498   static int available(int fd, jlong *bytes);

   498   static int available(int fd, jlong *bytes);

   499 

   499 

   500   //File i/o operations

   500   //File i/o operations

   501 

   501 

   502   static size_t read(int fd, void *buf, unsigned int nBytes);

   502   static size_t read(int fd, void *buf, unsigned int nBytes);

   503   static size_t restartable_read(int fd, void *buf, unsigned int nBytes);

   504   static size_t restartable_read(int fd, void *buf, unsigned int nBytes);

   504   static size_t write(int fd, const void *buf, unsigned int nBytes);

   505   static size_t write(int fd, const void *buf, unsigned int nBytes);

   505 

   506 

   506   // Reading directories.

   507   // Reading directories.

   507   static DIR*           opendir(const char* dirname);

   508   static DIR*           opendir(const char* dirname);