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Clean up stack destructor

This commit is contained in:
Steven Fackler 2016-11-01 19:12:38 -07:00
parent 77b76ed8a8
commit 79c51d5e51
1 changed files with 14 additions and 27 deletions
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41
openssl/src/stack.rs
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@ -9,12 +9,19 @@ use libc::c_int;
use ffi;
use types::{OpenSslType, Ref};
/// Trait implemented by stackable types. This must *only* be
/// implemented on opaque types that can be directly casted into their
/// `CType`.
#[cfg(ossl10x)]
use ffi::{sk_pop as OPENSSL_sk_pop, sk_free as OPENSSL_sk_free};
#[cfg(ossl110)]
use ffi::{OPENSSL_sk_pop, OPENSSL_sk_free};
/// Trait implemented by types which can be placed in a stack.
///
/// Like `OpenSslType`, it should not be implemented for any type outside
/// of this crate.
pub trait Stackable: OpenSslType {
/// C stack type for this element. Generally called
/// `stack_st_{ELEMENT_TYPE}`, normally hidden by the
/// The C stack type for this element.
///
/// Generally called `stack_st_{ELEMENT_TYPE}`, normally hidden by the
/// `STACK_OF(ELEMENT_TYPE)` macro in the OpenSSL API.
type StackType;
}
@ -30,11 +37,10 @@ impl<T: Stackable> Stack<T> {
}
impl<T: Stackable> Drop for Stack<T> {
#[cfg(ossl10x)]
fn drop(&mut self) {
unsafe {
loop {
let ptr = ffi::sk_pop(self.as_stack());
let ptr = OPENSSL_sk_pop(self.as_stack());
if ptr.is_null() {
break;
@ -45,26 +51,7 @@ impl<T: Stackable> Drop for Stack<T> {
T::from_ptr(ptr as *mut _);
}
ffi::sk_free(self.0 as *mut _);
}
}
#[cfg(ossl110)]
fn drop(&mut self) {
unsafe {
loop {
let ptr = ffi::OPENSSL_sk_pop(self.as_stack());
if ptr.is_null() {
break;
}
// Build the owned version of the object just to run
// its `drop` implementation and delete the item.
T::from_ptr(ptr as *mut _);
}
ffi::OPENSSL_sk_free(self.0 as *mut _);
OPENSSL_sk_free(self.0 as *mut _);
}
}
}