diff options
Diffstat (limited to 'src/include/ipxe/fault.h')
| -rw-r--r-- | src/include/ipxe/fault.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/include/ipxe/fault.h b/src/include/ipxe/fault.h index 32aa064..356296c 100644 --- a/src/include/ipxe/fault.h +++ b/src/include/ipxe/fault.h @@ -9,9 +9,12 @@ 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 @@ -29,4 +32,22 @@ inject_fault ( unsigned int rate ) { 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 */ |