LIBCOUCHBASE_API
libcouchbase_error_t libcouchbase_mtouch_by_key(libcouchbase_t instance,
const void *command_cookie,
const void *hashkey,
libcouchbase_size_t nhashkey,
libcouchbase_size_t num_keys,
const void * const *keys,
const libcouchbase_size_t *nkey,
const libcouchbase_time_t *exp)
{
libcouchbase_server_t *server = NULL;
libcouchbase_size_t ii;
int vb, idx;
/* we need a vbucket config before we can start getting data.. */
if (instance->vbucket_config == NULL) {
return libcouchbase_synchandler_return(instance, LIBCOUCHBASE_ETMPFAIL);
}
if (nhashkey != 0) {
(void)vbucket_map(instance->vbucket_config, hashkey, nhashkey, &vb, &idx);
server = instance->servers + (libcouchbase_size_t)idx;
}
for (ii = 0; ii < num_keys; ++ii) {
protocol_binary_request_touch req;
if (nhashkey == 0) {
(void)vbucket_map(instance->vbucket_config, keys[ii], nkey[ii], &vb, &idx);
server = instance->servers + (libcouchbase_size_t)idx;
}
memset(&req, 0, sizeof(req));
req.message.header.request.magic = PROTOCOL_BINARY_REQ;
req.message.header.request.opcode = PROTOCOL_BINARY_CMD_TOUCH;
req.message.header.request.extlen = 4;
req.message.header.request.keylen = ntohs((libcouchbase_uint16_t)nkey[ii]);
req.message.header.request.datatype = PROTOCOL_BINARY_RAW_BYTES;
req.message.header.request.vbucket = ntohs((libcouchbase_uint16_t)vb);
req.message.header.request.bodylen = ntohl((libcouchbase_uint32_t)(nkey[ii]) + 4);
req.message.header.request.opaque = ++instance->seqno;
/* @todo fix the relative time! */
req.message.body.expiration = htonl((libcouchbase_uint32_t)exp[ii]);
libcouchbase_server_start_packet(server, command_cookie,
req.bytes, sizeof(req.bytes));
libcouchbase_server_write_packet(server, keys[ii], nkey[ii]);
libcouchbase_server_end_packet(server);
}
libcouchbase_server_send_packets(server);
return libcouchbase_synchandler_return(instance, LIBCOUCHBASE_SUCCESS);
}
static lcb_error_t get_kvb(int mode, lcb_t instance, int cmd, void *arg)
{
struct lcb_cntl_vbinfo_st *vbi = arg;
if (mode != LCB_CNTL_GET) {
return LCB_NOT_SUPPORTED;
}
if (!instance->vbucket_config) {
return LCB_CLIENT_ETMPFAIL;
}
if (vbi->version != 0) {
return LCB_EINVAL;
}
vbucket_map(instance->vbucket_config,
vbi->v.v0.key,
vbi->v.v0.nkey,
&vbi->v.v0.vbucket,
&vbi->v.v0.server_index);
(void)cmd;
return LCB_SUCCESS;
}
LIBCOUCHBASE_API
lcb_error_t lcb_unlock(lcb_t instance,
const void *command_cookie,
lcb_size_t num,
const lcb_unlock_cmd_t *const *items)
{
lcb_size_t ii;
/* we need a vbucket config before we can start getting data.. */
if (instance->vbucket_config == NULL) {
switch (instance->type) {
case LCB_TYPE_CLUSTER:
return lcb_synchandler_return(instance, LCB_EBADHANDLE);
case LCB_TYPE_BUCKET:
default:
return lcb_synchandler_return(instance, LCB_CLIENT_ETMPFAIL);
}
}
for (ii = 0; ii < num; ++ii) {
lcb_server_t *server;
protocol_binary_request_no_extras req;
int vb, idx;
const void *hashkey = items[ii]->v.v0.hashkey;
lcb_size_t nhashkey = items[ii]->v.v0.nhashkey;
const void *key = items[ii]->v.v0.key;
lcb_size_t nkey = items[ii]->v.v0.nkey;
lcb_cas_t cas = items[ii]->v.v0.cas;
if (nhashkey == 0) {
hashkey = key;
nhashkey = nkey;
}
(void)vbucket_map(instance->vbucket_config, hashkey, nhashkey,
&vb, &idx);
if (idx < 0 || idx > (int)instance->nservers) {
return lcb_synchandler_return(instance, LCB_NO_MATCHING_SERVER);
}
server = instance->servers + idx;
memset(&req, 0, sizeof(req));
req.message.header.request.magic = PROTOCOL_BINARY_REQ;
req.message.header.request.keylen = ntohs((lcb_uint16_t)nkey);
req.message.header.request.datatype = PROTOCOL_BINARY_RAW_BYTES;
req.message.header.request.vbucket = ntohs((lcb_uint16_t)vb);
req.message.header.request.bodylen = ntohl((lcb_uint32_t)(nkey));
req.message.header.request.cas = cas;
req.message.header.request.opaque = ++instance->seqno;
req.message.header.request.opcode = CMD_UNLOCK_KEY;
lcb_server_start_packet(server, command_cookie, req.bytes,
sizeof(req.bytes));
lcb_server_write_packet(server, key, nkey);
lcb_server_end_packet(server);
lcb_server_send_packets(server);
}
return lcb_synchandler_return(instance, LCB_SUCCESS);
}
int main(void) {
char *root = getenv("srcdir");
DIR *dp;
const char *host;
char buffer[PATH_MAX];
char key[NKEY];
int idx, i, len;
struct dirent *de;
VBUCKET_CONFIG_HANDLE vb;
unsigned char checksum[16];
unsigned char expected[16];
void *ctx;
if (root != NULL) {
sprintf(buffer, "%s/tests/config", root);
dp = opendir(buffer);
if (dp == NULL) {
fprintf(stderr, "Skipping ketama check\nFailed to open %s: %s\n",
buffer, strerror(errno));
return 0;
}
while ((de = readdir(dp)) != NULL) {
if (strncmp(de->d_name, "ketama", 6) == 0 && strchr(de->d_name, '.') == NULL) {
sprintf(buffer, "%s/tests/config/%s", root, de->d_name);
fprintf(stderr, "Running ketama test for: %s\n", de->d_name);
vb = vbucket_config_parse_file(buffer);
assert(vb != NULL);
/* check if it conforms to libketama results */
sprintf(buffer, "%s/tests/config/%s.md5sum", root, de->d_name);
read_checksum(buffer, expected);
memset(checksum, 0, 16);
ctx = NULL;
for (i = 0; i < 1000000; i++) {
len = sprintf(key, "%d", i);
vbucket_map(vb, key, len, NULL, &idx);
host = vbucket_config_get_server(vb, idx);
ctx = hash_md5_update(ctx, host, strlen(host));
}
hash_md5_final(ctx, checksum);
for (i = 0; i < 16; i++) {
assert(checksum[i] == expected[i]);
}
vbucket_config_destroy(vb);
}
}
closedir(dp);
}
return 0;
}
static libcouchbase_error_t libcouchbase_single_get(libcouchbase_t instance,
const void *command_cookie,
const void *hashkey,
libcouchbase_size_t nhashkey,
const void *key,
const libcouchbase_size_t nkey,
const libcouchbase_time_t *exp,
int lock)
{
libcouchbase_server_t *server;
protocol_binary_request_gat req;
int vb, idx;
libcouchbase_size_t nbytes;
if (nhashkey == 0) {
nhashkey = nkey;
hashkey = key;
}
(void)vbucket_map(instance->vbucket_config, hashkey, nhashkey, &vb, &idx);
if (idx < 0 || idx > (int)instance->nservers) {
/* the config says that there is no server yet at that position (-1) */
return libcouchbase_synchandler_return(instance, LIBCOUCHBASE_NETWORK_ERROR);
}
server = instance->servers + idx;
memset(&req, 0, sizeof(req));
req.message.header.request.magic = PROTOCOL_BINARY_REQ;
req.message.header.request.keylen = ntohs((libcouchbase_uint16_t)nkey);
req.message.header.request.datatype = PROTOCOL_BINARY_RAW_BYTES;
req.message.header.request.vbucket = ntohs((libcouchbase_uint16_t)vb);
req.message.header.request.bodylen = ntohl((libcouchbase_uint32_t)(nkey));
req.message.header.request.opaque = ++instance->seqno;
if (!exp) {
req.message.header.request.opcode = PROTOCOL_BINARY_CMD_GET;
nbytes = sizeof(req.bytes) - 4;
} else {
req.message.header.request.opcode = PROTOCOL_BINARY_CMD_GAT;
req.message.header.request.extlen = 4;
req.message.body.expiration = ntohl((libcouchbase_uint32_t)exp[0]);
req.message.header.request.bodylen = ntohl((libcouchbase_uint32_t)(nkey) + 4);
nbytes = sizeof(req.bytes);
}
if (lock) {
/* the expiration is optional for GETL command */
req.message.header.request.opcode = CMD_GET_LOCKED;
}
libcouchbase_server_start_packet(server, command_cookie, req.bytes, nbytes);
libcouchbase_server_write_packet(server, key, nkey);
libcouchbase_server_end_packet(server);
libcouchbase_server_send_packets(server);
return libcouchbase_synchandler_return(instance, LIBCOUCHBASE_SUCCESS);
}
LIBCOUCHBASE_API
libcouchbase_error_t libcouchbase_remove_by_key(libcouchbase_t instance,
const void *command_cookie,
const void *hashkey,
libcouchbase_size_t nhashkey,
const void *key, libcouchbase_size_t nkey,
libcouchbase_cas_t cas)
{
libcouchbase_server_t *server;
protocol_binary_request_delete req;
int vb, idx;
/* we need a vbucket config before we can start removing the item.. */
if (instance->vbucket_config == NULL) {
return libcouchbase_synchandler_return(instance, LIBCOUCHBASE_ETMPFAIL);
}
if (nhashkey == 0) {
nhashkey = nkey;
hashkey = key;
}
(void)vbucket_map(instance->vbucket_config, hashkey, nhashkey, &vb, &idx);
if (idx < 0 || idx > (int)instance->nservers) {
/* the config says that there is no server yet at that position (-1) */
return libcouchbase_synchandler_return(instance, LIBCOUCHBASE_NETWORK_ERROR);
}
server = instance->servers + idx;
memset(&req, 0, sizeof(req));
req.message.header.request.magic = PROTOCOL_BINARY_REQ;
req.message.header.request.opcode = PROTOCOL_BINARY_CMD_DELETE;
req.message.header.request.keylen = ntohs((libcouchbase_uint16_t)nkey);
req.message.header.request.extlen = 0;
req.message.header.request.datatype = PROTOCOL_BINARY_RAW_BYTES;
req.message.header.request.vbucket = ntohs((libcouchbase_uint16_t)vb);
req.message.header.request.bodylen = ntohl((libcouchbase_uint32_t)nkey);
req.message.header.request.opaque = ++instance->seqno;
req.message.header.request.cas = cas;
libcouchbase_server_start_packet(server, command_cookie,
req.bytes, sizeof(req.bytes));
libcouchbase_server_write_packet(server, key, nkey);
libcouchbase_server_end_packet(server);
libcouchbase_server_send_packets(server);
return libcouchbase_synchandler_return(instance, LIBCOUCHBASE_SUCCESS);
}
int main(void) {
char *root = getenv("srcdir");
const char *host;
char buffer[FILENAME_MAX];
char key[NKEY];
int idx, i, len, ff;
VBUCKET_CONFIG_HANDLE vb;
unsigned char checksum[16];
unsigned char expected[16];
void *ctx;
if (root != NULL) {
for (ff = 0; test_cases[ff] != NULL; ++ff) {
snprintf(buffer, FILENAME_MAX, "%s/tests/config/%s", root, test_cases[ff]);
fprintf(stderr, "Running ketama test for: %s\n", test_cases[ff]);
vb = vbucket_config_create();
assert(vbucket_config_parse(vb, LIBVBUCKET_SOURCE_FILE, buffer) == 0);
/* check if it conforms to libketama results */
snprintf(buffer, FILENAME_MAX,"%s/tests/config/%s.md5sum", root, test_cases[ff]);
read_checksum(buffer, expected);
memset(checksum, 0, 16);
ctx = NULL;
for (i = 0; i < 1000000; i++) {
len = snprintf(key, NKEY, "%d", i);
vbucket_map(vb, key, len, NULL, &idx);
host = vbucket_config_get_server(vb, idx);
ctx = hash_md5_update(ctx, host, strlen(host));
}
hash_md5_final(ctx, checksum);
for (i = 0; i < 16; i++) {
assert(checksum[i] == expected[i]);
}
vbucket_config_destroy(vb);
}
}
exit(EXIT_SUCCESS);
}
LIBCOUCHBASE_API
libcouchbase_error_t libcouchbase_mget_by_key(libcouchbase_t instance,
const void *command_cookie,
const void *hashkey,
libcouchbase_size_t nhashkey,
libcouchbase_size_t num_keys,
const void * const *keys,
const libcouchbase_size_t *nkey,
const libcouchbase_time_t *exp)
{
libcouchbase_server_t *server = NULL;
protocol_binary_request_noop noop;
libcouchbase_size_t ii, *affected_servers = NULL;
int vb, idx;
struct server_info_st *servers = NULL;
/* we need a vbucket config before we can start getting data.. */
if (instance->vbucket_config == NULL) {
return libcouchbase_synchandler_return(instance, LIBCOUCHBASE_ETMPFAIL);
}
if (num_keys == 1) {
return libcouchbase_single_get(instance, command_cookie, hashkey,
nhashkey, keys[0], nkey[0], exp);
}
affected_servers = calloc(instance->nservers, sizeof(libcouchbase_size_t));
if (affected_servers == NULL) {
return libcouchbase_synchandler_return(instance, LIBCOUCHBASE_ENOMEM);
}
if (nhashkey != 0) {
(void)vbucket_map(instance->vbucket_config, hashkey, nhashkey, &vb, &idx);
if (idx < 0 || (libcouchbase_size_t)idx > instance->nservers) {
/* the config says that there is no server yet at that position (-1) */
return libcouchbase_synchandler_return(instance, LIBCOUCHBASE_NETWORK_ERROR);
}
server = instance->servers + (libcouchbase_size_t)idx;
affected_servers[idx]++;
} else {
servers = malloc(num_keys * sizeof(struct server_info_st));
if (servers == NULL) {
return libcouchbase_synchandler_return(instance, LIBCOUCHBASE_ENOMEM);
}
for (ii = 0; ii < num_keys; ++ii) {
(void)vbucket_map(instance->vbucket_config, keys[ii], nkey[ii], &servers[ii].vb, &servers[ii].idx);
if (servers[ii].idx < 0 || (libcouchbase_size_t)servers[ii].idx > instance->nservers) {
/* the config says that there is no server yet at that position (-1) */
free(servers);
return libcouchbase_synchandler_return(instance, LIBCOUCHBASE_NETWORK_ERROR);
}
affected_servers[servers[ii].idx]++;
}
}
for (ii = 0; ii < num_keys; ++ii) {
protocol_binary_request_gat req;
if (nhashkey == 0) {
server = instance->servers + (libcouchbase_size_t)servers[ii].idx;
vb = servers[ii].vb;
}
memset(&req, 0, sizeof(req));
req.message.header.request.magic = PROTOCOL_BINARY_REQ;
req.message.header.request.keylen = ntohs((libcouchbase_uint16_t)nkey[ii]);
req.message.header.request.datatype = PROTOCOL_BINARY_RAW_BYTES;
req.message.header.request.vbucket = ntohs((libcouchbase_uint16_t)vb);
req.message.header.request.bodylen = ntohl((libcouchbase_uint32_t)(nkey[ii]));
req.message.header.request.opaque = ++instance->seqno;
if (!exp) {
req.message.header.request.opcode = PROTOCOL_BINARY_CMD_GETQ;
libcouchbase_server_start_packet(server, command_cookie, req.bytes,
sizeof(req.bytes) - 4);
} else {
req.message.header.request.opcode = PROTOCOL_BINARY_CMD_GATQ;
req.message.header.request.extlen = 4;
req.message.body.expiration = ntohl((libcouchbase_uint32_t)exp[ii]);
req.message.header.request.bodylen = ntohl((libcouchbase_uint32_t)(nkey[ii]) + 4);
libcouchbase_server_start_packet(server, command_cookie, req.bytes,
sizeof(req.bytes));
}
libcouchbase_server_write_packet(server, keys[ii], nkey[ii]);
libcouchbase_server_end_packet(server);
}
free(servers);
memset(&noop, 0, sizeof(noop));
noop.message.header.request.magic = PROTOCOL_BINARY_REQ;
noop.message.header.request.opcode = PROTOCOL_BINARY_CMD_NOOP;
noop.message.header.request.datatype = PROTOCOL_BINARY_RAW_BYTES;
/*
** We don't know which server we sent the data to, so examine
** where to send the noop
*/
for (ii = 0; ii < instance->nservers; ++ii) {
if (affected_servers[ii]) {
server = instance->servers + ii;
noop.message.header.request.opaque = ++instance->seqno;
libcouchbase_server_complete_packet(server, command_cookie,
noop.bytes, sizeof(noop.bytes));
libcouchbase_server_send_packets(server);
}
}
free(affected_servers);
return libcouchbase_synchandler_return(instance, LIBCOUCHBASE_SUCCESS);
}
/**
* Spool a store request
*
* @author Trond Norbye
* @todo add documentation
* @todo fix the expiration so that it works relative/absolute etc..
* @todo we might want to wait to write the data to the sockets if the
* user want to run a batch of store requests?
*/
LIBCOUCHBASE_API
lcb_error_t lcb_store(lcb_t instance,
const void *command_cookie,
lcb_size_t num,
const lcb_store_cmd_t *const *items)
{
lcb_size_t ii;
/* we need a vbucket config before we can start getting data.. */
if (instance->vbucket_config == NULL) {
switch (instance->type) {
case LCB_TYPE_CLUSTER:
return lcb_synchandler_return(instance, LCB_EBADHANDLE);
case LCB_TYPE_BUCKET:
default:
return lcb_synchandler_return(instance, LCB_CLIENT_ETMPFAIL);
}
}
for (ii = 0; ii < num; ++ii) {
lcb_server_t *server;
protocol_binary_request_set req;
lcb_size_t headersize;
lcb_size_t bodylen;
int vb, idx;
lcb_storage_t operation = items[ii]->v.v0.operation;
const void *key = items[ii]->v.v0.key;
lcb_size_t nkey = items[ii]->v.v0.nkey;
lcb_cas_t cas = items[ii]->v.v0.cas;
lcb_uint32_t flags = items[ii]->v.v0.flags;
lcb_time_t exp = items[ii]->v.v0.exptime;
const void *bytes = items[ii]->v.v0.bytes;
lcb_size_t nbytes = items[ii]->v.v0.nbytes;
const void *hashkey = items[ii]->v.v0.hashkey;
lcb_size_t nhashkey = items[ii]->v.v0.nhashkey;
if (nhashkey == 0) {
hashkey = key;
nhashkey = nkey;
}
(void)vbucket_map(instance->vbucket_config, hashkey, nhashkey,
&vb, &idx);
if (idx < 0 || idx > (int)instance->nservers) {
return lcb_synchandler_return(instance, LCB_NO_MATCHING_SERVER);
}
server = instance->servers + idx;
memset(&req, 0, sizeof(req));
req.message.header.request.magic = PROTOCOL_BINARY_REQ;
req.message.header.request.keylen = ntohs((lcb_uint16_t)nkey);
req.message.header.request.extlen = 8;
req.message.header.request.datatype = PROTOCOL_BINARY_RAW_BYTES;
req.message.header.request.vbucket = ntohs((lcb_uint16_t)vb);
req.message.header.request.opaque = ++instance->seqno;
req.message.header.request.cas = cas;
req.message.body.flags = htonl(flags);
req.message.body.expiration = htonl((lcb_uint32_t)exp);
headersize = sizeof(req.bytes);
switch (operation) {
case LCB_ADD:
req.message.header.request.opcode = PROTOCOL_BINARY_CMD_ADD;
break;
case LCB_REPLACE:
req.message.header.request.opcode = PROTOCOL_BINARY_CMD_REPLACE;
break;
case LCB_SET:
req.message.header.request.opcode = PROTOCOL_BINARY_CMD_SET;
break;
case LCB_APPEND:
req.message.header.request.opcode = PROTOCOL_BINARY_CMD_APPEND;
req.message.header.request.extlen = 0;
headersize -= 8;
break;
case LCB_PREPEND:
req.message.header.request.opcode = PROTOCOL_BINARY_CMD_PREPEND;
req.message.header.request.extlen = 0;
headersize -= 8;
break;
default:
/* We were given an unknown storage operation. */
return lcb_synchandler_return(instance,
lcb_error_handler(instance, LCB_EINVAL,
"Invalid value passed as storage operation"));
}
/* Make it known that this was a success. */
lcb_error_handler(instance, LCB_SUCCESS, NULL);
bodylen = nkey + nbytes + req.message.header.request.extlen;
req.message.header.request.bodylen = htonl((lcb_uint32_t)bodylen);
TRACE_STORE_BEGIN(&req, key, nkey, bytes, nbytes, flags, exp);
lcb_server_start_packet(server, command_cookie, &req, headersize);
lcb_server_write_packet(server, key, nkey);
lcb_server_write_packet(server, bytes, nbytes);
lcb_server_end_packet(server);
lcb_server_send_packets(server);
}
return lcb_synchandler_return(instance, LCB_SUCCESS);
}
static lcb_error_t multi_get(lcb_t instance,
const void *command_cookie,
lcb_size_t num,
const lcb_get_cmd_t *const *items)
{
lcb_server_t *server = NULL;
protocol_binary_request_noop noop;
lcb_size_t ii, *affected_servers = NULL;
struct server_info_st *servers = NULL;
/* we need a vbucket config before we can start getting data.. */
if (instance->vbucket_config == NULL) {
switch (instance->type) {
case LCB_TYPE_CLUSTER:
return lcb_synchandler_return(instance, LCB_EBADHANDLE);
case LCB_TYPE_BUCKET:
default:
return lcb_synchandler_return(instance, LCB_CLIENT_ETMPFAIL);
}
}
affected_servers = calloc(instance->nservers, sizeof(lcb_size_t));
if (affected_servers == NULL) {
return lcb_synchandler_return(instance, LCB_CLIENT_ENOMEM);
}
servers = malloc(num * sizeof(struct server_info_st));
if (servers == NULL) {
free(affected_servers);
return lcb_synchandler_return(instance, LCB_CLIENT_ENOMEM);
}
for (ii = 0; ii < num; ++ii) {
const void *key = items[ii]->v.v0.key;
lcb_size_t nkey = items[ii]->v.v0.nkey;
const void *hashkey = items[ii]->v.v0.hashkey;
lcb_size_t nhashkey = items[ii]->v.v0.nhashkey;
if (nhashkey == 0) {
hashkey = key;
nhashkey = nkey;
}
(void)vbucket_map(instance->vbucket_config, hashkey, nhashkey,
&servers[ii].vb, &servers[ii].idx);
if (servers[ii].idx < 0 || servers[ii].idx > (int)instance->nservers) {
free(servers);
free(affected_servers);
return lcb_synchandler_return(instance, LCB_NO_MATCHING_SERVER);
}
affected_servers[servers[ii].idx]++;
}
for (ii = 0; ii < num; ++ii) {
protocol_binary_request_gat req;
const void *key = items[ii]->v.v0.key;
lcb_size_t nkey = items[ii]->v.v0.nkey;
lcb_time_t exp = items[ii]->v.v0.exptime;
lcb_size_t nreq = sizeof(req.bytes);
int vb;
server = instance->servers + servers[ii].idx;
vb = servers[ii].vb;
memset(&req, 0, sizeof(req));
req.message.header.request.magic = PROTOCOL_BINARY_REQ;
req.message.header.request.keylen = ntohs((lcb_uint16_t)nkey);
req.message.header.request.datatype = PROTOCOL_BINARY_RAW_BYTES;
req.message.header.request.vbucket = ntohs((lcb_uint16_t)vb);
req.message.header.request.bodylen = ntohl((lcb_uint32_t)(nkey));
req.message.header.request.opaque = ++instance->seqno;
if (!exp) {
req.message.header.request.opcode = PROTOCOL_BINARY_CMD_GETQ;
nreq -= 4;
} else {
req.message.header.request.opcode = PROTOCOL_BINARY_CMD_GATQ;
req.message.header.request.extlen = 4;
req.message.body.expiration = ntohl((lcb_uint32_t)exp);
req.message.header.request.bodylen = ntohl((lcb_uint32_t)(nkey) + 4);
}
if (items[ii]->v.v0.lock) {
/* the expiration is optional for GETL command */
req.message.header.request.opcode = CMD_GET_LOCKED;
}
lcb_server_start_packet(server, command_cookie, req.bytes, nreq);
lcb_server_write_packet(server, key, nkey);
lcb_server_end_packet(server);
}
free(servers);
memset(&noop, 0, sizeof(noop));
noop.message.header.request.magic = PROTOCOL_BINARY_REQ;
noop.message.header.request.opcode = PROTOCOL_BINARY_CMD_NOOP;
noop.message.header.request.datatype = PROTOCOL_BINARY_RAW_BYTES;
/*
** We don't know which server we sent the data to, so examine
** where to send the noop
*/
for (ii = 0; ii < instance->nservers; ++ii) {
if (affected_servers[ii]) {
server = instance->servers + ii;
noop.message.header.request.opaque = ++instance->seqno;
lcb_server_complete_packet(server, command_cookie,
noop.bytes, sizeof(noop.bytes));
lcb_server_send_packets(server);
}
}
free(affected_servers);
return lcb_synchandler_return(instance, LCB_SUCCESS);
}
static lcb_error_t single_get(lcb_t instance,
const void *command_cookie,
const lcb_get_cmd_t *item)
{
lcb_server_t *server;
protocol_binary_request_gat req;
int vb, idx;
lcb_size_t nbytes;
const void *hashkey = item->v.v0.hashkey;
lcb_size_t nhashkey = item->v.v0.nhashkey;
const void *key = item->v.v0.key;
lcb_size_t nkey = item->v.v0.nkey;
lcb_time_t exp = item->v.v0.exptime;
/* we need a vbucket config before we can start getting data.. */
if (instance->vbucket_config == NULL) {
switch (instance->type) {
case LCB_TYPE_CLUSTER:
return lcb_synchandler_return(instance, LCB_EBADHANDLE);
case LCB_TYPE_BUCKET:
default:
return lcb_synchandler_return(instance, LCB_CLIENT_ETMPFAIL);
}
}
if (nhashkey == 0) {
hashkey = key;
nhashkey = nkey;
}
(void)vbucket_map(instance->vbucket_config, hashkey, nhashkey,
&vb, &idx);
if (idx < 0 || idx > (int)instance->nservers) {
return lcb_synchandler_return(instance, LCB_NO_MATCHING_SERVER);
}
server = instance->servers + idx;
memset(&req, 0, sizeof(req));
req.message.header.request.magic = PROTOCOL_BINARY_REQ;
req.message.header.request.keylen = ntohs((lcb_uint16_t)nkey);
req.message.header.request.datatype = PROTOCOL_BINARY_RAW_BYTES;
req.message.header.request.vbucket = ntohs((lcb_uint16_t)vb);
req.message.header.request.bodylen = ntohl((lcb_uint32_t)(nkey));
req.message.header.request.opaque = ++instance->seqno;
if (!exp) {
req.message.header.request.opcode = PROTOCOL_BINARY_CMD_GET;
nbytes = sizeof(req.bytes) - 4;
} else {
req.message.header.request.opcode = PROTOCOL_BINARY_CMD_GAT;
req.message.header.request.extlen = 4;
req.message.body.expiration = ntohl((lcb_uint32_t)exp);
req.message.header.request.bodylen = ntohl((lcb_uint32_t)(nkey) + 4);
nbytes = sizeof(req.bytes);
}
if (item->v.v0.lock) {
/* the expiration is optional for GETL command */
req.message.header.request.opcode = CMD_GET_LOCKED;
}
lcb_server_start_packet(server, command_cookie, req.bytes, nbytes);
lcb_server_write_packet(server, key, nkey);
lcb_server_end_packet(server);
lcb_server_send_packets(server);
return lcb_synchandler_return(instance, LCB_SUCCESS);
}
libcouchbase_error_t libcouchbase_store_by_key(libcouchbase_t instance,
const void *command_cookie,
libcouchbase_storage_t operation,
const void *hashkey,
libcouchbase_size_t nhashkey,
const void *key, libcouchbase_size_t nkey,
const void *bytes, libcouchbase_size_t nbytes,
libcouchbase_uint32_t flags, libcouchbase_time_t exp,
libcouchbase_cas_t cas)
{
libcouchbase_server_t *server;
protocol_binary_request_set req;
libcouchbase_size_t headersize;
libcouchbase_size_t bodylen;
int vb, idx;
/* we need a vbucket config before we can start getting data.. */
if (instance->vbucket_config == NULL) {
return libcouchbase_synchandler_return(instance, LIBCOUCHBASE_ETMPFAIL);
}
if (nhashkey == 0) {
nhashkey = nkey;
hashkey = key;
}
(void)vbucket_map(instance->vbucket_config, hashkey, nhashkey, &vb, &idx);
if (idx < 0 || idx > (int)instance->nservers) {
/* the config says that there is no server yet at that position (-1) */
return libcouchbase_synchandler_return(instance, LIBCOUCHBASE_NETWORK_ERROR);
}
server = instance->servers + idx;
memset(&req, 0, sizeof(req));
req.message.header.request.magic = PROTOCOL_BINARY_REQ;
req.message.header.request.keylen = ntohs((libcouchbase_uint16_t)nkey);
req.message.header.request.extlen = 8;
req.message.header.request.datatype = PROTOCOL_BINARY_RAW_BYTES;
req.message.header.request.vbucket = ntohs((libcouchbase_uint16_t)vb);
req.message.header.request.opaque = ++instance->seqno;
req.message.header.request.cas = cas;
req.message.body.flags = htonl(flags);
req.message.body.expiration = htonl((libcouchbase_uint32_t)exp);
headersize = sizeof(req.bytes);
switch (operation) {
case LIBCOUCHBASE_ADD:
req.message.header.request.opcode = PROTOCOL_BINARY_CMD_ADD;
break;
case LIBCOUCHBASE_REPLACE:
req.message.header.request.opcode = PROTOCOL_BINARY_CMD_REPLACE;
break;
case LIBCOUCHBASE_SET:
req.message.header.request.opcode = PROTOCOL_BINARY_CMD_SET;
break;
case LIBCOUCHBASE_APPEND:
req.message.header.request.opcode = PROTOCOL_BINARY_CMD_APPEND;
req.message.header.request.extlen = 0;
headersize -= 8;
break;
case LIBCOUCHBASE_PREPEND:
req.message.header.request.opcode = PROTOCOL_BINARY_CMD_PREPEND;
req.message.header.request.extlen = 0;
headersize -= 8;
break;
default:
/* We were given an unknown storage operation. */
return libcouchbase_synchandler_return(instance,
libcouchbase_error_handler(instance, LIBCOUCHBASE_EINVAL,
"Invalid value passed as storage operation"));
}
/* Make it known that this was a success. */
libcouchbase_error_handler(instance, LIBCOUCHBASE_SUCCESS, NULL);
bodylen = nkey + nbytes + req.message.header.request.extlen;
req.message.header.request.bodylen = htonl((libcouchbase_uint32_t)bodylen);
libcouchbase_server_start_packet(server, command_cookie, &req, headersize);
libcouchbase_server_write_packet(server, key, nkey);
libcouchbase_server_write_packet(server, bytes, nbytes);
libcouchbase_server_end_packet(server);
libcouchbase_server_send_packets(server);
return libcouchbase_synchandler_return(instance, LIBCOUCHBASE_SUCCESS);
}
