feat: update custom marshaler in BMapSharp
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364
BMapBindings/BMapSharp/.editorconfig
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364
BMapBindings/BMapSharp/.editorconfig
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root = true
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# All files
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[*]
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indent_style = space
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# Xml files
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[*.xml]
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indent_size = 2
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# C# files
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[*.cs]
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#### Core EditorConfig Options ####
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|
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# Indentation and spacing
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||||
indent_size = 4
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tab_width = 4
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|
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# New line preferences
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||||
end_of_line = crlf
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insert_final_newline = false
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|
||||
#### .NET Coding Conventions ####
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[*.{cs,vb}]
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|
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# Organize usings
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dotnet_separate_import_directive_groups = false
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dotnet_sort_system_directives_first = false
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file_header_template = unset
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|
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# this. and Me. preferences
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dotnet_style_qualification_for_event = false:silent
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dotnet_style_qualification_for_field = false:silent
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dotnet_style_qualification_for_method = false:silent
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dotnet_style_qualification_for_property = false:silent
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# Language keywords vs BCL types preferences
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dotnet_style_predefined_type_for_locals_parameters_members = true:silent
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dotnet_style_predefined_type_for_member_access = true:silent
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# Parentheses preferences
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dotnet_style_parentheses_in_arithmetic_binary_operators = always_for_clarity:silent
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dotnet_style_parentheses_in_other_binary_operators = always_for_clarity:silent
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dotnet_style_parentheses_in_other_operators = never_if_unnecessary:silent
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dotnet_style_parentheses_in_relational_binary_operators = always_for_clarity:silent
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# Modifier preferences
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dotnet_style_require_accessibility_modifiers = for_non_interface_members:silent
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# Expression-level preferences
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dotnet_style_coalesce_expression = true:suggestion
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dotnet_style_collection_initializer = true:suggestion
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dotnet_style_explicit_tuple_names = true:suggestion
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dotnet_style_null_propagation = true:suggestion
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dotnet_style_object_initializer = true:suggestion
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dotnet_style_operator_placement_when_wrapping = beginning_of_line
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dotnet_style_prefer_auto_properties = true:suggestion
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dotnet_style_prefer_compound_assignment = true:suggestion
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dotnet_style_prefer_conditional_expression_over_assignment = true:suggestion
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dotnet_style_prefer_conditional_expression_over_return = true:suggestion
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dotnet_style_prefer_inferred_anonymous_type_member_names = true:suggestion
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dotnet_style_prefer_inferred_tuple_names = true:suggestion
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dotnet_style_prefer_is_null_check_over_reference_equality_method = true:suggestion
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dotnet_style_prefer_simplified_boolean_expressions = true:suggestion
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dotnet_style_prefer_simplified_interpolation = true:suggestion
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|
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# Field preferences
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dotnet_style_readonly_field = true:warning
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# Parameter preferences
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dotnet_code_quality_unused_parameters = all:suggestion
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|
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# Suppression preferences
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dotnet_remove_unnecessary_suppression_exclusions = none
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|
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#### C# Coding Conventions ####
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[*.cs]
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# var preferences
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csharp_style_var_elsewhere = false:silent
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csharp_style_var_for_built_in_types = false:silent
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csharp_style_var_when_type_is_apparent = false:silent
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# Expression-bodied members
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csharp_style_expression_bodied_accessors = true:silent
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csharp_style_expression_bodied_constructors = false:silent
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csharp_style_expression_bodied_indexers = true:silent
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csharp_style_expression_bodied_lambdas = true:suggestion
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csharp_style_expression_bodied_local_functions = false:silent
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csharp_style_expression_bodied_methods = false:silent
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csharp_style_expression_bodied_operators = false:silent
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csharp_style_expression_bodied_properties = true:silent
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# Pattern matching preferences
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csharp_style_pattern_matching_over_as_with_null_check = true:suggestion
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csharp_style_pattern_matching_over_is_with_cast_check = true:suggestion
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csharp_style_prefer_not_pattern = true:suggestion
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csharp_style_prefer_pattern_matching = true:silent
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csharp_style_prefer_switch_expression = true:suggestion
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# Null-checking preferences
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csharp_style_conditional_delegate_call = true:suggestion
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|
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# Modifier preferences
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csharp_prefer_static_local_function = true:warning
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csharp_preferred_modifier_order = public,private,protected,internal,static,extern,new,virtual,abstract,sealed,override,readonly,unsafe,volatile,async:silent
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# Code-block preferences
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csharp_prefer_braces = true:silent
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csharp_prefer_simple_using_statement = true:suggestion
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# Expression-level preferences
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csharp_prefer_simple_default_expression = true:suggestion
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csharp_style_deconstructed_variable_declaration = true:suggestion
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csharp_style_inlined_variable_declaration = true:suggestion
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csharp_style_pattern_local_over_anonymous_function = true:suggestion
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csharp_style_prefer_index_operator = true:suggestion
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csharp_style_prefer_range_operator = true:suggestion
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csharp_style_throw_expression = true:suggestion
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csharp_style_unused_value_assignment_preference = discard_variable:suggestion
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csharp_style_unused_value_expression_statement_preference = discard_variable:silent
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# 'using' directive preferences
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csharp_using_directive_placement = outside_namespace:silent
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#### C# Formatting Rules ####
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# New line preferences
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csharp_new_line_before_catch = false
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csharp_new_line_before_else = false
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csharp_new_line_before_finally = false
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csharp_new_line_before_members_in_anonymous_types = true
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csharp_new_line_before_members_in_object_initializers = true
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csharp_new_line_before_open_brace = none
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csharp_new_line_between_query_expression_clauses = true
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|
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# Indentation preferences
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csharp_indent_block_contents = true
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csharp_indent_braces = false
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csharp_indent_case_contents = true
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csharp_indent_case_contents_when_block = true
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csharp_indent_labels = one_less_than_current
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csharp_indent_switch_labels = true
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|
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# Space preferences
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csharp_space_after_cast = false
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csharp_space_after_colon_in_inheritance_clause = true
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csharp_space_after_comma = true
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csharp_space_after_dot = false
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csharp_space_after_keywords_in_control_flow_statements = true
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csharp_space_after_semicolon_in_for_statement = true
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csharp_space_around_binary_operators = before_and_after
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csharp_space_around_declaration_statements = false
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csharp_space_before_colon_in_inheritance_clause = true
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csharp_space_before_comma = false
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csharp_space_before_dot = false
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csharp_space_before_open_square_brackets = false
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csharp_space_before_semicolon_in_for_statement = false
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csharp_space_between_empty_square_brackets = false
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csharp_space_between_method_call_empty_parameter_list_parentheses = false
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csharp_space_between_method_call_name_and_opening_parenthesis = false
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csharp_space_between_method_call_parameter_list_parentheses = false
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csharp_space_between_method_declaration_empty_parameter_list_parentheses = false
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csharp_space_between_method_declaration_name_and_open_parenthesis = false
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csharp_space_between_method_declaration_parameter_list_parentheses = false
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csharp_space_between_parentheses = false
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csharp_space_between_square_brackets = false
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# Wrapping preferences
|
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csharp_preserve_single_line_blocks = true
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csharp_preserve_single_line_statements = true
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|
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#### Naming styles ####
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[*.{cs,vb}]
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|
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# Naming rules
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dotnet_naming_rule.types_and_namespaces_should_be_pascalcase.severity = suggestion
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dotnet_naming_rule.types_and_namespaces_should_be_pascalcase.symbols = types_and_namespaces
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dotnet_naming_rule.types_and_namespaces_should_be_pascalcase.style = pascalcase
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dotnet_naming_rule.interfaces_should_be_ipascalcase.severity = suggestion
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dotnet_naming_rule.interfaces_should_be_ipascalcase.symbols = interfaces
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dotnet_naming_rule.interfaces_should_be_ipascalcase.style = ipascalcase
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dotnet_naming_rule.type_parameters_should_be_tpascalcase.severity = suggestion
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dotnet_naming_rule.type_parameters_should_be_tpascalcase.symbols = type_parameters
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dotnet_naming_rule.type_parameters_should_be_tpascalcase.style = tpascalcase
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dotnet_naming_rule.methods_should_be_pascalcase.severity = suggestion
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dotnet_naming_rule.methods_should_be_pascalcase.symbols = methods
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dotnet_naming_rule.methods_should_be_pascalcase.style = pascalcase
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dotnet_naming_rule.properties_should_be_pascalcase.severity = suggestion
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dotnet_naming_rule.properties_should_be_pascalcase.symbols = properties
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dotnet_naming_rule.properties_should_be_pascalcase.style = pascalcase
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dotnet_naming_rule.events_should_be_pascalcase.severity = suggestion
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dotnet_naming_rule.events_should_be_pascalcase.symbols = events
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dotnet_naming_rule.events_should_be_pascalcase.style = pascalcase
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dotnet_naming_rule.local_variables_should_be_camelcase.severity = suggestion
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dotnet_naming_rule.local_variables_should_be_camelcase.symbols = local_variables
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dotnet_naming_rule.local_variables_should_be_camelcase.style = camelcase
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dotnet_naming_rule.local_constants_should_be_camelcase.severity = suggestion
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dotnet_naming_rule.local_constants_should_be_camelcase.symbols = local_constants
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dotnet_naming_rule.local_constants_should_be_camelcase.style = camelcase
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dotnet_naming_rule.parameters_should_be_camelcase.severity = suggestion
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dotnet_naming_rule.parameters_should_be_camelcase.symbols = parameters
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dotnet_naming_rule.parameters_should_be_camelcase.style = camelcase
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dotnet_naming_rule.public_fields_should_be_pascalcase.severity = suggestion
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dotnet_naming_rule.public_fields_should_be_pascalcase.symbols = public_fields
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dotnet_naming_rule.public_fields_should_be_pascalcase.style = pascalcase
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dotnet_naming_rule.private_fields_should_be__camelcase.severity = suggestion
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dotnet_naming_rule.private_fields_should_be__camelcase.symbols = private_fields
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dotnet_naming_rule.private_fields_should_be__camelcase.style = _camelcase
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dotnet_naming_rule.private_static_fields_should_be_s_camelcase.severity = suggestion
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dotnet_naming_rule.private_static_fields_should_be_s_camelcase.symbols = private_static_fields
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dotnet_naming_rule.private_static_fields_should_be_s_camelcase.style = s_camelcase
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dotnet_naming_rule.public_constant_fields_should_be_pascalcase.severity = suggestion
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dotnet_naming_rule.public_constant_fields_should_be_pascalcase.symbols = public_constant_fields
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dotnet_naming_rule.public_constant_fields_should_be_pascalcase.style = pascalcase
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dotnet_naming_rule.private_constant_fields_should_be_pascalcase.severity = suggestion
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dotnet_naming_rule.private_constant_fields_should_be_pascalcase.symbols = private_constant_fields
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dotnet_naming_rule.private_constant_fields_should_be_pascalcase.style = pascalcase
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dotnet_naming_rule.public_static_readonly_fields_should_be_pascalcase.severity = suggestion
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dotnet_naming_rule.public_static_readonly_fields_should_be_pascalcase.symbols = public_static_readonly_fields
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dotnet_naming_rule.public_static_readonly_fields_should_be_pascalcase.style = pascalcase
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dotnet_naming_rule.private_static_readonly_fields_should_be_pascalcase.severity = suggestion
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dotnet_naming_rule.private_static_readonly_fields_should_be_pascalcase.symbols = private_static_readonly_fields
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dotnet_naming_rule.private_static_readonly_fields_should_be_pascalcase.style = pascalcase
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dotnet_naming_rule.enums_should_be_pascalcase.severity = suggestion
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dotnet_naming_rule.enums_should_be_pascalcase.symbols = enums
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dotnet_naming_rule.enums_should_be_pascalcase.style = pascalcase
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dotnet_naming_rule.local_functions_should_be_pascalcase.severity = suggestion
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dotnet_naming_rule.local_functions_should_be_pascalcase.symbols = local_functions
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dotnet_naming_rule.local_functions_should_be_pascalcase.style = pascalcase
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dotnet_naming_rule.non_field_members_should_be_pascalcase.severity = suggestion
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dotnet_naming_rule.non_field_members_should_be_pascalcase.symbols = non_field_members
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dotnet_naming_rule.non_field_members_should_be_pascalcase.style = pascalcase
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# Symbol specifications
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dotnet_naming_symbols.interfaces.applicable_kinds = interface
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dotnet_naming_symbols.interfaces.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
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dotnet_naming_symbols.interfaces.required_modifiers =
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dotnet_naming_symbols.enums.applicable_kinds = enum
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dotnet_naming_symbols.enums.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
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dotnet_naming_symbols.enums.required_modifiers =
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dotnet_naming_symbols.events.applicable_kinds = event
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dotnet_naming_symbols.events.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
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dotnet_naming_symbols.events.required_modifiers =
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dotnet_naming_symbols.methods.applicable_kinds = method
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dotnet_naming_symbols.methods.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
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dotnet_naming_symbols.methods.required_modifiers =
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dotnet_naming_symbols.properties.applicable_kinds = property
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dotnet_naming_symbols.properties.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
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dotnet_naming_symbols.properties.required_modifiers =
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dotnet_naming_symbols.public_fields.applicable_kinds = field
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dotnet_naming_symbols.public_fields.applicable_accessibilities = public, internal
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dotnet_naming_symbols.public_fields.required_modifiers =
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dotnet_naming_symbols.private_fields.applicable_kinds = field
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dotnet_naming_symbols.private_fields.applicable_accessibilities = private, protected, protected_internal, private_protected
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dotnet_naming_symbols.private_fields.required_modifiers =
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dotnet_naming_symbols.private_static_fields.applicable_kinds = field
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dotnet_naming_symbols.private_static_fields.applicable_accessibilities = private, protected, protected_internal, private_protected
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dotnet_naming_symbols.private_static_fields.required_modifiers = static
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dotnet_naming_symbols.types_and_namespaces.applicable_kinds = namespace, class, struct, interface, enum
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dotnet_naming_symbols.types_and_namespaces.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
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dotnet_naming_symbols.types_and_namespaces.required_modifiers =
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dotnet_naming_symbols.non_field_members.applicable_kinds = property, event, method
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dotnet_naming_symbols.non_field_members.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
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dotnet_naming_symbols.non_field_members.required_modifiers =
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dotnet_naming_symbols.type_parameters.applicable_kinds = namespace
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dotnet_naming_symbols.type_parameters.applicable_accessibilities = *
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dotnet_naming_symbols.type_parameters.required_modifiers =
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dotnet_naming_symbols.private_constant_fields.applicable_kinds = field
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dotnet_naming_symbols.private_constant_fields.applicable_accessibilities = private, protected, protected_internal, private_protected
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dotnet_naming_symbols.private_constant_fields.required_modifiers = const
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dotnet_naming_symbols.local_variables.applicable_kinds = local
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dotnet_naming_symbols.local_variables.applicable_accessibilities = local
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dotnet_naming_symbols.local_variables.required_modifiers =
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dotnet_naming_symbols.local_constants.applicable_kinds = local
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dotnet_naming_symbols.local_constants.applicable_accessibilities = local
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dotnet_naming_symbols.local_constants.required_modifiers = const
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dotnet_naming_symbols.parameters.applicable_kinds = parameter
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dotnet_naming_symbols.parameters.applicable_accessibilities = *
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dotnet_naming_symbols.parameters.required_modifiers =
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dotnet_naming_symbols.public_constant_fields.applicable_kinds = field
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dotnet_naming_symbols.public_constant_fields.applicable_accessibilities = public, internal
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dotnet_naming_symbols.public_constant_fields.required_modifiers = const
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dotnet_naming_symbols.public_static_readonly_fields.applicable_kinds = field
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dotnet_naming_symbols.public_static_readonly_fields.applicable_accessibilities = public, internal
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dotnet_naming_symbols.public_static_readonly_fields.required_modifiers = readonly, static
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dotnet_naming_symbols.private_static_readonly_fields.applicable_kinds = field
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dotnet_naming_symbols.private_static_readonly_fields.applicable_accessibilities = private, protected, protected_internal, private_protected
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dotnet_naming_symbols.private_static_readonly_fields.required_modifiers = readonly, static
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dotnet_naming_symbols.local_functions.applicable_kinds = local_function
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dotnet_naming_symbols.local_functions.applicable_accessibilities = *
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dotnet_naming_symbols.local_functions.required_modifiers =
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# Naming styles
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dotnet_naming_style.pascalcase.required_prefix =
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dotnet_naming_style.pascalcase.required_suffix =
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dotnet_naming_style.pascalcase.word_separator =
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dotnet_naming_style.pascalcase.capitalization = pascal_case
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dotnet_naming_style.ipascalcase.required_prefix = I
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dotnet_naming_style.ipascalcase.required_suffix =
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dotnet_naming_style.ipascalcase.word_separator =
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dotnet_naming_style.ipascalcase.capitalization = pascal_case
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dotnet_naming_style.tpascalcase.required_prefix = T
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dotnet_naming_style.tpascalcase.required_suffix =
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dotnet_naming_style.tpascalcase.word_separator =
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dotnet_naming_style.tpascalcase.capitalization = pascal_case
|
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|
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dotnet_naming_style._camelcase.required_prefix = _
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dotnet_naming_style._camelcase.required_suffix =
|
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dotnet_naming_style._camelcase.word_separator =
|
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dotnet_naming_style._camelcase.capitalization = camel_case
|
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|
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dotnet_naming_style.camelcase.required_prefix =
|
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dotnet_naming_style.camelcase.required_suffix =
|
||||
dotnet_naming_style.camelcase.word_separator =
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dotnet_naming_style.camelcase.capitalization = camel_case
|
||||
|
||||
dotnet_naming_style.s_camelcase.required_prefix = s_
|
||||
dotnet_naming_style.s_camelcase.required_suffix =
|
||||
dotnet_naming_style.s_camelcase.word_separator =
|
||||
dotnet_naming_style.s_camelcase.capitalization = camel_case
|
||||
|
||||
|
|
@ -23,8 +23,8 @@ namespace BMapSharp {
|
|||
/// <param name="msg">The message content need to be printed.</param>
|
||||
public delegate void OutputCallback([In, MarshalAs(UnmanagedType.LPUTF8Str)] string msg);
|
||||
|
||||
/// <summary>The custom marshaler for BMap string array.</summary>
|
||||
public class BMStringArrayMarshaler : ICustomMarshaler {
|
||||
#region Custom Marshalers
|
||||
|
||||
// References:
|
||||
// https://stackoverflow.com/questions/18498452/how-do-i-write-a-custom-marshaler-which-allows-data-to-flow-from-native-to-manag
|
||||
// https://learn.microsoft.com/en-us/dotnet/fundamentals/runtime-libraries/system-runtime-interopservices-icustommarshaler
|
||||
|
|
@ -33,6 +33,8 @@ namespace BMapSharp {
|
|||
// Because my binding do not have In, Out parameter. All parameters are In OR Out.
|
||||
// So there is no reason to keep that member.
|
||||
|
||||
/// <summary>The custom marshaler for BMap string array.</summary>
|
||||
public class BMStringArrayMarshaler : ICustomMarshaler {
|
||||
private static readonly BMStringArrayMarshaler g_Instance = new BMStringArrayMarshaler();
|
||||
public static ICustomMarshaler GetInstance(string pstrCookie) => g_Instance;
|
||||
|
||||
|
|
@ -48,13 +50,9 @@ namespace BMapSharp {
|
|||
// So the pointer put in array is not the address we allocated, it has an offset.
|
||||
// Also we return native pointer is not the address we allocated, it also has an offset.
|
||||
|
||||
private static readonly int szLengthHeaderSize = Marshal.SizeOf<int>();
|
||||
private static readonly int szArrayItemSize = Marshal.SizeOf<IntPtr>();
|
||||
private static readonly int szStringItemSize = Marshal.SizeOf<byte>();
|
||||
|
||||
public IntPtr MarshalManagedToNative(object ManagedObj) {
|
||||
public nint MarshalManagedToNative(object ManagedObj) {
|
||||
// Check nullptr object.
|
||||
if (ManagedObj is null) return IntPtr.Zero;
|
||||
if (ManagedObj is null) return nint.Zero;
|
||||
// Check argument type.
|
||||
string[] castManagedObj = ManagedObj as string[];
|
||||
if (castManagedObj is null)
|
||||
|
|
@ -62,97 +60,73 @@ namespace BMapSharp {
|
|||
|
||||
// Allocate string items first
|
||||
int szArrayItemCount = castManagedObj.Length;
|
||||
IntPtr[] apStrings = new IntPtr[szArrayItemCount];
|
||||
int szArrayItemSize = Marshal.SizeOf<nint>();
|
||||
nint[] apString = new nint[szArrayItemCount];
|
||||
for (int i = 0; i < szArrayItemCount; ++i) {
|
||||
// Encode string first.
|
||||
byte[] encString = Encoding.UTF8.GetBytes(castManagedObj[i]);
|
||||
// Allocate string memory with extra NULL terminal.
|
||||
int szStringItemCount = encString.Length;
|
||||
IntPtr pString = Marshal.AllocHGlobal(szStringItemSize * (szStringItemCount + 1) + szLengthHeaderSize);
|
||||
// Setup length field
|
||||
Marshal.WriteInt32(pString, 0, szStringItemCount);
|
||||
// Copy string data with offset.
|
||||
IntPtr pFakeString = pString + szLengthHeaderSize;
|
||||
Marshal.Copy(encString, 0, pFakeString, szStringItemCount);
|
||||
// Set NULL terminal.
|
||||
Marshal.WriteByte(pFakeString, szStringItemSize * szStringItemCount, 0);
|
||||
// Set item in string pointer
|
||||
apStrings[i] = pFakeString;
|
||||
// Check null string
|
||||
string stringObj = castManagedObj[i];
|
||||
if (stringObj is null) apString[i] = nint.Zero;
|
||||
else apString[i] = BMStringMarshaler.ToNative(stringObj);
|
||||
}
|
||||
|
||||
// Allocate array pointer now.
|
||||
IntPtr pArray = Marshal.AllocHGlobal(szArrayItemSize * szArrayItemCount + szLengthHeaderSize);
|
||||
// Setup length field
|
||||
Marshal.WriteInt32(pArray, 0, szArrayItemCount);
|
||||
// Copy string pointer data with offset.
|
||||
IntPtr pFakeArray = pArray + szLengthHeaderSize;
|
||||
Marshal.Copy(apStrings, 0, pFakeArray, szArrayItemCount);
|
||||
nint pArray = Marshal.AllocHGlobal(szArrayItemSize * (szArrayItemCount + 1));
|
||||
// Copy string pointer data
|
||||
Marshal.Copy(apString, 0, pArray, szArrayItemSize * szArrayItemCount);
|
||||
// Setup NULL ternimal
|
||||
Marshal.WriteIntPtr(pArray + (szArrayItemSize * szArrayItemCount), nint.Zero);
|
||||
|
||||
// Return value
|
||||
return pFakeArray;
|
||||
return pArray;
|
||||
}
|
||||
|
||||
public object MarshalNativeToManaged(IntPtr pNativeData) {
|
||||
public object MarshalNativeToManaged(nint pNativeData) {
|
||||
// Check nullptr
|
||||
if (pNativeData == IntPtr.Zero) return null;
|
||||
if (pNativeData == nint.Zero) return null;
|
||||
|
||||
// Get real array pointer
|
||||
IntPtr pFakeArray = pNativeData;
|
||||
IntPtr pArray = pFakeArray - szLengthHeaderSize;
|
||||
|
||||
// Get the count of array and read string pointers
|
||||
int szArrayItemCount = Marshal.ReadInt32(pArray, 0);
|
||||
IntPtr[] apStrings = new IntPtr[szArrayItemCount];
|
||||
Marshal.Copy(pFakeArray, apStrings, 0, szArrayItemCount);
|
||||
// Get the length of array
|
||||
int szArrayItemCount = BMStringArrayMarshaler.GetArrayLength(pNativeData);
|
||||
int szArrayItemSize = Marshal.SizeOf<nint>();
|
||||
// Prepare array cache and read it.
|
||||
nint[] apString = new nint[szArrayItemCount];
|
||||
Marshal.Copy(pNativeData, apString, 0, szArrayItemSize * szArrayItemCount);
|
||||
|
||||
// Iterate the array and process each string one by one.
|
||||
string[] ret = new string[szArrayItemCount];
|
||||
for (int i = 0; i < szArrayItemCount; ++i) {
|
||||
// Get string pointer
|
||||
IntPtr pFakeString = apStrings[i];
|
||||
if (pFakeString == IntPtr.Zero) {
|
||||
nint pString = apString[i];
|
||||
if (pString == nint.Zero) {
|
||||
ret[i] = null;
|
||||
continue;
|
||||
}
|
||||
IntPtr pString = pFakeString - szLengthHeaderSize;
|
||||
// Read string length
|
||||
int szStringItemCount = Marshal.ReadInt32(pString, 0);
|
||||
// Read string body
|
||||
byte[] encString = new byte[szStringItemCount];
|
||||
Marshal.Copy(pFakeString, encString, 0, szStringItemCount);
|
||||
// Decode string with UTF8
|
||||
ret[i] = Encoding.UTF8.GetString(encString);
|
||||
// Extract string
|
||||
ret[i] = BMStringMarshaler.ToManaged(pString);
|
||||
}
|
||||
|
||||
// Return result
|
||||
return ret;
|
||||
}
|
||||
|
||||
public void CleanUpNativeData(IntPtr pNativeData) {
|
||||
public void CleanUpNativeData(nint pNativeData) {
|
||||
// Check nullptr
|
||||
if (pNativeData == IntPtr.Zero) return;
|
||||
if (pNativeData == nint.Zero) return;
|
||||
|
||||
// Get real array pointer
|
||||
IntPtr pFakeArray = pNativeData;
|
||||
IntPtr pArray = pFakeArray - szLengthHeaderSize;
|
||||
// Get the length of array
|
||||
int szArrayItemCount = BMStringArrayMarshaler.GetArrayLength(pNativeData);
|
||||
int szArrayItemSize = Marshal.SizeOf<nint>();
|
||||
// Prepare array cache and read it.
|
||||
nint[] apString = new nint[szArrayItemCount];
|
||||
Marshal.Copy(pNativeData, apString, 0, szArrayItemSize * szArrayItemCount);
|
||||
// Free array self
|
||||
Marshal.FreeHGlobal(pNativeData);
|
||||
|
||||
// Get the count of array and read string pointers
|
||||
int szArrayItemCount = Marshal.ReadInt32(pArray, 0);
|
||||
IntPtr[] apStrings = new IntPtr[szArrayItemCount];
|
||||
Marshal.Copy(pFakeArray, apStrings, 0, szArrayItemCount);
|
||||
|
||||
// Iterate the array and free them one by one.
|
||||
for (int i = 0; i < szArrayItemCount; ++i) {
|
||||
// Get string pointer
|
||||
IntPtr pFakeString = apStrings[i];
|
||||
if (pFakeString == IntPtr.Zero) continue;
|
||||
IntPtr pString = pFakeString - szLengthHeaderSize;
|
||||
// Iterate the string pointer array and free them one by one.
|
||||
foreach (nint pString in apString) {
|
||||
// Free string pointer
|
||||
if (pString == nint.Zero) continue;
|
||||
Marshal.FreeHGlobal(pString);
|
||||
}
|
||||
|
||||
// Free array self
|
||||
Marshal.FreeHGlobal(pArray);
|
||||
}
|
||||
|
||||
public void CleanUpManagedData(object ManagedObj) {
|
||||
|
|
@ -164,7 +138,111 @@ namespace BMapSharp {
|
|||
return -1;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Return the length of array created by this marshaler.
|
||||
/// </summary>
|
||||
/// <param name="ptr">The pointer to array for checking.</param>
|
||||
/// <returns>The length of array (NULL terminal exclusive).</returns>
|
||||
internal static int GetArrayLength(nint ptr) {
|
||||
int count = 0, unit = Marshal.SizeOf<nint>();
|
||||
while (Marshal.ReadIntPtr(ptr) != nint.Zero) {
|
||||
ptr += unit;
|
||||
++count;
|
||||
}
|
||||
return count;
|
||||
}
|
||||
}
|
||||
|
||||
public class BMStringMarshaler : ICustomMarshaler {
|
||||
private static readonly BMStringMarshaler g_Instance = new BMStringMarshaler();
|
||||
public static ICustomMarshaler GetInstance(string pstrCookie) => g_Instance;
|
||||
|
||||
public nint MarshalManagedToNative(object ManagedObj) {
|
||||
// Check requirements.
|
||||
if (ManagedObj is null) return nint.Zero;
|
||||
string castManagedObj = ManagedObj as string;
|
||||
if (castManagedObj is null)
|
||||
throw new MarshalDirectiveException("BMStringMarshaler must be used on a string.");
|
||||
// Call self
|
||||
return BMStringMarshaler.ToNative(castManagedObj);
|
||||
}
|
||||
|
||||
public object MarshalNativeToManaged(nint pNativeData) {
|
||||
// Check nullptr
|
||||
if (pNativeData == nint.Zero) return null;
|
||||
// Call self
|
||||
return BMStringMarshaler.ToManaged(pNativeData);
|
||||
}
|
||||
|
||||
public void CleanUpNativeData(nint pNativeData) {
|
||||
// Check nullptr
|
||||
if (pNativeData == nint.Zero) return;
|
||||
// Free native pointer
|
||||
Marshal.FreeHGlobal(pNativeData);
|
||||
}
|
||||
|
||||
public void CleanUpManagedData(object ManagedObj) {
|
||||
// Do nothing, because managed data do not need any clean up.
|
||||
}
|
||||
|
||||
public int GetNativeDataSize() {
|
||||
// Return -1 to indicate the managed type this marshaler handles is not a value type.
|
||||
return -1;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Return the length in byte of given pointer represented C style string.
|
||||
/// </summary>
|
||||
/// <param name="ptr">The pointer for checking.</param>
|
||||
/// <returns>The length of C style string (NUL exclusive).</returns>
|
||||
internal static int GetCStringLength(nint ptr) {
|
||||
int count = 0, unit = Marshal.SizeOf<byte>();
|
||||
while (Marshal.ReadByte(ptr) != (byte)0) {
|
||||
ptr += unit;
|
||||
++count;
|
||||
}
|
||||
return count;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Convert given string object to native data.
|
||||
/// This function is shared by 2 marshalers.
|
||||
/// </summary>
|
||||
/// <param name="obj">String object. Caller must make sure this object is not null.</param>
|
||||
/// <returns>The created native data pointer.</returns>
|
||||
internal static nint ToNative(string obj) {
|
||||
// Encode string first
|
||||
byte[] encString = Encoding.UTF8.GetBytes(obj);
|
||||
// Allocate string memory with extra NUL.
|
||||
int szStringItemCount = encString.Length;
|
||||
int szStringItemSize = Marshal.SizeOf<byte>();
|
||||
nint pString = Marshal.AllocHGlobal(szStringItemSize * (szStringItemCount + 1));
|
||||
// Copy encoded string data
|
||||
Marshal.Copy(encString, 0, pString, szStringItemSize * szStringItemCount);
|
||||
// Setup NUL
|
||||
Marshal.WriteByte(pString + (szStringItemSize * szStringItemCount), (byte)0);
|
||||
// Return value
|
||||
return pString;
|
||||
}
|
||||
/// <summary>
|
||||
/// Extract managed string from given native pointer holding C style string data.
|
||||
/// This function is shared by 2 marshalers.
|
||||
/// </summary>
|
||||
/// <param name="ptr">Native pointer holding string data. Caller must make sure this pointer is not nullptr.</param>
|
||||
/// <returns>The extracted managed string data.</returns>
|
||||
internal static string ToManaged(nint ptr) {
|
||||
// Get the length of given string.
|
||||
int szStringItemCount = BMStringMarshaler.GetCStringLength(ptr);
|
||||
int szStringItemSize = Marshal.SizeOf<byte>();
|
||||
// Prepare cache and copy string data
|
||||
byte[] encString = new byte[szStringItemCount];
|
||||
Marshal.Copy(ptr, encString, 0, szStringItemSize * szStringItemCount);
|
||||
// Decode string and return
|
||||
return Encoding.UTF8.GetString(encString);
|
||||
}
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
// Decide the file name of loaded DLL.
|
||||
|
||||
|
|
|
|||
|
|
@ -4,7 +4,6 @@
|
|||
<OutputType>Exe</OutputType>
|
||||
<TargetFramework>net8.0</TargetFramework>
|
||||
<ImplicitUsings>enable</ImplicitUsings>
|
||||
<Nullable>enable</Nullable>
|
||||
</PropertyGroup>
|
||||
|
||||
</Project>
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user