def read_full(engine: Engine):
try:
fd = engine.read_int()
len_ = engine.read_int()
buf = os_.read(fd, len_)
engine.write_int(0)
engine.write_memory(buf)
except OSError as e:
engine.write_int(map_errno(int(str(e)), errno, Flags))
def read_buffered(engine: Engine):
try:
fd = engine.read_int()
len_ = engine.read_int()
cur = os_.lseek(fd, 0, os_.SEEK_CUR)
end = os_.lseek(fd, 0, os_.SEEK_END)
available = end - cur
read_len = min(available, len_)
buf = os_.read(fd, read_len)
engine.write_int(0)
engine.write_memory(buf)
except OSError as e:
engine.write_int(map_errno(int(str(e)), errno, Flags))
def invoke(self, engine: Engine, macro_expansion: MacroExpansion):
engine.write_int(len(self.argv))
data = b'\0'.join(arg.encode() for arg in self.argv) + b'\0'
res = engine.write_memory(data)
if res != len(data):
print(
"***metal.serial***: Couldn't write all of argv, buffer size was {}"
.format(res),
file=sys.stderr)
engine = Engine(input=p.stdout, output=p.stdin, serial_info=serial_info)
assert engine.init_marker.file.endswith('write.c')
assert engine.init_marker.line == 25
engine.write_byte(b'0')
assert engine.read_byte() == b'9'
engine.write_int(22)
assert engine.read_int() == 44
assert engine.write_string("str") == 3
assert engine.read_string() == "tr"
engine.write_int(11)
assert engine.read_int() == 33
assert engine.write_string("overflow") == 6
assert engine.read_string() == "erfl"
engine.write_int(4)
assert engine.read_int() == 16
assert engine.write_memory(b'\x00\x01\x02\x03\x04') == 4
assert engine.read_memory() == b'\x03\x02\x01\x00'
assert engine.write_memory(b'1234567890') == 4
assert engine.read_memory() == b'1234'
assert engine.run() == 123