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Cluster: clusterMsgDataGossip structure, explict padding + minor stuff.

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Also explicitly set version to 0, add a protocol version define, improve
comments in the gossip structure.

Note that the structure layout is the same after the change, we are just
making the padding explicit with an additional not used 16 bits field.
So this commit is still able to talk with the previous versions of
cluster nodes.
This commit is contained in:
antirez
2015-01-13 10:20:49 +01:00
parent 237ab727b9
commit 5b0f4a83ac
3 changed files with 10 additions and 6 deletions
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10
src/cluster.h
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@ -163,10 +163,11 @@ typedef struct {
char nodename[REDIS_CLUSTER_NAMELEN];
uint32_t ping_sent;
uint32_t pong_received;
char ip[REDIS_IP_STR_LEN]; /* IP address last time it was seen */
uint16_t port; /* port last time it was seen */
uint16_t flags;
uint32_t notused; /* for 64 bit alignment */
char ip[REDIS_IP_STR_LEN]; /* IP address last time it was seen */
uint16_t port; /* port last time it was seen */
uint16_t flags; /* node->flags copy */
uint16_t notused1; /* Some room for future improvements. */
uint32_t notused2;
} clusterMsgDataGossip;
typedef struct {
@ -211,6 +212,7 @@ union clusterMsgData {
} update;
};
#define CLUSTER_PROTO_VER 0 /* Cluster bus protocol version. */
typedef struct {
char sig[4]; /* Siganture "RCmb" (Redis Cluster message bus). */