Fix missing vendor dir

vendor/github.com/tklauser/numcpus/numcpus_solaris.go

@@ -0,0 +1,55 @@
+// Copyright 2021 Tobias Klauser
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//go:build solaris
+
+package numcpus
+
+import "golang.org/x/sys/unix"
+
+// taken from /usr/include/sys/unistd.h
+const (
+	_SC_NPROCESSORS_CONF = 14
+	_SC_NPROCESSORS_ONLN = 15
+	_SC_NPROCESSORS_MAX  = 516
+)
+
+func getConfigured() (int, error) {
+	n, err := unix.Sysconf(_SC_NPROCESSORS_CONF)
+	return int(n), err
+}
+
+func getKernelMax() (int, error) {
+	n, err := unix.Sysconf(_SC_NPROCESSORS_MAX)
+	return int(n), err
+}
+
+func getOffline() (int, error) {
+	return 0, ErrNotSupported
+}
+
+func getOnline() (int, error) {
+	n, err := unix.Sysconf(_SC_NPROCESSORS_ONLN)
+	return int(n), err
+}
+
+func getPossible() (int, error) {
+	n, err := unix.Sysconf(_SC_NPROCESSORS_CONF)
+	return int(n), err
+}
+
+func getPresent() (int, error) {
+	n, err := unix.Sysconf(_SC_NPROCESSORS_CONF)
+	return int(n), err
+}