Unify logging (make it always blocking in exchange for memory)

src/3proxy.c

@@ -19,7 +19,6 @@
 #endif
 
 FILE * confopen();
-extern unsigned char tmpbuf[1024];
 extern unsigned char *strings[];
 extern FILE *writable;
 extern struct counter_header cheader;
@@ -65,9 +64,9 @@ void __stdcall CommandHandler( DWORD dwCommand )
 	Sleep(2000);
         SetStatus( SERVICE_STOPPED, 0, 0 );
 #ifndef NOODBC
-	pthread_mutex_lock(&odbc_mutex);
+	pthread_mutex_lock(&log_mutex);
 	close_sql();
-	pthread_mutex_unlock(&odbc_mutex);
+	pthread_mutex_unlock(&log_mutex);
 #endif
         break;
     case SERVICE_CONTROL_PAUSE:
@@ -120,9 +119,9 @@ void mysigterm (int sig){
 	usleep(999*SLEEPTIME);
 	usleep(999*SLEEPTIME);
 #ifndef NOODBC
-	pthread_mutex_lock(&odbc_mutex);
+	pthread_mutex_lock(&log_mutex);
 	close_sql();
-	pthread_mutex_unlock(&odbc_mutex);
+	pthread_mutex_unlock(&log_mutex);
 #endif
 	conf.timetoexit = 1;
 }
@@ -519,9 +518,6 @@ int WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLine, int
   pthread_mutex_init(&hash_mutex, NULL);
   pthread_mutex_init(&tc_mutex, NULL);
   pthread_mutex_init(&pwl_mutex, NULL);
-#ifndef NOODBC
-  pthread_mutex_init(&odbc_mutex, NULL);
-#endif
 
   freeconf(&conf);
   res = readconfig(fp);

src/auth.c

@@ -1296,46 +1296,45 @@ void sqlerr (char *buf){
 		fprintf(conf.stdlog, "%s\n", buf);
 		fflush(conf.stdlog);
 	}
-	pthread_mutex_unlock(&odbc_mutex);
+	pthread_mutex_unlock(&log_mutex);
 }
 
 void logsql(struct clientparam * param, const unsigned char *s) {
-	unsigned char buf[4096];
 	SQLRETURN ret;
 	int len;
 
-	len = dobuf(param, buf, s, "\'");
 
 	if(param->nolog) return;
-	pthread_mutex_lock(&odbc_mutex);
+	pthread_mutex_lock(&log_mutex);
+	len = dobuf(param, tmpbuf, s, "\'");
 
 	if(attempt > 5){
 		time_t t;
 
 		t = time(0);
 		if (t - attempt_time < 180){
-			sqlerr(buf);
+			sqlerr(tmpbuf);
 			return;
 		}
 	}
 	if(!hstmt){
 		if(!init_sql(sqlstring)) {
-			sqlerr(buf);
+			sqlerr(tmpbuf);
 			return;
 		}
 	}
 	if(hstmt){
-		ret = SQLExecDirect(hstmt, (SQLCHAR *)buf, (SQLINTEGER)len);
+		ret = SQLExecDirect(hstmt, (SQLCHAR *)tmpbuf, (SQLINTEGER)len);
 		if(ret != SQL_SUCCESS && ret != SQL_SUCCESS_WITH_INFO){
 			close_sql();
 			if(!init_sql(sqlstring)){
-				sqlerr(buf);
+				sqlerr(tmpbuf);
 				return;
 			}
 			if(hstmt) {
-				ret = SQLExecDirect(hstmt, (SQLCHAR *)buf, (SQLINTEGER)len);
+				ret = SQLExecDirect(hstmt, (SQLCHAR *)tmpbuf, (SQLINTEGER)len);
 				if(ret != SQL_SUCCESS && ret != SQL_SUCCESS_WITH_INFO){
-					sqlerr(buf);
+					sqlerr(tmpbuf);
 					return;
 				}
 				attempt = 0;
@@ -1343,7 +1342,7 @@ void logsql(struct clientparam * param, const unsigned char *s) {
 		}
 		attempt = 0;
 	}
-	pthread_mutex_unlock(&odbc_mutex);
+	pthread_mutex_unlock(&log_mutex);
 }
 
 #endif

src/common.c

@@ -603,9 +603,9 @@ void lognone(struct clientparam * param, const unsigned char *s) {
 }
 pthread_mutex_t log_mutex;
 int logmutexinit = 0;
+unsigned char tmpbuf[4096];
 
 void logstdout(struct clientparam * param, const unsigned char *s) {
-	unsigned char buf[4096];
 	FILE *log;
 
 	if(!logmutexinit){
@@ -614,8 +614,8 @@ void logstdout(struct clientparam * param, const unsigned char *s) {
 	}
 	pthread_mutex_lock(&log_mutex);
 	log = param->srv->stdlog?param->srv->stdlog:conf.stdlog?conf.stdlog:stdout;
-	dobuf(param, buf, s, NULL);
+	dobuf(param, tmpbuf, s, NULL);
-	if(!param->nolog)if(fprintf(log, "%s\n", buf) < 0) {
+	if(!param->nolog)if(fprintf(log, "%s\n", tmpbuf) < 0) {
 		perror("printf()");
 	};
 	if(log != conf.stdlog)fflush(log);
@@ -623,10 +623,15 @@ void logstdout(struct clientparam * param, const unsigned char *s) {
 }
 #ifndef _WIN32
 void logsyslog(struct clientparam * param, const unsigned char *s) {
-	unsigned char buf[4096];
 
-	dobuf(param, buf, s, NULL);
+	if(!logmutexinit){
-	if(!param->nolog)syslog(LOG_INFO, "%s", buf);
+		pthread_mutex_init(&log_mutex, NULL);
+		logmutexinit = 1;
+	}
+	pthread_mutex_lock(&log_mutex);
+	dobuf(param, tmpbuf, s, NULL)
+	if(!param->nolog)syslog(LOG_INFO, "%s", tmpbuf);
+	pthread_mutex_unlock(&log_mutex);
 }
 #endif
 

src/conf.c

@@ -16,14 +16,9 @@ pthread_mutex_t pwl_mutex;
 pthread_mutex_t hash_mutex;
 pthread_mutex_t config_mutex;
 
-#ifndef NOODBC
-pthread_mutex_t odbc_mutex;
-#endif
-
 int haveerror = 0;
 int linenum = 0;
 
-unsigned char tmpbuf[1024];
 FILE *writable;
 struct counter_header cheader = {"3CF", (time_t)0};
 struct counter_record crecord;
@@ -302,10 +297,10 @@ static int h_log(int argc, unsigned char ** argv){
 		}
 #ifndef NOODBC
 		else if(*argv[1]=='&'){
-			pthread_mutex_lock(&odbc_mutex);
+			pthread_mutex_lock(&log_mutex);
 			close_sql();
 			init_sql((char *)argv[1]+1);
-			pthread_mutex_unlock(&odbc_mutex);
+			pthread_mutex_unlock(&log_mutex);
 			conf.logfunc = logsql;
 		}
 #endif

src/proxy.h

@@ -309,7 +309,7 @@ struct datatype;
 struct dictionary;
 struct node;
 struct property;
-
+extern unsigned char tmpbuf[4096];
 extern pthread_mutex_t config_mutex;
 extern pthread_mutex_t bandlim_mutex;
 extern pthread_mutex_t hash_mutex;
@@ -317,9 +317,6 @@ extern pthread_mutex_t tc_mutex;
 extern pthread_mutex_t pwl_mutex;
 extern pthread_mutex_t log_mutex;
 extern int logmutexinit;
-#ifndef NOODBC
-extern pthread_mutex_t odbc_mutex;
-#endif
 
 extern struct datatype datatypes[64];