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Diffstat (limited to 'doc/README.txt')
| -rw-r--r-- | doc/README.txt | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/doc/README.txt b/doc/README.txt index cf98bbf..5902e4f 100644 --- a/doc/README.txt +++ b/doc/README.txt @@ -25,9 +25,9 @@ by synthesis). This is an attempt to replace various existing files with similar goals, since they usually do not handle differences in memory barrier styles with sufficient generality. -If this is included after defining AO_REQUIRE_CAS, then the package -will make an attempt to emulate compare-and-swap in a way that (at least -on Linux) should still be async-signal-safe. As a result, most other +If this is included after defining AO_REQUIRE_CAS, then the package makes +an attempt to emulate AO_compare_and_swap* (single-width) in a way that (at +least on Linux) should still be async-signal-safe. As a result, most other atomic operations will then be defined using the compare-and-swap emulation. This emulation is slow, since it needs to disable signals. And it needs to block in case of contention. If you care about performance |