Module kdb_c_api::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.