tail: improve performance of piped stdin

Rewrite handling of stdin when it is piped and read input in chunks. Fixes uutils#3842
Joining7943 · Aug 24, 2022 · fa51fe8 · fa51fe8
1 parent bbd0ef9
commit fa51fe8
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Showing 28 changed files with 3,512 additions and 71 deletions.
diff --git a/Cargo.lock b/Cargo.lock
diff --git a/src/uu/tail/Cargo.toml b/src/uu/tail/Cargo.toml
@@ -18,12 +18,13 @@ path = "src/tail.rs"
 [dependencies]
 clap = { version = "3.2", features = ["wrap_help", "cargo"] }
 libc = "0.2.132"
-notify = { version = "=5.0.0-pre.16", features=["macos_kqueue"]}
-uucore = { version=">=0.0.15", package="uucore", path="../../uucore", features=["ringbuffer", "lines"] }
+memchr = "2.5.0"
+notify = { version = "=5.0.0-pre.16", features = ["macos_kqueue"] }
+uucore = { version = ">=0.0.15", package = "uucore", path = "../../uucore", features = ["ringbuffer", "lines"] }
 
 [target.'cfg(windows)'.dependencies]
-winapi = { version="0.3", features=["fileapi", "handleapi", "processthreadsapi", "synchapi", "winbase"] }
-winapi-util = { version="0.1.5" }
+winapi = { version = "0.3", features = ["fileapi", "handleapi", "processthreadsapi", "synchapi", "winbase"] }
+winapi-util = { version = "0.1.5" }
 
 [target.'cfg(unix)'.dependencies]
 nix = { version = "0.25", features = ["fs"] }