frontend: Make connection I/O handling more flexible.

[sysdb.git] / src / frontend / connection-private.h

diff --git a/src/frontend/connection-private.h b/src/frontend/connection-private.h
index ef445d36bbbeb636bcf0a26d1355c0975b316ddb..a0f28ae985b37a81442ad7145eb3a056e9dffbca 100644 (file)
--- a/src/frontend/connection-private.h
+++ b/src/frontend/connection-private.h
@@ -58,6 +58,12 @@ struct sdb_conn {
        struct sockaddr_storage client_addr;
        socklen_t client_addr_len;
 
+       /* connection handling */
+       ssize_t (*read)(sdb_conn_t *, size_t);
+       ssize_t (*write)(sdb_conn_t *, const void *, size_t);
+       int (*finish)(sdb_conn_t *);
+       void *session;
+
        /* read buffer */
        sdb_strbuf_t *buf;
 
@@ -73,6 +79,7 @@ struct sdb_conn {
 
        /* user information */
        char *username; /* NULL if the user has not been authenticated */
+       bool  ready; /* indicates that startup finished successfully */
 };
 #define CONN(obj) ((sdb_conn_t *)(obj))
 
@@ -80,6 +87,12 @@ struct sdb_conn {
  * node types
  */
 
+typedef struct {
+       sdb_conn_node_t super;
+       sdb_store_expr_t *expr;
+} conn_expr_t;
+#define CONN_EXPR(obj) ((conn_expr_t *)(obj))
+
 typedef struct {
        sdb_conn_node_t super;
        sdb_store_matcher_t *matcher;
@@ -88,24 +101,64 @@ typedef struct {
 
 typedef struct {
        sdb_conn_node_t super;
+       int type;
        conn_matcher_t *filter;
 } conn_list_t;
 #define CONN_LIST(obj) ((conn_list_t *)(obj))
 
 typedef struct {
        sdb_conn_node_t super;
-       char *name;
+       int type;
+       char *host;
+       char *name; /* NULL for type == SDB_HOST */
        conn_matcher_t *filter;
 } conn_fetch_t;
 #define CONN_FETCH(obj) ((conn_fetch_t *)(obj))
 
 typedef struct {
        sdb_conn_node_t super;
+       int type;
        conn_matcher_t *matcher;
        conn_matcher_t *filter;
 } conn_lookup_t;
 #define CONN_LOOKUP(obj) ((conn_lookup_t *)(obj))
 
+typedef struct {
+       sdb_conn_node_t super;
+       char *name;
+       sdb_time_t last_update;
+} conn_store_host_t;
+#define CONN_STORE_HOST(obj) ((conn_store_host_t *)(obj))
+
+typedef struct {
+       sdb_conn_node_t super;
+       char *hostname;
+       char *name;
+       sdb_time_t last_update;
+} conn_store_svc_t;
+#define CONN_STORE_SVC(obj) ((conn_store_svc_t *)(obj))
+
+typedef struct {
+       sdb_conn_node_t super;
+       char *hostname;
+       char *name;
+       char *store_type; /* optional */
+       char *store_id;   /* optional */
+       sdb_time_t last_update;
+} conn_store_metric_t;
+#define CONN_STORE_METRIC(obj) ((conn_store_metric_t *)(obj))
+
+typedef struct {
+       sdb_conn_node_t super;
+       int parent_type;
+       char *hostname; /* optional */
+       char *parent;
+       char *key;
+       sdb_data_t value;
+       sdb_time_t last_update;
+} conn_store_attr_t;
+#define CONN_STORE_ATTR(obj) ((conn_store_attr_t *)(obj))
+
 typedef struct {
        sdb_conn_node_t super;
        char *hostname;
@@ -118,6 +171,12 @@ typedef struct {
  * type helper functions
  */
 
+static void __attribute__((unused))
+conn_expr_destroy(sdb_object_t *obj)
+{
+       sdb_object_deref(SDB_OBJ(CONN_EXPR(obj)->expr));
+} /* conn_expr_destroy */
+
 static void __attribute__((unused))
 conn_matcher_destroy(sdb_object_t *obj)
 {
@@ -133,6 +192,8 @@ conn_list_destroy(sdb_object_t *obj)
 static void __attribute__((unused))
 conn_fetch_destroy(sdb_object_t *obj)
 {
+       if (CONN_FETCH(obj)->host)
+               free(CONN_FETCH(obj)->host);
        if (CONN_FETCH(obj)->name)
                free(CONN_FETCH(obj)->name);
        sdb_object_deref(SDB_OBJ(CONN_FETCH(obj)->filter));
@@ -145,6 +206,61 @@ conn_lookup_destroy(sdb_object_t *obj)
        sdb_object_deref(SDB_OBJ(CONN_LOOKUP(obj)->filter));
 } /* conn_lookup_destroy */
 
+static void __attribute__((unused))
+conn_store_host_destroy(sdb_object_t *obj)
+{
+       conn_store_host_t *host = CONN_STORE_HOST(obj);
+       if (host->name)
+               free((void *)host->name);
+       host->name = NULL;
+} /* conn_store_host_destroy */
+
+static void __attribute__((unused))
+conn_store_svc_destroy(sdb_object_t *obj)
+{
+       conn_store_svc_t *svc = CONN_STORE_SVC(obj);
+       if (svc->hostname)
+               free((void *)svc->hostname);
+       svc->hostname = NULL;
+       if (svc->name)
+               free((void *)svc->name);
+       svc->name = NULL;
+} /* conn_store_svc_destroy */
+
+static void __attribute__((unused))
+conn_store_metric_destroy(sdb_object_t *obj)
+{
+       conn_store_metric_t *metric = CONN_STORE_METRIC(obj);
+       if (metric->hostname)
+               free((void *)metric->hostname);
+       metric->hostname = NULL;
+       if (metric->name)
+               free((void *)metric->name);
+       metric->name = NULL;
+       if (metric->store_type)
+               free((void *)metric->store_type);
+       metric->store_type = NULL;
+       if (metric->store_id)
+               free((void *)metric->store_id);
+       metric->store_id = NULL;
+} /* conn_store_metric_destroy */
+
+static void __attribute__((unused))
+conn_store_attr_destroy(sdb_object_t *obj)
+{
+       conn_store_attr_t *attr = CONN_STORE_ATTR(obj);
+       if (attr->hostname)
+               free((void *)attr->hostname);
+       attr->hostname = NULL;
+       if (attr->parent)
+               free((void *)attr->parent);
+       attr->parent = NULL;
+       if (attr->key)
+               free((void *)attr->key);
+       attr->key = NULL;
+       sdb_data_free_datum(&attr->value);
+} /* conn_store_attr_destroy */
+
 static void __attribute__((unused))
 conn_ts_destroy(sdb_object_t *obj)
 {