func Gets() (s string) {
cs := C.getstring()
if cs == nil {
panic("input.Gets: I/O error or out of memory")
}
s = C.GoString(cs)
C.free(unsafe.Pointer(cs))
return
}
func (p *Comment) UserComments() (UserComments []string) {
if p.user_comments == nil {
return nil
}
UserComments = make([]string, int(p.comments))
for i := 0; i < int(p.comments); i++ {
UserComments[i] = C.GoString(C.getstring(p.user_comments, C.int(i)))
}
return
}
//Get hostnames where a particular block (determined by pos & blocksize) of a file is stored.
//path: The path of the file.
//start: The start of the block.
//length: The length of the block.
//Returns a 2-D slice of blocks-hosts, or nil on error.
func (fs *Fs) GetHosts(path string, start, length int64) ([][]string, error) {
p := C.CString(path)
defer C.free(unsafe.Pointer(p))
ret, err := C.hdfsGetHosts(fs.cptr, p, C.tOffset(start), C.tOffset(length))
if ret == (***C.char)(unsafe.Pointer(uintptr(0))) {
return nil, err
}
defer C.hdfsFreeHosts(ret)
i := int(C.getlen(ret))
j := int(C.getl(ret))
s := make([][]string, i)
for k, _ := range s {
s[k] = make([]string, j)
for p, _ := range s[k] {
s[k][p] = C.GoString(C.getstring(ret, C.int(k), C.int(p)))
}
}
return s, nil
}