2016-03-09 13:37, Harry van Haaren: > This patch adds a new function to the EAL API: > int rte_eal_primary_proc_alive(const char *path); > > The function indicates if a primary process is alive right now. > This functionality is implemented by testing for a write- > lock on the config file, and the function tests for a lock. > > The use case for this functionality is that a secondary > process can wait until a primary process starts by polling > the function and waiting. When the primary is running, the > secondary continues to poll to detect if the primary process > has quit unexpectedly, the secondary process can detect this. > > Signed-off-by: Harry van Haaren <harry.van.haaren at intel.com> > Acked-by: Maryam Tahhan <maryam.tahhan at intel.com> > --- > doc/guides/rel_notes/release_16_04.rst | 8 ++++ > lib/librte_eal/bsdapp/eal/Makefile | 1 + > lib/librte_eal/bsdapp/eal/rte_eal_version.map | 1 + > lib/librte_eal/common/eal_common_proc.c | 61 > +++++++++++++++++++++++++ > lib/librte_eal/common/include/rte_eal.h | 20 +++++++- > lib/librte_eal/linuxapp/eal/Makefile | 3 +- > lib/librte_eal/linuxapp/eal/rte_eal_version.map | 1 + > 7 files changed, 93 insertions(+), 2 deletions(-) > create mode 100644 lib/librte_eal/common/eal_common_proc.c > > diff --git a/doc/guides/rel_notes/release_16_04.rst > b/doc/guides/rel_notes/release_16_04.rst > index 24f15bf..7d5000f 100644 > --- a/doc/guides/rel_notes/release_16_04.rst > +++ b/doc/guides/rel_notes/release_16_04.rst > @@ -74,6 +74,14 @@ EAL > ~~~ > > > +* **Added rte_eal_primary_proc_alive() function** > + > + A new function ``rte_eal_primary_proc_alive()`` has been added > + to allow the user to detect if a primary process is running. > + Use cases for this feature include fault detection, and monitoring > + using secondary processes.
It is not in the right section (fixed issues). Moved and reworded before applying: * **Added function to check primary process state.**
