Author: dick
Date: 2005-03-21 09:22:52 -0500 (Mon, 21 Mar 2005)
New Revision: 42048
Modified:
branches/dick/io-layer-no-daemon/handles.c
Log:
More locking for file shares
Modified: branches/dick/io-layer-no-daemon/handles.c
===================================================================
--- branches/dick/io-layer-no-daemon/handles.c 2005-03-21 12:38:38 UTC (rev
42047)
+++ branches/dick/io-layer-no-daemon/handles.c 2005-03-21 14:22:52 UTC (rev
42048)
@@ -1727,10 +1727,23 @@
void _wapi_handle_update_refs (void)
{
- guint32 i;
+ guint32 i, lock_now;
+ int thr_ret;
_WAPI_HANDLE_COLLECTION_UNSAFE;
+ /* Prevent file share entries racing with us */
+ do {
+ lock_now = (guint32)(time(NULL) & 0xFFFFFFFF);
+
+ thr_ret = _wapi_timestamp_exclusion
(&_wapi_fileshare_layout->share_check, lock_now);
+
+ if (thr_ret == EBUSY) {
+ _wapi_handle_spin (100);
+ }
+ } while (thr_ret == EBUSY);
+ g_assert(thr_ret == 0);
+
for (i = 0; i < _wapi_private_handle_count; i++) {
struct _WapiHandleUnshared *handle = &_wapi_private_handles[i];
guint32 now = (guint32)(time (NULL) & 0xFFFFFFFF);
@@ -1772,5 +1785,6 @@
}
}
+ thr_ret = _wapi_timestamp_release
(&_wapi_fileshare_layout->share_check, lock_now);
_WAPI_HANDLE_COLLECTION_SAFE;
}
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