From 1e3637af595b88954efe37b2d294fb24b3043854 Mon Sep 17 00:00:00 2001
From: Leonid Yuriev <leo@yuriev.ru>
Date: Sat, 10 Aug 2019 23:04:00 +0300
Subject: [PATCH] mdbx-test: refine long_stochastic-script for FreeBSD
 compatibility.

Change-Id: I411b628d9381a54bebbea33a2bfde3145bdba74b
---
 test/long_stochastic.sh | 71 ++++++++++++++++++++++++++++-------------
 1 file changed, 48 insertions(+), 23 deletions(-)

diff --git a/test/long_stochastic.sh b/test/long_stochastic.sh
index 026c9a41..954d1826 100755
--- a/test/long_stochastic.sh
+++ b/test/long_stochastic.sh
@@ -1,24 +1,49 @@
 #!/bin/bash
 if ! which make cc c++ tee lz4 >/dev/null; then
 	echo "Please install the following prerequisites: make cc c++ tee lz4" >&2
-	exit -1
+	exit 1
 fi
 
 set -euo pipefail
-TESTDB_PREFIX=${1:-/dev/shm/mdbx-gc-test}.
 
-rm -f $(dirname ${TESTDB_PREFIX})/*
+UNAME="$(uname -s 2>/dev/null || echo Unknown)"
+case ${UNAME} in
+	Linux)
+		MAKE=make
+		if [[ ! -v TESTDB_DIR || -z "$TESTDB_DIR" ]]; then
+			TESTDB_DIR="/dev/shm/mdbx-test.$$"
+		fi
+		mkdir -p $TESTDB_DIR && rm -f $TESTDB_DIR/*
+		if LC_ALL=C free | grep -q -i available; then
+			ram_avail_mb=$(($(LC_ALL=C free | grep -i Mem: | tr -s [:blank:] ' ' | cut -d ' ' -f 7) / 1024))
+		else
+			ram_avail_mb=$(($(LC_ALL=C free | grep -i Mem: | tr -s [:blank:] ' ' | cut -d ' ' -f 4) / 1024))
+		fi
+	;;
+	FreeBSD)
+		MAKE=gmake
+		if [[ ! -v TESTDB_DIR || -z "$TESTDB_DIR" ]]; then
+			for old_test_dir in $(ls -d /tmp/mdbx-test.[0-9]*); do
+				umount $old_test_dir && rm -r $old_test_dir
+			done
+			TESTDB_DIR="/tmp/mdbx-test.$$"
+			rm -rf $TESTDB_DIR && mkdir -p $TESTDB_DIR && mount -t tmpfs tmpfs $TESTDB_DIR
+		else
+			mkdir -p $TESTDB_DIR && rm -f $TESTDB_DIR/*
+		fi
+		ram_avail_mb=$(($(LC_ALL=C vmstat -s | grep -ie '[0-9] pages free$' | cut -d p -f 1) * ($(LC_ALL=C vmstat -s | grep -ie '[0-9] bytes per page$' | cut -d b -f 1) / 1024) / 1024))
+	;;
+	*)
+		echo "FIXME: ${UNAME} not supported by this script"
+		exit 2
+	;;
+esac
 
-if LC_ALL=C free | grep -q -i available; then
-	ram_avail_mb=$(($(LC_ALL=C free | grep -i Mem: | tr -s [:blank:] ' ' | cut -d ' ' -f 7) / 1024))
-else
-	ram_avail_mb=$(($(LC_ALL=C free | grep -i Mem: | tr -s [:blank:] ' ' | cut -d ' ' -f 4) / 1024))
-fi
-
-ram_reserve4logs_mb=3333
-if [ ${ram_avail_mb} -lt ${ram_reserve4logs_mb} ]; then
+echo "=== ${ram_avail_mb}M RAM available"
+ram_reserve4logs_mb=1234
+if [ $ram_avail_mb -lt $ram_reserve4logs_mb ]; then
 	echo "=== At least ${ram_reserve4logs_mb}Mb RAM required"
-	exit -2
+	exit 3
 fi
 
 #
@@ -39,14 +64,14 @@ fi
 # that malloc() will not return the allocated memory to the
 # system immediately, as well some space is required for logs.
 #
-db_size_mb=$(expr '(' ${ram_avail_mb} - ${ram_reserve4logs_mb} ')' / 4)
-if [ ${db_size_mb} -gt 3072 ]; then
-db_size_mb=3072
+db_size_mb=$(((ram_avail_mb - ram_reserve4logs_mb) / 4))
+if [ $db_size_mb -gt 3072 ]; then
+	db_size_mb=3072
 fi
-echo "=== ${ram_avail_mb}M RAM available, use ${db_size_mb}M for DB"
+echo "=== use ${db_size_mb}M for DB"
 
-make check
-rm -f $(dirname ${TESTDB_PREFIX})/*
+${MAKE} TESTDB=${TESTDB_DIR}/smoke.db TESTLOG=${TESTDB_DIR}/smoke.log check
+rm -f ${TESTDB_DIR}/*
 
 ###############################################################################
 
@@ -69,10 +94,10 @@ function bits2list {
 function probe {
 	echo "=============================================== $(date)"
 	echo "${caption}: $*"
-	rm -f ${TESTDB_PREFIX}* \
-		&& ./mdbx_test --ignore-dbfull --repeat=42 --pathname=${TESTDB_PREFIX}db "$@" | lz4 > ${TESTDB_PREFIX}log.lz4 \
-		&& ./mdbx_chk -nvvv ${TESTDB_PREFIX}db | tee ${TESTDB_PREFIX}chk \
-		&& ([ ! -e ${TESTDB_PREFIX}db-copy ] || ./mdbx_chk -nvvv ${TESTDB_PREFIX}db-copy | tee ${TESTDB_PREFIX}chk-copy) \
+	rm -f ${TESTDB_DIR}/* \
+		&& ./mdbx_test --ignore-dbfull --repeat=42 --pathname=${TESTDB_DIR}/long.db "$@" | lz4 > ${TESTDB_DIR}/long.log.lz4 \
+		&& ./mdbx_chk -nvvv ${TESTDB_DIR}/long.db | tee ${TESTDB_DIR}/long-chk.log \
+		&& ([ ! -e ${TESTDB_DIR}/long.db-copy ] || ./mdbx_chk -nvvv ${TESTDB_DIR}/long.db-copy | tee ${TESTDB_DIR}/long-chk-copy.log) \
 		|| (echo "FAILED"; exit 1)
 }
 
@@ -84,7 +109,7 @@ for nops in $(seq 2 6); do
 		loops=$(((111 >> nops) / nops + 3))
 		for ((rep=0; rep++ < loops; )); do
 			for ((bits=2**${#options[@]}; --bits >= 0; )); do
-				seed=$(date +%N)
+				seed=$(($(date +%s) + RANDOM))
 				caption="Probe #$((++count)) int-key,w/o-dups, repeat ${rep} of ${loops}" probe \
 					--pagesize=min --size-upper=${db_size_mb}M --table=+key.integer,-data.dups --keylen.min=min --keylen.max=max --datalen.min=min --datalen.max=1111 \
 					--nops=$( rep9 $nops ) --batch.write=$( rep9 $wbatch ) --mode=$(bits2list options $bits) \