From d52205e3c4a8849ee698f22837fce46395dbfd15 Mon Sep 17 00:00:00 2001
From: Shadaj Laddad <shadaj@users.noreply.github.com>
Date: Sat, 20 Apr 2024 00:09:39 -0700
Subject: [PATCH] Don't use Instant::now on WASM

---
 postgres/Cargo.toml    |  3 +++
 src/managed/metrics.rs |  7 +++++++
 src/managed/mod.rs     | 10 ++++++++--
 3 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/postgres/Cargo.toml b/postgres/Cargo.toml
index 4991d8c7..c575e7d0 100644
--- a/postgres/Cargo.toml
+++ b/postgres/Cargo.toml
@@ -31,6 +31,9 @@ tokio = { version = "1.29", features = ["rt"] }
 tokio-postgres = { version = "0.7.9", default-features = false }
 tracing = "0.1.37"
 
+[target.'cfg(target_arch = "wasm32")'.dependencies]
+getrandom = { version = "0.2", features = ["js"] }
+
 [dev-dependencies]
 config = { version = "0.14", features = ["json"] }
 dotenvy = "0.15.0"
diff --git a/src/managed/metrics.rs b/src/managed/metrics.rs
index b2400621..fc41fd6f 100644
--- a/src/managed/metrics.rs
+++ b/src/managed/metrics.rs
@@ -1,11 +1,14 @@
+#[cfg(not(target_arch = "wasm32"))]
 use std::time::{Duration, Instant};
 
 /// Statistics regarding an object returned by the pool
 #[derive(Clone, Copy, Debug)]
 #[must_use]
 pub struct Metrics {
+    #[cfg(not(target_arch = "wasm32"))]
     /// The instant when this object was created
     pub created: Instant,
+    #[cfg(not(target_arch = "wasm32"))]
     /// The instant when this object was last used
     pub recycled: Option<Instant>,
     /// The number of times the objects was recycled
@@ -13,10 +16,12 @@ pub struct Metrics {
 }
 
 impl Metrics {
+    #[cfg(not(target_arch = "wasm32"))]
     /// Access the age of this object
     pub fn age(&self) -> Duration {
         self.created.elapsed()
     }
+    #[cfg(not(target_arch = "wasm32"))]
     /// Get the time elapsed when this object was last used
     pub fn last_used(&self) -> Duration {
         self.recycled.unwrap_or(self.created).elapsed()
@@ -26,7 +31,9 @@ impl Metrics {
 impl Default for Metrics {
     fn default() -> Self {
         Self {
+            #[cfg(not(target_arch = "wasm32"))]
             created: Instant::now(),
+            #[cfg(not(target_arch = "wasm32"))]
             recycled: None,
             recycle_count: 0,
         }
diff --git a/src/managed/mod.rs b/src/managed/mod.rs
index 6fed8150..bee5dc2b 100644
--- a/src/managed/mod.rs
+++ b/src/managed/mod.rs
@@ -66,9 +66,12 @@ use std::{
         atomic::{AtomicUsize, Ordering},
         Arc, Mutex, Weak,
     },
-    time::{Duration, Instant},
+    time::Duration,
 };
 
+#[cfg(not(target_arch = "wasm32"))]
+use std::time::Instant;
+
 use deadpool_runtime::Runtime;
 use tokio::sync::{Semaphore, TryAcquireError};
 
@@ -409,7 +412,10 @@ impl<M: Manager, W: From<Object<M>>> Pool<M, W> {
         }
 
         inner.metrics.recycle_count += 1;
-        inner.metrics.recycled = Some(Instant::now());
+        #[cfg(not(target_arch = "wasm32"))]
+        {
+            inner.metrics.recycled = Some(Instant::now());
+        }
 
         Ok(Some(unready_obj.ready()))
     }