First tests.

server/modules/monitor/CMakeLists.txt

@@ -1,4 +1,4 @@
-add_library(mysqlmon SHARED mysql_mon.c)
+add_library(mysqlmon SHARED mysql_mon.c mon_exec.c)
 target_link_libraries(mysqlmon log_manager utils)
 install(TARGETS mysqlmon DESTINATION modules)
 

server/modules/monitor/mon_exec.c

@@ -0,0 +1,38 @@
+#include <mon_exec.h>
+
+/** Defined in log_manager.cc */
+extern int            lm_enabled_logfiles_bitmask;
+extern size_t         log_ses_count[];
+extern __thread log_info_t tls_log_info;
+
+/**
+ *Execute a command in a separate process.
+ *@param cmd Command to execute
+ *@return 0 on success, -1 on error.
+ */
+int monitor_exec_cmd(char* cmd)
+{
+    int rval = 0;
+    pid_t pid;
+    
+    pid = fork();
+
+    if(pid < 0)
+    {
+        skygw_log_write(LOGFILE_ERROR,"Error: Failed to execute command '%s', fork failed: [%d] %s",
+                        cmd,errno,strerror(errno));
+        rval = -1;
+    }
+    else if(pid == 0)
+    {
+        /** Child process, execute command */
+        execl(cmd,cmd,NULL);
+    }
+    else
+    {
+     LOGIF(LD,skygw_log_write(LD,"[monitor_exec_cmd] Forked child process %d : %s.",pid,cmd));
+    }
+
+    return rval;
+    
+}

server/modules/monitor/mon_exec.h

@@ -0,0 +1,13 @@
+#ifndef MON_EXEC_HG
+#define MON_EXEC_HG
+
+#include <mon_exec.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <skygw_utils.h>
+#include <log_manager.h>
+
+int monitor_exec_cmd(char* cmd);
+
+#endif

server/modules/monitor/mysql_mon.c

@@ -64,6 +64,7 @@
 #include <dcb.h>
 #include <modinfo.h>
 #include <maxconfig.h>
+#include <mon_exec.h>
 
 /** Defined in log_manager.cc */
 extern int            lm_enabled_logfiles_bitmask;
@@ -184,6 +185,7 @@ CONFIG_PARAMETER* params = (CONFIG_PARAMETER*)opt;
             handle->connect_timeout=DEFAULT_CONNECT_TIMEOUT;
             handle->read_timeout=DEFAULT_READ_TIMEOUT;
             handle->write_timeout=DEFAULT_WRITE_TIMEOUT;
+	    handle->script = NULL;
             spinlock_init(&handle->lock);
         }
 
@@ -193,6 +195,8 @@ CONFIG_PARAMETER* params = (CONFIG_PARAMETER*)opt;
 		handle->detectStaleMaster = config_truth_value(params->value);
 	    else if(!strcmp(params->name,"detect_replication_lag"))
 		handle->replicationHeartbeat = config_truth_value(params->value);
+	    else if(!strcmp(params->name,"script"))
+            handle->script = strdup(params->value);
 	    params = params->next;
 	}
 
@@ -696,7 +700,15 @@ int log_no_master = 1;
 					!(SERVER_IS_IN_CLUSTER(ptr->server)))
 				{
 					dcb_call_foreach(ptr->server,DCB_REASON_NOT_RESPONDING);
-				}				
+				}		
+
+/*
+                if(handle->script)
+                {
+                    if(monitor_exec_cmd(handle->script))
+                        skygw_log_write(LOGFILE_ERROR,"Error: Failed to execute command '%s' on server state change.",handle->script);
+                }
+*/
                         }
                         
                         if (mon_status_changed(ptr))

server/modules/monitor/mysqlmon.h

@@ -77,6 +77,7 @@ typedef struct {
 	int	write_timeout;		/**< Timeout in seconds for each attempt to write to the server.
 					 * There are retries and the total effective timeout value is two times the option value.
 					 */
+    char *script;0
 } MYSQL_MONITOR;
 
 #define MONITOR_RUNNING		1

server/modules/protocol/CMakeLists.txt

@@ -6,13 +6,13 @@ add_library(MySQLBackend SHARED mysql_backend.c mysql_common.c)
 target_link_libraries(MySQLBackend log_manager utils)
 install(TARGETS MySQLBackend DESTINATION modules)
 
-add_library(mongoclient SHARED mongo_client.c mysql_common.c)
+add_library(plainclient SHARED plainclient.c mysql_common.c)
-target_link_libraries(mongoclient log_manager utils)
+target_link_libraries(plainclient log_manager utils)
-install(TARGETS mongoclient DESTINATION modules)
+install(TARGETS plainclient DESTINATION modules)
 
-add_library(mongobackend SHARED mongo_backend.c mysql_common.c)
+add_library(plainbackend SHARED plainbackend.c mysql_common.c)
-target_link_libraries(mongobackend log_manager utils)
+target_link_libraries(plainbackend log_manager utils)
-install(TARGETS mongobackend DESTINATION modules)
+install(TARGETS plainbackend DESTINATION modules)
 
 
 add_library(telnetd SHARED telnetd.c)