X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=libmemcached%2Fmemcached_quit.c;h=8ac76d48aeb97b8d2323fd24526f58223108d701;hb=a7a011c2ea4a63368b3a96a332da00820ed402cb;hp=a3d114b3e1984a9d23c5f768e425e8f061583627;hpb=933e5a561b10c1450563f1421b83d72396b805d2;p=m6w6%2Flibmemcached diff --git a/libmemcached/memcached_quit.c b/libmemcached/memcached_quit.c index a3d114b3..8ac76d48 100644 --- a/libmemcached/memcached_quit.c +++ b/libmemcached/memcached_quit.c @@ -2,10 +2,10 @@ /* This closes all connections (forces flush of input as well). - - Maybe add a host specific, or key specific version? - - The reason we send "quit" is that in case we have buffered IO, this + + Maybe add a host specific, or key specific version? + + The reason we send "quit" is that in case we have buffered IO, this will force data to be completed. */ @@ -13,48 +13,59 @@ void memcached_quit_server(memcached_server_st *ptr, uint8_t io_death) { if (ptr->fd != -1) { - if (io_death == 0) + if (io_death == 0 && ptr->type != MEMCACHED_CONNECTION_UDP) { memcached_return rc; - ssize_t read_length; char buffer[MEMCACHED_MAX_BUFFER]; - if (ptr->root->flags & MEM_BINARY_PROTOCOL) + if (ptr->root->flags & MEM_BINARY_PROTOCOL) { - protocol_binary_request_quit request = {0}; + protocol_binary_request_quit request = {.bytes= {0}}; request.message.header.request.magic = PROTOCOL_BINARY_REQ; request.message.header.request.opcode = PROTOCOL_BINARY_CMD_QUIT; request.message.header.request.datatype = PROTOCOL_BINARY_RAW_BYTES; rc= memcached_do(ptr, request.bytes, sizeof(request.bytes), 1); - } else + } + else rc= memcached_do(ptr, "quit\r\n", 6, 1); WATCHPOINT_ASSERT(rc == MEMCACHED_SUCCESS || rc == MEMCACHED_FETCH_NOTFINISHED); - + /* read until socket is closed, or there is an error * closing the socket before all data is read * results in server throwing away all data which is * not read */ - while ((read_length= - memcached_io_read(ptr, buffer, sizeof(buffer)/sizeof(*buffer))) - > 0); + ssize_t nread; + while (memcached_io_read(ptr, buffer, sizeof(buffer)/sizeof(*buffer), + &nread) == MEMCACHED_SUCCESS); + + /* + * memcached_io_read may call memcached_quit_server with io_death if + * it encounters problems, but we don't care about those occurences. + * The intention of that loop is to drain the data sent from the + * server to ensure that the server processed all of the data we + * sent to the server. + */ + ptr->server_failure_counter= 0; } - memcached_io_close(ptr, io_death); + memcached_io_close(ptr); ptr->fd= -1; - ptr->write_buffer_offset= 0; + ptr->write_buffer_offset= (size_t) ((ptr->type == MEMCACHED_CONNECTION_UDP) ? UDP_DATAGRAM_HEADER_LENGTH : 0); ptr->read_buffer_length= 0; ptr->read_ptr= ptr->read_buffer; memcached_server_response_reset(ptr); } + + if(io_death) ptr->server_failure_counter++; } void memcached_quit(memcached_st *ptr) { unsigned int x; - if (ptr->hosts == NULL || + if (ptr->hosts == NULL || ptr->number_of_hosts == 0) return;