X-Git-Url: https://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=README;h=71eec3530465ebe2093093dce57b4871b0facd66;hp=96389add129001f9e67a15f63ed8368b37f02cc7;hb=cdc45d639bb6c2e6e35fef529b4e9ad9ae83b2b5;hpb=256dd999d11736ebe5ad2865219879199c89cc90 diff --git a/README b/README index 96389ad..71eec35 100644 --- a/README +++ b/README @@ -4,9 +4,16 @@ by Mathieu Desnoyers and Paul E. McKenney BUILDING -------- + ./bootstrap (skip if using tarball) + ./configure make make install - + + Note: Forcing 32-bit build: + * CFLAGS=-m32 ./configure + + Forcing 64-bit build: + * CFLAGS=-m64 ./configure QUICK START GUIDE ----------------- @@ -48,6 +55,17 @@ Usage of liburcu-qsbr the threads are not active. It provides the fastest read-side at the expense of more intrusiveness in the application code. +Usage of liburcu-bp + + * #include + * Link with "-lurcu-bp". + * The BP library flavor stands for "bulletproof". It is specifically + designed to help tracing library to hook on applications without + requiring to modify these applications. urcu_init(), + rcu_register_thread() and rcu_unregister_thread() all become nops. + The state is dealt with by the library internally at the expense of + read-side and write-side performance. + Initialization Each thread that has reader critical sections (that uses @@ -68,6 +86,15 @@ Writing After, synchronize_rcu() must be called. When it returns, the old values are not in usage anymore. +Usage of liburcu-defer + + * #include + * Link with "-lurcu-defer" + * Provides call_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 + it may call synchronize_rcu() if the thread queue is full. + Being careful with signals The liburcu library uses signals internally. The signal handler is