| [Overview][Constants][Types][Procedures and functions] | Reference for unit 'BaseUnix' (#rtl) |
Check whether a filedescriptor is set
Source position: bunxovlh.inc line 72
function fpFD_ISSET( |
fdno: cint; |
const nset: TFDSet |
):cint; |
FpFD_Set Checks whether file descriptor fdNo in filedescriptor set fds is set. It returns zero if the descriptor is not set, 1 if it is set. If the number of the filedescriptor it wrong, -1 is returned.
For an example, see FpSelect.
If an invald file descriptor number is passed, -1 is returned.
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Wait for events on file descriptors |
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Clear all file descriptors in set |
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Clears a filedescriptor in a set |
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Set a filedescriptor in a set |
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