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Versions: 6
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Contents
module ICU
module Lib
module Util
def self.read_null_terminated_array_of_strings(pointer)
offset = 0
result = []
until (ptr = pointer.get_pointer(offset)).null?
result << ptr.read_string
offset += FFI::Pointer.size
end
result
end
def self.read_string_buffer(length)
attempts = 0
begin
result = FFI::MemoryPointer.new(:char, length)
Lib.check_error { |status| length = yield result, status }
rescue BufferOverflowError
attempts += 1
retry if attempts < 2
raise BufferOverflowError, "needed: #{length}"
end
result.read_string(length)
end
def self.read_uchar_buffer(length, &blk)
buf, len = read_uchar_buffer_as_ptr_impl(length, &blk)
buf.string(len)
end
def self.read_uchar_buffer_as_ptr(length, &blk)
buf, _ = read_uchar_buffer_as_ptr_impl(length, &blk)
buf
end
private
def self.read_uchar_buffer_as_ptr_impl(length)
attempts = 0
begin
result = UCharPointer.new(length)
Lib.check_error { |status| length = yield result, status }
rescue BufferOverflowError
attempts += 1
retry if attempts < 2
raise BufferOverflowError, "needed: #{length}"
end
[result, length]
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems