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|
# coding: US-ASCII
# frozen_string_literal: true
begin
require_relative 'helper'
require 'fiddle/import'
rescue LoadError
end
module Fiddle
module LIBC
extend Importer
dlload LIBC_SO, LIBM_SO
typealias 'string', 'char*'
typealias 'FILE*', 'void*'
extern "void *strcpy(char*, char*)"
extern "int isdigit(int)"
extern "double atof(string)"
extern "unsigned long strtoul(char*, char **, int)"
extern "int qsort(void*, unsigned long, unsigned long, void*)"
extern "int fprintf(FILE*, char*)" rescue nil
extern "int gettimeofday(timeval*, timezone*)" rescue nil
BoundQsortCallback = bind("void *bound_qsort_callback(void*, void*)"){|ptr1,ptr2| ptr1[0] <=> ptr2[0]}
Timeval = struct [
"long tv_sec",
"long tv_usec",
]
Timezone = struct [
"int tz_minuteswest",
"int tz_dsttime",
]
MyStruct = struct [
"short num[5]",
"char c",
"unsigned char buff[7]",
]
CallCallback = bind("void call_callback(void*, void*)"){ | ptr1, ptr2|
f = Function.new(ptr1.to_i, [TYPE_VOIDP], TYPE_VOID)
f.call(ptr2)
}
end
class TestImport < TestCase
def test_ensure_call_dlload
err = assert_raise(RuntimeError) do
Class.new do
extend Importer
extern "void *strcpy(char*, char*)"
end
end
assert_match(/call dlload before/, err.message)
end
def test_struct_memory_access()
# check memory operations performed directly on struct
my_struct = Fiddle::Importer.struct(['int id']).malloc
my_struct[0, Fiddle::SIZEOF_INT] = "\x01".b * Fiddle::SIZEOF_INT
assert_equal 0x01010101, my_struct.id
my_struct.id = 0
assert_equal "\x00".b * Fiddle::SIZEOF_INT, my_struct[0, Fiddle::SIZEOF_INT]
end
def test_struct_ptr_array_subscript_multiarg()
# check memory operations performed on struct#to_ptr
struct = Fiddle::Importer.struct([ 'int x' ]).malloc
ptr = struct.to_ptr
struct.x = 0x02020202
assert_equal("\x02".b * Fiddle::SIZEOF_INT, ptr[0, Fiddle::SIZEOF_INT])
ptr[0, Fiddle::SIZEOF_INT] = "\x01".b * Fiddle::SIZEOF_INT
assert_equal 0x01010101, struct.x
end
def test_malloc()
s1 = LIBC::Timeval.malloc()
s2 = LIBC::Timeval.malloc()
refute_equal(s1.to_ptr.to_i, s2.to_ptr.to_i)
end
def test_sizeof()
assert_equal(SIZEOF_VOIDP, LIBC.sizeof("FILE*"))
assert_equal(LIBC::MyStruct.size(), LIBC.sizeof(LIBC::MyStruct))
assert_equal(LIBC::MyStruct.size(), LIBC.sizeof(LIBC::MyStruct.malloc()))
assert_equal(SIZEOF_LONG_LONG, LIBC.sizeof("long long")) if defined?(SIZEOF_LONG_LONG)
end
Fiddle.constants.grep(/\ATYPE_(?!VOID\z)(.*)/) do
type = $&
size = Fiddle.const_get("SIZEOF_#{$1}")
name = $1.sub(/P\z/,"*").gsub(/_(?!T\z)/, " ").downcase
define_method("test_sizeof_#{name}") do
assert_equal(size, Fiddle::Importer.sizeof(name), type)
end
end
def test_unsigned_result()
d = (2 ** 31) + 1
r = LIBC.strtoul(d.to_s, 0, 0)
assert_equal(d, r)
end
def test_io()
if( RUBY_PLATFORM != BUILD_RUBY_PLATFORM ) || !defined?(LIBC.fprintf)
return
end
io_in,io_out = IO.pipe()
LIBC.fprintf(io_out, "hello")
io_out.flush()
io_out.close()
str = io_in.read()
io_in.close()
assert_equal("hello", str)
end
def test_value()
i = LIBC.value('int', 2)
assert_equal(2, i.value)
d = LIBC.value('double', 2.0)
assert_equal(2.0, d.value)
ary = LIBC.value('int[3]', [0,1,2])
assert_equal([0,1,2], ary.value)
end
def test_struct()
s = LIBC::MyStruct.malloc()
s.num = [0,1,2,3,4]
s.c = ?a.ord
s.buff = "012345\377"
assert_equal([0,1,2,3,4], s.num)
assert_equal(?a.ord, s.c)
assert_equal([?0.ord,?1.ord,?2.ord,?3.ord,?4.ord,?5.ord,?\377.ord], s.buff)
end
def test_gettimeofday()
if( defined?(LIBC.gettimeofday) )
timeval = LIBC::Timeval.malloc()
timezone = LIBC::Timezone.malloc()
LIBC.gettimeofday(timeval, timezone)
cur = Time.now()
assert(cur.to_i - 2 <= timeval.tv_sec && timeval.tv_sec <= cur.to_i)
end
end
def test_strcpy()
buff = +"000"
str = LIBC.strcpy(buff, "123")
assert_equal("123", buff)
assert_equal("123", str.to_s)
end
def test_isdigit
r1 = LIBC.isdigit(?1.ord)
r2 = LIBC.isdigit(?2.ord)
rr = LIBC.isdigit(?r.ord)
assert_operator(r1, :>, 0)
assert_operator(r2, :>, 0)
assert_equal(0, rr)
end
def test_atof
r = LIBC.atof("12.34")
assert_includes(12.00..13.00, r)
end
def test_no_message_with_debug
assert_in_out_err(%w[--debug --disable=gems -rfiddle/import], 'p Fiddle::Importer', ['Fiddle::Importer'])
end
end
end if defined?(Fiddle)
|
