int oprofile_setup(void)
{
int err;
mutex_lock(&start_mutex);
if ((err = alloc_cpu_buffers()))
goto out;
if ((err = alloc_event_buffer()))
goto out1;
if (oprofile_ops.setup && (err = oprofile_ops.setup()))
goto out2;
/* Note even though this starts part of the
* profiling overhead, it's necessary to prevent
* us missing task deaths and eventually oopsing
* when trying to process the event buffer.
*/
if (oprofile_ops.sync_start) {
int sync_ret = oprofile_ops.sync_start();
switch (sync_ret) {
case 0:
goto post_sync;
case 1:
goto do_generic;
case -1:
goto out3;
default:
goto out3;
}
}
do_generic:
if ((err = sync_start()))
goto out3;
post_sync:
is_setup = 1;
mutex_unlock(&start_mutex);
return 0;
out3:
if (oprofile_ops.shutdown)
oprofile_ops.shutdown();
out2:
free_event_buffer();
out1:
free_cpu_buffers();
out:
mutex_unlock(&start_mutex);
return err;
}
static void confchg_fn (
enum totem_configuration_type configuration_type,
const unsigned int *member_list, size_t member_list_entries,
const unsigned int *left_list, size_t left_list_entries,
const unsigned int *joined_list, size_t joined_list_entries,
const struct memb_ring_id *ring_id)
{
int i;
int abort_activate = 0;
/* sync処理中の場合は、abort_activateをセットして、syncを中断させる */
if (sync_in_process == 1) {
abort_activate = 1;
}
/* sync処理中フラグをセット */
sync_in_process = 1;
cs_ipcs_sync_state_changed(sync_in_process);
memcpy (&corosync_ring_id, ring_id, sizeof (struct memb_ring_id));
for (i = 0; i < left_list_entries; i++) {
member_object_left (left_list[i]);
}
for (i = 0; i < joined_list_entries; i++) {
member_object_joined (joined_list[i]);
}
/*
* Call configuration change for all services
*/
/* 各サービスの構成変更ハンドラ(configchg_fn)がある場合は実行する */
/* 2.3.5では、cfg/mon/wd/vsf_ykdサービスに構成変更ハンドラが実装されている */
/* その他のcpgなどには実装されていないので注意 */
for (i = 0; i < service_count; i++) {
if (corosync_service[i] && corosync_service[i]->confchg_fn) {
corosync_service[i]->confchg_fn (configuration_type,
member_list, member_list_entries,
left_list, left_list_entries,
joined_list, joined_list_entries, ring_id);
}
}
if (abort_activate) {
/* sync中に構成変更が発生した場合は、sync_abort()を実行する */
sync_abort ();
}
if (configuration_type == TOTEM_CONFIGURATION_TRANSITIONAL) {
/* 構成していたメンバー情報と離脱したメンバー情報を通知の場合 */
sync_save_transitional (member_list, member_list_entries, ring_id);
}
if (configuration_type == TOTEM_CONFIGURATION_REGULAR) {
/* 新しいメンバー情報と加入したメンバー情報を通知の場合 */
sync_start (member_list, member_list_entries, ring_id);
}
}
static void confchg_fn (
enum totem_configuration_type configuration_type,
const unsigned int *member_list, size_t member_list_entries,
const unsigned int *left_list, size_t left_list_entries,
const unsigned int *joined_list, size_t joined_list_entries,
const struct memb_ring_id *ring_id)
{
int i;
int abort_activate = 0;
if (sync_in_process == 1) {
abort_activate = 1;
}
sync_in_process = 1;
cs_ipcs_sync_state_changed(sync_in_process);
memcpy (&corosync_ring_id, ring_id, sizeof (struct memb_ring_id));
for (i = 0; i < left_list_entries; i++) {
member_object_left (left_list[i]);
}
for (i = 0; i < joined_list_entries; i++) {
member_object_joined (joined_list[i]);
}
/*
* Call configuration change for all services
*/
for (i = 0; i < service_count; i++) {
if (corosync_service[i] && corosync_service[i]->confchg_fn) {
corosync_service[i]->confchg_fn (configuration_type,
member_list, member_list_entries,
left_list, left_list_entries,
joined_list, joined_list_entries, ring_id);
}
}
if (abort_activate) {
sync_abort ();
}
if (configuration_type == TOTEM_CONFIGURATION_TRANSITIONAL) {
sync_save_transitional (member_list, member_list_entries, ring_id);
}
if (configuration_type == TOTEM_CONFIGURATION_REGULAR) {
sync_start (member_list, member_list_entries, ring_id);
}
}
int oprofile_setup(void)
{
int err;
down(&start_sem);
if ((err = alloc_cpu_buffers()))
goto out;
if ((err = alloc_event_buffer()))
goto out1;
if (oprofile_ops.setup && (err = oprofile_ops.setup()))
goto out2;
/* Note even though this starts part of the
* profiling overhead, it's necessary to prevent
* us missing task deaths and eventually oopsing
* when trying to process the event buffer.
*/
if ((err = sync_start()))
goto out3;
is_setup = 1;
up(&start_sem);
return 0;
out3:
if (oprofile_ops.shutdown)
oprofile_ops.shutdown();
out2:
free_event_buffer();
out1:
free_cpu_buffers();
out:
up(&start_sem);
return err;
}
