Move fuzzer_start, fuzzer_stop and fuzzer_log to pline.c

src/pline.c

@@ -599,4 +599,61 @@ nhassert_failed(filepath, line)
     impossible("nhassert failed in file '%s' at line %d", filename, line);
 }
 
+static FILE * g_fuzzer_log_file = NULL;
+static int g_fuzzer_log_level = LOG_MINIMAL;
+
+/* fuzzer_start() starts the fuzzer opening the fuzzer log file */
+void
+fuzzer_start()
+{
+    if (!iflags.debug_fuzzer) {
+        const char * fq_replay;
+
+        iflags.debug_fuzzer = TRUE;
+        iflags.fuzzer_auto_start = FALSE;
+
+        nhassert(g_fuzzer_log_file == NULL);
+        fq_replay = fqname("fuzzer.log", SAVEPREFIX, 0);
+
+        g_fuzzer_log_file = fopen(fq_replay, "w");
+    }
+}
+
+/* fuzzer_stop() stops the fuzzer and close the fuzzer log file */
+void
+fuzzer_stop()
+{
+    if (iflags.debug_fuzzer) {
+        if(g_fuzzer_log_file != NULL) {
+            fclose(g_fuzzer_log_file);
+            g_fuzzer_log_file = NULL;
+        }
+    }
+}
+
+/* fuzzer_log() is used to place messages in the file 'fuzzer.log'.  This
+ * log is the primary tool for monitoring fuzzer activity and tracking down
+ * issues that the fuzzer is able to reproduce.
+ */
+void
+fuzzer_log
+VA_DECL2(int, lvl, const char *, str)
+{
+    VA_START(str);
+    VA_INIT(str, char *);
+
+    if (!g_fuzzer_log_file)
+        return;
+
+    if (iflags.verbose_logging_start != 0 &&
+        moves >= iflags.verbose_logging_start)
+        g_fuzzer_log_level = LOG_VERBOSE;
+
+    if (lvl <= g_fuzzer_log_level)
+        Vfprintf(g_fuzzer_log_file, str, VA_ARGS);
+
+    VA_END();
+}
+
+
 /*pline.c*/