store: Introduced sdb_store_host_tojson() to serialize a single host.

[sysdb.git] / src / include / core / store.h

diff --git a/src/include/core/store.h b/src/include/core/store.h
index 143fa7e54409a979aea959f5bbe4432d4473576b..99b2ead200cce151cc6775882903b6235fe042fc 100644 (file)
--- a/src/include/core/store.h
+++ b/src/include/core/store.h
@@ -32,6 +32,7 @@
 #include "core/object.h"
 #include "core/time.h"
 #include "utils/llist.h"
+#include "utils/strbuf.h"
 
 #include <stdio.h>
 
@@ -39,50 +40,13 @@
 extern "C" {
 #endif
 
-extern const sdb_type_t sdb_host_type;
-extern const sdb_type_t sdb_attribute_type;
-extern const sdb_type_t sdb_service_type;
-
-typedef struct {
-       sdb_object_t super;
-       sdb_time_t last_update;
-} sdb_store_obj_t;
-#define SDB_STORE_OBJ_INIT(t) { SDB_OBJECT_TYPED_INIT(t), 0 }
-#define SDB_STORE_OBJ(obj) ((sdb_store_obj_t *)(obj))
-#define SDB_CONST_STORE_OBJ(obj) ((const sdb_store_obj_t *)(obj))
-
-typedef struct {
-       sdb_store_obj_t super;
-
-       char *hostname;
-} sdb_service_t;
-#define SDB_SVC_INIT { SDB_STORE_OBJ_INIT(sdb_service_type), NULL }
-#define SDB_SVC(obj) ((sdb_service_t *)(obj))
-#define SDB_CONST_SVC(obj) ((const sdb_service_t *)(obj))
-
-typedef struct {
-       sdb_store_obj_t super;
-
-       char *attr_value;
-       char *hostname;
-} sdb_attribute_t;
-#define SDB_ATTR_INIT { SDB_STORE_OBJ_INIT(sdb_attribute_type), NULL, NULL }
-#define SDB_ATTR(obj) ((sdb_attribute_t *)(obj))
-#define SDB_CONST_ATTR(obj) ((const sdb_attribute_t *)(obj))
-
-typedef struct {
-       sdb_store_obj_t super;
-
-       sdb_llist_t *attributes;
-       sdb_llist_t *services;
-} sdb_host_t;
-#define SDB_HOST_INIT { SDB_STORE_OBJ_INIT(sdb_host_type), NULL, NULL }
-#define SDB_HOST(obj) ((sdb_host_t *)(obj))
-#define SDB_CONST_HOST(obj) ((const sdb_host_t *)(obj))
-
-/* shortcuts for accessing the sdb_store_obj_t attributes of inheriting
- * objects */
-#define _last_update super.last_update
+/*
+ * sdb_store_base_t represents the super-class of any object stored in the
+ * database. It inherits from sdb_object_t and may safely be cast to a generic
+ * object to access its name.
+ */
+struct sdb_store_base;
+typedef struct sdb_store_base sdb_store_base_t;
 
 /*
  * sdb_store_host:
@@ -107,12 +71,11 @@ sdb_store_has_host(const char *name);
 /*
  * sdb_store_attribute:
  * Add/update a host's attribute in the store. If the attribute, identified by
- * its name, already exists for the specified host, it will be updated
- * according to the specified 'attr' object. If the referenced host does not
- * exist, an error will be reported. Else, a new entry will be created in the
- * store. Any memory required for storing the entry will be allocated and
- * managed by the store itself. The specified attribute-object will not be
- * referenced or further accessed.
+ * its key, already exists for the specified host, it will be updated to the
+ * specified values. If the referenced host does not exist, an error will be
+ * reported. Else, a new entry will be created in the store. Any memory
+ * required for storing the entry will be allocated and managed by the store
+ * itself.
  *
  * Returns:
  *  - 0 on success
@@ -121,10 +84,8 @@ sdb_store_has_host(const char *name);
  *  - a negative value on error
  */
 int
-sdb_store_attribute(const sdb_attribute_t *attr);
-
-sdb_service_t *
-sdb_service_create(const char *hostname, const char *name);
+sdb_store_attribute(const char *hostname, const char *key, const char *value,
+               sdb_time_t last_update);
 
 /*
  * sdb_store_service:
@@ -143,13 +104,32 @@ sdb_service_create(const char *hostname, const char *name);
  *  - a negative value on error
  */
 int
-sdb_store_service(const sdb_service_t *svc);
+sdb_store_service(const char *hostname, const char *name,
+               sdb_time_t last_update);
 
-const sdb_service_t *
-sdb_store_get_service(const sdb_host_t *host, const char *name);
+/*
+ * sdb_store_tojson:
+ * Serialize the entire store to JSON and append the result to the specified
+ * buffer.
+ *
+ * Returns:
+ *  - 0 on success
+ *  - a negative value on error
+ */
+int
+sdb_store_tojson(sdb_strbuf_t *buf);
 
+/*
+ * sdb_store_host_tojson:
+ * Serialize a host object to JSON and append the result to the specified
+ * buffer.
+ *
+ * Returns:
+ *  - 0 on success
+ *  - a negative value on error
+ */
 int
-sdb_store_dump(FILE *fh);
+sdb_store_host_tojson(sdb_store_base_t *host, sdb_strbuf_t *buf);
 
 #ifdef __cplusplus
 } /* extern "C" */