From c0ea15226d5de8cd5025cc3db60e226da1251218 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Skytt=C3=A4?= <ville.skytta@iki.fi>
Date: Sat, 5 Dec 2020 18:08:16 +0200
Subject: [PATCH 1/2] rehash: try to sleep in 0.1 sec steps when acquiring lock

---
 libexec/pyenv-rehash | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libexec/pyenv-rehash b/libexec/pyenv-rehash
index 5c421c41..33b7e233 100755
--- a/libexec/pyenv-rehash
+++ b/libexec/pyenv-rehash
@@ -45,8 +45,8 @@ for (( i=1; i<="${PYENV_REHASH_TIMEOUT:-60}"; i++ )); do
     acquired=1
     break
   else
-    # POSIX sleep(1) doesn't provides time precision of subsecond
-    sleep 1
+    # POSIX sleep(1) doesn't provide subsecond precision, but many others do
+    sleep 0.1 2>/dev/null || sleep 1
   fi
 done
 

From b938abdea1480496fa5b402783539b16bbfb86d4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Skytt=C3=A4?= <ville.skytta@iki.fi>
Date: Sat, 9 Jan 2021 10:21:11 +0200
Subject: [PATCH 2/2] rehash: preserve existing $PYENV_REHASH_TIMEOUT semantics

Try for that long no matter what the sleep step available is.
---
 libexec/pyenv-rehash | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libexec/pyenv-rehash b/libexec/pyenv-rehash
index 33b7e233..4e31994e 100755
--- a/libexec/pyenv-rehash
+++ b/libexec/pyenv-rehash
@@ -40,7 +40,8 @@ if [ ! -w "$SHIM_PATH" ]; then
 fi
 
 unset acquired
-for (( i=1; i<="${PYENV_REHASH_TIMEOUT:-60}"; i++ )); do
+start=$SECONDS
+while (( SECONDS <= start + ${PYENV_REHASH_TIMEOUT:-60} )); do
   if acquire_lock 2>/dev/null; then
     acquired=1
     break