diff options
Diffstat (limited to 'src/runtime/testdata/testprog/syscall_windows.go')
-rw-r--r-- | src/runtime/testdata/testprog/syscall_windows.go | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/src/runtime/testdata/testprog/syscall_windows.go b/src/runtime/testdata/testprog/syscall_windows.go new file mode 100644 index 0000000..b4b6644 --- /dev/null +++ b/src/runtime/testdata/testprog/syscall_windows.go @@ -0,0 +1,70 @@ +// Copyright 2015 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package main + +import ( + "internal/syscall/windows" + "runtime" + "sync" + "syscall" + "unsafe" +) + +func init() { + register("RaiseException", RaiseException) + register("ZeroDivisionException", ZeroDivisionException) + register("StackMemory", StackMemory) +} + +func RaiseException() { + const EXCEPTION_NONCONTINUABLE = 1 + mod := syscall.MustLoadDLL("kernel32.dll") + proc := mod.MustFindProc("RaiseException") + proc.Call(0xbad, EXCEPTION_NONCONTINUABLE, 0, 0) + println("RaiseException should not return") +} + +func ZeroDivisionException() { + x := 1 + y := 0 + z := x / y + println(z) +} + +func getPagefileUsage() (uintptr, error) { + p, err := syscall.GetCurrentProcess() + if err != nil { + return 0, err + } + var m windows.PROCESS_MEMORY_COUNTERS + err = windows.GetProcessMemoryInfo(p, &m, uint32(unsafe.Sizeof(m))) + if err != nil { + return 0, err + } + return m.PagefileUsage, nil +} + +func StackMemory() { + mem1, err := getPagefileUsage() + if err != nil { + panic(err) + } + const threadCount = 100 + var wg sync.WaitGroup + for i := 0; i < threadCount; i++ { + wg.Add(1) + go func() { + runtime.LockOSThread() + wg.Done() + select {} + }() + } + wg.Wait() + mem2, err := getPagefileUsage() + if err != nil { + panic(err) + } + print((mem2 - mem1) / threadCount) +} |