Add graceful shutdown and memory tracing

1 files changed, 91 insertions, 5 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 9d35b3f..a69f72a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -371,6 +371,21 @@ dependencies = [
 ]
 
 [[package]]
+name = "dhat"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "47003dc9f6368a88e85956c3b2573a7e6872746a3e5d762a8885da3a136a0381"
+dependencies = [
+ "backtrace",
+ "lazy_static",
+ "parking_lot 0.11.2",
+ "rustc-hash",
+ "serde",
+ "serde_json",
+ "thousands",
+]
+
+[[package]]
 name = "discard"
 version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -852,6 +867,15 @@ dependencies = [
 ]
 
 [[package]]
+name = "instant"
+version = "0.1.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a5bbe824c507c5da5956355e86a746d82e0e1464f65d862cc5e71da70e94b2c"
+dependencies = [
+ "cfg-if 1.0.0",
+]
+
+[[package]]
 name = "iovec"
 version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -922,6 +946,15 @@ dependencies = [
 ]
 
 [[package]]
+name = "lock_api"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712a4d093c9976e24e7dbca41db895dabcbac38eb5f4045393d17a95bdfb1109"
+dependencies = [
+ "scopeguard",
+]
+
+[[package]]
 name = "log"
 version = "0.4.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1129,12 +1162,23 @@ version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f842b1982eb6c2fe34036a4fbfb06dd185a3f5c8edfaacdf7d1ea10b07de6252"
 dependencies = [
- "lock_api",
- "parking_lot_core",
+ "lock_api 0.3.4",
+ "parking_lot_core 0.6.2",
  "rustc_version",
 ]
 
 [[package]]
+name = "parking_lot"
+version = "0.11.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d17b78036a60663b797adeaee46f5c9dfebb86948d1255007a1d6be0271ff99"
+dependencies = [
+ "instant",
+ "lock_api 0.4.5",
+ "parking_lot_core 0.8.5",
+]
+
+[[package]]
 name = "parking_lot_core"
 version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1143,9 +1187,23 @@ dependencies = [
  "cfg-if 0.1.10",
  "cloudabi",
  "libc",
- "redox_syscall",
+ "redox_syscall 0.1.57",
  "rustc_version",
- "smallvec",
+ "smallvec 0.6.14",
+ "winapi 0.3.9",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d76e8e1493bcac0d2766c42737f34458f1c8c50c0d23bcb24ea953affb273216"
+dependencies = [
+ "cfg-if 1.0.0",
+ "instant",
+ "libc",
+ "redox_syscall 0.2.10",
+ "smallvec 1.8.0",
  "winapi 0.3.9",
 ]
 
@@ -1286,6 +1344,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "41cc0f7e4d5d4544e8861606a285bb08d3e70712ccc7d2b84d7c0ccfaf4b05ce"
 
 [[package]]
+name = "redox_syscall"
+version = "0.2.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8383f39639269cde97d255a32bdb68c047337295414940c68bdd30c2e13203ff"
+dependencies = [
+ "bitflags",
+]
+
+[[package]]
 name = "regex"
 version = "1.5.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1360,6 +1427,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7ef03e0a2b150c7a90d01faf6254c9c48a41e95fb2a8c2ac1c6f0d2b9aefc342"
 
 [[package]]
+name = "rustc-hash"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
+
+[[package]]
 name = "rustc_version"
 version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1568,6 +1641,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "smallvec"
+version = "1.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f2dd574626839106c320a323308629dcb1acfc96e32a8cba364ddc61ac23ee83"
+
+[[package]]
 name = "socket2"
 version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1722,6 +1801,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "thousands"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3bf63baf9f5039dadc247375c29eb13706706cfde997d0330d05aa63a77d8820"
+
+[[package]]
 name = "time"
 version = "0.1.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1886,7 +1971,7 @@ dependencies = [
  "log",
  "mio 0.6.23",
  "num_cpus",
- "parking_lot",
+ "parking_lot 0.9.0",
  "slab",
  "tokio-executor",
  "tokio-io",
@@ -2007,6 +2092,7 @@ dependencies = [
  "async-compression",
  "bytes 1.1.0",
  "chrono",
+ "dhat",
  "envy",
  "futures 0.3.18",
  "futures-util",