gfs_utimes() sets the access and modification times of the file pointed to by the gfarm_url argument to the value of the tsp argument. The tsp argument is an array of gfarm_timespec structures. The first array member represents the access time, and the second member represents the modification time. The gfarm_timespec structure is:
| 	struct gfarm_timespec {
		unsigned int tv_sec;	/* seconds */
		unsigned int tv_nsec;	/* nanoseconds */
	}; | 
If the tsp argument is a null pointer, the access and modification times of the file are set to the current time.
The function terminated successfully.
gfarm_url does not start with the gfarm: prefix.
Insufficient memory was available.
User authentication failed when connecting to gfmd(8).
gfarm_url points outside your accessible address space.
gfarm_url does not exist.
An error except the above occurred. The reason is shown by its pointed strings.