1 files changed, 115 insertions, 0 deletions
diff --git a/svm/svmdb.h b/svm/svmdb.h
new file mode 100644
index 00000000000..c5f59bbdd82
--- /dev/null
+++ b/svm/svmdb.h
@@ -0,0 +1,115 @@
+/* 
+ *------------------------------------------------------------------
+ * svmdb.h - shared VM database
+ *
+ * Copyright (c) 2009 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *------------------------------------------------------------------
+ */
+
+#ifndef __included_svmdb_h__
+#define __included_svmdb_h__
+
+#include "svm.h"
+
+typedef enum  {
+    SVMDB_ACTION_ILLEGAL=0,
+    SVMDB_ACTION_GET,           /* not clear why anyone would care */
+    SVMDB_ACTION_SET,
+    SVMDB_ACTION_UNSET,
+} svmdb_action_t;
+
+typedef struct {
+    int pid;
+    int signum;
+    u32 action:4;
+    u32 opaque:28;
+} svmdb_notify_t;
+
+typedef struct {
+    u8 *value;
+    svmdb_notify_t *notifications;
+    u32 elsize;
+} svmdb_value_t;
+
+typedef enum {
+    SVMDB_NAMESPACE_STRING=0,
+    SVMDB_NAMESPACE_VEC,
+    SVMDB_N_NAMESPACES,
+} svmdb_namespace_t;
+
+typedef struct {
+    uword version;
+    /* pool of values */
+    svmdb_value_t *values;
+    uword *namespaces [SVMDB_N_NAMESPACES];
+} svmdb_shm_hdr_t;
+
+#define SVMDB_SHM_VERSION 2
+
+typedef struct {
+    int flags;
+    int pid;
+    svm_region_t *db_rp;
+    svmdb_shm_hdr_t *shm;
+} svmdb_client_t;    
+
+typedef struct {
+    int add_del;
+    svmdb_namespace_t nspace;
+    char *var;
+    u32 elsize;
+    int signum;
+    u32 action:4;
+    u32 opaque:28;
+} svmdb_notification_args_t;
+
+/* 
+ * Must be a reasonable number, several mb smaller than 
+ * SVM_GLOBAL_REGION_SIZE, or no donut for you...
+ */
+#define SVMDB_DEFAULT_SIZE (4<<20)
+
+svmdb_client_t *svmdb_map (void);
+
+svmdb_client_t *svmdb_map_size (uword size);
+
+svmdb_client_t *svmdb_map_chroot (char *root_path);
+
+svmdb_client_t *svmdb_map_chroot_size (char *root_path, uword size);
+
+void svmdb_unmap (svmdb_client_t *client);
+void svmdb_local_unset_string_variable (svmdb_client_t *client, char *var);
+void svmdb_local_set_string_variable (svmdb_client_t *client, 
+                                      char *var, char *val);
+char *svmdb_local_get_string_variable (svmdb_client_t *client, char *var);
+void *svmdb_local_get_variable_reference (svmdb_client_t *client,
+                                          svmdb_namespace_t ns,
+                                          char *var);
+
+void svmdb_local_dump_strings (svmdb_client_t *client);
+
+void svmdb_local_unset_vec_variable (svmdb_client_t *client, char *var);
+void svmdb_local_set_vec_variable (svmdb_client_t *client, 
+                                      char *var, void *val, u32 elsize);
+void *svmdb_local_get_vec_variable (svmdb_client_t *client, char *var, 
+                                    u32 elsize);
+void svmdb_local_dump_vecs (svmdb_client_t *client);
+
+int svmdb_local_add_del_notification (svmdb_client_t *client, 
+                                      svmdb_notification_args_t *args);
+
+void *svmdb_local_find_or_add_vec_variable (svmdb_client_t *client, 
+                                            char *var, u32 nbytes);
+
+#endif /* __included_svmdb_h__ */