bool get_stats(const char *stat_type, int nkey, ADD_STAT add_stats, void *c) {
bool ret = true;
if (add_stats != NULL) {
if (!stat_type) {
/* prepare general statistics for the engine */
STATS_LOCK();
APPEND_STAT("bytes", "%llu", (unsigned long long)stats.curr_bytes);
APPEND_STAT("curr_items", "%u", stats.curr_items);
APPEND_STAT("total_items", "%u", stats.total_items);
APPEND_STAT("evictions", "%llu",
(unsigned long long)stats.evictions);
APPEND_STAT("reclaimed", "%llu",
(unsigned long long)stats.reclaimed);
STATS_UNLOCK();
} else if (nz_strcmp(nkey, stat_type, "items") == 0) {
item_stats(add_stats, c);
} else if (nz_strcmp(nkey, stat_type, "slabs") == 0) {
slabs_stats(add_stats, c);
} else if (nz_strcmp(nkey, stat_type, "sizes") == 0) {
item_stats_sizes(add_stats, c);
} else {
ret = false;
}
} else {
ret = false;
}
return ret;
}
bool get_stats(const char *stat_type, int nkey, ADD_STAT add_stats, void *c) {
bool ret = true;
if (add_stats != NULL) {
if (!stat_type) {
/* prepare general statistics for the engine */
STATS_LOCK();
APPEND_STAT("bytes", "%llu", (unsigned long long)stats_state.curr_bytes);
APPEND_STAT("curr_items", "%llu", (unsigned long long)stats_state.curr_items);
APPEND_STAT("total_items", "%llu", (unsigned long long)stats.total_items);
STATS_UNLOCK();
if (settings.slab_automove > 0) {
pthread_mutex_lock(&slabs_lock);
APPEND_STAT("slab_global_page_pool", "%u", slabclass[SLAB_GLOBAL_PAGE_POOL].slabs);
pthread_mutex_unlock(&slabs_lock);
}
item_stats_totals(add_stats, c);
} else if (nz_strcmp(nkey, stat_type, "items") == 0) {
item_stats(add_stats, c);
} else if (nz_strcmp(nkey, stat_type, "slabs") == 0) {
slabs_stats(add_stats, c);
} else if (nz_strcmp(nkey, stat_type, "sizes") == 0) {
item_stats_sizes(add_stats, c);
} else if (nz_strcmp(nkey, stat_type, "sizes_enable") == 0) {
item_stats_sizes_enable(add_stats, c);
} else if (nz_strcmp(nkey, stat_type, "sizes_disable") == 0) {
item_stats_sizes_disable(add_stats, c);
} else {
ret = false;
}
} else {
ret = false;
}
return ret;
}
void process_stat(conn *c, char *command) {
time_t now = time(0);
if (strcmp(command, "stats") == 0) {
char temp[1024];
pid_t pid = getpid();
char *pos = temp;
struct rusage usage;
getrusage(RUSAGE_SELF, &usage);
pos += sprintf(pos, "STAT pid %u\r\n", pid);
pos += sprintf(pos, "STAT uptime %lu\r\n", now - stats.started);
pos += sprintf(pos, "STAT time %ld\r\n", now);
pos += sprintf(pos, "STAT version " VERSION "\r\n");
pos += sprintf(pos, "STAT rusage_user %ld.%06ld\r\n", usage.ru_utime.tv_sec, usage.ru_utime.tv_usec);
pos += sprintf(pos, "STAT rusage_system %ld.%06ld\r\n", usage.ru_stime.tv_sec, usage.ru_stime.tv_usec);
pos += sprintf(pos, "STAT curr_items %u\r\n", stats.curr_items);
pos += sprintf(pos, "STAT total_items %u\r\n", stats.total_items);
pos += sprintf(pos, "STAT bytes %llu\r\n", stats.curr_bytes);
pos += sprintf(pos, "STAT curr_connections %u\r\n", stats.curr_conns - 1); /* ignore listening conn */
pos += sprintf(pos, "STAT total_connections %u\r\n", stats.total_conns);
pos += sprintf(pos, "STAT connection_structures %u\r\n", stats.conn_structs);
pos += sprintf(pos, "STAT cmd_get %u\r\n", stats.get_cmds);
pos += sprintf(pos, "STAT cmd_set %u\r\n", stats.set_cmds);
pos += sprintf(pos, "STAT get_hits %u\r\n", stats.get_hits);
pos += sprintf(pos, "STAT get_misses %u\r\n", stats.get_misses);
pos += sprintf(pos, "STAT bytes_read %llu\r\n", stats.bytes_read);
pos += sprintf(pos, "STAT bytes_written %llu\r\n", stats.bytes_written);
pos += sprintf(pos, "STAT limit_maxbytes %u\r\n", settings.maxbytes);
pos += sprintf(pos, "END");
out_string(c, temp);
return;
}
if (strcmp(command, "stats reset") == 0) {
stats_reset();
out_string(c, "RESET");
return;
}
#ifdef HAVE_MALLOC_H
#ifdef HAVE_STRUCT_MALLINFO
if (strcmp(command, "stats malloc") == 0) {
char temp[512];
struct mallinfo info;
char *pos = temp;
info = mallinfo();
pos += sprintf(pos, "STAT arena_size %d\r\n", info.arena);
pos += sprintf(pos, "STAT free_chunks %d\r\n", info.ordblks);
pos += sprintf(pos, "STAT fastbin_blocks %d\r\n", info.smblks);
pos += sprintf(pos, "STAT mmapped_regions %d\r\n", info.hblks);
pos += sprintf(pos, "STAT mmapped_space %d\r\n", info.hblkhd);
pos += sprintf(pos, "STAT max_total_alloc %d\r\n", info.usmblks);
pos += sprintf(pos, "STAT fastbin_space %d\r\n", info.fsmblks);
pos += sprintf(pos, "STAT total_alloc %d\r\n", info.uordblks);
pos += sprintf(pos, "STAT total_free %d\r\n", info.fordblks);
pos += sprintf(pos, "STAT releasable_space %d\r\nEND", info.keepcost);
out_string(c, temp);
return;
}
#endif /* HAVE_STRUCT_MALLINFO */
#endif /* HAVE_MALLOC_H */
if (strcmp(command, "stats maps") == 0) {
char *wbuf;
int wsize = 8192; /* should be enough */
int fd;
int res;
wbuf = (char *)malloc(wsize);
if (wbuf == 0) {
out_string(c, "SERVER_ERROR out of memory");
return;
}
fd = open("/proc/self/maps", O_RDONLY);
if (fd == -1) {
out_string(c, "SERVER_ERROR cannot open the maps file");
free(wbuf);
return;
}
res = read(fd, wbuf, wsize - 6); /* 6 = END\r\n\0 */
if (res == wsize - 6) {
out_string(c, "SERVER_ERROR buffer overflow");
free(wbuf);
close(fd);
return;
}
if (res == 0 || res == -1) {
out_string(c, "SERVER_ERROR can't read the maps file");
free(wbuf);
close(fd);
return;
}
strcpy(wbuf + res, "END\r\n");
c->write_and_free=wbuf;
c->wcurr=wbuf;
c->wbytes = res + 6;
c->state = conn_write;
c->write_and_go = conn_read;
close(fd);
return;
}
if (strncmp(command, "stats cachedump", 15) == 0) {
char *buf;
unsigned int bytes, id, limit = 0;
char *start = command + 15;
if (sscanf(start, "%u %u\r\n", &id, &limit) < 1) {
out_string(c, "CLIENT_ERROR bad command line");
return;
}
buf = item_cachedump(id, limit, &bytes);
if (buf == 0) {
out_string(c, "SERVER_ERROR out of memory");
return;
}
c->write_and_free = buf;
c->wcurr = buf;
c->wbytes = bytes;
c->state = conn_write;
c->write_and_go = conn_read;
return;
}
if (strcmp(command, "stats slabs")==0) {
int bytes = 0;
char *buf = slabs_stats(&bytes);
if (!buf) {
out_string(c, "SERVER_ERROR out of memory");
return;
}
c->write_and_free = buf;
c->wcurr = buf;
c->wbytes = bytes;
c->state = conn_write;
c->write_and_go = conn_read;
return;
}
if (strcmp(command, "stats items")==0) {
char buffer[4096];
item_stats(buffer, 4096);
out_string(c, buffer);
return;
}
if (strcmp(command, "stats sizes")==0) {
int bytes = 0;
char *buf = item_stats_sizes(&bytes);
if (! buf) {
out_string(c, "SERVER_ERROR out of memory");
return;
}
c->write_and_free = buf;
c->wcurr = buf;
c->wbytes = bytes;
c->state = conn_write;
c->write_and_go = conn_read;
return;
}
out_string(c, "ERROR");
}