r15048: started on the server side implementation of oplocks. The code is not

functional yet, I'm committing so it doesn't diverge too much from
other peoples work. It is disabled by default.
(This used to be commit ba0b8a218dfe1ef6cdf7de724fb30650301369dd)

1 files changed, 36 insertions, 15 deletions

diff --git a/source4/ntvfs/posix/pvfs_open.c b/source4/ntvfs/posix/pvfs_open.c
index 5afb538db7..0a2cab8747 100644
--- a/source4/ntvfs/posix/pvfs_open.c
+++ b/source4/ntvfs/posix/pvfs_open.c
@@ -313,7 +313,8 @@ static NTSTATUS pvfs_open_directory(struct pvfs_state *pvfs,
 		
 		/* see if we are allowed to open at the same time as existing opens */
 		status = odb_open_file(lck, f->handle, f->handle->name->stream_id,
-				       share_access, access_mask, del_on_close, name->full_name);
+				       share_access, access_mask, del_on_close, 
+				       name->full_name, OPLOCK_NONE, NULL);
 
 		if (!NT_STATUS_IS_OK(status)) {
 			idr_remove(pvfs->files.idtree, f->fnum);
@@ -369,7 +370,8 @@ static NTSTATUS pvfs_open_directory(struct pvfs_state *pvfs,
 		}
 
 		status = odb_open_file(lck, f->handle, f->handle->name->stream_id,
-				       share_access, access_mask, del_on_close, name->full_name);
+				       share_access, access_mask, del_on_close, 
+				       name->full_name, OPLOCK_NONE, NULL);
 
 		if (!NT_STATUS_IS_OK(status)) {
 			goto cleanup_delete;
@@ -563,6 +565,7 @@ static NTSTATUS pvfs_create_file(struct pvfs_state *pvfs,
 	uint32_t attrib;
 	BOOL del_on_close;
 	struct pvfs_filename *parent;
+	uint32_t oplock_level = OPLOCK_NONE, oplock_granted;
 
 	if ((io->ntcreatex.in.file_attr & FILE_ATTRIBUTE_READONLY) &&
 	    (create_options & NTCREATEX_OPTIONS_DELETE_ON_CLOSE)) {
@@ -678,8 +681,17 @@ static NTSTATUS pvfs_create_file(struct pvfs_state *pvfs,
 		del_on_close = False;
 	}
 
+	if (pvfs->flags & PVFS_FLAG_FAKE_OPLOCKS) {
+		oplock_level = OPLOCK_NONE;
+	} else if (io->ntcreatex.in.flags & NTCREATEX_FLAGS_REQUEST_BATCH_OPLOCK) {
+		oplock_level = OPLOCK_BATCH;
+	} else if (io->ntcreatex.in.flags & NTCREATEX_FLAGS_REQUEST_OPLOCK) {
+		oplock_level = OPLOCK_EXCLUSIVE;
+	}
+
 	status = odb_open_file(lck, f->handle, name->stream_id,
-			       share_access, access_mask, del_on_close, name->full_name);
+			       share_access, access_mask, del_on_close, 
+			       name->full_name, oplock_level, &oplock_granted);
 	talloc_free(lck);
 	if (!NT_STATUS_IS_OK(status)) {
 		/* bad news, we must have hit a race - we don't delete the file
@@ -690,6 +702,10 @@ static NTSTATUS pvfs_create_file(struct pvfs_state *pvfs,
 		return status;
 	}
 
+	if (pvfs->flags & PVFS_FLAG_FAKE_OPLOCKS) {
+		oplock_granted = OPLOCK_BATCH;
+	}
+
 	f->fnum              = fnum;
 	f->session_info      = req->session_info;
 	f->smbpid            = req->smbpid;
@@ -718,12 +734,7 @@ static NTSTATUS pvfs_create_file(struct pvfs_state *pvfs,
 	talloc_set_destructor(f, pvfs_fnum_destructor);
 	talloc_set_destructor(f->handle, pvfs_handle_destructor);
 
-	
-	if (pvfs->flags & PVFS_FLAG_FAKE_OPLOCKS) {
-		io->generic.out.oplock_level  = OPLOCK_BATCH;
-	} else {
-		io->generic.out.oplock_level  = OPLOCK_NONE;
-	}
+	io->generic.out.oplock_level  = oplock_granted;
 	io->generic.out.file.fnum     = f->fnum;
 	io->generic.out.create_action = NTCREATEX_ACTION_CREATED;
 	io->generic.out.create_time   = name->dos.create_time;
@@ -994,6 +1005,7 @@ NTSTATUS pvfs_open(struct ntvfs_module_context *ntvfs,
 	uint32_t share_access;
 	uint32_t access_mask;
 	BOOL stream_existed, stream_truncate=False;
+	uint32_t oplock_level = OPLOCK_NONE, oplock_granted;
 
 	/* use the generic mapping code to avoid implementing all the
 	   different open calls. */
@@ -1174,9 +1186,18 @@ NTSTATUS pvfs_open(struct ntvfs_module_context *ntvfs,
 	talloc_set_destructor(f, pvfs_fnum_destructor);
 	talloc_set_destructor(f->handle, pvfs_handle_destructor);
 
+	if (pvfs->flags & PVFS_FLAG_FAKE_OPLOCKS) {
+		oplock_level = OPLOCK_NONE;
+	} else if (io->ntcreatex.in.flags & NTCREATEX_FLAGS_REQUEST_BATCH_OPLOCK) {
+		oplock_level = OPLOCK_BATCH;
+	} else if (io->ntcreatex.in.flags & NTCREATEX_FLAGS_REQUEST_OPLOCK) {
+		oplock_level = OPLOCK_EXCLUSIVE;
+	}
+
 	/* see if we are allowed to open at the same time as existing opens */
 	status = odb_open_file(lck, f->handle, f->handle->name->stream_id,
-			       share_access, access_mask, False, name->full_name);
+			       share_access, access_mask, False, name->full_name,
+			       oplock_level, &oplock_granted);
 
 	/* on a sharing violation we need to retry when the file is closed by 
 	   the other user, or after 1 second */
@@ -1190,6 +1211,10 @@ NTSTATUS pvfs_open(struct ntvfs_module_context *ntvfs,
 		return status;
 	}
 
+	if (pvfs->flags & PVFS_FLAG_FAKE_OPLOCKS) {
+		oplock_granted = OPLOCK_BATCH;
+	}
+
 	f->handle->have_opendb_entry = True;
 
 	if (access_mask & (SEC_FILE_WRITE_DATA | SEC_FILE_APPEND_DATA)) {
@@ -1252,11 +1277,7 @@ NTSTATUS pvfs_open(struct ntvfs_module_context *ntvfs,
 	    
 	talloc_free(lck);
 
-	if (pvfs->flags & PVFS_FLAG_FAKE_OPLOCKS) {
-		io->generic.out.oplock_level  = OPLOCK_BATCH;
-	} else {
-		io->generic.out.oplock_level  = OPLOCK_NONE;
-	}
+	io->generic.out.oplock_level  = oplock_granted;
 	io->generic.out.file.fnum     = f->fnum;
 	io->generic.out.create_action = stream_existed?
 		NTCREATEX_ACTION_EXISTED:NTCREATEX_ACTION_CREATED;