FreeBSD Manual Pages
NAME ck_pr_fence_store_load -- enforce ordering of store operations to load operations LIBRARY Concurrency Kit (libck, -lck) SYNOPSIS #include <ck_pr.h> void ck_pr_fence_store_load(void); void ck_pr_fence_strict_store_load(void); DESCRIPTION The ck_pr_fence_store_load() function enforces the ordering of any mem- ory store, ck_pr_store() and atomic read-modify-write operations to load operations relative to the invocation of the function. This func- tion always serve as an implicit compiler barrier. A fence will cur- rently always be emitted for this operation, including for TSO memory model targets. EXAMPLE #include <ck_pr.h> static int a = 0; static int b = 0; void function(void) { unsigned int snapshot_b; ck_pr_store_int(&a, 1); /* * Guarantee that the store to a is completed * with respect to load from b. */ ck_pr_fence_store_load(); snapshot_b = ck_pr_load_int(&b, 2); return; } RETURN VALUES This function has no return value. SEE ALSO ck_pr_stall(3), ck_pr_fence_atomic(3), ck_pr_fence_atomic_store(3), ck_pr_fence_atomic_load(3), ck_pr_fence_load(3), ck_pr_fence_load_atomic(3), ck_pr_fence_load_store(3), ck_pr_fence_load_depends(3), ck_pr_fence_store(3), ck_pr_fence_store_atomic(3), ck_pr_fence_memory(3), ck_pr_barrier(3), ck_pr_fas(3), ck_pr_load(3), ck_pr_store(3), ck_pr_faa(3), ck_pr_inc(3), ck_pr_dec(3), ck_pr_neg(3), ck_pr_not(3), ck_pr_add(3), ck_pr_sub(3), ck_pr_and(3), ck_pr_or(3), ck_pr_xor(3), ck_pr_cas(3), ck_pr_btc(3), ck_pr_bts(3), ck_pr_btr(3) Additional information available at http://concurrencykit.org/ May 18, 2013 CK_PR_FENCE_STORE_LOAD(3)
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | EXAMPLE | RETURN VALUES | SEE ALSO
Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=ck_pr_fence_store_load&sektion=3&manpath=FreeBSD+Ports+14.3.quarterly>