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use std::ops::Drop;
use std::ptr;
use std::marker::PhantomData;
use error::Result;
use ffi;
use utils::FromPtr;
use Database;
use Messages;
use Threads;
use ffi::Sort;
#[derive(Debug)]
pub(crate) struct QueryPtr {
pub ptr: *mut ffi::notmuch_query_t
}
impl Drop for QueryPtr {
fn drop(&mut self) {
unsafe {
ffi::notmuch_query_destroy(self.ptr)
};
}
}
#[derive(Debug)]
pub struct Query<'d>{
pub(crate) handle: QueryPtr,
phantom: PhantomData<&'d Database>,
}
impl<'d> FromPtr<*mut ffi::notmuch_query_t> for Query<'d> {
fn from_ptr(ptr: *mut ffi::notmuch_query_t) -> Query<'d> {
Query{
handle: QueryPtr{ptr},
phantom: PhantomData
}
}
}
impl<'d> Query<'d> {
pub fn create(db: &'d Database, query_string: &str) -> Result<Self> {
db.create_query(query_string)
}
/// Specify the sorting desired for this query.
pub fn set_sort(self: &Self, sort: Sort)
{
unsafe {
ffi::notmuch_query_set_sort(
self.handle.ptr, sort.into(),
)
}
}
/// Return the sort specified for this query. See
/// `set_sort`.
pub fn sort(self: &Self) -> Sort
{
unsafe {
ffi::notmuch_query_get_sort(
self.handle.ptr,
)
}.into()
}
/// Filter messages according to the query and return
pub fn search_messages<'q>(self: &'d Self) -> Result<Messages<'q, 'd>>
{
let mut msgs = ptr::null_mut();
try!(unsafe {
ffi::notmuch_query_search_messages(
self.handle.ptr, &mut msgs,
)
}.as_result());
Ok(Messages::from_ptr(msgs))
}
pub fn count_messages(self: &Self) -> Result<u32>
{
let mut cnt = 0;
try!(unsafe {
ffi::notmuch_query_count_messages(
self.handle.ptr, &mut cnt,
)
}.as_result());
Ok(cnt)
}
pub fn search_threads<'q>(self: &'d Self) -> Result<Threads<'q, 'd>>
{
let mut thrds = ptr::null_mut();
try!(unsafe {
ffi::notmuch_query_search_threads(
self.handle.ptr, &mut thrds,
)
}.as_result());
Ok(Threads::from_ptr(thrds))
}
pub fn count_threads(self: &Self) -> Result<u32>
{
let mut cnt = 0;
try!(unsafe {
ffi::notmuch_query_count_threads(
self.handle.ptr, &mut cnt,
)
}.as_result());
Ok(cnt)
}
}
unsafe impl<'d> Send for Query<'d> {}
unsafe impl<'d> Sync for Query<'d> {}
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