| 0,0 → 1,57 |
|---|
| #include <sys/ksys.h> |
| |
| /* Very simple example of working with futexes in Kolibri OS. |
| * Author turbocat (Maxim Logaev). |
| * Thanks to Vitaly Krylov for help. |
| * |
| * The result of the program execution can be seen in the debug board. |
| */ |
| |
| #define TH_STACK_SIZE 1024 |
| #define TH_LOCK 1 |
| #define TH_UNLOCK 0 |
| |
| uint8_t th_stack[TH_STACK_SIZE]; |
| |
| int glob_var = 0; |
| int th_lock = TH_UNLOCK; |
| uint32_t futex = 0; |
| |
| void th_main(void) |
| { |
| _ksys_debug_puts("Child thread start\n"); |
| _ksys_futex_wait(futex, TH_LOCK, 0); |
| glob_var = 99; |
| _ksys_debug_puts("Child thread end\n"); |
| _ksys_exit(); |
| } |
| |
| int main(void) |
| { |
| _ksys_debug_puts("Parrent thread start"); |
| futex = _ksys_futex_create(&th_lock); |
| th_lock = TH_LOCK; |
| |
| if (_ksys_create_thread(th_main, th_stack) == -1) { |
| _ksys_debug_puts("Unable to create a new thread!\n"); |
| return 1; |
| } |
| |
| glob_var = 88; |
| _ksys_thread_yield(); |
| |
| _ksys_delay(100); |
| |
| if (glob_var == 88) { |
| _ksys_debug_puts("Futex test OK :)\n"); |
| } else { |
| _ksys_debug_puts("Futex test FAIL :(\n"); |
| } |
| |
| th_lock = TH_UNLOCK; |
| _ksys_futex_wake(futex, 1); |
| |
| _ksys_futex_destroy(futex); |
| _ksys_debug_puts("Parrent thread end"); |
| return 0; |
| } |