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4dce0e1246
not yet tagged, but used by github.com/Microsoft/hcsshim v0.15 Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
67 lines
2.1 KiB
Go
67 lines
2.1 KiB
Go
//go:build windows && (386 || arm)
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package etw
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import (
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"github.com/Microsoft/go-winio/pkg/guid"
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"golang.org/x/sys/windows"
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)
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func low(v providerHandle) uint32 {
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return uint32(v & 0xffffffff)
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}
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func high(v providerHandle) uint32 {
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return low(v >> 32)
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}
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func eventUnregister(providerHandle providerHandle) (win32err error) {
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return eventUnregister_32(low(providerHandle), high(providerHandle))
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}
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func eventWriteTransfer(
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providerHandle providerHandle,
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descriptor *eventDescriptor,
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activityID *windows.GUID,
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relatedActivityID *windows.GUID,
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dataDescriptorCount uint32,
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dataDescriptors *eventDataDescriptor) (win32err error) {
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return eventWriteTransfer_32(
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low(providerHandle),
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high(providerHandle),
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descriptor,
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activityID,
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relatedActivityID,
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dataDescriptorCount,
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dataDescriptors)
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}
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func eventSetInformation(
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providerHandle providerHandle,
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class eventInfoClass,
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information uintptr,
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length uint32) (win32err error) {
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return eventSetInformation_32(
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low(providerHandle),
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high(providerHandle),
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class,
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information,
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length)
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}
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// providerCallbackAdapter acts as the first-level callback from the C/ETW side
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// for provider notifications. Because Go has trouble with callback arguments of
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// different size, it has only pointer-sized arguments, which are then cast to
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// the appropriate types when calling providerCallback.
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// For x86, the matchAny and matchAll keywords need to be assembled from two
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// 32-bit integers, because the max size of an argument is uintptr, but those
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// two arguments are actually 64-bit integers.
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func providerCallbackAdapter(sourceID *guid.GUID, state uint32, level uint32, matchAnyKeyword_low uint32, matchAnyKeyword_high uint32, matchAllKeyword_low uint32, matchAllKeyword_high uint32, filterData uintptr, i uintptr) uintptr {
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matchAnyKeyword := uint64(matchAnyKeyword_high)<<32 | uint64(matchAnyKeyword_low)
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matchAllKeyword := uint64(matchAllKeyword_high)<<32 | uint64(matchAllKeyword_low)
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providerCallback(*sourceID, ProviderState(state), Level(level), uint64(matchAnyKeyword), uint64(matchAllKeyword), filterData, i)
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return 0
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}
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