/* Workhorse function to send response back to the client after UDF execution.
*
* Assumption: The call should be setup properly pointing to the tr.
*
* Special Handling: If it is background udf job do not send any
* response to client
*/
int
send_response(udf_call *call, const char *bin_name, const as_val *val)
{
// NO response if background UDF
if (call->def.type == AS_UDF_OP_BACKGROUND) {
return 0;
}
// Note - this function quietly handles a null val. The response call will
// be given a bin with a name but not 'in use', and it does the right thing.
as_bin stack_bin;
as_bin *bin = &stack_bin;
uint32_t particle_size = as_particle_size_from_asval(val);
static const size_t MAX_STACK_SIZE = 32 * 1024;
uint8_t stack_particle[particle_size > MAX_STACK_SIZE ? 0 : particle_size];
uint8_t *particle_buf = stack_particle;
if (particle_size > MAX_STACK_SIZE) {
particle_buf = (uint8_t *)cf_malloc(particle_size);
if (! particle_buf) {
cf_warning(AS_UDF, "failed alloc for particle size %u", particle_size);
return -1;
}
}
as_transaction *tr = call->tr;
as_namespace *ns = tr->rsv.ns;
as_bin_init(ns, bin, bin_name);
as_bin_particle_stack_from_asval(bin, particle_buf, val);
single_transaction_response(tr, ns, NULL, &bin, 1, tr->generation, tr->void_time, NULL, NULL);
if (particle_buf != stack_particle) {
cf_free(particle_buf);
}
return 0;
} // end send_response()
/*
* Internal function: udf_aerospike_setbin
*
* Parameters:
* offset -- offset of udf bin in updates array
* r -- udf_record to be manipulated
* bname -- name of the bin to be deleted
* val -- value to be updated with
*
* Return value:
* 0 on success
* -1 on failure
*
* Description:
* The function sets the bin with the name
* passed in as parameter to the value, passed as the third parameter.
* Before updating the bin, it is checked if the value can fit in the storage
*
* Synchronization : object lock acquired by the transaction thread executing UDF.
* Partition reservation takes place just before the transaction starts executing
* ( look for as_partition_reserve_udf in thr_tsvc.c )
*
* Callers:
* udf_aerospike__apply_update_atomic
* In this function, if it fails at the time of update, the record is set
* to rollback all the updates till this point. The case where it fails in
* rollback is not handled.
*
* Side Notes:
* i. write_to_device will be set to true on a successful bin update.
* If all the updates from udf_aerospike__apply_update_atomic (including this) are
* successful, the record will be written to disk and reopened so that the rest of
* sets of updates can be applied.
*
* ii. If put in sindex fails, we do not handle it.
*
* TODO make sure anything goes into setbin only if the bin value is
* changed
*/
static int
udf_aerospike_setbin(udf_record * urecord, int offset, const char * bname, const as_val * val, bool is_hidden)
{
if (bname == NULL || bname[0] == 0 ) {
cf_warning(AS_UDF, "udf_aerospike_setbin: Invalid Parameters: [No bin name supplied]... Fail");
return -1;
}
if (as_particle_type_from_asval(val) == AS_PARTICLE_TYPE_NULL) {
cf_warning(AS_UDF, "udf_aerospike_setbin: [%s] called with unusable as_val", bname);
return -3;
}
uint8_t type = as_val_type(val);
if (is_hidden &&
((type != AS_MAP) && (type != AS_LIST))) {
cf_warning(AS_UDF, "udf_aerospike_setbin: Invalid Operation [Hidden %d type Not allowed]... Fail", type);
return -3;
}
as_storage_rd * rd = urecord->rd;
as_transaction *tr = urecord->tr;
as_bin * b = as_bin_get_or_create(rd, bname);
if ( !b ) {
cf_warning(AS_UDF, "udf_aerospike_setbin: Internal Error [Bin %s not found.. Possibly ran out of bins]... Fail", bname);
return -1;
}
bool has_sindex = as_sindex_ns_has_sindex(rd->ns);
if (has_sindex) {
SINDEX_GRLOCK();
}
SINDEX_BINS_SETUP(sbins, 2 * rd->ns->sindex_cnt);
as_sindex * si_arr[2 * rd->ns->sindex_cnt];
int sbins_populated = 0;
int si_arr_index = 0;
const char * set_name = as_index_get_set_name(rd->r, rd->ns);
if (has_sindex ) {
si_arr_index += as_sindex_arr_lookup_by_set_binid_lockfree(rd->ns, set_name, b->id, &si_arr[si_arr_index]);
sbins_populated += as_sindex_sbins_from_bin(rd->ns, set_name, b, &sbins[sbins_populated], AS_SINDEX_OP_DELETE);
}
// we know we are doing an update now, make sure there is particle data,
// set to be 1 wblock size now @TODO!
int ret = 0;
cf_detail(AS_UDF, "udf_setbin: bin %s type %d ", bname, type );
if (rd->ns->storage_data_in_memory) {
if (as_bin_particle_replace_from_asval(b, val) != 0) {
cf_warning(AS_UDF, "udf_aerospike_setbin: [%s] failed to replace particle", bname);
ret = -4;
}
}
else {
uint32_t size = as_particle_size_from_asval(val);
uint8_t *particle_buf = udf__aerospike_get_particle_buf(urecord, &urecord->updates[offset], size);
if (particle_buf) {
as_bin_particle_stack_from_asval(b, particle_buf, val);
}
else {
cf_warning(AS_UDF, "udf_aerospike_setbin: [%s] failed to get space for particle size %u", bname, size);
ret = -4;
}
}
if (is_hidden && ret == 0) {
if (type == AS_LIST) {
as_bin_particle_list_set_hidden(b);
}
else if (type == AS_MAP) {
as_bin_particle_map_set_hidden(b);
}
}
// Update sindex if required
if (has_sindex) {
if (ret) {
SINDEX_GUNLOCK();
if (sbins_populated > 0) {
as_sindex_sbin_freeall(sbins, sbins_populated);
}
as_sindex_release_arr(si_arr, si_arr_index);
return ret;
}
si_arr_index += as_sindex_arr_lookup_by_set_binid_lockfree(rd->ns, set_name, b->id, &si_arr[si_arr_index]);
sbins_populated += as_sindex_sbins_from_bin(rd->ns, set_name, b, &sbins[sbins_populated], AS_SINDEX_OP_INSERT);
SINDEX_GUNLOCK();
if (sbins_populated > 0) {
tr->flags |= AS_TRANSACTION_FLAG_SINDEX_TOUCHED;
as_sindex_update_by_sbin(rd->ns, as_index_get_set_name(rd->r, rd->ns), sbins, sbins_populated, &rd->keyd);
as_sindex_sbin_freeall(sbins, sbins_populated);
}
as_sindex_release_arr(si_arr, si_arr_index);
}
return ret;
} // end udf_aerospike_setbin()
/* Workhorse function to send response back to the client after UDF execution.
*
* Assumption: The call should be setup properly pointing to the tr.
*
* Special Handling: If it is background udf job do not send any
* response to client
*/
int
process_response(udf_call *call, const char *bin_name, const as_val *val, cf_dyn_buf *db)
{
// NO response if background UDF
if (call->def->type == AS_UDF_OP_BACKGROUND) {
return 0;
}
// Note - this function quietly handles a null val. The response call will
// be given a bin with a name but not 'in use', and it does the right thing.
as_bin stack_bin;
as_bin *bin = &stack_bin;
uint32_t particle_size = as_particle_size_from_asval(val);
static const size_t MAX_STACK_SIZE = 32 * 1024;
uint8_t stack_particle[particle_size > MAX_STACK_SIZE ? 0 : particle_size];
uint8_t *particle_buf = stack_particle;
if (particle_size > MAX_STACK_SIZE) {
particle_buf = (uint8_t *)cf_malloc(particle_size);
if (! particle_buf) {
cf_warning(AS_UDF, "failed alloc for particle size %u", particle_size);
return -1;
}
}
as_transaction *tr = call->tr;
as_namespace *ns = tr->rsv.ns;
as_bin_init(ns, bin, bin_name);
as_bin_particle_stack_from_asval(bin, particle_buf, val);
if (db) {
size_t msg_sz = 0;
uint8_t *msgp = (uint8_t *)as_msg_make_response_msg(tr->result_code,
tr->generation, tr->void_time, NULL, &bin, 1, ns, NULL, &msg_sz,
as_transaction_trid(tr), NULL);
if (! msgp) {
cf_warning_digest(AS_RW, &tr->keyd, "{%s} UDF failed to make response msg ", ns->name);
if (particle_buf != stack_particle) {
cf_free(particle_buf);
}
return -1;
}
// Stash the message, to be sent later.
db->buf = msgp;
db->is_stack = false;
db->alloc_sz = msg_sz;
db->used_sz = msg_sz;
}
else {
single_transaction_response(tr, ns, NULL, &bin, 1, tr->generation, tr->void_time, NULL, NULL);
}
if (particle_buf != stack_particle) {
cf_free(particle_buf);
}
return 0;
}
