tcpconn_keepalive_posix_test.go

     1  // Copyright 2023 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  //go:build aix || darwin || dragonfly || freebsd || linux || netbsd || windows
     6  
     7  package net
     8  
     9  import (
    10  	"syscall"
    11  	"testing"
    12  	"time"
    13  )
    14  
    15  func getCurrentKeepAliveSettings(fd fdType) (cfg KeepAliveConfig, err error) {
    16  	tcpKeepAlive, err := syscall.GetsockoptInt(fd, syscall.SOL_SOCKET, syscall.SO_KEEPALIVE)
    17  	if err != nil {
    18  		return
    19  	}
    20  	tcpKeepAliveIdle, err := syscall.GetsockoptInt(fd, syscall.IPPROTO_TCP, syscall_TCP_KEEPIDLE)
    21  	if err != nil {
    22  		return
    23  	}
    24  	tcpKeepAliveInterval, err := syscall.GetsockoptInt(fd, syscall.IPPROTO_TCP, syscall_TCP_KEEPINTVL)
    25  	if err != nil {
    26  		return
    27  	}
    28  	tcpKeepAliveCount, err := syscall.GetsockoptInt(fd, syscall.IPPROTO_TCP, syscall_TCP_KEEPCNT)
    29  	if err != nil {
    30  		return
    31  	}
    32  	cfg = KeepAliveConfig{
    33  		Enable:   tcpKeepAlive != 0,
    34  		Idle:     time.Duration(tcpKeepAliveIdle) * time.Second,
    35  		Interval: time.Duration(tcpKeepAliveInterval) * time.Second,
    36  		Count:    tcpKeepAliveCount,
    37  	}
    38  	return
    39  }
    40  
    41  func verifyKeepAliveSettings(t *testing.T, fd fdType, oldCfg, cfg KeepAliveConfig) {
    42  	if cfg.Idle == 0 {
    43  		cfg.Idle = defaultTCPKeepAliveIdle
    44  	}
    45  	if cfg.Interval == 0 {
    46  		cfg.Interval = defaultTCPKeepAliveInterval
    47  	}
    48  	if cfg.Count == 0 {
    49  		cfg.Count = defaultTCPKeepAliveCount
    50  	}
    51  	if cfg.Idle == -1 {
    52  		cfg.Idle = oldCfg.Idle
    53  	}
    54  	if cfg.Interval == -1 {
    55  		cfg.Interval = oldCfg.Interval
    56  	}
    57  	if cfg.Count == -1 {
    58  		cfg.Count = oldCfg.Count
    59  	}
    60  
    61  	tcpKeepAlive, err := syscall.GetsockoptInt(fd, syscall.SOL_SOCKET, syscall.SO_KEEPALIVE)
    62  	if err != nil {
    63  		t.Fatal(err)
    64  	}
    65  	if (tcpKeepAlive != 0) != cfg.Enable {
    66  		t.Fatalf("SO_KEEPALIVE: got %t; want %t", tcpKeepAlive != 0, cfg.Enable)
    67  	}
    68  
    69  	tcpKeepAliveIdle, err := syscall.GetsockoptInt(fd, syscall.IPPROTO_TCP, syscall_TCP_KEEPIDLE)
    70  	if err != nil {
    71  		t.Fatal(err)
    72  	}
    73  	if time.Duration(tcpKeepAliveIdle)*time.Second != cfg.Idle {
    74  		t.Fatalf("TCP_KEEPIDLE: got %ds; want %v", tcpKeepAliveIdle, cfg.Idle)
    75  	}
    76  
    77  	tcpKeepAliveInterval, err := syscall.GetsockoptInt(fd, syscall.IPPROTO_TCP, syscall_TCP_KEEPINTVL)
    78  	if err != nil {
    79  		t.Fatal(err)
    80  	}
    81  	if time.Duration(tcpKeepAliveInterval)*time.Second != cfg.Interval {
    82  		t.Fatalf("TCP_KEEPINTVL: got %ds; want %v", tcpKeepAliveInterval, cfg.Interval)
    83  	}
    84  
    85  	tcpKeepAliveCount, err := syscall.GetsockoptInt(fd, syscall.IPPROTO_TCP, syscall_TCP_KEEPCNT)
    86  	if err != nil {
    87  		t.Fatal(err)
    88  	}
    89  	if tcpKeepAliveCount != cfg.Count {
    90  		t.Fatalf("TCP_KEEPCNT: got %d; want %d", tcpKeepAliveCount, cfg.Count)
    91  	}
    92  }
    93
View as plain text