* Copyright (C) 2009 Paul Sadauskas
* Copyright (C) 2009 Doug MacEachern
* Copyright (C) 2007-2012 Florian octo Forster
- *
+ * Copyright (C) 2013-2014 Limelight Networks, Inc.
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; only version 2 of the License is applicable.
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
- * Authors:
+ * Based on the write_graphite plugin. Authors:
* Florian octo Forster <octo at collectd.org>
* Doug MacEachern <dougm at hyperic.com>
* Paul Sadauskas <psadauskas at gmail.com>
* Scott Sanders <scott at jssjr.com>
* Pierre-Yves Ritschard <pyr at spootnik.org>
- *
- * Modified by:
+ * write_tsdb Authors:
* Brett Hawn <bhawn at llnw.com>
* Kevin Bowling <kbowling@llnw.com>
- *
- * Based on the write_graphite plugin.
**/
/* write_tsdb plugin configuation example
* Host "localhost"
* Port "4242"
* Prefix "sys"
+ * HostTags "status=production deviceclass=www"
* </Node>
* </Plugin>
*/
#include "utils_cache.h"
#include "utils_parse_option.h"
-/* Folks without pthread will need to disable this plugin. */
#include <pthread.h>
-
#include <sys/socket.h>
#include <netdb.h>
{
int sock_fd;
- char *node;
- char *service;
- char *prefix;
- char *postfix;
+ char *node;
+ char *service;
+ char *prefix;
+ char *host_tags;
char escape_char;
_Bool store_rates;
/*
* Functions
*/
-static void wt_reset_buffer (struct wt_callback *cb)
+static void wt_reset_buffer(struct wt_callback *cb)
{
- memset (cb->send_buf, 0, sizeof (cb->send_buf));
- cb->send_buf_free = sizeof (cb->send_buf);
+ memset(cb->send_buf, 0, sizeof(cb->send_buf));
+ cb->send_buf_free = sizeof(cb->send_buf);
cb->send_buf_fill = 0;
- cb->send_buf_init_time = cdtime ();
+ cb->send_buf_init_time = cdtime();
}
-static int wt_send_buffer (struct wt_callback *cb)
+static int wt_send_buffer(struct wt_callback *cb)
{
ssize_t status = 0;
- status = swrite (cb->sock_fd, cb->send_buf, strlen (cb->send_buf));
+ status = swrite(cb->sock_fd, cb->send_buf, strlen(cb->send_buf));
if (status < 0)
{
char errbuf[1024];
- ERROR ("write_tsdb plugin: send failed with status %zi (%s)",
- status, sstrerror (errno, errbuf, sizeof (errbuf)));
-
+ ERROR("write_tsdb plugin: send failed with status %zi (%s)",
+ status, sstrerror (errno, errbuf, sizeof (errbuf)));
close (cb->sock_fd);
cb->sock_fd = -1;
- return (-1);
+ return -1;
}
- return (0);
+ return 0;
}
/* NOTE: You must hold cb->send_lock when calling this function! */
-static int wt_flush_nolock (cdtime_t timeout, struct wt_callback *cb)
+static int wt_flush_nolock(cdtime_t timeout, struct wt_callback *cb)
{
int status;
- DEBUG ("write_tsdb plugin: wt_flush_nolock: timeout = %.3f; "
- "send_buf_fill = %zu;",
- (double)timeout,
- cb->send_buf_fill);
+ DEBUG("write_tsdb plugin: wt_flush_nolock: timeout = %.3f; "
+ "send_buf_fill = %zu;",
+ (double)timeout,
+ cb->send_buf_fill);
/* timeout == 0 => flush unconditionally */
if (timeout > 0)
{
cdtime_t now;
- now = cdtime ();
+ now = cdtime();
if ((cb->send_buf_init_time + timeout) > now)
- return (0);
+ return 0;
}
if (cb->send_buf_fill <= 0)
{
- cb->send_buf_init_time = cdtime ();
- return (0);
+ cb->send_buf_init_time = cdtime();
+ return 0;
}
- status = wt_send_buffer (cb);
- wt_reset_buffer (cb);
+ status = wt_send_buffer(cb);
+ wt_reset_buffer(cb);
- return (status);
+ return status;
}
-static int wt_callback_init (struct wt_callback *cb)
+static int wt_callback_init(struct wt_callback *cb)
{
struct addrinfo ai_hints;
struct addrinfo *ai_list;
const char *service = cb->service ? cb->service : WT_DEFAULT_SERVICE;
if (cb->sock_fd > 0)
- return (0);
+ return 0;
- memset (&ai_hints, 0, sizeof (ai_hints));
+ memset(&ai_hints, 0, sizeof(ai_hints));
#ifdef AI_ADDRCONFIG
- ai_hints.ai_flags |= AI_ADDRCONFIG;
+ ai_hints.ai_flags |= AI_ADDRCONFIG;
#endif
- ai_hints.ai_family = AF_UNSPEC;
+ ai_hints.ai_family = AF_UNSPEC;
ai_hints.ai_socktype = SOCK_STREAM;
ai_list = NULL;
- status = getaddrinfo (node, service, &ai_hints, &ai_list);
+ status = getaddrinfo(node, service, &ai_hints, &ai_list);
if (status != 0)
{
- ERROR ("write_tsdb plugin: getaddrinfo (%s, %s) failed: %s",
- node, service, gai_strerror (status));
- return (-1);
+ ERROR("write_tsdb plugin: getaddrinfo (%s, %s) failed: %s",
+ node, service, gai_strerror (status));
+ return -1;
}
assert (ai_list != NULL);
for (ai_ptr = ai_list; ai_ptr != NULL; ai_ptr = ai_ptr->ai_next)
{
- cb->sock_fd = socket (ai_ptr->ai_family, ai_ptr->ai_socktype,
- ai_ptr->ai_protocol);
+ cb->sock_fd = socket(ai_ptr->ai_family, ai_ptr->ai_socktype,
+ ai_ptr->ai_protocol);
if (cb->sock_fd < 0)
continue;
- status = connect (cb->sock_fd, ai_ptr->ai_addr, ai_ptr->ai_addrlen);
+ status = connect(cb->sock_fd, ai_ptr->ai_addr, ai_ptr->ai_addrlen);
if (status != 0)
{
- close (cb->sock_fd);
+ close(cb->sock_fd);
cb->sock_fd = -1;
continue;
}
break;
}
- freeaddrinfo (ai_list);
+ freeaddrinfo(ai_list);
if (cb->sock_fd < 0)
{
char errbuf[1024];
- ERROR ("write_tsdb plugin: Connecting to %s:%s failed. "
- "The last error was: %s", node, service,
- sstrerror (errno, errbuf, sizeof (errbuf)));
- close (cb->sock_fd);
- return (-1);
+ ERROR("write_tsdb plugin: Connecting to %s:%s failed. "
+ "The last error was: %s", node, service,
+ sstrerror (errno, errbuf, sizeof(errbuf)));
+ close(cb->sock_fd);
+ return -1;
}
- wt_reset_buffer (cb);
+ wt_reset_buffer(cb);
- return (0);
+ return 0;
}
-static void wt_callback_free (void *data)
+static void wt_callback_free(void *data)
{
struct wt_callback *cb;
cb = data;
- pthread_mutex_lock (&cb->send_lock);
+ pthread_mutex_lock(&cb->send_lock);
- wt_flush_nolock (/* timeout = */ 0, cb);
+ wt_flush_nolock(0, cb);
close(cb->sock_fd);
cb->sock_fd = -1;
sfree(cb->node);
sfree(cb->service);
sfree(cb->prefix);
- sfree(cb->postfix);
+ sfree(cb->host_tags);
- pthread_mutex_destroy (&cb->send_lock);
+ pthread_mutex_destroy(&cb->send_lock);
sfree(cb);
}
-static int wt_flush (cdtime_t timeout,
- const char *identifier __attribute__((unused)),
- user_data_t *user_data)
+static int wt_flush(cdtime_t timeout,
+ const char *identifier __attribute__((unused)),
+ user_data_t *user_data)
{
struct wt_callback *cb;
int status;
if (user_data == NULL)
- return (-EINVAL);
+ return -EINVAL;
cb = user_data->data;
- pthread_mutex_lock (&cb->send_lock);
+ pthread_mutex_lock(&cb->send_lock);
if (cb->sock_fd < 0)
{
- status = wt_callback_init (cb);
+ status = wt_callback_init(cb);
if (status != 0)
{
- ERROR ("write_tsdb plugin: wt_callback_init failed.");
- pthread_mutex_unlock (&cb->send_lock);
- return (-1);
+ ERROR("write_tsdb plugin: wt_callback_init failed.");
+ pthread_mutex_unlock(&cb->send_lock);
+ return -1;
}
}
- status = wt_flush_nolock (timeout, cb);
- pthread_mutex_unlock (&cb->send_lock);
+ status = wt_flush_nolock(timeout, cb);
+ pthread_mutex_unlock(&cb->send_lock);
- return (status);
+ return status;
}
-static int wt_format_values (char *ret, size_t ret_len,
- int ds_num, const data_set_t *ds,
- const value_list_t *vl,
- _Bool store_rates)
+static int wt_format_values(char *ret, size_t ret_len,
+ int ds_num, const data_set_t *ds,
+ const value_list_t *vl,
+ _Bool store_rates)
{
size_t offset = 0;
int status;
gauge_t *rates = NULL;
- assert (0 == strcmp (ds->type, vl->type));
+ assert(0 == strcmp (ds->type, vl->type));
- memset (ret, 0, ret_len);
+ memset(ret, 0, ret_len);
#define BUFFER_ADD(...) do { \
status = ssnprintf (ret + offset, ret_len - offset, \
__VA_ARGS__); \
if (status < 1) \
{ \
- sfree (rates); \
- return (-1); \
+ sfree(rates); \
+ return -1; \
} \
else if (((size_t) status) >= (ret_len - offset)) \
{ \
- sfree (rates); \
- return (-1); \
+ sfree(rates); \
+ return -1; \
} \
else \
offset += ((size_t) status); \
} while (0)
if (ds->ds[ds_num].type == DS_TYPE_GAUGE)
- BUFFER_ADD ("%f", vl->values[ds_num].gauge);
+ BUFFER_ADD("%f", vl->values[ds_num].gauge);
else if (store_rates)
{
if (rates == NULL)
rates = uc_get_rate (ds, vl);
if (rates == NULL)
{
- WARNING ("format_values: "
- "uc_get_rate failed.");
- return (-1);
+ WARNING("format_values: "
+ "uc_get_rate failed.");
+ return -1;
}
- BUFFER_ADD ("%f", rates[ds_num]);
+ BUFFER_ADD("%f", rates[ds_num]);
}
else if (ds->ds[ds_num].type == DS_TYPE_COUNTER)
- BUFFER_ADD ("%llu", vl->values[ds_num].counter);
+ BUFFER_ADD("%llu", vl->values[ds_num].counter);
else if (ds->ds[ds_num].type == DS_TYPE_DERIVE)
- BUFFER_ADD ("%" PRIi64, vl->values[ds_num].derive);
+ BUFFER_ADD("%" PRIi64, vl->values[ds_num].derive);
else if (ds->ds[ds_num].type == DS_TYPE_ABSOLUTE)
- BUFFER_ADD ("%" PRIu64, vl->values[ds_num].absolute);
+ BUFFER_ADD("%" PRIu64, vl->values[ds_num].absolute);
else
{
- ERROR ("format_values plugin: Unknown data source type: %i",
- ds->ds[ds_num].type);
- sfree (rates);
- return (-1);
+ ERROR("format_values plugin: Unknown data source type: %i",
+ ds->ds[ds_num].type);
+ sfree(rates);
+ return -1;
}
#undef BUFFER_ADD
- sfree (rates);
- return (0);
+ sfree(rates);
+ return 0;
}
-static int wt_format_name (char *ret, int ret_len,
- const value_list_t *vl,
- const struct wt_callback *cb,
- const char *ds_name)
+static int wt_format_name(char *ret, int ret_len,
+ const value_list_t *vl,
+ const struct wt_callback *cb,
+ const char *ds_name)
{
char *prefix;
- char *postfix;
prefix = cb->prefix;
if (prefix == NULL)
prefix = "";
- postfix = cb->postfix;
- if (postfix == NULL)
- postfix = "";
-
if (ds_name != NULL) {
if (vl->plugin_instance[0] == '\0') {
ssnprintf(ret, ret_len, "%s.%s.%s",
prefix, vl->plugin, vl->plugin_instance, vl->type_instance);
}
- return (0);
+ return 0;
}
static int wt_send_message (const char* key, const char* value,
const char* host)
{
int status;
- size_t message_len;
+ int message_len;
+ const char *message_fmt;
char message[1024];
/* skip if value is NaN */
if (value[0] == 'n')
- return (0);
+ return 0;
- message_len = (size_t) ssnprintf (message, sizeof (message),
- "put %s %u %s fqdn=%s\r\n",
+ message_fmt = "put %s %u %s fqdn=%s %s\r\n";
+ message_len = ssnprintf (message, sizeof(message),
+ message_fmt,
key,
- (unsigned int) CDTIME_T_TO_TIME_T (
+ (unsigned int)CDTIME_T_TO_TIME_T(
time),
value,
- host);
- if (message_len >= sizeof (message)) {
- ERROR ("write_tsdb plugin: message buffer too small: "
- "Need %zu bytes.", message_len + 1);
- return (-1);
+ host,
+ cb->host_tags);
+ if (message_len >= sizeof(message)) {
+ ERROR("write_tsdb plugin: message buffer too small: "
+ "Need %d bytes.", message_len + 1);
+ return -1;
}
- pthread_mutex_lock (&cb->send_lock);
+ pthread_mutex_lock(&cb->send_lock);
if (cb->sock_fd < 0)
{
- status = wt_callback_init (cb);
+ status = wt_callback_init(cb);
if (status != 0)
{
- ERROR ("write_tsdb plugin: wt_callback_init failed.");
- pthread_mutex_unlock (&cb->send_lock);
- return (-1);
+ ERROR("write_tsdb plugin: wt_callback_init failed.");
+ pthread_mutex_unlock(&cb->send_lock);
+ return -1;
}
}
if (message_len >= cb->send_buf_free)
{
- status = wt_flush_nolock (/* timeout = */ 0, cb);
+ status = wt_flush_nolock(0, cb);
if (status != 0)
{
- pthread_mutex_unlock (&cb->send_lock);
- return (status);
+ pthread_mutex_unlock(&cb->send_lock);
+ return status;
}
}
/* Assert that we have enough space for this message. */
- assert (message_len < cb->send_buf_free);
+ assert(message_len < cb->send_buf_free);
/* `message_len + 1' because `message_len' does not include the
* trailing null byte. Neither does `send_buffer_fill'. */
- memcpy (cb->send_buf + cb->send_buf_fill,
+ memcpy(cb->send_buf + cb->send_buf_fill,
message, message_len + 1);
cb->send_buf_fill += message_len;
cb->send_buf_free -= message_len;
- DEBUG ("write_tsdb plugin: [%s]:%s buf %zu/%zu (%.1f %%) \"%s\"",
- cb->node,
- cb->service,
- cb->send_buf_fill, sizeof (cb->send_buf),
- 100.0 * ((double) cb->send_buf_fill) /
- ((double) sizeof (cb->send_buf)),
- message);
+ DEBUG("write_tsdb plugin: [%s]:%s buf %zu/%zu (%.1f %%) \"%s\"",
+ cb->node,
+ cb->service,
+ cb->send_buf_fill, sizeof(cb->send_buf),
+ 100.0 * ((double) cb->send_buf_fill) /
+ ((double) sizeof(cb->send_buf)),
+ message);
- pthread_mutex_unlock (&cb->send_lock);
+ pthread_mutex_unlock(&cb->send_lock);
- return (0);
+ return 0;
}
-static int wt_write_messages (const data_set_t *ds, const value_list_t *vl,
- struct wt_callback *cb)
+static int wt_write_messages(const data_set_t *ds, const value_list_t *vl,
+ struct wt_callback *cb)
{
char key[10*DATA_MAX_NAME_LEN];
char values[512];
int status, i;
- if (0 != strcmp (ds->type, vl->type))
+ if (0 != strcmp(ds->type, vl->type))
{
- ERROR ("write_tsdb plugin: DS type does not match "
- "value list type");
+ ERROR("write_tsdb plugin: DS type does not match "
+ "value list type");
return -1;
}
if (cb->always_append_ds || (ds->ds_num > 1))
ds_name = ds->ds[i].name;
- /* Copy the identifier to `key' and escape it. */
- status = wt_format_name (key, sizeof (key), vl, cb, ds_name);
+ /* Copy the identifier to 'key' and escape it. */
+ status = wt_format_name(key, sizeof(key), vl, cb, ds_name);
if (status != 0)
{
- ERROR ("write_tsdb plugin: error with format_name");
- return (status);
+ ERROR("write_tsdb plugin: error with format_name");
+ return status;
}
- escape_string (key, sizeof (key));
+ escape_string(key, sizeof(key));
/* Convert the values to an ASCII representation and put that into
- * `values'. */
- status = wt_format_values (values, sizeof (values), i, ds, vl,
- cb->store_rates);
+ * 'values'. */
+ status = wt_format_values(values, sizeof(values), i, ds, vl,
+ cb->store_rates);
if (status != 0)
{
- ERROR ("write_tsdb plugin: error with "
- "wt_format_values");
- return (status);
+ ERROR("write_tsdb plugin: error with "
+ "wt_format_values");
+ return status;
}
/* Send the message to tsdb */
- status = wt_send_message (key, values, vl->time, cb, vl->host);
+ status = wt_send_message(key, values, vl->time, cb, vl->host);
if (status != 0)
{
- ERROR ("write_tsdb plugin: error with "
- "wt_send_message");
- return (status);
+ ERROR("write_tsdb plugin: error with "
+ "wt_send_message");
+ return status;
}
}
- return (0);
+ return 0;
}
-static int wt_write (const data_set_t *ds, const value_list_t *vl,
- user_data_t *user_data)
+static int wt_write(const data_set_t *ds, const value_list_t *vl,
+ user_data_t *user_data)
{
struct wt_callback *cb;
int status;
if (user_data == NULL)
- return (EINVAL);
+ return EINVAL;
cb = user_data->data;
- status = wt_write_messages (ds, vl, cb);
+ status = wt_write_messages(ds, vl, cb);
- return (status);
+ return status;
}
-static int config_set_char (char *dest,
- oconfig_item_t *ci)
+static int config_set_char(char *dest,
+ oconfig_item_t *ci)
{
char buffer[4];
int status;
- memset (buffer, 0, sizeof (buffer));
+ memset(buffer, 0, sizeof(buffer));
- status = cf_util_get_string_buffer (ci, buffer, sizeof (buffer));
+ status = cf_util_get_string_buffer(ci, buffer, sizeof(buffer));
if (status != 0)
return (status);
if (buffer[0] == 0)
{
- ERROR ("write_tsdb plugin: Cannot use an empty string for the "
- "\"EscapeCharacter\" option.");
- return (-1);
+ ERROR("write_tsdb plugin: Cannot use an empty string for the "
+ "\"EscapeCharacter\" option.");
+ return -1;
}
if (buffer[1] != 0)
{
- WARNING ("write_tsdb plugin: Only the first character of the "
- "\"EscapeCharacter\" option ('%c') will be used.",
- (int) buffer[0]);
+ WARNING("write_tsdb plugin: Only the first character of the "
+ "\"EscapeCharacter\" option ('%c') will be used.",
+ (int) buffer[0]);
}
*dest = buffer[0];
- return (0);
+ return 0;
}
-static int wt_config_tsd (oconfig_item_t *ci)
+static int wt_config_tsd(oconfig_item_t *ci)
{
struct wt_callback *cb;
user_data_t user_data;
char callback_name[DATA_MAX_NAME_LEN];
int i;
- cb = malloc (sizeof (*cb));
+ cb = malloc(sizeof(*cb));
if (cb == NULL)
{
- ERROR ("write_tsdb plugin: malloc failed.");
- return (-1);
+ ERROR("write_tsdb plugin: malloc failed.");
+ return -1;
}
- memset (cb, 0, sizeof (*cb));
+ memset(cb, 0, sizeof(*cb));
cb->sock_fd = -1;
cb->node = NULL;
cb->service = NULL;
cb->prefix = NULL;
- cb->postfix = NULL;
+ cb->host_tags = NULL;
cb->escape_char = WT_DEFAULT_ESCAPE;
cb->store_rates = 1;
- pthread_mutex_init (&cb->send_lock, /* attr = */ NULL);
+ pthread_mutex_init (&cb->send_lock, NULL);
for (i = 0; i < ci->children_num; i++)
{
oconfig_item_t *child = ci->children + i;
- if (strcasecmp ("Host", child->key) == 0)
- cf_util_get_string (child, &cb->node);
- else if (strcasecmp ("Port", child->key) == 0)
- cf_util_get_service (child, &cb->service);
- else if (strcasecmp ("Prefix", child->key) == 0)
- cf_util_get_string (child, &cb->prefix);
- else if (strcasecmp ("Postfix", child->key) == 0)
- cf_util_get_string (child, &cb->postfix);
- else if (strcasecmp ("StoreRates", child->key) == 0)
- cf_util_get_boolean (child, &cb->store_rates);
- else if (strcasecmp ("SeparateInstances", child->key) == 0)
- cf_util_get_boolean (child, &cb->separate_instances);
- else if (strcasecmp ("AlwaysAppendDS", child->key) == 0)
- cf_util_get_boolean (child, &cb->always_append_ds);
- else if (strcasecmp ("EscapeCharacter", child->key) == 0)
- config_set_char (&cb->escape_char, child);
+ if (strcasecmp("Host", child->key) == 0)
+ cf_util_get_string(child, &cb->node);
+ else if (strcasecmp("Port", child->key) == 0)
+ cf_util_get_service(child, &cb->service);
+ else if (strcasecmp("Prefix", child->key) == 0)
+ cf_util_get_string(child, &cb->prefix);
+ else if (strcasecmp("HostTags", child->key) == 0)
+ cf_util_get_string(child, &cb->host_tags);
+ else if (strcasecmp("StoreRates", child->key) == 0)
+ cf_util_get_boolean(child, &cb->store_rates);
+ else if (strcasecmp("SeparateInstances", child->key) == 0)
+ cf_util_get_boolean(child, &cb->separate_instances);
+ else if (strcasecmp("AlwaysAppendDS", child->key) == 0)
+ cf_util_get_boolean(child, &cb->always_append_ds);
+ else if (strcasecmp("EscapeCharacter", child->key) == 0)
+ config_set_char(&cb->escape_char, child);
else
{
- ERROR ("write_tsdb plugin: Invalid configuration "
- "option: %s.", child->key);
+ ERROR("write_tsdb plugin: Invalid configuration "
+ "option: %s.", child->key);
}
}
- ssnprintf (callback_name, sizeof (callback_name), "write_tsdb/%s/%s",
- cb->node != NULL ? cb->node : WT_DEFAULT_NODE,
- cb->service != NULL ? cb->service : WT_DEFAULT_SERVICE);
+ ssnprintf(callback_name, sizeof(callback_name), "write_tsdb/%s/%s",
+ cb->node != NULL ? cb->node : WT_DEFAULT_NODE,
+ cb->service != NULL ? cb->service : WT_DEFAULT_SERVICE);
- memset (&user_data, 0, sizeof (user_data));
+ memset(&user_data, 0, sizeof(user_data));
user_data.data = cb;
user_data.free_func = wt_callback_free;
- plugin_register_write (callback_name, wt_write, &user_data);
+ plugin_register_write(callback_name, wt_write, &user_data);
user_data.free_func = NULL;
- plugin_register_flush (callback_name, wt_flush, &user_data);
+ plugin_register_flush(callback_name, wt_flush, &user_data);
- return (0);
+ return 0;
}
-static int wt_config (oconfig_item_t *ci)
+static int wt_config(oconfig_item_t *ci)
{
int i;
{
oconfig_item_t *child = ci->children + i;
- if (strcasecmp ("Node", child->key) == 0)
- wt_config_tsd (child);
+ if (strcasecmp("Node", child->key) == 0)
+ wt_config_tsd(child);
else
{
- ERROR ("write_tsdb plugin: Invalid configuration "
- "option: %s.", child->key);
+ ERROR("write_tsdb plugin: Invalid configuration "
+ "option: %s.", child->key);
}
}
- return (0);
+ return 0;
}
-void module_register (void)
+void module_register(void)
{
- plugin_register_complex_config ("write_tsdb", wt_config);
+ plugin_register_complex_config("write_tsdb", wt_config);
}
/* vim: set sw=4 ts=4 sts=4 tw=78 et : */