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Sweden-Number/tools/widl/client.c

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C
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/*
* IDL Compiler
*
* Copyright 2005-2006 Eric Kohl
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <assert.h>
#include <ctype.h>
#include <signal.h>
#include "widl.h"
#include "utils.h"
#include "parser.h"
#include "header.h"
#include "widltypes.h"
#include "typegen.h"
static FILE* client;
static int indent = 0;
static void print_client( const char *format, ... )
{
va_list va;
va_start(va, format);
print(client, indent, format, va);
va_end(va);
}
static void check_pointers(const func_t *func)
{
const var_t *var;
if (!func->args)
return;
LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
{
if (is_var_ptr(var) && cant_be_null(var))
{
print_client("if (!%s)\n", var->name);
print_client("{\n");
indent++;
print_client("RpcRaiseException(RPC_X_NULL_REF_POINTER);\n");
indent--;
print_client("}\n\n");
}
}
}
static void write_function_stubs(type_t *iface, unsigned int *proc_offset)
{
const func_t *func;
const char *implicit_handle = get_attrp(iface->attrs, ATTR_IMPLICIT_HANDLE);
int explicit_handle = is_attr(iface->attrs, ATTR_EXPLICIT_HANDLE);
const var_t *var;
int method_count = 0;
if (!implicit_handle)
print_client("static RPC_BINDING_HANDLE %s__MIDL_AutoBindHandle;\n\n", iface->name);
if (iface->funcs) LIST_FOR_EACH_ENTRY( func, iface->funcs, const func_t, entry )
{
const var_t *def = func->def;
const var_t* explicit_handle_var;
/* check for a defined binding handle */
explicit_handle_var = get_explicit_handle_var(func);
if (explicit_handle)
{
if (!explicit_handle_var)
{
error("%s() does not define an explicit binding handle!\n", def->name);
return;
}
}
else if (implicit_handle)
{
if (explicit_handle_var)
{
error("%s() must not define a binding handle!\n", def->name);
return;
}
}
write_type_decl_left(client, def->type);
if (needs_space_after(def->type))
fprintf(client, " ");
write_prefix_name(client, prefix_client, def);
fprintf(client, "(\n");
indent++;
if (func->args)
write_args(client, func->args, iface->name, 0, TRUE);
else
print_client("void");
fprintf(client, ")\n");
indent--;
/* write the functions body */
fprintf(client, "{\n");
indent++;
/* declare return value '_RetVal' */
if (!is_void(def->type))
{
print_client("");
write_type_decl_left(client, def->type);
fprintf(client, " _RetVal;\n");
}
if (implicit_handle || explicit_handle_var)
print_client("RPC_BINDING_HANDLE _Handle = 0;\n");
print_client("RPC_MESSAGE _RpcMessage;\n");
print_client("MIDL_STUB_MESSAGE _StubMsg;\n");
if (!is_void(def->type) && decl_indirect(def->type))
{
print_client("void *_p_%s = &%s;\n",
"_RetVal", "_RetVal");
}
fprintf(client, "\n");
/* check pointers */
check_pointers(func);
print_client("RpcTryFinally\n");
print_client("{\n");
indent++;
print_client("NdrClientInitializeNew(\n");
indent++;
print_client("(PRPC_MESSAGE)&_RpcMessage,\n");
print_client("(PMIDL_STUB_MESSAGE)&_StubMsg,\n");
print_client("(PMIDL_STUB_DESC)&%s_StubDesc,\n", iface->name);
print_client("%d);\n", method_count);
indent--;
fprintf(client, "\n");
if (implicit_handle)
{
print_client("_Handle = %s;\n", implicit_handle);
fprintf(client, "\n");
}
else if (explicit_handle_var)
{
print_client("_Handle = %s;\n", explicit_handle_var->name);
fprintf(client, "\n");
}
write_remoting_arguments(client, indent, func, PASS_IN, PHASE_BUFFERSIZE);
print_client("NdrGetBuffer(\n");
indent++;
print_client("(PMIDL_STUB_MESSAGE)&_StubMsg,\n");
print_client("_StubMsg.BufferLength,\n");
if (implicit_handle || explicit_handle_var)
print_client("_Handle);\n");
else
print_client("%s__MIDL_AutoBindHandle);\n", iface->name);
indent--;
fprintf(client, "\n");
/* marshal arguments */
write_remoting_arguments(client, indent, func, PASS_IN, PHASE_MARSHAL);
/* send/receive message */
/* print_client("NdrNsSendReceive(\n"); */
/* print_client("(unsigned char *)_StubMsg.Buffer,\n"); */
/* print_client("(RPC_BINDING_HANDLE *) &%s__MIDL_AutoBindHandle);\n", iface->name); */
print_client("NdrSendReceive(\n");
indent++;
print_client("(PMIDL_STUB_MESSAGE)&_StubMsg,\n");
print_client("(unsigned char *)_StubMsg.Buffer);\n\n");
indent--;
print_client("_StubMsg.BufferStart = (unsigned char *)_RpcMessage.Buffer;\n");
print_client("_StubMsg.BufferEnd = _StubMsg.BufferStart + _RpcMessage.BufferLength;\n");
if (has_out_arg_or_return(func))
{
fprintf(client, "\n");
print_client("if ((_RpcMessage.DataRepresentation & 0x0000FFFFUL) != NDR_LOCAL_DATA_REPRESENTATION)\n");
indent++;
print_client("NdrConvert(\n");
indent++;
print_client("(PMIDL_STUB_MESSAGE)&_StubMsg,\n");
print_client("(PFORMAT_STRING)&__MIDL_ProcFormatString.Format[%u]);\n", *proc_offset);
indent -= 2;
}
/* unmarshall arguments */
fprintf(client, "\n");
write_remoting_arguments(client, indent, func, PASS_OUT, PHASE_UNMARSHAL);
/* unmarshal return value */
if (!is_void(def->type))
{
if (decl_indirect(def->type))
print_client("MIDL_memset(&%s, 0, sizeof(%s));\n", "_RetVal", "_RetVal");
else if (is_ptr(def->type) || is_array(def->type))
print_client("%s = 0;\n", "_RetVal");
write_remoting_arguments(client, indent, func, PASS_RETURN, PHASE_UNMARSHAL);
}
/* update proc_offset */
if (func->args)
{
LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
*proc_offset += get_size_procformatstring_var(var);
}
if (!is_void(def->type))
*proc_offset += get_size_procformatstring_var(def);
else
*proc_offset += 2; /* FC_END and FC_PAD */
indent--;
print_client("}\n");
print_client("RpcFinally\n");
print_client("{\n");
indent++;
/* FIXME: emit client finally code */
print_client("NdrFreeBuffer((PMIDL_STUB_MESSAGE)&_StubMsg);\n");
indent--;
print_client("}\n");
print_client("RpcEndFinally\n");
/* emit return code */
if (!is_void(def->type))
{
fprintf(client, "\n");
print_client("return _RetVal;\n");
}
indent--;
fprintf(client, "}\n");
fprintf(client, "\n");
method_count++;
}
}
static void write_stubdescdecl(type_t *iface)
{
print_client("static const MIDL_STUB_DESC %s_StubDesc;\n", iface->name);
fprintf(client, "\n");
}
static void write_stubdescriptor(type_t *iface, int expr_eval_routines)
{
const char *implicit_handle = get_attrp(iface->attrs, ATTR_IMPLICIT_HANDLE);
print_client("static const MIDL_STUB_DESC %s_StubDesc =\n", iface->name);
print_client("{\n");
indent++;
print_client("(void *)& %s___RpcClientInterface,\n", iface->name);
print_client("MIDL_user_allocate,\n");
print_client("MIDL_user_free,\n");
print_client("{\n");
indent++;
if (implicit_handle)
print_client("&%s,\n", implicit_handle);
else
print_client("&%s__MIDL_AutoBindHandle,\n", iface->name);
indent--;
print_client("},\n");
print_client("0,\n");
print_client("0,\n");
if (expr_eval_routines)
print_client("ExprEvalRoutines,\n");
else
print_client("0,\n");
print_client("0,\n");
print_client("__MIDL_TypeFormatString.Format,\n");
print_client("1, /* -error bounds_check flag */\n");
print_client("0x10001, /* Ndr library version */\n");
print_client("0,\n");
print_client("0x50100a4, /* MIDL Version 5.1.164 */\n");
print_client("0,\n");
print_client("%s,\n", list_empty(&user_type_list) ? "0" : "UserMarshalRoutines");
print_client("0, /* notify & notify_flag routine table */\n");
print_client("1, /* Flags */\n");
print_client("0, /* Reserved3 */\n");
print_client("0, /* Reserved4 */\n");
print_client("0 /* Reserved5 */\n");
indent--;
print_client("};\n");
fprintf(client, "\n");
}
static void write_clientinterfacedecl(type_t *iface)
{
unsigned long ver = get_attrv(iface->attrs, ATTR_VERSION);
const UUID *uuid = get_attrp(iface->attrs, ATTR_UUID);
const str_list_t *endpoints = get_attrp(iface->attrs, ATTR_ENDPOINT);
if (endpoints) write_endpoints( client, iface->name, endpoints );
print_client("static const RPC_CLIENT_INTERFACE %s___RpcClientInterface =\n", iface->name );
print_client("{\n");
indent++;
print_client("sizeof(RPC_CLIENT_INTERFACE),\n");
print_client("{{0x%08lx,0x%04x,0x%04x,{0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x}},{%d,%d}},\n",
uuid->Data1, uuid->Data2, uuid->Data3, uuid->Data4[0], uuid->Data4[1],
uuid->Data4[2], uuid->Data4[3], uuid->Data4[4], uuid->Data4[5], uuid->Data4[6],
uuid->Data4[7], MAJORVERSION(ver), MINORVERSION(ver));
print_client("{{0x8a885d04,0x1ceb,0x11c9,{0x9f,0xe8,0x08,0x00,0x2b,0x10,0x48,0x60}},{2,0}},\n"); /* FIXME */
print_client("0,\n");
if (endpoints)
{
print_client("%u,\n", list_count(endpoints));
print_client("(PRPC_PROTSEQ_ENDPOINT)%s__RpcProtseqEndpoint,\n", iface->name);
}
else
{
print_client("0,\n");
print_client("0,\n");
}
print_client("0,\n");
print_client("0,\n");
print_client("0,\n");
indent--;
print_client("};\n");
if (old_names)
print_client("RPC_IF_HANDLE %s_ClientIfHandle = (RPC_IF_HANDLE)& %s___RpcClientInterface;\n",
iface->name, iface->name);
else
print_client("RPC_IF_HANDLE %s%s_v%d_%d_c_ifspec = (RPC_IF_HANDLE)& %s___RpcClientInterface;\n",
prefix_client, iface->name, MAJORVERSION(ver), MINORVERSION(ver), iface->name);
fprintf(client, "\n");
}
static void write_implicithandledecl(type_t *iface)
{
const char *implicit_handle = get_attrp(iface->attrs, ATTR_IMPLICIT_HANDLE);
if (implicit_handle)
{
fprintf(client, "handle_t %s;\n", implicit_handle);
fprintf(client, "\n");
}
}
static void init_client(void)
{
if (client) return;
if (!(client = fopen(client_name, "w")))
error("Could not open %s for output\n", client_name);
print_client("/*** Autogenerated by WIDL %s from %s - Do not edit ***/\n", PACKAGE_VERSION, input_name);
print_client("#include <string.h>\n");
print_client("#ifdef _ALPHA_\n");
print_client("#include <stdarg.h>\n");
print_client("#endif\n");
fprintf(client, "\n");
print_client("#include \"%s\"\n", header_name);
fprintf(client, "\n");
}
void write_client(ifref_list_t *ifaces)
{
unsigned int proc_offset = 0;
int expr_eval_routines;
ifref_t *iface;
if (!do_client)
return;
if (do_everything && !need_stub_files(ifaces))
return;
init_client();
if (!client)
return;
write_formatstringsdecl(client, indent, ifaces, need_stub);
expr_eval_routines = write_expr_eval_routines(client, client_token);
if (expr_eval_routines)
write_expr_eval_routine_list(client, client_token);
write_user_quad_list(client);
if (ifaces) LIST_FOR_EACH_ENTRY( iface, ifaces, ifref_t, entry )
{
if (!need_stub(iface->iface))
continue;
fprintf(client, "/*****************************************************************************\n");
fprintf(client, " * %s interface\n", iface->iface->name);
fprintf(client, " */\n");
fprintf(client, "\n");
if (iface->iface->funcs)
{
write_implicithandledecl(iface->iface);
write_clientinterfacedecl(iface->iface);
write_stubdescdecl(iface->iface);
write_function_stubs(iface->iface, &proc_offset);
print_client("#if !defined(__RPC_WIN32__)\n");
print_client("#error Invalid build platform for this stub.\n");
print_client("#endif\n");
fprintf(client, "\n");
write_stubdescriptor(iface->iface, expr_eval_routines);
}
}
fprintf(client, "\n");
write_procformatstring(client, ifaces, need_stub);
write_typeformatstring(client, ifaces, need_stub);
fclose(client);
}
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