Changeset: 80534e3eab59 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/80534e3eab59
Modified Files:
common/utils/mutils.c
gdk/gdk_posix.c
Branch: Jan2022
Log Message:
On Windows, avoid indexing files we create.
When opening a file for writing with fopen, or when the O_CREAT flag
is specified in open, or when creating a file for a memory map, we
specify the FILE_ATTRIBUTE_NOT_CONTENT_INDEXED file attribute.
diffs (43 lines):
diff --git a/common/utils/mutils.c b/common/utils/mutils.c
--- a/common/utils/mutils.c
+++ b/common/utils/mutils.c
@@ -498,7 +498,7 @@ MT_lockf(const char *filename, int mode)
* directly */
fh = CreateFileW(wfilename,
GENERIC_READ | GENERIC_WRITE, 0,
- NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
+ NULL, OPEN_ALWAYS,
FILE_ATTRIBUTE_NOT_CONTENT_INDEXED, NULL);
free(wfilename);
if (fh == INVALID_HANDLE_VALUE)
return -2;
@@ -560,8 +560,8 @@ MT_fopen(const char *filename, const cha
wfilename = utf8towchar(filename);
wmode = utf8towchar(mode);
FILE *f = NULL;
- if (wfilename != NULL && wmode != NULL)
- f = _wfopen(wfilename, wmode);
+ if (wfilename != NULL && wmode != NULL && (f = _wfopen(wfilename,
wmode)) != NULL && strchr(mode, 'w') != NULL)
+ SetFileAttributesW(wfilename,
FILE_ATTRIBUTE_NOT_CONTENT_INDEXED);
free(wfilename);
free(wmode);
return f;
@@ -576,6 +576,8 @@ MT_open(const char *filename, int flags)
int fd;
if (_wsopen_s(&fd, wfilename, flags, _SH_DENYNO, _S_IREAD | _S_IWRITE)
!= 0)
fd = -1;
+ else if (flags & O_CREAT)
+ SetFileAttributesW(wfilename,
FILE_ATTRIBUTE_NOT_CONTENT_INDEXED);
free(wfilename);
return fd;
}
diff --git a/gdk/gdk_posix.c b/gdk/gdk_posix.c
--- a/gdk/gdk_posix.c
+++ b/gdk/gdk_posix.c
@@ -734,6 +734,7 @@ MT_mmap(const char *path, int mode, size
mode3 = PAGE_READWRITE;
mode4 = FILE_MAP_WRITE;
}
+ mode2 |= FILE_ATTRIBUTE_NOT_CONTENT_INDEXED;
sa.nLength = sizeof(SECURITY_ATTRIBUTES);
sa.bInheritHandle = TRUE;
sa.lpSecurityDescriptor = 0;
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