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Comparing Net-SNMP-XS/XS.pm (file contents):
Revision 1.1 by root, Wed Apr 8 10:30:46 2009 UTC vs.
Revision 1.3 by root, Wed Apr 8 13:54:42 2009 UTC

… …
13This module tries to speed up Net::SNMP response packet decoding. 13This module tries to speed up Net::SNMP response packet decoding.
14 14
15It does this by overriding a few selected internal method by (almost) 15It does this by overriding a few selected internal method by (almost)
16equivalent XS methods. 16equivalent XS methods.
17 17
18This currently reduces decode time by some 70%. 18This currently reduces decode time by a factor of four for typical bulk
19responses.
19 20
20There are currently the following limitations when using this module: 21There are currently the following limitations when using this module:
21 22
22=over 4 23=over 4
23 24
24=item leading dots are required for iods 25=item leading dots are required for iods
25 26
26=item error handling is currently broken (but parse errors will be detected) 27=item error handling is currently broken (but parse errors will be detected)
27 28
29=item error messages will be simpler/different
30
28=item oid components are limited to unsigned 32 bit integers 31=item oid components are limited to unsigned 32 bit integers
29 32
30=item translation will be ignored (all values will be delivered "raw") 33=item translation will be ignored (all values will be delivered "raw")
34
35=item a 64 bit perl is required
36
37=item a moderately modern (>= C99) C compiler is required
38
39=item only tested with 5.10
31 40
32=back 41=back
33 42
34=cut 43=cut
35 44
… …
63 set_msg $msg, $msg->{_buffer}; 72 set_msg $msg, $msg->{_buffer};
64 scope_guard \&clr_msg; 73 scope_guard \&clr_msg;
65 &$old_prepare 74 &$old_prepare
66} 75}
67 76
68# almost direct copy from Net::SNMP::Message, as we cannot access $process_methods
69{ 77{
70 package Net::SNMP::Message; 78 package Net::SNMP::Message;
71 79
72 my @process_methods; 80 Net::SNMP::XS::set_type INTEGER , \&_process_integer32;
73 81 Net::SNMP::XS::set_type OCTET_STRING , \&_process_octet_string;
74 $process_methods [INTEGER ] = \&_process_integer32; 82 Net::SNMP::XS::set_type NULL , \&_process_null;
75 $process_methods [OCTET_STRING ] = \&_process_octet_string; 83 Net::SNMP::XS::set_type OBJECT_IDENTIFIER, \&_process_object_identifier;
76 $process_methods [NULL ] = \&_process_null; 84 Net::SNMP::XS::set_type SEQUENCE , \&_process_sequence;
77 $process_methods [OBJECT_IDENTIFIER] = \&_process_object_identifier; 85 Net::SNMP::XS::set_type IPADDRESS , \&_process_ipaddress;
78 $process_methods [SEQUENCE ] = \&_process_sequence; 86 Net::SNMP::XS::set_type COUNTER , \&_process_counter;
79 $process_methods [IPADDRESS ] = \&_process_ipaddress; 87 Net::SNMP::XS::set_type GAUGE , \&_process_gauge;
80 $process_methods [COUNTER ] = \&_process_counter; 88 Net::SNMP::XS::set_type TIMETICKS , \&_process_timeticks;
81 $process_methods [GAUGE ] = \&_process_gauge; 89 Net::SNMP::XS::set_type OPAQUE , \&_process_opaque;
82 $process_methods [TIMETICKS ] = \&_process_timeticks; 90 Net::SNMP::XS::set_type COUNTER64 , \&_process_counter64;
83 $process_methods [OPAQUE ] = \&_process_opaque; 91 Net::SNMP::XS::set_type NOSUCHOBJECT , \&_process_nosuchobject;
84 $process_methods [COUNTER64 ] = \&_process_counter64; 92 Net::SNMP::XS::set_type NOSUCHINSTANCE , \&_process_nosuchinstance;
85 $process_methods [NOSUCHOBJECT ] = \&_process_nosuchobject; 93 Net::SNMP::XS::set_type ENDOFMIBVIEW , \&_process_endofmibview;
86 $process_methods [NOSUCHINSTANCE ] = \&_process_nosuchinstance; 94 Net::SNMP::XS::set_type GET_REQUEST , \&_process_get_request;
87 $process_methods [ENDOFMIBVIEW ] = \&_process_endofmibview; 95 Net::SNMP::XS::set_type GET_NEXT_REQUEST , \&_process_get_next_request;
88 $process_methods [GET_REQUEST ] = \&_process_get_request; 96 Net::SNMP::XS::set_type GET_RESPONSE , \&_process_get_response;
89 $process_methods [GET_NEXT_REQUEST ] = \&_process_get_next_request; 97 Net::SNMP::XS::set_type SET_REQUEST , \&_process_set_request;
90 $process_methods [GET_RESPONSE ] = \&_process_get_response; 98 Net::SNMP::XS::set_type TRAP , \&_process_trap;
91 $process_methods [SET_REQUEST ] = \&_process_set_request; 99 Net::SNMP::XS::set_type GET_BULK_REQUEST , \&_process_get_bulk_request;
92 $process_methods [TRAP ] = \&_process_trap; 100 Net::SNMP::XS::set_type INFORM_REQUEST , \&_process_inform_request;
93 $process_methods [GET_BULK_REQUEST ] = \&_process_get_bulk_request; 101 Net::SNMP::XS::set_type SNMPV2_TRAP , \&_process_v2_trap;
94 $process_methods [INFORM_REQUEST ] = \&_process_inform_request; 102 Net::SNMP::XS::set_type REPORT , \&_process_report;
95 $process_methods [SNMPV2_TRAP ] = \&_process_v2_trap;
96 $process_methods [REPORT ] = \&_process_report;
97
98 # should be done in XS
99 sub process
100 {
101# my ($this, $expected, $found) = @_;
102
103 return $_[0]->_error if defined($_[0]->{_error});
104 return $_[0]->_error unless defined(my $type = _buffer_get($_[0], 1));
105
106 $type = unpack 'C', $type;
107
108 if ($process_methods[$type]) {
109 if (@_ >= 2 && (defined $_[1]) && $type != $_[1]) {
110 return $_[0]->_error(
111 'Expected %s, but found %s', asn1_itoa($_[1]), asn1_itoa($type)
112 );
113 }
114 $_[2] = $type if (@_ == 3);
115 $process_methods[$type]->($_[0], $type);
116 } else {
117 $_[0]->_error('Unknown ASN.1 type [0x%02x]', $type);
118 }
119 }
120} 103}
121 104
1221; 1051;
123 106
124=head1 AUTHOR 107=head1 AUTHOR

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