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Modules Cluster API: message bus implementation.

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This commit is contained in:
antirez
2018-03-29 15:13:31 +02:00
parent 8ac7af1c5d
commit 0701cad3de
4 changed files with 111 additions and 5 deletions
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20
src/cluster.h
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@ -97,7 +97,8 @@ typedef struct clusterLink {
#define CLUSTERMSG_TYPE_FAILOVER_AUTH_ACK 6 /* Yes, you have my vote */
#define CLUSTERMSG_TYPE_UPDATE 7 /* Another node slots configuration */
#define CLUSTERMSG_TYPE_MFSTART 8 /* Pause clients for manual failover */
#define CLUSTERMSG_TYPE_COUNT 9 /* Total number of message types. */
#define CLUSTERMSG_TYPE_MODULE 9 /* Module cluster API message. */
#define CLUSTERMSG_TYPE_COUNT 10 /* Total number of message types. */
/* This structure represent elements of node->fail_reports. */
typedef struct clusterNodeFailReport {
@ -195,10 +196,7 @@ typedef struct {
typedef struct {
uint32_t channel_len;
uint32_t message_len;
/* We can't reclare bulk_data as bulk_data[] since this structure is
* nested. The 8 bytes are removed from the count during the message
* length computation. */
unsigned char bulk_data[8];
unsigned char bulk_data[8]; /* 8 bytes just as placeholder. */
} clusterMsgDataPublish;
typedef struct {
@ -207,6 +205,13 @@ typedef struct {
unsigned char slots[CLUSTER_SLOTS/8]; /* Slots bitmap. */
} clusterMsgDataUpdate;
typedef struct {
uint64_t module_id; /* ID of the sender module. */
uint32_t len; /* ID of the sender module. */
uint8_t type; /* Type from 0 to 255. */
unsigned char bulk_data[3]; /* 3 bytes just as placeholder. */
} clusterMsgModule;
union clusterMsgData {
/* PING, MEET and PONG */
struct {
@ -228,6 +233,11 @@ union clusterMsgData {
struct {
clusterMsgDataUpdate nodecfg;
} update;
/* MODULE */
struct {
clusterMsgModule msg;
} module;
};
#define CLUSTER_PROTO_VER 1 /* Cluster bus protocol version. */