120         FILE* fp = fopen(filePath, "r");  in IsProcessExist()  local
121         if (fp == nullptr) {  in IsProcessExist()
126         if (fgets(buf, sizeof(buf) - 1, fp) == nullptr) {  in IsProcessExist()
127             fclose(fp);  in IsProcessExist()
140             fclose(fp);  in IsProcessExist()
143         fclose(fp);  in IsProcessExist()
216 inline int CustomFdFclose(FILE** fp)  in CustomFdFclose()  argument
218     int ret = fclose(*fp);  in CustomFdFclose()
220         *fp = nullptr;  in CustomFdFclose()
297 int CustomPclose(FILE* fp, int fds[], volatile pid_t& childPid, bool needUnblock)  in CustomPclose()  argument
300     CHECK_NOTNULL(fp, -1, "NOTE %s: fp is null", __func__);  in CustomPclose()
318         if (fileno(fp) == fds[READ]) {  in CustomPclose()
321         } else if (fileno(fp) == fds[WRITE]) {  in CustomPclose()
329     CHECK_TRUE(CustomFdFclose(&fp) == 0, -1, "CustomFdFclose failed!");  in CustomPclose()