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component/bt: free timer resources after using them

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Bluedroid use a set of timer function pairs such as btu_start_timer/btu_stop_timer, btu_sys_start_timer/btu_sys_stop_timer for use, in a lack of timer release functions. Thus the timers may be exhausted after some event sequence such as repetition of connection/reconnection with different devices. The maximum timer number used in bluedroid is given by ALARM_CBS_NUM which is 30 for now. This bugfix borrowed some update from bluedroid in Andoroid 7.0, which add timer release functions which promote the recycle of timer resources.
This commit is contained in:
wangmengyang
2018-01-27 19:03:06 +08:00
parent daa8cfa800
commit 90c9ffa975
23 changed files with 231 additions and 56 deletions
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5
components/bt/bluedroid/stack/sdp/sdp_utils.c
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@@ -119,6 +119,7 @@ tCONN_CB *sdpu_allocate_ccb (void)
/* Look through each connection control block for a free one */
for (xx = 0, p_ccb = sdp_cb.ccb; xx < SDP_MAX_CONNECTIONS; xx++, p_ccb++) {
if (p_ccb->con_state == SDP_STATE_IDLE) {
btu_free_timer(&p_ccb->timer_entry);
memset (p_ccb, 0, sizeof (tCONN_CB));
p_ccb->timer_entry.param = (UINT32) p_ccb;
@@ -143,8 +144,8 @@ tCONN_CB *sdpu_allocate_ccb (void)
*******************************************************************************/
void sdpu_release_ccb (tCONN_CB *p_ccb)
{
/* Ensure timer is stopped */
btu_stop_timer (&p_ccb->timer_entry);
/* Ensure timer is stopped and released */
btu_free_timer(&p_ccb->timer_entry);
/* Drop any response pointer we may be holding */
p_ccb->con_state = SDP_STATE_IDLE;