Get the error status for an asynchronous I/O operation
#include <aio.h> int aio_error( const struct aiocb * aiocbptr );
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The aio_error() function returns the error status associated with the aiocb structure referenced by the aiocbptr argument. The error status for an asynchronous I/O operation is the errno value that's set by the corresponding read(), write(), or fsync() operation. If the operation hasn't yet been completed, the error status is EINPROGRESS.
One of:
Safety: | |
---|---|
Cancellation point | No |
Interrupt handler | No |
Signal handler | Yes |
Thread | Yes |
The first time you call an aio_* function, a thread pool is created, making your process multithreaded if it isn't already. The thread pool isn't destroyed until your process ends.