With the previous API, a NULL return value was ambiguous and could
represent either an old value of NULL or an error condition. The new API
returns a status code and allows the old value to be returned
by-reference.
This commit also includes test coverage based on
tests/modules/datatype.c which did not exist at the time of the original
commit.
since the refactory of config.c, it was initialized from config_hz in initServer
but apparently that's too late since the config file loading creates objects
which call LRU_CLOCK
This is useful to tell redis and modules to try to avoid doing things that may
increment the replication offset, and should be used when draining a master
and waiting for replicas to be in perfect sync before a failover.
This message is there for ten years, but is hardly useful.
Moreover it is likely that it will fill an entire disk if log ratation
is not configured, for no good reasons.
the code in:
c->flags &= ~(CLIENT_TRACKING|CLIENT_TRACKING_BROKEN_REDIR);
will do sign extension and turn on all the high 31 bits
no damage so far since we don't have any yet
+ memcpy(&id,ri.key,sizeof(id));
The memcpy from the key to the id reliease on the fact that this key
*should* be 8 bytes long as it was entered as such a few lines up the
code.
BUT if someone will change the code to the point this is no longer true,
current code can trash the stack which makes debugging very hard
while this fix will result in some garbage id, or even page fault.
Both are preferable to stack mangaling.
Changes in behavior:
- Change server.stream_node_max_entries from int64_t to long long, so that it can be used by the generic infra
- standard error reply instead of "repl-backlog-size must be 1 or greater" and such
- tls-port and a few TLS booleans were readable (config get) even when USE_OPENSSL was off (now they aren't)
- syslog-enabled, syslog-ident, cluster-enabled, appendfilename, and supervised didn't have a get (now they do)
- pidfile was initialized to NULL in InitServerConfig but had CONFIG_DEFAULT_PID_FILE in rewriteConfig (so the real default was "", but rewrite would cause it to be set), fixed the rewrite.
- TLS config in server.h was uninitialized (if no tls config args were provided)
Adding test for sanity and coverage
