ustring
# const char *yajl_status_to_string (yajl_status code)
attach_function :yajl_status_to_string, [ :yajl_status ], :string
# yajl_handle yajl_alloc(const yajl_callbacks * callbacks, yajl_alloc_funcs * afs, void * ctx)
attach_function :yajl_alloc, [:pointer, :pointer, :pointer], :yajl_handle
# void yajl_free (yajl_handle handle)
attach_function :yajl_free, [:yajl_handle], :void
# yajl_status yajl_parse (yajl_handle hand, const unsigned char *jsonText, unsigned int jsonTextLength)
attach_function :yajl_parse, [:yajl_handle, :ustring, :uint], :yajl_status
# yajl_status yajl_parse_complete (yajl_handle hand)
attach_function :yajl_complete_parse, [:yajl_handle], :yajl_status
# unsigned char *yajl_get_error (yajl_handle hand, int verbose, const unsigned char *jsonText, unsigned int jsonTextLength)
attach_function :yajl_get_error, [:yajl_handle, :int, :ustring, :int], :ustring
# void yajl_free_error (yajl_handle hand, unsigned char *str)
attach_function :yajl_free_error, [:yajl_handle, :ustring], :void
#
attach_function :yajl_config, [:yajl_handle, :yajl_option, :varargs], :int
attach_function :yajl_gen_config, [:yajl_gen, :yajl_gen_option, :varargs], :int
# yajl_gen yajl_gen_alloc (const yajl_alloc_funcs *allocFuncs)
attach_function :yajl_gen_alloc, [:pointer], :yajl_gen
# yajl_gen yajl_gen_alloc2 (const yajl_print_t callback, const yajl_gen_config *config, const yajl_alloc_funcs *allocFuncs, void *ctx)
# attach_function :yajl_gen_alloc2, [:pointer, :pointer, :pointer, :pointer], :yajl_gen
# void yajl_gen_free (yajl_gen handle)
attach_function :yajl_gen_free, [:yajl_gen], :void
attach_function :yajl_gen_integer, [:yajl_gen, :long_long], :int
attach_function :yajl_gen_double, [:yajl_gen, :double], :int
attach_function :yajl_gen_number, [:yajl_gen, :ustring, :int], :int
attach_function :yajl_gen_string, [:yajl_gen, :ustring, :int], :int
attach_function :yajl_gen_null, [:yajl_gen], :int
attach_function :yajl_gen_bool, [:yajl_gen, :int], :int
attach_function :yajl_gen_map_open, [:yajl_gen], :int
attach_function :yajl_gen_map_close, [:yajl_gen], :int
attach_function :yajl_gen_array_open, [:yajl_gen], :int
attach_function :yajl_gen_array_close, [:yajl_gen], :int
# yajl_gen_status yajl_gen_get_buf (yajl_gen hand, const unsigned char **buf, unsigned int *len)
attach_function :yajl_gen_get_buf, [:yajl_gen, :pointer ,:pointer], :int
# void yajl_gen_clear (yajl_gen hand)
attach_function :yajl_gen_clear, [:yajl_gen], :void
end
require 'ffi_yajl/encoder'
require 'ffi_yajl/parser'
module FFI_Yajl
class Parser
require 'ffi_yajl/ffi/parser'
include FFI_Yajl::FFI::Parser
end
class Encoder
require 'ffi_yajl/ffi/encoder'
include FFI_Yajl::FFI::Encoder
end
end
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