afc_client_free
afc_client_new
afc_client_start_service
afc_client_t
afc_dictionary_free
afc_error_t
afc_file_close
afc_file_lock
afc_file_mode_t
afc_file_open
afc_file_read
afc_file_seek
afc_file_tell
afc_file_truncate
afc_file_write
afc_get_device_info
afc_get_device_info_key
afc_get_device_info_plist
afc_get_file_info
afc_get_file_info_plist
afc_link_type_t
afc_lock_op_t
afc_make_directory
afc_make_link
afc_read_directory
afc_remove_path
afc_remove_path_and_contents
afc_rename_path
AFC_SERVICE_NAME
afc_set_file_time
afc_strerror
afc_truncate

## afc_file_lock()

afc_error_t afc_file_lock | ( | afc_client_t | client,
|  | uint64_t | handle,
|  | afc_lock_op_t | operation )

Locks or unlocks a file on the device.

Makes use of flock on the device.

See also
  http://developer.apple.com/documentation/Darwin/Reference/ManPages/man2/flock.2.html

Parameters

  client | The client to lock the file with.
  handle | File handle of a previously opened file.
  operation | the lock or unlock operation to perform, this is one of AFC_LOCK_SH (shared lock), AFC_LOCK_EX (exclusive lock), or AFC_LOCK_UN (unlock).