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use std::ops::Drop;
use std::ptr;
use supercow::Phantomcow;
use error::Result;
use ffi;
use ffi::Sort;
use Database;
use Messages;
use MessagesOwner;
use Threads;
use ThreadsOwner;
#[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,
marker: Phantomcow<'d, Database>,
}
impl<'d> ThreadsOwner for Query<'d> {}
impl<'d> MessagesOwner for Query<'d> {}
impl<'d> Query<'d> {
pub fn from_ptr<O: Into<Phantomcow<'d, Database>>>(
ptr: *mut ffi::notmuch_query_t,
owner: O,
) -> Query<'d> {
Query {
handle: QueryPtr { ptr },
marker: owner.into(),
}
}
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, Self>> {
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, self))
}
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, Self>> {
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, self))
}
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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