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Deffered schema/instance updater for transaction

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Vivek Kumar Dutta 2023-08-21 12:19:48 +05:30
parent aa8af74249
commit c4e1784be6
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GPG key ID: 65C818099F37097D
1 changed files with 56 additions and 11 deletions
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59
bbfdmd/ubus/bbfdmd.c
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@ -42,6 +42,9 @@ extern struct list_head json_memhead;
LIST_HEAD(head_registered_service);
static void register_periodic_timers(struct ubus_context *ctx);
static void cancel_periodic_timers(struct ubus_context *ctx);
// Global variables
static unsigned int g_refresh_time = BBF_INSTANCES_UPDATE_TIMEOUT;
static int g_subprocess_level = BBF_SUBPROCESS_DEPTH;
@ -882,6 +885,7 @@ static int bbfdm_transaction_handler(struct ubus_context *ctx, struct ubus_objec
blob_buf_init(&data.bb, 0);
if (is_str_eq(trans_cmd, "start")) {
cancel_periodic_timers(ctx);
ret = transaction_start("API", max_timeout);
if (ret) {
blobmsg_add_u8(&data.bb, "status", true);
@ -891,9 +895,11 @@ static int bbfdm_transaction_handler(struct ubus_context *ctx, struct ubus_objec
transaction_status(&data.bb);
}
} else if (is_str_eq(trans_cmd, "commit")) {
register_periodic_timers(ctx);
ret = transaction_commit(data.trans_id, &data.bb, is_service_restart);
blobmsg_add_u8(&data.bb, "status", (ret == 0));
} else if (is_str_eq(trans_cmd, "abort")) {
register_periodic_timers(ctx);
ret = transaction_abort(data.trans_id, &data.bb);
blobmsg_add_u8(&data.bb, "status", (ret == 0));
} else if (is_str_eq(trans_cmd, "status")) {
@ -1175,8 +1181,10 @@ static void instance_fork_done(struct uloop_process *p, int ret)
INFO("Instance updater(%d) completed, starting a new instance timer", r->process.pid);
struct bbfdm_context *u = (struct bbfdm_context *)r->result;
if (g_refresh_time != 0) {
u->instance_timer.cb = periodic_instance_updater;
uloop_timeout_set(&u->instance_timer, g_refresh_time);
}
free_path_list(&u->old_instances);
async_req_free(r);
}
@ -1215,8 +1223,10 @@ static int fork_instance_checker(struct bbfdm_context *u)
r = async_req_new();
if (r == NULL) {
ERR("Error allocating instance req");
if (g_refresh_time != 0) {
u->instance_timer.cb = periodic_instance_updater;
uloop_timeout_set(&u->instance_timer, g_refresh_time);
}
free_path_list(&u->old_instances);
goto err_out;
}
@ -1260,6 +1270,10 @@ static void periodic_instance_updater(struct uloop_timeout *t)
{
struct bbfdm_context *u;
if (g_refresh_time == 0) {
return; // periodic refresh disabled
}
u = container_of(t, struct bbfdm_context, instance_timer);
if (u == NULL) {
ERR("Failed to get the bbfdm context");
@ -1441,6 +1455,43 @@ static void lookup_event_cb(struct ubus_context *ctx,
}
}
static void cancel_periodic_timers(struct ubus_context *ctx)
{
struct bbfdm_context *u;
u = container_of(ctx, struct bbfdm_context, ubus_ctx);
if (u == NULL) {
ERR("Failed to get the bbfdm context");
return;
}
DEBUG("Cancelling schema_timer and instance_timer");
uloop_timeout_cancel(&u->schema_timer);
if (g_refresh_time != 0) {
uloop_timeout_cancel(&u->instance_timer);
}
}
static void register_periodic_timers(struct ubus_context *ctx)
{
struct bbfdm_context *u;
u = container_of(ctx, struct bbfdm_context, ubus_ctx);
if (u == NULL) {
ERR("Failed to get the bbfdm context");
return;
}
DEBUG("Register schema_timer %d and instance_timer %d", BBF_SCHEMA_UPDATE_TIMEOUT, g_refresh_time);
u->schema_timer.cb = periodic_schema_updater;
uloop_timeout_set(&u->schema_timer, BBF_SCHEMA_UPDATE_TIMEOUT);
if (g_refresh_time != 0) {
u->instance_timer.cb = periodic_instance_updater;
uloop_timeout_set(&u->instance_timer, g_refresh_time);
}
}
int main(int argc, char **argv)
{
struct bbfdm_context bbfdm_ctx;
@ -1504,13 +1555,7 @@ int main(int argc, char **argv)
if (err != 0)
goto exit;
bbfdm_ctx.schema_timer.cb = periodic_schema_updater;
uloop_timeout_set(&bbfdm_ctx.schema_timer, BBF_SCHEMA_UPDATE_TIMEOUT);
// initial timer should be bigger to give more space to other applications to initialize
bbfdm_ctx.instance_timer.cb = periodic_instance_updater;
uloop_timeout_set(&bbfdm_ctx.instance_timer, 3 * g_refresh_time);
register_periodic_timers(&bbfdm_ctx.ubus_ctx);
} else { // It's a micro-service instance
err = bbfdm_init(&bbfdm_ctx.ubus_ctx);