Merge branch 'collectd-5.4'

[collectd.git] / src / dbi.c

diff --git a/src/dbi.c b/src/dbi.c
index 223e159..a7963ea 100644 (file)
--- a/src/dbi.c
+++ b/src/dbi.c
@@ -1,6 +1,6 @@
 /**
  * collectd - src/dbi.c
- * Copyright (C) 2008-2013  Florian octo Forster
+ * Copyright (C) 2008-2015  Florian octo Forster
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -32,9 +32,18 @@
 
 #include <dbi/dbi.h>
 
-#ifdef HAVE_LIBDBI_R
-  dbi_inst inst = NULL;
+/* libdbi 0.9.0 introduced a new thread-safe interface and marked the old
+ * functions "deprecated". These macros convert the new functions to their old
+ * counterparts for backwards compatibility. */
+#if !defined(LIBDBI_VERSION) || (LIBDBI_VERSION < 900)
+# define HAVE_LEGACY_LIBDBI 1
+# define dbi_initialize_r(a,inst) dbi_initialize(a)
+# define dbi_shutdown_r(inst) dbi_shutdown()
+# define dbi_set_verbosity_r(a,inst) dbi_set_verbosity(a)
+# define dbi_driver_list_r(a,inst) dbi_driver_list(a)
+# define dbi_driver_open_r(a,inst) dbi_driver_open(a)
 #endif
+
 /*
  * Data types
  */
@@ -71,6 +80,9 @@ typedef struct cdbi_database_s cdbi_database_t; /* }}} */
 /*
  * Global variables
  */
+#if !defined(HAVE_LEGACY_LIBDBI) || !HAVE_LEGACY_LIBDBI
+static dbi_inst          dbi_instance  = 0;
+#endif
 static udb_query_t     **queries       = NULL;
 static size_t            queries_num   = 0;
 static cdbi_database_t **databases     = NULL;
@@ -134,7 +146,7 @@ static int cdbi_result_get_field (dbi_result res, /* {{{ */
   else if (src_type == DBI_TYPE_STRING)
   {
     const char *value;
-
+    
     value = dbi_result_get_string_idx (res, index);
     if (value == NULL)
       sstrncpy (buffer, "", buffer_size);
@@ -200,7 +212,7 @@ static void cdbi_database_free (cdbi_database_t *db) /* {{{ */
  *     </Result>
  *     ...
  *   </Query>
- *
+ *     
  *   <Database "plugin_instance1">
  *     Driver "mysql"
  *     DriverOption "hostname" "localhost"
@@ -454,24 +466,20 @@ static int cdbi_init (void) /* {{{ */
     return (-1);
   }
 
-#ifdef HAVE_LIBDBI_R
-  status = dbi_initialize_r (NULL, &inst);
-#else
-  status = dbi_initialize (NULL);
-#endif
+  status = dbi_initialize_r (/* driverdir = */ NULL, &dbi_instance);
   if (status < 0)
   {
-    ERROR ("dbi plugin: cdbi_init: dbi_initialize failed with status %i.",
+    ERROR ("dbi plugin: cdbi_init: dbi_initialize_r failed with status %i.",
         status);
     return (-1);
   }
   else if (status == 0)
   {
-    ERROR ("dbi plugin: `dbi_initialize' could not load any drivers. Please "
+    ERROR ("dbi plugin: `dbi_initialize_r' could not load any drivers. Please "
         "install at least one `DBD' or check your installation.");
     return (-1);
   }
-  DEBUG ("dbi plugin: cdbi_init: dbi_initialize reports %i driver%s.",
+  DEBUG ("dbi plugin: cdbi_init: dbi_initialize_r reports %i driver%s.",
       status, (status == 1) ? "" : "s");
 
   return (0);
@@ -679,26 +687,16 @@ static int cdbi_connect_database (cdbi_database_t *db) /* {{{ */
     db->connection = NULL;
   }
 
-#ifdef HAVE_LIBDBI_R
-  driver = dbi_driver_open_r (db->driver, inst);
-#else
-  driver = dbi_driver_open (db->driver);
-#endif
+  driver = dbi_driver_open_r (db->driver, dbi_instance);
   if (driver == NULL)
   {
-    ERROR ("dbi plugin: cdbi_connect_database: dbi_driver_open (%s) failed.",
+    ERROR ("dbi plugin: cdbi_connect_database: dbi_driver_open_r (%s) failed.",
         db->driver);
     INFO ("dbi plugin: Maybe the driver isn't installed? "
         "Known drivers are:");
-#ifdef HAVE_LIBDBI_R
-    for (driver = dbi_driver_list_r (NULL, inst);
+    for (driver = dbi_driver_list_r (NULL, dbi_instance);
         driver != NULL;
-        driver = dbi_driver_list_r (driver, inst))
-#else
-    for (driver = dbi_driver_list (NULL);
-        driver != NULL;
-        driver = dbi_driver_list (driver))
-#endif
+        driver = dbi_driver_list_r (driver, dbi_instance))
     {
       INFO ("dbi plugin: * %s", dbi_driver_get_name (driver));
     }