ceph/src/spdk/isa-l/include/mem_routines.h

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  29
  30 #include <stddef.h>
  31
  32 /**
  33  *  @file mem_routines.h
  34  *  @brief Interface to storage mem operations
  35  *
  36  *  Defines the interface for vector versions of common memory functions.
  37  */
  38
  39
  40 #ifndef _MEM_ROUTINES_H_
  41 #define _MEM_ROUTINES_H_
  42
  43 #ifdef __cplusplus
  44 extern "C" {
  45 #endif
  46
  47 /**
  48  * @brief Detect if a memory region is all zero
  49  *
  50  * Zero detect function with optimizations for large blocks > 128 bytes
  51  *
  52  * @param    mem   Pointer to memory region to test
  53  * @param    len   Length of region in bytes
  54  * @returns  0     - region is all zeros
  55  *           other - region has non zero bytes
  56  */
  57 int isal_zero_detect(void *mem, size_t len);
  58
  59 #ifdef __cplusplus
  60 }
  61 #endif
  62
  63 #endif // _MEM_ROUTINES_H_
  64