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| 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 | e396e33ad2ea10633c42ec4c580770cb92148dbc (patch) | |
| tree | 43ff01a513bf88aad7fff3dfd7f4b3e1edd7029f /rules.mk | |
| parent | 731877c5d95f0caefdd1484fe983083131f8eff2 (diff) | |
| download | upstream-e396e33ad2ea10633c42ec4c580770cb92148dbc.tar.gz upstream-e396e33ad2ea10633c42ec4c580770cb92148dbc.tar.bz2 upstream-e396e33ad2ea10633c42ec4c580770cb92148dbc.zip | |
Add macro for locking of recipe commands.
SVN-Revision: 23708
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))) |