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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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43
components/bt/bluedroid/stack/l2cap/l2c_utils.c
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@@ -54,8 +54,11 @@ tL2C_LCB *l2cu_allocate_lcb (BD_ADDR p_bd_addr, BOOLEAN is_bonding, tBT_TRANSPOR
for (xx = 0; xx < MAX_L2CAP_LINKS; xx++, p_lcb++) {
if (!p_lcb->in_use) {
btu_free_timer(&p_lcb->timer_entry);
btu_free_timer(&p_lcb->info_timer_entry);
btu_free_timer(&p_lcb->upda_con_timer);
memset (p_lcb, 0, sizeof (tL2C_LCB));
memcpy (p_lcb->remote_bd_addr, p_bd_addr, BD_ADDR_LEN);
p_lcb->in_use = TRUE;
@@ -127,10 +130,14 @@ void l2cu_release_lcb (tL2C_LCB *p_lcb)
p_lcb->in_use = FALSE;
p_lcb->is_bonding = FALSE;
/* Stop timers */
btu_stop_timer (&p_lcb->timer_entry);
btu_stop_timer (&p_lcb->info_timer_entry);
/* Stop and release timers */
btu_free_timer (&p_lcb->timer_entry);
memset(&p_lcb->timer_entry, 0, sizeof(TIMER_LIST_ENT));
btu_free_timer (&p_lcb->info_timer_entry);
memset(&p_lcb->info_timer_entry, 0, sizeof(TIMER_LIST_ENT));
btu_free_timer(&p_lcb->upda_con_timer);
memset(&p_lcb->upda_con_timer, 0, sizeof(TIMER_LIST_ENT));
/* Release any unfinished L2CAP packet on this link */
if (p_lcb->p_hcit_rcv_acl) {
osi_free(p_lcb->p_hcit_rcv_acl);
@@ -1476,25 +1483,24 @@ tL2C_CCB *l2cu_allocate_ccb (tL2C_LCB *p_lcb, UINT16 cid)
memset (&p_ccb->ertm_info, 0, sizeof(tL2CAP_ERTM_INFO));
p_ccb->peer_cfg_already_rejected = FALSE;
p_ccb->fcr_cfg_tries = L2CAP_MAX_FCR_CFG_TRIES;
/* stop and release timers */
btu_free_quick_timer(&p_ccb->fcrb.ack_timer);
memset(&p_ccb->fcrb.ack_timer, 0, sizeof(TIMER_LIST_ENT));
p_ccb->fcrb.ack_timer.param = (TIMER_PARAM_TYPE)p_ccb;
/* if timer is running, remove it from timer list */
if (p_ccb->fcrb.ack_timer.in_use) {
btu_stop_quick_timer (&p_ccb->fcrb.ack_timer);
}
btu_free_quick_timer(&p_ccb->fcrb.mon_retrans_timer);
memset(&p_ccb->fcrb.mon_retrans_timer, 0, sizeof(TIMER_LIST_ENT));
p_ccb->fcrb.mon_retrans_timer.param = (TIMER_PARAM_TYPE)p_ccb;
// btla-specific ++
/* CSP408639 Fix: When L2CAP send amp move channel request or receive
* L2CEVT_AMP_MOVE_REQ do following sequence. Send channel move
* request -> Stop retrans/monitor timer -> Change channel state to CST_AMP_MOVING. */
if (p_ccb->fcrb.mon_retrans_timer.in_use) {
btu_stop_quick_timer (&p_ccb->fcrb.mon_retrans_timer);
}
// btla-specific --
#if (CLASSIC_BT_INCLUDED == TRUE)
l2c_fcr_stop_timer (p_ccb);
l2c_fcr_free_timer (p_ccb);
#endif ///CLASSIC_BT_INCLUDED == TRUE
p_ccb->ertm_info.preferred_mode = L2CAP_FCR_BASIC_MODE; /* Default mode for channel is basic mode */
p_ccb->ertm_info.allowed_modes = L2CAP_FCR_CHAN_OPT_BASIC; /* Default mode for channel is basic mode */
@@ -1531,6 +1537,8 @@ tL2C_CCB *l2cu_allocate_ccb (tL2C_LCB *p_lcb, UINT16 cid)
p_ccb->is_flushable = FALSE;
#endif
btu_free_timer(&p_ccb->timer_entry);
memset(&p_ccb->timer_entry, 0, sizeof(TIMER_LIST_ENT));
p_ccb->timer_entry.param = (TIMER_PARAM_TYPE)p_ccb;
p_ccb->timer_entry.in_use = 0;
@@ -1628,9 +1636,8 @@ void l2cu_release_ccb (tL2C_CCB *p_ccb)
btm_sec_clr_temp_auth_service (p_lcb->remote_bd_addr);
}
/* Stop the timer */
btu_stop_timer (&p_ccb->timer_entry);
/* Stop and free the timer */
btu_free_timer (&p_ccb->timer_entry);
fixed_queue_free(p_ccb->xmit_hold_q, osi_free_func);
p_ccb->xmit_hold_q = NULL;