HashLink Extension

This library is created to learn how the bridge between Haxe and C works. It only has few functions:

• HLExt.new(name:String, birthYear:Int, currentYear:Int): Creates an struct in C side with given arguments, returns that struct and we save it in the Haxe side.

struct _result {
    vbyte *greeting;
    int age;
};

• HLExt.getGreeting(): Get the name from C struct.
• HLExt.getAge(): Get the age from C struct.
• static HLExt.getHaxeObject(name:String, birthYear:Int, currentYear:Int): returns a Haxe object instead of a pointer to C side.

Compiling HDLL file

To create the *.hdll file execute this command:

gcc -O3 -shared -o hlext.hdll -std=c11 hlextLib/hlext.c -I/usr/local/include -lhl

• gcc: compiler call
• -O3: level 3 optimization
• -shared: flag to tell this is a shared library
• -o file.out: define the output file
• -std=standard: C language standard
• hlextLib/hlext.c: C file to compile
• -Idirectory: Include the directory where headers files are. In this case only hl.h is needed
• -llib: Use lib library

Once we create the hlext.hdll file, move it where the other *.hdll files are. In may case they are at /usr/local/lib

mv hlext.hdll /usr/local/lib

Usage

See Main.hx.

TODO

• Try compiling with HLC.
• Try on Win / Linux.
• Add a callback to C side and then call to Haxe from C.