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iPXE is fundamentally asynchronous in operation: some operations continue in the background even after the foreground has continued to a new task. For example, the closing FIN/ACK exchanges of a TCP connection will take place in the background after an HTTP download has completed. Signed-off-by: Michael Brown <mcb30@ipxe.org>
35 lines
680 B
C
35 lines
680 B
C
#ifndef _IPXE_PENDING_H
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#define _IPXE_PENDING_H
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/** @file
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*
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* Pending operations
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*
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*/
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FILE_LICENCE ( GPL2_OR_LATER );
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#include <ipxe/list.h>
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/** A pending operation */
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struct pending_operation {
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/** Pending count */
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unsigned int count;
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};
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/**
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* Check if an operation is pending
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*
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* @v pending Pending operation
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* @v is_pending Operation is pending
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*/
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static inline int is_pending ( struct pending_operation *pending ) {
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return ( pending->count != 0 );
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}
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extern void pending_get ( struct pending_operation *pending );
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extern void pending_put ( struct pending_operation *pending );
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extern int pending_wait ( unsigned long timeout );
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#endif /* _IPXE_PENDING_H */
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