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feat(ffi): unwind safety: shield FFI entrypoints with panic guard (#546)

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This PR implements widely accepted Rust programming practices for
dealing with panics across ABI (programming language) boundaries.

- Add panic_guard.rs to wrap FFI calls and prevent panic across FFI/ABI boundary (undefined behavior).
- Capture per-thread backtraces via a temporary panic hook
- After a panic, subsequent invocations are poisoned.
- Integrate with_unwind_guard across the engine, schema registry, and target registry exportis

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
This commit is contained in:
Anand Krishnamoorthi
2026-01-20 21:50:10 -06:00
committed by GitHub
parent 9426b2ec02
commit 80686d6ed1
21 changed files with 1008 additions and 501 deletions
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bindings/csharp/Regorus/SchemaRegistry.cs
+3 -3
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@@ -240,7 +240,7 @@ namespace Regorus
if (result.status != Internal.RegorusStatus.Ok)
{
var message = StringFromUTF8((IntPtr)result.error_message);
throw new Exception(message ?? "Unknown error occurred");
throw result.status.CreateException(message);
}
return result.data_type switch
@@ -265,7 +265,7 @@ namespace Regorus
if (result.status != Internal.RegorusStatus.Ok)
{
var message = StringFromUTF8((IntPtr)result.error_message);
throw new Exception(message ?? "Unknown error occurred");
throw result.status.CreateException(message);
}
return result.data_type == Internal.RegorusDataType.Boolean ? result.bool_value : false;
@@ -283,7 +283,7 @@ namespace Regorus
if (result.status != Internal.RegorusStatus.Ok)
{
var message = StringFromUTF8((IntPtr)result.error_message);
throw new Exception(message ?? "Unknown error occurred");
throw result.status.CreateException(message);
}
return result.data_type == Internal.RegorusDataType.Integer ? result.int_value : 0;