Last change
on this file since bbf2cb1 was
c26bea2a,
checked in by Peter A. Buhr <pabuhr@…>, 15 months ago
|
first attempt at renaming directory tests/concurrent to tests/concurrency to harmonize with other concurrency directory names
|
-
Property mode set to
100644
|
File size:
968 bytes
|
Rev | Line | |
---|
[357ab79] | 1 | #include <fstream.hfa> |
---|
| 2 | #include <locks.hfa> |
---|
| 3 | #include <thread.hfa> |
---|
| 4 | |
---|
| 5 | const unsigned int num_times = 50000; |
---|
| 6 | |
---|
| 7 | struct MutexObj { |
---|
| 8 | mcs_lock l; |
---|
| 9 | thread$ * id; |
---|
| 10 | size_t sum; |
---|
| 11 | }; |
---|
| 12 | |
---|
| 13 | MutexObj mo; |
---|
| 14 | |
---|
| 15 | void trash() { |
---|
| 16 | unsigned t[100]; |
---|
| 17 | for(i; 100) { |
---|
| 18 | t[i] = 0xDEADBEEF; |
---|
| 19 | } |
---|
| 20 | } |
---|
| 21 | |
---|
| 22 | unsigned cs() { |
---|
| 23 | thread$ * me = active_thread(); |
---|
| 24 | unsigned value = (unsigned)me; |
---|
| 25 | mcs_node n; |
---|
| 26 | lock(mo.l, n); |
---|
| 27 | { |
---|
| 28 | size_t tsum = mo.sum; |
---|
| 29 | mo.id = me; |
---|
| 30 | yield(random(5)); |
---|
| 31 | if(mo.id != me) sout | "Intruder!"; |
---|
| 32 | mo.sum = tsum + value; |
---|
| 33 | } |
---|
| 34 | unlock(mo.l, n); |
---|
| 35 | return value; |
---|
| 36 | } |
---|
| 37 | |
---|
| 38 | thread LockCheck { |
---|
| 39 | size_t sum; |
---|
| 40 | }; |
---|
| 41 | |
---|
| 42 | void main(LockCheck & this) { |
---|
| 43 | this.sum = 0; |
---|
| 44 | for(num_times) { |
---|
| 45 | trash(); |
---|
| 46 | this.sum += cs(); |
---|
| 47 | trash(); |
---|
| 48 | yield(random(10)); |
---|
| 49 | } |
---|
| 50 | } |
---|
| 51 | |
---|
| 52 | int main() { |
---|
| 53 | size_t sum = -32; |
---|
| 54 | mo.sum = -32; |
---|
| 55 | processor p[2]; |
---|
| 56 | sout | "Starting"; |
---|
| 57 | { |
---|
| 58 | LockCheck checkers[13]; |
---|
| 59 | for(i;13) { |
---|
| 60 | sum += join(checkers[i]).sum; |
---|
| 61 | } |
---|
| 62 | } |
---|
| 63 | sout | "Done!"; |
---|
| 64 | if(sum == mo.sum) sout | "Match!"; |
---|
| 65 | else sout | "No Match!" | sum | "vs" | mo.sum; |
---|
| 66 | } |
---|
Note: See
TracBrowser
for help on using the repository browser.