[−][src]Struct lv2_sys::LV2_State_Make_Path
Feature data for state:makePath (@ref LV2_STATE__makePath).
Fields
handle: LV2_State_Make_Path_Handle
Opaque host data.
path: Option<unsafe extern "C" fn(handle: LV2_State_Make_Path_Handle, path: *const c_char) -> *mut c_char>
Return a path the plugin may use to create a new file.
@param handle MUST be the handle
member of this struct.
@param path The path of the new file within a namespace unique to this
plugin instance.
@return The absolute path to use for the new file.
This function can be used by plugins to create files and directories, either at state saving time (if this feature is passed to LV2_State_Interface.save()) or any time (if this feature is passed to LV2_Descriptor.instantiate()).
The host MUST do whatever is necessary for the plugin to be able to create a file at the returned path (for example, using fopen()), including creating any leading directories.
If this function is passed to LV2_Descriptor.instantiate(), it may be called from any non-realtime context. If it is passed to LV2_State_Interface.save(), it may only be called within the dynamic scope of that function call.
The caller must free the returned value with LV2_State_Free_Path.free_path().
Trait Implementations
impl Clone for LV2_State_Make_Path
[src]
fn clone(&self) -> LV2_State_Make_Path
[src]
fn clone_from(&mut self, source: &Self)
1.0.0[src]
impl Copy for LV2_State_Make_Path
[src]
impl Debug for LV2_State_Make_Path
[src]
Auto Trait Implementations
impl RefUnwindSafe for LV2_State_Make_Path
impl !Send for LV2_State_Make_Path
impl !Sync for LV2_State_Make_Path
impl Unpin for LV2_State_Make_Path
impl UnwindSafe for LV2_State_Make_Path
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
[src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
[src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]
T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
[src]
impl<T> From<T> for T
[src]
impl<T, U> Into<U> for T where
U: From<T>,
[src]
U: From<T>,
impl<T> ToOwned for T where
T: Clone,
[src]
T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
[src]
pub fn clone_into(&self, target: &mut T)
[src]
impl<T, U> TryFrom<U> for T where
U: Into<T>,
[src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
[src]
U: TryFrom<T>,