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-rw-r--r--libbuild2/test/rule.cxx34
1 files changed, 29 insertions, 5 deletions
diff --git a/libbuild2/test/rule.cxx b/libbuild2/test/rule.cxx
index 5cdd8fb..5992414 100644
--- a/libbuild2/test/rule.cxx
+++ b/libbuild2/test/rule.cxx
@@ -958,13 +958,37 @@ namespace build2
process p;
{
- process::pipe ep (pp.dbuf.open (args[0],
- pp.force_dbuf,
- fdstream_mode::non_blocking));
+ process::pipe ep;
+ {
+ fdpipe p;
+ if (diag_buffer::pipe (t.ctx, pp.force_dbuf) == -1) // Buffering?
+ {
+ try
+ {
+ p = fdopen_pipe ();
+ }
+ catch (const io_error& e)
+ {
+ fail << "unable to redirect stderr: " << e;
+ }
+
+ // Note that we must return non-owning fd to our end of the pipe
+ // (see the process class for details).
+ //
+ ep = process::pipe (p.in.get (), move (p.out));
+ }
+ else
+ ep = process::pipe (-1, 2);
+
+ // Note that we must open the diag buffer regardless of the
+ // diag_buffer::pipe() result.
+ //
+ pp.dbuf.open (args[0], move (p.in), fdstream_mode::non_blocking);
+ }
p = (prev == nullptr
- ? process (args, 0, out, ep.out) // First process.
- : process (args, *prev->proc, out, ep.out)); // Next process.
+ ? process (args, 0, out, move (ep)) // First process.
+ : process (args, *prev->proc, out, move (ep))); // Next process.
}
pp.proc = &p;