X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=src%2Fdaemon%2Fmeta_data.c;h=a11fccb2e2fb125b02ffc9d8d048ad58f3388972;hb=e1bfa71aca1f37c2f293dc9adb44065c6e7a9ad9;hp=f4a340cb1a41013b50a1c0506afc84214cb28e07;hpb=ab11d1b4db61f750f51be6e41dbe8320d3c65404;p=collectd.git

diff --git a/src/daemon/meta_data.c b/src/daemon/meta_data.c
index f4a340cb..a11fccb2 100644
--- a/src/daemon/meta_data.c
+++ b/src/daemon/meta_data.c
@@ -25,9 +25,13 @@
  **/
 
 #include "collectd.h"
+
+#include "common.h"
 #include "plugin.h"
 #include "meta_data.h"
 
+#define MD_MAX_NONSTRING_CHARS 128
+
 /*
  * Data types
  */
@@ -332,8 +336,6 @@ meta_data_t *meta_data_clone (meta_data_t *orig) /* {{{ */
 
 int meta_data_clone_merge (meta_data_t **dest, meta_data_t *orig) /* {{{ */
 {
-  meta_entry_t *e;
-
   if (orig == NULL)
     return (0);
 
@@ -343,7 +345,7 @@ int meta_data_clone_merge (meta_data_t **dest, meta_data_t *orig) /* {{{ */
   }
 
   pthread_mutex_lock (&orig->lock);
-  for (e=orig->head; e != NULL; e = e->next)
+  for (meta_entry_t *e=orig->head; e != NULL; e = e->next)
   {
     md_entry_insert_clone((*dest), e);
   }
@@ -364,14 +366,12 @@ void meta_data_destroy (meta_data_t *md) /* {{{ */
 
 int meta_data_exists (meta_data_t *md, const char *key) /* {{{ */
 {
-  meta_entry_t *e;
-
   if ((md == NULL) || (key == NULL))
     return (-EINVAL);
 
   pthread_mutex_lock (&md->lock);
 
-  for (e = md->head; e != NULL; e = e->next)
+  for (meta_entry_t *e = md->head; e != NULL; e = e->next)
   {
     if (strcasecmp (key, e->key) == 0)
     {
@@ -386,14 +386,12 @@ int meta_data_exists (meta_data_t *md, const char *key) /* {{{ */
 
 int meta_data_type (meta_data_t *md, const char *key) /* {{{ */
 {
-  meta_entry_t *e;
-
   if ((md == NULL) || (key == NULL))
     return -EINVAL;
 
   pthread_mutex_lock (&md->lock);
 
-  for (e = md->head; e != NULL; e = e->next)
+  for (meta_entry_t *e = md->head; e != NULL; e = e->next)
   {
     if (strcasecmp (key, e->key) == 0)
     {
@@ -409,14 +407,13 @@ int meta_data_type (meta_data_t *md, const char *key) /* {{{ */
 int meta_data_toc (meta_data_t *md, char ***toc) /* {{{ */
 {
   int i = 0, count = 0;
-  meta_entry_t *e;
 
   if ((md == NULL) || (toc == NULL))
     return -EINVAL;
 
   pthread_mutex_lock (&md->lock);
 
-  for (e = md->head; e != NULL; e = e->next)
+  for (meta_entry_t *e = md->head; e != NULL; e = e->next)
     ++count;
 
   if (count == 0)
@@ -426,7 +423,7 @@ int meta_data_toc (meta_data_t *md, char ***toc) /* {{{ */
   }
 
   *toc = calloc(count, sizeof(**toc));
-  for (e = md->head; e != NULL; e = e->next)
+  for (meta_entry_t *e = md->head; e != NULL; e = e->next)
     (*toc)[i++] = strdup(e->key);
 
   pthread_mutex_unlock (&md->lock);
@@ -735,4 +732,68 @@ int meta_data_get_boolean (meta_data_t *md, /* {{{ */
   return (0);
 } /* }}} int meta_data_get_boolean */
 
+int meta_data_as_string (meta_data_t *md, /* {{{ */
+    const char *key, char **value)
+{
+  meta_entry_t *e;
+  char *actual;
+  char buffer[MD_MAX_NONSTRING_CHARS];  /* For non-string types. */
+  char *temp;
+  int type;
+
+  if ((md == NULL) || (key == NULL) || (value == NULL))
+    return (-EINVAL);
+
+  pthread_mutex_lock (&md->lock);
+
+  e = md_entry_lookup (md, key);
+  if (e == NULL)
+  {
+    pthread_mutex_unlock (&md->lock);
+    return (-ENOENT);
+  }
+
+  type = e->type;
+
+  switch (type)
+  {
+    case MD_TYPE_STRING:
+      actual = e->value.mv_string;
+      break;
+    case MD_TYPE_SIGNED_INT:
+      ssnprintf (buffer, sizeof (buffer), "%"PRIi64, e->value.mv_signed_int);
+      actual = buffer;
+      break;
+    case MD_TYPE_UNSIGNED_INT:
+      ssnprintf (buffer, sizeof (buffer), "%"PRIu64, e->value.mv_unsigned_int);
+      actual = buffer;
+      break;
+    case MD_TYPE_DOUBLE:
+      ssnprintf (buffer, sizeof (buffer), GAUGE_FORMAT, e->value.mv_double);
+      actual = buffer;
+      break;
+    case MD_TYPE_BOOLEAN:
+      actual = e->value.mv_boolean ? "true" : "false";
+      break;
+    default:
+      pthread_mutex_unlock (&md->lock);
+      ERROR ("meta_data_as_string: unknown type %d for key `%s'", type, key);
+      return (-ENOENT);
+  }
+
+  pthread_mutex_unlock (&md->lock);
+
+  temp = md_strdup (actual);
+  if (temp == NULL)
+  {
+    pthread_mutex_unlock (&md->lock);
+    ERROR ("meta_data_as_string: md_strdup failed for key `%s'.", key);
+    return (-ENOMEM);
+  }
+
+  *value = temp;
+
+  return (0);
+} /* }}} int meta_data_as_string */
+
 /* vim: set sw=2 sts=2 et fdm=marker : */