View of /trunk/uia/sst/rpcgen/hout.c

/*
 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
 * unrestricted use provided that this legend is included on all tape
 * media and as a part of the software program in whole or part.  Users
 * may copy or modify Sun RPC without charge, but are not authorized
 * to license or distribute it to anyone else except as part of a product or
 * program developed by the user.
 *
 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
 *
 * Sun RPC is provided with no support and without any obligation on the
 * part of Sun Microsystems, Inc. to assist in its use, correction,
 * modification or enhancement.
 *
 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
 * OR ANY PART THEREOF.
 *
 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
 * or profits or other special, indirect and consequential damages, even if
 * Sun has been advised of the possibility of such damages.
 *
 * Sun Microsystems, Inc.
 * 2550 Garcia Avenue
 * Mountain View, California  94043
 */

/*
 * hout.c, Header file outputter for the RPC protocol compiler
 * Copyright (C) 1987, Sun Microsystems, Inc.
 */
#include <stdio.h>
#include <ctype.h>
#include "parse.h"
#include "util.h"

void storexdrfuncdecl( char *, int );
static void pconstdef( definition * );
static void pstructdef( definition * );
static void puniondef( definition * );
static void pprogramdef( definition * );
static void pstructdef( definition * );
static void penumdef( definition * );
static void ptypedef( definition * );
static int undefined2( char *, char * );
static void parglist( proc_list *, char * );
static void pprocdef( proc_list *, version_list *, char *, int, int );
void pdeclaration( char *, declaration *, int, char * );

/*
 * Print the C-version of an xdr definition
 */
void
print_datadef(def)
	definition *def;
{

	if (def->def_kind == DEF_PROGRAM)  /* handle data only */
		return;

	if (def->def_kind != DEF_CONST) {
		f_print(fout, "\n");
	}
	switch (def->def_kind) {
	case DEF_STRUCT:
		pstructdef(def);
		break;
	case DEF_UNION:
		puniondef(def);
		break;
	case DEF_ENUM:
		penumdef(def);
		break;
	case DEF_TYPEDEF:
		ptypedef(def);
		break;
	case DEF_PROGRAM:
		pprogramdef(def);
		break;
	case DEF_CONST:
		pconstdef(def);
		break;
	}
	if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST) {
	    storexdrfuncdecl(def->def_name,
			     def->def_kind != DEF_TYPEDEF ||
			     !isvectordef(def->def.ty.old_type,
					  def->def.ty.rel));
	}
}


void
print_funcdef(def)
	definition *def;
{
	switch (def->def_kind) {
	case DEF_PROGRAM:
		f_print(fout, "\n");
		pprogramdef(def);
		break;
	default:
		break;
	}
}

/* store away enough information to allow the XDR functions to be spat
    out at the end of the file */

void
storexdrfuncdecl(name, pointerp)
char *name;
int pointerp;
{
	xdrfunc * xdrptr;

	xdrptr = XALLOC(struct xdrfunc);

	xdrptr->name = name;
	xdrptr->pointerp = pointerp;
	xdrptr->next = NULL;

	if (xdrfunc_tail == NULL){
		xdrfunc_head = xdrptr;
		xdrfunc_tail = xdrptr;
	} else {
		xdrfunc_tail->next = xdrptr;
		xdrfunc_tail = xdrptr;
	}
}

void
print_xdr_func_def(name)
char* name;
{
	// XXX make namespace selectable/optional
	f_print(fout, "SST::XdrStream &operator<<(SST::XdrStream &xs, const SST::%s &v);\n",
		name);
	f_print(fout, "SST::XdrStream &operator>>(SST::XdrStream &xs, SST::%s &v);\n\n",
		name);
}


static void
pconstdef(def)
	definition *def;
{
	f_print(fout, "const int %s = %s;\n", def->def_name, def->def.co);
}


/* print out the definitions for the arguments of functions in the
    header file
*/
static void
pargdef(def)
	definition *def;
{
	decl_list *l;
	version_list *vers;
	char *name;
	proc_list *plist;


	for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) {
			for (plist = vers->procs; plist != NULL;
			    plist = plist->next) {

				if (!newstyle || plist->arg_num < 2) {
					continue; /* old style or single args */
				}
				name = plist->args.argname;
				f_print(fout, "struct %s {\n", name);
				for (l = plist->args.decls;
				    l != NULL; l = l->next) {
					pdeclaration(name, &l->decl, 1,
						     ";\n");
				}
				f_print(fout, "};\n");
				f_print(fout, "typedef struct %s %s;\n",
					name, name);
				storexdrfuncdecl(name, 1);
				f_print(fout, "\n");
			}
		}
}


static void
pstructdef(def)
	definition *def;
{
	decl_list *l;
	char *name = def->def_name;

	f_print(fout, "struct %s {\n", name);
	for (l = def->def.st.decls; l != NULL; l = l->next) {
		pdeclaration(name, &l->decl, 1, ";\n");
	}
	f_print(fout, "};\n");
}

static void
puniondef(def)
	definition *def;
{
	case_list *l;
	char *name = def->def_name;
	declaration *decl;

	f_print(fout, "struct %s {\n", name);
	decl = &def->def.un.enum_decl;
	if (streq(decl->type, "bool")) {
		f_print(fout, "\tbool_t %s;\n", decl->name);
	} else {
		f_print(fout, "\t%s %s;\n", decl->type, decl->name);
	}
	for (l = def->def.un.cases; l != NULL; l = l->next) {
	    if (l->contflag == 0)
		pdeclaration(name, &l->case_decl, 1, ";\n");
	}
	decl = def->def.un.default_decl;
	if (decl && !streq(decl->type, "void")) {
		pdeclaration(name, decl, 1, ";\n");
	}
	f_print(fout, "};\n");
}

static void
pcastdefine(name, type, num)
	char *name;
	char *type;
	char *num;
{
	f_print(fout, "#define\t%s ((%s)(%s))\n", name, type, num);
}

static int
define_printed(stop, start)
	proc_list *stop;
	version_list *start;
{
	version_list *vers;
	proc_list *proc;

	for (vers = start; vers != NULL; vers = vers->next) {
		for (proc = vers->procs; proc != NULL; proc = proc->next) {
			if (proc == stop) {
				return (0);
			} else if (streq(proc->proc_name, stop->proc_name)) {
				return (1);
			}
		}
	}
	abort();
	/* NOTREACHED */
}

static void
pfreeprocdef(char * name, char *vers, int mode)
{
	f_print(fout, "extern int ");
	pvname(name, vers);
	if (mode == 1)
		f_print(fout,"_freeresult(SVCXPRT *, xdrproc, caddr_t);\n");
	else
		f_print(fout,"_freeresult();\n");
}

static void
pdispatch(char * name, char *vers, int mode)
{
	f_print(fout, "void ");
	pvname(name, vers);
	if (mode == 1)
		f_print(fout,
		    "(struct svc_req *rqstp, register SVCXPRT *transp);\n");
	else
		f_print(fout,"();\n");
}

static void
pprogramdef(def)
	definition *def;
{
	version_list *vers;
	proc_list *proc;
	int i;
	char *ext;

	pargdef(def);

	pcastdefine(def->def_name, "rpcprog_t", def->def.pr.prog_num);
	for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) {
		if (tblflag) {
			f_print(fout,
				"extern struct rpcgen_table %s_%s_table[];\n",
				locase(def->def_name), vers->vers_num);
			f_print(fout,
				"extern %s_%s_nproc;\n",
				locase(def->def_name), vers->vers_num);
		}
		pcastdefine(vers->vers_name, "rpcvers_t", vers->vers_num);

		/*
		 * Print out 2 definitions, one for ANSI-C, another for
		 * old K & R C
		 */

		if(!Cflag){
			ext = "extern  ";
			f_print(fout, "%s", ext);
			pdispatch(def->def_name, vers->vers_num, 2);
			for (proc = vers->procs; proc != NULL;
			     proc = proc->next) {
				if (!define_printed(proc,
						    def->def.pr.versions)) {
					pcastdefine(proc->proc_name,
						"rpcproc_t",
						proc->proc_num);
				}
				f_print(fout, "%s", ext);
				pprocdef(proc, vers, NULL, 0, 2);
				
				if (mtflag) {
					f_print(fout, "%s", ext);
					pprocdef(proc, vers, NULL, 1, 2);
				}
			}
			pfreeprocdef(def->def_name, vers->vers_num, 2);
			
		} else {
			for (i = 1; i < 3; i++){
				if (i == 1){
					f_print(fout, "\n#if defined(__STDC__) || defined(__cplusplus)\n");
					ext = "extern  ";
				}else{
					f_print(fout, "\n#else /* K&R C */\n");
					ext = "extern  ";
				}

/*XXX				f_print(fout, "%s", ext);
				pdispatch(def->def_name, vers->vers_num, i);*/
				for (proc = vers->procs; proc != NULL;
				     proc = proc->next) {
					if (!define_printed(proc,
							    def->def.pr.versions)) {
						pcastdefine(proc->proc_name,
							"rpcproc_t",
							proc->proc_num);
					}
#if 0	/* XXX */
					f_print(fout, "%s", ext);
					pprocdef(proc, vers, "CLIENT *", 0, i);
					f_print(fout, "%s", ext);
					pprocdef(proc, vers, "struct svc_req *", 1, i);
#endif
				}
/*XXX			pfreeprocdef(def->def_name, vers->vers_num, i);*/
			}
			f_print(fout, "#endif /* K&R C */\n");
		}
	}
}

static void
pprocdef(proc, vp, addargtype, server_p, mode)
	proc_list *proc;
	version_list *vp;
	char* addargtype;
	int server_p;
	int mode;
{
	if (mtflag) {/* Print MT style stubs */
		if (server_p)
			f_print(fout, "bool_t ");
		else
			f_print(fout, "enum clnt_stat ");
	} else {
		ptype(proc->res_prefix, proc->res_type, 1);
		f_print(fout, "* ");
	}
	if (server_p)
		pvname_svc(proc->proc_name, vp->vers_num);
	else
		pvname(proc->proc_name, vp->vers_num);

	/*
	 *  mode  1 = ANSI-C, mode 2 = K&R C
	 */
	if ( mode == 1)
		parglist(proc, addargtype);
	else
		f_print(fout, "();\n");
}



/* print out argument list of procedure */
static void
parglist(proc, addargtype)
	proc_list *proc;
    char* addargtype;
{
	decl_list *dl;

	f_print(fout, "(");
	if (proc->arg_num < 2 && newstyle &&
	    streq(proc->args.decls->decl.type, "void")) {
		/* 0 argument in new style:  do nothing*/
	}
	else {
		for (dl = proc->args.decls; dl != NULL; dl = dl->next) {
			ptype(dl->decl.prefix, dl->decl.type, 1);
			if (!newstyle)
				f_print(fout, "*");
			/* old style passes by reference */
			f_print(fout, ", ");
		}
	}

	if (mtflag)  {
		ptype(proc->res_prefix, proc->res_type, 1);
		f_print(fout, "*, ");
	}

	f_print(fout, "%s);\n", addargtype);

}

static void
penumdef(def)
	definition *def;
{
	char *name = def->def_name;
	enumval_list *l;
	char *last = NULL;
	int count = 0;

	f_print(fout, "enum %s {\n", name);
	for (l = def->def.en.vals; l != NULL; l = l->next) {
		f_print(fout, "\t%s", l->name);
		if (l->assignment) {
			f_print(fout, " = %s", l->assignment);
			last = l->assignment;
			count = 1;
		} else {
			if (last == NULL) {
				f_print(fout, " = %d", count++);
			} else {
				f_print(fout, " = %s + %d", last, count++);
			}
		}
		if (l->next)
			f_print(fout, ",\n");
		else
			f_print(fout, "\n");
	}
	f_print(fout, "};\n");
}

static void
ptypedef(def)
	definition *def;
{
	char *name = def->def_name;
	char *old = def->def.ty.old_type;
	char prefix[8];	/* enough to contain "struct ", including NUL */
	relation rel = def->def.ty.rel;


	if (!streq(name, old)) {
		if (streq(old, "string")) {
			old = "char";
			rel = REL_POINTER;
		} else if (streq(old, "opaque")) {
			old = "char";
		} else if (streq(old, "bool")) {
			old = "bool_t";
		}
		if (undefined2(old, name) && def->def.ty.old_prefix) {
			s_print(prefix, "%s ", def->def.ty.old_prefix);
		} else {
			prefix[0] = 0;
		}
		f_print(fout, "typedef ");
		switch (rel) {
		case REL_VECTOR:
		case REL_ARRAY:
			f_print(fout, "QList<%s%s> %s", prefix, old, name);
			break;
		case REL_POINTER:
			f_print(fout, "XdrPointer<%s%s> %s", prefix, old, name);
			break;
		case REL_OPTION:
			f_print(fout, "XdrOption<%s%s> %s", prefix, old, name);
			break;
		case REL_ALIAS:
			f_print(fout, "%s%s %s", prefix, old, name);
			break;
		}
		f_print(fout, ";\n");
	}
}

void
pdeclaration(name, dec, tab, separator)
	char *name;
	declaration *dec;
	int tab;
	char *separator;
{
	char buf[8];	/* enough to hold "struct ", include NUL */
	char *prefix;
	char *type;

	if (streq(dec->type, "void")) {
		return;
	}
	tabify(fout, tab);
	if (streq(dec->type, name) && !dec->prefix) {
		f_print(fout, "struct ");
	}
	if (streq(dec->type, "string")) {
		f_print(fout, "QString %s", dec->name);
	} else {
		prefix = "";
		if (streq(dec->type, "opaque")) {
			type = "char";
		} else {
			if (dec->prefix) {
				s_print(buf, "%s ", dec->prefix);
				prefix = buf;
			}
			type = dec->type;
		}
		switch (dec->rel) {
		case REL_ALIAS:
			f_print(fout, "%s%s %s", prefix, type, dec->name);
			break;
		case REL_VECTOR:
		case REL_ARRAY:
			if (streq(dec->type, "opaque"))
				f_print(fout, "QByteArray %s", dec->name);
			else
				f_print(fout, "QList<%s%s> %s",
					prefix, type, dec->name);
			break;
		case REL_POINTER:
			f_print(fout, "XdrPointer<%s%s> %s",
				prefix, type, dec->name);
			break;
		case REL_OPTION:
			f_print(fout, "XdrOption<%s%s> %s",
				prefix, type, dec->name);
			break;
		}
	}
	f_print(fout, separator);
}

static int
undefined2(type, stop)
	char *type;
	char *stop;
{
	list *l;
	definition *def;

	for (l = defined; l != NULL; l = l->next) {
		def = (definition *) l->val;
		if (def->def_kind != DEF_PROGRAM) {
			if (streq(def->def_name, stop)) {
				return (1);
			} else if (streq(def->def_name, type)) {
				return (0);
			}
		}
	}
	return (1);
}