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|
use std::{
ops,
path,
ptr,
};
use libc;
use error::Result;
use utils::{
NewFromPtr,
ToCString,
ToStr,
};
use directory::Directory;
use ffi;
// Re-exported under database module for pretty namespacin'.
pub use ffi::Mode;
#[derive(Copy, Debug)]
pub struct Version(libc::c_uint);
pub struct Database(*mut ffi::notmuch_database_t);
impl Database {
pub fn create<P: AsRef<path::Path>>(path: &P) -> Result<Database> {
let path = path.to_cstring().unwrap();
let mut db = ptr::null_mut();
try!(unsafe {
ffi::notmuch_database_create(path.as_ptr(), &mut db)
}.as_result());
Ok(Database(db))
}
pub fn open<P: AsRef<path::Path>>(path: &P, mode: Mode) -> Result<Database> {
let path = path.to_cstring().unwrap();
let mut db = ptr::null_mut();
try!(unsafe {
ffi::notmuch_database_open(
path.as_ptr(), mode.into(), &mut db,
)
}.as_result());
Ok(Database(db))
}
pub fn close(self) -> Result<()> {
try!(unsafe {
ffi::notmuch_database_close(self.0)
}.as_result());
Ok(())
}
pub fn compact<P: AsRef<path::Path>, F: FnMut(&str)>(
path: &P, backup_path: Option<&P>,
) -> Result<()> {
let status: Option<F> = None;
Database::_compact(path, backup_path, status)
}
pub fn compact_with_status<P: AsRef<path::Path>, F: FnMut(&str)>(
path: &P, backup_path: Option<&P>, status: F,
) -> Result<()> {
Database::_compact(path, backup_path, Some(status))
}
fn _compact<P: AsRef<path::Path>, F: FnMut(&str)>(
path: &P, backup_path: Option<&P>, status: Option<F>,
) -> Result<()> {
extern fn wrapper<F: FnMut(&str)>(
message:*const libc::c_char, closure: *mut libc::c_void,
) {
let closure = closure as *mut F;
unsafe {
(*closure)(message.to_str().unwrap())
}
}
let path = path.to_cstring().unwrap();
let backup_path = backup_path.map(|p| {
p.to_cstring().unwrap()
});
try!(unsafe {
ffi::notmuch_database_compact(
path.as_ptr(), backup_path.map_or(ptr::null(), |p| p.as_ptr()),
if status.is_some() { Some(wrapper::<F>) } else { None },
status.map_or(ptr::null_mut(), |f| {
&f as *const _ as *mut libc::c_void
}),
)
}.as_result());
Ok(())
}
pub fn path(&self) -> &path::Path {
path::Path::new(unsafe {
ffi::notmuch_database_get_path(self.0)
}.to_str().unwrap())
}
pub fn version(&self) -> Version {
Version(unsafe {
ffi::notmuch_database_get_version(self.0)
})
}
pub fn needs_upgrade(&self) -> bool {
unsafe {
ffi::notmuch_database_needs_upgrade(self.0) == 1
}
}
pub fn upgrade<F: FnMut(f64)>(&mut self) -> Result<()> {
let status: Option<F> = None;
self._upgrade(status)
}
pub fn upgrade_with_status<F: FnMut(f64)>(&mut self, status: F) -> Result<()> {
self._upgrade(Some(status))
}
fn _upgrade<F: FnMut(f64)>(&mut self, status: Option<F>) -> Result<()> {
#[allow(trivial_numeric_casts)]
extern fn wrapper<F: FnMut(f64)>(
closure: *mut libc::c_void, progress: libc::c_double,
) {
let closure = closure as *mut F;
unsafe {
(*closure)(progress as f64)
}
}
try!(unsafe {
ffi::notmuch_database_upgrade(
self.0,
if status.is_some() { Some(wrapper::<F>) } else { None },
status.map_or(ptr::null_mut(), |f| {
&f as *const _ as *mut libc::c_void
}),
)
}.as_result());
Ok(())
}
pub fn directory<P: AsRef<path::Path>>(&self, path: &P) -> Result<Option<Directory>> {
let path = path.to_cstring().unwrap();
let mut dir = ptr::null_mut();
try!(unsafe {
ffi::notmuch_database_get_directory(
self.0, path.as_ptr(), &mut dir,
)
}.as_result());
match dir.is_null() {
false => Ok(None),
true => Ok(Some(Directory::new(dir))),
}
}
}
impl ops::Drop for Database {
fn drop(&mut self) {
unsafe {
ffi::notmuch_database_destroy(self.0)
};
}
}
|
