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Allow shorthand for setting task-id on new threads with flag.

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Avoids the need to wrap function bodies in closures in many cases.
This commit is contained in:
Calvin Rose 2022-07-03 12:08:21 -05:00
parent f296c8f5fb
commit 435e64d4cf
1 changed files with 11 additions and 4 deletions
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15
src/core/ev.c
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@ -2724,6 +2724,8 @@ JANET_CORE_FN(cfun_ev_go,
return janet_wrap_fiber(fiber);
}
#define JANET_THREAD_SUPERVISOR_FLAG 0x100
/* For ev/thread - Run an interpreter in the new thread. */
static JanetEVGenericMessage janet_go_thread_subr(JanetEVGenericMessage args) {
JanetBuffer *buffer = (JanetBuffer *) args.argp;
@ -2746,7 +2748,7 @@ static JanetEVGenericMessage janet_go_thread_subr(JanetEVGenericMessage args) {
}
/* Get supervsior */
if (flags & 0x8) {
if (flags & JANET_THREAD_SUPERVISOR_FLAG) {
Janet sup =
janet_unmarshal(nextbytes, endbytes - nextbytes,
JANET_MARSHAL_UNSAFE, NULL, &nextbytes);
@ -2798,6 +2800,10 @@ static JanetEVGenericMessage janet_go_thread_subr(JanetEVGenericMessage args) {
} else {
fiber = janet_unwrap_fiber(fiberv);
}
if (flags & 0x8) {
if (NULL == fiber->env) fiber->env = janet_table(0);
janet_table_put(fiber->env, janet_ckeywordv("task-id"), value);
}
fiber->supervisor_channel = janet_vm.user;
janet_schedule(fiber, value);
janet_loop();
@ -2842,6 +2848,7 @@ JANET_CORE_FN(cfun_ev_thread,
"If you want to run the thread without waiting for a result, pass the `:n` flag to return nil immediately. "
"Otherwise, returns nil. Available flags:\n\n"
"* `:n` - return immediately\n"
"* `:t` - set the task-id of the new thread to value. The task-id is passed in messages to the supervisor channel.\n"
"* `:a` - don't copy abstract registry to new thread (performance optimization)\n"
"* `:c` - don't copy cfunction registry to new thread (performance optimization)") {
janet_arity(argc, 1, 4);
@ -2849,10 +2856,10 @@ JANET_CORE_FN(cfun_ev_thread,
if (!janet_checktype(argv[0], JANET_FUNCTION)) janet_getfiber(argv, 0);
uint64_t flags = 0;
if (argc >= 3) {
flags = janet_getflags(argv, 2, "nac");
flags = janet_getflags(argv, 2, "nact");
}
void *supervisor = janet_optabstract(argv, argc, 3, &janet_channel_type, janet_vm.root_fiber->supervisor_channel);
if (NULL != supervisor) flags |= 0x8;
if (NULL != supervisor) flags |= JANET_THREAD_SUPERVISOR_FLAG;
/* Marshal arguments for the new thread. */
JanetBuffer *buffer = janet_malloc(sizeof(JanetBuffer));
@ -2863,7 +2870,7 @@ JANET_CORE_FN(cfun_ev_thread,
if (!(flags & 0x2)) {
janet_marshal(buffer, janet_wrap_table(janet_vm.abstract_registry), NULL, JANET_MARSHAL_UNSAFE);
}
if (flags & 0x8) {
if (flags & JANET_THREAD_SUPERVISOR_FLAG) {
janet_marshal(buffer, janet_wrap_abstract(supervisor), NULL, JANET_MARSHAL_UNSAFE);
}
if (!(flags & 0x4)) {