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Neither Open Software * Foundation, Inc., Hewlett-Packard Company nor Digital * Equipment Corporation makes any representations about the suitability * of this software for any purpose. * * Copyright (c) 2007, Novell, Inc. All rights reserved. * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of Novell Inc. nor the names of its contributors * may be used to endorse or promote products derived from this * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * @APPLE_LICENSE_HEADER_END@ */ /* ** ** NAME: ** ** marbfman.c ** ** FACILITY: ** ** IDL Stub Runtime Support ** ** ABSTRACT: ** ** Buffer management when marshalling a node ** ** VERSION: DCE 1.0 ** */ #if HAVE_CONFIG_H #include <config.h> #endif /* The ordering of the following 3 includes should NOT be changed! */ #include <dce/rpc.h> #include <dce/stubbase.h> #include <lsysdep.h> #ifdef PERFMON #include <dce/idl_log.h> #endif void rpc_ss_marsh_change_buff ( rpc_ss_marsh_state_t *msp, /* Pointer to marshalling state block */ unsigned long size_next_structure /* Size of next structure to be marshalled */ ) { ndr_byte *wp_buff; unsigned long req_buff_size; int preserved_offset; /* Must start marshalling in new buffer at same offset (mod 8) we were at in old buffer */ #ifdef PERFMON RPC_SS_MARSH_CHANGE_BUFF_N; #endif preserved_offset = ((intptr_t)msp->mp) % 8; /* If a current iovector and buffer exist */ if (msp->p_iovec->elt[0].buff_addr != NULL) { /* Despatch buffer to the comm layer */ msp->p_iovec->elt[0].data_len = msp->p_iovec->elt[0].buff_len - (msp->p_iovec->elt[0].data_addr - msp->p_iovec->elt[0].buff_addr) - msp->space_in_buff; rpc_call_transmit ( msp->call_h, msp->p_iovec, msp->p_st ); #ifdef NO_EXCEPTIONS if (*msp->p_st != error_status_ok) return; #else /* If cancelled, raise the cancelled exception */ if (*msp->p_st==rpc_s_call_cancelled) DCETHREAD_RAISE(RPC_SS_THREADS_X_CANCELLED); /* * Otherwise, raise the pipe comm error which causes the stub to * report the value of the status variable. */ if (*msp->p_st != error_status_ok) DCETHREAD_RAISE(rpc_x_ss_pipe_comm_error); #endif } /* Get a new buffer */ req_buff_size = size_next_structure + 18; /* 18 = 7 bytes worst case alignment before data, then we expect another node to follow, so 3 bytes worst case alignment 4 bytes offset 4 bytes node number */ if (req_buff_size < NIDL_BUFF_SIZE) req_buff_size = NIDL_BUFF_SIZE; req_buff_size += 7; /* malloc may not deliver 8-byte aligned memory */ wp_buff = (ndr_byte *)malloc( req_buff_size ); if (wp_buff == NULL) { DCETHREAD_RAISE( rpc_x_no_memory ); return; } /* Fill in fields of the iovector */ msp->p_iovec->num_elt = 1; msp->p_iovec->elt[0].buff_dealloc = (rpc_ss_dealloc_t)free; msp->p_iovec->elt[0].flags = 0; msp->p_iovec->elt[0].buff_addr = wp_buff; msp->p_iovec->elt[0].buff_len = req_buff_size; /* malloc may not deliver 8-byte aligned memory */ wp_buff = (byte_p_t)(((wp_buff - (byte_p_t)0) + 7) & ~7); msp->p_iovec->elt[0].data_addr = wp_buff + preserved_offset; /* Output parameters */ msp->mp = (rpc_mp_t)msp->p_iovec->elt[0].data_addr; msp->space_in_buff = req_buff_size - (msp->p_iovec->elt[0].data_addr - msp->p_iovec->elt[0].buff_addr); #ifdef PERFMON RPC_SS_MARSH_CHANGE_BUFF_X; #endif }