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tcp: relax metrics collectos on error (#2041)

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This commit is contained in:
Jan-Otto Kröpke
2025-05-20 15:37:01 +02:00
committed by GitHub
parent 898e16bcb1
commit 068bcb7237
3 changed files with 110 additions and 84 deletions
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14
internal/headers/iphlpapi/iphlpapi.go
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@@ -41,7 +41,7 @@ func GetTCPConnectionStates(family uint32) (map[MIB_TCP_STATE]uint32, error) {
case windows.AF_INET:
table, err := getExtendedTcpTable[MIB_TCPROW_OWNER_PID](family, TCPTableOwnerPIDAll)
if err != nil {
return nil, err
return nil, fmt.Errorf("failed getExtendedTcpTable: %w", err)
}
for _, row := range table {
@@ -52,7 +52,7 @@ func GetTCPConnectionStates(family uint32) (map[MIB_TCP_STATE]uint32, error) {
case windows.AF_INET6:
table, err := getExtendedTcpTable[MIB_TCP6ROW_OWNER_PID](family, TCPTableOwnerPIDAll)
if err != nil {
return nil, err
return nil, fmt.Errorf("failed getExtendedTcpTable: %w", err)
}
for _, row := range table {
@@ -102,12 +102,12 @@ func getExtendedTcpTable[T any](ulAf uint32, tableClass uint32) ([]T, error) {
var size uint32
ret, _, _ := procGetExtendedTcpTable.Call(
uintptr(0),
0,
uintptr(unsafe.Pointer(&size)),
uintptr(0),
0,
uintptr(ulAf),
uintptr(tableClass),
uintptr(0),
0,
)
if ret != uintptr(windows.ERROR_INSUFFICIENT_BUFFER) {
@@ -119,10 +119,10 @@ func getExtendedTcpTable[T any](ulAf uint32, tableClass uint32) ([]T, error) {
ret, _, _ = procGetExtendedTcpTable.Call(
uintptr(unsafe.Pointer(&buf[0])),
uintptr(unsafe.Pointer(&size)),
uintptr(0),
0,
uintptr(ulAf),
uintptr(tableClass),
uintptr(0),
0,
)
if ret != 0 {