From bc361fa876b277280eee648c7f631d3345495971 Mon Sep 17 00:00:00 2001
From: _ <>
Date: Sun, 20 Dec 2020 18:52:53 +0000
Subject: [PATCH] :heavy_plus_sign: update: add heim for measuring process RSS

---
 Cargo.lock                                    | 490 +++++++++++++++++-
 crates/ptth_server/Cargo.toml                 |   2 +
 crates/ptth_server/src/file_server/errors.rs  |   9 +
 crates/ptth_server/src/file_server/metrics.rs |  15 +
 4 files changed, 515 insertions(+), 1 deletion(-)

diff --git a/Cargo.lock b/Cargo.lock
index 3bb3d07..659cf6f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -58,6 +58,122 @@ version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "23b62fc65de8e4e7f52534fb52b0f3ed04746ae267519eef2a83941e8085068b"
 
+[[package]]
+name = "async-channel"
+version = "1.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "59740d83946db6a5af71ae25ddf9562c2b176b2ca42cf99a455f09f4a220d6b9"
+dependencies = [
+ "concurrent-queue",
+ "event-listener",
+ "futures-core",
+]
+
+[[package]]
+name = "async-executor"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eb877970c7b440ead138f6321a3b5395d6061183af779340b65e20c0fede9146"
+dependencies = [
+ "async-task",
+ "concurrent-queue",
+ "fastrand",
+ "futures-lite",
+ "once_cell",
+ "vec-arena",
+]
+
+[[package]]
+name = "async-fs"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b3ca4f8ff117c37c278a2f7415ce9be55560b846b5bc4412aaa5d29c1c3dae2"
+dependencies = [
+ "async-lock",
+ "blocking",
+ "futures-lite",
+]
+
+[[package]]
+name = "async-io"
+version = "1.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9315f8f07556761c3e48fec2e6b276004acf426e6dc068b2c2251854d65ee0fd"
+dependencies = [
+ "concurrent-queue",
+ "fastrand",
+ "futures-lite",
+ "libc",
+ "log",
+ "nb-connect",
+ "once_cell",
+ "parking",
+ "polling",
+ "vec-arena",
+ "waker-fn",
+ "winapi 0.3.9",
+]
+
+[[package]]
+name = "async-lock"
+version = "2.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1996609732bde4a9988bc42125f55f2af5f3c36370e27c778d5191a4a1b63bfb"
+dependencies = [
+ "event-listener",
+]
+
+[[package]]
+name = "async-net"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06de475c85affe184648202401d7622afb32f0f74e02192857d0201a16defbe5"
+dependencies = [
+ "async-io",
+ "blocking",
+ "fastrand",
+ "futures-lite",
+]
+
+[[package]]
+name = "async-process"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4c8cea09c1fb10a317d1b5af8024eeba256d6554763e85ecd90ff8df31c7bbda"
+dependencies = [
+ "async-io",
+ "blocking",
+ "cfg-if 0.1.10",
+ "event-listener",
+ "futures-lite",
+ "once_cell",
+ "signal-hook",
+ "winapi 0.3.9",
+]
+
+[[package]]
+name = "async-task"
+version = "4.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e91831deabf0d6d7ec49552e489aed63b7456a7a3c46cff62adad428110b0af0"
+
+[[package]]
+name = "async-trait"
+version = "0.1.42"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8d3a45e77e34375a7923b1e8febb049bb011f064714a8e17a1a616fef01da13d"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "atomic-waker"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "065374052e7df7ee4047b1160cca5e1467a12351a40b3da123c870ba0b8eda2a"
+
 [[package]]
 name = "atty"
 version = "0.2.14"
@@ -135,6 +251,20 @@ dependencies = [
  "byte-tools",
 ]
 
+[[package]]
+name = "blocking"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c5e170dbede1f740736619b776d7251cb1b9095c435c34d8ca9f57fcd2f335e9"
+dependencies = [
+ "async-channel",
+ "async-task",
+ "atomic-waker",
+ "fastrand",
+ "futures-lite",
+ "once_cell",
+]
+
 [[package]]
 name = "bumpalo"
 version = "3.4.0"
@@ -159,6 +289,12 @@ version = "0.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0e4cec68f03f32e44924783795810fa50a7035d8c8ebe78580ad7e6c703fba38"
 
+[[package]]
+name = "cache-padded"
+version = "1.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "631ae5198c9be5e753e5cc215e1bd73c2b466a3565173db433f52bb9d3e66dba"
+
 [[package]]
 name = "cc"
 version = "1.0.66"
@@ -217,6 +353,15 @@ dependencies = [
  "bitflags",
 ]
 
+[[package]]
+name = "concurrent-queue"
+version = "1.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "30ed07550be01594c6026cff2a1d7fe9c8f683caa798e12b68694ac9e88286a3"
+dependencies = [
+ "cache-padded",
+]
+
 [[package]]
 name = "console_error_panic_hook"
 version = "0.1.6"
@@ -293,10 +438,30 @@ version = "3.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b57a92e9749e10f25a171adcebfafe72991d45e7ec2dcb853e8f83d9dafaeb08"
 dependencies = [
- "nix",
+ "nix 0.18.0",
  "winapi 0.3.9",
 ]
 
+[[package]]
+name = "darwin-libproc"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cc629b7cf42586fee31dae31f9ab73fa5ff5f0170016aa61be5fcbc12a90c516"
+dependencies = [
+ "darwin-libproc-sys",
+ "libc",
+ "memchr",
+]
+
+[[package]]
+name = "darwin-libproc-sys"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ef0aa083b94c54aa4cfd9bbfd37856714c139d1dc511af80270558c7ba3b4816"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "dashmap"
 version = "3.11.10"
@@ -341,12 +506,27 @@ dependencies = [
  "cfg-if 1.0.0",
 ]
 
+[[package]]
+name = "event-listener"
+version = "2.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7531096570974c3a9dcf9e4b8e1cede1ec26cf5046219fb3b9d897503b9be59"
+
 [[package]]
 name = "fake-simd"
 version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e88a8acf291dafb59c2d96e8f59828f3838bb1a70398823ade51a84de6a6deed"
 
+[[package]]
+name = "fastrand"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca5faf057445ce5c9d4329e382b2ce7ca38550ef3b73a5348362d5f24e0c7fe3"
+dependencies = [
+ "instant",
+]
+
 [[package]]
 name = "fnv"
 version = "1.0.7"
@@ -448,6 +628,21 @@ version = "0.3.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "611834ce18aaa1bd13c4b374f5d653e1027cf99b6b502584ff8c9a64413b30bb"
 
+[[package]]
+name = "futures-lite"
+version = "1.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b4481d0cd0de1d204a4fa55e7d45f07b1d958abcb06714b3446438e2eff695fb"
+dependencies = [
+ "fastrand",
+ "futures-core",
+ "futures-io",
+ "memchr",
+ "parking",
+ "pin-project-lite 0.2.0",
+ "waker-fn",
+]
+
 [[package]]
 name = "futures-macro"
 version = "0.3.8"
@@ -475,6 +670,12 @@ dependencies = [
  "once_cell",
 ]
 
+[[package]]
+name = "futures-timer"
+version = "3.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e64b03909df88034c26dc1547e8970b91f98bdb65165d6a4e9110d94263dbb2c"
+
 [[package]]
 name = "futures-util"
 version = "0.3.8"
@@ -558,6 +759,12 @@ dependencies = [
  "wasi 0.9.0+wasi-snapshot-preview1",
 ]
 
+[[package]]
+name = "glob"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
+
 [[package]]
 name = "h2"
 version = "0.2.7"
@@ -607,6 +814,125 @@ dependencies = [
  "unicode-segmentation",
 ]
 
+[[package]]
+name = "heim"
+version = "0.1.0-rc.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8a653442b9bdd11a77d3753a60443c60c4437d3acac8e6c3d4a6a9acd7cceed"
+dependencies = [
+ "heim-common",
+ "heim-process",
+ "heim-runtime",
+]
+
+[[package]]
+name = "heim-common"
+version = "0.1.0-rc.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d767e6e47cf88abe7c9a5ebb4df82f180d30d9c0ba0269b6d166482461765834"
+dependencies = [
+ "cfg-if 1.0.0",
+ "core-foundation",
+ "futures-core",
+ "futures-util",
+ "lazy_static",
+ "libc",
+ "mach",
+ "nix 0.19.1",
+ "pin-utils",
+ "uom",
+ "winapi 0.3.9",
+]
+
+[[package]]
+name = "heim-cpu"
+version = "0.1.0-rc.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ba5fb13a3b90581d22b4edf99e87c54316444622ae123d36816a227a7caa6df"
+dependencies = [
+ "cfg-if 1.0.0",
+ "futures",
+ "glob",
+ "heim-common",
+ "heim-runtime",
+ "lazy_static",
+ "libc",
+ "mach",
+ "ntapi",
+ "smol",
+ "winapi 0.3.9",
+]
+
+[[package]]
+name = "heim-host"
+version = "0.1.0-rc.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9abf6cd02bc4f6e6aa31a7f80702a2d0e574f4f2c6156a93c3550eb036304722"
+dependencies = [
+ "cfg-if 1.0.0",
+ "heim-common",
+ "heim-runtime",
+ "lazy_static",
+ "libc",
+ "log",
+ "mach",
+ "ntapi",
+ "platforms",
+ "winapi 0.3.9",
+]
+
+[[package]]
+name = "heim-net"
+version = "0.1.0-rc.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d13afa5e9b71c813c1e087bb27f51ae87d3a6d68a2bdd045bae4322dfae4948b"
+dependencies = [
+ "bitflags",
+ "cfg-if 1.0.0",
+ "heim-common",
+ "heim-runtime",
+ "libc",
+ "macaddr",
+ "nix 0.19.1",
+]
+
+[[package]]
+name = "heim-process"
+version = "0.1.1-rc.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "386870aac75d29b817fe709f1ef4303553e0af369e3c71d04beceeb50ae2cf39"
+dependencies = [
+ "async-trait",
+ "cfg-if 1.0.0",
+ "darwin-libproc",
+ "futures",
+ "heim-common",
+ "heim-cpu",
+ "heim-host",
+ "heim-net",
+ "heim-runtime",
+ "lazy_static",
+ "libc",
+ "mach",
+ "memchr",
+ "ntapi",
+ "ordered-float",
+ "smol",
+ "winapi 0.3.9",
+]
+
+[[package]]
+name = "heim-runtime"
+version = "0.1.0-rc.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "54ec7e5238c8f0dd0cc60914d31a5a7aadd4cde74c966a76c1caed1f5224e9b8"
+dependencies = [
+ "futures",
+ "futures-timer",
+ "once_cell",
+ "smol",
+]
+
 [[package]]
 name = "hermit-abi"
 version = "0.1.17"
@@ -707,6 +1033,15 @@ dependencies = [
  "hashbrown",
 ]
 
+[[package]]
+name = "instant"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "61124eeebbd69b8190558df225adf7e4caafce0d743919e5d6b19652314ec5ec"
+dependencies = [
+ "cfg-if 1.0.0",
+]
+
 [[package]]
 name = "iovec"
 version = "0.1.4"
@@ -790,6 +1125,21 @@ dependencies = [
  "serde_json",
 ]
 
+[[package]]
+name = "macaddr"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baee0bbc17ce759db233beb01648088061bf678383130602a298e6998eedb2d8"
+
+[[package]]
+name = "mach"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b823e83b2affd8f40a9ee8c29dbc56404c1e34cd2710921f2801e2cf29527afa"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "maplit"
 version = "1.0.2"
@@ -915,6 +1265,16 @@ dependencies = [
  "tempfile",
 ]
 
+[[package]]
+name = "nb-connect"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8123a81538e457d44b933a02faf885d3fe8408806b23fa700e8f01c6c3a98998"
+dependencies = [
+ "libc",
+ "winapi 0.3.9",
+]
+
 [[package]]
 name = "net2"
 version = "0.2.37"
@@ -938,6 +1298,27 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "nix"
+version = "0.19.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b2ccba0cfe4fdf15982d1674c69b1fd80bad427d293849982668dfe454bd61f2"
+dependencies = [
+ "bitflags",
+ "cc",
+ "cfg-if 1.0.0",
+ "libc",
+]
+
+[[package]]
+name = "ntapi"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f6bb902e437b6d86e03cce10a7e2af662292c5dfef23b65899ea3ac9354ad44"
+dependencies = [
+ "winapi 0.3.9",
+]
+
 [[package]]
 name = "num-integer"
 version = "0.1.44"
@@ -948,6 +1329,17 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "num-rational"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "12ac428b1cb17fce6f731001d307d351ec70a6d202fc2e60f7d4c5e42d8f4f07"
+dependencies = [
+ "autocfg 1.0.1",
+ "num-integer",
+ "num-traits",
+]
+
 [[package]]
 name = "num-traits"
 version = "0.2.14"
@@ -1012,6 +1404,21 @@ dependencies = [
  "vcpkg",
 ]
 
+[[package]]
+name = "ordered-float"
+version = "2.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dacdec97876ef3ede8c50efc429220641a0b11ba0048b4b0c357bccbc47c5204"
+dependencies = [
+ "num-traits",
+]
+
+[[package]]
+name = "parking"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "427c3892f9e783d91cc128285287e70a59e206ca452770ece88a76f7a3eddd72"
+
 [[package]]
 name = "percent-encoding"
 version = "2.1.0"
@@ -1125,6 +1532,25 @@ version = "0.3.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3831453b3449ceb48b6d9c7ad7c96d5ea673e9b470a1dc578c2ce6521230884c"
 
+[[package]]
+name = "platforms"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cc77a3fc329982cbf3ea772aa265b742a550998bad65747c630406ee52dac425"
+
+[[package]]
+name = "polling"
+version = "2.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a2a7bc6b2a29e632e45451c941832803a18cce6781db04de8a04696cdca8bde4"
+dependencies = [
+ "cfg-if 0.1.10",
+ "libc",
+ "log",
+ "wepoll-sys",
+ "winapi 0.3.9",
+]
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.10"
@@ -1261,6 +1687,7 @@ dependencies = [
  "chrono",
  "futures",
  "handlebars",
+ "heim",
  "http",
  "lazy_static",
  "maplit",
@@ -1281,6 +1708,7 @@ dependencies = [
  "tracing-futures",
  "tracing-subscriber",
  "ulid",
+ "uom",
 ]
 
 [[package]]
@@ -1701,6 +2129,16 @@ dependencies = [
  "loom",
 ]
 
+[[package]]
+name = "signal-hook"
+version = "0.1.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "604508c1418b99dfe1925ca9224829bb2a8a9a04dda655cc01fcad46f4ab05ed"
+dependencies = [
+ "libc",
+ "signal-hook-registry",
+]
+
 [[package]]
 name = "signal-hook-registry"
 version = "1.2.2"
@@ -1722,6 +2160,24 @@ version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ae524f056d7d770e174287294f562e95044c68e88dec909a00d2094805db9d75"
 
+[[package]]
+name = "smol"
+version = "1.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85cf3b5351f3e783c1d79ab5fc604eeed8b8ae9abd36b166e8b87a089efd85e4"
+dependencies = [
+ "async-channel",
+ "async-executor",
+ "async-fs",
+ "async-io",
+ "async-lock",
+ "async-net",
+ "async-process",
+ "blocking",
+ "futures-lite",
+ "once_cell",
+]
+
 [[package]]
 name = "socket2"
 version = "0.3.17"
@@ -2102,6 +2558,17 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
 
+[[package]]
+name = "uom"
+version = "0.30.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e76503e636584f1e10b9b3b9498538279561adcef5412927ba00c2b32c4ce5ed"
+dependencies = [
+ "num-rational",
+ "num-traits",
+ "typenum",
+]
+
 [[package]]
 name = "url"
 version = "2.2.0"
@@ -2120,6 +2587,12 @@ version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b00bca6106a5e23f3eee943593759b7fcddb00554332e856d990c893966879fb"
 
+[[package]]
+name = "vec-arena"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eafc1b9b2dfc6f5529177b62cf806484db55b32dc7c9658a118e11bbeb33061d"
+
 [[package]]
 name = "vec_map"
 version = "0.8.2"
@@ -2132,6 +2605,12 @@ version = "0.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
 
+[[package]]
+name = "waker-fn"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9d5b2c62b4012a3e1eca5a7e077d13b3bf498c4073e33ccd58626607748ceeca"
+
 [[package]]
 name = "want"
 version = "0.3.0"
@@ -2256,6 +2735,15 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "wepoll-sys"
+version = "3.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fcb14dea929042224824779fbc82d9fab8d2e6d3cbc0ac404de8edf489e77ff"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "winapi"
 version = "0.2.8"
diff --git a/crates/ptth_server/Cargo.toml b/crates/ptth_server/Cargo.toml
index 4f5b160..967bb15 100644
--- a/crates/ptth_server/Cargo.toml
+++ b/crates/ptth_server/Cargo.toml
@@ -15,6 +15,7 @@ blake3 = "0.3.7"
 chrono = {version = "0.4.19", features = ["serde"]}
 futures = "0.3.7"
 handlebars = "3.5.1"
+heim = { version = "0.1.0-rc.1", features = ["process"] }
 http = "0.2.1"
 lazy_static = "1.4.0"
 percent-encoding = "2.1.0"
@@ -32,6 +33,7 @@ tracing-futures = "0.2.4"
 tracing-subscriber = "0.2.15"
 toml = "0.5.7"
 ulid = "0.4.1"
+uom = "0.30.0"
 
 always_equal = { path = "../always_equal" }
 ptth_core = { path = "../ptth_core" }
diff --git a/crates/ptth_server/src/file_server/errors.rs b/crates/ptth_server/src/file_server/errors.rs
index dbb9127..7be513c 100644
--- a/crates/ptth_server/src/file_server/errors.rs
+++ b/crates/ptth_server/src/file_server/errors.rs
@@ -25,4 +25,13 @@ pub enum FileServerError {
 	
 	#[error ("Invalid URI")]
 	InvalidUri (#[from] http::uri::InvalidUri),
+	
+	#[error ("Heim process error")]
+	HeimProcess,
+}
+
+impl From <heim::process::ProcessError> for FileServerError {
+	fn from (_: heim::process::ProcessError) -> Self {
+		FileServerError::HeimProcess
+	}
 }
diff --git a/crates/ptth_server/src/file_server/metrics.rs b/crates/ptth_server/src/file_server/metrics.rs
index eb6ae0c..5165022 100644
--- a/crates/ptth_server/src/file_server/metrics.rs
+++ b/crates/ptth_server/src/file_server/metrics.rs
@@ -37,6 +37,21 @@ pub struct Gauges {
 	pub rss_mib: u64,
 }
 
+impl Gauges {
+	pub async fn new () -> Result <Self, super::FileServerError> {
+		use heim::process;
+		use uom::si::information::mebibyte;
+		
+		let our_process = process::current ().await?;
+		let mem = our_process.memory ().await?;
+		let rss_mib = mem.rss ().get::<mebibyte> ();
+		
+		Ok (Gauges {
+			rss_mib,
+		})
+	}
+}
+
 fn get_machine_id () -> Option <String> {
 	use std::{
 		fs::File,