X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=src%2Finclude%2Fcore%2Fstore.h;h=ab11a21776a193a460da5e3a8e100b4d1f25cff7;hb=bc9f267e9066b70b8e379d11da80cb6b2749d49e;hp=3c2b7a8e201d21eecf08da5836696844f8e3c184;hpb=bef7167f0dc1fd405e35d5cbffb3c0820945a9ea;p=sysdb.git diff --git a/src/include/core/store.h b/src/include/core/store.h index 3c2b7a8..ab11a21 100644 --- a/src/include/core/store.h +++ b/src/include/core/store.h @@ -30,8 +30,9 @@ #include "sysdb.h" #include "core/object.h" -#include "utils/time.h" +#include "core/time.h" #include "utils/llist.h" +#include "utils/strbuf.h" #include @@ -39,60 +40,21 @@ extern "C" { #endif -typedef struct { - sdb_object_t parent; - - sdb_time_t last_update; - char *name; -} sdb_store_obj_t; -#define SDB_STORE_OBJ_INIT { SDB_OBJECT_INIT, 0, NULL } -#define SDB_STORE_OBJ(obj) ((sdb_store_obj_t *)(obj)) - -typedef struct { - sdb_store_obj_t parent; -#define svc_last_update parent.last_update -#define svc_name parent.name - - char *hostname; -} sdb_service_t; -#define SDB_SVC_INIT { SDB_STORE_OBJ_INIT, NULL } -#define SDB_SVC(obj) ((sdb_service_t *)(obj)) - -typedef struct { - sdb_store_obj_t parent; -#define attr_last_update parent.last_update -#define attr_name parent.name - - char *attr_value; - char *hostname; -} sdb_attribute_t; -#define SDB_ATTR_INIT { SDB_STORE_OBJ_INIT, NULL, NULL } -#define SDB_ATTR(obj) ((sdb_attribute_t *)(obj)) - -typedef struct { - sdb_store_obj_t parent; -#define host_last_update parent.last_update -#define host_name parent.name - - sdb_llist_t *attributes; - sdb_llist_t *services; -} sdb_host_t; -#define SDB_HOST_INIT { SDB_STORE_OBJ_INIT, NULL, NULL } -#define SDB_HOST(obj) ((sdb_host_t *)(obj)) - -sdb_host_t * -sdb_host_create(const char *name); - -sdb_host_t * -sdb_host_clone(const sdb_host_t *host); +/* + * 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: - * Add/update a host in the store. If the host, identified by its name, - * already exists, it will be updated according to the specified 'host' - * object. Else, a new entry will be created in the store. Any memory required - * for storing the entry will be allocated an managed by the store itself. The - * specified host-object will not be referenced or further accessed. + * Add/update a host in the store. If the host, identified by its + * canonicalized name, already exists, it will be updated according to the + * specified name and timestamp. Else, a new entry will be created in the + * store. Any memory required for storing the entry will be allocated an + * managed by the store itself. * * Returns: * - 0 on success @@ -101,27 +63,30 @@ sdb_host_clone(const sdb_host_t *host); * - a negative value on error */ int -sdb_store_host(const sdb_host_t *host); - -const sdb_host_t * -sdb_store_get_host(const char *name); +sdb_store_host(const char *name, sdb_time_t last_update); -sdb_attribute_t * -sdb_attribute_create(const char *hostname, - const char *name, const char *value); +/* + * sdb_store_has_host: + * sdb_store_get_host: + * Query the store for a host by its (canonicalized) name. + * + * sdb_store_get_host increments the ref count of the host object. The caller + * needs to deref it when no longer using it. + */ +_Bool +sdb_store_has_host(const char *name); -sdb_attribute_t * -sdb_attribute_clone(const sdb_attribute_t *attr); +sdb_store_base_t * +sdb_store_get_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 @@ -130,13 +95,8 @@ sdb_attribute_clone(const sdb_attribute_t *attr); * - 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_service_t * -sdb_service_clone(const sdb_service_t *svc); +sdb_store_attribute(const char *hostname, const char *key, const char *value, + sdb_time_t last_update); /* * sdb_store_service: @@ -155,13 +115,44 @@ sdb_service_clone(const sdb_service_t *svc); * - 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); +/* + * Flags for serialization functions. + * + * By default, the full object will be included in the serialized output. When + * specifying any of the flags, the respective information will be left out. + */ +enum { + SDB_SKIP_ATTRIBUTES = 1 << 0, + SDB_SKIP_SERVICES = 1 << 1, + SDB_SKIP_SERVICE_ATTRIBUTES = 1 << 2, +}; +/* + * 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, int flags); + +/* + * 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, int flags); #ifdef __cplusplus } /* extern "C" */