Command line: Follow IEEE Std 1003.1, 2013 Edition

[netdata.git] / src / storage_number.h

diff --git a/src/storage_number.h b/src/storage_number.h
old mode 100755 (executable)
new mode 100644 (file)
index 2fba80a..382d9da
--- a/src/storage_number.h
+++ b/src/storage_number.h
@@ -1,4 +1,4 @@
-#include <inttypes.h>
+#include <stdint.h>
 
 #ifndef NETDATA_STORAGE_NUMBER_H
 #define NETDATA_STORAGE_NUMBER_H
@@ -11,16 +11,44 @@ typedef long double calculated_number;
 typedef long long collected_number;
 #define COLLECTED_NUMBER_FORMAT "%lld"
 
+/*
+typedef long double collected_number;
+#define COLLECTED_NUMBER_FORMAT "%0.7Lf"
+*/
+
 typedef int32_t storage_number;
 typedef uint32_t ustorage_number;
 #define STORAGE_NUMBER_FORMAT "%d"
 
-storage_number pack_storage_number(calculated_number value);
+#define SN_NOT_EXISTS          (0x0 << 24)
+#define SN_EXISTS                      (0x1 << 24)
+#define SN_EXISTS_RESET                (0x2 << 24)
+#define SN_EXISTS_UNDEF1       (0x3 << 24)
+#define SN_EXISTS_UNDEF2       (0x4 << 24)
+#define SN_EXISTS_UNDEF3       (0x5 << 24)
+#define SN_EXISTS_UNDEF4       (0x6 << 24)
+
+#define SN_FLAGS_MASK          (~(0x6 << 24))
+
+// extract the flags
+#define get_storage_number_flags(value) ((((storage_number)value) & (1 << 24)) | (((storage_number)value) & (2 << 24)) | (((storage_number)value) & (4 << 24)))
+
+// checks
+#define does_storage_number_exist(value) ((get_storage_number_flags(value) != 0)?1:0)
+#define did_storage_number_reset(value)  ((get_storage_number_flags(value) == SN_EXISTS_RESET)?1:0)
+
+storage_number pack_storage_number(calculated_number value, uint32_t flags);
 calculated_number unpack_storage_number(storage_number value);
 
+int print_calculated_number(char *str, calculated_number value);
+
 #define STORAGE_NUMBER_POSITIVE_MAX 167772150000000.0
 #define STORAGE_NUMBER_POSITIVE_MIN 0.00001
 #define STORAGE_NUMBER_NEGATIVE_MAX -0.00001
 #define STORAGE_NUMBER_NEGATIVE_MIN -167772150000000.0
 
+// accepted accuracy loss
+#define ACCURACY_LOSS 0.0001
+#define accuracy_loss(t1, t2) ((t1 == t2 || t1 == 0.0 || t2 == 0.0) ? 0.0 : (100.0 - ((t1 > t2) ? (t2 * 100.0 / t1 ) : (t1 * 100.0 / t2))))
+
 #endif /* NETDATA_STORAGE_NUMBER_H */