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doc: update method docs 

Signed-off-by: Noah Watkins <noahwatkins@gmail.com>
This commit is contained in:
Noah Watkins 2014-05-24 11:28:19 -07:00
parent e9bf732345
commit af6b92d0e0
1 changed files with 10 additions and 2 deletions
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12
pool.go
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@ -7,10 +7,13 @@ import "C"
import "unsafe" import "unsafe"
// Pool represents a context for performing I/O within a pool.
type Pool struct { type Pool struct {
ioctx C.rados_ioctx_t ioctx C.rados_ioctx_t
} }
// Write writes len(data) bytes to the object with key oid starting at byte
// offset offset. It returns an error, if any.
func (p *Pool) Write(oid string, data []byte, offset uint64) error { func (p *Pool) Write(oid string, data []byte, offset uint64) error {
c_oid := C.CString(oid) c_oid := C.CString(oid)
defer C.free(unsafe.Pointer(c_oid)) defer C.free(unsafe.Pointer(c_oid))
@ -27,7 +30,8 @@ func (p *Pool) Write(oid string, data []byte, offset uint64) error {
} }
} }
// Read // Read reads up to len(data) bytes from the object with key oid starting at byte
// offset offset. It returns the number of bytes read and an error, if any.
func (p *Pool) Read(oid string, data []byte, offset uint64) (int, error) { func (p *Pool) Read(oid string, data []byte, offset uint64) (int, error) {
if len(data) == 0 { if len(data) == 0 {
return 0, nil return 0, nil
@ -50,7 +54,7 @@ func (p *Pool) Read(oid string, data []byte, offset uint64) (int, error) {
} }
} }
// Delete // Delete deletes the object with key oid. It returns an error, if any.
func (p *Pool) Delete(oid string) error { func (p *Pool) Delete(oid string) error {
c_oid := C.CString(oid) c_oid := C.CString(oid)
defer C.free(unsafe.Pointer(c_oid)) defer C.free(unsafe.Pointer(c_oid))
@ -64,6 +68,10 @@ func (p *Pool) Delete(oid string) error {
} }
} }
// Truncate resizes the object with key oid to size size. If the operation
// enlarges the object, the new area is logically filled with zeroes. If the
// operation shrinks the object, the excess data is removed. It returns an
// error, if any.
func (p *Pool) Truncate(oid string, size uint64) error { func (p *Pool) Truncate(oid string, size uint64) error {
c_oid := C.CString(oid) c_oid := C.CString(oid)
defer C.free(unsafe.Pointer(c_oid)) defer C.free(unsafe.Pointer(c_oid))