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Merge pull request #908 from ishehadeh/master

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Windows: Fix `ev/read` hanging when called on stream from `os/open`
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Calvin Rose 2022-01-08 11:26:48 -06:00 committed by GitHub
commit ab53208f47
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src/core/ev.c
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@ -2219,6 +2219,10 @@ JanetAsyncStatus ev_machine_read(JanetListenerState *s, JanetAsyncEvent event) {
} else } else
#endif #endif
{ {
// Some handles (not all) read from the offset in lopOverlapped
// if its not set before calling `ReadFile` these streams will always read from offset 0
state->overlapped.Offset = (DWORD) state->bytes_read;
status = ReadFile(s->stream->handle, state->chunk_buf, chunk_size, NULL, &state->overlapped); status = ReadFile(s->stream->handle, state->chunk_buf, chunk_size, NULL, &state->overlapped);
if (!status && (ERROR_IO_PENDING != WSAGetLastError())) { if (!status && (ERROR_IO_PENDING != WSAGetLastError())) {
if (WSAGetLastError() == ERROR_BROKEN_PIPE) { if (WSAGetLastError() == ERROR_BROKEN_PIPE) {