noit_metric, missed in last commit

src/noit_metric.h

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+/*
+ * Copyright (c) 2007, OmniTI Computer Consulting, Inc.
+ * All rights reserved.
+ * Copyright (c) 2015, Circonus, Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ *       copyright notice, this list of conditions and the following
+ *       disclaimer in the documentation and/or other materials provided
+ *       with the distribution.
+ *     * Neither the name OmniTI Computer Consulting, Inc. nor the names
+ *       of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written
+ *       permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _NOIT_METRIC_H
+#define _NOIT_METRIC_H
+
+#include "noit_defines.h"
+
+typedef enum {
+  METRIC_GUESS = '0',
+  METRIC_INT32 = 'i',
+  METRIC_UINT32 = 'I',
+  METRIC_INT64 = 'l',
+  METRIC_UINT64 = 'L',
+  METRIC_DOUBLE = 'n',
+  METRIC_STRING = 's'
+} metric_type_t;
+
+typedef struct {
+  char *metric_name;
+  metric_type_t metric_type;
+  union {
+    double *n;
+    int32_t *i;
+    u_int32_t *I;
+    int64_t *l;
+    u_int64_t *L;
+    char *s;
+    void *vp; /* used for clever assignments */
+  } metric_value;
+} metric_t;
+
+#endif