rename __rolltmp to __tokudb_rolltmp closes[t:2184]

git-svn-id: file:///svn/toku/tokudb@15884 c7de825b-a66e-492c-adef-691d508d4ae1

newbrt/recover.c

@@ -731,7 +731,7 @@ static int toku_delete_rolltmp_files (const char *log_dir) {
     }
     int result = 0;
     while ((de=readdir(d))) {
-	char rolltmp_prefix[] = "__rolltmp.";
+	char rolltmp_prefix[] = "__tokudb_rolltmp.";
 	int r = memcmp(de->d_name, rolltmp_prefix, sizeof(rolltmp_prefix) - 1);
 	if (r == 0) {
 	    int fnamelen = strlen(log_dir) + strlen(de->d_name) + 2; // One for the slash and one for the trailing NUL.

newbrt/rollback.c

@@ -240,7 +240,7 @@ int toku_maybe_spill_rollbacks (TOKUTXN txn) {
 	assert((ssize_t)w.ndone==bufsize);
 	txn->oldest_logentry = txn->newest_logentry = 0;
 	if (txn->rollentry_fd<0) {
-	    const char filenamepart[] = "/__rolltmp.";
+	    const char filenamepart[] = "/__tokudb_rolltmp.";
 	    int fnamelen = strlen(txn->logger->directory)+sizeof(filenamepart)+16;
 	    assert(txn->rollentry_filename==0);
 	    txn->rollentry_filename = toku_malloc(fnamelen);