From 29770a9d660f28522a7ef69e60d1ab827781ef2e Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Mon, 19 Oct 2020 10:46:24 +0200
Subject: Reimplement worker result manifest upload via temporary file

This is part of the ongoing work to get rid of the intermittent broken pipe
errors.
---
 bbot/worker/worker.cxx | 32 ++++++++++++++++++++++++++++++--
 1 file changed, 30 insertions(+), 2 deletions(-)

diff --git a/bbot/worker/worker.cxx b/bbot/worker/worker.cxx
index 2ad8947..5979ec6 100644
--- a/bbot/worker/worker.cxx
+++ b/bbot/worker/worker.cxx
@@ -353,10 +353,11 @@ static void
 upload_manifest (tracer& trace,
                  const string& url,
                  const T& m,
-                 const char* what)
+                 const string& what)
 {
   try
   {
+#if 0
     tftp_curl c (trace,
                  path ("-"),
                  nullfd,
@@ -367,8 +368,35 @@ upload_manifest (tracer& trace,
 
     manifest_serializer s (c.out, url);
     m.serialize (s);
-
     c.out.close ();
+#else
+    auto_rmfile tmp;
+    try
+    {
+      tmp = auto_rmfile (path::temp_path (what + "-manifest"));
+      ofdstream ofs (tmp.path);
+      manifest_serializer s (ofs, tmp.path.string ());
+      m.serialize (s);
+      ofs.close ();
+    }
+    catch (const io_error& e) // In case not derived from system_error.
+    {
+      fail << "unable to save " << what << " manifest: " << e;
+    }
+    catch (const system_error& e)
+    {
+      fail << "unable to save " << what << " manifest: " << e;
+    }
+
+    tftp_curl c (trace,
+                 tmp.path,
+                 nullfd,
+                 curl::put,
+                 url,
+                 "--tftp-blksize", tftp_blksize,
+                 "--max-time", tftp_put_timeout);
+#endif
+
     if (!c.wait ())
       throw_generic_ios_failure (EIO, "non-zero curl exit code");
   }
-- 
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