shared storage adapt dual cluster about deploy and main standby only read

src/include/access/xlog.h

@@ -134,7 +134,7 @@ typedef enum WalLevel {
 /* Do we need to WAL-log information required only for Hot Standby and logical replication? */
 #define XLogStandbyInfoActive()                                         \
     (g_instance.attr.attr_storage.wal_level >= WAL_LEVEL_HOT_STANDBY && \
-        !g_instance.attr.attr_storage.dms_attr.enable_dms)
+        (!g_instance.attr.attr_storage.dms_attr.enable_dms || SS_PRIMARY_STANDBY_CLUSTER_NORMAL))
 /* Do we need to WAL-log information required only for logical replication? */
 #define XLogLogicalInfoActive() (g_instance.attr.attr_storage.wal_level >= WAL_LEVEL_LOGICAL)
 extern const char* DemoteModeDescs[];
@@ -612,6 +612,9 @@ typedef struct XLogCtlData {
     bool is_need_log_remain_segs;
     XLogRecPtr remainCommitLsn;
 
+    /* streaming replication during pre-reading for dss */
+    XLogRecPtr xlogFlushPtrForPerRead;
+
     slock_t info_lck; /* locks shared variables shown above */
 } XLogCtlData;
 

src/include/access/xlog_basic.h

@@ -314,6 +314,9 @@ struct XLogReaderState {
     XLogRecPtr preReadStartPtr;
     char* preReadBuf;
     char* preReadBufOrigin;
+    
+    /* streaming replication during pre-reading for dss */
+    XLogRecPtr xlogFlushPtrForPerRead;
 
     /* last read segment, segment offset, TLI for data currently in readBuf */
     XLogSegNo readSegNo;

src/include/ddes/dms/ss_common_attr.h

@@ -89,6 +89,27 @@
     (ENABLE_DMS && (g_instance.dms_cxt.SSClusterState == NODESTATE_STANDBY_WAITING || \
     g_instance.dms_cxt.SSClusterState == NODESTATE_STANDBY_REDIRECT))
 
+/* Mode in dorado hyperreplication and dms enabled as follow */
+
+/* main standby which is runing normally, not in intermediate state */
+#define SS_PRIMARY_CLUSTER_NORMAL_PRIMARY                                    \
+    (ENABLE_DMS && (t_thrd.xlog_cxt.server_mode == PRIMARY_MODE) && \
+    (g_instance.attr.attr_common.cluster_run_mode == RUN_MODE_PRIMARY) && \
+    (g_instance.attr.attr_storage.xlog_file_path != 0))
+
+/* main standby which is runing normally, not in intermediate state */
+#define SS_STANDBY_CLUSTER_NORMAL_MAIN_STANDBY                                    \
+    (ENABLE_DMS && (t_thrd.xlog_cxt.server_mode == STANDBY_MODE || \
+    t_thrd.postmaster_cxt.HaShmData->current_mode ==  STANDBY_MODE) && \
+    (g_instance.attr.attr_common.cluster_run_mode == RUN_MODE_STANDBY) && \
+    (g_instance.attr.attr_storage.xlog_file_path != 0))
+
+/* main standby which is runing normally, not in intermediate state */
+#define SS_PRIMARY_STANDBY_CLUSTER_NORMAL                                   \
+    (ENABLE_DMS && ((g_instance.attr.attr_common.cluster_run_mode == RUN_MODE_PRIMARY) || \
+    (g_instance.attr.attr_common.cluster_run_mode == RUN_MODE_STANDBY)) && \
+    (g_instance.attr.attr_storage.xlog_file_path != 0))
+
 /* DMS_BUF_NEED_LOAD */
 #define BUF_NEED_LOAD           0x1
 /* DMS_BUF_IS_LOADED */

src/include/ddes/dms/ss_reform_common.h

@@ -37,7 +37,7 @@ typedef struct SSBroadcastCancelTrx {
 
 int SSXLogPageRead(XLogReaderState *xlogreader, XLogRecPtr targetPagePtr, int reqLen,
     XLogRecPtr targetRecPtr, char *readBuf, TimeLineID *readTLI, char* xlog_path);
-bool SSReadXlogInternal(XLogReaderState *xlogreader, XLogRecPtr targetPagePtr, char *buf);
+bool SSReadXlogInternal(XLogReaderState *xlogreader, XLogRecPtr targetPagePtr, XLogRecPtr targetRecPtr, char *buf);
 XLogReaderState *SSXLogReaderAllocate(XLogPageReadCB pagereadfunc, void *private_data, Size alignedSize);
 void SSGetXlogPath();
 void SSSaveReformerCtrl();

src/include/postmaster/postmaster.h

@@ -220,7 +220,7 @@ extern bool get_addr_from_socket(int sock, struct sockaddr *saddr);
 extern int get_ip_port_from_addr(char* sock_ip, int* port, struct sockaddr saddr);
 #endif
 
-const char *GetSSServerMode();
+const char *GetSSServerMode(ServerMode mode);
 bool SSIsServerModeReadOnly();
 bool IsFromLocalAddr(Port* port);
 extern bool IsMatchSocketAddr(const struct sockaddr* sock_addr, int compare_port);

src/include/tool_common.h

@@ -105,8 +105,25 @@ typedef struct st_datadir_t {
     dw_subdatadir_t dwDir;
 } datadir_t;
 
-void initDataPathStruct(bool enable_dss);
+typedef struct DssOptions
+{
+    bool enable_dss;
+    int instance_id;
+    const char *vgname;
+    char *vglog;
+    char *vgdata;
+    char *socketpath;
+    int  primaryInstId;
+} DssOptions;
+
+typedef struct SSInstanceConfig
+{
+    /* DSS conntct parameters */
+    DssOptions dss;
+} SSInstanceConfig;
 
 extern datadir_t g_datadir;
 
+void initDataPathStruct(bool enable_dss);
+
 #endif