Rewrite exec pipe, TCP and HTTP sources

internal/exec/pipe.go

@@ -0,0 +1,26 @@
+package exec
+
+import (
+	"github.com/AlexxIT/go2rtc/pkg/core"
+	"io"
+	"os/exec"
+)
+
+// PipeCloser - return StdoutPipe that Kill cmd on Close call
+func PipeCloser(cmd *exec.Cmd) (io.ReadCloser, error) {
+	stdout, err := cmd.StdoutPipe()
+	if err != nil {
+		return nil, err
+	}
+
+	return pipeCloser{stdout, cmd}, nil
+}
+
+type pipeCloser struct {
+	io.ReadCloser
+	cmd *exec.Cmd
+}
+
+func (p pipeCloser) Close() error {
+	return core.Any(p.ReadCloser.Close(), p.cmd.Process.Kill(), p.cmd.Wait())
+}