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return rv;
}
APU_DECLARE(apr_status_t)
apr_redis_delete(apr_redis_t *rc, const char *key, apr_uint32_t timeout)
{
apr_status_t rv;
apr_redis_server_t *rs;
apr_redis_conn_t *conn;
apr_uint32_t hash;
apr_size_t written;
struct iovec vec[6];
apr_size_t len, klen;
char keysize_str[LILBUFF_SIZE];
klen = strlen(key);
hash = apr_redis_hash(rc, key, klen);
rs = apr_redis_find_server_hash(rc, hash);
if (rs == NULL)
return APR_NOTFOUND;
rv = rs_find_conn(rs, &conn);
if (rv != APR_SUCCESS) {
apr_redis_disable_server(rc, rs);
return rv;
}
/*
* RESP Command:
* *2
* $3
* DEL
* $<keylen>
* key
*/
vec[0].iov_base = RC_RESP_2;
vec[0].iov_len = RC_RESP_2_LEN;
vec[1].iov_base = RC_DEL_SIZE;
vec[1].iov_len = RC_DEL_SIZE_LEN;
vec[2].iov_base = RC_DEL;
vec[2].iov_len = RC_DEL_LEN;
len = apr_snprintf(keysize_str, LILBUFF_SIZE, "$%" APR_SIZE_T_FMT "\r\n",
klen);
vec[3].iov_base = keysize_str;
vec[3].iov_len = len;
vec[4].iov_base = (void *) key;
vec[4].iov_len = klen;
vec[5].iov_base = RC_EOL;
vec[5].iov_len = RC_EOL_LEN;
rv = apr_socket_sendv(conn->sock, vec, 6, &written);
if (rv != APR_SUCCESS) {
rs_bad_conn(rs, conn);
apr_redis_disable_server(rc, rs);
return rv;
}
rv = get_server_line(conn);
if (rv != APR_SUCCESS) {
rs_bad_conn(rs, conn);
apr_redis_disable_server(rc, rs);
return rv;
}
if (strncmp(RS_DELETED, conn->buffer, RS_DELETED_LEN) == 0) {
rv = APR_SUCCESS;
}
else if (strncmp(RS_NOT_FOUND_DEL, conn->buffer, RS_NOT_FOUND_DEL_LEN) == 0) {
rv = APR_NOTFOUND;
}
else {
rv = APR_EGENERAL;
}
rs_release_conn(rs, conn);
return rv;
}
APU_DECLARE(apr_status_t)
apr_redis_ping(apr_redis_server_t *rs)
{
apr_status_t rv;
apr_size_t written;
struct iovec vec[3];
apr_redis_conn_t *conn;
rv = rs_find_conn(rs, &conn);
if (rv != APR_SUCCESS) {
return rv;
}
/*
* RESP Command:
* *1
* $4
* PING
*/
vec[0].iov_base = RC_RESP_1;
vec[0].iov_len = RC_RESP_1_LEN;
vec[1].iov_base = RC_PING_SIZE;
vec[1].iov_len = RC_PING_SIZE_LEN;
vec[2].iov_base = RC_PING;
vec[2].iov_len = RC_PING_LEN;
rv = apr_socket_sendv(conn->sock, vec, 3, &written);
if (rv != APR_SUCCESS) {
rs_bad_conn(rs, conn);
return rv;
}
rv = get_server_line(conn);
if (rv == APR_SUCCESS) {
/* we got *something*. Was it Redis? */
if (strncmp(conn->buffer, "+PONG", sizeof("+PONG")-1) != 0) {
rv = APR_EGENERAL;
}
}
rs_release_conn(rs, conn);
return rv;
}
APU_DECLARE(apr_status_t)
apr_redis_info(apr_redis_server_t *rs, apr_pool_t *p, char **baton)
{
apr_status_t rv;
apr_redis_conn_t *conn;
apr_size_t written;
struct iovec vec[3];
rv = rs_find_conn(rs, &conn);
if (rv != APR_SUCCESS) {
return rv;
}
/*
* RESP Command:
* *1
* $4
* INFO
*/
vec[0].iov_base = RC_RESP_1;
vec[0].iov_len = RC_RESP_1_LEN;
vec[1].iov_base = RC_INFO_SIZE;
vec[1].iov_len = RC_INFO_SIZE_LEN;
vec[2].iov_base = RC_INFO;
vec[2].iov_len = RC_INFO_LEN;
rv = apr_socket_sendv(conn->sock, vec, 3, &written);
if (rv != APR_SUCCESS) {
rs_bad_conn(rs, conn);
return rv;
}
rv = get_server_line(conn);
if (rv != APR_SUCCESS) {
rs_bad_conn(rs, conn);
return rv;
}
if (strncmp(RS_TYPE_STRING, conn->buffer, RS_TYPE_STRING_LEN) == 0) {
apr_size_t nl;
rv = grab_bulk_resp(rs, NULL, conn, p, baton, &nl);
} else {
rs_bad_conn(rs, conn);
rv = APR_EGENERAL;
}
rs_release_conn(rs, conn);
return rv;
}
#define RV_FIELD "redis_version:"
APU_DECLARE(apr_status_t)
apr_redis_version(apr_redis_server_t *rs, apr_pool_t *p, char **baton)
{
apr_status_t rv;
char *ptr, *eptr;
apr_pool_t *subpool;
/* Have we already obtained the version number? */
if (rs->version.minor != 0) {
if (baton)
*baton = apr_pstrdup(p, rs->version.number);
return APR_SUCCESS;
}
if (apr_pool_create(&subpool, p) != APR_SUCCESS) {
/* well, we tried */
subpool = p;
}
rv = apr_redis_info(rs, subpool, baton);
if (rv != APR_SUCCESS) {
if (subpool != p) {
apr_pool_destroy(subpool);
}
return rv;
}
ptr = strstr(*baton, RV_FIELD);
if (ptr) {
rs->version.major = strtol(ptr + sizeof(RV_FIELD) - 1, &eptr, 10);
ptr = eptr + 1;
rs->version.minor = strtol(ptr, &eptr, 10);
ptr = eptr + 1;
rs->version.patch = strtol(ptr, &eptr, 10);
rs->version.number = apr_psprintf(rs->p, "%d.%d.%d",
rs->version.major, rs->version.minor,
rs->version.patch);
}
if (baton)
*baton = apr_pstrdup(p, rs->version.number);
if (subpool != p) {
apr_pool_destroy(subpool);
}
return APR_SUCCESS;
}
static apr_status_t plus_minus(apr_redis_t *rc,
int incr,
const char *key,
apr_int32_t inc,
apr_uint32_t *new_value)
{
apr_status_t rv;
apr_redis_server_t *rs;
apr_redis_conn_t *conn;
apr_uint32_t hash;
apr_size_t written;
apr_size_t len, klen;
struct iovec vec[12];
char keysize_str[LILBUFF_SIZE];
char inc_str[LILBUFF_SIZE];
char inc_str_len[LILBUFF_SIZE];
int i = 0;
klen = strlen(key);
hash = apr_redis_hash(rc, key, klen);
rs = apr_redis_find_server_hash(rc, hash);
if (rs == NULL)
return APR_NOTFOUND;
rv = rs_find_conn(rs, &conn);
if (rv != APR_SUCCESS) {
apr_redis_disable_server(rc, rs);
return rv;
}
/*
* RESP Command:
* *2|*3
* $4|$6
* INCR/DECR|INCRBY/DECRBY
* $<keylen>
* key
* <:inc>
*/
if (inc == 1) {
vec[i].iov_base = RC_RESP_2;
vec[i].iov_len = RC_RESP_2_LEN;
i++;
vec[i].iov_base = "$4\r\n";
vec[i].iov_len = sizeof("$4\r\n")-1;
i++;
if (incr)
vec[i].iov_base = "INCR\r\n";
else
vec[i].iov_base = "DECR\r\n";
vec[i].iov_len = sizeof("INCR\r\n")-1;
i++;
}
else {
vec[i].iov_base = RC_RESP_3;
vec[i].iov_len = RC_RESP_3_LEN;
i++;
vec[i].iov_base = "$6\r\n";
vec[i].iov_len = sizeof("$6\r\n")-1;
i++;
if (incr)
vec[i].iov_base = "INCRBY\r\n";
else
vec[i].iov_base = "DECRBY\r\n";
vec[i].iov_len = sizeof("INCRBY\r\n")-1;
i++;
}
len = apr_snprintf(keysize_str, LILBUFF_SIZE, "$%" APR_SIZE_T_FMT "\r\n",
klen);
vec[i].iov_base = keysize_str;
vec[i].iov_len = len;
i++;
vec[i].iov_base = (void *) key;
vec[i].iov_len = klen;
i++;
vec[i].iov_base = RC_EOL;
vec[i].iov_len = RC_EOL_LEN;
i++;
if (inc != 1) {
len = apr_snprintf(inc_str, LILBUFF_SIZE, "%d\r\n", inc);
klen = apr_snprintf(inc_str_len, LILBUFF_SIZE, "$%d\r\n", (int)(len-2));
vec[i].iov_base = inc_str_len;
vec[i].iov_len = klen;
i++;
vec[i].iov_base = inc_str;
vec[i].iov_len = len;
i++;
vec[i].iov_base = RC_EOL;
vec[i].iov_len = RC_EOL_LEN;
i++;
}
rv = apr_socket_sendv(conn->sock, vec, i, &written);
if (rv != APR_SUCCESS) {
rs_bad_conn(rs, conn);
apr_redis_disable_server(rc, rs);
return rv;
}
rv = get_server_line(conn);
if (rv != APR_SUCCESS) {
rs_bad_conn(rs, conn);
apr_redis_disable_server(rc, rs);
return rv;
}
if (strncmp(RS_NOT_FOUND_GET, conn->buffer, RS_NOT_FOUND_GET_LEN) == 0) {
rv = APR_NOTFOUND;
}
else if (*conn->buffer == ':') {
*new_value = atoi((const char *)(conn->buffer + 1));
rv = APR_SUCCESS;
}
else {
rv = APR_EGENERAL;
}
rs_release_conn(rs, conn);
return rv;
}
APU_DECLARE(apr_status_t)
apr_redis_incr(apr_redis_t *rc, const char *key, apr_int32_t inc, apr_uint32_t *new_value)
{
return plus_minus(rc, 1, key, inc, new_value);
}
APU_DECLARE(apr_status_t)
apr_redis_decr(apr_redis_t *rc, const char *key, apr_int32_t inc, apr_uint32_t *new_value)
{
return plus_minus(rc, 0, key, inc, new_value);
}
APU_DECLARE(apr_status_t)
apr_redis_multgetp(apr_redis_t *rc,
apr_pool_t *temp_pool,
apr_pool_t *data_pool,
apr_hash_t *values)
{
return APR_ENOTIMPL;
}
/**
* Define all of the strings for stats
*/
#define STAT_process_id "process_id:"
#define STAT_process_id_LEN (sizeof(STAT_process_id)-1)
#define STAT_uptime_in_seconds "uptime_in_seconds:"
#define STAT_uptime_in_seconds_LEN (sizeof(STAT_uptime_in_seconds)-1)
#define STAT_arch_bits "arch_bits:"
#define STAT_arch_bits_LEN (sizeof(STAT_arch_bits)-1)
#define STAT_connected_clients "connected_clients:"
#define STAT_connected_clients_LEN (sizeof(STAT_connected_clients)-1)
#define STAT_blocked_clients "blocked_clients:"
#define STAT_blocked_clients_LEN (sizeof(STAT_blocked_clients)-1)
#define STAT_maxmemory "maxmemory:"
#define STAT_maxmemory_LEN (sizeof(STAT_maxmemory)-1)
#define STAT_used_memory "used_memory:"
#define STAT_used_memory_LEN (sizeof(STAT_used_memory)-1)
#define STAT_total_system_memory "total_system_memory:"
#define STAT_total_system_memory_LEN (sizeof(STAT_total_system_memory)-1)
#define STAT_total_connections_received "total_connections_received:"
#define STAT_total_connections_received_LEN (sizeof(STAT_total_connections_received)-1)
#define STAT_total_commands_processed "total_commands_processed:"
#define STAT_total_commands_processed_LEN (sizeof(STAT_total_commands_processed)-1)
#define STAT_rejected_connections "rejected_connections:"
#define STAT_rejected_connections_LEN (sizeof(STAT_rejected_connections)-1)
#define STAT_total_net_input_bytes "total_net_input_bytes:"
#define STAT_total_net_input_bytes_LEN (sizeof(STAT_total_net_input_bytes)-1)
#define STAT_total_net_output_bytes "total_net_output_bytes:"
#define STAT_total_net_output_bytes_LEN (sizeof(STAT_total_net_output_bytes)-1)
#define STAT_keyspace_hits "keyspace_hits:"
#define STAT_keyspace_hits_LEN (sizeof(STAT_keyspace_hits)-1)
#define STAT_keyspace_misses "keyspace_misses:"
#define STAT_keyspace_misses_LEN (sizeof(STAT_keyspace_misses)-1)
#define STAT_connected_slaves "connected_slaves:"
#define STAT_connected_slaves_LEN (sizeof(STAT_connected_slaves)-1)
#define STAT_used_cpu_sys "used_cpu_sys:"
#define STAT_used_cpu_sys_LEN (sizeof(STAT_used_cpu_sys)-1)
#define STAT_used_cpu_user "used_cpu_user:"
#define STAT_used_cpu_user_LEN (sizeof(STAT_used_cpu_user)-1)
#define STAT_cluster_enabled "cluster_enabled:"
#define STAT_cluster_enabled_LEN (sizeof(STAT_cluster_enabled)-1)
static apr_uint32_t stat_read_uint32( char *buf)
{
return atoi(buf);
}
static apr_uint64_t stat_read_uint64(char *buf)
{
return apr_atoi64(buf);
}
#define rc_do_stat(name, type) \
if ((ptr = strstr(info , STAT_ ## name )) != NULL ) { \
char *str = ptr + (STAT_ ## name ## _LEN ); \
stats-> name = stat_read_ ## type (str); \
}
static void update_stats(char *info, apr_redis_stats_t *stats)
{
char *ptr;
rc_do_stat(process_id, uint32);
rc_do_stat(uptime_in_seconds, uint32);
rc_do_stat(arch_bits, uint32);
rc_do_stat(connected_clients, uint32);
rc_do_stat(blocked_clients, uint32);
rc_do_stat(maxmemory, uint64);
rc_do_stat(used_memory, uint64);
rc_do_stat(total_system_memory, uint64);
rc_do_stat(total_connections_received, uint64);
rc_do_stat(total_commands_processed, uint64);
rc_do_stat(rejected_connections, uint64);
rc_do_stat(total_net_input_bytes, uint64);
rc_do_stat(total_net_output_bytes, uint64);
rc_do_stat(keyspace_hits, uint64);
rc_do_stat(keyspace_misses, uint64);
rc_do_stat(connected_slaves, uint32);
rc_do_stat(used_cpu_sys, uint32);
rc_do_stat(used_cpu_user, uint32);
rc_do_stat(cluster_enabled, uint32);
}
APU_DECLARE(apr_status_t)
apr_redis_stats(apr_redis_server_t *rs,
apr_pool_t *p,
apr_redis_stats_t **stats)
{
apr_status_t rv;
char *info;
apr_pool_t *subpool;
apr_redis_stats_t *ret;
char *ptr;
if (apr_pool_create(&subpool, p) != APR_SUCCESS) {
/* well, we tried */
subpool = p;
}
rv = apr_redis_info(rs, subpool, &info);
if (rv != APR_SUCCESS) {
if (subpool != p) {
apr_pool_destroy(subpool);
}
return rv;
}
ret = apr_pcalloc(p, sizeof(apr_redis_stats_t));
/* Get the bulk of the stats */
update_stats(info, ret);
/* Now the version number */
if (rs->version.major != 0) {
ret->major = rs->version.major;
ret->minor = rs->version.minor;
ret->patch = rs->version.patch;
}
else {
char *eptr;
ptr = strstr(info, RV_FIELD);
if (ptr) {
ret->major = rs->version.major = strtol(ptr + sizeof(RV_FIELD) - 1, &eptr, 10);
ptr = eptr + 1;
ret->minor = rs->version.minor = strtol(ptr, &eptr, 10);
ptr = eptr + 1;
ret->patch = rs->version.patch = strtol(ptr, &eptr, 10);
}
}
/* Finally, the role */
ptr = strstr(info, "role:");
if (!ptr) {
ret->role = APR_RS_SERVER_UNKNOWN;
}
else if (!strncmp("master", ptr + sizeof("role:") - 1, sizeof("master")-1)) {
ret->role = APR_RS_SERVER_MASTER;
}
else {
ret->role = APR_RS_SERVER_SLAVE;
}
if (stats) {
*stats = ret;
}
return APR_SUCCESS;
}