diff options
Diffstat (limited to 'ares_private.h')
| -rw-r--r-- | ares_private.h | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/ares_private.h b/ares_private.h index f031451..dd9070a 100644 --- a/ares_private.h +++ b/ares_private.h @@ -89,6 +89,11 @@ struct send_request { const unsigned char *data; size_t len; + /* The query for which we're sending this data */ + struct query* owner_query; + /* The buffer we're using, if we have our own copy of the packet */ + unsigned char *data_storage; + /* Next request in queue */ struct send_request *next; }; @@ -110,6 +115,17 @@ struct server_state { /* TCP output queue */ struct send_request *qhead; struct send_request *qtail; + + /* Which incarnation of this connection is this? We don't want to + * retransmit requests into the very same socket, but if the server + * closes on us and we re-open the connection, then we do want to + * re-send. */ + int tcp_connection_generation; + + /* Is this server broken? We mark connections as broken when a + * request that is queued for sending times out. + */ + int is_broken; }; struct query { @@ -130,7 +146,7 @@ struct query { /* Query status */ int try; int server; - int *skip_server; + struct query_server_info *server_info; /* per-server state */ int using_tcp; int error_status; @@ -138,6 +154,12 @@ struct query { struct query *next; }; +/* Per-server state for a query */ +struct query_server_info { + int skip_server; /* should we skip server, due to errors, etc? */ + int tcp_connection_generation; /* into which TCP connection did we send? */ +}; + /* An IP address pattern; matches an IP address X if X & mask == addr */ #define PATTERN_MASK 0x1 #define PATTERN_CIDR 0x2 @@ -188,6 +210,9 @@ struct ares_channeldata { /* key to use when generating new ids */ rc4_key id_key; + /* Generation number to use for the next TCP socket open/close */ + int tcp_connection_generation; + /* Active queries */ struct query *queries; @@ -220,4 +245,3 @@ short ares__generate_new_id(rc4_key* key); #endif #endif /* __ARES_PRIVATE_H */ - |