diff options
| author | Michael Büsch <mb@bu3sch.de> | 2010-10-29 14:53:16 +0000 |
|---|---|---|
| committer | Michael Büsch <mb@bu3sch.de> | 2010-10-29 14:53:16 +0000 |
| commit | 8db77876decb83915157d510edab03d57c75b70f (patch) | |
| tree | dde30bd45d216d5e2050550799ba9e6f6997aa1d /rules.mk | |
| parent | d582572b08406e6db759a661b1be079a688c985b (diff) | |
| download | master-187ad058-8db77876decb83915157d510edab03d57c75b70f.tar.gz master-187ad058-8db77876decb83915157d510edab03d57c75b70f.tar.bz2 master-187ad058-8db77876decb83915157d510edab03d57c75b70f.zip | |
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))) |