2 * From: @(#)rpc_cout.c 1.13 89/02/22 (C) 1987 SMI
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following
12 * disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 * * Neither the name of Sun Microsystems, Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived
16 * from this software without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
22 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
23 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
25 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 * rpc_cout.c, XDR routine outputter for the RPC protocol compiler
38 #include "rpc_parse.h"
42 static void emit_enum (definition
* def
);
43 static void emit_program (const definition
* def
);
44 static void emit_union (const definition
* def
);
45 static void emit_struct (definition
* def
);
46 static void emit_typedef (const definition
* def
);
47 static void emit_inline (int indent
, declaration
* decl
, int flag
);
48 static void emit_single_in_line (int indent
, declaration
*decl
, int flag
,
50 static int findtype (const definition
* def
, const char *type
);
51 static int undefined (const char *type
);
52 static void print_generic_header (const char *procname
, int pointerp
);
53 static void print_ifopen (int indent
, const char *name
);
54 static void print_ifarg (const char *arg
);
55 static void print_ifsizeof (int indent
, const char *prefix
, const char *type
);
56 static void print_ifclose (int indent
);
57 static void print_ifstat (int indent
, const char *prefix
, const char *type
,
58 relation rel
, const char *amax
,
59 const char *objname
, const char *name
);
60 static void print_stat (int indent
, const declaration
* dec
);
61 static void print_header (const definition
* def
);
62 static void print_trailer (void);
63 static char *upcase (const char *str
);
66 * Emit the C-routine for the given definition
69 emit (definition
* def
)
71 if (def
->def_kind
== DEF_CONST
)
75 if (def
->def_kind
== DEF_PROGRAM
)
80 if (def
->def_kind
== DEF_TYPEDEF
)
82 /* now we need to handle declarations like
83 struct typedef foo foo;
84 since we don't want this to be expanded
85 into 2 calls to xdr_foo */
87 if (strcmp (def
->def
.ty
.old_type
, def
->def_name
) == 0)
92 switch (def
->def_kind
)
114 findtype (const definition
* def
, const char *type
)
116 if (def
->def_kind
== DEF_PROGRAM
|| def
->def_kind
== DEF_CONST
)
122 return (streq (def
->def_name
, type
));
127 undefined (const char *type
)
130 def
= (definition
*) FINDVAL (defined
, type
, findtype
);
131 return (def
== NULL
);
136 print_generic_header (const char *procname
, int pointerp
)
138 f_print (fout
, "\n");
139 f_print (fout
, "bool_t\n");
142 f_print (fout
, "xdr_%s (", procname
);
143 f_print (fout
, "XDR *xdrs, ");
144 f_print (fout
, "%s ", procname
);
147 f_print (fout
, "objp)\n{\n");
151 f_print (fout
, "xdr_%s (xdrs, objp)\n", procname
);
152 f_print (fout
, "\tXDR *xdrs;\n");
153 f_print (fout
, "\t%s ", procname
);
156 f_print (fout
, "objp;\n{\n");
161 print_header (const definition
* def
)
163 print_generic_header (def
->def_name
,
164 def
->def_kind
!= DEF_TYPEDEF
||
165 !isvectordef (def
->def
.ty
.old_type
,
168 /* Now add Inline support */
172 /*May cause lint to complain. but ... */
173 f_print (fout
, "\tregister int32_t *buf;\n\n");
177 print_prog_header (const proc_list
* plist
)
179 print_generic_header (plist
->args
.argname
, 1);
185 f_print (fout
, "\treturn TRUE;\n");
186 f_print (fout
, "}\n");
191 print_ifopen (int indent
, const char *name
)
193 tabify (fout
, indent
);
194 f_print (fout
, " if (!xdr_%s (xdrs", name
);
198 print_ifarg (const char *arg
)
200 f_print (fout
, ", %s", arg
);
204 print_ifsizeof (int indent
, const char *prefix
, const char *type
)
208 fprintf (fout
, ",\n");
209 tabify (fout
, indent
);
212 fprintf (fout
, ", ");
214 if (streq (type
, "bool"))
215 fprintf (fout
, "sizeof (bool_t), (xdrproc_t) xdr_bool");
218 fprintf (fout
, "sizeof (");
219 if (undefined (type
) && prefix
)
221 f_print (fout
, "%s ", prefix
);
223 fprintf (fout
, "%s), (xdrproc_t) xdr_%s", type
, type
);
228 print_ifclose (int indent
)
230 f_print (fout
, "))\n");
231 tabify (fout
, indent
);
232 f_print (fout
, "\t return FALSE;\n");
236 print_ifstat (int indent
, const char *prefix
, const char *type
, relation rel
,
237 const char *amax
, const char *objname
, const char *name
)
239 const char *alt
= NULL
;
244 print_ifopen (indent
, "pointer");
245 print_ifarg ("(char **)");
246 f_print (fout
, "%s", objname
);
247 print_ifsizeof (0, prefix
, type
);
250 if (streq (type
, "string"))
254 else if (streq (type
, "opaque"))
260 print_ifopen (indent
, alt
);
261 print_ifarg (objname
);
265 print_ifopen (indent
, "vector");
266 print_ifarg ("(char *)");
267 f_print (fout
, "%s", objname
);
272 print_ifsizeof (indent
+ 1, prefix
, type
);
276 if (streq (type
, "string"))
280 else if (streq (type
, "opaque"))
284 if (streq (type
, "string"))
286 print_ifopen (indent
, alt
);
287 print_ifarg (objname
);
293 print_ifopen (indent
, alt
);
297 print_ifopen (indent
, "array");
299 print_ifarg ("(char **)");
302 f_print (fout
, "%s.%s_val, (u_int *) %s.%s_len",
303 objname
, name
, objname
, name
);
307 f_print (fout
, "&%s->%s_val, (u_int *) &%s->%s_len",
308 objname
, name
, objname
, name
);
314 print_ifsizeof (indent
+ 1, prefix
, type
);
318 print_ifopen (indent
, type
);
319 print_ifarg (objname
);
322 print_ifclose (indent
);
326 emit_enum (definition
* def
)
330 print_ifopen (1, "enum");
331 print_ifarg ("(enum_t *) objp");
336 emit_program (const definition
* def
)
342 for (vlist
= def
->def
.pr
.versions
; vlist
!= NULL
; vlist
= vlist
->next
)
343 for (plist
= vlist
->procs
; plist
!= NULL
; plist
= plist
->next
)
345 if (!newstyle
|| plist
->arg_num
< 2)
346 continue; /* old style, or single argument */
347 print_prog_header (plist
);
348 for (dl
= plist
->args
.decls
; dl
!= NULL
;
350 print_stat (1, &dl
->decl
);
356 emit_union (const definition
* def
)
362 const char *vecformat
= "objp->%s_u.%s";
363 const char *format
= "&objp->%s_u.%s";
365 print_stat (1, &def
->def
.un
.enum_decl
);
366 f_print (fout
, "\tswitch (objp->%s) {\n", def
->def
.un
.enum_decl
.name
);
367 for (cl
= def
->def
.un
.cases
; cl
!= NULL
; cl
= cl
->next
)
370 f_print (fout
, "\tcase %s:\n", cl
->case_name
);
371 if (cl
->contflag
== 1) /* a continued case statement */
374 if (!streq (cs
->type
, "void"))
376 object
= alloc (strlen (def
->def_name
) + strlen (format
) +
377 strlen (cs
->name
) + 1);
378 if (isvectordef (cs
->type
, cs
->rel
))
380 s_print (object
, vecformat
, def
->def_name
,
385 s_print (object
, format
, def
->def_name
,
388 print_ifstat (2, cs
->prefix
, cs
->type
, cs
->rel
, cs
->array_max
,
392 f_print (fout
, "\t\tbreak;\n");
394 dflt
= def
->def
.un
.default_decl
;
397 if (!streq (dflt
->type
, "void"))
399 f_print (fout
, "\tdefault:\n");
400 object
= alloc (strlen (def
->def_name
) + strlen (format
) +
401 strlen (dflt
->name
) + 1);
402 if (isvectordef (dflt
->type
, dflt
->rel
))
404 s_print (object
, vecformat
, def
->def_name
,
409 s_print (object
, format
, def
->def_name
,
413 print_ifstat (2, dflt
->prefix
, dflt
->type
, dflt
->rel
,
414 dflt
->array_max
, object
, dflt
->name
);
416 f_print (fout
, "\t\tbreak;\n");
418 #ifdef __GNU_LIBRARY__
421 f_print (fout
, "\tdefault:\n");
422 f_print (fout
, "\t\tbreak;\n");
428 f_print (fout
, "\tdefault:\n");
429 f_print (fout
, "\t\treturn FALSE;\n");
432 f_print (fout
, "\t}\n");
436 inline_struct (definition
*def
, int flag
)
440 decl_list
*cur
= NULL
;
449 f_print (fout
, "\n\tif (xdrs->x_op == XDR_ENCODE) {\n");
452 "\t\treturn TRUE;\n\t} else if (xdrs->x_op == XDR_DECODE) {\n");
457 for (dl
= def
->def
.st
.decls
; dl
!= NULL
; dl
= dl
->next
)
459 /* now walk down the list and check for basic types */
460 if ((dl
->decl
.prefix
== NULL
) &&
461 ((ptr
= find_type (dl
->decl
.type
)) != NULL
) &&
462 ((dl
->decl
.rel
== REL_ALIAS
) || (dl
->decl
.rel
== REL_VECTOR
)))
468 if (dl
->decl
.rel
== REL_ALIAS
)
472 /* this is required to handle arrays */
478 if (ptr
->length
!= 1)
479 s_print (ptemp
, " %s %s * %d", plus
, dl
->decl
.array_max
,
482 s_print (ptemp
, " %s%s ", plus
, dl
->decl
.array_max
);
484 /*now concatenate to sizestr !!!! */
486 sizestr
= strdup (ptemp
);
489 sizestr
= realloc (sizestr
, strlen (sizestr
) +
493 f_print (stderr
, "Fatal error : no memory \n");
496 sizestr
= strcat (sizestr
, ptemp
);
497 /*build up length of array */
505 if (sizestr
== NULL
&& size
< inlineflag
)
507 /* don't expand into inline code if size < inlineflag */
510 print_stat (indent
+ 1, &cur
->decl
);
516 /* were already looking at a xdr_inlineable structure */
517 tabify (fout
, indent
+ 1);
519 f_print (fout
, "buf = XDR_INLINE (xdrs, %d * BYTES_PER_XDR_UNIT);", size
);
522 "buf = XDR_INLINE (xdrs, (%s) * BYTES_PER_XDR_UNIT);",
526 "buf = XDR_INLINE (xdrs, (%d + (%s)) * BYTES_PER_XDR_UNIT);",
528 f_print (fout
, "\n");
529 tabify (fout
, indent
+ 1);
530 fprintf (fout
, "if (buf == NULL) {\n");
534 print_stat (indent
+ 2, &cur
->decl
);
538 f_print (fout
, "\n\t\t} else {\n");
542 emit_inline (indent
+ 1, &cur
->decl
, flag
);
545 tabify (fout
, indent
+ 1);
546 f_print (fout
, "}\n");
553 print_stat (indent
+ 1, &dl
->decl
);
558 if (sizestr
== NULL
&& size
< inlineflag
)
560 /* don't expand into inline code if size < inlineflag */
563 print_stat (indent
+ 1, &cur
->decl
);
569 /* were already looking at a xdr_inlineable structure */
572 "\t\tbuf = XDR_INLINE (xdrs, %d * BYTES_PER_XDR_UNIT);",
576 "\t\tbuf = XDR_INLINE (xdrs, (%s) * BYTES_PER_XDR_UNIT);",
580 "\t\tbuf = XDR_INLINE (xdrs, (%d + %s)* BYTES_PER_XDR_UNIT);",
582 f_print (fout
, "\n\t\tif (buf == NULL) {\n");
586 print_stat (indent
+ 2, &cur
->decl
);
589 f_print (fout
, "\t\t} else {\n");
594 emit_inline (indent
+ 2, &cur
->decl
, flag
);
597 f_print (fout
, "\t\t}\n");
602 /* this may be const. i haven't traced this one through yet. */
605 emit_struct (definition
* def
)
615 /* No xdr_inlining at all */
616 for (dl
= def
->def
.st
.decls
; dl
!= NULL
; dl
= dl
->next
)
617 print_stat (1, &dl
->decl
);
621 for (dl
= def
->def
.st
.decls
; dl
!= NULL
; dl
= dl
->next
)
622 if (dl
->decl
.rel
== REL_VECTOR
)
624 f_print (fout
, "\tint i;\n");
631 * Make a first pass and see if inling is possible.
633 for (dl
= def
->def
.st
.decls
; dl
!= NULL
; dl
= dl
->next
)
634 if ((dl
->decl
.prefix
== NULL
) &&
635 ((ptr
= find_type (dl
->decl
.type
)) != NULL
) &&
636 ((dl
->decl
.rel
== REL_ALIAS
) || (dl
->decl
.rel
== REL_VECTOR
)))
638 if (dl
->decl
.rel
== REL_ALIAS
)
643 break; /* can be inlined */
648 if (size
>= inlineflag
)
651 break; /* can be inlined */
655 if (size
> inlineflag
)
659 { /* can not inline, drop back to old mode */
660 for (dl
= def
->def
.st
.decls
; dl
!= NULL
; dl
= dl
->next
)
661 print_stat (1, &dl
->decl
);
666 for (j
= 0; j
< 2; j
++)
668 inline_struct (def
, flag
);
673 f_print (fout
, "\t return TRUE;\n\t}\n\n");
675 /* now take care of XDR_FREE case */
677 for (dl
= def
->def
.st
.decls
; dl
!= NULL
; dl
= dl
->next
)
678 print_stat (1, &dl
->decl
);
682 emit_typedef (const definition
* def
)
684 const char *prefix
= def
->def
.ty
.old_prefix
;
685 const char *type
= def
->def
.ty
.old_type
;
686 const char *amax
= def
->def
.ty
.array_max
;
687 relation rel
= def
->def
.ty
.rel
;
689 print_ifstat (1, prefix
, type
, rel
, amax
, "objp", def
->def_name
);
693 print_stat (int indent
, const declaration
* dec
)
695 const char *prefix
= dec
->prefix
;
696 const char *type
= dec
->type
;
697 const char *amax
= dec
->array_max
;
698 relation rel
= dec
->rel
;
701 if (isvectordef (type
, rel
))
703 s_print (name
, "objp->%s", dec
->name
);
707 s_print (name
, "&objp->%s", dec
->name
);
709 print_ifstat (indent
, prefix
, type
, rel
, amax
, name
, dec
->name
);
714 emit_inline (int indent
, declaration
* decl
, int flag
)
719 emit_single_in_line (indent
, decl
, flag
, REL_ALIAS
);
722 tabify (fout
, indent
);
723 f_print (fout
, "{\n");
724 tabify (fout
, indent
+ 1);
725 f_print (fout
, "register %s *genp;\n\n", decl
->type
);
726 tabify (fout
, indent
+ 1);
728 "for (i = 0, genp = objp->%s;\n", decl
->name
);
729 tabify (fout
, indent
+ 2);
730 f_print (fout
, "i < %s; ++i) {\n", decl
->array_max
);
731 emit_single_in_line (indent
+ 2, decl
, flag
, REL_VECTOR
);
732 tabify (fout
, indent
+ 1);
733 f_print (fout
, "}\n");
734 tabify (fout
, indent
);
735 f_print (fout
, "}\n");
739 /* ?... do nothing I guess */
744 emit_single_in_line (int indent
, declaration
*decl
, int flag
, relation rel
)
749 tabify (fout
, indent
);
751 f_print (fout
, "IXDR_PUT_");
754 if (rel
== REL_ALIAS
)
755 f_print (fout
, "objp->%s = IXDR_GET_", decl
->name
);
757 f_print (fout
, "*genp++ = IXDR_GET_");
760 upp_case
= upcase (decl
->type
);
763 if (!strcmp (upp_case
, "INT"))
767 /* Casting is safe since the `freed' flag is set. */
768 upp_case
= (char *) "LONG";
771 if (!strcmp (upp_case
, "U_INT"))
775 /* Casting is safe since the `freed' flag is set. */
776 upp_case
= (char *) "U_LONG";
781 if (rel
== REL_ALIAS
)
782 f_print (fout
, "%s(buf, objp->%s);\n", upp_case
, decl
->name
);
784 f_print (fout
, "%s(buf, *genp++);\n", upp_case
);
788 f_print (fout
, "%s(buf);\n", upp_case
);
797 upcase (const char *str
)
800 ptr
= malloc (strlen (str
) + 1);
803 f_print (stderr
, "malloc failed\n");
808 *ptr
++ = toupper (*str
++);