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#include <malloc.h>
#include <string.h>
#include "alsa-softmixer.h"
#include "alsa-transaction.h"
#include "wrap-json.h"
static void AlsaMixerTransactionFree(AlsaMixerTransaction * transaction) {
free((char*)transaction->uid);
free(transaction);
}
AlsaMixerTransaction * AlsaMixerTransactionNew(struct SoftMixerT_ * mixer, const char * uid) {
AlsaMixerTransaction * transaction = (AlsaMixerTransaction *) malloc(sizeof(AlsaMixerTransaction));
if (transaction == NULL)
goto fail;
AFB_API_INFO(mixer->api, "-------- NEW TRANSACTION %s --------", uid);
CDS_INIT_LIST_HEAD(&transaction->item_list);
transaction->uid = strdup(uid);
if (transaction->uid == NULL) {
goto fail_list;
}
transaction->mixer = mixer;
cds_list_add(&transaction->transaction_node, &mixer->transactionList);
return transaction;
fail_list:
free(transaction);
fail:
return NULL;
}
void AlsaMixerTransactionObjectDelete(AlsaMixerTransaction* transaction, void * object, bool destructor) {
AlsaMixerTransactionDataItem *item, *tmp;
cds_list_for_each_entry_safe(item, tmp, &transaction->item_list, list_entry)
if (item->object == object) {
if (destructor && item->destructor)
item->destructor(transaction->mixer, item->object);
cds_list_del(&item->list_entry);
free(item);
}
}
bool AlsaMixerTransactionObjectAdd(AlsaMixerTransaction* list, void* object, AlsaTransactionDestructor destructor) {
bool ret = false;
AlsaMixerTransactionDataItem * newItem = NULL;
if (!list)
goto fail;
newItem = (AlsaMixerTransactionDataItem *) malloc(sizeof(AlsaMixerTransactionDataItem));
if (newItem == NULL)
goto fail;
CDS_INIT_LIST_HEAD(&newItem->list_entry);
newItem->object = object;
newItem->destructor = destructor;
cds_list_add(&newItem->list_entry, &list->item_list);
ret = true;
fail:
return ret;
}
bool AlsaMixerTransactionObjectAddTail(AlsaMixerTransaction* list, void* object, AlsaTransactionDestructor destructor) {
bool ret = false;
AlsaMixerTransactionDataItem * newItem = NULL;
if (!list)
goto fail;
newItem = (AlsaMixerTransactionDataItem *) malloc(sizeof(AlsaMixerTransactionDataItem));
if (newItem == NULL)
goto fail;
CDS_INIT_LIST_HEAD(&newItem->list_entry);
newItem->object = object;
newItem->destructor = destructor;
cds_list_add_tail(&newItem->list_entry, &list->item_list);
ret = true;
fail:
return ret;
}
static void AlsaMixerTransactionDoCleanup(AlsaMixerTransaction* transaction) {
AlsaMixerTransactionDataItem * item, *sav;
AFB_API_INFO(transaction->mixer->api, "%s for transaction %s", __func__, transaction->uid);
cds_list_for_each_entry_safe(item, sav, &transaction->item_list, list_entry) {
if (item->destructor)
item->destructor(transaction->mixer, item->object);
cds_list_del(&item->list_entry);
free(item);
}
AFB_API_INFO(transaction->mixer->api, "%s for transaction %s .. DONE !", __func__, transaction->uid);
}
void AlsaMixerTransactionVerbCB(afb_req_t request) {
json_object *responseJ = NULL;
AlsaMixerTransaction *transaction = (AlsaMixerTransaction*) afb_req_get_vcbdata(request);
json_object *argsJ = afb_req_json(request);
int error;
char * action = NULL;
const char * uid = NULL;
error = wrap_json_unpack(argsJ, "{ss!}",
"action", &action);
if (error) {
afb_req_fail_f(request, "missing action", "%s: missing 'action' field: %s", transaction->uid, json_object_get_string(argsJ));
goto fail;
}
uid = strdup(transaction->uid);
if (!uid) {
SOFTMIXER_NOMEM(transaction->mixer->api);
goto fail;
}
if (strcmp(action, "remove") == 0) {
error = afb_api_del_verb(transaction->mixer->api, transaction->uid, (void**)NULL);
if (error) {
afb_req_fail(request, "verb deletion" , "verb was not removed");
goto fail;
}
AlsaMixerTransactionDelete(transaction);
} else {
afb_req_fail_f(request, "unsupported action", "%s: unsupported action %s (supported ones are ['remove']", transaction->uid, action);
goto fail;
}
responseJ=json_object_new_object();
json_object_object_add(responseJ, "result", json_object_new_string("OK"));
afb_req_success(request, responseJ, uid);
fail:
free((char*)uid);
return;
}
void AlsaMixerTransactionDelete(AlsaMixerTransaction * transaction) {
AlsaMixerTransactionDoCleanup(transaction);
// remove this transaction for the list of mixer
cds_list_del(&transaction->transaction_node);
AlsaMixerTransactionFree(transaction);
}
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