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//
// Copyright (c) 2019 RepliXio Ltd. All rights reserved.
// Use is subject to license terms.
//

use libc::{size_t, mode_t};
use libc::{c_void, c_char, c_int};

use crate::PMEMoid;


pub enum PMEMobjpool {}

#[allow(non_camel_case_types)]
pub type pmemobj_constr = unsafe extern "C" fn(pop: *mut PMEMobjpool, ptr: *mut c_void, arg: *mut c_void) -> c_int;

#[allow(dead_code)]
#[link(name = "pmemobj")]
extern "C" {
    pub fn pmemobj_open(path: *const c_char, layout: *const c_char) -> *mut PMEMobjpool;
    pub fn pmemobj_create(path: *const c_char,
                          layout: *const c_char,
                          poolsize: size_t,
                          mode: mode_t)
                          -> *mut PMEMobjpool;
    pub fn pmemobj_close(pop: *mut PMEMobjpool);

    // Object

    pub fn pmemobj_alloc(pop: *mut PMEMobjpool,
                         oidp: *mut PMEMoid,
                         size: size_t,
                         type_num: u64,
                         constructor: pmemobj_constr,
                         arg: *mut c_void
    ) -> c_int;
    pub fn pmemobj_free(oidp: *mut PMEMoid);

    pub fn pmemobj_memcpy_persist(pop: *mut PMEMobjpool,
                                  dest: *mut c_void,
                                  src: *const c_void,
                                  len: size_t);
    pub fn pmemobj_memset_persist(pop: *mut PMEMobjpool, dest: *mut c_void, c: c_int, len: size_t);
    pub fn pmemobj_persist(pop: *mut PMEMobjpool, addr: *const c_void, len: size_t);
    pub fn pmemobj_flush(pop: *mut PMEMobjpool, addr: *const c_void, len: size_t);
    pub fn pmemobj_drain(pop: *mut PMEMobjpool);

    // Error handling:

    pub fn pmemobj_errormsg() -> *const c_char;

    pub fn pmemobj_direct(oid: PMEMoid) -> *mut c_void;
}