Struct mozjs::jsapi::mozilla::CorruptionCanary

#[repr(C)]
pub struct CorruptionCanary {
    pub _base: CorruptionCanaryForStatics,
}

This class is designed to cause crashes when various kinds of memory corruption are observed. For instance, let’s say we have a class C where we suspect out-of-bounds writes to some members. We can insert a member of type Poison near the members we suspect are being corrupted by out-of-bounds writes. Or perhaps we have a class K we suspect is subject to use-after-free violations, in which case it doesn’t particularly matter where in the class we add the member of type Poison.

In either case, we then insert calls to Check() throughout the code. Doing so enables us to narrow down the location where the corruption is occurring. A pleasant side-effect of these additional Check() calls is that crash signatures may become more regular, as crashes will ideally occur consolidated at the point of a Check(), rather than scattered about at various uses of the corrupted memory.

Fields

_base: CorruptionCanaryForStatics

Trait Implementations

impl Debug for CorruptionCanary

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl PartialEq<CorruptionCanary> for CorruptionCanary

fn eq(&self, other: &CorruptionCanary) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for CorruptionCanary