acb2964d65
Some minor improvements, but biggest for here is ErrPipeListenerClosed is no longer an errors.New where the string matches the text of the now exported net.ErrClosed in the stdlib, but is just assigned to net.ErrClosed directly. This should allow us to get rid of the string check for "use of closed network connection" here now.. Signed-off-by: Daniel Canter <dcanter@microsoft.com>
69 lines
2.1 KiB
Go
69 lines
2.1 KiB
Go
//go:build windows && (386 || arm)
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// +build windows
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// +build 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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