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Merge pull request #1907 from selavy/check-fread-r1895

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Check for fread failure
This commit is contained in:
Yann Collet
2019-12-03 15:31:11 -08:00
committed by GitHub
parent e8faa09bdc 8eb499d354
commit 901e545173
1 changed files with 7 additions and 2 deletions
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9
programs/fileio.c
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@@ -1769,7 +1769,7 @@ static int FIO_passThrough(const FIO_prefs_t* const prefs,
size_t alreadyLoaded)
{
size_t const blockSize = MIN(64 KB, bufferSize);
size_t readFromInput = 1;
size_t readFromInput;
unsigned storedSkips = 0;
/* assumption : ress->srcBufferLoaded bytes already loaded and stored within buffer */
@@ -1779,10 +1779,15 @@ static int FIO_passThrough(const FIO_prefs_t* const prefs,
return 1;
} }
while (readFromInput) {
do {
readFromInput = fread(buffer, 1, blockSize, finput);
storedSkips = FIO_fwriteSparse(prefs, foutput, buffer, readFromInput, storedSkips);
} while (readFromInput == blockSize);
if (ferror(finput)) {
DISPLAYLEVEL(1, "Pass-through read error : %s\n", strerror(errno));
return 1;
}
assert(feof(finput));
FIO_fwriteSparseEnd(prefs, foutput, storedSkips);
return 0;