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#include "mpack.h"
#include "swarmkv_utils.h"
#include "swarmkv_message.h"
#include <string.h>
static struct swarmkv_reply *deserialize_reply(mpack_node_t reply_node)
{
struct swarmkv_reply *reply = NULL;
mpack_node_t item, array_node, vtype_item;
item = mpack_node_map_cstr(reply_node, "t");
size_t i = 0;
enum swarmkv_reply_type type = mpack_node_int(item);
switch (type)
{
case SWARMKV_REPLY_INTEGER:
item = mpack_node_map_cstr(reply_node, "int");
reply = swarmkv_reply_new_integer(mpack_node_i64(item));
break;
case SWARMKV_REPLY_DOUBLE:
item = mpack_node_map_cstr(reply_node, "dval");
reply = swarmkv_reply_new_double(mpack_node_double(item));
break;
case SWARMKV_REPLY_STRING:
case SWARMKV_REPLY_ERROR:
case SWARMKV_REPLY_STATUS:
case SWARMKV_REPLY_NODE:
item = mpack_node_map_cstr(reply_node, "str");
reply = swarmkv_reply_new_string(mpack_node_str(item), mpack_node_strlen(item));
reply->type = type; // dirty here
break;
case SWARMKV_REPLY_VERBATIM:
item = mpack_node_map_cstr(reply_node, "str");
vtype_item = mpack_node_map_cstr(reply_node, "vtype");
reply = swarmkv_reply_new_verbatim(mpack_node_str(item), mpack_node_strlen(item), mpack_node_str(vtype_item));
break;
case SWARMKV_REPLY_NIL:
reply = swarmkv_reply_new_nil();
break;
case SWARMKV_REPLY_ARRAY:
array_node = mpack_node_map_cstr(reply_node, "arr");
reply = swarmkv_reply_new_array(mpack_node_array_length(array_node));
for (i = 0; i < reply->n_element; i++)
{
item = mpack_node_array_at(array_node, i);
reply->elements[i] = deserialize_reply(item);
}
break;
default:
assert(0);
break;
}
return reply;
}
static struct swarmkv_reply *swarmkv_reply_deserialize(const char *blob, size_t size)
{
mpack_tree_t tree;
mpack_tree_init_data(&tree, blob, size);
mpack_tree_parse(&tree);
mpack_node_t root = mpack_tree_root(&tree);
struct swarmkv_reply *reply = NULL;
reply = deserialize_reply(root);
if (mpack_tree_destroy(&tree) != mpack_ok)
{
fprintf(stderr, "An error occurred decoding a reply blob!\n");
assert(0);
swarmkv_reply_free(reply);
return NULL;
}
return reply;
}
static struct swarmkv_cmd *swarmkv_cmd_deserialize(const char *blob, size_t size)
{
mpack_tree_t tree;
mpack_tree_init_data(&tree, blob, size);
mpack_tree_parse(&tree);
mpack_node_t item, array_node;
mpack_node_t root = mpack_tree_root(&tree);
struct swarmkv_cmd *cmd = NULL;
const char *arg = NULL;
size_t sz = 0;
node_t caller;
item = mpack_node_map_cstr(root, "caller");
node_init_from_string(&caller, mpack_node_str(item), mpack_node_strlen(item));
assert(node_sanity(&caller));
// assert(sz==sizeof(node_t));
array_node = mpack_node_map_cstr(root, "argv");
cmd = swarmkv_cmd_new(mpack_node_array_length(array_node), &caller);
for (size_t i = 0; i < cmd->argc; i++)
{
item = mpack_node_array_at(array_node, i);
arg = mpack_node_str(item);
sz = mpack_node_strlen(item);
cmd->argv[i] = sdsnewlen(arg, sz);
}
if (mpack_tree_destroy(&tree) != mpack_ok)
{
fprintf(stderr, "An error occurred decoding a cmd blob!\n");
assert(0);
swarmkv_cmd_free(cmd);
return NULL;
}
return cmd;
}
static void swarmkv_reply_serialize(const struct swarmkv_reply *reply, char **blob, size_t *blob_sz)
{
char *root_mpack_buff = NULL, *element_mpack_buff = NULL;
size_t root_mpack_sz = 0, element_mpack_size, i = 0;
mpack_writer_t writer;
mpack_writer_init_growable(&writer, &root_mpack_buff, &root_mpack_sz);
mpack_build_map(&writer);
mpack_write_cstr(&writer, "t");
mpack_write_int(&writer, reply->type);
switch (reply->type)
{
case SWARMKV_REPLY_INTEGER:
mpack_write_cstr(&writer, "int");
mpack_write_i64(&writer, reply->integer);
break;
case SWARMKV_REPLY_DOUBLE:
mpack_write_cstr(&writer, "dval");
mpack_write_double(&writer, reply->dval);
break;
case SWARMKV_REPLY_STRING:
case SWARMKV_REPLY_STATUS:
case SWARMKV_REPLY_ERROR:
case SWARMKV_REPLY_NODE:
mpack_write_cstr(&writer, "str");
mpack_write_str(&writer, reply->str, reply->len);
break;
case SWARMKV_REPLY_VERBATIM:
mpack_write_cstr(&writer, "str");
mpack_write_str(&writer, reply->str, reply->len);
mpack_write_cstr(&writer, "vtype");
mpack_write_cstr(&writer, reply->vtype);
break;
case SWARMKV_REPLY_NIL:
break;
case SWARMKV_REPLY_ARRAY:
mpack_write_cstr(&writer, "arr");
mpack_build_array(&writer);
for (i = 0; i < reply->n_element; i++)
{
swarmkv_reply_serialize(reply->elements[i], &element_mpack_buff, &element_mpack_size);
mpack_write_object_bytes(&writer, element_mpack_buff, element_mpack_size);
free(element_mpack_buff);
element_mpack_size = 0;
}
mpack_complete_array(&writer);
break;
default:
assert(0);
}
mpack_complete_map(&writer);
if (mpack_writer_destroy(&writer) != mpack_ok)
{
fprintf(stderr, "An error occurred encoding the reply!\n");
return;
}
*blob = root_mpack_buff;
*blob_sz = root_mpack_sz;
return;
}
static void swarmkv_cmd_serialize(const struct swarmkv_cmd *cmd, char **blob, size_t *blob_sz)
{
char *root_mpack_buff = NULL;
size_t root_mpack_sz = 0;
mpack_writer_t writer;
size_t i = 0;
mpack_writer_init_growable(&writer, &root_mpack_buff, &root_mpack_sz);
mpack_build_map(&writer);
mpack_write_cstr(&writer, "caller");
mpack_write_cstr(&writer, node_addr2cstr(&cmd->caller));
mpack_write_cstr(&writer, "argv");
mpack_build_array(&writer);
for (i = 0; i < cmd->argc; i++)
{
mpack_write_str(&writer, cmd->argv[i], (uint32_t)sdslen(cmd->argv[i]));
}
mpack_complete_array(&writer);
mpack_complete_map(&writer);
if (mpack_writer_destroy(&writer) != mpack_ok)
{
fprintf(stderr, "An error occurred encoding the cmd!\n");
return;
}
*blob = root_mpack_buff;
*blob_sz = root_mpack_sz;
return;
}
struct swarmkv_msg *swarmkv_msg_new_by_cmd(const struct swarmkv_cmd *cmd, long long sequence)
{
struct swarmkv_msg *msg = ALLOC(struct swarmkv_msg, 1);
msg->type = SWARMKV_MSG_TYPE_CMD;
msg->sequence = sequence;
msg->cmd = swarmkv_cmd_dup(cmd);
return msg;
}
struct swarmkv_msg *swarmkv_msg_new_by_reply(const struct swarmkv_reply *reply, long long sequence)
{
struct swarmkv_msg *msg = ALLOC(struct swarmkv_msg, 1);
msg->type = SWARMKV_MSG_TYPE_REPLY;
msg->sequence = sequence;
msg->reply = swarmkv_reply_dup(reply);
return msg;
}
void swarmkv_msg_free(struct swarmkv_msg *msg)
{
if (msg->type == SWARMKV_MSG_TYPE_CMD)
{
swarmkv_cmd_free(msg->cmd);
msg->cmd = NULL;
}
else
{
swarmkv_reply_free(msg->reply);
msg->reply = NULL;
}
free(msg);
return;
}
#define SWARMKV_MSG_HDR_SIZE offsetof(struct swarmkv_msg, cmd)
void swarmkv_msg_serialize(const struct swarmkv_msg *msg, char **blob, size_t *blob_sz)
{
char *payload = NULL;
size_t payload_len = 0;
if (msg->type == SWARMKV_MSG_TYPE_CMD)
{
assert(msg->cmd->argc > 0);
swarmkv_cmd_serialize(msg->cmd, &payload, &payload_len);
}
else
{
assert(msg->reply != NULL);
swarmkv_reply_serialize(msg->reply, &payload, &payload_len);
}
*blob = ALLOC(char, SWARMKV_MSG_HDR_SIZE + payload_len);
memcpy(*blob, msg, SWARMKV_MSG_HDR_SIZE);
memcpy(*blob + SWARMKV_MSG_HDR_SIZE, payload, payload_len);
free(payload);
*blob_sz = SWARMKV_MSG_HDR_SIZE + payload_len;
return;
}
struct swarmkv_msg *swarmkv_msg_deserialize(const char *blob, size_t size)
{
const char *payload = blob + SWARMKV_MSG_HDR_SIZE;
size_t payload_len = size - SWARMKV_MSG_HDR_SIZE;
struct swarmkv_msg *msg = ALLOC(struct swarmkv_msg, 1);
memcpy(msg, blob, SWARMKV_MSG_HDR_SIZE);
if (msg->type == SWARMKV_MSG_TYPE_CMD)
{
msg->cmd = swarmkv_cmd_deserialize(payload, payload_len);
}
else
{
msg->reply = swarmkv_reply_deserialize(payload, payload_len);
}
return msg;
}
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