X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Frrdcached.c;h=d25471465d5d82b89f2ec439a30a2e368e418bca;hb=a10fb163601ca09ee160dac3b3d6f0707f01b8fd;hp=6eb67d4f1b6c0f29d88c54ce188663ced3811b14;hpb=01d23e3f5daf016d03f82d92a76be2fe3decdca4;p=collectd.git

diff --git a/src/rrdcached.c b/src/rrdcached.c
index 6eb67d4f..d2547146 100644
--- a/src/rrdcached.c
+++ b/src/rrdcached.c
@@ -26,9 +26,9 @@
 
 #include "collectd.h"
 
-#include "common.h"
 #include "plugin.h"
-#include "utils_rrdcreate.h"
+#include "utils/common/common.h"
+#include "utils/rrdcreate/rrdcreate.h"
 
 #undef HAVE_CONFIG_H
 #include <rrd.h>
@@ -37,168 +37,153 @@
 /*
  * Private variables
  */
-static char *datadir = NULL;
-static char *daemon_address = NULL;
-static _Bool config_create_files = 1;
-static _Bool config_collect_stats = 1;
-static rrdcreate_config_t rrdcreate_config = {
-    /* stepsize = */ 0,
-    /* heartbeat = */ 0,
-    /* rrarows = */ 1200,
-    /* xff = */ 0.1,
-
-    /* timespans = */ NULL,
-    /* timespans_num = */ 0,
-
-    /* consolidation_functions = */ NULL,
-    /* consolidation_functions_num = */ 0,
-
-    /* async = */ 0};
+static char *datadir;
+static char *daemon_address;
+static bool config_create_files = true;
+static bool config_collect_stats = true;
+static rrdcreate_config_t rrdcreate_config = {.stepsize = 0,
+                                              .heartbeat = 0,
+                                              .rrarows = 1200,
+                                              .xff = 0.1,
+                                              .timespans = NULL,
+                                              .timespans_num = 0,
+                                              .consolidation_functions = NULL,
+                                              .consolidation_functions_num = 0,
+                                              .async = 0};
 
 /*
  * Prototypes.
  */
 static int rc_write(const data_set_t *ds, const value_list_t *vl,
-                    user_data_t __attribute__((unused)) * user_data);
+                    __attribute__((unused)) user_data_t *ud);
 static int rc_flush(__attribute__((unused)) cdtime_t timeout,
                     const char *identifier,
                     __attribute__((unused)) user_data_t *ud);
 
 static int value_list_to_string(char *buffer, int buffer_len,
                                 const data_set_t *ds, const value_list_t *vl) {
-  int offset;
-  int status;
-  time_t t;
-
-  assert(0 == strcmp(ds->type, vl->type));
+  assert(strcmp(ds->type, vl->type) == 0);
 
   memset(buffer, '\0', buffer_len);
 
-  t = CDTIME_T_TO_TIME_T(vl->time);
-  status = ssnprintf(buffer, buffer_len, "%lu", (unsigned long)t);
+  double t = CDTIME_T_TO_DOUBLE(vl->time);
+  int status = snprintf(buffer, buffer_len, "%f", t);
   if ((status < 1) || (status >= buffer_len))
-    return (-1);
-  offset = status;
+    return -1;
+  int offset = status;
 
   for (size_t i = 0; i < ds->ds_num; i++) {
     if ((ds->ds[i].type != DS_TYPE_COUNTER) &&
         (ds->ds[i].type != DS_TYPE_GAUGE) &&
         (ds->ds[i].type != DS_TYPE_DERIVE) &&
         (ds->ds[i].type != DS_TYPE_ABSOLUTE))
-      return (-1);
+      return -1;
 
     if (ds->ds[i].type == DS_TYPE_COUNTER) {
-      status = ssnprintf(buffer + offset, buffer_len - offset, ":%llu",
-                         vl->values[i].counter);
+      status = snprintf(buffer + offset, buffer_len - offset, ":%" PRIu64,
+                        (uint64_t)vl->values[i].counter);
     } else if (ds->ds[i].type == DS_TYPE_GAUGE) {
-      status = ssnprintf(buffer + offset, buffer_len - offset, ":%f",
-                         vl->values[i].gauge);
+      status = snprintf(buffer + offset, buffer_len - offset, ":%f",
+                        vl->values[i].gauge);
     } else if (ds->ds[i].type == DS_TYPE_DERIVE) {
-      status = ssnprintf(buffer + offset, buffer_len - offset, ":%" PRIi64,
-                         vl->values[i].derive);
+      status = snprintf(buffer + offset, buffer_len - offset, ":%" PRIi64,
+                        vl->values[i].derive);
     } else /* if (ds->ds[i].type == DS_TYPE_ABSOLUTE) */ {
-      status = ssnprintf(buffer + offset, buffer_len - offset, ":%" PRIu64,
-                         vl->values[i].absolute);
+      status = snprintf(buffer + offset, buffer_len - offset, ":%" PRIu64,
+                        vl->values[i].absolute);
     }
 
     if ((status < 1) || (status >= (buffer_len - offset)))
-      return (-1);
+      return -1;
 
     offset += status;
   } /* for ds->ds_num */
 
-  return (0);
+  return 0;
 } /* int value_list_to_string */
 
 static int value_list_to_filename(char *buffer, size_t buffer_size,
                                   value_list_t const *vl) {
   char const suffix[] = ".rrd";
-  int status;
-  size_t len;
 
   if (datadir != NULL) {
     size_t datadir_len = strlen(datadir) + 1;
 
     if (datadir_len >= buffer_size)
-      return (ENOMEM);
+      return ENOMEM;
 
     sstrncpy(buffer, datadir, buffer_size);
     buffer[datadir_len - 1] = '/';
-    buffer[datadir_len] = 0;
+    buffer[datadir_len] = '\0';
 
     buffer += datadir_len;
     buffer_size -= datadir_len;
   }
 
-  status = FORMAT_VL(buffer, buffer_size, vl);
+  int status = FORMAT_VL(buffer, buffer_size, vl);
   if (status != 0)
-    return (status);
+    return status;
 
-  len = strlen(buffer);
+  size_t len = strlen(buffer);
   assert(len < buffer_size);
   buffer += len;
   buffer_size -= len;
 
   if (buffer_size <= sizeof(suffix))
-    return (ENOMEM);
+    return ENOMEM;
 
   memcpy(buffer, suffix, sizeof(suffix));
-  return (0);
+  return 0;
 } /* int value_list_to_filename */
 
 static int rc_config_get_int_positive(oconfig_item_t const *ci, int *ret) {
-  int status;
   int tmp = 0;
 
-  status = cf_util_get_int(ci, &tmp);
+  int status = cf_util_get_int(ci, &tmp);
   if (status != 0)
-    return (status);
+    return status;
   if (tmp < 0)
-    return (EINVAL);
+    return EINVAL;
 
   *ret = tmp;
-  return (0);
+  return 0;
 } /* int rc_config_get_int_positive */
 
 static int rc_config_get_xff(oconfig_item_t const *ci, double *ret) {
-  double value;
-
   if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_NUMBER)) {
     ERROR("rrdcached plugin: The \"%s\" needs exactly one numeric argument "
           "in the range [0.0, 1.0)",
           ci->key);
-    return (EINVAL);
+    return EINVAL;
   }
 
-  value = ci->values[0].value.number;
+  double value = ci->values[0].value.number;
   if ((value >= 0.0) && (value < 1.0)) {
     *ret = value;
-    return (0);
+    return 0;
   }
 
   ERROR("rrdcached plugin: The \"%s\" needs exactly one numeric argument "
         "in the range [0.0, 1.0)",
         ci->key);
-  return (EINVAL);
+  return EINVAL;
 } /* int rc_config_get_xff */
 
 static int rc_config_add_timespan(int timespan) {
-  int *tmp;
-
   if (timespan <= 0)
-    return (EINVAL);
+    return EINVAL;
 
-  tmp = realloc(rrdcreate_config.timespans,
-                sizeof(*rrdcreate_config.timespans) *
-                    (rrdcreate_config.timespans_num + 1));
+  int *tmp = realloc(rrdcreate_config.timespans,
+                     sizeof(*rrdcreate_config.timespans) *
+                         (rrdcreate_config.timespans_num + 1));
   if (tmp == NULL)
-    return (ENOMEM);
+    return ENOMEM;
   rrdcreate_config.timespans = tmp;
 
   rrdcreate_config.timespans[rrdcreate_config.timespans_num] = timespan;
   rrdcreate_config.timespans_num++;
 
-  return (0);
+  return 0;
 } /* int rc_config_add_timespan */
 
 static int rc_config(oconfig_item_t *ci) {
@@ -258,43 +243,38 @@ static int rc_config(oconfig_item_t *ci) {
     plugin_register_write("rrdcached", rc_write, /* user_data = */ NULL);
     plugin_register_flush("rrdcached", rc_flush, /* user_data = */ NULL);
   }
-  return (0);
+  return 0;
 } /* int rc_config */
 
 static int try_reconnect(void) {
-  int status;
-
   rrdc_disconnect();
 
   rrd_clear_error();
-  status = rrdc_connect(daemon_address);
+  int status = rrdc_connect(daemon_address);
   if (status != 0) {
     ERROR("rrdcached plugin: Failed to reconnect to RRDCacheD "
           "at %s: %s (status=%d)",
           daemon_address, rrd_get_error(), status);
-    return (-1);
+    return -1;
   }
 
   INFO("rrdcached plugin: Successfully reconnected to RRDCacheD "
        "at %s",
        daemon_address);
-  return (0);
+  return 0;
 } /* int try_reconnect */
 
 static int rc_read(void) {
-  int status;
-  rrdc_stats_t *head;
-  _Bool retried = 0;
 
   value_list_t vl = VALUE_LIST_INIT;
   vl.values = &(value_t){.gauge = NAN};
   vl.values_len = 1;
 
   if (daemon_address == NULL)
-    return (-1);
+    return -1;
 
   if (!config_collect_stats)
-    return (-1);
+    return -1;
 
   if ((strncmp("unix:", daemon_address, strlen("unix:")) != 0) &&
       (daemon_address[0] != '/'))
@@ -302,14 +282,17 @@ static int rc_read(void) {
   sstrncpy(vl.plugin, "rrdcached", sizeof(vl.plugin));
 
   rrd_clear_error();
-  status = rrdc_connect(daemon_address);
+  int status = rrdc_connect(daemon_address);
   if (status != 0) {
     ERROR("rrdcached plugin: Failed to connect to RRDCacheD "
           "at %s: %s (status=%d)",
           daemon_address, rrd_get_error(), status);
-    return (-1);
+    return -1;
   }
 
+  rrdc_stats_t *head;
+  bool retried = false;
+
   while (42) {
     /* The RRD client lib does not provide any means for checking a
      * connection, hence we'll have to retry upon failed operations. */
@@ -320,7 +303,7 @@ static int rc_read(void) {
       break;
 
     if (!retried) {
-      retried = 1;
+      retried = true;
       if (try_reconnect() == 0)
         continue;
       /* else: report the error and fail */
@@ -328,7 +311,7 @@ static int rc_read(void) {
 
     ERROR("rrdcached plugin: rrdc_stats_get failed: %s (status=%i).",
           rrd_get_error(), status);
-    return (-1);
+    return -1;
   }
 
   for (rrdc_stats_t *ptr = head; ptr != NULL; ptr = ptr->next) {
@@ -376,66 +359,60 @@ static int rc_read(void) {
 
   rrdc_stats_free(head);
 
-  return (0);
+  return 0;
 } /* int rc_read */
 
 static int rc_init(void) {
   if (config_collect_stats)
     plugin_register_read("rrdcached", rc_read);
 
-  return (0);
+  return 0;
 } /* int rc_init */
 
 static int rc_write(const data_set_t *ds, const value_list_t *vl,
                     user_data_t __attribute__((unused)) * user_data) {
   char filename[PATH_MAX];
   char values[512];
-  char *values_array[2];
   int status;
-  _Bool retried = 0;
+  bool retried = false;
 
   if (daemon_address == NULL) {
     ERROR("rrdcached plugin: daemon_address == NULL.");
     plugin_unregister_write("rrdcached");
-    return (-1);
+    return -1;
   }
 
   if (strcmp(ds->type, vl->type) != 0) {
     ERROR("rrdcached plugin: DS type does not match value list type");
-    return (-1);
+    return -1;
   }
 
   if (value_list_to_filename(filename, sizeof(filename), vl) != 0) {
     ERROR("rrdcached plugin: value_list_to_filename failed.");
-    return (-1);
+    return -1;
   }
 
   if (value_list_to_string(values, sizeof(values), ds, vl) != 0) {
     ERROR("rrdcached plugin: value_list_to_string failed.");
-    return (-1);
+    return -1;
   }
 
-  values_array[0] = values;
-  values_array[1] = NULL;
-
   if (config_create_files) {
     struct stat statbuf;
 
     status = stat(filename, &statbuf);
     if (status != 0) {
       if (errno != ENOENT) {
-        char errbuf[1024];
-        ERROR("rrdcached plugin: stat (%s) failed: %s", filename,
-              sstrerror(errno, errbuf, sizeof(errbuf)));
-        return (-1);
+        ERROR("rrdcached plugin: stat (%s) failed: %s", filename, STRERRNO);
+        return -1;
       }
 
       status = cu_rrd_create_file(filename, ds, vl, &rrdcreate_config);
       if (status != 0) {
         ERROR("rrdcached plugin: cu_rrd_create_file (%s) failed.", filename);
-        return (-1);
+        return -1;
       } else if (rrdcreate_config.async)
-        return (0);
+        return 0;
     }
   }
 
@@ -445,9 +422,13 @@ static int rc_write(const data_set_t *ds, const value_list_t *vl,
     ERROR("rrdcached plugin: Failed to connect to RRDCacheD "
           "at %s: %s (status=%d)",
           daemon_address, rrd_get_error(), status);
-    return (-1);
+    return -1;
   }
 
+  char *values_array[2] = {
+          [0] = values, [1] = NULL,
+  };
+
   while (42) {
     /* The RRD client lib does not provide any means for checking a
      * connection, hence we'll have to retry upon failed operations. */
@@ -457,7 +438,7 @@ static int rc_write(const data_set_t *ds, const value_list_t *vl,
       break;
 
     if (!retried) {
-      retried = 1;
+      retried = true;
       if (try_reconnect() == 0)
         continue;
       /* else: report the error and fail */
@@ -465,36 +446,36 @@ static int rc_write(const data_set_t *ds, const value_list_t *vl,
 
     ERROR("rrdcached plugin: rrdc_update (%s, [%s], 1) failed: %s (status=%i)",
           filename, values_array[0], rrd_get_error(), status);
-    return (-1);
+    return -1;
   }
 
-  return (0);
+  return 0;
 } /* int rc_write */
 
 static int rc_flush(__attribute__((unused)) cdtime_t timeout, /* {{{ */
                     const char *identifier,
                     __attribute__((unused)) user_data_t *ud) {
-  char filename[PATH_MAX + 1];
-  int status;
-  _Bool retried = 0;
-
   if (identifier == NULL)
-    return (EINVAL);
+    return EINVAL;
+
+  char filename[PATH_MAX + 1];
 
   if (datadir != NULL)
-    ssnprintf(filename, sizeof(filename), "%s/%s.rrd", datadir, identifier);
+    snprintf(filename, sizeof(filename), "%s/%s.rrd", datadir, identifier);
   else
-    ssnprintf(filename, sizeof(filename), "%s.rrd", identifier);
+    snprintf(filename, sizeof(filename), "%s.rrd", identifier);
 
   rrd_clear_error();
-  status = rrdc_connect(daemon_address);
+  int status = rrdc_connect(daemon_address);
   if (status != 0) {
     ERROR("rrdcached plugin: Failed to connect to RRDCacheD "
           "at %s: %s (status=%d)",
           daemon_address, rrd_get_error(), status);
-    return (-1);
+    return -1;
   }
 
+  bool retried = false;
+
   while (42) {
     /* The RRD client lib does not provide any means for checking a
      * connection, hence we'll have to retry upon failed operations. */
@@ -504,7 +485,7 @@ static int rc_flush(__attribute__((unused)) cdtime_t timeout, /* {{{ */
       break;
 
     if (!retried) {
-      retried = 1;
+      retried = true;
       if (try_reconnect() == 0)
         continue;
       /* else: report the error and fail */
@@ -512,16 +493,16 @@ static int rc_flush(__attribute__((unused)) cdtime_t timeout, /* {{{ */
 
     ERROR("rrdcached plugin: rrdc_flush (%s) failed: %s (status=%i).", filename,
           rrd_get_error(), status);
-    return (-1);
+    return -1;
   }
   DEBUG("rrdcached plugin: rrdc_flush (%s): Success.", filename);
 
-  return (0);
+  return 0;
 } /* }}} int rc_flush */
 
 static int rc_shutdown(void) {
   rrdc_disconnect();
-  return (0);
+  return 0;
 } /* int rc_shutdown */
 
 void module_register(void) {
@@ -529,7 +510,3 @@ void module_register(void) {
   plugin_register_init("rrdcached", rc_init);
   plugin_register_shutdown("rrdcached", rc_shutdown);
 } /* void module_register */
-
-/*
- * vim: set sw=2 sts=2 et :
- */