Browse Source

Add an SQLite DB for layouts

master
Jirka Sejkora 4 years ago
parent
commit
e819099f92
  1. 92
      Cargo.lock
  2. 1
      Cargo.toml
  3. 59
      src/db.rs
  4. 6
      src/main.rs

92
Cargo.lock

@ -1,5 +1,17 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "ahash"
version = "0.4.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "739f4a8db6605981345c5654f3a85b056ce52f37a39d34da03f25bf2151ea16e"
[[package]]
name = "bitflags"
version = "1.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
[[package]]
name = "byteorder"
version = "1.3.4"
@ -40,6 +52,18 @@ version = "0.3.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a357d28ed41a50f9c765dbfe56cbc04a64e53e5fc58ba79fbc34c10ef3df831f"
[[package]]
name = "fallible-iterator"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4443176a9f2c162692bd3d352d745ef9413eec5782a80d8fd6f8a1ac692a07f7"
[[package]]
name = "fallible-streaming-iterator"
version = "0.1.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7360491ce676a36bf9bb3c56c1aa791658183a54d2744120f27285738d90465a"
[[package]]
name = "getrandom"
version = "0.2.0"
@ -51,6 +75,24 @@ dependencies = [
"wasi",
]
[[package]]
name = "hashbrown"
version = "0.9.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d7afe4a420e3fe79967a00898cc1f4db7c8a49a9333a29f8a4bd76a253d5cd04"
dependencies = [
"ahash",
]
[[package]]
name = "hashlink"
version = "0.6.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d99cf782f0dc4372d26846bec3de7804ceb5df083c2d4462c0b8d2330e894fa8"
dependencies = [
"hashbrown",
]
[[package]]
name = "indicatif"
version = "0.15.0"
@ -84,12 +126,34 @@ version = "0.2.81"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1482821306169ec4d07f6aca392a4681f66c75c9918aa49641a2595db64053cb"
[[package]]
name = "libsqlite3-sys"
version = "0.20.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "64d31059f22935e6c31830db5249ba2b7ecd54fd73a9909286f0a67aa55c2fbd"
dependencies = [
"pkg-config",
"vcpkg",
]
[[package]]
name = "memchr"
version = "2.3.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0ee1c47aaa256ecabcaea351eae4a9b01ef39ed810004e298d2511ed284b1525"
[[package]]
name = "number_prefix"
version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "17b02fc0ff9a9e4b35b3342880f48e896ebf69f2967921fe8646bf5b7125956a"
[[package]]
name = "pkg-config"
version = "0.3.19"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3831453b3449ceb48b6d9c7ad7c96d5ea673e9b470a1dc578c2ce6521230884c"
[[package]]
name = "ppv-lite86"
version = "0.2.10"
@ -104,6 +168,7 @@ dependencies = [
"indicatif",
"itertools",
"rand",
"rusqlite",
]
[[package]]
@ -161,6 +226,27 @@ version = "0.6.21"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3b181ba2dcf07aaccad5448e8ead58db5b742cf85dfe035e2227f137a539a189"
[[package]]
name = "rusqlite"
version = "0.24.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d5f38ee71cbab2c827ec0ac24e76f82eca723cee92c509a65f67dee393c25112"
dependencies = [
"bitflags",
"fallible-iterator",
"fallible-streaming-iterator",
"hashlink",
"libsqlite3-sys",
"memchr",
"smallvec",
]
[[package]]
name = "smallvec"
version = "1.6.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fe0f37c9e8f3c5a4a66ad655a93c74daac4ad00c441533bf5c6e7990bb42604e"
[[package]]
name = "terminal_size"
version = "0.1.15"
@ -177,6 +263,12 @@ version = "0.1.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9337591893a19b88d8d87f2cec1e73fad5cdfd10e5a6f349f498ad6ea2ffb1e3"
[[package]]
name = "vcpkg"
version = "0.2.11"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b00bca6106a5e23f3eee943593759b7fcddb00554332e856d990c893966879fb"
[[package]]
name = "wasi"
version = "0.9.0+wasi-snapshot-preview1"

1
Cargo.toml

@ -11,6 +11,7 @@ byteorder = "1.3.4"
rand = "0.8.0"
indicatif = "0.15.0"
itertools = "0.10.0"
rusqlite = "0.24.2"
[[bin]]
name = "prague"

59
src/db.rs

@ -0,0 +1,59 @@
use crate::city::House;
use rusqlite::{Connection, NO_PARAMS, params, Result};
use std::collections::HashMap;
pub struct LayoutDB {
connection: Connection,
layouts: Vec<SavedLayout>
}
pub struct SavedLayout {
id: usize,
houses: Vec<House>
}
impl LayoutDB {
pub fn from_file(filename: &str) -> Result<Self> {
let connection = Connection::open(filename)?;
let mut layouts: HashMap<u32, Vec<(u32, u32)>> = HashMap::new();
// We need to dispose the statement so we can move the connection later
{
let mut stmt = connection.prepare("SELECT layout_id, x, y FROM houses")?;
let mut rows = stmt.query(NO_PARAMS)?;
while let Some(row) = rows.next()? {
let id: u32 = row.get(0)?;
let x: u32 = row.get(1)?;
let y: u32 = row.get(2)?;
layouts.entry(id).or_default().push((x, y));
}
}
let layouts = layouts.into_iter().map(|(id, xy_pairs)|
SavedLayout
{
id: id as usize,
houses: xy_pairs.into_iter().map(|(x, y)| House { x: x as usize, y: y as usize }).collect(),
}
).collect();
Ok(LayoutDB { connection, layouts })
}
pub fn layouts(&self) -> &Vec<SavedLayout> {
&self.layouts
}
pub fn add_layout(&self, houses: &Vec<House>, fully_optimized: bool) -> Result<()> {
self.connection.execute("INSERT INTO layouts (is_fully_optimized) VALUES (?1)",
params![fully_optimized])?;
let layout_id = self.connection.last_insert_rowid();
for house in houses {
self.connection.execute("INSERT INTO houses (layout_id, x, y) VALUES (?1, ?2, ?3)",
params![layout_id, house.x as u32, house.y as u32])?;
}
Ok(())
}
}

6
src/main.rs

@ -4,12 +4,17 @@ use std::fmt;
use std::fmt::Formatter;
use std::collections::{HashMap, HashSet};
use city::{HouseLayout, City, House};
use crate::db::LayoutDB;
mod optimization;
mod population;
mod city;
mod db;
fn main() {
let db = LayoutDB::from_file("layouts.sqlite").expect("Failed to load the DB");
eprintln!("Loaded the DB, {} stored layouts", db.layouts().len());
let city = City::read_from_file("01.in");
let mut best_price: Option<u32> = None;
@ -45,6 +50,7 @@ fn main() {
break;
}
}
db.add_layout(&layout.houses(), true).expect("Failed to insert into DB");
}
}

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