X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=src%2Finclude%2Fcore%2Fstore.h;h=1d64c4b7bee0a0f2d3944272521f3c74a85bc472;hb=0a17f3d9f23b988420acbf5669bda4f2a0936c6b;hp=890482a965ffe0b119603d7fcf728fe790c71a6f;hpb=b1d0d9add668e008f5b59f8ae76d8167b223e056;p=sysdb.git diff --git a/src/include/core/store.h b/src/include/core/store.h index 890482a..1d64c4b 100644 --- a/src/include/core/store.h +++ b/src/include/core/store.h @@ -56,12 +56,12 @@ enum { /* - * sdb_store_base_t represents the super-class of any object stored in the + * sdb_store_obj_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; +struct sdb_store_obj; +typedef struct sdb_store_obj sdb_store_obj_t; /* * sdb_store_clear: @@ -98,7 +98,7 @@ sdb_store_host(const char *name, sdb_time_t last_update); _Bool sdb_store_has_host(const char *name); -sdb_store_base_t * +sdb_store_obj_t * sdb_store_get_host(const char *name); /* @@ -123,7 +123,7 @@ sdb_store_attribute(const char *hostname, /* * sdb_store_service: - * Add/update a store in the store. If the service, identified by its name, + * Add/update a service in the store. If the service, identified by its name, * already exists for the specified host, it will be updated according to the * specified 'service' object. If the referenced host does not exist, an error * will be reported. Else, a new entry will be created in the store. Any @@ -141,14 +141,50 @@ int sdb_store_service(const char *hostname, const char *name, sdb_time_t last_update); +/* + * sdb_store_service_attr: + * Add/update a service's attribute in the store. If the attribute, identified + * by its key, already exists for the specified service, it will be updated to + * the specified value. If the references service (for the specified host) + * does not exist, an error will be reported. Any memory required for storing + * the entry will be allocated and managed by the store itself. + * + * Returns: + * - 0 on success + * - a positive value if the new entry is older than the currently stored + * entry (in this case, no update will happen) + * - a negative value on error + */ +int +sdb_store_service_attr(const char *hostname, const char *service, + const char *key, const sdb_data_t *value, sdb_time_t last_update); + +/* + * Conditionals may be used to lookup hosts from the store based on a + * conditional expression. + * + * A conditional object inherits from sdb_object_t and, thus, may safely be + * cast to a generic object. + */ +struct sdb_store_cond; +typedef struct sdb_store_cond sdb_store_cond_t; +#define SDB_STORE_COND(obj) ((sdb_store_cond_t *)(obj)) + +/* + * sdb_store_attr_cond: + * Creates a conditional based on attribute values. The value of stored + * attributes is compared against the specified value. See sdb_data_cmp for + * details about the comparison. + */ +sdb_store_cond_t * +sdb_store_attr_cond(const char *name, const sdb_data_t *value); + /* * Store matchers may be used to lookup hosts from the store based on their * various attributes. Service and attribute matchers are applied to a host's * services and attributes and evaluate to true if *any* service or attribute * matches. * - * For each matcher object, *all* specified attributes have to match. - * * A store matcher object inherits from sdb_object_t and, thus, may safely be * cast to a generic object. */ @@ -174,6 +210,25 @@ sdb_store_name_matcher(int type, const char *name, _Bool re); sdb_store_matcher_t * sdb_store_attr_matcher(const char *name, const char *value, _Bool re); +/* + * sdb_store_lt_matcher, sdb_store_le_matcher, sdb_store_eq_matcher, + * sdb_store_ge_matcher, sdb_store_gt_matcher: + * Creates a matcher based on a conditional. The matcher matches objects for + * which the conditional evaluates the object to compare less than, less or + * equal, equal, greater or equal, or greater than the conditional's value + * repsectively. + */ +sdb_store_matcher_t * +sdb_store_lt_matcher(sdb_store_cond_t *cond); +sdb_store_matcher_t * +sdb_store_le_matcher(sdb_store_cond_t *cond); +sdb_store_matcher_t * +sdb_store_eq_matcher(sdb_store_cond_t *cond); +sdb_store_matcher_t * +sdb_store_ge_matcher(sdb_store_cond_t *cond); +sdb_store_matcher_t * +sdb_store_gt_matcher(sdb_store_cond_t *cond); + /* * sdb_store_matcher_parse_cmp: * Parse a simple compare expression (. ). @@ -184,7 +239,7 @@ sdb_store_attr_matcher(const char *name, const char *value, _Bool re); */ sdb_store_matcher_t * sdb_store_matcher_parse_cmp(const char *obj_type, const char *attr, - const char *op, const char *value); + const char *op, const sdb_data_t *value); /* * sdb_store_dis_matcher: @@ -216,7 +271,7 @@ sdb_store_inv_matcher(sdb_store_matcher_t *m); * - 0 else */ int -sdb_store_matcher_matches(sdb_store_matcher_t *m, sdb_store_base_t *obj); +sdb_store_matcher_matches(sdb_store_matcher_t *m, sdb_store_obj_t *obj); /* * sdb_store_matcher_tostring: @@ -231,7 +286,7 @@ sdb_store_matcher_tostring(sdb_store_matcher_t *m, char *buf, size_t buflen); * Lookup callback. It is called for each matching object when looking up data * in the store. The lookup aborts if the callback returns non-zero. */ -typedef int (*sdb_store_lookup_cb)(sdb_store_base_t *obj, void *user_data); +typedef int (*sdb_store_lookup_cb)(sdb_store_obj_t *obj, void *user_data); /* * sdb_store_lookup: @@ -282,13 +337,13 @@ sdb_store_tojson(sdb_strbuf_t *buf, int flags); * - a negative value on error */ int -sdb_store_host_tojson(sdb_store_base_t *host, sdb_strbuf_t *buf, int flags); +sdb_store_host_tojson(sdb_store_obj_t *host, sdb_strbuf_t *buf, int flags); /* * sdb_store_iter_cb: * Store iterator callback. Iteration stops if the callback returns non-zero. */ -typedef int (*sdb_store_iter_cb)(sdb_store_base_t *obj, void *user_data); +typedef int (*sdb_store_iter_cb)(sdb_store_obj_t *obj, void *user_data); /* * sdb_store_iterate: