diff options
Diffstat (limited to 'pidl/lib/Parse/Pidl/Samba4/EJS.pm')
| -rw-r--r-- | pidl/lib/Parse/Pidl/Samba4/EJS.pm | 874 |
1 files changed, 874 insertions, 0 deletions
diff --git a/pidl/lib/Parse/Pidl/Samba4/EJS.pm b/pidl/lib/Parse/Pidl/Samba4/EJS.pm new file mode 100644 index 0000000000..efb3f2858d --- /dev/null +++ b/pidl/lib/Parse/Pidl/Samba4/EJS.pm @@ -0,0 +1,874 @@ +################################################### +# 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 qw(typeHasBody); +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::Header 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($$) +{ + my ($self, $d) = @_; + return unless (defined($d->{ELEMENTS})); + my $v = 0; + foreach my $e (@{$d->{ELEMENTS}}) { + my $el = $e; + chomp $el; + if ($el =~ /^(.*)=\s*(.*)\s*$/) { + $el = $1; + $v = $2; + } + $self->{constants}->{$el} = $v; + $v++; + } +} + +########################### +# pull a enum +sub EjsEnumPull($$$) +{ + 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, $varname) = @_; + return unless (defined($d->{ELEMENTS})); + 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}}) { + next unless (typeHasBody($d)); + ($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 unless (($t->{TYPE} eq "STRUCT") or ($t->{TYPE} eq "UNION")); + + return unless(typeHasBody($t)); + + foreach (@{$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 + $t->{TYPE} eq "TYPEDEF"); + return "$prefix\_$t->{TYPE}_$t->{NAME}" if (ref($t) eq "HASH"); + return "$prefix\_$t"; +} + + + +1; |