From 7238cca1a1f00b27570b721b852317dfcfbffa72 Mon Sep 17 00:00:00 2001
From: "W. Felix Handte" <w@felixhandte.com>
Date: Wed, 5 Aug 2020 01:08:34 -0400
Subject: [PATCH] Deduplicate Some Low-Hanging Fruit of Redundant Stat Calls

---
 programs/fileio.c | 7 ++++---
 programs/util.c   | 5 +++--
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/programs/fileio.c b/programs/fileio.c
index e818614b..0633d39d 100644
--- a/programs/fileio.c
+++ b/programs/fileio.c
@@ -519,6 +519,7 @@ static int FIO_remove(const char* path)
  * @result : FILE* to `srcFileName`, or NULL if it fails */
 static FILE* FIO_openSrcFile(const char* srcFileName)
 {
+    stat_t statbuf;
     assert(srcFileName != NULL);
     if (!strcmp (srcFileName, stdinmark)) {
         DISPLAYLEVEL(4,"Using stdin for input \n");
@@ -526,14 +527,14 @@ static FILE* FIO_openSrcFile(const char* srcFileName)
         return stdin;
     }
 
-    if (!UTIL_fileExist(srcFileName)) {
+    if (!UTIL_stat(srcFileName, &statbuf)) {
         DISPLAYLEVEL(1, "zstd: can't stat %s : %s -- ignored \n",
                         srcFileName, strerror(errno));
         return NULL;
     }
 
-    if (!UTIL_isRegularFile(srcFileName)
-     && !UTIL_isFIFO(srcFileName)
+    if (!UTIL_isRegularFileStat(&statbuf)
+     && !UTIL_isFIFOStat(&statbuf)
     ) {
         DISPLAYLEVEL(1, "zstd: %s is not a regular file -- ignored \n",
                         srcFileName);
diff --git a/programs/util.c b/programs/util.c
index c81587b4..69b93b8d 100644
--- a/programs/util.c
+++ b/programs/util.c
@@ -354,11 +354,12 @@ UTIL_createFileNamesTable_fromFileName(const char* inputFileName)
     char* buf;
     size_t bufSize;
     size_t pos = 0;
+    stat_t statbuf;
 
-    if (!UTIL_fileExist(inputFileName) || !UTIL_isRegularFile(inputFileName))
+    if (!UTIL_stat(inputFileName, &statbuf) || !UTIL_isRegularFileStat(&statbuf))
         return NULL;
 
-    {   U64 const inputFileSize = UTIL_getFileSize(inputFileName);
+    {   U64 const inputFileSize = UTIL_getFileSizeStat(&statbuf);
         if(inputFileSize > MAX_FILE_OF_FILE_NAMES_SIZE)
             return NULL;
         bufSize = (size_t)(inputFileSize + 1); /* (+1) to add '\0' at the end of last filename */