diff --git a/cworker.c b/cworker.c
index 357da43..5e8ee27 100644
--- a/cworker.c
+++ b/cworker.c
@@ -48,7 +48,7 @@ static int mkdirall(const char* path, mode_t mode) {
     return 0;
 }
 
-char* last(const char* path) {
+char* path_last(const char* path) {
     char buffer[1024];
     size_t psize = strlen(path);
     strcpy(buffer, path);
@@ -68,7 +68,7 @@ char* last(const char* path) {
     return res;
 }
 
-char* file(const char* path) {
+char* path_file(const char* path) {
     char buffer[1024];
     size_t psize = strlen(path);
     strcpy(buffer, path);
@@ -163,7 +163,6 @@ int cworker_writepid(const cworker_t* worker) {
         log_error("createing run dir error: %s %s", strerror(errno), srv_runpath);
     }
 
-
     int pid_fd = -1;
     if ((pid_fd = open(srv_runpath, O_WRONLY|O_TRUNC|O_CREAT, S_IRUSR|S_IWUSR|S_IRGRP)) < 0) {
         log_error("open pid file error %s %s", strerror(errno), srv_runpath);
@@ -213,6 +212,8 @@ int cworker_detach(const cworker_t* worker) {
     }
 
     if (childpid == 0) {
+        log_debug("service forkerd");
+        return 0;
         // child
     } else {
         // parent