/*
*/
#include "common.h"
static char *memcached_stat_keys[] = {
"pid",
"uptime",
"time",
"version",
"pointer_size",
"rusage_user",
"rusage_system",
"curr_items",
"total_items",
"bytes",
"curr_connections",
"total_connections",
"connection_structures",
"cmd_get",
"cmd_set",
"get_hits",
"get_misses",
"evictions",
"bytes_read",
"bytes_written",
"limit_maxbytes",
"threads",
NULL
};
static memcached_return set_data(memcached_stat_st *memc_stat, char *key, char *value)
{
if(strlen(key) < 1)
{
WATCHPOINT_STRING(key);
return MEMCACHED_UNKNOWN_STAT_KEY;
}
else if (!strcmp("pid", key))
{
memc_stat->pid= strtol(value, (char **)NULL, 10);
}
else if (!strcmp("uptime", key))
{
memc_stat->uptime= strtol(value, (char **)NULL, 10);
}
else if (!strcmp("time", key))
{
memc_stat->time= strtol(value, (char **)NULL, 10);
}
else if (!strcmp("version", key))
{
memcpy(memc_stat->version, value, strlen(value));
memc_stat->version[strlen(value)]= 0;
}
else if (!strcmp("pointer_size", key))
{
memc_stat->pointer_size= strtol(value, (char **)NULL, 10);
}
else if (!strcmp("rusage_user", key))
{
char *walk_ptr;
for (walk_ptr= value; (!ispunct(*walk_ptr)); walk_ptr++);
*walk_ptr= 0;
walk_ptr++;
memc_stat->rusage_user_seconds= strtol(value, (char **)NULL, 10);
memc_stat->rusage_user_microseconds= strtol(walk_ptr, (char **)NULL, 10);
}
else if (!strcmp("rusage_system", key))
{
char *walk_ptr;
for (walk_ptr= value; (!ispunct(*walk_ptr)); walk_ptr++);
*walk_ptr= 0;
walk_ptr++;
memc_stat->rusage_system_seconds= strtol(value, (char **)NULL, 10);
memc_stat->rusage_system_microseconds= strtol(walk_ptr, (char **)NULL, 10);
}
else if (!strcmp("curr_items", key))
{
memc_stat->curr_items= strtol(value, (char **)NULL, 10);
}
else if (!strcmp("total_items", key))
{
memc_stat->total_items= strtol(value, (char **)NULL, 10);
}
else if (!strcmp("bytes_read", key))
{
memc_stat->bytes_read= strtoll(value, (char **)NULL, 10);
}
else if (!strcmp("bytes_written", key))
{
memc_stat->bytes_written= strtoll(value, (char **)NULL, 10);
}
else if (!strcmp("bytes", key))
{
memc_stat->bytes= strtoll(value, (char **)NULL, 10);
}
else if (!strcmp("curr_connections", key))
{
memc_stat->curr_connections= strtoll(value, (char **)NULL, 10);
}
else if (!strcmp("total_connections", key))
{
memc_stat->total_connections= strtoll(value, (char **)NULL, 10);
}
else if (!strcmp("connection_structures", key))
{
memc_stat->connection_structures= strtol(value, (char **)NULL, 10);
}
else if (!strcmp("cmd_get", key))
{
memc_stat->cmd_get= strtoll(value, (char **)NULL, 10);
}
else if (!strcmp("cmd_set", key))
{
memc_stat->cmd_set= strtoll(value, (char **)NULL, 10);
}
else if (!strcmp("get_hits", key))
{
memc_stat->get_hits= strtoll(value, (char **)NULL, 10);
}
else if (!strcmp("get_misses", key))
{
memc_stat->get_misses= (uint64_t)strtoll(value, (char **)NULL, 10);
}
else if (!strcmp("evictions", key))
{
memc_stat->evictions= (uint64_t)strtoll(value, (char **)NULL, 10);
}
else if (!strcmp("limit_maxbytes", key))
{
memc_stat->limit_maxbytes= strtoll(value, (char **)NULL, 10);
}
else if (!strcmp("threads", key))
{
memc_stat->threads= strtol(value, (char **)NULL, 10);
}
else if (!(strcmp("delete_misses", key) == 0 ||/* New stats in the 1.3 beta */
strcmp("delete_hits", key) == 0 ||/* Just swallow them for now.. */
strcmp("incr_misses", key) == 0 ||
strcmp("incr_hits", key) == 0 ||
strcmp("decr_misses", key) == 0 ||
strcmp("decr_hits", key) == 0 ||
strcmp("cas_misses", key) == 0 ||
strcmp("cas_hits", key) == 0 ||
strcmp("cas_badval", key) == 0 ||
strcmp("cmd_flush", key) == 0 ||
strcmp("accepting_conns", key) == 0 ||
strcmp("listen_disabled_num", key) == 0))
{
WATCHPOINT_STRING(key);
return MEMCACHED_UNKNOWN_STAT_KEY;
}
return MEMCACHED_SUCCESS;
}
char *memcached_stat_get_value(memcached_st *ptr, memcached_stat_st *memc_stat,
const char *key, memcached_return *error)
{
char buffer[SMALL_STRING_LEN];
size_t length;
char *ret;
*error= MEMCACHED_SUCCESS;
if (!memcmp("pid", key, strlen("pid")))
length= snprintf(buffer, SMALL_STRING_LEN,"%u", memc_stat->pid);
else if (!memcmp("uptime", key, strlen("uptime")))
length= snprintf(buffer, SMALL_STRING_LEN,"%u", memc_stat->uptime);
else if (!memcmp("time", key, strlen("time")))
length= snprintf(buffer, SMALL_STRING_LEN,"%llu", (unsigned long long)memc_stat->time);
else if (!memcmp("version", key, strlen("version")))
length= snprintf(buffer, SMALL_STRING_LEN,"%s", memc_stat->version);
else if (!memcmp("pointer_size", key, strlen("pointer_size")))
length= snprintf(buffer, SMALL_STRING_LEN,"%u", memc_stat->pointer_size);
else if (!memcmp("rusage_user", key, strlen("rusage_user")))
length= snprintf(buffer, SMALL_STRING_LEN,"%u.%u", memc_stat->rusage_user_seconds, memc_stat->rusage_user_microseconds);
else if (!memcmp("rusage_system", key, strlen("rusage_system")))
length= snprintf(buffer, SMALL_STRING_LEN,"%u.%u", memc_stat->rusage_system_seconds, memc_stat->rusage_system_microseconds);
else if (!memcmp("curr_items", key, strlen("curr_items")))
length= snprintf(buffer, SMALL_STRING_LEN,"%u", memc_stat->curr_items);
else if (!memcmp("total_items", key, strlen("total_items")))
length= snprintf(buffer, SMALL_STRING_LEN,"%u", memc_stat->total_items);
else if (!memcmp("bytes", key, strlen("bytes")))
length= snprintf(buffer, SMALL_STRING_LEN,"%llu", (unsigned long long)memc_stat->bytes);
else if (!memcmp("curr_connections", key, strlen("curr_connections")))
length= snprintf(buffer, SMALL_STRING_LEN,"%u", memc_stat->curr_connections);
else if (!memcmp("total_connections", key, strlen("total_connections")))
length= snprintf(buffer, SMALL_STRING_LEN,"%u", memc_stat->total_connections);
else if (!memcmp("connection_structures", key, strlen("connection_structures")))
length= snprintf(buffer, SMALL_STRING_LEN,"%u", memc_stat->connection_structures);
else if (!memcmp("cmd_get", key, strlen("cmd_get")))
length= snprintf(buffer, SMALL_STRING_LEN,"%llu", (unsigned long long)memc_stat->cmd_get);
else if (!memcmp("cmd_set", key, strlen("cmd_set")))
length= snprintf(buffer, SMALL_STRING_LEN,"%llu", (unsigned long long)memc_stat->cmd_set);
else if (!memcmp("get_hits", key, strlen("get_hits")))
length= snprintf(buffer, SMALL_STRING_LEN,"%llu", (unsigned long long)memc_stat->get_hits);
else if (!memcmp("get_misses", key, strlen("get_misses")))
length= snprintf(buffer, SMALL_STRING_LEN,"%llu", (unsigned long long)memc_stat->get_misses);
else if (!memcmp("evictions", key, strlen("evictions")))
length= snprintf(buffer, SMALL_STRING_LEN,"%llu", (unsigned long long)memc_stat->evictions);
else if (!memcmp("bytes_read", key, strlen("bytes_read")))
length= snprintf(buffer, SMALL_STRING_LEN,"%llu", (unsigned long long)memc_stat->bytes_read);
else if (!memcmp("bytes_written", key, strlen("bytes_written")))
length= snprintf(buffer, SMALL_STRING_LEN,"%llu", (unsigned long long)memc_stat->bytes_written);
else if (!memcmp("limit_maxbytes", key, strlen("limit_maxbytes")))
length= snprintf(buffer, SMALL_STRING_LEN,"%llu", (unsigned long long)memc_stat->limit_maxbytes);
else if (!memcmp("threads", key, strlen("threads")))
length= snprintf(buffer, SMALL_STRING_LEN,"%u", memc_stat->threads);
else
{
*error= MEMCACHED_NOTFOUND;
return NULL;
}
ret= ptr->call_malloc(ptr, length + 1);
memcpy(ret, buffer, length);
ret[length]= '\0';
return ret;
}
static memcached_return binary_stats_fetch(memcached_st *ptr,
memcached_stat_st *memc_stat,
char *args,
unsigned int server_key)
{
memcached_return rc;
char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
protocol_binary_request_stats request= {.bytes= {0}};
request.message.header.request.magic= PROTOCOL_BINARY_REQ;
request.message.header.request.opcode= PROTOCOL_BINARY_CMD_STAT;
request.message.header.request.datatype= PROTOCOL_BINARY_RAW_BYTES;
if (args != NULL)
{
int len= strlen(args);
rc= memcached_validate_key_length(len, true);
unlikely (rc != MEMCACHED_SUCCESS)
return rc;
request.message.header.request.keylen= htons((uint16_t)len);
request.message.header.request.bodylen= htonl(len);
if ((memcached_do(&ptr->hosts[server_key], request.bytes,
sizeof(request.bytes), 0) != MEMCACHED_SUCCESS) ||
(memcached_io_write(&ptr->hosts[server_key], args, len, 1) == -1))
{
memcached_io_reset(&ptr->hosts[server_key]);
return MEMCACHED_WRITE_FAILURE;
}
}
else
{
if (memcached_do(&ptr->hosts[server_key], request.bytes,
sizeof(request.bytes), 1) != MEMCACHED_SUCCESS)
{
memcached_io_reset(&ptr->hosts[server_key]);
return MEMCACHED_WRITE_FAILURE;
}
}
memcached_server_response_decrement(&ptr->hosts[server_key]);
do
{
rc= memcached_response(&ptr->hosts[server_key], buffer,
sizeof(buffer), NULL);
if (rc == MEMCACHED_END)
break;
unlikely (rc != MEMCACHED_SUCCESS)
{
memcached_io_reset(&ptr->hosts[server_key]);
return rc;
}
unlikely((set_data(memc_stat, buffer, buffer + strlen(buffer) + 1)) == MEMCACHED_UNKNOWN_STAT_KEY)
{
WATCHPOINT_ERROR(MEMCACHED_UNKNOWN_STAT_KEY);
WATCHPOINT_ASSERT(0);
}
} while (1);
/* shit... memcached_response will decrement the counter, so I need to
** reset it.. todo: look at this and try to find a better solution.
*/
ptr->hosts[server_key].cursor_active= 0;
return MEMCACHED_SUCCESS;
}
static memcached_return ascii_stats_fetch(memcached_st *ptr,
memcached_stat_st *memc_stat,
char *args,
unsigned int server_key)
{
memcached_return rc;
char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
size_t send_length;
if (args)
send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE,
"stats %s\r\n", args);
else
send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE,
"stats\r\n");
if (send_length >= MEMCACHED_DEFAULT_COMMAND_SIZE)
return MEMCACHED_WRITE_FAILURE;
rc= memcached_do(&ptr->hosts[server_key], buffer, send_length, 1);
if (rc != MEMCACHED_SUCCESS)
goto error;
while (1)
{
rc= memcached_response(&ptr->hosts[server_key], buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, NULL);
if (rc == MEMCACHED_STAT)
{
char *string_ptr, *end_ptr;
char *key, *value;
string_ptr= buffer;
string_ptr+= 5; /* Move past STAT */
for (end_ptr= string_ptr; isgraph(*end_ptr); end_ptr++);
key= string_ptr;
key[(size_t)(end_ptr-string_ptr)]= 0;
string_ptr= end_ptr + 1;
for (end_ptr= string_ptr; !(isspace(*end_ptr)); end_ptr++);
value= string_ptr;
value[(size_t)(end_ptr-string_ptr)]= 0;
string_ptr= end_ptr + 2;
unlikely((set_data(memc_stat, key, value)) == MEMCACHED_UNKNOWN_STAT_KEY)
{
WATCHPOINT_ERROR(MEMCACHED_UNKNOWN_STAT_KEY);
WATCHPOINT_ASSERT(0);
}
}
else
break;
}
error:
if (rc == MEMCACHED_END)
return MEMCACHED_SUCCESS;
else
return rc;
}
memcached_stat_st *memcached_stat(memcached_st *ptr, char *args, memcached_return *error)
{
unsigned int x;
memcached_return rc;
memcached_stat_st *stats;
unlikely (ptr->flags & MEM_USE_UDP)
{
*error= MEMCACHED_NOT_SUPPORTED;
return NULL;
}
stats= ptr->call_calloc(ptr, ptr->number_of_hosts, sizeof(memcached_stat_st));
if (!stats)
{
*error= MEMCACHED_MEMORY_ALLOCATION_FAILURE;
return NULL;
}
rc= MEMCACHED_SUCCESS;
for (x= 0; x < ptr->number_of_hosts; x++)
{
memcached_return temp_return;
if (ptr->flags & MEM_BINARY_PROTOCOL)
temp_return= binary_stats_fetch(ptr, stats + x, args, x);
else
temp_return= ascii_stats_fetch(ptr, stats + x, args, x);
if (temp_return != MEMCACHED_SUCCESS)
rc= MEMCACHED_SOME_ERRORS;
}
*error= rc;
return stats;
}
memcached_return memcached_stat_servername(memcached_stat_st *memc_stat, char *args,
char *hostname, unsigned int port)
{
memcached_return rc;
memcached_st memc;
memcached_create(&memc);
memcached_server_add(&memc, hostname, port);
if (memc.flags & MEM_BINARY_PROTOCOL)
rc= binary_stats_fetch(&memc, memc_stat, args, 0);
else
rc= ascii_stats_fetch(&memc, memc_stat, args, 0);
memcached_free(&memc);
return rc;
}
/*
We make a copy of the keys since at some point in the not so distant future
we will add support for "found" keys.
*/
char ** memcached_stat_get_keys(memcached_st *ptr, memcached_stat_st *memc_stat,
memcached_return *error)
{
(void) memc_stat;
char **list;
size_t length= sizeof(memcached_stat_keys);
list= ptr->call_malloc(ptr, length);
if (!list)
{
*error= MEMCACHED_MEMORY_ALLOCATION_FAILURE;
return NULL;
}
memcpy(list, memcached_stat_keys, sizeof(memcached_stat_keys));
*error= MEMCACHED_SUCCESS;
return list;
}
void memcached_stat_free(memcached_st *ptr, memcached_stat_st *memc_stat)
{
if (memc_stat == NULL)
{
WATCHPOINT_ASSERT(0); /* Be polite, but when debugging catch this as an error */
return;
}
if (ptr)
ptr->call_free(ptr, memc_stat);
else
free(memc_stat);
}