From f3f88c6a3695755aafa3765219fa323fe46679d6 Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Sun, 15 May 2011 01:03:14 -0700
Subject: [PATCH] EbuildPhase: AsynchronousLock for ebuild-locks

---
 pym/_emerge/EbuildPhase.py | 30 +++++++++++++++++++++---------
 1 file changed, 21 insertions(+), 9 deletions(-)

diff --git a/pym/_emerge/EbuildPhase.py b/pym/_emerge/EbuildPhase.py
index ff76fc641..0b4afe7e8 100644
--- a/pym/_emerge/EbuildPhase.py
+++ b/pym/_emerge/EbuildPhase.py
@@ -5,13 +5,12 @@ import gzip
 import sys
 import tempfile
 
+from _emerge.AsynchronousLock import AsynchronousLock
 from _emerge.BinpkgEnvExtractor import BinpkgEnvExtractor
 from _emerge.MiscFunctionsProcess import MiscFunctionsProcess
 from _emerge.EbuildProcess import EbuildProcess
 from _emerge.CompositeTask import CompositeTask
 from portage.util import writemsg
-from portage.locks import lockdir
-from portage.locks import unlockdir
 from portage.xml.metadata import MetaDataXML
 import portage
 portage.proxy.lazyimport.lazyimport(globals(),
@@ -121,6 +120,25 @@ class EbuildPhase(CompositeTask):
 			self.wait()
 			return
 
+		self._start_lock()
+
+	def _start_lock(self):
+		if (self.phase in self._locked_phases and
+			"ebuild-locks" in self.settings.features):
+			eroot = self.settings["EROOT"]
+			lock_path = os.path.join(eroot, portage.VDB_PATH + "-ebuild")
+			if os.access(os.path.dirname(lock_path), os.W_OK):
+				self._ebuild_lock = AsynchronousLock(path=lock_path,
+					scheduler=self.scheduler)
+				self._start_task(self._ebuild_lock, self._lock_exit)
+				return
+
+		self._start_ebuild()
+
+	def _lock_exit(self, ebuild_lock):
+		if self._default_exit(ebuild_lock) != os.EX_OK:
+			self.wait()
+			return
 		self._start_ebuild()
 
 	def _start_ebuild(self):
@@ -144,18 +162,12 @@ class EbuildPhase(CompositeTask):
 			phase=self.phase, scheduler=self.scheduler,
 			settings=self.settings)
 
-		if (self.phase in self._locked_phases and
-			"ebuild-locks" in self.settings.features):
-			eroot = self.settings["EROOT"]
-			lock_path = os.path.join(eroot, portage.VDB_PATH + "-ebuild")
-			if os.access(os.path.dirname(lock_path), os.W_OK):
-				self._ebuild_lock = lockdir(lock_path)
 		self._start_task(ebuild_process, self._ebuild_exit)
 
 	def _ebuild_exit(self, ebuild_process):
 
 		if self._ebuild_lock is not None:
-			unlockdir(self._ebuild_lock)
+			self._ebuild_lock.unlock()
 			self._ebuild_lock = None
 
 		fail = False
-- 
2.26.2