---
title: tcps_sack_send_blocks
framework: Kernel
role: symbol
role_heading: Instance Property
platforms: [macOS 12.0+]
path: kernel/tcpstat/3754943-tcps_sack_send_blocks
---

# tcps_sack_send_blocks

## Declaration

```occ
u_int32_t tcps_sack_send_blocks;
```