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added QSE_FIO_NOCACHE.

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map QSE_FIO_SEQUENTIAL and QSE_FIO_RANDOM to some posix_fadvise flags if available
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hyung-hwan
2011-11-10 13:45:07 +00:00
parent 595aab7555
commit 1e36d2c141
2 changed files with 19 additions and 2 deletions
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16
qse/lib/cmn/fio.c
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@ -155,6 +155,8 @@ int qse_fio_init (
flag_and_attr |= FILE_FLAG_RANDOM_ACCESS;
if (flags & QSE_FIO_SEQUENTIAL)
flag_and_attr |= FILE_FLAG_SEQUENTIAL_SCAN;
if (flags & QSE_FIO_NOCACHE)
flag_and_attr |= FILE_FLAG_NO_BUFFERING;
handle = CreateFile (
path, desired_access, share_mode,
@ -369,6 +371,20 @@ int qse_fio_init (
if (handle == -1) return -1;
/* set some file access hints */
#if defined(POSIX_FADV_RANDOM)
if (flags & QSE_FIO_RANDOM)
posix_fadvise (handle, 0, 0, POSIX_FADV_RANDOM);
#endif
#if defined(POSIX_FADV_SEQUENTIAL)
if (flags & QSE_FIO_SEQUENTIAL)
posix_fadvise (handle, 0, 0, POSIX_FADV_SEQUENTIAL);
#endif
#if defined(POSIX_FADV_DONTNEED)
if (flags & QSE_FIO_NOCACHE)
posix_fadvise (handle, 0, 0, POSIX_FADV_DONTNEED);
#endif
#endif
if (flags & QSE_FIO_TEXT)