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-rw-r--r--sys/vm/vm_obj.c61
1 files changed, 61 insertions, 0 deletions
diff --git a/sys/vm/vm_obj.c b/sys/vm/vm_obj.c
new file mode 100644
index 0000000..c5fc921
--- /dev/null
+++ b/sys/vm/vm_obj.c
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Hyra nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <vm/obj.h>
+#include <vm/dynalloc.h>
+#include <sys/errno.h>
+#include <string.h>
+
+int
+vm_obj_init(struct vm_object **res, struct vnode *vnode)
+{
+ struct vm_object *obj = dynalloc(sizeof(struct vm_object));
+
+ if (obj == NULL) {
+ return -ENOMEM;
+ }
+
+ memset(obj, 0, sizeof(struct vm_object));
+ obj->vnode = vnode;
+ obj->pgops = &g_vnode_pagerops;
+ *res = obj;
+ return 0;
+}
+
+int
+vm_obj_destroy(struct vm_object *obj)
+{
+ struct vnode *vp = obj->vnode;
+
+ if (vp->vmobj != NULL)
+ vp->vmobj = NULL;
+
+ dynfree(obj);
+ return 0;
+}