From a966d2fd2aaff7651d7928fb8381a17bf1f5f517 Mon Sep 17 00:00:00 2001
From: Mark Pulford <mark@kyne.com.au>
Date: Mon, 16 May 2011 19:21:06 +0930
Subject: Move all benchmark code into bench.lua

Move benchmark() into bench.lua since it not used elsewhere.
Replace posix.gettimeofday() with socket.gettime() to improve portability.
---
 tests/bench.lua  | 34 ++++++++++++++++++++++++++++++++++
 tests/common.lua | 39 ---------------------------------------
 2 files changed, 34 insertions(+), 39 deletions(-)

diff --git a/tests/bench.lua b/tests/bench.lua
index 847365b..c1808cf 100755
--- a/tests/bench.lua
+++ b/tests/bench.lua
@@ -7,8 +7,40 @@
 -- Mark Pulford <mark@kyne.com.au>
 
 require "common"
+require "socket"
 local json = require "cjson"
 
+function benchmark(tests, iter, rep)
+    local function bench(func, iter)
+        collectgarbage("collect")
+        local t = socket.gettime()
+        for i = 1, iter do
+            func(i)
+        end
+        t = socket.gettime() - t
+        return (iter / t)
+    end
+
+    local test_results = {}
+    for name, func in pairs(tests) do
+        -- k(number), v(string)
+        -- k(string), v(function)
+        -- k(number), v(function)
+        if type(func) == "string" then
+            name = func
+            func = _G[name]
+        end
+        local result = {}
+        for i = 1, rep do
+            result[i] = bench(func, iter)
+        end
+        table.sort(result)
+        test_results[name] = result[rep]
+    end
+
+    return test_results
+end
+
 function bench_file(filename)
     local data_json = file_load(filename)
     local data_obj = json.decode(data_json)
@@ -28,6 +60,8 @@ function bench_file(filename)
     return benchmark(tests, 5000, 5)
 end
 
+cjson.encode_keep_buffer(true)
+
 for i = 1, #arg do
     local results = bench_file(arg[i])
     for k, v in pairs(results) do
diff --git a/tests/common.lua b/tests/common.lua
index 47e3f56..e08b6c2 100644
--- a/tests/common.lua
+++ b/tests/common.lua
@@ -1,5 +1,4 @@
 require "cjson"
-require "posix"
 
 -- Misc routines to assist with CJSON testing
 --
@@ -120,44 +119,6 @@ function file_save(filename, data)
     file:close()
 end
 
-function gettimeofday()
-    local tv_sec, tv_usec = posix.gettimeofday()
-
-    return tv_sec + tv_usec / 1000000
-end
-
-function benchmark(tests, iter, rep)
-    local function bench(func, iter)
-        collectgarbage("stop")
-        local t = gettimeofday()
-        for i = 1, iter do
-            func(i)
-        end
-        t = gettimeofday() - t
-        collectgarbage("restart")
-        return (iter / t)
-    end
-
-    local test_results = {}
-    for name, func in pairs(tests) do
-        -- k(number), v(string)
-        -- k(string), v(function)
-        -- k(number), v(function)
-        if type(func) == "string" then
-            name = func
-            func = _G[name]
-        end
-        local result = {}
-        for i = 1, rep do
-            result[i] = bench(func, iter)
-        end
-        table.sort(result)
-        test_results[name] = result[rep]
-    end
-
-    return test_results
-end
-
 function compare_values(val1, val2)
     local type1 = type(val1)
     local type2 = type(val2)
-- 
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