* CFLAGS="-m64 -g -O2" ./configure
Forcing a 32-bit build with 386 backward compatibility:
- * CFLAGS="-m32 -g -O2" ./configure --target=i386-pc-linux-gnu
+ * CFLAGS="-m32 -g -O2" ./configure --host=i386-pc-linux-gnu
+
+ Forcing a 32-bit build for Sparcv9 (typical for Sparc v9)
+ * CFLAGS="-m32 -Wa,-Av9a -g -O2" ./configure
ARCHITECTURES SUPPORTED
-----------------------
-Currently, x86 (i386, i486, i586, i686), x86 64, PowerPC 32/64 and S390 are
-supported. The current use of sys_futex() makes it Linux-dependent, although
-this portability limitation might go away in a near future by using the pthread
-cond vars.
+Currently, x86 (i386, i486, i586, i686), x86 64-bit, PowerPC 32/64, S390, S390x
+and Sparcv9 32/64 are supported. Only tested on Linux so far, but should
+theoretically work on other operating systems.
QUICK START GUIDE
-----------------
Usage of liburcu-defer
* #include <urcu-defer.h>
- * Link with "-lurcu-defer"
- * Provides call_rcu() primitive to enqueue delayed callbacks. Queued
+ * Link with "-lurcu-defer", and also with one of the urcu library
+ (either urcu, urcu-bp, urcu-mb or urcu-qsbr).
+ * Provides defer_rcu() primitive to enqueue delayed callbacks. Queued
callbacks are executed in batch periodically after a grace period.
- Do _not_ use call_rcu() within a read-side critical section, because
+ Do _not_ use defer_rcu() within a read-side critical section, because
it may call synchronize_rcu() if the thread queue is full.
+ * Provides defer_rcu_ratelimit() primitive, which acts just like
+ defer_rcu(), but takes an additional rate limiter callback forcing
+ synchronized callback execution of the limiter returns non-zero.
+ * Requires that rcu_defer_barrier() must be called in library destructor
+ if a library queues callbacks and is expected to be unloaded with
+ dlclose().
+ * Its API is currently experimental. It may change in future library
+ releases.
Being careful with signals