int btsock_thread_create(btsock_signaled_cb callback, btsock_cmd_cb cmd_callback)
{
int ret = FALSE;
asrt(callback || cmd_callback);
lock_slot(&thread_slot_lock);
int h = alloc_thread_slot();
unlock_slot(&thread_slot_lock);
APPL_TRACE_DEBUG1("alloc_thread_slot ret:%d", h);
if(h >= 0)
{
init_poll(h);
if((ts[h].thread_id = create_thread(sock_poll_thread, (void*)h)) != -1)
{
APPL_TRACE_DEBUG2("h:%d, thread id:%d", h, ts[h].thread_id);
ts[h].callback = callback;
ts[h].cmd_callback = cmd_callback;
}
else
{
free_thread_slot(h);
h = -1;
}
}
return h;
}
static uint32_t on_srv_rfc_connect(tBTA_JV_RFCOMM_SRV_OPEN *p_open, uint32_t id)
{
uint32_t new_listen_slot_id = 0;
lock_slot(&slot_lock);
rfc_slot_t* srv_rs = find_rfc_slot_by_id(id);
if(srv_rs)
{
rfc_slot_t* accept_rs = create_srv_accept_rfc_slot(srv_rs, (const bt_bdaddr_t*)p_open->rem_bda,
p_open->handle, p_open->new_listen_handle);
if(accept_rs)
{
//start monitor the socket
btsock_thread_add_fd(pth, srv_rs->fd, BTSOCK_RFCOMM, SOCK_THREAD_FD_EXCEPTION, srv_rs->id);
btsock_thread_add_fd(pth, accept_rs->fd, BTSOCK_RFCOMM, SOCK_THREAD_FD_RD, accept_rs->id);
APPL_TRACE_DEBUG1("sending connect signal & app fd:%dto app server to accept() the connection",
accept_rs->app_fd);
APPL_TRACE_DEBUG2("server fd:%d, scn:%d", srv_rs->fd, srv_rs->scn);
send_app_connect_signal(srv_rs->fd, &accept_rs->addr, srv_rs->scn, 0, accept_rs->app_fd);
accept_rs->app_fd = -1; //the fd is closed after sent to app
new_listen_slot_id = srv_rs->id;
}
}
unlock_slot(&slot_lock);
return new_listen_slot_id;
}
static void on_rfc_write_done(tBTA_JV_RFCOMM_WRITE *p, uint32_t id)
{
lock_slot(&slot_lock);
rfc_slot_t* rs = find_rfc_slot_by_id(id);
if(rs && !rs->f.outgoing_congest)
{
//mointer the fd for any outgoing data
btsock_thread_add_fd(pth, rs->fd, BTSOCK_RFCOMM, SOCK_THREAD_FD_RD, rs->id);
}
unlock_slot(&slot_lock);
}
static void on_l2c_write_done(tBTA_JV_L2CAP_WRITE *p, uint32_t id)
{
lock_slot(&slot_lock);
l2c_slot_t* ls = find_l2c_slot_by_id(id);
if(ls && !ls->f.outgoing_congest)
{
//mointer the fd for any outgoing data
btsock_thread_add_fd(pth, ls->fd, BTSOCK_L2CAP, SOCK_THREAD_FD_RD, ls->id);
}
unlock_slot(&slot_lock);
}
static void on_l2c_outgoing_congest(tBTA_JV_L2CAP_CONG *p, uint32_t id)
{
lock_slot(&slot_lock);
l2c_slot_t* ls = find_l2c_slot_by_id(id);
if(ls)
{
ls->f.outgoing_congest = p->cong ? 1 : 0;
//mointer the fd for any outgoing data
if(!ls->f.outgoing_congest)
btsock_thread_add_fd(pth, ls->fd, BTSOCK_L2CAP, SOCK_THREAD_FD_RD, ls->id);
}
unlock_slot(&slot_lock);
}
static void on_rfc_outgoing_congest(tBTA_JV_RFCOMM_CONG *p, uint32_t id)
{
lock_slot(&slot_lock);
rfc_slot_t* rs = find_rfc_slot_by_id(id);
if(rs)
{
rs->f.outgoing_congest = p->cong ? 1 : 0;
//mointer the fd for any outgoing data
if(!rs->f.outgoing_congest)
btsock_thread_add_fd(pth, rs->fd, BTSOCK_RFCOMM, SOCK_THREAD_FD_RD, rs->id);
}
unlock_slot(&slot_lock);
}
void btsock_l2c_cleanup()
{
int curr_pth = pth;
pth = -1;
btsock_thread_exit(curr_pth);
lock_slot(&slot_lock);
int i;
for(i = 0; i < MAX_L2C_SOCK_CHANNEL; i++)
{
if(l2c_slots[i].in_use)
cleanup_l2c_slot(&l2c_slots[i]);
}
unlock_slot(&slot_lock);
}
void btsock_rfc_cleanup()
{
int curr_pth = pth;
pth = -1;
btsock_thread_exit(curr_pth);
lock_slot(&slot_lock);
int i;
for(i = 0; i < MAX_RFC_CHANNEL; i++)
{
if(rfc_slots[i].id)
cleanup_rfc_slot(&rfc_slots[i]);
}
unlock_slot(&slot_lock);
}
static void on_rfc_close(tBTA_JV_RFCOMM_CLOSE * p_close, uint32_t id)
{
lock_slot(&slot_lock);
rfc_slot_t* rs = find_rfc_slot_by_id(id);
if(rs)
{
APPL_TRACE_DEBUG4("on_rfc_close, slot id:%d, fd:%d, rfc scn:%d, server:%d",
rs->id, rs->fd, rs->scn, rs->f.server);
free_rfc_slot_scn(rs);
// rfc_handle already closed when receiving rfcomm close event from stack.
rs->f.connected = FALSE;
cleanup_rfc_slot(rs);
}
unlock_slot(&slot_lock);
}
static void on_cl_rfc_init(tBTA_JV_RFCOMM_CL_INIT *p_init, uint32_t id)
{
lock_slot(&slot_lock);
rfc_slot_t* rs = find_rfc_slot_by_id(id);
if(rs)
{
if (p_init->status != BTA_JV_SUCCESS)
cleanup_rfc_slot(rs);
else
{
rs->rfc_handle = p_init->handle;
}
}
unlock_slot(&slot_lock);
}
static void on_l2c_close(tBTA_JV_L2CAP_CLOSE * p_close, uint32_t id)
{
lock_slot(&slot_lock);
l2c_slot_t* ls = find_l2c_slot_by_id(id);
if(ls)
{
APPL_TRACE_DEBUG("on_l2c_close, slot id:%d, fd:%d, l2c psm:%d, server:%d",
ls->id, ls->fd, ls->psm, ls->f.server);
free_l2c_slot_psm(ls);
// l2c_handle already closed when receiving l2cap close event from stack.
ls->f.connected = FALSE;
cleanup_l2c_slot(ls);
}
unlock_slot(&slot_lock);
}
static void on_cl_l2c_init(tBTA_JV_L2CAP_CL_INIT *p_init, uint32_t id)
{
lock_slot(&slot_lock);
l2c_slot_t* ls = find_l2c_slot_by_id(id);
if(ls)
{
if (p_init->status != BTA_JV_SUCCESS)
cleanup_l2c_slot(ls);
else
{
ls->l2c_handle = p_init->handle;
APPL_TRACE_DEBUG("on_cl_l2c_init ls->l2c_handle %d", ls->l2c_handle);
}
}
unlock_slot(&slot_lock);
}
bt_status_t btsock_l2c_listen(const char* service_name, const uint8_t* service_uuid, int channel,
int* sock_fd, int flags)
{
int status = BT_STATUS_FAIL;
APPL_TRACE_DEBUG("btsock_l2c_listen, service_name:%s", service_name);
/* TODO find the available psm list for obex */
if(sock_fd == NULL || (service_uuid == NULL))
{
APPL_TRACE_ERROR("invalid sock_fd:%p, uuid:%p", sock_fd, service_uuid);
return BT_STATUS_PARM_INVALID;
}
*sock_fd = -1;
if(!is_init_done())
return BT_STATUS_NOT_READY;
/* validate it for FTP and OPP */
//Check the service_uuid. overwrite the channel # if reserved
int reserved_channel = get_reserved_l2c_channel(service_uuid);
if(reserved_channel > 0)
{
channel = reserved_channel;
}
else
{
return BT_STATUS_FAIL;
}
lock_slot(&slot_lock);
l2c_slot_t* ls = alloc_l2c_slot(NULL, service_name, service_uuid, channel, flags, TRUE);
if(ls)
{
APPL_TRACE_DEBUG("BTA_JvCreateRecordByUser:%s", service_name);
BTA_JvCreateRecordByUser((void *)(ls->id));
APPL_TRACE_DEBUG("BTA_JvCreateRecordByUser userdata :%d", service_name);
*sock_fd = ls->app_fd;
ls->app_fd = -1; //the fd ownelship is transferred to app
status = BT_STATUS_SUCCESS;
btsock_thread_add_fd(pth, ls->fd, BTSOCK_L2CAP, SOCK_THREAD_FD_EXCEPTION, ls->id);
}
unlock_slot(&slot_lock);
return status;
}
static void on_srv_rfc_listen_started(tBTA_JV_RFCOMM_START *p_start, uint32_t id)
{
lock_slot(&slot_lock);
rfc_slot_t* rs = find_rfc_slot_by_id(id);
if(rs)
{
if (p_start->status != BTA_JV_SUCCESS)
cleanup_rfc_slot(rs);
else
{
rs->rfc_handle = p_start->handle;
if(!send_app_scn(rs))
{
//closed
APPL_TRACE_DEBUG1("send_app_scn() failed, close rs->id:%d", rs->id);
cleanup_rfc_slot(rs);
}
}
}
unlock_slot(&slot_lock);
}
bt_status_t btsock_rfc_listen(const char* service_name, const uint8_t* service_uuid, int channel,
int* sock_fd, int flags)
{
APPL_TRACE_DEBUG1("btsock_rfc_listen, service_name:%s", service_name);
if(sock_fd == NULL || (service_uuid == NULL && (channel < 1 || channel > 30)))
{
APPL_TRACE_ERROR3("invalid rfc channel:%d or sock_fd:%p, uuid:%p", channel, sock_fd, service_uuid);
return BT_STATUS_PARM_INVALID;
}
*sock_fd = -1;
if(!is_init_done())
return BT_STATUS_NOT_READY;
if(is_uuid_empty(service_uuid))
service_uuid = UUID_SPP; //use serial port profile to listen to specified channel
else
{
//Check the service_uuid. overwrite the channel # if reserved
int reserved_channel = get_reserved_rfc_channel(service_uuid);
if(reserved_channel > 0)
{
channel = reserved_channel;
}
}
int status = BT_STATUS_FAIL;
lock_slot(&slot_lock);
rfc_slot_t* rs = alloc_rfc_slot(NULL, service_name, service_uuid, channel, flags, TRUE);
if(rs)
{
APPL_TRACE_DEBUG1("BTA_JvCreateRecordByUser:%s", service_name);
BTA_JvCreateRecordByUser((void *)rs->id);
*sock_fd = rs->app_fd;
rs->app_fd = -1; //the fd ownership is transferred to app
status = BT_STATUS_SUCCESS;
btsock_thread_add_fd(pth, rs->fd, BTSOCK_RFCOMM, SOCK_THREAD_FD_EXCEPTION, rs->id);
}
unlock_slot(&slot_lock);
return status;
}
int btsock_thread_exit(int h)
{
if(h < 0 || h >= MAX_THREAD)
{
APPL_TRACE_ERROR1("invalid bt thread handle:%d", h);
return FALSE;
}
if(ts[h].cmd_fdw == -1)
{
APPL_TRACE_ERROR0("cmd socket is not created");
return FALSE;
}
sock_cmd_t cmd = {CMD_EXIT, 0, 0, 0, 0};
if(send(ts[h].cmd_fdw, &cmd, sizeof(cmd), 0) == sizeof(cmd))
{
pthread_join(ts[h].thread_id, 0);
lock_slot(&thread_slot_lock);
free_thread_slot(h);
unlock_slot(&thread_slot_lock);
return TRUE;
}
return FALSE;
}
static void on_srv_l2c_listen_started(tBTA_JV_L2CAP_START *p_start, uint32_t id)
{
lock_slot(&slot_lock);
l2c_slot_t* ls = find_l2c_slot_by_id(id);
if(ls)
{
if (p_start->status != BTA_JV_SUCCESS)
cleanup_l2c_slot(ls);
else
{
ls->l2c_handle = p_start->handle;
APPL_TRACE_DEBUG("on_srv_l2c_listen_started ls->l2c_handle %d", ls->l2c_handle);
if(!send_app_psm(ls))
{
//closed
APPL_TRACE_DEBUG("send_app_psm() failed, close ls->id:%d", ls->id);
cleanup_l2c_slot(ls);
}
}
}
unlock_slot(&slot_lock);
}
static void on_cli_l2c_connect(tBTA_JV_L2CAP_OPEN *p_open, uint32_t id)
{
lock_slot(&slot_lock);
l2c_slot_t* ls = find_l2c_slot_by_id(id);
if(ls && p_open->status == BTA_JV_SUCCESS)
{
bd_copy(ls->addr.address, p_open->rem_bda, 0);
//notify app l2c is connected
APPL_TRACE_DEBUG("call send_app_connect_signal, slot id:%d, fd:%d, l2c psm:%d, server:%d",
ls->id, ls->fd, ls->psm, ls->f.server);
if(send_app_connect_signal(ls->fd, &ls->addr, ls->psm, 0, -1))
{
//start monitoring the socketpair to get call back when app writing data
APPL_TRACE_DEBUG("on_l2c_connect_ind, connect signal sent, slot id:%d, l2c psm:%d, server:%d",
ls->id, ls->psm, ls->f.server);
ls->f.connected = TRUE;
}
else APPL_TRACE_ERROR("send_app_connect_signal failed");
}
else if(ls)
cleanup_l2c_slot(ls);
unlock_slot(&slot_lock);
}
static void on_cli_rfc_connect(tBTA_JV_RFCOMM_OPEN *p_open, uint32_t id)
{
lock_slot(&slot_lock);
rfc_slot_t* rs = find_rfc_slot_by_id(id);
if(rs && p_open->status == BTA_JV_SUCCESS)
{
rs->rfc_port_handle = BTA_JvRfcommGetPortHdl(p_open->handle);
bd_copy(rs->addr.address, p_open->rem_bda, 0);
//notify app rfc is connected
APPL_TRACE_DEBUG4("call send_app_connect_signal, slot id:%d, fd:%d, rfc scn:%d, server:%d",
rs->id, rs->fd, rs->scn, rs->f.server);
if(send_app_connect_signal(rs->fd, &rs->addr, rs->scn, 0, -1))
{
//start monitoring the socketpair to get call back when app writing data
APPL_TRACE_DEBUG3("on_rfc_connect_ind, connect signal sent, slot id:%d, rfc scn:%d, server:%d",
rs->id, rs->scn, rs->f.server);
rs->f.connected = TRUE;
}
else APPL_TRACE_ERROR0("send_app_connect_signal failed");
}
else if(rs)
cleanup_rfc_slot(rs);
unlock_slot(&slot_lock);
}
bt_status_t btsock_l2c_connect(const bt_bdaddr_t *bd_addr, const uint8_t* service_uuid,
int channel, int* sock_fd, int flags)
{
if(sock_fd == NULL || (service_uuid == NULL))
{
APPL_TRACE_ERROR("invalid sock_fd:%p, uuid:%p", sock_fd, service_uuid);
return BT_STATUS_PARM_INVALID;
}
*sock_fd = -1;
if(!is_init_done())
return BT_STATUS_NOT_READY;
int status = BT_STATUS_FAIL;
lock_slot(&slot_lock);
l2c_slot_t* ls = alloc_l2c_slot(bd_addr, NULL, service_uuid, channel, flags, FALSE);
if(ls)
{
ls->f.client = TRUE;
if(is_uuid_empty(service_uuid))
{
APPL_TRACE_DEBUG("connecting to l2cap channel:%d without service discovery", channel);
if(BTA_JvL2capConnect(ls->security, ls->role, ls->psm, 672, ls->addr.address,
l2cap_cback, (void*)ls->id) == BTA_JV_SUCCESS)
{
if(send_app_psm(ls))
{
btsock_thread_add_fd(pth, ls->fd, BTSOCK_L2CAP,
SOCK_THREAD_FD_RD, ls->id);
*sock_fd = ls->app_fd;
ls->app_fd = -1; //the fd ownelship is transferred to app
status = BT_STATUS_SUCCESS;
}
else cleanup_l2c_slot(ls);
}
else cleanup_l2c_slot(ls);
}
else
{
tSDP_UUID sdp_uuid;
sdp_uuid.len = 16;
memcpy(sdp_uuid.uu.uuid128, service_uuid, sizeof(sdp_uuid.uu.uuid128));
logu("service_uuid", service_uuid);
*sock_fd = ls->app_fd;
ls->app_fd = -1; //the fd ownelship is transferred to app
status = BT_STATUS_SUCCESS;
l2c_slot_t* ls_doing_sdp = find_l2c_slot_requesting_sdp();
if(ls_doing_sdp == NULL)
{
BTA_JvStartDiscovery((UINT8*)bd_addr->address, 1, &sdp_uuid, (void*)(ls->id));
ls->f.pending_sdp_request = FALSE;
ls->f.doing_sdp_request = TRUE;
}
else
{
ls->f.pending_sdp_request = TRUE;
ls->f.doing_sdp_request = FALSE;
}
btsock_thread_add_fd(pth, ls->fd, BTSOCK_L2CAP, SOCK_THREAD_FD_RD, ls->id);
}
}
unlock_slot(&slot_lock);
return status;
}
bt_status_t btsock_rfc_connect(const bt_bdaddr_t *bd_addr, const uint8_t* service_uuid,
int channel, int* sock_fd, int flags)
{
if(sock_fd == NULL || (service_uuid == NULL && (channel < 1 || channel > 30)))
{
APPL_TRACE_ERROR3("invalid rfc channel:%d or sock_fd:%p, uuid:%p", channel, sock_fd,
service_uuid);
return BT_STATUS_PARM_INVALID;
}
*sock_fd = -1;
if(!is_init_done())
return BT_STATUS_NOT_READY;
int status = BT_STATUS_FAIL;
lock_slot(&slot_lock);
rfc_slot_t* rs = alloc_rfc_slot(bd_addr, NULL, service_uuid, channel, flags, FALSE);
if(rs)
{
if(is_uuid_empty(service_uuid))
{
APPL_TRACE_DEBUG1("connecting to rfcomm channel:%d without service discovery", channel);
if(BTA_JvRfcommConnect(rs->security, rs->role, rs->scn, rs->addr.address,
rfcomm_cback, (void*)rs->id) == BTA_JV_SUCCESS)
{
if(send_app_scn(rs))
{
btsock_thread_add_fd(pth, rs->fd, BTSOCK_RFCOMM,
SOCK_THREAD_FD_RD, rs->id);
*sock_fd = rs->app_fd;
rs->app_fd = -1; //the fd ownership is transferred to app
status = BT_STATUS_SUCCESS;
}
else cleanup_rfc_slot(rs);
}
else cleanup_rfc_slot(rs);
}
else
{
tSDP_UUID sdp_uuid;
sdp_uuid.len = 16;
memcpy(sdp_uuid.uu.uuid128, service_uuid, sizeof(sdp_uuid.uu.uuid128));
logu("service_uuid", service_uuid);
*sock_fd = rs->app_fd;
rs->app_fd = -1; //the fd ownership is transferred to app
status = BT_STATUS_SUCCESS;
rfc_slot_t* rs_doing_sdp = find_rfc_slot_requesting_sdp();
if(rs_doing_sdp == NULL)
{
BTA_JvStartDiscovery((UINT8*)bd_addr->address, 1, &sdp_uuid, (void*)rs->id);
rs->f.pending_sdp_request = FALSE;
rs->f.doing_sdp_request = TRUE;
}
else
{
rs->f.pending_sdp_request = TRUE;
rs->f.doing_sdp_request = FALSE;
}
btsock_thread_add_fd(pth, rs->fd, BTSOCK_RFCOMM, SOCK_THREAD_FD_RD, rs->id);
}
}
unlock_slot(&slot_lock);
return status;
}
static void jv_dm_cback(tBTA_JV_EVT event, tBTA_JV *p_data, void *user_data)
{
uint32_t id = (uint32_t)user_data;
APPL_TRACE_DEBUG2("jv_dm_cback: event:%d, slot id:%d", event, id);
switch(event)
{
case BTA_JV_CREATE_RECORD_EVT:
{
lock_slot(&slot_lock);
rfc_slot_t* rs = find_rfc_slot_by_id(id);
if(rs && create_server_sdp_record(rs))
{
//now start the rfcomm server after sdp & channel # assigned
BTA_JvRfcommStartServer(rs->security, rs->role, rs->scn, MAX_RFC_SESSION, rfcomm_cback,
(void*)rs->id);
}
else if(rs)
{
APPL_TRACE_ERROR1("jv_dm_cback: cannot start server, slot found:%p", rs);
cleanup_rfc_slot(rs);
}
unlock_slot(&slot_lock);
break;
}
case BTA_JV_DISCOVERY_COMP_EVT:
{
rfc_slot_t* rs = NULL;
lock_slot(&slot_lock);
if(p_data->disc_comp.status == BTA_JV_SUCCESS && p_data->disc_comp.scn)
{
APPL_TRACE_DEBUG3("BTA_JV_DISCOVERY_COMP_EVT, slot id:%d, status:%d, scn:%d",
id, p_data->disc_comp.status, p_data->disc_comp.scn);
rs = find_rfc_slot_by_id(id);
if(rs && rs->f.doing_sdp_request)
{
if(BTA_JvRfcommConnect(rs->security, rs->role, p_data->disc_comp.scn, rs->addr.address,
rfcomm_cback, (void*)rs->id) == BTA_JV_SUCCESS)
{
rs->scn = p_data->disc_comp.scn;
rs->f.doing_sdp_request = FALSE;
if(!send_app_scn(rs))
cleanup_rfc_slot(rs);
}
else cleanup_rfc_slot(rs);
}
else if(rs)
{
APPL_TRACE_ERROR3("DISCOVERY_COMP_EVT no pending sdp request, slot id:%d, \
flag sdp pending:%d, flag sdp doing:%d",
id, rs->f.pending_sdp_request, rs->f.doing_sdp_request);
}
}
else
{
APPL_TRACE_ERROR3("DISCOVERY_COMP_EVT slot id:%d, failed to find channle, \
status:%d, scn:%d", id, p_data->disc_comp.status,
p_data->disc_comp.scn);
rs = find_rfc_slot_by_id(id);
if(rs)
cleanup_rfc_slot(rs);
}
rs = find_rfc_slot_by_pending_sdp();
if(rs)
{
APPL_TRACE_DEBUG0("BTA_JV_DISCOVERY_COMP_EVT, start another pending scn sdp request");
tSDP_UUID sdp_uuid;
sdp_uuid.len = 16;
memcpy(sdp_uuid.uu.uuid128, rs->service_uuid, sizeof(sdp_uuid.uu.uuid128));
BTA_JvStartDiscovery((UINT8*)rs->addr.address, 1, &sdp_uuid, (void*)rs->id);
rs->f.pending_sdp_request = FALSE;
rs->f.doing_sdp_request = TRUE;
}
unlock_slot(&slot_lock);
break;
}
static void jv_dm_cback(tBTA_JV_EVT event, tBTA_JV *p_data, void *user_data)
{
uint32_t id = (uint32_t)user_data;
APPL_TRACE_DEBUG("jv_dm_cback: event:%d, slot id:%d", event, id);
switch(event)
{
case BTA_JV_CREATE_RECORD_EVT:
{
lock_slot(&slot_lock);
l2c_slot_t* ls = find_l2c_slot_by_id(id);
if(ls && create_server_sdp_record(ls))
{
//now start the l2cap server after sdp & channel # assigned
BTA_JvL2capStartServer(ls->security, ls->role, ls->psm, 672 , l2cap_cback,
(void*)ls->id);
}
else if(ls)
{
APPL_TRACE_ERROR("jv_dm_cback: cannot start server, slot found:%p", ls);
cleanup_l2c_slot(ls);
}
unlock_slot(&slot_lock);
break;
}
case BTA_JV_DISCOVERY_COMP_EVT:
{
l2c_slot_t* ls = NULL;
lock_slot(&slot_lock);
if(p_data->disc_comp.status == BTA_JV_SUCCESS && p_data->disc_comp.psm)
{
APPL_TRACE_DEBUG("BTA_JV_DISCOVERY_COMP_EVT, slot id:%d, status:%d, psm:%d",
id, p_data->disc_comp.status, p_data->disc_comp.psm);
ls = find_l2c_slot_by_id(id);
if(ls && ls->f.doing_sdp_request)
{
if(BTA_JvL2capConnect(ls->security, ls->role, p_data->disc_comp.psm, 672, ls->addr.address,
l2cap_cback, (void*)ls->id) == BTA_JV_SUCCESS)
{
ls->psm = p_data->disc_comp.psm;
ls->f.doing_sdp_request = FALSE;
if(!send_app_psm(ls))
cleanup_l2c_slot(ls);
}
else cleanup_l2c_slot(ls);
}
else if(ls)
{
APPL_TRACE_ERROR("DISCOVERY_COMP_EVT no pending sdp request, slot id:%d, \
flag sdp pending:%d, flag sdp doing:%d",
id, ls->f.pending_sdp_request, ls->f.doing_sdp_request);
}
}
else
{
APPL_TRACE_ERROR("DISCOVERY_COMP_EVT slot id:%d, failed to find channle, \
status:%d, psm:%d", id, p_data->disc_comp.status,
p_data->disc_comp.psm);
ls = find_l2c_slot_by_id(id);
if(ls)
cleanup_l2c_slot(ls);
}
ls = find_l2c_slot_by_pending_sdp();
if(ls)
{
APPL_TRACE_DEBUG("BTA_JV_DISCOVERY_COMP_EVT, start another pending psm sdp request");
tSDP_UUID sdp_uuid;
sdp_uuid.len = 16;
memcpy(sdp_uuid.uu.uuid128, ls->service_uuid, sizeof(sdp_uuid.uu.uuid128));
BTA_JvStartDiscovery((UINT8*)ls->addr.address, 1, &sdp_uuid, (void*)(ls->id));
ls->f.pending_sdp_request = FALSE;
ls->f.doing_sdp_request = TRUE;
}
unlock_slot(&slot_lock);
break;
}
static int process_slot(struct cache_slot *slot)
{
int err;
err = open_slot(slot);
if (!err && slot->match) {
if (is_expired(slot)) {
if (!lock_slot(slot)) {
/* If the cachefile has been replaced between
* `open_slot` and `lock_slot`, we'll just
* serve the stale content from the original
* cachefile. This way we avoid pruning the
* newly generated slot. The same code-path
* is chosen if fill_slot() fails for some
* reason.
*
* TODO? check if the new slot contains the
* same key as the old one, since we would
* prefer to serve the newest content.
* This will require us to open yet another
* file-descriptor and read and compare the
* key from the new file, so for now we're
* lazy and just ignore the new file.
*/
if (is_modified(slot) || fill_slot(slot)) {
unlock_slot(slot, 0);
close_lock(slot);
} else {
close_slot(slot);
unlock_slot(slot, 1);
slot->cache_fd = slot->lock_fd;
}
}
}
if ((err = print_slot(slot)) != 0) {
cache_log("[cgit] error printing cache %s: %s (%d)\n",
slot->cache_name,
strerror(err),
err);
}
close_slot(slot);
return err;
}
/* If the cache slot does not exist (or its key doesn't match the
* current key), lets try to create a new cache slot for this
* request. If this fails (for whatever reason), lets just generate
* the content without caching it and fool the caller to belive
* everything worked out (but print a warning on stdout).
*/
close_slot(slot);
if ((err = lock_slot(slot)) != 0) {
cache_log("[cgit] Unable to lock slot %s: %s (%d)\n",
slot->lock_name, strerror(err), err);
slot->fn();
return 0;
}
if ((err = fill_slot(slot)) != 0) {
cache_log("[cgit] Unable to fill slot %s: %s (%d)\n",
slot->lock_name, strerror(err), err);
unlock_slot(slot, 0);
close_lock(slot);
slot->fn();
return 0;
}
// We've got a valid cache slot in the lock file, which
// is about to replace the old cache slot. But if we
// release the lockfile and then try to open the new cache
// slot, we might get a race condition with a concurrent
// writer for the same cache slot (with a different key).
// Lets avoid such a race by just printing the content of
// the lock file.
slot->cache_fd = slot->lock_fd;
unlock_slot(slot, 1);
if ((err = print_slot(slot)) != 0) {
cache_log("[cgit] error printing cache %s: %s (%d)\n",
slot->cache_name,
strerror(err),
err);
}
close_slot(slot);
return err;
}
/*
* vas_fault()
* Process a fault within the given address space
*
* Returns 0 if the fault could be resolved, 1 if process needs to
* receive an event. The HAT layer is expected to reliably hold
* a translation added via hat_addtrans() until hat_deletetrans().
* A lost translation would cause the atl to hold multiple entries.
*/
vas_fault(void *vas, void *vaddr, int write)
{
struct pview *pv;
struct pset *ps;
struct perpage *pp;
uint idx, pvidx;
int error = 0;
int wasvalid;
/*
* Easiest--no view matches address
*/
if ((pv = find_pview(vas, vaddr)) == 0) {
return(1);
}
ASSERT_DEBUG(pv->p_valid, "vas_fault: pview !p_valid");
ps = pv->p_set;
/*
* Next easiest--trying to write to read-only view
*/
if (write && (pv->p_prot & PROT_RO)) {
v_lock(&ps->p_lock, SPL0_SAME);
return(1);
}
/*
* Transfer from pset lock to page slot lock
*/
pvidx = btop((char *)vaddr - (char *)pv->p_vaddr);
idx = pvidx + pv->p_off;
pp = find_pp(ps, idx);
lock_slot(ps, pp);
/*
* If the slot is bad, can't fill
*/
if (pp->pp_flags & PP_BAD) {
error = 1;
goto out;
}
/*
* If slot is invalid, request it be filled. Otherwise just
* add a reference.
*/
if (!(pp->pp_flags & PP_V)) {
wasvalid = 0;
if ((*(ps->p_ops->psop_fillslot))(ps, pp, idx)) {
error = 1;
goto out;
}
ASSERT(pp->pp_flags & PP_V, "vm_fault: lost the page");
} else {
wasvalid = 1;
ref_slot(ps, pp, idx);
}
/*
* Break COW association when we write it
*/
if ((pp->pp_flags & PP_COW) && write) {
/*
* May or may not be there. If it is, remove
* its reference from the per-page struct.
*/
if (wasvalid) {
if (pv->p_valid[pvidx]) {
ASSERT(delete_atl(pp, pv, pvidx) == 0,
"vas_fault: p_valid no atl");
pv->p_valid[pvidx] = 0;
}
deref_slot(ps, pp, idx);
}
cow_write(ps, pp, idx);
ASSERT(pp->pp_flags & PP_V, "vm_fault: lost the page 2");
/*
* If not writing to a COW association, then inhibit adding
* the translation if it's already present (another thread
* ran and brought it in for us, probably)
*/
} else if (pv->p_valid[pvidx]) {
deref_slot(ps, pp, idx);
goto out;
}
/*
* With a valid slot, add a hat translation and tabulate
* the entry with an atl.
*/
add_atl(pp, pv, pvidx, 0);
hat_addtrans(pv, vaddr, pp->pp_pfn, pv->p_prot |
((pp->pp_flags & PP_COW) ? PROT_RO : 0));
ASSERT_DEBUG(pv->p_valid[pvidx] == 0, "vas_fault: p_valid went on");
pv->p_valid[pvidx] = 1;
/*
* Free the various things we hold and return
*/
out:
unlock_slot(ps, pp);
return(error);
}