Fix Issue #182

Prevent loading modules compiled for a different version

include/proxysql_structs.h

@@ -361,6 +361,8 @@ struct _global_variables_t {
 	//pthread_rwlock_t rwlock_global;
 	pthread_rwlock_t rwlock_usernames;
 
+	bool has_debug;
+
 	volatile int shutdown;
 	bool nostart;
 	int reload;

lib/Standard_MySQL_Authentication.cpp

@@ -40,6 +40,14 @@ class Standard_MySQL_Authentication: public MySQL_Authentication {
 //	PtrArray cred_array;
 	public:
 	Standard_MySQL_Authentication() {
+#ifdef DEBUG
+		if (glovars.has_debug==false) {
+#else
+		if (glovars.has_debug==true) {
+#endif /* DEBUG */
+			perror("Incompatible debagging version");
+			exit(EXIT_FAILURE);
+		}
 		spinlock_rwlock_init(&creds_backends.lock);
 		spinlock_rwlock_init(&creds_frontends.lock);
 	};

lib/Standard_MySQL_Thread.cpp

@@ -205,6 +205,14 @@ class Standard_MySQL_Threads_Handler: public MySQL_Threads_Handler
 	} variables;
 	public:
 	Standard_MySQL_Threads_Handler() {
+#ifdef DEBUG
+		if (glovars.has_debug==false) {
+#else
+		if (glovars.has_debug==true) {
+#endif /* DEBUG */
+			perror("Incompatible debagging version");
+			exit(EXIT_FAILURE);
+		}
 		num_threads=0;
 		mysql_threads=NULL;
 		stacksize=0;

lib/Standard_ProxySQL_Admin.cpp

@@ -1319,6 +1319,14 @@ public:
 */
 Standard_ProxySQL_Admin::Standard_ProxySQL_Admin() {
 //	int i;
+#ifdef DEBUG
+		if (glovars.has_debug==false) {
+#else
+		if (glovars.has_debug==true) {
+#endif /* DEBUG */
+			perror("Incompatible debagging version");
+			exit(EXIT_FAILURE);
+		}
 
 	SPA=this;
 	spinlock_rwlock_init(&rwlock);

lib/Standard_Query_Cache.cpp

@@ -321,6 +321,14 @@ virtual double area() const {
 };
 
 Standard_Query_Cache() {
+#ifdef DEBUG
+	if (glovars.has_debug==false) {
+#else
+	if (glovars.has_debug==true) {
+#endif /* DEBUG */
+		perror("Incompatible debagging version");
+		exit(EXIT_FAILURE);
+	}
 	QCnow=time(NULL);
 	//test=0;
 	size=SHARED_QUERY_CACHE_HASH_TABLES;

lib/Standard_Query_Processor.cpp

@@ -243,6 +243,14 @@ protected:
 
 public:
 Standard_Query_Processor() {
+#ifdef DEBUG
+	if (glovars.has_debug==false) {
+#else
+	if (glovars.has_debug==true) {
+#endif /* DEBUG */
+		perror("Incompatible debagging version");
+		exit(EXIT_FAILURE);
+	}
 	proxy_debug(PROXY_DEBUG_MYSQL_QUERY_PROCESSOR, 4, "Initializing Query Processor with version=0\n");
 	spinlock_rwlock_init(&rwlock);
 	version=0;

src/main.cpp

@@ -190,6 +190,12 @@ int main(int argc, const char * argv[]) {
 
 
 {
+#ifdef DEBUG
+	glovars.has_debug=true;
+#else
+	glovars.has_debug=false;
+#endif /* DEBUG */
+
 	__thr_sfp=l_mem_init();
 
 	{

src/proxysql_global.cpp

@@ -3,4 +3,3 @@
 //#include "proxysql_glovars.hpp"
 #include "cpp.h"
 //ProxySQL_GlobalVariables GloVars;
-