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diff --git a/src/memcached.c b/src/memcached.c
index 5cfcc915ff5dcdfad456e79a683be32f90ab2be0..535ea84704b3dac328a5af495f69bccdbdfedb9a 100644 (file)
--- a/src/memcached.c
+++ b/src/memcached.c
/**
* collectd - src/memcached.c, based on src/hddtemp.c
* Copyright (C) 2007 Antony Dovgal
- * Copyright (C) 2007-2010 Florian Forster
+ * Copyright (C) 2007-2012 Florian Forster
* Copyright (C) 2009 Doug MacEachern
* Copyright (C) 2009 Franck Lombardi
* Copyright (C) 2012 Nicolas Szalay
#include "plugin.h"
#include "configfile.h"
-# include <poll.h>
-# include <netdb.h>
-# include <sys/socket.h>
-# include <sys/un.h>
-# include <netinet/in.h>
-# include <netinet/tcp.h>
-
-/* Hack to work around the missing define in AIX */
-#ifndef MSG_DONTWAIT
-# define MSG_DONTWAIT MSG_NONBLOCK
-#endif
+#include <netdb.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
#define MEMCACHED_DEF_HOST "127.0.0.1"
#define MEMCACHED_DEF_PORT "11211"
-#define MEMCACHED_RETRY_COUNT 100
-
struct memcached_s
{
char *name;
char *host;
char *port;
};
-
typedef struct memcached_s memcached_t;
-static int memcached_read (user_data_t *user_data);
+static _Bool memcached_have_instances = 0;
static void memcached_free (memcached_t *st)
{
sfree (st->port);
}
-static int memcached_query_daemon (char *buffer, int buffer_size, user_data_t *user_data)
+static int memcached_connect_unix (memcached_t *st)
{
- int fd=-1;
- ssize_t status;
- int buffer_fill;
- int i = 0;
+ struct sockaddr_un serv_addr;
+ int fd;
- memcached_t *st;
- st = user_data->data;
- if (st->socket != NULL) {
- struct sockaddr_un serv_addr;
-
- memset (&serv_addr, 0, sizeof (serv_addr));
- serv_addr.sun_family = AF_UNIX;
- sstrncpy (serv_addr.sun_path, st->socket,
- sizeof (serv_addr.sun_path));
-
- /* create our socket descriptor */
- fd = socket (AF_UNIX, SOCK_STREAM, 0);
- if (fd < 0) {
- char errbuf[1024];
- ERROR ("memcached: unix socket: %s", sstrerror (errno, errbuf,
- sizeof (errbuf)));
- return -1;
- }
- }
- else {
- if (st->port != NULL) {
- const char *host;
- const char *port;
+ memset (&serv_addr, 0, sizeof (serv_addr));
+ serv_addr.sun_family = AF_UNIX;
+ sstrncpy (serv_addr.sun_path, st->socket,
+ sizeof (serv_addr.sun_path));
- struct addrinfo ai_hints;
- struct addrinfo *ai_list, *ai_ptr;
- int ai_return = 0;
+ /* create our socket descriptor */
+ fd = socket (AF_UNIX, SOCK_STREAM, 0);
+ if (fd < 0)
+ {
+ char errbuf[1024];
+ ERROR ("memcached plugin: memcached_connect_unix: socket(2) failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (-1);
+ }
- memset (&ai_hints, '\0', sizeof (ai_hints));
- ai_hints.ai_flags = 0;
-#ifdef AI_ADDRCONFIG
- /* ai_hints.ai_flags |= AI_ADDRCONFIG; */
-#endif
- ai_hints.ai_family = AF_INET;
- ai_hints.ai_socktype = SOCK_STREAM;
- ai_hints.ai_protocol = 0;
-
- host = st->host;
- if (host == NULL) {
- host = MEMCACHED_DEF_HOST;
- }
-
- port = st->port;
- if (strlen (port) == 0) {
- port = MEMCACHED_DEF_PORT;
- }
-
- if ((ai_return = getaddrinfo (host, port, &ai_hints, &ai_list)) != 0) {
- char errbuf[1024];
- ERROR ("memcached: getaddrinfo (%s, %s): %s",
- host, port,
- (ai_return == EAI_SYSTEM)
- ? sstrerror (errno, errbuf, sizeof (errbuf))
- : gai_strerror (ai_return));
- return -1;
- }
+ return (fd);
+} /* int memcached_connect_unix */
- fd = -1;
- for (ai_ptr = ai_list; ai_ptr != NULL; ai_ptr = ai_ptr->ai_next) {
- /* create our socket descriptor */
- fd = socket (ai_ptr->ai_family, ai_ptr->ai_socktype, ai_ptr->ai_protocol);
- if (fd < 0) {
- char errbuf[1024];
- ERROR ("memcached: socket: %s", sstrerror (errno, errbuf, sizeof (errbuf)));
- continue;
- }
-
- /* connect to the memcached daemon */
- status = (ssize_t) connect (fd, (struct sockaddr *) ai_ptr->ai_addr, ai_ptr->ai_addrlen);
- if (status != 0) {
- shutdown (fd, SHUT_RDWR);
- close (fd);
- fd = -1;
- continue;
- }
+static int memcached_connect_inet (memcached_t *st)
+{
+ char *host;
+ char *port;
- /* A socket could be opened and connecting succeeded. We're
- * done. */
- break;
- }
+ struct addrinfo ai_hints;
+ struct addrinfo *ai_list, *ai_ptr;
+ int status;
+ int fd = -1;
- freeaddrinfo (ai_list);
- }
- }
+ memset (&ai_hints, 0, sizeof (ai_hints));
+ ai_hints.ai_flags = 0;
+#ifdef AI_ADDRCONFIG
+ ai_hints.ai_flags |= AI_ADDRCONFIG;
+#endif
+ ai_hints.ai_family = AF_UNSPEC;
+ ai_hints.ai_socktype = SOCK_STREAM;
+ ai_hints.ai_protocol = 0;
- if (fd < 0) {
- ERROR ("memcached: Could not connect to daemon.");
- return -1;
- }
+ host = (st->host != NULL) ? st->host : MEMCACHED_DEF_HOST;
+ port = (st->port != NULL) ? st->port : MEMCACHED_DEF_PORT;
- if (send(fd, "stats\r\n", sizeof("stats\r\n") - 1, MSG_DONTWAIT) != (sizeof("stats\r\n") - 1)) {
- ERROR ("memcached: Could not send command to the memcached daemon.");
- return -1;
+ ai_list = NULL;
+ status = getaddrinfo (host, port, &ai_hints, &ai_list);
+ if (status != 0)
+ {
+ char errbuf[1024];
+ ERROR ("memcached plugin: memcached_connect_inet: "
+ "getaddrinfo(%s,%s) failed: %s",
+ host, port,
+ (status == EAI_SYSTEM)
+ ? sstrerror (errno, errbuf, sizeof (errbuf))
+ : gai_strerror (status));
+ return (-1);
}
+ for (ai_ptr = ai_list; ai_ptr != NULL; ai_ptr = ai_ptr->ai_next)
{
- struct pollfd p;
- int status;
-
- memset (&p, 0, sizeof (p));
- p.fd = fd;
- p.events = POLLIN | POLLERR | POLLHUP;
- p.revents = 0;
-
- status = poll (&p, /* nfds = */ 1,
- /* timeout = */ CDTIME_T_TO_MS (interval_g));
- if (status <= 0)
+ /* create our socket descriptor */
+ fd = socket (ai_ptr->ai_family, ai_ptr->ai_socktype, ai_ptr->ai_protocol);
+ if (fd < 0)
{
- if (status == 0)
- {
- ERROR ("memcached: poll(2) timed out after %.3f seconds.",
- CDTIME_T_TO_DOUBLE (interval_g));
- }
- else
- {
- char errbuf[1024];
- ERROR ("memcached: poll(2) failed: %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- }
- shutdown (fd, SHUT_RDWR);
- close (fd);
- return (-1);
- }
- }
-
- /* receive data from the memcached daemon */
- memset (buffer, '\0', buffer_size);
-
- buffer_fill = 0;
- while ((status = recv (fd, buffer + buffer_fill, buffer_size - buffer_fill, MSG_DONTWAIT)) != 0) {
- if (i > MEMCACHED_RETRY_COUNT) {
- ERROR("recv() timed out");
- break;
- }
- i++;
-
- if (status == -1) {
char errbuf[1024];
-
- if (errno == EAGAIN) {
- continue;
- }
-
- ERROR ("memcached: Error reading from socket: %s",
+ WARNING ("memcached plugin: memcached_connect_inet: "
+ "socket(2) failed: %s",
sstrerror (errno, errbuf, sizeof (errbuf)));
- shutdown(fd, SHUT_RDWR);
- close (fd);
- return -1;
+ continue;
}
- buffer_fill += status;
- if (buffer_fill > 3 && buffer[buffer_fill-5] == 'E' && buffer[buffer_fill-4] == 'N' && buffer[buffer_fill-3] == 'D') {
- /* we got all the data */
- break;
+ /* connect to the memcached daemon */
+ status = (int) connect (fd, ai_ptr->ai_addr, ai_ptr->ai_addrlen);
+ if (status != 0)
+ {
+ shutdown (fd, SHUT_RDWR);
+ close (fd);
+ fd = -1;
+ continue;
}
- }
- if (buffer_fill >= buffer_size) {
- buffer[buffer_size - 1] = '\0';
- WARNING ("memcached: Message from memcached has been truncated.");
- } else if (buffer_fill == 0) {
- WARNING ("memcached: Peer has unexpectedly shut down the socket. "
- "Buffer: `%s'", buffer);
- shutdown(fd, SHUT_RDWR);
- close(fd);
- return -1;
+ /* A socket could be opened and connecting succeeded. We're done. */
+ break;
}
- shutdown(fd, SHUT_RDWR);
- close(fd);
- return 0;
+ freeaddrinfo (ai_list);
+ return (fd);
+} /* int memcached_connect_inet */
+
+static int memcached_connect (memcached_t *st)
+{
+ if (st->socket != NULL)
+ return (memcached_connect_unix (st));
+ else
+ return (memcached_connect_inet (st));
}
-/* Configuration handling functiions
- * <Plugin memcached>
- * <Instance "instance_name">
- * Host foo.zomg.com
- * Port "1234"
- * </Instance>
- * </Plugin>
- */
-static int config_add_instance(oconfig_item_t *ci)
+static int memcached_query_daemon (char *buffer, size_t buffer_size, memcached_t *st)
{
- memcached_t *st;
- int i;
+ int fd = -1;
int status;
+ size_t buffer_fill;
- if ((ci->values_num != 1)
- || (ci->values[0].type != OCONFIG_TYPE_STRING))
- {
- WARNING ("memcached plugin: The `%s' config option "
- "needs exactly one string argument.", ci->key);
- return (-1);
+ fd = memcached_connect (st);
+ if (fd < 0) {
+ ERROR ("memcached plugin: Instance \"%s\" could not connect to daemon.",
+ st->name);
+ return -1;
}
- st = (memcached_t *) malloc (sizeof (*st));
- if (st == NULL)
+ status = (int) swrite (fd, "stats\r\n", strlen ("stats\r\n"));
+ if (status != 0)
{
- ERROR ("memcached plugin: malloc failed.");
+ char errbuf[1024];
+ ERROR ("memcached plugin: write(2) failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ shutdown(fd, SHUT_RDWR);
+ close (fd);
return (-1);
}
- st->name = NULL;
- st->socket = NULL;
- st->host = NULL;
- st->port = NULL;
- memset (st, 0, sizeof (*st));
+ /* receive data from the memcached daemon */
+ memset (buffer, 0, buffer_size);
- status = cf_util_get_string (ci, &st->name);
- if (status != 0)
+ buffer_fill = 0;
+ while ((status = (int) recv (fd, buffer + buffer_fill,
+ buffer_size - buffer_fill, /* flags = */ 0)) != 0)
{
- sfree (st);
- return (status);
- }
- assert (st->name != NULL);
+ char const end_token[5] = {'E', 'N', 'D', '\r', '\n'};
+ if (status < 0)
+ {
+ char errbuf[1024];
- for (i = 0; i < ci->children_num; i++)
- {
- oconfig_item_t *child = ci->children + i;
+ if ((errno == EAGAIN) || (errno == EINTR))
+ continue;
- if (strcasecmp ("Socket", child->key) == 0)
- status = cf_util_get_string (child, &st->socket);
- else if (strcasecmp ("Host", child->key) == 0)
- status = cf_util_get_string (child, &st->host);
- else if (strcasecmp ("Port", child->key) == 0)
- status = cf_util_get_service (child, &st->port);
- else
+ ERROR ("memcached: Error reading from socket: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ shutdown(fd, SHUT_RDWR);
+ close (fd);
+ return (-1);
+ }
+
+ buffer_fill += (size_t) status;
+ if (buffer_fill > buffer_size)
{
- WARNING ("memcached plugin: Option `%s' not allowed here.",
- child->key);
- status = -1;
+ buffer_fill = buffer_size;
+ WARNING ("memcached plugin: Message was truncated.");
+ break;
}
- if (status != 0)
+ /* If buffer ends in end_token, we have all the data. */
+ if (memcmp (buffer + buffer_fill - sizeof (end_token),
+ end_token, sizeof (end_token)) == 0)
break;
- }
+ } /* while (recv) */
- if (status == 0)
+ status = 0;
+ if (buffer_fill == 0)
{
- user_data_t ud;
- char callback_name[3*DATA_MAX_NAME_LEN];
-
- memset (&ud, 0, sizeof (ud));
- ud.data = st;
- ud.free_func = (void *) memcached_free;
-
- memset (callback_name, 0, sizeof (callback_name));
- ssnprintf (callback_name, sizeof (callback_name),
- "memcached/%s/%s",
- (st->host != NULL) ? st->host : hostname_g,
- (st->port != NULL) ? st->port : "default"),
-
- status = plugin_register_complex_read (/* group = */ "memcached",
- /* name = */ callback_name,
- /* callback = */ memcached_read,
- /* interval = */ NULL,
- /* user_data = */ &ud);
+ WARNING ("memcached plugin: No data returned by memcached.");
+ status = -1;
}
- if (status != 0)
- {
- memcached_free(st);
- return (-1);
- }
-
- return (0);
-}
+ shutdown(fd, SHUT_RDWR);
+ close(fd);
+ return (status);
+} /* int memcached_query_daemon */
-static int memcached_config (oconfig_item_t *ci)
+static void memcached_init_vl (value_list_t *vl, memcached_t const *st)
{
- int status = 0;
- int i;
-
- for (i = 0; i < ci->children_num; i++)
+ sstrncpy (vl->plugin, "memcached", sizeof (vl->plugin));
+ if (strcmp (st->name, "__legacy__") == 0) /* legacy mode */
{
- oconfig_item_t *child = ci->children + i;
-
- if (strcasecmp ("Instance", child->key) == 0)
- config_add_instance (child);
+ sstrncpy (vl->host, hostname_g, sizeof (vl->host));
+ }
+ else
+ {
+ if (st->socket != NULL)
+ sstrncpy (vl->host, hostname_g, sizeof (vl->host));
else
- WARNING ("memcached plugin: The configuration option "
- "\"%s\" is not allowed here. Did you "
- "forget to add an <Instance /> block "
- "around the configuration?",
- child->key);
- } /* for (ci->children) */
-
- return (status);
+ sstrncpy (vl->host,
+ (st->host != NULL) ? st->host : MEMCACHED_DEF_HOST,
+ sizeof (vl->host));
+ sstrncpy (vl->plugin_instance, st->name, sizeof (vl->plugin_instance));
+ }
}
static void submit_derive (const char *type, const char *type_inst,
{
value_t values[1];
value_list_t vl = VALUE_LIST_INIT;
+ memcached_init_vl (&vl, st);
values[0].derive = value;
vl.values = values;
vl.values_len = 1;
- sstrncpy (vl.host, hostname_g, sizeof (vl.host));
- sstrncpy (vl.plugin, "memcached", sizeof (vl.plugin));
- if (st->name != NULL)
- sstrncpy (vl.plugin_instance, st->name, sizeof (vl.plugin_instance));
sstrncpy (vl.type, type, sizeof (vl.type));
if (type_inst != NULL)
sstrncpy (vl.type_instance, type_inst, sizeof (vl.type_instance));
{
value_t values[2];
value_list_t vl = VALUE_LIST_INIT;
+ memcached_init_vl (&vl, st);
values[0].derive = value0;
values[1].derive = value1;
vl.values = values;
vl.values_len = 2;
- sstrncpy (vl.host, hostname_g, sizeof (vl.host));
- sstrncpy (vl.plugin, "memcached", sizeof (vl.plugin));
- if (st->name != NULL)
- sstrncpy (vl.plugin_instance, st->name, sizeof (vl.plugin_instance));
sstrncpy (vl.type, type, sizeof (vl.type));
if (type_inst != NULL)
sstrncpy (vl.type_instance, type_inst, sizeof (vl.type_instance));
{
value_t values[1];
value_list_t vl = VALUE_LIST_INIT;
+ memcached_init_vl (&vl, st);
values[0].gauge = value;
vl.values = values;
vl.values_len = 1;
- sstrncpy (vl.host, hostname_g, sizeof (vl.host));
- sstrncpy (vl.plugin, "memcached", sizeof (vl.plugin));
- if (st->name != NULL)
- sstrncpy (vl.plugin_instance, st->name, sizeof (vl.plugin_instance));
sstrncpy (vl.type, type, sizeof (vl.type));
if (type_inst != NULL)
sstrncpy (vl.type_instance, type_inst, sizeof (vl.type_instance));
{
value_t values[2];
value_list_t vl = VALUE_LIST_INIT;
+ memcached_init_vl (&vl, st);
values[0].gauge = value0;
values[1].gauge = value1;
vl.values = values;
vl.values_len = 2;
- sstrncpy (vl.host, hostname_g, sizeof (vl.host));
- sstrncpy (vl.plugin, "memcached", sizeof (vl.plugin));
- if (st->name != NULL)
- sstrncpy (vl.plugin_instance, st->name, sizeof (vl.plugin_instance));
sstrncpy (vl.type, type, sizeof (vl.type));
if (type_inst != NULL)
sstrncpy (vl.type_instance, type_inst, sizeof (vl.type_instance));
gauge_t bytes_total = NAN;
gauge_t hits = NAN;
gauge_t gets = NAN;
+ gauge_t incr_hits = NAN;
+ derive_t incr = 0;
+ gauge_t decr_hits = NAN;
+ derive_t decr = 0;
derive_t rusage_user = 0;
derive_t rusage_syst = 0;
derive_t octets_rx = 0;
st = user_data->data;
/* get data from daemon */
- if (memcached_query_daemon (buf, sizeof (buf), user_data) < 0) {
+ if (memcached_query_daemon (buf, sizeof (buf), st) < 0) {
return -1;
}
gets = atof (fields[2]);
}
+ /*
+ * Increment/Decrement
+ */
+ else if (FIELD_IS("incr_misses"))
+ {
+ derive_t incr_count = atoll (fields[2]);
+ submit_derive ("memcached_ops", "incr_misses", incr_count, st);
+ incr += incr_count;
+ }
+ else if (FIELD_IS ("incr_hits"))
+ {
+ derive_t incr_count = atoll (fields[2]);
+ submit_derive ("memcached_ops", "incr_hits", incr_count, st);
+ incr_hits = atof (fields[2]);
+ incr += incr_count;
+ }
+ else if (FIELD_IS ("decr_misses"))
+ {
+ derive_t decr_count = atoll (fields[2]);
+ submit_derive ("memcached_ops", "decr_misses", decr_count, st);
+ decr += decr_count;
+ }
+ else if (FIELD_IS ("decr_hits"))
+ {
+ derive_t decr_count = atoll (fields[2]);
+ submit_derive ("memcached_ops", "decr_hits", decr_count, st);
+ decr_hits = atof (fields[2]);
+ decr += decr_count;
+ }
+
/*
* Operations on the cache, i. e. cache hits, cache misses and evictions of items
*/
submit_gauge ("percent", "hitratio", rate, st);
}
+ if (!isnan (incr_hits) && incr != 0)
+ {
+ gauge_t incr_rate = 100.0 * incr_hits / incr;
+ submit_gauge ("percent", "incr_hitratio", incr_rate, st);
+ submit_derive ("memcached_ops", "incr", incr, st);
+ }
+
+ if (!isnan (decr_hits) && decr != 0)
+ {
+ gauge_t decr_rate = 100.0 * decr_hits / decr;
+ submit_gauge ("percent", "decr_hitratio", decr_rate, st);
+ submit_derive ("memcached_ops", "decr", decr, st);
+ }
+
return 0;
+} /* int memcached_read */
+
+static int memcached_add_read_callback (memcached_t *st)
+{
+ user_data_t ud;
+ char callback_name[3*DATA_MAX_NAME_LEN];
+ int status;
+
+ memset (&ud, 0, sizeof (ud));
+ ud.data = st;
+ ud.free_func = (void *) memcached_free;
+
+ assert (st->name != NULL);
+ ssnprintf (callback_name, sizeof (callback_name), "memcached/%s", st->name);
+
+ status = plugin_register_complex_read (/* group = */ "memcached",
+ /* name = */ callback_name,
+ /* callback = */ memcached_read,
+ /* interval = */ NULL,
+ /* user_data = */ &ud);
+ return (status);
+} /* int memcached_add_read_callback */
+
+/* Configuration handling functiions
+ * <Plugin memcached>
+ * <Instance "instance_name">
+ * Host foo.zomg.com
+ * Port "1234"
+ * </Instance>
+ * </Plugin>
+ */
+static int config_add_instance(oconfig_item_t *ci)
+{
+ memcached_t *st;
+ int i;
+ int status = 0;
+
+ /* Disable automatic generation of default instance in the init callback. */
+ memcached_have_instances = 1;
+
+ st = malloc (sizeof (*st));
+ if (st == NULL)
+ {
+ ERROR ("memcached plugin: malloc failed.");
+ return (-1);
+ }
+
+ memset (st, 0, sizeof (*st));
+ st->name = NULL;
+ st->socket = NULL;
+ st->host = NULL;
+ st->port = NULL;
+
+ if (strcasecmp (ci->key, "Plugin") == 0) /* default instance */
+ st->name = sstrdup ("__legacy__");
+ else /* <Instance /> block */
+ status = cf_util_get_string (ci, &st->name);
+ if (status != 0)
+ {
+ sfree (st);
+ return (status);
+ }
+ assert (st->name != NULL);
+
+ for (i = 0; i < ci->children_num; i++)
+ {
+ oconfig_item_t *child = ci->children + i;
+
+ if (strcasecmp ("Socket", child->key) == 0)
+ status = cf_util_get_string (child, &st->socket);
+ else if (strcasecmp ("Host", child->key) == 0)
+ status = cf_util_get_string (child, &st->host);
+ else if (strcasecmp ("Port", child->key) == 0)
+ status = cf_util_get_service (child, &st->port);
+ else
+ {
+ WARNING ("memcached plugin: Option `%s' not allowed here.",
+ child->key);
+ status = -1;
+ }
+
+ if (status != 0)
+ break;
+ }
+
+ if (status == 0)
+ status = memcached_add_read_callback (st);
+
+ if (status != 0)
+ {
+ memcached_free(st);
+ return (-1);
+ }
+
+ return (0);
}
+static int memcached_config (oconfig_item_t *ci)
+{
+ int status = 0;
+ _Bool have_instance_block = 0;
+ int i;
+
+ for (i = 0; i < ci->children_num; i++)
+ {
+ oconfig_item_t *child = ci->children + i;
+
+ if (strcasecmp ("Instance", child->key) == 0)
+ {
+ config_add_instance (child);
+ have_instance_block = 1;
+ }
+ else if (!have_instance_block)
+ {
+ /* Non-instance option: Assume legacy configuration (without <Instance />
+ * blocks) and call config_add_instance() with the <Plugin /> block. */
+ return (config_add_instance (ci));
+ }
+ else
+ WARNING ("memcached plugin: The configuration option "
+ "\"%s\" is not allowed here. Did you "
+ "forget to add an <Instance /> block "
+ "around the configuration?",
+ child->key);
+ } /* for (ci->children) */
+
+ return (status);
+}
+
+static int memcached_init (void)
+{
+ memcached_t *st;
+ int status;
+
+ if (memcached_have_instances)
+ return (0);
+
+ /* No instances were configured, lets start a default instance. */
+ st = malloc (sizeof (*st));
+ if (st == NULL)
+ return (ENOMEM);
+ memset (st, 0, sizeof (*st));
+ st->name = sstrdup ("__legacy__");
+ st->socket = NULL;
+ st->host = NULL;
+ st->port = NULL;
+
+ status = memcached_add_read_callback (st);
+ if (status == 0)
+ memcached_have_instances = 1;
+ else
+ memcached_free (st);
+
+ return (status);
+} /* int memcached_init */
+
void module_register (void)
{
plugin_register_complex_config ("memcached", memcached_config);
+ plugin_register_init ("memcached", memcached_init);
}