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/*
* Mach Operating System
* Copyright (c) 1991,1990 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
#include <stdarg.h>
#include "write.h"
#include "utils.h"
#include "global.h"
void
WriteImport(FILE *file, const_string_t filename)
{
fprintf(file, "#include %s\n", filename);
}
void
WriteRCSDecl(FILE *file, identifier_t name, const_string_t rcs)
{
fprintf(file, "#ifndef\tlint\n");
fprintf(file, "#if\tUseExternRCSId\n");
fprintf(file, "char %s_rcsid[] = %s;\n", name, rcs);
fprintf(file, "#else\t/* UseExternRCSId */\n");
fprintf(file, "static char rcsid[] = %s;\n", rcs);
fprintf(file, "#endif\t/* UseExternRCSId */\n");
fprintf(file, "#endif\t/* lint */\n");
fprintf(file, "\n");
}
void
WriteBogusDefines(FILE *file)
{
fprintf(file, "#ifndef\tmig_internal\n");
fprintf(file, "#define\tmig_internal\tstatic\n");
fprintf(file, "#endif\n");
fprintf(file, "\n");
fprintf(file, "#ifndef\tmig_external\n");
fprintf(file, "#define mig_external\n");
fprintf(file, "#endif\n");
fprintf(file, "\n");
fprintf(file, "#ifndef\tTypeCheck\n");
fprintf(file, "#define\tTypeCheck 1\n");
fprintf(file, "#endif\n");
fprintf(file, "\n");
fprintf(file, "#ifndef\tUseExternRCSId\n");
fprintf(file, "#define\tUseExternRCSId\t\t1\n");
fprintf(file, "#endif\n");
fprintf(file, "\n");
}
void
WriteList(FILE *file, const argument_t *args, write_list_fn_t *func, u_int mask,
const char *between, const char *after)
{
register const argument_t *arg;
register boolean_t sawone = FALSE;
for (arg = args; arg != argNULL; arg = arg->argNext)
if (akCheckAll(arg->argKind, mask))
{
if (sawone)
fprintf(file, "%s", between);
sawone = TRUE;
(*func)(file, arg);
}
if (sawone)
fprintf(file, "%s", after);
}
static boolean_t
WriteReverseListPrim(FILE *file, register const argument_t *arg,
write_list_fn_t *func, u_int mask, const char *between)
{
boolean_t sawone = FALSE;
if (arg != argNULL)
{
sawone = WriteReverseListPrim(file, arg->argNext, func, mask, between);
if (akCheckAll(arg->argKind, mask))
{
if (sawone)
fprintf(file, "%s", between);
sawone = TRUE;
(*func)(file, arg);
}
}
return sawone;
}
void
WriteReverseList(FILE *file, const argument_t *args, write_list_fn_t *func,
u_int mask, const char *between, const char *after)
{
boolean_t sawone;
sawone = WriteReverseListPrim(file, args, func, mask, between);
if (sawone)
fprintf(file, "%s", after);
}
void
WriteNameDecl(FILE *file, const argument_t *arg)
{
fprintf(file, "%s", arg->argVarName);
}
void
WriteUserVarDecl(FILE *file, const argument_t *arg)
{
const char *ref = arg->argByReferenceUser ? "*" : "";
fprintf(file, "\t%s %s%s", arg->argType->itUserType, ref, arg->argVarName);
}
void
WriteServerVarDecl(FILE *file, const argument_t *arg)
{
const char *ref = arg->argByReferenceServer ? "*" : "";
fprintf(file, "\t%s %s%s",
arg->argType->itTransType, ref, arg->argVarName);
}
void
WriteTypeDeclIn(FILE *file, register const argument_t *arg)
{
WriteStaticDecl(file, arg->argType,
arg->argType->itIndefinite ? d_NO : arg->argDeallocate,
arg->argLongForm, TRUE, arg->argTTName);
}
void
WriteTypeDeclOut(FILE *file, register const argument_t *arg)
{
WriteStaticDecl(file, arg->argType,
arg->argType->itIndefinite ? d_NO : arg->argDeallocate,
arg->argLongForm, FALSE, arg->argTTName);
}
void
WriteCheckDecl(FILE *file, register const argument_t *arg)
{
register const ipc_type_t *it = arg->argType;
/* We'll only be called for short-form types.
Note we use itOutNameStr instead of itInNameStr, because
this declaration will be used to check received types. */
fprintf(file, "\tstatic const mach_msg_type_t %sCheck = {\n",
arg->argVarName);
fprintf(file, "\t\t/* msgt_name = */\t\t%s,\n", it->itOutNameStr);
fprintf(file, "\t\t/* msgt_size = */\t\t%d,\n", it->itSize);
fprintf(file, "\t\t/* msgt_number = */\t\t%d,\n", it->itNumber);
fprintf(file, "\t\t/* msgt_inline = */\t\t%s,\n",
strbool(it->itInLine));
fprintf(file, "\t\t/* msgt_longform = */\t\tFALSE,\n");
fprintf(file, "\t\t/* msgt_deallocate = */\t\t%s,\n",
strbool(!it->itInLine));
fprintf(file, "\t\t/* msgt_unused = */\t\t0\n");
fprintf(file, "\t};\n");
}
const char *
ReturnTypeStr(const routine_t *rt)
{
if (rt->rtReturn == argNULL)
return "void";
else
return rt->rtReturn->argType->itUserType;
}
const char *
FetchUserType(const ipc_type_t *it)
{
return it->itUserType;
}
const char *
FetchServerType(const ipc_type_t *it)
{
return it->itServerType;
}
void
WriteFieldDeclPrim(FILE *file, const argument_t *arg,
const char *(*tfunc)(const ipc_type_t *))
{
register const ipc_type_t *it = arg->argType;
fprintf(file, "\t\tmach_msg_type_%st %s;\n",
arg->argLongForm ? "long_" : "", arg->argTTName);
if (it->itInLine && it->itVarArray)
{
register ipc_type_t *btype = it->itElement;
/*
* Build our own declaration for a varying array:
* use the element type and maximum size specified.
* Note arg->argCount->argMultiplier == btype->itNumber.
*/
fprintf(file, "\t\t%s %s[%d];",
(*tfunc)(btype),
arg->argMsgField,
it->itNumber/btype->itNumber);
}
else
fprintf(file, "\t\t%s %s;", (*tfunc)(it), arg->argMsgField);
if (it->itPadSize != 0)
fprintf(file, "\n\t\tchar %s[%d];", arg->argPadName, it->itPadSize);
}
void
WriteStructDecl(FILE *file, const argument_t *args, write_list_fn_t *func,
u_int mask, const char *name)
{
fprintf(file, "\ttypedef struct {\n");
fprintf(file, "\t\tmach_msg_header_t Head;\n");
WriteList(file, args, func, mask, "\n", "\n");
fprintf(file, "\t} %s;\n", name);
fprintf(file, "\n");
}
static void
WriteStaticLongDecl(FILE *file, register const ipc_type_t *it,
dealloc_t dealloc, boolean_t inname, identifier_t name)
{
fprintf(file, "\tstatic const mach_msg_type_long_t %s = {\n", name);
fprintf(file, "\t{\n");
fprintf(file, "\t\t/* msgt_name = */\t\t0,\n");
fprintf(file, "\t\t/* msgt_size = */\t\t0,\n");
fprintf(file, "\t\t/* msgt_number = */\t\t0,\n");
fprintf(file, "\t\t/* msgt_inline = */\t\t%s,\n",
strbool(it->itInLine));
fprintf(file, "\t\t/* msgt_longform = */\t\tTRUE,\n");
fprintf(file, "\t\t/* msgt_deallocate = */\t\t%s,\n",
strdealloc(dealloc));
fprintf(file, "\t\t/* msgt_unused = */\t\t0\n");
fprintf(file, "\t},\n");
fprintf(file, "\t\t/* msgtl_name = */\t%s,\n",
inname ? it->itInNameStr : it->itOutNameStr);
fprintf(file, "\t\t/* msgtl_size = */\t%d,\n", it->itSize);
fprintf(file, "\t\t/* msgtl_number = */\t%d,\n", it->itNumber);
fprintf(file, "\t};\n");
}
static void
WriteStaticShortDecl(FILE *file, register const ipc_type_t *it,
dealloc_t dealloc, boolean_t inname, identifier_t name)
{
fprintf(file, "\tstatic const mach_msg_type_t %s = {\n", name);
fprintf(file, "\t\t/* msgt_name = */\t\t%s,\n",
inname ? it->itInNameStr : it->itOutNameStr);
fprintf(file, "\t\t/* msgt_size = */\t\t%d,\n", it->itSize);
fprintf(file, "\t\t/* msgt_number = */\t\t%d,\n", it->itNumber);
fprintf(file, "\t\t/* msgt_inline = */\t\t%s,\n",
strbool(it->itInLine));
fprintf(file, "\t\t/* msgt_longform = */\t\tFALSE,\n");
fprintf(file, "\t\t/* msgt_deallocate = */\t\t%s,\n",
strdealloc(dealloc));
fprintf(file, "\t\t/* msgt_unused = */\t\t0\n");
fprintf(file, "\t};\n");
}
void
WriteStaticDecl(FILE *file, const ipc_type_t *it, dealloc_t dealloc,
boolean_t longform, boolean_t inname, identifier_t name)
{
if (longform)
WriteStaticLongDecl(file, it, dealloc, inname, name);
else
WriteStaticShortDecl(file, it, dealloc, inname, name);
}
/*
* Like vfprintf, but omits a leading comment in the format string
* and skips the items that would be printed by it. Only %s, %d,
* and %f are recognized.
*/
static void
SkipVFPrintf(FILE *file, register const char *fmt, va_list pvar)
{
if (*fmt == 0)
return; /* degenerate case */
if (fmt[0] == '/' && fmt[1] == '*') {
/* Format string begins with C comment. Scan format
string until end-comment delimiter, skipping the
items in pvar that the enclosed format items would
print. */
register int c;
fmt += 2;
for (;;) {
c = *fmt++;
if (c == 0)
return; /* nothing to format */
if (c == '*') {
if (*fmt == '/') {
break;
}
}
else if (c == '%') {
/* Field to skip */
c = *fmt++;
switch (c) {
case 's':
(void) va_arg(pvar, char *);
break;
case 'd':
(void) va_arg(pvar, int);
break;
case 'f':
(void) va_arg(pvar, double);
break;
case '\0':
return; /* error - fmt ends with '%' */
default:
break;
}
}
}
/* End of comment. To be pretty, skip
the space that follows. */
fmt++;
if (*fmt == ' ')
fmt++;
}
/* Now format the string. */
(void) vfprintf(file, fmt, pvar);
}
void
WriteCopyType(FILE *file, const ipc_type_t *it, const char *left,
const char *right, ...)
{
va_list pvar;
va_start(pvar, right);
if (it->itStruct)
{
fprintf(file, "\t");
SkipVFPrintf(file, left, pvar);
fprintf(file, " = ");
SkipVFPrintf(file, right, pvar);
fprintf(file, ";\n");
}
else if (it->itString)
{
fprintf(file, "\t(void) %smig_strncpy(", SubrPrefix);
SkipVFPrintf(file, left, pvar);
fprintf(file, ", ");
SkipVFPrintf(file, right, pvar);
fprintf(file, ", %d);\n", it->itTypeSize);
}
else
{
fprintf(file, "\t{ typedef struct { char data[%d]; } *sp; * (sp) ",
it->itTypeSize);
SkipVFPrintf(file, left, pvar);
fprintf(file, " = * (sp) ");
SkipVFPrintf(file, right, pvar);
fprintf(file, "; }\n");
}
va_end(pvar);
}
void
WritePackMsgType(FILE *file, const ipc_type_t *it, dealloc_t dealloc,
boolean_t longform, boolean_t inname, const char *left,
const char *right, ...)
{
va_list pvar;
va_start(pvar, right);
fprintf(file, "\t");
SkipVFPrintf(file, left, pvar);
fprintf(file, " = ");
SkipVFPrintf(file, right, pvar);
fprintf(file, ";\n");
va_end(pvar);
}
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