int NaClDescImcShmInternalize(struct NaClDesc **out_desc,
struct NaClDescXferState *xfer,
struct NaClDescQuotaInterface *quota_interface) {
int rv;
struct NaClDescImcShm *ndisp;
NaClHandle h;
nacl_off64_t hsize;
UNREFERENCED_PARAMETER(quota_interface);
rv = -NACL_ABI_EIO;
ndisp = malloc(sizeof *ndisp);
if (NULL == ndisp) {
rv = -NACL_ABI_ENOMEM;
goto cleanup;
}
if (!NaClDescInternalizeCtor((struct NaClDesc *) ndisp, xfer)) {
free(ndisp);
ndisp = NULL;
rv = -NACL_ABI_ENOMEM;
goto cleanup;
}
if (xfer->next_handle == xfer->handle_buffer_end) {
rv = -NACL_ABI_EIO;
goto cleanup;
}
if (xfer->next_byte + sizeof ndisp->size > xfer->byte_buffer_end) {
rv = -NACL_ABI_EIO;
goto cleanup;
}
h = *xfer->next_handle;
*xfer->next_handle++ = NACL_INVALID_HANDLE;
memcpy(&hsize, xfer->next_byte, sizeof hsize);
xfer->next_byte += sizeof hsize;
if (!NaClDescImcShmSubclassCtor(ndisp, h, hsize)) {
rv = -NACL_ABI_EIO;
goto cleanup;
}
*out_desc = (struct NaClDesc *) ndisp;
rv = 0;
cleanup:
if (rv < 0) {
NaClDescSafeUnref((struct NaClDesc *) ndisp);
}
return rv;
}
int NaClDescImcShmCtor(struct NaClDescImcShm *self,
NaClHandle h,
nacl_off64_t size) {
struct NaClDesc *basep = (struct NaClDesc *) self;
int rv;
basep->base.vtbl = (struct NaClRefCountVtbl const *) NULL;
if (!NaClDescCtor(basep)) {
return 0;
}
rv = NaClDescImcShmSubclassCtor(self, h, size);
if (!rv) {
/* NaClDescImcShm construction failed, still a NaClDesc object */
(*NACL_VTBL(NaClRefCount, basep)->Dtor)((struct NaClRefCount *) basep);
}
(*NACL_VTBL(NaClDesc, basep)->SetFlags)(basep, NACL_ABI_O_RDWR);
return 1;
}
