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Use a custom nogc_assert in cleanup code.

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Unfortunately the built-in assert GC allocates an exception, which means that if called directly or indirectly form a finalizer, the assertion will not become visible and instead an InvalidMemoryOperationError is thrown.

This implements a custom nogc_assert() function that directly prints the assertion message and uses abort() to end the process.
This commit is contained in:
Sönke Ludwig 2018-03-11 12:08:09 +01:00
parent acc35e1107
commit df78af96bb
9 changed files with 45 additions and 17 deletions
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source/eventcore/drivers/posix/sockets.d
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@ -804,7 +804,7 @@ final class PosixEventDriverSockets(Loop : PosixEventLoop) : EventDriverSockets
{
import taggedalgebraic : hasType;
auto slot = () @trusted { return &m_loop.m_fds[fd]; } ();
assert(slot.common.refCount > 0, "Releasing reference to unreferenced socket FD.");
nogc_assert(slot.common.refCount > 0, "Releasing reference to unreferenced socket FD.");
// listening sockets have an incremented the reference count because of setNotifyCallback
int base_refcount = slot.specific.hasType!StreamListenSocketSlot ? 1 : 0;
if (--slot.common.refCount == base_refcount) {