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Corrected the warnings and errors issued by cargo clippy

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This commit is contained in:
Mendes 2022-05-01 16:05:39 +02:00
parent 3ba2c5b424
commit 948ff93cf1
2 changed files with 64 additions and 81 deletions
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26
src/rpc/layout.rs
View File

@ -195,8 +195,8 @@ impl ClusterLayout {
.collect::<Vec<(String, usize)>>();
//We create an indexing of the zones
let mut zone_id = HashMap::<String, usize>::new();
for i in 0..part_per_zone_vec.len() {
zone_id.insert(part_per_zone_vec[i].0.clone(), i);
for (i, ppz) in part_per_zone_vec.iter().enumerate() {
zone_id.insert(ppz.0.clone(), i);
}
//We compute a candidate for the new partition to zone
@ -212,7 +212,7 @@ impl ClusterLayout {
let mut node_assignation = vec![vec![None; self.replication_factor]; nb_partitions];
//We will decrement part_per_nod to keep track of the number
//of partitions that we still have to associate.
let mut part_per_nod = part_per_nod.clone();
let mut part_per_nod = part_per_nod;
//We minimize the distance to the former assignation(if any)
@ -265,7 +265,7 @@ impl ClusterLayout {
&& part_per_nod[*id] > 0
})
.collect();
assert!(possible_nodes.len() > 0);
assert!(!possible_nodes.is_empty());
//We randomly pick a node
if let Some(nod) = possible_nodes.choose(&mut rng) {
node_assignation[i][j] = Some(*nod);
@ -277,12 +277,12 @@ impl ClusterLayout {
//We write the assignation in the 1D table
self.ring_assignation_data = Vec::<CompactNodeType>::new();
for i in 0..nb_partitions {
for j in 0..self.replication_factor {
if let Some(id) = node_assignation[i][j] {
for ass in node_assignation {
for nod in ass {
if let Some(id) = nod {
self.ring_assignation_data.push(id as CompactNodeType);
} else {
assert!(false)
panic!()
}
}
}
@ -318,7 +318,7 @@ impl ClusterLayout {
self.node_id_vec = new_node_id_vec;
self.ring_assignation_data = vec![];
return node_assignation;
node_assignation
}
///This function compute the number of partition to assign to
@ -345,7 +345,7 @@ impl ClusterLayout {
//Compute the optimal number of partitions per zone
let sum_capacities: u32 = zone_capacity.values().sum();
if sum_capacities <= 0 {
if sum_capacities == 0 {
println!("No storage capacity in the network.");
return None;
}
@ -493,14 +493,10 @@ impl ClusterLayout {
.map(|id_nod| match self.node_role(id_nod) {
Some(NodeRole {
zone: _,
capacity,
capacity: Some(c),
tags: _,
}) => {
if let Some(c) = capacity {
*c
} else {
0
}
}
_ => 0,
})

119
src/util/bipartite.rs
View File

@ -31,8 +31,8 @@ struct WeightedEdge {
* as possible to old_match.
* */
pub fn optimize_matching(
old_match: &Vec<Vec<usize>>,
new_match: &Vec<Vec<usize>>,
old_match: &[Vec<usize>],
new_match: &[Vec<usize>],
nb_right: usize,
) -> Vec<Vec<usize>> {
let nb_left = old_match.len();
@ -72,16 +72,11 @@ pub fn optimize_matching(
//Discovering and flipping a cycle with positive weight in this
//graph will make the matching closer to old_match.
//We use Bellman Ford algorithm to discover positive cycles
loop {
if let Some(cycle) = positive_cycle(&edge_vec, nb_left, nb_right) {
for i in cycle {
//We flip the edges of the cycle.
(edge_vec[i].u, edge_vec[i].v) = (edge_vec[i].v, edge_vec[i].u);
edge_vec[i].w *= -1;
}
} else {
//If there is no cycle, we return the optimal matching.
break;
while let Some(cycle) = positive_cycle(&edge_vec, nb_left, nb_right) {
for i in cycle {
//We flip the edges of the cycle.
(edge_vec[i].u, edge_vec[i].v) = (edge_vec[i].v, edge_vec[i].u);
edge_vec[i].w *= -1;
}
}
@ -97,7 +92,7 @@ pub fn optimize_matching(
//This function finds a positive cycle in a bipartite wieghted graph.
fn positive_cycle(
edge_vec: &Vec<WeightedEdge>,
edge_vec: &[WeightedEdge],
nb_left: usize,
nb_right: usize,
) -> Option<Vec<usize>> {
@ -122,8 +117,7 @@ fn positive_cycle(
//the number of partitions can be much larger than the
//number of nodes, we optimize that.
for _ in 0..(2 * nb_side_min) {
for j in 0..edge_vec.len() {
let e = edge_vec[j];
for (j, e) in edge_vec.iter().enumerate() {
if weight[e.v] < weight[e.u] + e.w {
weight[e.v] = weight[e.u] + e.w;
prev[e.v] = j;
@ -148,8 +142,7 @@ fn positive_cycle(
curr = edge_vec[prev[curr]].u;
}
//Now curr is on the cycle. We collect the edges ids.
let mut cycle = Vec::<usize>::new();
cycle.push(prev[curr]);
let mut cycle = vec![prev[curr]];
let mut cycle_vert = edge_vec[prev[curr]].u;
while cycle_vert != curr {
cycle.push(prev[cycle_vert]);
@ -180,16 +173,16 @@ pub fn dinic_compute_matching(left_cap_vec: Vec<u32>, right_cap_vec: Vec<u32>) -
// 0 will be the source
graph.push(vec![ed; left_cap_vec.len()]);
for i in 0..left_cap_vec.len() {
graph[0][i].c = left_cap_vec[i] as i32;
for (i, c) in left_cap_vec.iter().enumerate() {
graph[0][i].c = *c as i32;
graph[0][i].v = i + 2;
graph[0][i].rev = 0;
}
//1 will be the sink
graph.push(vec![ed; right_cap_vec.len()]);
for i in 0..right_cap_vec.len() {
graph[1][i].c = right_cap_vec[i] as i32;
for (i, c) in right_cap_vec.iter().enumerate() {
graph[1][i].c = *c as i32;
graph[1][i].v = i + 2 + left_cap_vec.len();
graph[1][i].rev = 0;
}
@ -267,58 +260,52 @@ pub fn dinic_compute_matching(left_cap_vec: Vec<u32>, right_cap_vec: Vec<u32>) -
let mut next_nbd = vec![0; nb_vertices];
let mut lifo = VecDeque::new();
let flow_upper_bound;
if let Some(x) = left_cap_vec.iter().max() {
flow_upper_bound = *x as i32;
let flow_upper_bound = if let Some(x) = left_cap_vec.iter().max() {
*x as i32
} else {
flow_upper_bound = 0;
assert!(false);
}
panic!();
};
lifo.push_back((0, flow_upper_bound));
loop {
if let Some((id_tmp, f_tmp)) = lifo.back() {
let id = *id_tmp;
let f = *f_tmp;
if id == 1 {
//The DFS reached the sink, we can add a
//residual flow.
lifo.pop_back();
while !lifo.is_empty() {
if let Some((id, _)) = lifo.pop_back() {
let nbd = next_nbd[id];
graph[id][nbd].flow += f;
let id_v = graph[id][nbd].v;
let nbd_v = graph[id][nbd].rev;
graph[id_v][nbd_v].flow -= f;
}
while let Some((id_tmp, f_tmp)) = lifo.back() {
let id = *id_tmp;
let f = *f_tmp;
if id == 1 {
//The DFS reached the sink, we can add a
//residual flow.
lifo.pop_back();
while !lifo.is_empty() {
if let Some((id, _)) = lifo.pop_back() {
let nbd = next_nbd[id];
graph[id][nbd].flow += f;
let id_v = graph[id][nbd].v;
let nbd_v = graph[id][nbd].rev;
graph[id_v][nbd_v].flow -= f;
}
lifo.push_back((0, flow_upper_bound));
continue;
}
//else we did not reach the sink
let nbd = next_nbd[id];
if nbd >= graph[id].len() {
//There is nothing to explore from id anymore
lifo.pop_back();
if let Some((parent, _)) = lifo.back() {
next_nbd[*parent] += 1;
}
continue;
}
//else we can try to send flow from id to its nbd
let new_flow = min(f, graph[id][nbd].c - graph[id][nbd].flow);
if level[graph[id][nbd].v] <= level[id] || new_flow == 0 {
//We cannot send flow to nbd.
next_nbd[id] += 1;
continue;
}
//otherwise, we send flow to nbd.
lifo.push_back((graph[id][nbd].v, new_flow));
} else {
break;
lifo.push_back((0, flow_upper_bound));
continue;
}
//else we did not reach the sink
let nbd = next_nbd[id];
if nbd >= graph[id].len() {
//There is nothing to explore from id anymore
lifo.pop_back();
if let Some((parent, _)) = lifo.back() {
next_nbd[*parent] += 1;
}
continue;
}
//else we can try to send flow from id to its nbd
let new_flow = min(f, graph[id][nbd].c - graph[id][nbd].flow);
if level[graph[id][nbd].v] <= level[id] || new_flow == 0 {
//We cannot send flow to nbd.
next_nbd[id] += 1;
continue;
}
//otherwise, we send flow to nbd.
lifo.push_back((graph[id][nbd].v, new_flow));
}
}