From 05f235ad8f0a80fc556bba315e8fad0db7af3fcb Mon Sep 17 00:00:00 2001
From: Gordon Hecker <gh@emlix.com>
Date: Wed, 30 Sep 2009 16:10:15 +0200
Subject: [PATCH] lock chroot

Signed-off-by: Gordon Hecker <gh@emlix.com>
---
 local/e2build.lua | 27 +++++++++++++++++++++++++++
 local/policy.lua  |  2 ++
 2 files changed, 29 insertions(+)

diff --git a/local/e2build.lua b/local/e2build.lua
index f3dbc50..b8034a0 100644
--- a/local/e2build.lua
+++ b/local/e2build.lua
@@ -173,6 +173,7 @@ function e2build.build_config(info, r)
   tab.base = string.format("%s/%s/%s", tmpdir, project, r)
   tab.c = string.format("%s/chroot", tab.base)
   tab.chroot_marker = string.format("%s/e2factory-chroot", tab.base)
+  tab.chroot_lock = string.format("%s/e2factory-chroot-lock", tab.base)
   tab.T = string.format("%s/%s/%s/chroot/%s", tmpdir, project, r, builddir)
   tab.Tc = string.format("/%s", builddir)
   tab.r = string.format("%s", r)
@@ -207,6 +208,32 @@ function e2build.build_config(info, r)
   return tab
 end
 
+function e2build.chroot_lock(info, r, return_flags)
+  local res = info.results[r]
+  local rc, re
+  local e = new_error("error locking chroot")
+  rc, re = e2lib.mkdir(res.build_config.c, "-p")
+  if not rc then
+    return false, e:cat(re)
+  end
+  rc, re = e2lib.lock:lock(res.build_config.chroot_lock)
+  if not rc then
+    return false, e:cat(re)
+  end
+  return true, nil
+end
+
+function e2build.chroot_unlock(info, r, return_flags)
+  local res = info.results[r]
+  local rc, re
+  local e = new_error("error unlocking chroot")
+  rc, re = e2lib.lock:unlock(res.build_config.chroot_lock)
+  if not rc then
+    return false, e:cat(re)
+  end
+  return true, nil
+end
+
 function e2build.setup_chroot(info, r, return_flags)
   local res = info.results[r]
   local rc, re
diff --git a/local/policy.lua b/local/policy.lua
index 3cd351c..9e900a0 100644
--- a/local/policy.lua
+++ b/local/policy.lua
@@ -222,6 +222,7 @@ local default_build_process = {
 	"build_config",
 	"result_available",
 	"remove_logfile",
+	"chroot_lock",
 	"chroot_cleanup_if_exists",
 	"setup_chroot",
 	"sources",
@@ -233,6 +234,7 @@ local default_build_process = {
 	"store_result",
 	"linklast",
 	"chroot_cleanup",
+	"chroot_unlock",
 }
 
 policy = {}
-- 
2.39.5