Разблокировка БД в случае обнаружения "зависшей" блокировки. Причина образования...

diff --git a/bin/weathermon b/bin/weathermon
index d2b53746f65ace65e7a4610bc42b0515633768f1..2c5419c218453ed67d908cbe12da39dcb647c918 100755 (executable)
--- a/bin/weathermon
+++ b/bin/weathermon
@@ -89,6 +89,14 @@ function printLog(str)
   end 
 end
 
   end 
 end
 

+function unlock_db(file)
+
+  print("Unlocking DB "..file)
+  os.execute("sqlite3 -readonly \""..file.."\" \".backup /tmp/weathermon.db\"")
+  os.execute("mv /tmp/weathermon.db \""..file.."\"")
+
+end
+

 function submitValue(type,id,param,val)
 
   val = tonumber(val)
 function submitValue(type,id,param,val)
 
   val = tonumber(val)


@@ -108,18 +116,31 @@ function submitValue(type,id,param,val)
       local backlog_con = assert(env:connect(backlogdb))
       backlog_con:execute('BEGIN TRANSACTION')
       backlog_con:execute(string.format("INSERT INTO queue(time_stamp,sensor_id,sensor,param,value) VALUES (datetime('now','localtime'),'%s','%s','%s',%f)",id,type,param,val))
       local backlog_con = assert(env:connect(backlogdb))
       backlog_con:execute('BEGIN TRANSACTION')
       backlog_con:execute(string.format("INSERT INTO queue(time_stamp,sensor_id,sensor,param,value) VALUES (datetime('now','localtime'),'%s','%s','%s',%f)",id,type,param,val))

-      backlog_con:execute('COMMIT')
+      local n,err = backlog_con:execute('COMMIT TRANSACTION')

       backlog_con:close()
       backlog_con:close()

+      
+      if err == "LuaSQL: database is locked" then
+        unlock_db(backlogdb);
+      end
+      

     end
 
   end
   
   if logdb then
     end
 
   end
   
   if logdb then

+    print(logdb)

     local log_con = assert(env:connect(logdb))
     log_con:execute('BEGIN TRANSACTION')
     log_con:execute(string.format("INSERT INTO log(time_stamp,sensor_id,sensor,param,value) VALUES (datetime('now','localtime'),'%s','%s','%s',%f)",id,type,param,val))
     local log_con = assert(env:connect(logdb))
     log_con:execute('BEGIN TRANSACTION')
     log_con:execute(string.format("INSERT INTO log(time_stamp,sensor_id,sensor,param,value) VALUES (datetime('now','localtime'),'%s','%s','%s',%f)",id,type,param,val))

-    log_con:execute('COMMIT')
+    local n,err = log_con:execute('COMMIT TRANSACTION')

     log_con:close()
     log_con:close()

+
+    print(n,err)
+
+    if err == "LuaSQL: database is locked" then
+      unlock_db(logdb);
+    end
+

   end
 
 end
   end
 
 end


@@ -395,7 +416,7 @@ while 1 do
     break
   end
 
     break
   end
 

-  pcall(function ()
+--  pcall(function ()

   
     printLog("Received: "..line)
     if startswith(line,'{') then
   
     printLog("Received: "..line)
     if startswith(line,'{') then


@@ -418,6 +439,6 @@ while 1 do
         io.close(f)
       end)  
     end
         io.close(f)
       end)  
     end

-  end)
+--  end)

     
 end
     
 end