New signal handling infrastructure. Prevent unloading running module.

[stg.git] / projects / stargazer / plugins / store / postgresql / postgresql_store.cpp

diff --git a/projects/stargazer/plugins/store/postgresql/postgresql_store.cpp b/projects/stargazer/plugins/store/postgresql/postgresql_store.cpp
index d9586b89f774052cedee341671d1dcb3aef414e1..073fccab5d92ce84e8a46c5dd6d25e7973e6914b 100644 (file)
--- a/projects/stargazer/plugins/store/postgresql/postgresql_store.cpp
+++ b/projects/stargazer/plugins/store/postgresql/postgresql_store.cpp
@@ -44,40 +44,32 @@
 
 #include <libpq-fe.h>
 
-#include "postgresql_store.h"
+#include "stg/module_settings.h"
+#include "stg/plugin_creator.h"
 #include "postgresql_store_utils.h"
-#include "base_settings.h"
+#include "postgresql_store.h"
 
-class POSTGRESQL_STORE_CREATOR
-{
-public:
-    POSTGRESQL_STORE_CREATOR()
-        : pqStore(new POSTGRESQL_STORE())
-        {
-        };
-    ~POSTGRESQL_STORE_CREATOR()
-        {
-        delete pqStore;
-        };
-    POSTGRESQL_STORE * GetStore() { return pqStore; };
-private:
-    POSTGRESQL_STORE * pqStore;
-} pqStoreeCreator;
+PLUGIN_CREATOR<POSTGRESQL_STORE> pqStoreeCreator;
 
 //-----------------------------------------------------------------------------
-BASE_STORE * GetStore()
+STORE * GetStore()
 {
-return pqStoreeCreator.GetStore();
+return pqStoreeCreator.GetPlugin();
 }
 
 //-----------------------------------------------------------------------------
 POSTGRESQL_STORE::POSTGRESQL_STORE()
     : versionString("postgresql_store v.1.3"),
+      strError(),
       server("localhost"),
       database("stargazer"),
       user("stg"),
       password("123456"),
+      clientEncoding("KOI8"),
+      settings(),
+      mutex(),
       version(0),
+      retries(3),
       connection(NULL)
 {
 pthread_mutex_init(&mutex, NULL);
@@ -117,6 +109,15 @@ for(i = settings.moduleParams.begin(); i != settings.moduleParams.end(); ++i)
         {
         password = *(i->value.begin());
         }
+    if (s == "retries")
+        {
+        if (str2x(*(i->value.begin()), retries))
+            {
+            strError = "Invalid 'retries' value";
+            printfd(__FILE__, "POSTGRESQL_STORE::ParseSettings(): '%s'\n", strError.c_str());
+            return -1;
+            }
+        }
     }
 
 clientEncoding = "KOI8";
@@ -138,7 +139,8 @@ if (PQstatus(connection) != CONNECTION_OK)
     {
     strError = PQerrorMessage(connection);
     printfd(__FILE__, "POSTGRESQL_STORE::Connect(): '%s'\n", strError.c_str());
-    return 1;
+    // Will try to connect later
+    return 0;
     }
 
 if (PQsetClientEncoding(connection, clientEncoding.c_str()))
@@ -153,7 +155,12 @@ return CheckVersion();
 //-----------------------------------------------------------------------------
 int POSTGRESQL_STORE::Reset() const
 {
-PQreset(connection);
+for (int i = 0; i < retries && PQstatus(connection) != CONNECTION_OK; ++i)
+    {
+    struct timespec ts = {1, 0};
+    nanosleep(&ts, NULL);
+    PQreset(connection);
+    }
 
 if (PQstatus(connection) != CONNECTION_OK)
     {
@@ -166,7 +173,7 @@ if (PQsetClientEncoding(connection, clientEncoding.c_str()))
     {
     strError = PQerrorMessage(connection);
     printfd(__FILE__, "POSTGRESQL_STORE::Reset(): '%s'\n", strError.c_str());
-    return 1;
+    return -1;
     }
 
 return CheckVersion();