3 ms·

How is web assembly going to help with multithreading?

• pg_is_a_butt 10y ago
  by assembling them, duh. you're all idiots.
• voxic11 10y ago
  It's one of the primary goals of the project > Provide low-level buildings blocks for pthreads-style shared memory: shared memory between threads, atomics and futexes (or synchronic). New atomic memory operators, including loads/stores annotated with their atomic ordering property, will follow the C++11 memory model, similarly to the PNaCl atomic support and the SharedArrayBuffer proposal. Regular loads and stores will be bound by a happens-before relationship to atomic operators in the same thread of execution, which themselves synchronize-with atomics in other threads. Following these rules, regular load/store operators can still be elided, duplicated, and split up. This guarantees that data-race free code executes as if it were sequentially consistent. Even when there are data races, WebAssembly will ensure that the nondeterminism remains limited and local.