From 3a3660bb2b88b1f7f7820fc179942221d3a72bb4 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 22 Oct 2021 09:53:04 +0200
Subject: Add delay between bpkg-pkg-build and bpkg-update on Windows

---
 bbot/worker/worker.cxx | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/bbot/worker/worker.cxx b/bbot/worker/worker.cxx
index 8994e3f..8e4ec3a 100644
--- a/bbot/worker/worker.cxx
+++ b/bbot/worker/worker.cxx
@@ -4,7 +4,7 @@
 #ifndef _WIN32
 #  include <signal.h> // signal()
 #else
-#  include <libbutl/win32-utility.hxx>
+#  include <libbutl/win32-utility.hxx> // SetErrorMode(), Sleep()
 #endif
 
 #include <map>
@@ -2206,6 +2206,16 @@ build (size_t argc, const char* argv[])
       rm.status |= r.status;
     }
 
+#ifdef _WIN32
+    // Give Windows a chance to (presumably) scan any files we may have just
+    // unpacked. Failed that, if we try to overwrite any such file (e.g., a
+    // generated header) we may end up with a permission denied error. Note
+    // also that this is in addition to the 2 seconds retry we have in our
+    // fdopen() implementation, which is not always enough.
+    //
+    Sleep (5000);
+#endif
+
     // Update the main package.
     //
     {
@@ -3091,6 +3101,10 @@ build (size_t argc, const char* argv[])
             break;
         }
 
+#ifdef _WIN32
+        Sleep (5000); // See above.
+#endif
+
         // Run external runtime tests.
         //
         if (has_runtime_tests)
-- 
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