Messages in this thread | | | Date | Fri, 15 Jan 2010 12:23:35 -0500 | From | Mathieu Desnoyers <> | Subject | Userspace RCU API (minor changes) |
| |
Hi,
I'd like to proceed to a minor API change in the next userspace RCU release: moving from SIGURCU to SIGRCU for the signal name. This is part of an effort to standardize the library prefix to "rcu_". I plan to add support for backward compatibility, so when we see that SIGURCU is defined, then we use that value.
Also, I am planning to rename the urcu_init() constructor to rcu_init(). It should only affect the libust tracer, which need to call it explicitly. Normal users don't have to bother with it, as it's a library constructor.
Also, the urcu/config.h options are renamed to:
CONFIG_RCU_HAVE_FENCE CONFIG_RCU_HAVE_FUTEX CONFIG_RCU_SMP CONFIG_RCU_COMPAT_ARCH (moving from URCU -> RCU)
So an updated system installation will keep everything in sync.
I also plan to shuffle the library names a bit, but without breaking anything. Basically, liburcu will become the "default" version, using sys_membarrier() when available, and using liburcu-mb as a fallback.
The signal-based liburcu will be renamed from liburcu to liburcu-signal. People previously using the signal-based "liburcu" will automatically be moved to the "default" liburcu version.
You might want to have a look at the current git tree head to see if everything is fine before the release. Given that I change the API slightly, this will definitely be a 0.4.0.
Feedback is welcome,
Thanks,
Mathieu
-- Mathieu Desnoyers OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
| |