LCOV - code coverage report
Current view: top level - tests - once-test.c (source / functions) Hit Total Coverage
Test: lcov.out Lines: 30 31 96.8 %
Date: 2012-07-17 Functions: 3 3 100.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 15 21 71.4 %

           Branch data     Line data    Source code
       1                 :            : /***
       2                 :            :   This file is part of PulseAudio.
       3                 :            : 
       4                 :            :   PulseAudio is free software; you can redistribute it and/or modify
       5                 :            :   it under the terms of the GNU Lesser General Public License as published
       6                 :            :   by the Free Software Foundation; either version 2.1 of the License,
       7                 :            :   or (at your option) any later version.
       8                 :            : 
       9                 :            :   PulseAudio is distributed in the hope that it will be useful, but
      10                 :            :   WITHOUT ANY WARRANTY; without even the implied warranty of
      11                 :            :   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
      12                 :            :   General Public License for more details.
      13                 :            : 
      14                 :            :   You should have received a copy of the GNU Lesser General Public License
      15                 :            :   along with PulseAudio; if not, write to the Free Software
      16                 :            :   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
      17                 :            :   USA.
      18                 :            : ***/
      19                 :            : 
      20                 :            : #ifdef HAVE_CONFIG_H
      21                 :            : #include <config.h>
      22                 :            : #endif
      23                 :            : 
      24                 :            : #ifdef HAVE_PTHREAD
      25                 :            : #include <pthread.h>
      26                 :            : #endif
      27                 :            : 
      28                 :            : #include <pulsecore/thread.h>
      29                 :            : #include <pulsecore/once.h>
      30                 :            : #include <pulsecore/log.h>
      31                 :            : #include <pulsecore/core-util.h>
      32                 :            : #include <pulsecore/atomic.h>
      33                 :            : #include <pulse/xmalloc.h>
      34                 :            : 
      35                 :            : static pa_once once = PA_ONCE_INIT;
      36                 :            : static volatile unsigned n_run = 0;
      37                 :            : static const char * volatile ran_by = NULL;
      38                 :            : #ifdef HAVE_PTHREAD
      39                 :            : static pthread_barrier_t barrier;
      40                 :            : #endif
      41                 :            : static unsigned n_cpu;
      42                 :            : 
      43                 :            : #define N_ITERATIONS 500
      44                 :            : #define N_THREADS 100
      45                 :            : 
      46                 :        500 : static void once_func(void) {
      47                 :        500 :     n_run++;
      48                 :        500 :     ran_by = (const char*) pa_thread_get_data(pa_thread_self());
      49                 :        500 : }
      50                 :            : 
      51                 :      49991 : static void thread_func(void *data) {
      52                 :            : #ifdef HAVE_PTHREAD
      53                 :            :     int r;
      54                 :            : 
      55                 :            : #ifdef HAVE_PTHREAD_SETAFFINITY_NP
      56                 :            :     static pa_atomic_t i_cpu = PA_ATOMIC_INIT(0);
      57                 :            :     cpu_set_t mask;
      58                 :            : 
      59                 :      49991 :     CPU_ZERO(&mask);
      60            [ + ]:      49991 :     CPU_SET((size_t) (pa_atomic_inc(&i_cpu) % n_cpu), &mask);
      61         [ -  + ]:      49991 :     pa_assert_se(pthread_setaffinity_np(pthread_self(), sizeof(mask), &mask) == 0);
      62                 :            : #endif
      63                 :            : 
      64                 :      49971 :     pa_log_debug("started up: %s", (char *) data);
      65                 :            : 
      66                 :      49984 :     r = pthread_barrier_wait(&barrier);
      67         [ -  + ]:      48766 :     pa_assert(r == 0 || r == PTHREAD_BARRIER_SERIAL_THREAD);
      68                 :            : #endif /* HAVE_PTHREAD */
      69                 :            : 
      70                 :      48766 :     pa_run_once(&once, once_func);
      71                 :      49165 : }
      72                 :            : 
      73                 :          1 : int main(int argc, char *argv[]) {
      74                 :            :     unsigned n, i;
      75                 :            : 
      76         [ -  + ]:          1 :     if (!getenv("MAKE_CHECK"))
      77                 :          0 :         pa_log_set_level(PA_LOG_DEBUG);
      78                 :            : 
      79                 :          1 :     n_cpu = pa_ncpus();
      80                 :            : 
      81         [ +  + ]:        501 :     for (n = 0; n < N_ITERATIONS; n++) {
      82                 :            :         pa_thread* threads[N_THREADS];
      83                 :            : 
      84                 :            : #ifdef HAVE_PTHREAD
      85         [ -  + ]:        500 :         pa_assert_se(pthread_barrier_init(&barrier, NULL, N_THREADS) == 0);
      86                 :            : #endif
      87                 :            : 
      88                 :            :         /* Yes, kinda ugly */
      89                 :            :         pa_zero(once);
      90                 :            : 
      91         [ +  + ]:      50500 :         for (i = 0; i < N_THREADS; i++)
      92                 :      50000 :             threads[i] = pa_thread_new("once", thread_func, pa_sprintf_malloc("Thread #%i", i+1));
      93                 :            : 
      94         [ +  + ]:      50500 :         for (i = 0; i < N_THREADS; i++)
      95                 :      50000 :             pa_thread_join(threads[i]);
      96                 :            : 
      97         [ -  + ]:        500 :         pa_assert(n_run == 1);
      98                 :        500 :         pa_log_info("ran by %s", ran_by);
      99                 :            : 
     100         [ +  + ]:      50500 :         for (i = 0; i < N_THREADS; i++) {
     101                 :      50000 :             pa_xfree(pa_thread_get_data(threads[i]));
     102                 :      50000 :             pa_thread_free(threads[i]);
     103                 :            :         }
     104                 :            : 
     105                 :        500 :         n_run = 0;
     106                 :        500 :         ran_by = NULL;
     107                 :            : 
     108                 :            : #ifdef HAVE_PTHREAD
     109         [ -  + ]:        500 :         pa_assert_se(pthread_barrier_destroy(&barrier) == 0);
     110                 :            : #endif
     111                 :            :     }
     112                 :            : 
     113                 :            :     return 0;
     114                 :            : }

Generated by: LCOV version 1.9