# Sanitizer Barrier API

## Functions
SanitizerResult SANITIZERAPI | sanitizerGetCudaBarrierCount (CUfunction kernel, uint32_t *numBarriers)
| Get number of CUDA barriers used by a function.

## Detailed Description

Functions, types, and enums that implement the Sanitizer Barrier API.

## Function Documentation

SanitizerResult SANITIZERAPI sanitizerGetCudaBarrierCount | ( | CUfunction | kernel,
|  | uint32_t * | numBarriers |
| ) |  |  |

The module where `kernel` resides must have been instrumented using sanitizerPatchModule prior to calling this function. This function is only available for modules built with nvcc 11.2 or newer, it will return 0 otherwise.

Note:
  Thread-safety: this function is thread safe.

Parameters:

  `[in]` | kernel | CUDA function
  `[out]` | numBarriers | Number of CUDA barriers in the input CUDA function