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Neither the name of Novell Inc. nor the names of its contributors 60 * may be used to endorse or promote products derived from this 61 * this software without specific prior written permission. 62 * 63 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 64 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 65 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 66 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY 67 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 68 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 69 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 70 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 71 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 72 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 73 * 74 * @APPLE_LICENSE_HEADER_END@ 75 */ 76 77/* 78** 79** NAME: 80** 81** marbfman.c 82** 83** FACILITY: 84** 85** IDL Stub Runtime Support 86** 87** ABSTRACT: 88** 89** Buffer management when marshalling a node 90** 91** VERSION: DCE 1.0 92** 93*/ 94#if HAVE_CONFIG_H 95#include <config.h> 96#endif 97 98/* The ordering of the following 3 includes should NOT be changed! */ 99#include <dce/rpc.h> 100#include <dce/stubbase.h> 101#include <lsysdep.h> 102 103#ifdef PERFMON 104#include <dce/idl_log.h> 105#endif 106 107void rpc_ss_marsh_change_buff 108( 109 rpc_ss_marsh_state_t *msp, /* Pointer to marshalling state block */ 110 unsigned long size_next_structure 111 /* Size of next structure to be marshalled */ 112) 113{ 114 ndr_byte *wp_buff; 115 unsigned long req_buff_size; 116 int preserved_offset; /* Must start marshalling in new buffer at 117 same offset (mod 8) we were at in old buffer */ 118 119#ifdef PERFMON 120 RPC_SS_MARSH_CHANGE_BUFF_N; 121#endif 122 123 preserved_offset = ((intptr_t)msp->mp) % 8; 124 /* If a current iovector and buffer exist */ 125 if (msp->p_iovec->elt[0].buff_addr != NULL) 126 { 127 /* Despatch buffer to the comm layer */ 128 msp->p_iovec->elt[0].data_len = msp->p_iovec->elt[0].buff_len 129 - (msp->p_iovec->elt[0].data_addr - msp->p_iovec->elt[0].buff_addr) 130 - msp->space_in_buff; 131 rpc_call_transmit ( msp->call_h, msp->p_iovec, msp->p_st ); 132 133#ifdef NO_EXCEPTIONS 134 if (*msp->p_st != error_status_ok) return; 135#else 136 /* If cancelled, raise the cancelled exception */ 137 if (*msp->p_st==rpc_s_call_cancelled) DCETHREAD_RAISE(RPC_SS_THREADS_X_CANCELLED); 138 139 /* 140 * Otherwise, raise the pipe comm error which causes the stub to 141 * report the value of the status variable. 142 */ 143 if (*msp->p_st != error_status_ok) DCETHREAD_RAISE(rpc_x_ss_pipe_comm_error); 144#endif 145 } 146 /* Get a new buffer */ 147 req_buff_size = size_next_structure + 18; 148 /* 18 = 7 bytes worst case alignment before data, then we expect another 149 node to follow, so 150 3 bytes worst case alignment 151 4 bytes offset 152 4 bytes node number */ 153 if (req_buff_size < NIDL_BUFF_SIZE) req_buff_size = NIDL_BUFF_SIZE; 154 req_buff_size += 7; /* malloc may not deliver 8-byte aligned memory */ 155 wp_buff = (ndr_byte *)malloc( req_buff_size ); 156 if (wp_buff == NULL) 157 { 158 DCETHREAD_RAISE( rpc_x_no_memory ); 159 return; 160 } 161 /* Fill in fields of the iovector */ 162 msp->p_iovec->num_elt = 1; 163 msp->p_iovec->elt[0].buff_dealloc = (rpc_ss_dealloc_t)free; 164 msp->p_iovec->elt[0].flags = 0; 165 msp->p_iovec->elt[0].buff_addr = wp_buff; 166 msp->p_iovec->elt[0].buff_len = req_buff_size; 167 /* malloc may not deliver 8-byte aligned memory */ 168 wp_buff = (byte_p_t)(((wp_buff - (byte_p_t)0) + 7) & ~7); 169 msp->p_iovec->elt[0].data_addr = wp_buff + preserved_offset; 170 /* Output parameters */ 171 msp->mp = (rpc_mp_t)msp->p_iovec->elt[0].data_addr; 172 msp->space_in_buff = req_buff_size - 173 (msp->p_iovec->elt[0].data_addr - msp->p_iovec->elt[0].buff_addr); 174 175#ifdef PERFMON 176 RPC_SS_MARSH_CHANGE_BUFF_X; 177#endif 178 179} 180