Add Send and Sync to FlipHistogram and FlipPool (Fixes #2)

Author: cwfitzgerald

nv-flip/src/lib.rs

@@ -343,6 +343,10 @@ pub struct FlipHistogram<'a> {
     inner: *mut nv_flip_sys::FlipImageHistogramRef,
     _phantom: PhantomData<&'a ()>,
 }
+
+unsafe impl Send for FlipHistogram<'_> {}
+unsafe impl Sync for FlipHistogram<'_> {}
+
 impl<'a> FlipHistogram<'a> {
     /// Returns the difference between the maximum and minimum bucket values.
     pub fn bucket_size(&self) -> usize {
@@ -463,6 +467,9 @@ pub struct FlipPool {
     values_added: usize,
 }
 
+unsafe impl Send for FlipPool {}
+unsafe impl Sync for FlipPool {}
+
 impl FlipPool {
     /// Creates a new pool with 100 buckets.
     pub fn new() -> Self {