restore exception state after destruction of fiber #303
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This fixes the problem with nix in Arch Linux as referenced in the issue. |
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In the destructor of fiber its context can be loaded. The exception state saved in
resume()/resume_with()can be restored during stack unwinding after aforced_unwindexception is thrown, which is caught afterwards, i.e. the exception state becomes corrupted.This patch ensures that the correct exception state is restored before the destructor of the fiber returns.
Fixes #302.