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Support simple asynchronous operations #3

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merged 14 commits into from
Jun 17, 2022
Merged

Support simple asynchronous operations #3

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5569911
basic async support
toyobayashi Jun 16, 2022
6cbcebb
ci emscripten version
toyobayashi Jun 16, 2022
d6dad6c
test loop async
toyobayashi Jun 16, 2022
a174505
remove console.log
toyobayashi Jun 16, 2022
32d3db2
test -sNODEJS_CATCH_EXIT=0
toyobayashi Jun 17, 2022
9a6edc8
support pthread pool size is 0
toyobayashi Jun 17, 2022
419d4eb
remove work status
toyobayashi Jun 17, 2022
c7fef7a
determine work is in queue
toyobayashi Jun 17, 2022
cab481e
make C++ AsyncWorker class available
toyobayashi Jun 17, 2022
fe1985f
cleanup code
toyobayashi Jun 17, 2022
60d45eb
readme
toyobayashi Jun 17, 2022
b9ba92d
test async in browser
toyobayashi Jun 17, 2022
b4ccce2
invoke complete in setTimeout if work is canceled
toyobayashi Jun 17, 2022
5cc977a
add listener only once for every worker
toyobayashi Jun 17, 2022
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support pthread pool size is 0
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@toyobayashi
toyobayashi committed Jun 17, 2022
commit 9a6edc8c3ed9f72b380222efeeda1d663753acd2
12 changes: 9 additions & 3 deletions packages/emnapi/src/emnapi.c
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Original file line number Diff line number Diff line change
Expand Up @@ -133,11 +133,16 @@ struct napi_async_work__ {
pthread_t tid;
};

typedef struct worker_count {
int unused;
int running;
} worker_count;

// extern void _emnapi_create_async_work_js(napi_async_work work);
extern void _emnapi_delete_async_work_js(napi_async_work work);
extern void _emnapi_queue_async_work_js(napi_async_work work);
extern void _emnapi_on_execute_async_work_js(napi_async_work work);
extern int _emnapi_get_unused_worker_size();
extern int _emnapi_get_worker_count(worker_count* count);

napi_async_work _emnapi_async_work_init(
napi_env env,
Expand Down Expand Up @@ -219,8 +224,9 @@ napi_status napi_queue_async_work(napi_env env, napi_async_work work) {
CHECK_ENV(env);
CHECK_ARG(env, work);

int unused_worker_size = _emnapi_get_unused_worker_size();
if (unused_worker_size > 0) {
worker_count count;
_emnapi_get_worker_count(&count);
if (count.unused > 0 || count.running == 0) {
_emnapi_execute_async_work(work);
} else {
_emnapi_queue_async_work_js(work); // queue work
Expand Down
8 changes: 5 additions & 3 deletions packages/emnapi/src/simple-async-operation.ts
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Expand Up @@ -18,9 +18,11 @@ mergeInto(LibraryManager.library, {
'return r;' +
'};',

_emnapi_get_unused_worker_size__deps: ['$PThread'],
_emnapi_get_unused_worker_size: function () {
return PThread.unusedWorkers.length
_emnapi_get_worker_count__deps: ['$PThread'],
_emnapi_get_worker_count: function (struct: number) {
const address = struct >> 2
HEAP32[address] = PThread.unusedWorkers.length
HEAP32[address + 1] = PThread.runningWorkers.length
},

_emnapi_on_execute_async_work_js: function (work: number) {
Expand Down