upgrade rusqlite, linked-hash-map/hashlink

With Rust 1.48.0, I was getting panics like "attempted to leave type
`linked_hash_map::Node<std::string::String,
raw_statement::RawStatement>` uninitialized, which is invalid". Looks
like this is due to a bug in linked-hash-map 0.5.2, fixed with 0.5.3.

Along the way, I see that rusqlite no longer uses this crate; it
switched to hashlink. Upgrade rusqlite and match that change for my own
use (video index LRU cache).

I'm still pulling in linked-hash-map via serde_yaml. I didn't even
realize I was using serde_yaml, but libpasta wants it. Seems a little
silly to me but that's something I might explore another day.
This commit is contained in:
Scott Lamb 2020-11-22 17:37:55 -08:00
parent d83bb1bf4d
commit 16825537b9
4 changed files with 69 additions and 38 deletions

53
Cargo.lock generated
View File

@ -15,6 +15,12 @@ dependencies = [
"const-random",
]
[[package]]
name = "ahash"
version = "0.4.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f6789e291be47ace86a60303502173d84af8327e3627ecf334356ee0f87a164c"
[[package]]
name = "ansi_term"
version = "0.9.0"
@ -390,7 +396,7 @@ version = "0.14.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "341b03eec276c30c6cdc640d8bd8c08eac9605064c3f9c4838f958dac06973bb"
dependencies = [
"ahash",
"ahash 0.2.18",
"cfg-if",
"chrono",
"crossbeam-channel",
@ -791,6 +797,24 @@ dependencies = [
"tokio-util",
]
[[package]]
name = "hashbrown"
version = "0.9.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d7afe4a420e3fe79967a00898cc1f4db7c8a49a9333a29f8a4bd76a253d5cd04"
dependencies = [
"ahash 0.4.6",
]
[[package]]
name = "hashlink"
version = "0.6.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d99cf782f0dc4372d26846bec3de7804ceb5df083c2d4462c0b8d2330e894fa8"
dependencies = [
"hashbrown",
]
[[package]]
name = "heck"
version = "0.3.1"
@ -1035,9 +1059,9 @@ dependencies = [
[[package]]
name = "libsqlite3-sys"
version = "0.17.3"
version = "0.20.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "56d90181c2904c287e5390186be820e5ef311a3c62edebb7d6ca3d6a48ce041d"
checksum = "64d31059f22935e6c31830db5249ba2b7ecd54fd73a9909286f0a67aa55c2fbd"
dependencies = [
"cc",
"pkg-config",
@ -1046,9 +1070,9 @@ dependencies = [
[[package]]
name = "linked-hash-map"
version = "0.5.2"
version = "0.5.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ae91b68aebc4ddb91978b11a1b02ddd8602a05ec19002801c5666000e05e0f83"
checksum = "8dd5a6d5999d9907cda8ed67bbd137d3af8085216c2ac62de5be860bd41f304a"
[[package]]
name = "lock_api"
@ -1068,15 +1092,6 @@ dependencies = [
"cfg-if",
]
[[package]]
name = "lru-cache"
version = "0.1.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "31e24f1ad8321ca0e8a1e0ac13f23cb668e6f5466c2c57319f6a5cf1cc8e3b1c"
dependencies = [
"linked-hash-map",
]
[[package]]
name = "maplit"
version = "1.0.2"
@ -1200,12 +1215,12 @@ dependencies = [
"cstr",
"failure",
"fnv",
"hashlink",
"itertools",
"lazy_static",
"libc",
"libpasta",
"log",
"lru-cache",
"moonfire-base",
"mylog",
"nix",
@ -1925,17 +1940,17 @@ dependencies = [
[[package]]
name = "rusqlite"
version = "0.22.0"
version = "0.24.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "57edf4c4cea4d7e0fab069acb5da9e8e8e5403c78abc81b1f37d83af02148ea5"
checksum = "7e3d4791ab5517217f51216a84a688b53c1ebf7988736469c538d02f46ddba68"
dependencies = [
"bitflags",
"fallible-iterator",
"fallible-streaming-iterator",
"hashlink",
"libsqlite3-sys",
"lru-cache",
"memchr",
"time 0.1.43",
"smallvec",
]
[[package]]

View File

@ -47,7 +47,7 @@ parking_lot = { version = "0.10", features = [] }
protobuf = { git = "https://github.com/stepancheg/rust-protobuf" }
reffers = "0.6.0"
ring = "0.14.6"
rusqlite = "0.22.0"
rusqlite = "0.24.1"
serde = { version = "1.0", features = ["derive"] }
serde_json = "1.0"
smallvec = "1.0"

View File

@ -18,11 +18,11 @@ blake2-rfc = "0.2.18"
cstr = "0.1.7"
failure = "0.1.1"
fnv = "1.0"
hashlink = "0.6.0"
lazy_static = "1.0"
libc = "0.2"
libpasta = "0.1.0-rc2"
log = "0.4"
lru-cache = "0.1"
mylog = { git = "https://github.com/scottlamb/mylog" }
nix = "0.17.0"
odds = { version = "0.4.0", features = ["std-vec"] }
@ -30,7 +30,7 @@ openssl = "0.10"
parking_lot = { version = "0.10", features = [] }
prettydiff = "0.3.1"
protobuf = { git = "https://github.com/stepancheg/rust-protobuf" }
rusqlite = "0.22.0"
rusqlite = "0.24.1"
smallvec = "1.0"
tempdir = "0.3"
time = "0.1"

View File

@ -62,9 +62,9 @@ use crate::schema;
use crate::signal;
use failure::{Error, bail, format_err};
use fnv::{FnvHashMap, FnvHashSet};
use hashlink::LinkedHashMap;
use itertools::Itertools;
use log::{error, info, trace};
use lru_cache::LruCache;
use openssl::hash;
use parking_lot::{Mutex,MutexGuard};
use protobuf::prelude::MessageField;
@ -87,6 +87,11 @@ use uuid::Uuid;
/// Expected schema version. See `guide/schema.md` for more information.
pub const EXPECTED_VERSION: i32 = 5;
/// Length of the video index cache.
/// The actual data structure is one bigger than this because we insert before we remove.
/// Make it one less than a power of two so that the data structure's size is efficient.
const VIDEO_INDEX_CACHE_LEN: usize = 1023;
const GET_RECORDING_PLAYBACK_SQL: &'static str = r#"
select
video_index
@ -652,7 +657,7 @@ pub struct LockedDatabase {
streams_by_id: BTreeMap<i32, Stream>,
cameras_by_uuid: BTreeMap<Uuid, i32>, // values are ids.
video_sample_entries_by_id: BTreeMap<i32, Arc<VideoSampleEntry>>,
video_index_cache: RefCell<LruCache<i64, Box<[u8]>, fnv::FnvBuildHasher>>,
video_index_cache: RefCell<LinkedHashMap<i64, Box<[u8]>, fnv::FnvBuildHasher>>,
on_flush: Vec<Box<dyn Fn() + Send>>,
}
@ -1339,20 +1344,30 @@ impl LockedDatabase {
// Committed path.
let mut cache = self.video_index_cache.borrow_mut();
if let Some(video_index) = cache.get_mut(&id.0) {
trace!("cache hit for recording {}", id);
return f(&RecordingPlayback { video_index });
use hashlink::linked_hash_map::RawEntryMut;
match cache.raw_entry_mut().from_key(&id.0) {
RawEntryMut::Occupied(mut occupied) => {
trace!("cache hit for recording {}", id);
occupied.to_back();
let video_index = occupied.get();
return f(&RecordingPlayback { video_index });
},
RawEntryMut::Vacant(vacant) => {
trace!("cache miss for recording {}", id);
let mut stmt = self.conn.prepare_cached(GET_RECORDING_PLAYBACK_SQL)?;
let mut rows = stmt.query_named(named_params!{":composite_id": id.0})?;
if let Some(row) = rows.next()? {
let video_index: VideoIndex = row.get(0)?;
let result = f(&RecordingPlayback { video_index: &video_index.0[..] });
vacant.insert(id.0, video_index.0);
if cache.len() > VIDEO_INDEX_CACHE_LEN {
cache.pop_front();
}
return result;
}
Err(format_err!("no such recording {}", id))
},
}
trace!("cache miss for recording {}", id);
let mut stmt = self.conn.prepare_cached(GET_RECORDING_PLAYBACK_SQL)?;
let mut rows = stmt.query_named(named_params!{":composite_id": id.0})?;
if let Some(row) = rows.next()? {
let video_index: VideoIndex = row.get(0)?;
let result = f(&RecordingPlayback { video_index: &video_index.0[..] });
cache.insert(id.0, video_index.0);
return result;
}
Err(format_err!("no such recording {}", id))
}
/// Queues for deletion the oldest recordings that aren't already queued.
@ -2020,7 +2035,8 @@ impl<C: Clocks + Clone> Database<C> {
cameras_by_uuid: BTreeMap::new(),
streams_by_id: BTreeMap::new(),
video_sample_entries_by_id: BTreeMap::new(),
video_index_cache: RefCell::new(LruCache::with_hasher(1024, Default::default())),
video_index_cache: RefCell::new(LinkedHashMap::with_capacity_and_hasher(
VIDEO_INDEX_CACHE_LEN + 1, Default::default())),
on_flush: Vec::new(),
})),
clocks,