New, yet primitive version of log writing functionality. Fixed some things in utils.

log_manager/test/testlog.c

@@ -0,0 +1,45 @@
+#include <stdio.h>
+#include <string.h>
+#include <skygw_utils.h>
+#include <log_manager.h>
+
+int main(int argc, char* argv[])
+{
+        int           err;
+        logmanager_t* lmgr;
+        char*         logstr;
+        
+        lmgr = skygw_logmanager_init(NULL, argc, argv);
+        
+        logstr = strdup("My name is Tracey");
+        err = skygw_log_write(NULL, lmgr, LOGFILE_TRACE, logstr);
+        free(logstr);
+        
+        logstr = strdup("My name is Stacey");
+        err = skygw_log_write_flush(NULL, lmgr, LOGFILE_TRACE, logstr);
+        free(logstr);
+        
+        skygw_logmanager_done(NULL, &lmgr);
+
+        logstr = strdup("My name is Philip");
+        err = skygw_log_write(NULL, lmgr, LOGFILE_TRACE, logstr);
+        free(logstr);
+        
+        lmgr = skygw_logmanager_init(NULL, argc, argv);
+        
+        logstr = strdup("A terrible error has occurred!");
+        err = skygw_log_write_flush(NULL, lmgr, LOGFILE_ERROR, logstr);
+        free(logstr);
+
+        logstr = strdup("Hi, how are you?");
+        err = skygw_log_write(NULL, lmgr, LOGFILE_MESSAGE, logstr);
+        free(logstr);
+
+        logstr = strdup("I'm doing fine!");
+        err = skygw_log_write(NULL, lmgr, LOGFILE_MESSAGE, logstr);
+        free(logstr);
+        
+return_err:
+        skygw_logmanager_done(NULL, &lmgr);
+        return err;
+}