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|
###################################################
# EJS function wrapper generator
# Copyright jelmer@samba.org 2005
# Copyright Andrew Tridgell 2005
# released under the GNU GPL
package Parse::Pidl::Samba4::EJS;
use Exporter;
@ISA = qw(Exporter);
@EXPORT_OK = qw(check_null_pointer fn_declare TypeFunctionName);
use strict;
use Parse::Pidl::Typelist;
use Parse::Pidl::CUtil qw(get_pointer_to get_value_of);
use Parse::Pidl::Util qw(has_property ParseExpr);
use Parse::Pidl::NDR qw(GetPrevLevel GetNextLevel);
use Parse::Pidl::Samba4::NDR::Parser qw(GenerateStructEnv GenerateFunctionInEnv
GenerateFunctionOutEnv);
use vars qw($VERSION);
$VERSION = '0.01';
sub new($) {
my ($class) = @_;
my $self = { res => "", res_hdr => "", tabs => "", constants => {}};
bless($self, $class);
}
sub pidl_hdr ($$)
{
my $self = shift;
$self->{res_hdr} .= shift;
}
sub pidl($$)
{
my ($self, $d) = @_;
if ($d) {
$self->{res} .= $self->{tabs};
$self->{res} .= $d;
}
$self->{res} .= "\n";
}
sub indent($)
{
my ($self) = @_;
$self->{tabs} .= "\t";
}
sub deindent($)
{
my ($self) = @_;
$self->{tabs} = substr($self->{tabs}, 0, -1);
}
#####################################################################
# check that a variable we get from ParseExpr isn't a null pointer
sub check_null_pointer($$)
{
my ($self, $size) = @_;
if ($size =~ /^\*/) {
my $size2 = substr($size, 1);
$self->pidl("if ($size2 == NULL) return NT_STATUS_INVALID_PARAMETER_MIX;");
}
}
#####################################################################
# work out is a parse function should be declared static or not
sub fn_declare($$$)
{
my ($self,$fn,$decl) = @_;
if (has_property($fn, "public")) {
$self->pidl_hdr("$decl;\n");
$self->pidl("_PUBLIC_ $decl");
} else {
$self->pidl("static $decl");
}
}
###########################
# pull a scalar element
sub EjsPullScalar($$$$$$$)
{
my ($self, $e, $l, $var, $name, $env) = @_;
return if (has_property($e, "value"));
if (ref($e->{TYPE}) eq "HASH" and not defined($e->{TYPE}->{NAME})) {
$self->EjsTypePull($e->{TYPE}, $var);
} else {
my $pl = Parse::Pidl::NDR::GetPrevLevel($e, $l);
$var = get_pointer_to($var);
# have to handle strings specially :(
if (Parse::Pidl::Typelist::scalar_is_reference($e->{TYPE})
and (defined($pl) and $pl->{TYPE} eq "POINTER")) {
$var = get_pointer_to($var);
}
my $t;
if (ref($e->{TYPE}) eq "HASH") {
$t = "$e->{TYPE}->{TYPE}_$e->{TYPE}->{NAME}";
} else {
$t = $e->{TYPE};
}
$self->pidl("EJS_CHECK(ejs_pull_$t(ejs, v, $name, $var));");
}
}
###########################
# pull a pointer element
sub EjsPullPointer($$$$$$)
{
my ($self, $e, $l, $var, $name, $env) = @_;
$self->pidl("if (ejs_pull_null(ejs, v, $name)) {");
$self->indent;
if ($l->{POINTER_TYPE} eq "ref") {
$self->pidl("return NT_STATUS_INVALID_PARAMETER_MIX;");
} else {
$self->pidl("$var = NULL;");
}
$self->deindent;
$self->pidl("} else {");
$self->indent;
$self->pidl("EJS_ALLOC(ejs, $var);");
$var = get_value_of($var);
$self->EjsPullElement($e, GetNextLevel($e, $l), $var, $name, $env);
$self->deindent;
$self->pidl("}");
}
###########################
# pull a string element
sub EjsPullString($$$$$$)
{
my ($self, $e, $l, $var, $name, $env) = @_;
my $pl = GetPrevLevel($e, $l);
$var = get_pointer_to($var);
if (defined($pl) and $pl->{TYPE} eq "POINTER") {
$var = get_pointer_to($var);
}
$self->pidl("EJS_CHECK(ejs_pull_string(ejs, v, $name, $var));");
}
###########################
# pull an array element
sub EjsPullArray($$$$$$)
{
my ($self, $e, $l, $var, $name, $env) = @_;
my $nl = GetNextLevel($e, $l);
my $length = ParseExpr($l->{LENGTH_IS}, $env, $e);
my $size = ParseExpr($l->{SIZE_IS}, $env, $e);
my $pl = GetPrevLevel($e, $l);
if ($pl && $pl->{TYPE} eq "POINTER") {
$var = get_pointer_to($var);
}
# uint8 arrays are treated as data blobs
if ($nl->{TYPE} eq 'DATA' && $e->{TYPE} eq 'uint8') {
if (!$l->{IS_FIXED}) {
$self->check_null_pointer($size);
$self->pidl("EJS_ALLOC_N(ejs, $var, $size);");
}
$self->check_null_pointer($length);
$self->pidl("ejs_pull_array_uint8(ejs, v, $name, $var, $length);");
return;
}
my $avar = $var . "[i]";
$self->pidl("{");
$self->indent;
$self->pidl("uint32_t i;");
if (!$l->{IS_FIXED}) {
$self->pidl("EJS_ALLOC_N(ejs, $var, $size);");
}
$self->pidl("for (i=0;i<$length;i++) {");
$self->indent;
$self->pidl("char *id = talloc_asprintf(ejs, \"%s.%u\", $name, i);");
$self->EjsPullElement($e, $nl, $avar, "id", $env);
$self->pidl("talloc_free(id);");
$self->deindent;
$self->pidl("}");
$self->pidl("ejs_push_uint32(ejs, v, $name \".length\", &i);");
$self->deindent;
$self->pidl("}");
}
###########################
# pull a switch element
sub EjsPullSwitch($$$$$$)
{
my ($self, $e, $l, $var, $name, $env) = @_;
my $switch_var = ParseExpr($l->{SWITCH_IS}, $env, $e);
$self->pidl("ejs_set_switch(ejs, $switch_var);");
$self->EjsPullElement($e, GetNextLevel($e, $l), $var, $name, $env);
}
###########################
# pull a structure element
sub EjsPullElement($$$$$$)
{
my ($self, $e, $l, $var, $name, $env) = @_;
if (($l->{TYPE} eq "POINTER")) {
$self->EjsPullPointer($e, $l, $var, $name, $env);
} elsif (has_property($e, "charset")) {
$self->EjsPullString($e, $l, $var, $name, $env);
} elsif ($l->{TYPE} eq "ARRAY") {
$self->EjsPullArray($e, $l, $var, $name, $env);
} elsif ($l->{TYPE} eq "DATA") {
$self->EjsPullScalar($e, $l, $var, $name, $env);
} elsif (($l->{TYPE} eq "SWITCH")) {
$self->EjsPullSwitch($e, $l, $var, $name, $env);
} else {
$self->pidl("return ejs_panic(ejs, \"unhandled pull type $l->{TYPE}\");");
}
}
#############################################
# pull a structure/union element at top level
sub EjsPullElementTop($$$)
{
my ($self, $e, $env) = @_;
my $l = $e->{LEVELS}[0];
my $var = ParseExpr($e->{NAME}, $env, $e);
my $name = "\"$e->{NAME}\"";
$self->EjsPullElement($e, $l, $var, $name, $env);
}
###########################
# pull a struct
sub EjsStructPull($$$)
{
my ($self, $d, $varname) = @_;
my $env = GenerateStructEnv($d, $varname);
$self->pidl("EJS_CHECK(ejs_pull_struct_start(ejs, &v, name));");
foreach my $e (@{$d->{ELEMENTS}}) {
$self->EjsPullElementTop($e, $env);
}
}
###########################
# pull a union
sub EjsUnionPull($$$)
{
my ($self, $d, $varname) = @_;
my $have_default = 0;
$self->pidl("EJS_CHECK(ejs_pull_struct_start(ejs, &v, name));");
$self->pidl("switch (ejs->switch_var) {");
$self->indent;
foreach my $e (@{$d->{ELEMENTS}}) {
if ($e->{CASE} eq "default") {
$have_default = 1;
}
$self->pidl("$e->{CASE}:");
$self->indent;
if ($e->{TYPE} ne "EMPTY") {
$self->EjsPullElementTop($e, { $e->{NAME} => "$varname->$e->{NAME}"});
}
$self->pidl("break;");
$self->deindent;
}
if (! $have_default) {
$self->pidl("default:");
$self->indent;
$self->pidl("return ejs_panic(ejs, \"Bad switch value\");");
$self->deindent;
}
$self->deindent;
$self->pidl("}");
}
##############################################
# put the enum elements in the constants array
sub EjsEnumConstant($$)
{
my ($self, $d) = @_;
my $v = 0;
foreach my $e (@{$d->{ELEMENTS}}) {
my $el = $e;
chomp $el;
if ($el =~ /^(.*)=\s*(.*)\s*$/) {
$el = $1;
$v = $2;
}
$self->{constants}->{$el} = $v;
$v++;
}
}
###########################
# pull a enum
sub EjsEnumPull($$$)
{
my ($self, $d, $varname) = @_;
$self->EjsEnumConstant($d);
$self->pidl("unsigned e;");
$self->pidl("EJS_CHECK(ejs_pull_enum(ejs, v, name, &e));");
$self->pidl("*$varname = e;");
}
###########################
# pull a bitmap
sub EjsBitmapPull($$$)
{
my ($self, $d, $varname) = @_;
my $type_fn = $d->{BASE_TYPE};
$self->pidl("EJS_CHECK(ejs_pull_$type_fn(ejs, v, name, $varname));");
}
sub EjsTypePullFunction($$$)
{
sub EjsTypePullFunction($$$);
my ($self, $d, $name) = @_;
return if (has_property($d, "noejs"));
if ($d->{TYPE} eq "TYPEDEF") {
$self->EjsTypePullFunction($d->{DATA}, $name);
return;
}
if ($d->{TYPE} eq "STRUCT") {
$self->fn_declare($d, "NTSTATUS ejs_pull_$name(struct ejs_rpc *ejs, struct MprVar *v, const char *name, struct $name *r)");
} elsif ($d->{TYPE} eq "UNION") {
$self->fn_declare($d, "NTSTATUS ejs_pull_$name(struct ejs_rpc *ejs, struct MprVar *v, const char *name, union $name *r)");
} elsif ($d->{TYPE} eq "ENUM") {
$self->fn_declare($d, "NTSTATUS ejs_pull_$name(struct ejs_rpc *ejs, struct MprVar *v, const char *name, enum $name *r)");
} elsif ($d->{TYPE} eq "BITMAP") {
my($type_decl) = Parse::Pidl::Typelist::mapTypeName($d->{BASE_TYPE});
$self->fn_declare($d, "NTSTATUS ejs_pull_$name(struct ejs_rpc *ejs, struct MprVar *v, const char *name, $type_decl *r)");
}
$self->pidl("{");
$self->indent;
$self->EjsTypePull($d, "r");
$self->pidl("return NT_STATUS_OK;");
$self->deindent;
$self->pidl("}\n");
}
sub EjsTypePull($$$)
{
my ($self, $d, $varname) = @_;
if ($d->{TYPE} eq 'STRUCT') {
$self->EjsStructPull($d, $varname);
} elsif ($d->{TYPE} eq 'UNION') {
$self->EjsUnionPull($d, $varname);
} elsif ($d->{TYPE} eq 'ENUM') {
$self->EjsEnumPull($d, $varname);
} elsif ($d->{TYPE} eq 'BITMAP') {
$self->EjsBitmapPull($d, $varname);
} else {
warn "Unhandled pull $varname of type $d->{TYPE}";
}
}
#####################
# generate a function
sub EjsPullFunction($$)
{
my ($self, $d) = @_;
my $env = GenerateFunctionInEnv($d);
my $name = $d->{NAME};
$self->pidl("\nstatic NTSTATUS ejs_pull_$name(struct ejs_rpc *ejs, struct MprVar *v, struct $name *r)");
$self->pidl("{");
$self->indent;
$self->pidl("EJS_CHECK(ejs_pull_struct_start(ejs, &v, \"input\"));");
# we pull non-array elements before array elements as arrays
# may have length_is() or size_is() properties that depend
# on the non-array elements
foreach my $e (@{$d->{ELEMENTS}}) {
next unless (grep(/in/, @{$e->{DIRECTION}}));
next if (has_property($e, "length_is") || has_property($e, "size_is"));
$self->EjsPullElementTop($e, $env);
}
foreach my $e (@{$d->{ELEMENTS}}) {
next unless (grep(/in/, @{$e->{DIRECTION}}));
next unless (has_property($e, "length_is") || has_property($e, "size_is"));
$self->EjsPullElementTop($e, $env);
}
$self->pidl("return NT_STATUS_OK;");
$self->deindent;
$self->pidl("}\n");
}
###########################
# push a scalar element
sub EjsPushScalar($$$$$$)
{
my ($self, $e, $l, $var, $name, $env) = @_;
if (ref($e->{TYPE}) eq "HASH" and not defined($e->{TYPE}->{NAME})) {
$self->EjsTypePush($e->{TYPE}, get_pointer_to($var));
} else {
# have to handle strings specially :(
my $pl = GetPrevLevel($e, $l);
if ((not Parse::Pidl::Typelist::scalar_is_reference($e->{TYPE}))
or (defined($pl) and $pl->{TYPE} eq "POINTER")) {
$var = get_pointer_to($var);
}
$self->pidl("EJS_CHECK(".TypeFunctionName("ejs_push", $e->{TYPE})."(ejs, v, $name, $var));");
}
}
###########################
# push a string element
sub EjsPushString($$$$$$)
{
my ($self, $e, $l, $var, $name, $env) = @_;
my $pl = GetPrevLevel($e, $l);
if (defined($pl) and $pl->{TYPE} eq "POINTER") {
$var = get_pointer_to($var);
}
$self->pidl("EJS_CHECK(ejs_push_string(ejs, v, $name, $var));");
}
###########################
# push a pointer element
sub EjsPushPointer($$$$$$)
{
my ($self, $e, $l, $var, $name, $env) = @_;
$self->pidl("if (NULL == $var) {");
$self->indent;
if ($l->{POINTER_TYPE} eq "ref") {
$self->pidl("return NT_STATUS_INVALID_PARAMETER_MIX;");
} else {
$self->pidl("EJS_CHECK(ejs_push_null(ejs, v, $name));");
}
$self->deindent;
$self->pidl("} else {");
$self->indent;
$var = get_value_of($var);
$self->EjsPushElement($e, GetNextLevel($e, $l), $var, $name, $env);
$self->deindent;
$self->pidl("}");
}
###########################
# push a switch element
sub EjsPushSwitch($$$$$$)
{
my ($self, $e, $l, $var, $name, $env) = @_;
my $switch_var = ParseExpr($l->{SWITCH_IS}, $env, $e);
$self->pidl("ejs_set_switch(ejs, $switch_var);");
$self->EjsPushElement($e, GetNextLevel($e, $l), $var, $name, $env);
}
###########################
# push an array element
sub EjsPushArray($$$$$$)
{
my ($self, $e, $l, $var, $name, $env) = @_;
my $nl = GetNextLevel($e, $l);
my $length = ParseExpr($l->{LENGTH_IS}, $env, $e);
my $pl = GetPrevLevel($e, $l);
if ($pl && $pl->{TYPE} eq "POINTER") {
$var = get_pointer_to($var);
}
# uint8 arrays are treated as data blobs
if ($nl->{TYPE} eq 'DATA' && $e->{TYPE} eq 'uint8') {
$self->check_null_pointer($length);
$self->pidl("ejs_push_array_uint8(ejs, v, $name, $var, $length);");
return;
}
my $avar = $var . "[i]";
$self->pidl("{");
$self->indent;
$self->pidl("uint32_t i;");
$self->pidl("for (i=0;i<$length;i++) {");
$self->indent;
$self->pidl("const char *id = talloc_asprintf(ejs, \"%s.%u\", $name, i);");
$self->EjsPushElement($e, $nl, $avar, "id", $env);
$self->deindent;
$self->pidl("}");
$self->pidl("ejs_push_uint32(ejs, v, $name \".length\", &i);");
$self->deindent;
$self->pidl("}");
}
################################
# push a structure/union element
sub EjsPushElement($$$$$$)
{
my ($self, $e, $l, $var, $name, $env) = @_;
if (($l->{TYPE} eq "POINTER")) {
$self->EjsPushPointer($e, $l, $var, $name, $env);
} elsif (has_property($e, "charset")) {
$self->EjsPushString($e, $l, $var, $name, $env);
} elsif ($l->{TYPE} eq "ARRAY") {
$self->EjsPushArray($e, $l, $var, $name, $env);
} elsif ($l->{TYPE} eq "DATA") {
$self->EjsPushScalar($e, $l, $var, $name, $env);
} elsif (($l->{TYPE} eq "SWITCH")) {
$self->EjsPushSwitch($e, $l, $var, $name, $env);
} else {
$self->pidl("return ejs_panic(ejs, \"unhandled push type $l->{TYPE}\");");
}
}
#############################################
# push a structure/union element at top level
sub EjsPushElementTop($$$)
{
my ($self, $e, $env) = @_;
my $l = $e->{LEVELS}[0];
my $var = ParseExpr($e->{NAME}, $env, $e);
my $name = "\"$e->{NAME}\"";
$self->EjsPushElement($e, $l, $var, $name, $env);
}
###########################
# push a struct
sub EjsStructPush($$$)
{
my ($self, $d, $varname) = @_;
my $env = GenerateStructEnv($d, $varname);
$self->pidl("EJS_CHECK(ejs_push_struct_start(ejs, &v, name));");
foreach my $e (@{$d->{ELEMENTS}}) {
$self->EjsPushElementTop($e, $env);
}
}
###########################
# push a union
sub EjsUnionPush($$$)
{
my ($self, $d, $varname) = @_;
my $have_default = 0;
$self->pidl("EJS_CHECK(ejs_push_struct_start(ejs, &v, name));");
$self->pidl("switch (ejs->switch_var) {");
$self->indent;
foreach my $e (@{$d->{ELEMENTS}}) {
if ($e->{CASE} eq "default") {
$have_default = 1;
}
$self->pidl("$e->{CASE}:");
$self->indent;
if ($e->{TYPE} ne "EMPTY") {
$self->EjsPushElementTop($e, { $e->{NAME} => "$varname->$e->{NAME}"} );
}
$self->pidl("break;");
$self->deindent;
}
if (! $have_default) {
$self->pidl("default:");
$self->indent;
$self->pidl("return ejs_panic(ejs, \"Bad switch value\");");
$self->deindent;
}
$self->deindent;
$self->pidl("}");
}
###########################
# push a enum
sub EjsEnumPush($$$)
{
my ($self, $d, $varname) = @_;
$self->EjsEnumConstant($d);
$self->pidl("unsigned e = ".get_value_of($varname).";");
$self->pidl("EJS_CHECK(ejs_push_enum(ejs, v, name, &e));");
}
###########################
# push a bitmap
sub EjsBitmapPush($$$)
{
my ($self, $d, $varname) = @_;
my $type_fn = $d->{BASE_TYPE};
# put the bitmap elements in the constants array
foreach my $e (@{$d->{ELEMENTS}}) {
if ($e =~ /^(\w*)\s*(.*)\s*$/) {
my $bname = $1;
my $v = $2;
$self->{constants}->{$bname} = $v;
}
}
$self->pidl("EJS_CHECK(ejs_push_$type_fn(ejs, v, name, $varname));");
}
sub EjsTypePushFunction($$$)
{
sub EjsTypePushFunction($$$);
my ($self, $d, $name) = @_;
return if (has_property($d, "noejs"));
my $var = undef;
my $dt = $d;
if ($dt->{TYPE} eq "TYPEDEF") {
$dt = $dt->{DATA};
}
if ($dt->{TYPE} eq "STRUCT") {
$var = "const struct $name *r";
} elsif ($dt->{TYPE} eq "UNION") {
$var = "const union $name *r";
} elsif ($dt->{TYPE} eq "ENUM") {
$var = "const enum $name *r";
} elsif ($dt->{TYPE} eq "BITMAP") {
my($type_decl) = Parse::Pidl::Typelist::mapTypeName($dt->{BASE_TYPE});
$var = "const $type_decl *r";
}
$self->fn_declare($d, "NTSTATUS ".TypeFunctionName("ejs_push", $d) . "(struct ejs_rpc *ejs, struct MprVar *v, const char *name, $var)");
$self->pidl("{");
$self->indent;
$self->EjsTypePush($d, "r");
$self->pidl("return NT_STATUS_OK;");
$self->deindent;
$self->pidl("}\n");
}
sub EjsTypePush($$$)
{
sub EjsTypePush($$$);
my ($self, $d, $varname) = @_;
if ($d->{TYPE} eq 'STRUCT') {
$self->EjsStructPush($d, $varname);
} elsif ($d->{TYPE} eq 'UNION') {
$self->EjsUnionPush($d, $varname);
} elsif ($d->{TYPE} eq 'ENUM') {
$self->EjsEnumPush($d, $varname);
} elsif ($d->{TYPE} eq 'BITMAP') {
$self->EjsBitmapPush($d, $varname);
} elsif ($d->{TYPE} eq 'TYPEDEF') {
$self->EjsTypePush($d->{DATA}, $varname);
} else {
warn "Unhandled push $varname of type $d->{TYPE}";
}
}
#####################
# generate a function
sub EjsPushFunction($$)
{
my ($self, $d) = @_;
my $env = GenerateFunctionOutEnv($d);
$self->pidl("\nstatic NTSTATUS ejs_push_$d->{NAME}(struct ejs_rpc *ejs, struct MprVar *v, const struct $d->{NAME} *r)");
$self->pidl("{");
$self->indent;
$self->pidl("EJS_CHECK(ejs_push_struct_start(ejs, &v, \"output\"));");
foreach my $e (@{$d->{ELEMENTS}}) {
next unless (grep(/out/, @{$e->{DIRECTION}}));
$self->EjsPushElementTop($e, $env);
}
if ($d->{RETURN_TYPE}) {
$self->pidl("EJS_CHECK(".TypeFunctionName("ejs_push", $d->{RETURN_TYPE})."(ejs, v, \"result\", &r->out.result));");
}
$self->pidl("return NT_STATUS_OK;");
$self->deindent;
$self->pidl("}\n");
}
#################################
# generate a ejs mapping function
sub EjsFunction($$$)
{
my ($self, $d, $iface) = @_;
my $name = $d->{NAME};
my $callnum = uc("NDR_$name");
my $table = "&ndr_table_$iface";
$self->pidl("static int ejs_$name(int eid, int argc, struct MprVar **argv)");
$self->pidl("{");
$self->indent;
$self->pidl("return ejs_rpc_call(eid, argc, argv, $table, $callnum, (ejs_pull_function_t)ejs_pull_$name, (ejs_push_function_t)ejs_push_$name);");
$self->deindent;
$self->pidl("}\n");
}
###################
# handle a constant
sub EjsConst($$)
{
my ($self, $const) = @_;
$self->{constants}->{$const->{NAME}} = $const->{VALUE};
}
sub EjsImport
{
my $self = shift;
my @imports = @_;
foreach (@imports) {
s/\.idl\"$//;
s/^\"//;
$self->pidl_hdr("#include \"librpc/gen_ndr/ndr_$_\_ejs\.h\"\n");
}
}
#####################################################################
# parse the interface definitions
sub EjsInterface($$$)
{
my($self,$interface,$needed) = @_;
my @fns = ();
my $name = $interface->{NAME};
$self->pidl_hdr("#ifndef _HEADER_EJS_$interface->{NAME}\n");
$self->pidl_hdr("#define _HEADER_EJS_$interface->{NAME}\n\n");
$self->pidl_hdr("\n");
foreach my $d (@{$interface->{TYPES}}) {
($needed->{TypeFunctionName("ejs_push", $d)}) && $self->EjsTypePushFunction($d, $d->{NAME});
($needed->{TypeFunctionName("ejs_pull", $d)}) && $self->EjsTypePullFunction($d, $d->{NAME});
}
foreach my $d (@{$interface->{FUNCTIONS}}) {
next if not defined($d->{OPNUM});
next if has_property($d, "noejs");
$self->EjsPullFunction($d);
$self->EjsPushFunction($d);
$self->EjsFunction($d, $name);
push (@fns, $d->{NAME});
}
foreach my $d (@{$interface->{CONSTS}}) {
$self->EjsConst($d);
}
$self->pidl("static int ejs_$name\_init(int eid, int argc, struct MprVar **argv)");
$self->pidl("{");
$self->indent;
$self->pidl("struct MprVar *obj = mprInitObject(eid, \"$name\", argc, argv);");
foreach (@fns) {
$self->pidl("mprSetCFunction(obj, \"$_\", ejs_$_);");
}
foreach my $v (keys %{$self->{constants}}) {
my $value = $self->{constants}->{$v};
if (substr($value, 0, 1) eq "\"") {
$self->pidl("mprSetVar(obj, \"$v\", mprString($value));");
} else {
$self->pidl("mprSetVar(obj, \"$v\", mprCreateNumberVar($value));");
}
}
$self->pidl("return ejs_rpc_init(obj, \"$name\");");
$self->deindent;
$self->pidl("}\n");
$self->pidl("NTSTATUS ejs_init_$name(void)");
$self->pidl("{");
$self->indent;
$self->pidl("ejsDefineCFunction(-1, \"$name\_init\", ejs_$name\_init, NULL, MPR_VAR_SCRIPT_HANDLE);");
$self->pidl("return NT_STATUS_OK;");
$self->deindent;
$self->pidl("}");
$self->pidl_hdr("\n");
$self->pidl_hdr("#endif /* _HEADER_EJS_$interface->{NAME} */\n");
}
#####################################################################
# parse a parsed IDL into a C header
sub Parse($$$)
{
my($self,$ndr,$hdr) = @_;
my $ejs_hdr = $hdr;
$ejs_hdr =~ s/.h$/_ejs.h/;
$self->pidl_hdr("/* header auto-generated by pidl */\n\n");
$self->pidl("
/* EJS wrapper functions auto-generated by pidl */
#include \"includes.h\"
#include \"librpc/rpc/dcerpc.h\"
#include \"lib/appweb/ejs/ejs.h\"
#include \"scripting/ejs/ejsrpc.h\"
#include \"scripting/ejs/smbcalls.h\"
#include \"librpc/gen_ndr/ndr_misc_ejs.h\"
#include \"$hdr\"
#include \"$ejs_hdr\"
");
my %needed = ();
foreach my $x (@{$ndr}) {
($x->{TYPE} eq "INTERFACE") && NeededInterface($x, \%needed);
}
foreach my $x (@$ndr) {
($x->{TYPE} eq "INTERFACE") && $self->EjsInterface($x, \%needed);
($x->{TYPE} eq "IMPORT") && $self->EjsImport(@{$x->{PATHS}});
}
return ($self->{res_hdr}, $self->{res});
}
sub NeededFunction($$)
{
my ($fn,$needed) = @_;
$needed->{"ejs_pull_$fn->{NAME}"} = 1;
$needed->{"ejs_push_$fn->{NAME}"} = 1;
foreach (@{$fn->{ELEMENTS}}) {
next if (has_property($_, "subcontext")); #FIXME: Support subcontexts
if (grep(/in/, @{$_->{DIRECTION}})) {
$needed->{TypeFunctionName("ejs_pull", $_->{TYPE})} = 1;
}
if (grep(/out/, @{$_->{DIRECTION}})) {
$needed->{TypeFunctionName("ejs_push", $_->{TYPE})} = 1;
}
}
}
sub NeededType($$$)
{
sub NeededType($$$);
my ($t,$needed,$req) = @_;
NeededType($t->{DATA}, $needed, $req) if ($t->{TYPE} eq "TYPEDEF");
return if (($t->{TYPE} ne "STRUCT") and
($t->{TYPE} ne "UNION"));
foreach (@{$t->{ELEMENTS}}) {
next if (has_property($_, "subcontext")); #FIXME: Support subcontexts
my $n;
if (ref($_->{TYPE}) ne "HASH" or defined($_->{TYPE}->{NAME})) {
$needed->{TypeFunctionName("ejs_$req", $_->{TYPE})} = 1;
}
NeededType($_->{TYPE}, $needed, $req) if (ref($_->{TYPE}) eq "HASH");
}
}
#####################################################################
# work out what parse functions are needed
sub NeededInterface($$)
{
my ($interface,$needed) = @_;
NeededFunction($_, $needed) foreach (@{$interface->{FUNCTIONS}});
foreach (reverse @{$interface->{TYPES}}) {
if (has_property($_, "public")) {
$needed->{TypeFunctionName("ejs_pull", $_)} = not has_property($_, "noejs");
$needed->{TypeFunctionName("ejs_push", $_)} = not has_property($_, "noejs");
}
NeededType($_, $needed, "pull") if ($needed->{TypeFunctionName("ejs_pull", $_)});
NeededType($_, $needed, "push") if ($needed->{TypeFunctionName("ejs_push", $_)});
}
}
sub TypeFunctionName($$)
{
my ($prefix, $t) = @_;
return "$prefix\_$t->{NAME}" if (ref($t) eq "HASH" and
($t->{TYPE} eq "TYPEDEF" or $t->{TYPE} eq "DECLARE"));
return "$prefix\_$t->{TYPE}_$t->{NAME}" if (ref($t) eq "HASH");
return "$prefix\_$t";
}
1;
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