X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=libmemcached%2Fmemcached_io.h;h=5442277447d658020b5a66a28427fad353bd04d8;hb=59aa21d9cc59e8ed7cc8c4c5758cb392bb0c5b5a;hp=1bed79599787930e2c2b31296e90e7cc0bc2b3fb;hpb=704c4c319482776ad5566e1e3ec69c31a651fb51;p=awesomized%2Flibmemcached

diff --git a/libmemcached/memcached_io.h b/libmemcached/memcached_io.h
index 1bed7959..54422774 100644
--- a/libmemcached/memcached_io.h
+++ b/libmemcached/memcached_io.h
@@ -4,6 +4,25 @@
 #ifndef __MEMCACHED_IO_H__
 #define __MEMCACHED_IO_H__
 
+#define MAX_UDP_DATAGRAM_LENGTH 1400
+#define UDP_DATAGRAM_HEADER_LENGTH 8
+#define UDP_REQUEST_ID_MSG_SIG_DIGITS 10
+#define UDP_REQUEST_ID_THREAD_MASK 0xFFFF << UDP_REQUEST_ID_MSG_SIG_DIGITS
+#define get_udp_datagram_request_id(A) ntohs((A)->request_id)
+#define get_udp_datagram_seq_num(A) ntohs((A)->sequence_number)
+#define get_udp_datagram_num_datagrams(A) ntohs((A)->num_datagrams)
+#define get_msg_num_from_request_id(A) ( (A) & (~(UDP_REQUEST_ID_THREAD_MASK)) )
+#define get_thread_id_from_request_id(A) ( (A) & (UDP_REQUEST_ID_THREAD_MASK) ) >> UDP_REQUEST_ID_MSG_SIG_DIGITS
+#define generate_udp_request_thread_id(A) (A) << UDP_REQUEST_ID_MSG_SIG_DIGITS
+#define UDP_REQUEST_ID_MAX_THREAD_ID get_thread_id_from_request_id(0xFFFF)
+
+struct udp_datagram_header_st {
+  uint16_t request_id;
+  uint16_t sequence_number;
+  uint16_t num_datagrams;
+  uint16_t reserved;
+};
+
 ssize_t memcached_io_write(memcached_server_st *ptr,
                            const void *buffer, size_t length, char with_flush);
 void memcached_io_reset(memcached_server_st *ptr);
@@ -22,4 +41,9 @@ memcached_return memcached_safe_read(memcached_server_st *ptr,
 memcached_return memcached_read_one_response(memcached_server_st *ptr,
                                              char *buffer, size_t buffer_length,
                                              memcached_result_st *result);
+memcached_return memcached_io_init_udp_header(memcached_server_st *ptr,
+                                              uint16_t thread_id);
+
+memcached_server_st *memcached_io_get_readable_server(memcached_st *memc);
+
 #endif /* __MEMCACHED_IO_H__ */