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This commit is contained in:
Brian Anderson
2011-12-17 16:45:13 -08:00
parent 128621be97
commit aeadc6269e
5 changed files with 88 additions and 1 deletions
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12
src/rt/rust_task.cpp
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@@ -404,6 +404,9 @@ rust_task::yield(size_t time_in_us, bool *killed) {
*killed = true;
}
// We're not going to need any extra stack for a while
clear_stack_cache();
yield_timer.reset_us(time_in_us);
// Return to the scheduler.
@@ -746,6 +749,15 @@ rust_task::del_stack() {
record_stack_limit();
}
void
rust_task::clear_stack_cache() {
A(sched, stk != NULL, "Expected to have a stack");
if (stk->prev != NULL) {
free_stk(this, stk->prev);
stk->prev = NULL;
}
}
void
rust_task::record_stack_limit() {
// The function prolog compares the amount of stack needed to the end of