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#ifndef _IPXE_FAULT_H
#define _IPXE_FAULT_H
/** @file
*
* Fault injection
*
*/
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <stdint.h>
#include <config/fault.h>
extern int inject_fault_nonzero ( unsigned int rate );
extern void inject_corruption_nonzero ( unsigned int rate, const void *data,
size_t len );
/**
* Inject fault with a specified probability
*
* @v rate Reciprocal of fault probability (zero for no faults)
* @ret rc Return status code
*/
static inline __attribute__ (( always_inline )) int
inject_fault ( unsigned int rate ) {
/* Force dead code elimination in non-fault-injecting builds */
if ( rate == 0 )
return 0;
return inject_fault_nonzero ( rate );
}
/**
* Corrupt data with a specified probability
*
* @v rate Reciprocal of fault probability (zero for no faults)
* @v data Data
* @v len Length of data
* @ret rc Return status code
*/
static inline __attribute__ (( always_inline )) void
inject_corruption ( unsigned int rate, const void *data, size_t len ) {
/* Force dead code elimination in non-fault-injecting builds */
if ( rate == 0 )
return;
return inject_corruption_nonzero ( rate, data, len );
}
#endif /* _IPXE_FAULT_H */
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