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Address #1405 - don't try and resume fibers that can't be resumed. 

FOr fibers that _can_ be resumed and then get cancelled, the sched_id
will be incremented later prevent the spurious wake ups.
This commit is contained in:
Calvin Rose 2024-02-19 08:37:49 -06:00
parent e66dc14b3a
commit c9897f99c3
1 changed files with 12 additions and 8 deletions
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20
src/core/ev.c
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@ -1166,10 +1166,12 @@ JANET_CORE_FN(cfun_channel_close,
msg.argj = janet_wrap_nil();
janet_ev_post_event(vm, janet_thread_chan_cb, msg);
} else {
if (writer.mode == JANET_CP_MODE_CHOICE_WRITE) {
janet_schedule(writer.fiber, make_close_result(channel));
} else {
janet_schedule(writer.fiber, janet_wrap_nil());
if (janet_fiber_can_resume(writer.fiber)) {
if (writer.mode == JANET_CP_MODE_CHOICE_WRITE) {
janet_schedule(writer.fiber, make_close_result(channel));
} else {
janet_schedule(writer.fiber, janet_wrap_nil());
}
}
}
}
@ -1185,10 +1187,12 @@ JANET_CORE_FN(cfun_channel_close,
msg.argj = janet_wrap_nil();
janet_ev_post_event(vm, janet_thread_chan_cb, msg);
} else {
if (reader.mode == JANET_CP_MODE_CHOICE_READ) {
janet_schedule(reader.fiber, make_close_result(channel));
} else {
janet_schedule(reader.fiber, janet_wrap_nil());
if (janet_fiber_can_resume(reader.fiber)) {
if (reader.mode == JANET_CP_MODE_CHOICE_READ) {
janet_schedule(reader.fiber, make_close_result(channel));
} else {
janet_schedule(reader.fiber, janet_wrap_nil());
}
}
}
}