X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=libmemcached%2Fmemcached_io.h;h=da253955d156db2c5b35458f894f0803076cf635;hb=7b548d21a8eafec0b830ad1bd6429cecd4eaeba8;hp=30ac18b2f448fb28a557ce3489cd9dfa45ffd734;hpb=8fce86636639afaeac4ca0e869e8bcd833324a62;p=awesomized%2Flibmemcached diff --git a/libmemcached/memcached_io.h b/libmemcached/memcached_io.h index 30ac18b2..da253955 100644 --- a/libmemcached/memcached_io.h +++ b/libmemcached/memcached_io.h @@ -1,9 +1,59 @@ -/* Server IO, Not public! */ -#include +/* + * Summary: Server IO, Not public! + * + * Copy: See Copyright for the status of this software. + * + * Author: Brian Aker + */ + +#ifndef LIBMEMCACHED_MEMCACHED_IO_H +#define LIBMEMCACHED_MEMCACHED_IO_H + +#if defined(BUILDING_LIBMEMCACHED) + +#include "libmemcached/memcached.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, - char *buffer, size_t length, char with_flush); + const void *buffer, size_t length, char with_flush); void memcached_io_reset(memcached_server_st *ptr); -ssize_t memcached_io_read(memcached_server_st *ptr, - char *buffer, size_t length); +memcached_return memcached_io_read(memcached_server_st *ptr, + void *buffer, size_t length, ssize_t *nread); +/* Read a line (terminated by '\n') into the buffer */ +memcached_return memcached_io_readline(memcached_server_st *ptr, + char *buffer_ptr, + size_t size); memcached_return memcached_io_close(memcached_server_st *ptr); +/* Read n bytes of data from the server and store them in dta */ +memcached_return memcached_safe_read(memcached_server_st *ptr, + void *dta, + size_t size); +/* Read a single response from the server */ +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 /* BUILDING_LIBMEMCACHED */ +#endif /* LIBMEMCACHED_MEMCACHED_IO_H */