RDMF: More consistent define names.

RDMF: redisAssert -> serverAssert.

RDMF: use client instead of redisClient, like Disque.

RDMF (Redis/Disque merge friendlyness) refactoring WIP 1.

pubsub: Return integers for NUMSUB, not strings

Also adds test for numsub — due to tcl being tcl,
it doesn't capture the "numberness" of the fix,
but now we at least have one test case for numsub.

pubsub: Return integers for NUMSUB, not strings

Also adds test for numsub — due to tcl being tcl,
it doesn't capture the "numberness" of the fix,
but now we at least have one test case for numsub.

Closes #1561

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PubSub clients refactoring and new PUBSUB flag.

The code tested many times if a client had active Pub/Sub subscriptions
by checking the length of a list and dictionary where the patterns and
channel

PubSub clients refactoring and new PUBSUB flag.

The code tested many times if a client had active Pub/Sub subscriptions
by checking the length of a list and dictionary where the patterns and
channels are stored. This was substituted with a client flag called
REDIS_PUBSUB that is simpler to test for. Moreover in order to manage
this flag some code was refactored.

This commit is believed to have no effects in the behavior of the
server.

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struct dictEntry -> dictEntry.

Cluster: don't propagate PUBLISH two times.

PUBLISH both published messages via Cluster bus and replication when
cluster was enabled, resulting in duplicated message in the slave.

New API to force propagation.

The old REDIS_CMD_FORCE_REPLICATION flag was removed from the
implementation of Redis, now there is a new API to force specific
executions of a command to be propagated

New API to force propagation.

The old REDIS_CMD_FORCE_REPLICATION flag was removed from the
implementation of Redis, now there is a new API to force specific
executions of a command to be propagated to AOF / Replication link:

void forceCommandPropagation(int flags);

The new API is also compatible with Lua scripting, so a script that will
execute commands that are forced to be propagated, will also be
propagated itself accordingly even if no change to data is operated.

As a side effect, this new design fixes the issue with scripts not able
to propagate PUBLISH to slaves (issue #873).

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Allow PUBSUB NUMSUB without channels.

The result is an empty list but it is handy to call it programmatically.

PUBSUB command implemented.

Currently it implements three subcommands:

PUBSUB CHANNELS [<pattern>] List channels with non-zero subscribers.
PUBSUB NUMSUB [channel_1 ...] List number of subscrib

PUBSUB command implemented.

Currently it implements three subcommands:

PUBSUB CHANNELS [<pattern>] List channels with non-zero subscribers.
PUBSUB NUMSUB [channel_1 ...] List number of subscribers for channels.
PUBSUB NUMPAT Return number of subscribed patterns.

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Removed useless "return" statements in pubsub.c

(original commit message edited)

UNSUBSCRIBE and PUNSUBSCRIBE: always provide a reply.

UNSUBSCRIBE and PUNSUBSCRIBE commands are designed to mass-unsubscribe
the client respectively all the channels and patters if called without
ar

UNSUBSCRIBE and PUNSUBSCRIBE: always provide a reply.

UNSUBSCRIBE and PUNSUBSCRIBE commands are designed to mass-unsubscribe
the client respectively all the channels and patters if called without
arguments.

However when these functions are called without arguments, but there are
no channels or patters we are subscribed to, the old behavior was to
don't reply at all.

This behavior is broken, as every command should always reply.
Also it is possible that we are no longer subscribed to a channels but we
are subscribed to patters or the other way around, and the client should
be notified with the correct number of subscriptions.

Also it is not pretty that sometimes we did not receive a reply at all
in a redis-cli session from these commands, blocking redis-cli trying
to read the reply.

This fixes issue #714.

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Fixed many typos.

BSD license added to every C source and header file.

Use less memory when emitting the protocol, by using more shared objects for commonly emitted parts of the protocol.

dict.c API names modified to be more coincise and consistent.

propagate PUBLISH messages using the redis cluster nodes bus. Still need to process the incoming packets of that type. Work in progress.

replaced redisAssert() with redisAssertWithInfo() in a shitload of places.

Fix for Pub/Sub system, introduced in Redis 2.2.6 with the new copy-on-write safe iterator semantics. In the hope this is the last bug I introduced this way.

Skip object encoding where it doesn't make sense

Convert objects in the command procs instead of the protocol code

minor aesthetic change

redis.c split into many different C files.

networking related stuff moved into networking.c

moved more code

more work on layout of source code

SDS instantaneuos memory saving. By Pieter and Salva

redis.c split into many different C files.

networking related stuff moved into networking.c

moved more code

more work on layout of source code

SDS instantaneuos memory saving. By Pieter and Salvatore at VMware ;)

cleanly compiling again after the first split, now splitting it in more C files

moving more things around... work in progress

split replication code

splitting more

Sets split

Hash split

replication split

even more splitting

more splitting

minor change

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