1 USING: accessors assocs bson.reader bson.writer byte-arrays
2 byte-vectors combinators formatting fry io io.binary io.encodings.private
3 io.encodings.binary io.encodings.string io.encodings.utf8 io.encodings.utf8.private io.files
4 kernel locals math mongodb.msg namespaces sequences uuid bson.writer.private ;
8 M: byte-vector byte-length length ;
10 IN: mongodb.operations
14 PREDICATE: mdb-reply-op < integer OP_Reply = ;
15 PREDICATE: mdb-query-op < integer OP_Query = ;
16 PREDICATE: mdb-insert-op < integer OP_Insert = ;
17 PREDICATE: mdb-update-op < integer OP_Update = ;
18 PREDICATE: mdb-delete-op < integer OP_Delete = ;
19 PREDICATE: mdb-getmore-op < integer OP_GetMore = ;
20 PREDICATE: mdb-killcursors-op < integer OP_KillCursors = ;
24 GENERIC: write-message ( message -- )
28 CONSTANT: MSG-HEADER-SIZE 16
30 SYMBOL: msg-bytes-read
32 : bytes-read> ( -- integer )
33 msg-bytes-read get ; inline
35 : >bytes-read ( integer -- )
36 msg-bytes-read set ; inline
38 : change-bytes-read ( integer -- )
39 bytes-read> [ 0 ] unless* + >bytes-read ; inline
41 : read-int32 ( -- int32 ) 4 [ read le> ] [ change-bytes-read ] bi ; inline
42 : read-longlong ( -- longlong ) 8 [ read le> ] [ change-bytes-read ] bi ; inline
43 : read-byte-raw ( -- byte-raw ) 1 [ read le> ] [ change-bytes-read ] bi ; inline
44 : read-byte ( -- byte ) read-byte-raw first ; inline
46 : (read-cstring) ( acc -- )
47 [ read-byte ] dip ! b acc
49 [ 0 = ] dip ! bool acc
50 '[ _ (read-cstring) ] unless ; inline recursive
52 : read-cstring ( -- string )
54 [ (read-cstring) ] keep
56 >byte-array utf8 decode ; inline
58 GENERIC: (read-message) ( message opcode -- message )
60 : copy-header ( message msg-stub -- message )
61 [ length>> ] keep [ >>length ] dip
62 [ req-id>> ] keep [ >>req-id ] dip
63 [ resp-id>> ] keep [ >>resp-id ] dip
64 [ opcode>> ] keep [ >>opcode ] dip
67 M: mdb-reply-op (read-message) ( msg-stub opcode -- message )
69 [ <mdb-reply-msg> ] dip copy-header
70 read-longlong >>cursor
72 read-int32 [ >>returned# ] keep
73 [ H{ } stream>assoc ] accumulator [ times ] dip >>objects ;
75 : read-header ( message -- message )
80 read-int32 >>flags ; inline
82 : write-header ( message -- )
83 [ req-id>> write-int32 ] keep
84 [ resp-id>> write-int32 ] keep
85 opcode>> write-int32 ; inline
89 : read-message ( -- message )
93 [ ] [ opcode>> ] bi (read-message) ;
99 : dump-to-file ( array -- )
100 [ uuid1 "/tmp/mfb/%s.dump" sprintf binary ] dip
101 '[ _ write ] with-file-writer ;
103 : (write-message) ( message quot -- )
104 '[ [ [ _ write-header ] dip _ call ] with-length-prefix ] with-buffer
105 ! [ dump-to-file ] keep
108 :: build-query-object ( query -- selector )
109 H{ } clone :> selector
110 query { [ orderby>> [ "$orderby" selector set-at ] when* ]
111 [ explain>> [ "$explain" selector set-at ] when* ]
112 [ hint>> [ "$hint" selector set-at ] when* ]
113 [ query>> "query" selector set-at ]
119 M: mdb-query-msg write-message ( message -- )
122 [ flags>> write-int32 ] keep
123 [ collection>> write-cstring ] keep
124 [ skip#>> write-int32 ] keep
125 [ return#>> write-int32 ] keep
126 [ build-query-object assoc>stream ] keep
127 returnfields>> [ assoc>stream ] when*
130 M: mdb-insert-msg write-message ( message -- )
133 [ flags>> write-int32 ] keep
134 [ collection>> write-cstring ] keep
135 objects>> [ assoc>stream ] each
138 M: mdb-update-msg write-message ( message -- )
141 [ flags>> write-int32 ] keep
142 [ collection>> write-cstring ] keep
143 [ upsert?>> write-int32 ] keep
144 [ selector>> assoc>stream ] keep
145 object>> assoc>stream
148 M: mdb-delete-msg write-message ( message -- )
151 [ flags>> write-int32 ] keep
152 [ collection>> write-cstring ] keep
154 selector>> assoc>stream
157 M: mdb-getmore-msg write-message ( message -- )
160 [ flags>> write-int32 ] keep
161 [ collection>> write-cstring ] keep
162 [ return#>> write-int32 ] keep
163 cursor>> write-longlong
166 M: mdb-killcursors-msg write-message ( message -- )
169 [ flags>> write-int32 ] keep
170 [ cursors#>> write-int32 ] keep
171 cursors>> [ write-longlong ] each