rust/src/test/run-pass/extern-stress.rs
2012-07-04 17:21:29 -07:00

29 lines
578 B
Rust

// This creates a bunch of yielding tasks that run concurrently
// while holding onto C stacks
extern mod rustrt {
fn rust_dbg_call(cb: *u8,
data: libc::uintptr_t) -> libc::uintptr_t;
}
extern fn cb(data: libc::uintptr_t) -> libc::uintptr_t {
if data == 1u {
data
} else {
task::yield();
count(data - 1u) + count(data - 1u)
}
}
fn count(n: uint) -> uint {
rustrt::rust_dbg_call(cb, n)
}
fn main() {
for iter::repeat(100u) {
do task::spawn {
assert count(5u) == 16u;
};
}
}