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-- Put common type definition at the same place for convenience
-- and standarlization
local ffi = require "ffi"
--[[
TYPE_ptr: usually used to define a pointer (to cast or something)
char* var_name; // <- we use char_ptr
ptr_of_TYPE: usually used to pass the pointer of an object that
is already allocated. so that we can also set value of it as well
int p = 2; // ptr_of_int(); ptr_of_int[0] = 2;
plus_one(&p); // <- we use ptr_of_int
]]
return {
void_ptr = ffi.typeof("void *"),
ptr_of_uint64 = ffi.typeof("uint64_t[1]"),
ptr_of_uint = ffi.typeof("unsigned int[1]"),
ptr_of_size_t = ffi.typeof("size_t[1]"),
ptr_of_int = ffi.typeof("int[1]"),
null = ffi.new("void *"), -- hack wher ngx.null is not available
uchar_array = ffi.typeof("unsigned char[?]"),
uchar_ptr = ffi.typeof("unsigned char*"),
SIZE_MAX = math.pow(2, 64), -- nginx set _FILE_OFFSET_BITS to 64
}
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