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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 12:34:54 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 12:34:54 +0000 |
commit | 0915b3ef56dfac3113cce55a59a5765dc94976be (patch) | |
tree | a8fea11d50b4f083e1bf0f90025ece7f0824784a /lib/base/math-script.cpp | |
parent | Initial commit. (diff) | |
download | icinga2-0915b3ef56dfac3113cce55a59a5765dc94976be.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.cpp | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/lib/base/math-script.cpp b/lib/base/math-script.cpp new file mode 100644 index 0000000..0060513 --- /dev/null +++ b/lib/base/math-script.cpp @@ -0,0 +1,185 @@ +/* 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)); +}); |