add sf_connection_manager.[hc]

src/Makefile.in

@@ -7,7 +7,7 @@ TARGET_LIB = $(TARGET_PREFIX)/$(LIB_VERSION)
 
 TOP_HEADERS = sf_types.h sf_global.h sf_define.h sf_nio.h sf_service.h \
               sf_func.h sf_util.h sf_configs.h sf_proto.h sf_binlog_writer.h \
-              sf_sharding_htable.h
+              sf_sharding_htable.h sf_connection_manager.h
 
 IDEMP_SERVER_HEADER = idempotency/server/server_types.h \
                       idempotency/server/server_channel.h  \
@@ -25,6 +25,7 @@ ALL_HEADERS  = $(TOP_HEADERS) $(IDEMP_SERVER_HEADER) $(IDEMP_CLIENT_HEADER)
 SHARED_OBJS = sf_nio.lo sf_service.lo sf_global.lo \
         sf_func.lo sf_util.lo sf_configs.lo sf_proto.lo \
         sf_binlog_writer.lo sf_sharding_htable.lo  \
+        sf_connection_manager.lo \
         idempotency/server/server_channel.lo  \
         idempotency/server/request_htable.lo  \
         idempotency/server/channel_htable.lo  \

src/sf_connection_manager.c

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2020 YuQing <384681@qq.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <time.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include "fastcommon/shared_func.h"
+#include "fastcommon/logger.h"
+#include "sf_connection_manager.h"
+
+int sf_connection_manager_init(SFConnectionManager *cm, const int group_count,
+        const int server_group_index)
+{
+    return 0;
+}

src/sf_connection_manager.h

@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2020 YuQing <384681@qq.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+//sf_connection_manager.h
+
+#ifndef _SF_CONNECTION_MANAGER_H
+#define _SF_CONNECTION_MANAGER_H
+
+#include "fastcommon/server_id_func.h"
+#include "sf_types.h"
+#include "sf_configs.h"
+
+typedef struct sf_cm_server_entry {
+    int server_id;
+    ConnectionInfo *conn;
+    FCAddressPtrArray *addr_array;
+} SFCMServerEntry;
+
+typedef struct sf_cm_server_array {
+    SFCMServerEntry *servers;
+    int count;
+} SFCMServerArray;
+
+typedef struct sf_cm_server_ptr_array {
+    SFCMServerEntry **servers;
+    int count;
+} SFCMServerPtrArray;
+
+typedef struct sf_cm_conn_group_entry {
+    SFCMServerEntry *master;
+    SFCMServerPtrArray alives;
+    pthread_mutex_t lock;
+} SFCMConnGroupEntry;
+
+typedef struct sf_cm_conn_group_array {
+    SFCMConnGroupEntry *entries;
+    int count;
+    int base_id;
+} SFCMConnGroupArray;
+
+typedef struct sf_connection_manager {
+    int server_group_index;
+    SFDataReadRule read_rule;  //the rule for read
+    SFCMConnGroupArray groups;
+} SFConnectionManager;
+
+int sf_connection_manager_init(SFConnectionManager *cm, const int group_count,
+        const int server_group_index);
+
+int sf_connection_manager_add(SFConnectionManager *cm, const int group_id,
+        FCServerInfo **servers, const int count);
+
+ConnectionInfo *sf_connection_manager_get_master(SFConnectionManager *cm,
+        const int group_index, int *err_no);
+
+ConnectionInfo *sf_connection_manager_get_readable(SFConnectionManager *cm,
+        const int group_index, int *err_no);
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif