It must return the weight value.
Of course, the path of least resistance is to write in either C or plain.
In theory you can write an UDF in any language as long as its compiler is able to import standard C header, and emit standard dynamic libraries with properly exported functions.It's data is a binary blob in a certain internal format, and to extract individual ranking signals from that blob, you need to use either of the two sphinx_factors_XXX or sphinx_get_YYY_factor families of functions.Their voices have been distorted to protect their identities.So currently, you would never need to link english latvian dictionary pdf with the C-file, just the header would be sufficient.UDFs are completely supported in workersthreads mode only.UDFs can take integer (both 32-bit and 64-bit float, string, MVA, or packedfactors arguments.They will be called in the result set order.H / our library will be called, thus, so it must define / a version function named udfexample_ver int udfexample_ver return SPH_UDF_version; That protects you from accidentally loading a library with a mismatching UDF interface version into a newer or older searchd.Int testfunc_init ( SPH_UDF_init * init, SPH_UDF_args * args, char * error_message ) / allocate and initialize a little bit of temporary storage init- func_data malloc ( sizeof(int) int init- func_data 123; / return a success code return 0; void testfunc_deinit ( SPH_UDF_init * init.If we wanted to, say, allocate temporary storage for our function to use, or check upfront whether the arguments are of the supported types, then we would need to add two more functions, with UDF initialization and deinitialization, respectively.In other words, your UDFs will be called for just a single document at a time and are expected to return some value for that document.Most of the types map straightforwardly to the respective C types.So you might choose to either put all your project-specific plugins in a single common uber-library; or you might choose to have a separate library for every UDF and plugin; that is up to you.You get that type by calling your UDF with a packedfactor argument.This is the only mandatory function.Unfortunately, there photoshop elements 13 mac is no (easy) way for us to check for those mistakes when loading the function, and they could crash the server and/or result in unexpected results.You can check them in the initialization function and return an error if they are of an unsupported type.More importantly, it is vital that a) the calling convention is C (aka _cdecl b) arguments list matches the plugin system expectations exactly, and c) the return type matches the one you specify in create function.In the last case you must use args- fn_malloc function to allocate the returned string values.
At the very least, you will need the SPH_UDF_version constant to implement a proper version function.
Dll most likely in C or C; load that plugin into searchd using create plugin ; invoke it using the plugin specific calls (typically using this or that option).