From de943f684ad5a43b78e19f51973316a4b84f80ae Mon Sep 17 00:00:00 2001
From: YuQing <384681@qq.com>
Date: Wed, 30 Mar 2022 21:22:34 +0800
Subject: [PATCH] add function sf_load_quorum_config

---
 src/sf_configs.c | 34 ++++++++++++++++++++++++++++++----
 src/sf_configs.h | 21 ++++++++++++++++++++-
 src/sf_types.h   |  5 +++++
 3 files changed, 55 insertions(+), 5 deletions(-)

diff --git a/src/sf_configs.c b/src/sf_configs.c
index 20f4cce..dce8439 100644
--- a/src/sf_configs.c
+++ b/src/sf_configs.c
@@ -94,13 +94,14 @@ void sf_net_retry_config_to_string(SFNetRetryConfig *net_retry_cfg,
             net_retry_cfg->network.interval_ms);
 }
 
-void sf_load_read_rule_config_ex(SFDataReadRule *rule,
+int sf_load_read_rule_config_ex(SFDataReadRule *rule,
         IniFullContext *ini_ctx, const SFDataReadRule def_rule)
 {
     char *read_rule;
+
     read_rule = iniGetStrValueEx(ini_ctx->section_name,
             "read_rule", ini_ctx->context, true);
-    if (read_rule == NULL || *read_rule == '\0') {
+    if (read_rule == NULL) {
         *rule = def_rule;
     } else if (strncasecmp(read_rule, "any", 3) == 0) {
         *rule = sf_data_read_rule_any_available;
@@ -110,8 +111,33 @@ void sf_load_read_rule_config_ex(SFDataReadRule *rule,
         *rule = sf_data_read_rule_master_only;
     } else {
         logError("file: "__FILE__", line: %d, "
-                "config file: %s, unkown read_rule: %s, set to any",
+                "config file: %s, unkown read_rule: %s",
                 __LINE__, ini_ctx->filename, read_rule);
-        *rule = sf_data_read_rule_any_available;
+        return EINVAL;
     }
+
+    return 0;
+}
+
+int sf_load_quorum_config_ex(SFElectionQuorum *quorum,
+        IniFullContext *ini_ctx, const SFElectionQuorum def_quorum)
+{
+    char *str;
+
+    str = iniGetStrValue(ini_ctx->section_name,
+            "quorum", ini_ctx->context);
+    if (str == NULL) {
+        *quorum = def_quorum;
+    } else if (strncasecmp(str, "any", 3) == 0) {
+        *quorum = sf_election_quorum_any;
+    } else if (strncasecmp(str, "majority", 8) == 0) {
+        *quorum = sf_election_quorum_majority;
+    } else {
+        logError("file: "__FILE__", line: %d, "
+                "config file: %s, unkown quorum: %s",
+                __LINE__, ini_ctx->filename, str);
+        return EINVAL;
+    }
+
+    return 0;
 }
diff --git a/src/sf_configs.h b/src/sf_configs.h
index 76ac295..b8887ac 100644
--- a/src/sf_configs.h
+++ b/src/sf_configs.h
@@ -67,7 +67,7 @@ static inline int sf_calc_next_retry_interval(SFNetRetryIntervalContext *ctx)
     return ctx->interval_ms;
 }
 
-void sf_load_read_rule_config_ex(SFDataReadRule *rule,
+int sf_load_read_rule_config_ex(SFDataReadRule *rule,
         IniFullContext *ini_ctx, const SFDataReadRule def_rule);
 
 static inline const char *sf_get_read_rule_caption(
@@ -85,9 +85,28 @@ static inline const char *sf_get_read_rule_caption(
     }
 }
 
+int sf_load_quorum_config_ex(SFElectionQuorum *quorum,
+        IniFullContext *ini_ctx, const SFElectionQuorum def_quorum);
+
+static inline const char *sf_get_quorum_caption(
+        const SFElectionQuorum quorum)
+{
+    switch (quorum) {
+        case sf_election_quorum_any:
+            return "any";
+        case sf_election_quorum_majority:
+            return "majority";
+        default:
+            return "unknown";
+    }
+}
+
 #define sf_load_read_rule_config(rule, ini_ctx) \
     sf_load_read_rule_config_ex(rule, ini_ctx, sf_data_read_rule_master_only)
 
+#define sf_load_quorum_config(quorum, ini_ctx) \
+    sf_load_quorum_config_ex(quorum, ini_ctx, sf_election_quorum_majority)
+
 #define SF_NET_RETRY_FINISHED(retry_times, counter, result)  \
         !((SF_IS_RETRIABLE_ERROR(result) && ((retry_times > 0 &&  \
                     counter <= retry_times) || (retry_times < 0))))
diff --git a/src/sf_types.h b/src/sf_types.h
index 9b935c5..ec3f3ba 100644
--- a/src/sf_types.h
+++ b/src/sf_types.h
@@ -244,4 +244,9 @@ typedef struct sf_synchronize_context {
     };
 } SFSynchronizeContext;
 
+typedef enum sf_election_quorum {
+    sf_election_quorum_any = 1,
+    sf_election_quorum_majority
+} SFElectionQuorum;
+
 #endif