gameServer2/src/protocol/mod.rs
author Wuzzy <Wuzzy2@mail.ru>
Sun, 11 Mar 2018 21:38:08 +0100
changeset 13165 89a6b862e692
parent 12136 e25a82ce2374
child 13416 cdf69667593b
permissions -rw-r--r--
Bazooka/Grenade Training: Make weapon selection detection future-proof The old check relied on hardcoded slot IDs for the weapons, which is not good.
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
12129
07972a8c2433 - Start protocol parser implementation
unc0rr
parents:
diff changeset
     1
use netbuf;
07972a8c2433 - Start protocol parser implementation
unc0rr
parents:
diff changeset
     2
use std::io::Read;
07972a8c2433 - Start protocol parser implementation
unc0rr
parents:
diff changeset
     3
use std::io::Result;
12136
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
     4
use nom::IResult;
12129
07972a8c2433 - Start protocol parser implementation
unc0rr
parents:
diff changeset
     5
12136
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
     6
pub mod messages;
12133
81df2e1f9ae9 Some parsing using nom
unc0rr
parents: 12132
diff changeset
     7
mod parser;
12129
07972a8c2433 - Start protocol parser implementation
unc0rr
parents:
diff changeset
     8
12136
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
     9
pub struct ProtocolDecoder {
12129
07972a8c2433 - Start protocol parser implementation
unc0rr
parents:
diff changeset
    10
    buf: netbuf::Buf,
12136
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
    11
    consumed: usize,
12129
07972a8c2433 - Start protocol parser implementation
unc0rr
parents:
diff changeset
    12
}
07972a8c2433 - Start protocol parser implementation
unc0rr
parents:
diff changeset
    13
12136
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
    14
impl ProtocolDecoder {
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
    15
    pub fn new() -> ProtocolDecoder {
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
    16
        ProtocolDecoder {
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
    17
            buf: netbuf::Buf::new(),
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
    18
            consumed: 0,
12129
07972a8c2433 - Start protocol parser implementation
unc0rr
parents:
diff changeset
    19
        }
07972a8c2433 - Start protocol parser implementation
unc0rr
parents:
diff changeset
    20
    }
07972a8c2433 - Start protocol parser implementation
unc0rr
parents:
diff changeset
    21
07972a8c2433 - Start protocol parser implementation
unc0rr
parents:
diff changeset
    22
    pub fn read_from<R: Read>(&mut self, stream: &mut R) -> Result<usize> {
07972a8c2433 - Start protocol parser implementation
unc0rr
parents:
diff changeset
    23
        self.buf.read_from(stream)
07972a8c2433 - Start protocol parser implementation
unc0rr
parents:
diff changeset
    24
    }
07972a8c2433 - Start protocol parser implementation
unc0rr
parents:
diff changeset
    25
12136
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
    26
    pub fn extract_messages(&mut self) -> Vec<messages::HWProtocolMessage> {
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
    27
        let parse_result = parser::extract_messages(&self.buf[..]);
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
    28
        match parse_result {
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
    29
            IResult::Done(tail, msgs) => {
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
    30
                self.consumed = self.buf.len() - self.consumed - tail.len();
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
    31
                msgs
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
    32
            },
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
    33
            IResult::Incomplete(_) => unreachable!(),
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
    34
            IResult::Error(_) => unreachable!(),
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
    35
        }
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
    36
    }
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
    37
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
    38
    pub fn sweep(&mut self) {
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
    39
        self.buf.consume(self.consumed);
e25a82ce2374 - Render messages to string
unc0rr
parents: 12133
diff changeset
    40
        self.consumed = 0;
12129
07972a8c2433 - Start protocol parser implementation
unc0rr
parents:
diff changeset
    41
    }
07972a8c2433 - Start protocol parser implementation
unc0rr
parents:
diff changeset
    42
}