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Sweden-Number/tools/widl/server.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>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#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 "windef.h"
#include "widl.h"
#include "typelib.h"
#include "typelib_struct.h"
#include "typegen.h"
#define END_OF_LIST(list) \
do { \
if (list) { \
while (NEXT_LINK(list)) \
list = NEXT_LINK(list); \
} \
} while(0)
static FILE* server;
static int indent = 0;
static int print_server(const char *format, ...)
{
va_list va;
int i, r;
va_start(va, format);
for (i = 0; i < indent; i++)
fprintf(server, " ");
r = vfprintf(server, format, va);
va_end(va);
return r;
}
static void write_parameters_init(const func_t *func)
{
const var_t *var;
if (!func->args)
return;
var = func->args;
while (NEXT_LINK(var)) var = NEXT_LINK(var);
while (var)
{
if (var->type->type != RPC_FC_BIND_PRIMITIVE)
print_server("%s = 0;\n", var->name);
var = PREV_LINK(var);
}
fprintf(server, "\n");
}
static void declare_args(const func_t *func)
{
int in_attr, out_attr;
int i = 0;
var_t *var;
if (!func->args)
return;
var = func->args;
while (NEXT_LINK(var)) var = NEXT_LINK(var);
while (var)
{
const expr_t *size_is = get_attrp(var->attrs, ATTR_SIZEIS);
int has_size = size_is && (size_is->type != EXPR_VOID);
int is_string = is_attr(var->attrs, ATTR_STRING);
in_attr = is_attr(var->attrs, ATTR_IN);
out_attr = is_attr(var->attrs, ATTR_OUT);
if (!out_attr && !in_attr)
in_attr = 1;
if (!in_attr && !has_size && !is_string)
{
int indirection;
print_server("");
write_type(server, var->type, NULL, var->tname);
for (indirection = 0; indirection < var->ptr_level - 1; indirection++)
fprintf(server, "*");
fprintf(server, " _W%u;\n", i++);
}
print_server("");
write_type(server, var->type, var, var->tname);
fprintf(server, " ");
write_name(server, var);
write_array(server, var->array, 0);
fprintf(server, ";\n");
var = PREV_LINK(var);
}
}
static void assign_out_args(const func_t *func)
{
int in_attr, out_attr;
int i = 0, sep = 0;
var_t *var;
const expr_t *size_is;
int has_size;
if (!func->args)
return;
var = func->args;
while (NEXT_LINK(var)) var = NEXT_LINK(var);
while (var)
{
int is_string = is_attr(var->attrs, ATTR_STRING);
size_is = get_attrp(var->attrs, ATTR_SIZEIS);
has_size = size_is && (size_is->type != EXPR_VOID);
in_attr = is_attr(var->attrs, ATTR_IN);
out_attr = is_attr(var->attrs, ATTR_OUT);
if (!out_attr && !in_attr)
in_attr = 1;
if (!in_attr)
{
print_server("");
write_name(server, var);
if (has_size)
{
type_t *type = var->type;
while (type->type == 0 && type->ref)
type = type->ref;
fprintf(server, " = NdrAllocate(&_StubMsg, ");
write_expr(server, size_is, 1);
fprintf(server, " * %u);\n", get_type_memsize(type));
}
else if (!is_string)
{
fprintf(server, " = &_W%u;\n", i);
if (var->ptr_level > 1)
print_server("_W%u = 0;\n", i);
i++;
}
sep = 1;
}
var = PREV_LINK(var);
}
if (sep)
fprintf(server, "\n");
}
static void write_function_stubs(type_t *iface)
{
char *implicit_handle = get_attrp(iface->attrs, ATTR_IMPLICIT_HANDLE);
int explicit_handle = is_attr(iface->attrs, ATTR_EXPLICIT_HANDLE);
const func_t *func = iface->funcs;
const var_t *var;
const var_t* explicit_handle_var;
unsigned int proc_offset = 0;
unsigned int type_offset = 2;
while (NEXT_LINK(func)) func = NEXT_LINK(func);
while (func)
{
const var_t *def = func->def;
unsigned long buffer_size = 0;
unsigned int type_offset_func;
/* 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;
}
}
fprintf(server, "void __RPC_STUB\n");
fprintf(server, "%s_", iface->name);
write_name(server, def);
fprintf(server, "(\n");
indent++;
print_server("PRPC_MESSAGE _pRpcMessage)\n");
indent--;
/* write the functions body */
fprintf(server, "{\n");
indent++;
/* declare return value '_RetVal' */
if (!is_void(def->type, NULL))
{
print_server("");
write_type(server, def->type, def, def->tname);
fprintf(server, " _RetVal;\n");
}
/* Declare arguments */
declare_args(func);
print_server("MIDL_STUB_MESSAGE _StubMsg;\n");
print_server("RPC_STATUS _Status;\n");
fprintf(server, "\n");
print_server("((void)(_Status));\n");
print_server("NdrServerInitializeNew(\n");
indent++;
print_server("_pRpcMessage,\n");
print_server("&_StubMsg,\n");
print_server("&%s_StubDesc);\n", iface->name);
indent--;
fprintf(server, "\n");
write_parameters_init(func);
if (explicit_handle_var)
{
print_server("%s = _pRpcMessage->Handle;\n", explicit_handle_var->name);
fprintf(server, "\n");
}
print_server("RpcTryFinally\n");
print_server("{\n");
indent++;
print_server("RpcTryExcept\n");
print_server("{\n");
indent++;
if (func->args)
{
print_server("if ((_pRpcMessage->DataRepresentation & 0x0000FFFFUL) != NDR_LOCAL_DATA_REPRESENTATION)\n");
indent++;
print_server("NdrConvert(\n");
indent++;
print_server("(PMIDL_STUB_MESSAGE)&_StubMsg,\n");
print_server("(PFORMAT_STRING)&__MIDL_ProcFormatString.Format[%u]);\n", proc_offset);
indent -= 2;
fprintf(server, "\n");
/* make a copy so we don't increment the type offset twice */
type_offset_func = type_offset;
/* unmarshall arguments */
write_remoting_arguments(server, indent, func, &type_offset_func, PASS_IN, PHASE_UNMARSHAL);
}
print_server("if (_StubMsg.Buffer > _StubMsg.BufferEnd)\n");
print_server("{\n");
indent++;
print_server("RpcRaiseException(RPC_X_BAD_STUB_DATA);\n");
indent--;
print_server("}\n");
indent--;
print_server("}\n");
print_server("RpcExcept(RPC_BAD_STUB_DATA_EXCEPTION_FILTER)\n");
print_server("{\n");
indent++;
print_server("RpcRaiseException(RPC_X_BAD_STUB_DATA);\n");
indent--;
print_server("}\n");
print_server("RpcEndExcept\n");
fprintf(server, "\n");
/* Assign 'out' arguments */
assign_out_args(func);
/* Call the real server function */
if (!is_void(def->type, NULL))
print_server("_RetVal = ");
else
print_server("");
write_name(server, def);
if (func->args)
{
int first_arg = 1;
fprintf(server, "(\n");
indent++;
var = func->args;
while (NEXT_LINK(var)) var = NEXT_LINK(var);
while (var)
{
if (first_arg)
first_arg = 0;
else
fprintf(server, ",\n");
print_server("");
write_name(server, var);
var = PREV_LINK(var);
}
fprintf(server, ");\n");
indent--;
}
else
{
fprintf(server, "();\n");
}
if (func->args)
{
const var_t *var = func->args;
while (NEXT_LINK(var)) var = NEXT_LINK(var);
while (var)
{
if (is_attr(var->attrs, ATTR_OUT))
{
unsigned int alignment;
buffer_size += get_required_buffer_size(var, &alignment, PASS_OUT);
buffer_size += alignment;
}
var = PREV_LINK(var);
}
}
if (!is_void(def->type, NULL))
{
unsigned int alignment;
buffer_size += get_required_buffer_size(def, &alignment, PASS_RETURN);
buffer_size += alignment;
}
if (has_out_arg_or_return(func))
{
fprintf(server, "\n");
print_server("_StubMsg.BufferLength = %u;\n", buffer_size);
type_offset_func = type_offset;
write_remoting_arguments(server, indent, func, &type_offset_func, PASS_OUT, PHASE_BUFFERSIZE);
print_server("_pRpcMessage->BufferLength = _StubMsg.BufferLength;\n");
fprintf(server, "\n");
print_server("_Status = I_RpcGetBuffer(_pRpcMessage);\n");
print_server("if (_Status)\n");
indent++;
print_server("RpcRaiseException(_Status);\n");
indent--;
fprintf(server, "\n");
print_server("_StubMsg.Buffer = (unsigned char *)_pRpcMessage->Buffer;\n");
fprintf(server, "\n");
}
type_offset_func = type_offset;
/* marshall arguments */
write_remoting_arguments(server, indent, func, &type_offset, PASS_OUT, PHASE_MARSHAL);
/* marshall the return value */
if (!is_void(def->type, NULL))
print_phase_basetype(server, indent, PHASE_MARSHAL, PASS_RETURN, def, "_RetVal");
indent--;
print_server("}\n");
print_server("RpcFinally\n");
print_server("{\n");
indent++;
write_remoting_arguments(server, indent, func, &type_offset_func, PASS_OUT, PHASE_FREE);
indent--;
print_server("}\n");
print_server("RpcEndFinally\n");
/* calculate buffer length */
fprintf(server, "\n");
print_server("_pRpcMessage->BufferLength =\n");
indent++;
print_server("(unsigned int)(_StubMsg.Buffer - (unsigned char *)_pRpcMessage->Buffer);\n");
indent--;
indent--;
fprintf(server, "}\n");
fprintf(server, "\n");
/* update proc_offset */
if (func->args)
{
var = func->args;
while (NEXT_LINK(var)) var = NEXT_LINK(var);
while (var)
{
proc_offset += get_size_procformatstring_var(var);
var = PREV_LINK(var);
}
}
if (!is_void(def->type, NULL))
proc_offset += get_size_procformatstring_var(def);
else
proc_offset += 2; /* FC_END and FC_PAD */
func = PREV_LINK(func);
}
}
static void write_dispatchtable(type_t *iface)
{
unsigned long ver = get_attrv(iface->attrs, ATTR_VERSION);
unsigned long method_count = 0;
func_t *func = iface->funcs;
print_server("static RPC_DISPATCH_FUNCTION %s_table[] =\n", iface->name);
print_server("{\n");
indent++;
while (NEXT_LINK(func)) func = NEXT_LINK(func);
while (func)
{
var_t *def = func->def;
print_server("%s_", iface->name);
write_name(server, def);
fprintf(server, ",\n");
method_count++;
func = PREV_LINK(func);
}
print_server("0\n");
indent--;
print_server("};\n");
print_server("RPC_DISPATCH_TABLE %s_v%d_%d_DispatchTable =\n", iface->name, LOWORD(ver), HIWORD(ver));
print_server("{\n");
indent++;
print_server("%u,\n", method_count);
print_server("%s_table\n", iface->name);
indent--;
print_server("};\n");
fprintf(server, "\n");
}
static void write_stubdescdecl(type_t *iface)
{
print_server("static const MIDL_STUB_DESC %s_StubDesc;\n", iface->name);
fprintf(server, "\n");
}
static void write_stubdescriptor(type_t *iface, int expr_eval_routines)
{
print_server("static const MIDL_STUB_DESC %s_StubDesc =\n", iface->name);
print_server("{\n");
indent++;
print_server("(void *)& %s___RpcServerInterface,\n", iface->name);
print_server("MIDL_user_allocate,\n");
print_server("MIDL_user_free,\n");
print_server("{\n");
indent++;
print_server("0,\n");
indent--;
print_server("},\n");
print_server("0,\n");
print_server("0,\n");
if (expr_eval_routines)
print_server("ExprEvalRoutines,\n");
else
print_server("0,\n");
print_server("0,\n");
print_server("__MIDL_TypeFormatString.Format,\n");
print_server("1, /* -error bounds_check flag */\n");
print_server("0x10001, /* Ndr library version */\n");
print_server("0,\n");
print_server("0x50100a4, /* MIDL Version 5.1.164 */\n");
print_server("0,\n");
print_server("0,\n");
print_server("0, /* notify & notify_flag routine table */\n");
print_server("1, /* Flags */\n");
print_server("0, /* Reserved3 */\n");
print_server("0, /* Reserved4 */\n");
print_server("0 /* Reserved5 */\n");
indent--;
print_server("};\n");
fprintf(server, "\n");
}
static void write_serverinterfacedecl(type_t *iface)
{
unsigned long ver = get_attrv(iface->attrs, ATTR_VERSION);
UUID *uuid = get_attrp(iface->attrs, ATTR_UUID);
print_server("extern RPC_DISPATCH_TABLE %s_v%d_%d_DispatchTable;\n", iface->name, LOWORD(ver), HIWORD(ver));
fprintf(server, "\n");
print_server("static const RPC_SERVER_INTERFACE %s___RpcServerInterface =\n", iface->name );
print_server("{\n");
indent++;
print_server("sizeof(RPC_SERVER_INTERFACE),\n");
print_server("{{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], LOWORD(ver), HIWORD(ver));
print_server("{{0x8a885d04,0x1ceb,0x11c9,{0x9f,0xe8,0x08,0x00,0x2b,0x10,0x48,0x60}},{2,0}},\n"); /* FIXME */
print_server("&%s_v%d_%d_DispatchTable,\n", iface->name, LOWORD(ver), HIWORD(ver));
print_server("0,\n");
print_server("0,\n");
print_server("0,\n");
print_server("0,\n");
print_server("0,\n");
indent--;
print_server("};\n");
if (old_names)
print_server("RPC_IF_HANDLE %s_ServerIfHandle = (RPC_IF_HANDLE)& %s___RpcServerInterface;\n",
iface->name, iface->name);
else
print_server("RPC_IF_HANDLE %s_v%d_%d_s_ifspec = (RPC_IF_HANDLE)& %s___RpcServerInterface;\n",
iface->name, LOWORD(ver), HIWORD(ver), iface->name);
fprintf(server, "\n");
}
static void write_formatdesc( const char *str )
{
print_server("typedef struct _MIDL_%s_FORMAT_STRING\n", str );
print_server("{\n");
indent++;
print_server("short Pad;\n");
print_server("unsigned char Format[%s_FORMAT_STRING_SIZE];\n", str);
indent--;
print_server("} MIDL_%s_FORMAT_STRING;\n", str);
print_server("\n");
}
static void write_formatstringsdecl(type_t *iface)
{
print_server("#define TYPE_FORMAT_STRING_SIZE %d\n",
get_size_typeformatstring(iface));
print_server("#define PROC_FORMAT_STRING_SIZE %d\n",
get_size_procformatstring(iface));
fprintf(server, "\n");
write_formatdesc("TYPE");
write_formatdesc("PROC");
fprintf(server, "\n");
print_server("static const MIDL_TYPE_FORMAT_STRING __MIDL_TypeFormatString;\n");
print_server("static const MIDL_PROC_FORMAT_STRING __MIDL_ProcFormatString;\n");
print_server("\n");
}
static void init_server(void)
{
if (server)
return;
if (!(server = fopen(server_name, "w")))
error("Could not open %s for output\n", server_name);
print_server("/*** Autogenerated by WIDL %s from %s - Do not edit ***/\n", WIDL_FULLVERSION, input_name);
print_server("#include <string.h>\n");
fprintf(server, "\n");
print_server("#include \"%s\"\n", header_name);
fprintf(server, "\n");
}
void write_server(ifref_t *ifaces)
{
ifref_t *iface = ifaces;
if (!do_server)
return;
if (!ifaces)
return;
END_OF_LIST(iface);
init_server();
if (!server)
return;
for (; iface; iface = PREV_LINK(iface))
{
if (is_object(iface->iface->attrs) || is_local(iface->iface->attrs))
continue;
fprintf(server, "/*****************************************************************************\n");
fprintf(server, " * %s interface\n", iface->iface->name);
fprintf(server, " */\n");
fprintf(server, "\n");
if (iface->iface->funcs)
{
int expr_eval_routines;
write_formatstringsdecl(iface->iface);
write_serverinterfacedecl(iface->iface);
write_stubdescdecl(iface->iface);
write_function_stubs(iface->iface);
print_server("#if !defined(__RPC_WIN32__)\n");
print_server("#error Invalid build platform for this stub.\n");
print_server("#endif\n");
fprintf(server, "\n");
write_procformatstring(server, iface->iface);
write_typeformatstring(server, iface->iface);
fprintf(server, "\n");
expr_eval_routines = write_expr_eval_routines(server, iface->iface->name);
if (expr_eval_routines)
write_expr_eval_routine_list(server, iface->iface->name);
write_stubdescriptor(iface->iface, expr_eval_routines);
write_dispatchtable(iface->iface);
}
}
fclose(server);
}
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