39 lines
679 B
Go
39 lines
679 B
Go
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package mutex
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/*
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#include <windows.h>
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#include "../hwisenssm2.h"
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*/
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import "C"
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import (
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"fmt"
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"sync"
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"unsafe"
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"github.com/shayne/hwinfo-streamdeck/internal/hwinfo/util"
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)
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var ghnd C.HANDLE
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var imut = sync.Mutex{}
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// Lock the global mutex
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func Lock() error {
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imut.Lock()
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lpName := C.CString(C.HWiNFO_SENSORS_SM2_MUTEX)
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defer C.free(unsafe.Pointer(lpName))
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ghnd = C.OpenMutex(C.READ_CONTROL, C.FALSE, lpName)
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if ghnd == C.HANDLE(C.NULL) {
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errstr := util.HandleLastError(uint64(C.GetLastError()))
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return fmt.Errorf("failed to lock global mutex: %w", errstr)
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}
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return nil
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}
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// Unlock the global mutex
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func Unlock() {
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defer imut.Unlock()
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C.CloseHandle(ghnd)
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}
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