LCOV - code coverage report
Current view: top level - pulsecore - hook-list.c (source / functions) Hit Total Coverage
Test: lcov.out Lines: 51 61 83.6 %
Date: 2012-07-17 Functions: 6 7 85.7 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 34 58 58.6 %

           Branch data     Line data    Source code
       1                 :            : /***
       2                 :            :   This file is part of PulseAudio.
       3                 :            : 
       4                 :            :   Copyright 2006 Lennart Poettering
       5                 :            : 
       6                 :            :   PulseAudio is free software; you can redistribute it and/or modify
       7                 :            :   it under the terms of the GNU Lesser General Public License as
       8                 :            :   published by the Free Software Foundation; either version 2.1 of the
       9                 :            :   License, or (at your option) any later version.
      10                 :            : 
      11                 :            :   PulseAudio is distributed in the hope that it will be useful, but
      12                 :            :   WITHOUT ANY WARRANTY; without even the implied warranty of
      13                 :            :   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
      14                 :            :   General Public License for more details.
      15                 :            : 
      16                 :            :   You should have received a copy of the GNU Lesser General Public
      17                 :            :   License along with PulseAudio; if not, write to the Free Software
      18                 :            :   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
      19                 :            :   USA.
      20                 :            : ***/
      21                 :            : 
      22                 :            : #ifdef HAVE_CONFIG_H
      23                 :            : #include <config.h>
      24                 :            : #endif
      25                 :            : 
      26                 :            : #include <pulse/xmalloc.h>
      27                 :            : 
      28                 :            : #include <pulsecore/macro.h>
      29                 :            : 
      30                 :            : #include "hook-list.h"
      31                 :            : 
      32                 :          2 : void pa_hook_init(pa_hook *hook, void *data) {
      33         [ -  + ]:          2 :     pa_assert(hook);
      34                 :            : 
      35                 :          2 :     PA_LLIST_HEAD_INIT(pa_hook_slot, hook->slots);
      36                 :          2 :     hook->n_dead = hook->n_firing = 0;
      37                 :          2 :     hook->data = data;
      38                 :          2 : }
      39                 :            : 
      40                 :          3 : static void slot_free(pa_hook *hook, pa_hook_slot *slot) {
      41         [ -  + ]:          3 :     pa_assert(hook);
      42         [ -  + ]:          3 :     pa_assert(slot);
      43                 :            : 
      44 [ -  + ][ +  + ]:          3 :     PA_LLIST_REMOVE(pa_hook_slot, hook->slots, slot);
         [ -  + ][ -  + ]
      45                 :            : 
      46                 :          3 :     pa_xfree(slot);
      47                 :          3 : }
      48                 :            : 
      49                 :          1 : void pa_hook_done(pa_hook *hook) {
      50         [ -  + ]:          1 :     pa_assert(hook);
      51         [ +  - ]:          1 :     pa_assert(hook->n_firing == 0);
      52                 :            : 
      53         [ +  + ]:          3 :     while (hook->slots)
      54                 :          2 :         slot_free(hook, hook->slots);
      55                 :            : 
      56                 :          1 :     pa_hook_init(hook, NULL);
      57                 :          1 : }
      58                 :            : 
      59                 :          3 : pa_hook_slot* pa_hook_connect(pa_hook *hook, pa_hook_priority_t prio, pa_hook_cb_t cb, void *data) {
      60                 :            :     pa_hook_slot *slot, *where, *prev;
      61                 :            : 
      62         [ -  + ]:          3 :     pa_assert(cb);
      63                 :            : 
      64                 :          3 :     slot = pa_xnew(pa_hook_slot, 1);
      65                 :          3 :     slot->hook = hook;
      66                 :          3 :     slot->dead = FALSE;
      67                 :          3 :     slot->callback = cb;
      68                 :          3 :     slot->data = data;
      69                 :          3 :     slot->priority = prio;
      70                 :            : 
      71                 :          3 :     prev = NULL;
      72         [ +  + ]:          4 :     for (where = hook->slots; where; where = where->next) {
      73         [ +  + ]:          3 :         if (prio < where->priority)
      74                 :            :             break;
      75                 :          1 :         prev = where;
      76                 :            :     }
      77                 :            : 
      78 [ -  + ][ +  + ]:          3 :     PA_LLIST_INSERT_AFTER(pa_hook_slot, hook->slots, prev, slot);
         [ +  + ][ +  - ]
      79                 :            : 
      80                 :          3 :     return slot;
      81                 :            : }
      82                 :            : 
      83                 :          1 : void pa_hook_slot_free(pa_hook_slot *slot) {
      84         [ -  + ]:          1 :     pa_assert(slot);
      85         [ -  + ]:          1 :     pa_assert(!slot->dead);
      86                 :            : 
      87         [ -  + ]:          1 :     if (slot->hook->n_firing > 0) {
      88                 :          0 :         slot->dead = TRUE;
      89                 :          0 :         slot->hook->n_dead++;
      90                 :            :     } else
      91                 :          1 :         slot_free(slot->hook, slot);
      92                 :          1 : }
      93                 :            : 
      94                 :          2 : pa_hook_result_t pa_hook_fire(pa_hook *hook, void *data) {
      95                 :            :     pa_hook_slot *slot, *next;
      96                 :          2 :     pa_hook_result_t result = PA_HOOK_OK;
      97                 :            : 
      98         [ -  + ]:          2 :     pa_assert(hook);
      99                 :            : 
     100                 :          2 :     hook->n_firing ++;
     101                 :            : 
     102         [ +  + ]:          7 :     PA_LLIST_FOREACH(slot, hook->slots) {
     103         [ -  + ]:          5 :         if (slot->dead)
     104                 :          0 :             continue;
     105                 :            : 
     106         [ +  - ]:          5 :         if ((result = slot->callback(hook->data, data, slot->data)) != PA_HOOK_OK)
     107                 :            :             break;
     108                 :            :     }
     109                 :            : 
     110                 :          2 :     hook->n_firing --;
     111         [ -  + ]:          2 :     pa_assert(hook->n_firing >= 0);
     112                 :            : 
     113         [ -  + ]:          2 :     for (slot = hook->slots; hook->n_dead > 0 && slot; slot = next) {
     114                 :          0 :         next = slot->next;
     115                 :            : 
     116         [ #  # ]:          0 :         if (slot->dead) {
     117                 :          0 :             slot_free(hook, slot);
     118                 :          0 :             hook->n_dead--;
     119                 :            :         }
     120                 :            :     }
     121                 :            : 
     122         [ -  + ]:          2 :     pa_assert(hook->n_dead == 0);
     123                 :            : 
     124                 :          2 :     return result;
     125                 :            : }
     126                 :            : 
     127                 :          0 : pa_bool_t pa_hook_is_firing(pa_hook *hook) {
     128         [ #  # ]:          0 :     pa_assert(hook);
     129                 :            : 
     130                 :          0 :     return hook->n_firing > 0;
     131                 :            : }

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