diff options
author | mb <mb@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2010-10-29 14:53:16 +0000 |
---|---|---|
committer | mb <mb@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2010-10-29 14:53:16 +0000 |
commit | 4af18f43633a19ceb38848901306dcf5f46074d5 (patch) | |
tree | dde30bd45d216d5e2050550799ba9e6f6997aa1d /rules.mk | |
parent | 0ca3c6b768b43104ada4c364efcd540a4176d9a6 (diff) |
Add macro for locking of recipe commands.
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23708 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'rules.mk')
-rw-r--r-- | rules.mk | 10 |
1 files changed, 10 insertions, 0 deletions
@@ -249,6 +249,16 @@ define include_mk $(eval -include $(if $(DUMP),,$(STAGING_DIR)/mk/$(strip $(1)))) endef +# Execute commands under flock +# $(1) => The shell expression. +# $(2) => The lock name. If not given, the global lock will be used. +# $(3) => The filedescriptor used for the lock. Defaults to 1023. +define locked + ( $(STAGING_DIR_HOST)/bin/flock -x $(if $(3),$(3),1023) && \ + $(1) \ + ) $(if $(3),$(strip $(3)),1023)>$(TMP_DIR)/.$(if $(2),$(strip $(2)),global).flock +endef + # file extension ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1))) |