memcached_return_t memcached_vdo(memcached_server_write_instance_st ptr, const struct libmemcached_io_vector_st *vector, size_t count, bool with_flush) { memcached_return_t rc; ssize_t sent_length; size_t command_length= 0; uint32_t x; WATCHPOINT_ASSERT(count); WATCHPOINT_ASSERT(vector); if ((rc= memcached_connect(ptr)) != MEMCACHED_SUCCESS) { WATCHPOINT_ERROR(rc); return rc; } /* ** Since non buffering ops in UDP mode dont check to make sure they will fit ** before they start writing, if there is any data in buffer, clear it out, ** otherwise we might get a partial write. **/ if (ptr->type == MEMCACHED_CONNECTION_UDP && with_flush && ptr->write_buffer_offset > UDP_DATAGRAM_HEADER_LENGTH) { memcached_io_write(ptr, NULL, 0, true); } sent_length= memcached_io_writev(ptr, vector, count, with_flush); for (x= 0; x < count; ++x, vector++) { command_length+= vector->length; } if (sent_length == -1 || (size_t)sent_length != command_length) { rc= MEMCACHED_WRITE_FAILURE; WATCHPOINT_ERROR(rc); WATCHPOINT_ERRNO(errno); } else if ((ptr->root->flags.no_reply) == 0) { memcached_server_response_increment(ptr); } return rc; }
memcached_return memcached_vdo(memcached_server_st *ptr, const struct libmemcached_io_vector_st *vector, size_t count, uint8_t with_flush) { memcached_return rc; ssize_t sent_length; size_t command_length; uint32_t x; WATCHPOINT_ASSERT(count); WATCHPOINT_ASSERT(vector); if ((rc= memcached_connect(ptr)) != MEMCACHED_SUCCESS) { WATCHPOINT_ERROR(rc); return rc; } if (ptr->type == MEMCACHED_CONNECTION_UDP && with_flush && ptr->write_buffer_offset > UDP_DATAGRAM_HEADER_LENGTH) { memcached_io_write(ptr, NULL, 0, true); } sent_length= memcached_io_writev(ptr, vector, count, (char) with_flush); command_length = 0; for (x= 0; x < count; ++x, vector++) command_length+= vector->length; if (sent_length == -1 || (size_t)sent_length != command_length) { rc = MEMCACHED_WRITE_FAILURE; WATCHPOINT_ERROR(rc); } else if ((ptr->root->flags & MEM_NOREPLY) == 0) memcached_server_response_increment(ptr); return rc; }