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New function to grab a directory connection fetching a resource
We need this to tell if a given consensus flavor is being downloaded or not.
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@ -3397,6 +3397,33 @@ connection_get_by_type_state_rendquery(int type, int state,
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return NULL;
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}
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/** Return a directory connection (if any one exists) that is fetching
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* the item described by <b>state</b>/<b>resource</b> */
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dir_connection_t *
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connection_dir_get_by_purpose_and_resource(int purpose,
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const char *resource)
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{
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smartlist_t *conns = get_connection_array();
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SMARTLIST_FOREACH_BEGIN(conns, connection_t *, conn) {
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dir_connection_t *dirconn;
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if (conn->type != CONN_TYPE_DIR || conn->marked_for_close ||
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conn->purpose != purpose)
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continue;
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dirconn = TO_DIR_CONN(conn);
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if (dirconn->requested_resource == NULL) {
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if (resource == NULL)
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return dirconn;
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} else if (resource) {
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if (0 == strcmp(resource, dirconn->requested_resource))
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return dirconn;
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}
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} SMARTLIST_FOREACH_END(conn);
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return NULL;
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}
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/** Return an open, non-marked connection of a given type and purpose, or NULL
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* if no such connection exists. */
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connection_t *
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@ -124,6 +124,8 @@ connection_t *connection_get_by_type_addr_port_purpose(int type,
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connection_t *connection_get_by_type_state(int type, int state);
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connection_t *connection_get_by_type_state_rendquery(int type, int state,
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const char *rendquery);
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dir_connection_t *connection_dir_get_by_purpose_and_resource(
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int state, const char *resource);
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#define connection_speaks_cells(conn) ((conn)->type == CONN_TYPE_OR)
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int connection_is_listener(connection_t *conn);
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