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444b159963
Send a signal whose handler is no-op to a blocking thread to wake up the blocking syscall with either EINTR equivalent or partial success. Unlike the approach taken in the `dev/interrupt_block_insn` branch (that is, signal + longjmp similarly to `OS_ENABLE_HW_BOUND_CHECK`), this PR does not use longjmp because: * longjmp from signal handler doesn't work on nuttx refer to https://github.com/apache/nuttx/issues/10326 * the singal+longjmp approach may be too difficult for average programmers who might implement host functions to deal with See also https://github.com/bytecodealliance/wasm-micro-runtime/issues/1910 |
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