Module native

This module exposes bare C API functions. As most of them are provided with a “safe” wrapper function with an intuitive name and intuitive implementation for Rust, there is no gain to darely use these functions.

The only exceptions are k and knk which are not provided with a “safe” wrapper because these functions are using elipsis (...) as their argument.

Functions

b9^⚠

Serialize q object and return serialized q byte list object on success: otherwise null. Mode is either of:

d9^⚠

Deserialize a bytes into q object.

dj^⚠

Convert days from 2000.01.01 to a number expressed as yyyymmdd.

dl^⚠

Load C function as q function (K object).

dot^⚠

Apply a function to q list object .[func; args].

ee^⚠

Capture (and reset) error string into usual error object.

ja^⚠

Add a raw value to a q simple list and returns a pointer to the (potentially reallocated) K object.

jk^⚠

Add a q object to a q compound list. Returns a pointer to the (potentially reallocated) K object.

js^⚠

Add an internalized char array to a symbol list. Returns a pointer to the (potentially reallocated) K object.

jv^⚠

Append a q list object to a q list. Returns a pointer to the (potentially reallocated) K object.

k^⚠

Send a text query or evaluate the text query in a process which are loading the shared library. As this library is purposed to build shared object, the only choice of socket is 0. This executes against the kdb+ process in which it is loaded.

ka^⚠

Creates an atom of the specified type.

kb^⚠

Constructor of q bool object.

kc^⚠

Constructor of q char object.

kd^⚠

Constructor of q date object.

ke^⚠

Constructor of q real object.

kf^⚠

Constructor of q float object.

kg^⚠

Constructor of q byte object.

kh^⚠

Constructor of q short object.

ki^⚠

Constructor of q int object.

kj^⚠

Constructor of q long object.

knk^⚠

Constructor of q compound list.

knt^⚠

Constructor of q keyed table object.

kp^⚠

Constructor of q string object.

kpn^⚠

Constructor if q string object with a fixed length.

krr^⚠

Constructor of q error.

ks^⚠

Constructor of q symbol object.

kt^⚠

Constructor of q time object.

ktd^⚠

Constructor of simple q table object from q keyed table object.

ktj^⚠

Constructor of q timestamp from elapsed time in nanoseconds since kdb+ epoch (2000.01.01) or timespan object from nanoseconds.

ktn^⚠

Constructor of q simple list.

ku^⚠

Constructor of q GUID object.

kz^⚠

Constructor of q datetime object from the number of days since kdb+ epoch (2000.01.01).

m9^⚠

Release the memory allocated for the thread’s pool. Call when the thread is about to complete, releasing the memory allocated for that thread’s pool.

orr^⚠

Similar to krr but this function appends a system-error message to string S before passing it to krr.

r0^⚠

Decrement reference count of the q object. The decrement must be done when k function gets an error object whose type is qtype::ERROR and when you created an object but do not intend to return it to q side. See details on the reference page.

r1^⚠

Increment reference count of the q object. Increment must be done when you passed arguments to Rust function and intends to return it to q side or when you pass some K objects to k function and intend to use the parameter after the call. See details on the reference page.

sd0^⚠

Remove callback from the associated kdb+ socket and call kclose. Return null if the socket is invalid or not the one which had been registered by sd1.

sd0x^⚠

Remove callback from the associated kdb+ socket and call kclose if the given condition is satisfied. Return null if the socket is invalid or not the one which had been registered by sd1.

sd1^⚠

Register callback to the associated kdb+ socket.

setm^⚠

Set whether interning symbols uses a lock: lock is either 0 or 1. Returns the previously set value.

sn^⚠

Intern n chars from a char array. Returns an interned char array and should be used to add char array to a symbol vector.

ss^⚠

Intern a null-terminated char array. Returns an interned char array and should be used to add char array to a symbol vector.

xD^⚠

Constructor of q dictionary object.

xT^⚠

Constructor of q table object from q dictionary object.

ymd^⚠

Convert ymd to the number of days from 2000.01.01.