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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 12:34:54 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 12:34:54 +0000
commit0915b3ef56dfac3113cce55a59a5765dc94976be (patch)
treea8fea11d50b4f083e1bf0f90025ece7f0824784a /lib/base/math-script.cpp
parentInitial commit. (diff)
downloadicinga2-0915b3ef56dfac3113cce55a59a5765dc94976be.tar.xz
icinga2-0915b3ef56dfac3113cce55a59a5765dc94976be.zip
Adding upstream version 2.13.6.upstream/2.13.6upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--lib/base/math-script.cpp185
1 files changed, 185 insertions, 0 deletions
diff --git a/lib/base/math-script.cpp b/lib/base/math-script.cpp
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+++ b/lib/base/math-script.cpp
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+/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
+
+#include "base/dictionary.hpp"
+#include "base/function.hpp"
+#include "base/functionwrapper.hpp"
+#include "base/scriptframe.hpp"
+#include "base/initialize.hpp"
+#include "base/namespace.hpp"
+#include <boost/math/special_functions/round.hpp>
+#include <cmath>
+
+using namespace icinga;
+
+static double MathAbs(double x)
+{
+ return std::fabs(x);
+}
+
+static double MathAcos(double x)
+{
+ return std::acos(x);
+}
+
+static double MathAsin(double x)
+{
+ return std::asin(x);
+}
+
+static double MathAtan(double x)
+{
+ return std::atan(x);
+}
+
+static double MathAtan2(double y, double x)
+{
+ return std::atan2(y, x);
+}
+
+static double MathCeil(double x)
+{
+ return std::ceil(x);
+}
+
+static double MathCos(double x)
+{
+ return std::cos(x);
+}
+
+static double MathExp(double x)
+{
+ return std::exp(x);
+}
+
+static double MathFloor(double x)
+{
+ return std::floor(x);
+}
+
+static double MathLog(double x)
+{
+ return std::log(x);
+}
+
+static Value MathMax(const std::vector<Value>& args)
+{
+ bool first = true;
+ Value result = -INFINITY;
+
+ for (const Value& arg : args) {
+ if (first || arg > result) {
+ first = false;
+ result = arg;
+ }
+ }
+
+ return result;
+}
+
+static Value MathMin(const std::vector<Value>& args)
+{
+ bool first = true;
+ Value result = INFINITY;
+
+ for (const Value& arg : args) {
+ if (first || arg < result) {
+ first = false;
+ result = arg;
+ }
+ }
+
+ return result;
+}
+
+static double MathPow(double x, double y)
+{
+ return std::pow(x, y);
+}
+
+static double MathRandom()
+{
+ return (double)std::rand() / RAND_MAX;
+}
+
+static double MathRound(double x)
+{
+ return boost::math::round(x);
+}
+
+static double MathSin(double x)
+{
+ return std::sin(x);
+}
+
+static double MathSqrt(double x)
+{
+ return std::sqrt(x);
+}
+
+static double MathTan(double x)
+{
+ return std::tan(x);
+}
+
+static bool MathIsnan(double x)
+{
+ return boost::math::isnan(x);
+}
+
+static bool MathIsinf(double x)
+{
+ return boost::math::isinf(x);
+}
+
+static double MathSign(double x)
+{
+ if (x > 0)
+ return 1;
+ else if (x < 0)
+ return -1;
+ else
+ return 0;
+}
+
+INITIALIZE_ONCE([]() {
+ auto mathNSBehavior = new ConstNamespaceBehavior();
+ Namespace::Ptr mathNS = new Namespace(mathNSBehavior);
+
+ /* Constants */
+ mathNS->Set("E", 2.71828182845904523536);
+ mathNS->Set("LN2", 0.693147180559945309417);
+ mathNS->Set("LN10", 2.30258509299404568402);
+ mathNS->Set("LOG2E", 1.44269504088896340736);
+ mathNS->Set("LOG10E", 0.434294481903251827651);
+ mathNS->Set("PI", 3.14159265358979323846);
+ mathNS->Set("SQRT1_2", 0.707106781186547524401);
+ mathNS->Set("SQRT2", 1.41421356237309504880);
+
+ /* Methods */
+ mathNS->Set("abs", new Function("Math#abs", MathAbs, { "x" }, true));
+ mathNS->Set("acos", new Function("Math#acos", MathAcos, { "x" }, true));
+ mathNS->Set("asin", new Function("Math#asin", MathAsin, { "x" }, true));
+ mathNS->Set("atan", new Function("Math#atan", MathAtan, { "x" }, true));
+ mathNS->Set("atan2", new Function("Math#atan2", MathAtan2, { "x", "y" }, true));
+ mathNS->Set("ceil", new Function("Math#ceil", MathCeil, { "x" }, true));
+ mathNS->Set("cos", new Function("Math#cos", MathCos, { "x" }, true));
+ mathNS->Set("exp", new Function("Math#exp", MathExp, { "x" }, true));
+ mathNS->Set("floor", new Function("Math#floor", MathFloor, { "x" }, true));
+ mathNS->Set("log", new Function("Math#log", MathLog, { "x" }, true));
+ mathNS->Set("max", new Function("Math#max", MathMax, {}, true));
+ mathNS->Set("min", new Function("Math#min", MathMin, {}, true));
+ mathNS->Set("pow", new Function("Math#pow", MathPow, { "x", "y" }, true));
+ mathNS->Set("random", new Function("Math#random", MathRandom, {}, true));
+ mathNS->Set("round", new Function("Math#round", MathRound, { "x" }, true));
+ mathNS->Set("sin", new Function("Math#sin", MathSin, { "x" }, true));
+ mathNS->Set("sqrt", new Function("Math#sqrt", MathSqrt, { "x" }, true));
+ mathNS->Set("tan", new Function("Math#tan", MathTan, { "x" }, true));
+ mathNS->Set("isnan", new Function("Math#isnan", MathIsnan, { "x" }, true));
+ mathNS->Set("isinf", new Function("Math#isinf", MathIsinf, { "x" }, true));
+ mathNS->Set("sign", new Function("Math#sign", MathSign, { "x" }, true));
+
+ mathNSBehavior->Freeze();
+
+ Namespace::Ptr systemNS = ScriptGlobal::Get("System");
+ systemNS->SetAttribute("Math", new ConstEmbeddedNamespaceValue(mathNS));
+});