For event/hook handlers that had a previous declaration, any &default
arguments are ineffective. Only &default uses in the initial
prototype's arguments have an effect (that includes if the handler
is actually the site at which the declaration occurs).
When the only existing handler doesn't use the full argument list, still
have to ensure the full frame is allocated because all arguments get set
regardless.
This fixes it to again allow the old behavior of matching a handler
against the canonical prototype as long as all argument types, but not
necessarily names, match.
Pattern values used as table/set indices are stored in serialized form
using just the pattern text, but re-creating the value from that didn't
fully initialize/compile the regex matcher after (re-)creating it from
that pattern text.
The alternates must be some subset of the canonical prototype (the one
that's first declared) and allows users to define handlers for any
such prototype. Example:
# Prototype declarations
global my_event: event(s: string, c: count);
global my_event: event(c: count);
global my_event: event();
# Handler definitions
event my_event(s: string, c: count) { print s, c; }
event my_event(c: count) { print c; }
event my_event() { }
This allows handlers to consume a subset of the arguments or even
re-order them. This makes it easier to either extend an existing
event/hook's arguments and/or deprecate usages of certain prototypes.
* origin/topic/jsiwek/misc-lambda-fixes:
GH-725: fix logic for finding a lambda's usage of outer IDs
Change record field anonymous functions to use lambda expressions
There was an alternate syntax to assign anonymous functions to record
fields that was never migrated to use the new lambda expression
machinery (and so didn't allow referencing variables in outer scope):
type myrec: record {
foo: function(a: string);
};
local o = "o";
local mr = myrec($foo(a: string) = { print a + o; });
These were previously reporting leaks due to various allocations not
getting cleaned up during the stack unwind, but at the current state of
the transition toward IntrusivePtr usage, theses tests no longer leak.
* origin/topic/jsiwek/gh-857-rebuild-tables-on-record-redef:
Initialize RecordVal default fields when redef'd
GH-857: fix redefining record types used to index tables
Change RecordVals to get resized at time of RecordType redef
* 'intrusive_ptr' of https://github.com/MaxKellermann/zeek: (32 commits)
Scope: store IntrusivePtr in `local`
Scope: pass IntrusivePtr to AddInit()
DNS_Mgr: use class IntrusivePtr
Scope: use class IntrusivePtr
Attr: use class IntrusivePtr
Expr: check_and_promote_expr() returns IntrusivePtr
Frame: use class IntrusivePtr
Val: RecordVal::LookupWithDefault() returns IntrusivePtr
Type: RecordType::FieldDefault() returns IntrusivePtr
Val: TableVal::Delete() returns IntrusivePtr
Type: base_type() returns IntrusivePtr
Type: init_type() returns IntrusivePtr
Type: merge_types() returns IntrusivePtr
Type: use class IntrusivePtr in VectorType
Type: use class IntrusivePtr in EnumType
Type: use class IntrusivePtr in FileType
Type: use class IntrusivePtr in TypeDecl
Type: make TypeDecl `final` and the dtor non-`virtual`
Type: use class IntrusivePtr in TypeType
Type: use class IntrusivePtr in FuncType
...
This change tracks all TableVals created at parse-time whose index
depends on a given RecordType. Should that RecordType be redef'd, those
TableVals are immediately rebuilt such that they are valid to
subsequently use in either parse-time initializations or eventually in
any arbitrary run-time expression.
The order in which &expire_func's get called isn't well-defined, so
separate the output from either to ensure diffs against the Baseline are
always consistent.
Logs that got sent sparsely or burstily would get buffered for long
periods of time since the logic to flush them only does so on the next
log write. In the worst case, a subsequent log write could never happen
and cause a log entry to be indefinitely buffered.
This fix introduces a recurring event/timer to simply flush all pending
logs at frequency of Broker::log_batch_interval.
During merge I split the test for bro_init/bro_done/bro_script_loaded
event errors into individual tests since the other testing of the zeek
versions of those events seemed fine to otherwise keep.
* origin/topic/robin/631-deprecation-v2:
Update NEWS for naming changes.
Small cleanup and updating submodules.
Remove test for legacy plugin.
Remove legancy symlinks in aux/.
Add warnings when loading scripts ending in ".bro", or using legacy environment variables.
Fix missing rename.
No longer symlink local.zeek to local.bro.
Update notice user agent.
Remove old_comm_usage_is_ok.
Remove bro-config.h.in and bro-path-dev.in.
Change Bro wrapper script to now abort when old executable names are still used.
Remove APIs that were explicitly deprecated to be removed in 3.1.
Fixes in merge:
- Memory leak in HashKey ctor
- Minor whitespace/style changes
* origin/topic/dev/patterns-in-sets:
Enable Patterns as Table index in non singleton cases
Added support to create a Hashkey for PatternVals using their Pattern Texts
E.g. ones that throw interpreter exceptions, as those are currently
known to potentially cause leaks. Fixing the underlying leaks involves
the larger task of more IntrusivePtr usage.
Reference cycles may also cause leaks.
To avoid a memory leak in DNS lookups that's hard to work around and
does not otherwise effect typical operation when Zeek is allowed to
continue to run after zeek_init().
Which was used by the new ShallowClone method and causes multiple enum
declarations/definitions to now crash. Such code is not typically
seen in scripts, but being able to define an enum in both .bif and
.bro files has historically been supported.
anonymous-functions, their closures, can now be sent over broker.
In order to send an anonymous function the receiver must have parsed
a definition of the functon, but it need not to have been evaluated.
See testing/btest/language/closure-sending.zeek for an example of how
this can be done.
This also sends their closures as well as the closures of regular
functions.
