Changeset: 2cdfaed6227c for MonetDB
URL: http://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=2cdfaed6227c
Modified Files:
gdk/gdk_storage.c
Branch: Dec2016
Log Message:
If we have MS_ASYNC, i.e. asynchronous msync, use it instead of forking off a
thread.
diffs (38 lines):
diff --git a/gdk/gdk_storage.c b/gdk/gdk_storage.c
--- a/gdk/gdk_storage.c
+++ b/gdk/gdk_storage.c
@@ -637,6 +637,7 @@ DESCclean(BAT *b)
#define MSYNC_BACKGROUND
#ifndef DISABLE_MSYNC
+#ifndef MS_ASYNC
struct msync {
bat id;
Heap *h;
@@ -652,11 +653,18 @@ BATmsyncImplementation(void *arg)
GDKfree(arg);
}
#endif
+#endif
void
BATmsync(BAT *b)
{
#ifndef DISABLE_MSYNC
+#ifdef MS_ASYNC
+ if (b->theap.storage == STORE_MMAP)
+ (void) msync(b->theap.base, b->theap.free, MS_ASYNC);
+ if (b->tvheap && b->tvheap->storage == STORE_MMAP)
+ (void) msync(b->tvheap->base, b->tvheap->free, MS_ASYNC);
+#else
#ifdef MSYNC_BACKGROUND
MT_Id tid;
#endif
@@ -694,6 +702,7 @@ BATmsync(BAT *b)
BATmsyncImplementation(arg);
#endif
}
+#endif
#else
(void) b;
#endif /* DISABLE_MSYNC */
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