From eda0ed901532ceb55bcf24bbde2c40a0d8759b69 Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Tue, 8 Nov 2011 17:52:44 +0000 Subject: cooker.py: Ensure only one copy of bitbake executes at once The bitbake codebase makes assumptions that only one copy is active against a given build directory at a given time. This patch adds a lockfile in TOPDIR to ensure that is the case. Note that no unlock is needed, that is automatically dropped when execution terminates. (Bitbake rev: 6004cbf36c980c2574c1c9153df81a7c55317e17) Signed-off-by: Richard Purdie --- bitbake/lib/bb/cooker.py | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/bitbake/lib/bb/cooker.py b/bitbake/lib/bb/cooker.py index 9537239b03..4f01cc10c6 100644 --- a/bitbake/lib/bb/cooker.py +++ b/bitbake/lib/bb/cooker.py @@ -138,6 +138,13 @@ class BBCooker: if not self.configuration.cmd: self.configuration.cmd = bb.data.getVar("BB_DEFAULT_TASK", self.configuration.data, True) or "build" + # Take a lock so only one copy of bitbake can run against a given build + # directory at a time + lockfile = bb.data.expand("${TOPDIR}/bitbake.lock", self.configuration.data) + self.lock = bb.utils.lockfile(lockfile, False, False) + if not self.lock: + bb.fatal("Only one copy of bitbake should be run against a build directory") + bbpkgs = bb.data.getVar('BBPKGS', self.configuration.data, True) if bbpkgs and len(self.configuration.pkgs_to_build) == 0: self.configuration.pkgs_to_build.extend(bbpkgs.split()) -- cgit v1.2.3-54-g00ecf