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2011-07-21 Userspace RCU 0.6.4
* uatomic: Fix ARM build errors in uatomic. * urcu tests: hold mutex across use of custom allocator. * Portability fixes to support FreeBSD 8.2. 2011-06-27 Userspace RCU 0.6.3 * uatomic: Fix i386 compatibility build errors in uatomic. 2011-06-13 Userspace RCU 0.6.2 * Fix build on powerpc. 2011-06-13 Userspace RCU 0.6.1 * Add missing headers into release tarball: urcu-call-rcu-impl.h and urcu-defer-impl.h 2011-06-10 Userspace RCU 0.6.0 * Added call_rcu() support, graciously contributed by Paul E. McKenney. * Added urcu/cds.h and merged all "Concurrent Data Containers" (CDS) into a single .so: liburcu-cds.so to have a single header/shared object holding all concurrency-aware data containers. It provides support for RCU lists, queues and stacks at the moment. * liburcu 0.6.0 now allows linking a single application with multiple flavors of RCU. This required a library API change which is incompatible with older 0.5.x liburcu. The .so version number is therefore bumped from 0 to 1 (e.g. liburcu.so.1). * Added "atfork" handling API, documented in README. Only useful for processes using fork() without following exec(). * Renaming the following files, keeping the old files (producing a compiler warning): urcu/uatomic_arch.h -> urcu/uatomic.h urcu/urcu-futex.h -> urcu/futex.h urcu/urcu_ref.h -> urcu/ref.h 2011-03-04 Userspace RCU 0.5.4 * urcu-bp: Update fork() handling Introduce extern void rcu_bp_before_fork(void); extern void rcu_bp_after_fork_parent(void); extern void rcu_bp_after_fork_child(void); to handle fork gracefully. These disable signals and hold the registry mutex across forks. (this flavor of the liburcu library ("bp" for "bulletproof") is mainly used by UST, the user-space tracer). 2011-03-03 Userspace RCU 0.5.3 * Add support for older ARM single-CPU architecturess (pre-ARMv7) (thanks to Jason Wessel from WindRiver). * Fix ARMv7 cmm_rmb/cmm_wmb primitives (use a dmb barrier). * Remove leftover list_t type from urcu/list.h (namespace cleanup). * urcu_defer: handle malloc error value. * Update README file to describe urcu interaction with fork() when not * followed by an exec() system call. 2010-11-18 Userspace RCU 0.5.2 * Fix renaming error introduced in 0.5.0. 2010-11-18 Userspace RCU 0.5.1 * Fix renaming error introduced in 0.5.0. (incomplete fix) 2010-11-18 Userspace RCU 0.5.0 * Version 0.5.0 changes the API presented by memory model, architecture abstraction and data structure primitives in headers. The prefixes are, respectively: - cmm_ : Concurrent Memory Model - caa_ : Concurrent Architecture Abstraction - cds_ : Concurrent Data Structures 2010-03-04 Userspace RCU 0.4.2 * Add generic uatomic ops support. * Bugfix in urcu-bp. (rare garbage collection bug occurring in multithreaded environment). Only affects urcu-bp users (UST). 2010-02-12 Userspace RCU 0.4.1 * s390: compilation fix. 2010-01-30 Userspace RCU 0.4.0 * API change: SIGURCU -> SIGRCU * API changes: standardize on rcu_ prefix. * API change: urcu_init -> rcu_init. * urcu/config.h options renamed to CONFIG_RCU_HAVE_FENCE, CONFIG_RCU_HAVE_FUTEX, CONFIG_RCU_SMP, CONFIG_RCU_COMPAT_ARCH. ((moving from URCU -> RCU). * library names changes: liburcu becomes the "default" version, using sys_membarrier() when available, and using liburcu-mb as a fallback. * The signal-based liburcu is renamed from liburcu to liburcu-signal. People previously using the signal-based "liburcu" will automatically be moved to the "default" liburcu version. 2009-11-16 Userspace RCU 0.3.1 * Add support for sparcv9 32-bit build. * Update build system to use --host instead of --target. 2009-11-03 Userspace RCU 0.3.0 * API change for the "deferred work" interface. 2009-10-14 Userspace RCU 0.2.3 * Move to autotools. * Automated architecture detection, with i386 fallback. * Detect if NR_futex is on the system, fallback on portable alternatives. * Add configure mode for UP-only systems. 2009-10-02 Userspace RCU 0.2.2 * Phases out rcu_publish_content() api. * Adds type checking to urcu-pointer.h pointer exchange primitives. 2009-10-02 Userspace RCU 0.2.1 * small header dependency fix for rculist.h. * new "liburcu-bp.so" : "Bulletproof RCU", made especially for the UST userspace tracer. It's a library that sacrifices a bit of read-side performance for automatically monitoring thread creation/removal. See README for details. 2009-10-01 Userspace RCU 0.2 * Clarify usage of rcu_cmpxchg_pointer, rcu_xchg_pointer, rcu_set_pointer. 2009-09-29 Userspace RCU 0.1 * Initial release. |