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Merge pull request #91166 from raulsntos/gdextension/loader 

GDExtension: Implement `GDExtensionLoader` concept
This commit is contained in:
Rémi Verschelde 2024-08-26 10:51:21 +02:00
parent b4f268fae8 4dd6e8eca5
commit 04f6321ecc
No known key found for this signature in database
GPG Key ID: C3336907360768E1
9 changed files with 584 additions and 347 deletions
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357
core/extension/gdextension.cpp
View File

@ -32,11 +32,9 @@
#include "gdextension.compat.inc"
#include "core/config/project_settings.h"
#include "core/io/dir_access.h"
#include "core/object/class_db.h"
#include "core/object/method_bind.h"
#include "core/os/os.h"
#include "core/version.h"
#include "gdextension_library_loader.h"
#include "gdextension_manager.h"
extern void gdextension_setup_interface();
@ -48,146 +46,6 @@ String GDExtension::get_extension_list_config_file() {
return ProjectSettings::get_singleton()->get_project_data_path().path_join("extension_list.cfg");
}
Vector<SharedObject> GDExtension::find_extension_dependencies(const String &p_path, Ref<ConfigFile> p_config, std::function<bool(String)> p_has_feature) {
Vector<SharedObject> dependencies_shared_objects;
if (p_config->has_section("dependencies")) {
List<String> config_dependencies;
p_config->get_section_keys("dependencies", &config_dependencies);
for (const String &dependency : config_dependencies) {
Vector<String> dependency_tags = dependency.split(".");
bool all_tags_met = true;
for (int i = 0; i < dependency_tags.size(); i++) {
String tag = dependency_tags[i].strip_edges();
if (!p_has_feature(tag)) {
all_tags_met = false;
break;
}
}
if (all_tags_met) {
Dictionary dependency_value = p_config->get_value("dependencies", dependency);
for (const Variant *key = dependency_value.next(nullptr); key; key = dependency_value.next(key)) {
String dependency_path = *key;
String target_path = dependency_value[*key];
if (dependency_path.is_relative_path()) {
dependency_path = p_path.get_base_dir().path_join(dependency_path);
}
dependencies_shared_objects.push_back(SharedObject(dependency_path, dependency_tags, target_path));
}
break;
}
}
}
return dependencies_shared_objects;
}
String GDExtension::find_extension_library(const String &p_path, Ref<ConfigFile> p_config, std::function<bool(String)> p_has_feature, PackedStringArray *r_tags) {
// First, check the explicit libraries.
if (p_config->has_section("libraries")) {
List<String> libraries;
p_config->get_section_keys("libraries", &libraries);
// Iterate the libraries, finding the best matching tags.
String best_library_path;
Vector<String> best_library_tags;
for (const String &E : libraries) {
Vector<String> tags = E.split(".");
bool all_tags_met = true;
for (int i = 0; i < tags.size(); i++) {
String tag = tags[i].strip_edges();
if (!p_has_feature(tag)) {
all_tags_met = false;
break;
}
}
if (all_tags_met && tags.size() > best_library_tags.size()) {
best_library_path = p_config->get_value("libraries", E);
best_library_tags = tags;
}
}
if (!best_library_path.is_empty()) {
if (best_library_path.is_relative_path()) {
best_library_path = p_path.get_base_dir().path_join(best_library_path);
}
if (r_tags != nullptr) {
r_tags->append_array(best_library_tags);
}
return best_library_path;
}
}
// Second, try to autodetect
String autodetect_library_prefix;
if (p_config->has_section_key("configuration", "autodetect_library_prefix")) {
autodetect_library_prefix = p_config->get_value("configuration", "autodetect_library_prefix");
}
if (!autodetect_library_prefix.is_empty()) {
String autodetect_path = autodetect_library_prefix;
if (autodetect_path.is_relative_path()) {
autodetect_path = p_path.get_base_dir().path_join(autodetect_path);
}
// Find the folder and file parts of the prefix.
String folder;
String file_prefix;
if (DirAccess::dir_exists_absolute(autodetect_path)) {
folder = autodetect_path;
} else if (DirAccess::dir_exists_absolute(autodetect_path.get_base_dir())) {
folder = autodetect_path.get_base_dir();
file_prefix = autodetect_path.get_file();
} else {
ERR_FAIL_V_MSG(String(), vformat("Error in extension: %s. Could not find folder for automatic detection of libraries files. autodetect_library_prefix=\"%s\"", p_path, autodetect_library_prefix));
}
// Open the folder.
Ref<DirAccess> dir = DirAccess::open(folder);
ERR_FAIL_COND_V_MSG(!dir.is_valid(), String(), vformat("Error in extension: %s. Could not open folder for automatic detection of libraries files. autodetect_library_prefix=\"%s\"", p_path, autodetect_library_prefix));
// Iterate the files and check the prefixes, finding the best matching file.
String best_file;
Vector<String> best_file_tags;
dir->list_dir_begin();
String file_name = dir->_get_next();
while (file_name != "") {
if (!dir->current_is_dir() && file_name.begins_with(file_prefix)) {
// Check if the files matches all requested feature tags.
String tags_str = file_name.trim_prefix(file_prefix);
tags_str = tags_str.trim_suffix(tags_str.get_extension());
Vector<String> tags = tags_str.split(".", false);
bool all_tags_met = true;
for (int i = 0; i < tags.size(); i++) {
String tag = tags[i].strip_edges();
if (!p_has_feature(tag)) {
all_tags_met = false;
break;
}
}
// If all tags are found in the feature list, and we found more tags than before, use this file.
if (all_tags_met && tags.size() > best_file_tags.size()) {
best_file_tags = tags;
best_file = file_name;
}
}
file_name = dir->_get_next();
}
if (!best_file.is_empty()) {
String library_path = folder.path_join(best_file);
if (r_tags != nullptr) {
r_tags->append_array(best_file_tags);
}
return library_path;
}
}
return String();
}
class GDExtensionMethodBind : public MethodBind {
GDExtensionClassMethodCall call_func;
GDExtensionClassMethodValidatedCall validated_call_func;
@ -794,7 +652,13 @@ void GDExtension::_unregister_extension_class(GDExtensionClassLibraryPtr p_libra
void GDExtension::_get_library_path(GDExtensionClassLibraryPtr p_library, GDExtensionUninitializedStringPtr r_path) {
GDExtension *self = reinterpret_cast<GDExtension *>(p_library);
memnew_placement(r_path, String(self->library_path));
Ref<GDExtensionLibraryLoader> library_loader = self->loader;
String library_path;
if (library_loader.is_valid()) {
library_path = library_loader->library_path;
}
memnew_placement(r_path, String(library_path));
}
HashMap<StringName, GDExtensionInterfaceFunctionPtr> GDExtension::gdextension_interface_functions;
@ -810,55 +674,34 @@ GDExtensionInterfaceFunctionPtr GDExtension::get_interface_function(const String
return *function;
}
Error GDExtension::open_library(const String &p_path, const String &p_entry_symbol, Vector<SharedObject> *p_dependencies) {
Error GDExtension::open_library(const String &p_path, const Ref<GDExtensionLoader> &p_loader) {
ERR_FAIL_NULL_V_MSG(p_loader, FAILED, "Can't open GDExtension without a loader.");
loader = p_loader;
String abs_path = ProjectSettings::get_singleton()->globalize_path(p_path);
Vector<String> abs_dependencies_paths;
if (p_dependencies != nullptr && !p_dependencies->is_empty()) {
for (const SharedObject &dependency : *p_dependencies) {
abs_dependencies_paths.push_back(ProjectSettings::get_singleton()->globalize_path(dependency.path));
}
}
OS::GDExtensionData data = {
true, // also_set_library_path
&library_path, // r_resolved_path
Engine::get_singleton()->is_editor_hint(), // generate_temp_files
&abs_dependencies_paths, // library_dependencies
};
Error err = OS::get_singleton()->open_dynamic_library(abs_path, library, &data);
Error err = loader->open_library(abs_path);
ERR_FAIL_COND_V_MSG(err == ERR_FILE_NOT_FOUND, err, "GDExtension dynamic library not found: " + abs_path);
ERR_FAIL_COND_V_MSG(err != OK, err, "Can't open GDExtension dynamic library: " + abs_path);
void *entry_funcptr = nullptr;
err = OS::get_singleton()->get_dynamic_library_symbol_handle(library, p_entry_symbol, entry_funcptr, false);
err = loader->initialize(&gdextension_get_proc_address, this, &initialization);
if (err != OK) {
ERR_PRINT("GDExtension entry point '" + p_entry_symbol + "' not found in library " + abs_path);
OS::get_singleton()->close_dynamic_library(library);
// Errors already logged in initialize().
loader->close_library();
return err;
}
GDExtensionInitializationFunction initialization_function = (GDExtensionInitializationFunction)entry_funcptr;
GDExtensionBool ret = initialization_function(&gdextension_get_proc_address, this, &initialization);
level_initialized = -1;
if (ret) {
level_initialized = -1;
return OK;
} else {
ERR_PRINT("GDExtension initialization function '" + p_entry_symbol + "' returned an error.");
OS::get_singleton()->close_dynamic_library(library);
return FAILED;
}
return OK;
}
void GDExtension::close_library() {
ERR_FAIL_NULL(library);
OS::get_singleton()->close_dynamic_library(library);
ERR_FAIL_COND(!is_library_open());
loader->close_library();
library = nullptr;
class_icon_paths.clear();
#ifdef TOOLS_ENABLED
@ -867,16 +710,16 @@ void GDExtension::close_library() {
}
bool GDExtension::is_library_open() const {
return library != nullptr;
return loader.is_valid() && loader->is_library_open();
}
GDExtension::InitializationLevel GDExtension::get_minimum_library_initialization_level() const {
ERR_FAIL_NULL_V(library, INITIALIZATION_LEVEL_CORE);
ERR_FAIL_COND_V(!is_library_open(), INITIALIZATION_LEVEL_CORE);
return InitializationLevel(initialization.minimum_initialization_level);
}
void GDExtension::initialize_library(InitializationLevel p_level) {
ERR_FAIL_NULL(library);
ERR_FAIL_COND(!is_library_open());
ERR_FAIL_COND_MSG(p_level <= int32_t(level_initialized), vformat("Level '%d' must be higher than the current level '%d'", p_level, level_initialized));
level_initialized = int32_t(p_level);
@ -886,7 +729,7 @@ void GDExtension::initialize_library(InitializationLevel p_level) {
initialization.initialize(initialization.userdata, GDExtensionInitializationLevel(p_level));
}
void GDExtension::deinitialize_library(InitializationLevel p_level) {
ERR_FAIL_NULL(library);
ERR_FAIL_COND(!is_library_open());
ERR_FAIL_COND(p_level > int32_t(level_initialized));
level_initialized = int32_t(p_level) - 1;
@ -910,7 +753,7 @@ GDExtension::GDExtension() {
}
GDExtension::~GDExtension() {
if (library != nullptr) {
if (is_library_open()) {
close_library();
}
#ifdef TOOLS_ENABLED
@ -949,142 +792,15 @@ void GDExtension::finalize_gdextensions() {
Error GDExtensionResourceLoader::load_gdextension_resource(const String &p_path, Ref<GDExtension> &p_extension) {
ERR_FAIL_COND_V_MSG(p_extension.is_valid() && p_extension->is_library_open(), ERR_ALREADY_IN_USE, "Cannot load GDExtension resource into already opened library.");
Ref<ConfigFile> config;
config.instantiate();
GDExtensionManager *extension_manager = GDExtensionManager::get_singleton();
Error err = config->load(p_path);
if (err != OK) {
ERR_PRINT("Error loading GDExtension configuration file: " + p_path);
return err;
}
if (!config->has_section_key("configuration", "entry_symbol")) {
ERR_PRINT("GDExtension configuration file must contain a \"configuration/entry_symbol\" key: " + p_path);
return ERR_INVALID_DATA;
}
String entry_symbol = config->get_value("configuration", "entry_symbol");
uint32_t compatibility_minimum[3] = { 0, 0, 0 };
if (config->has_section_key("configuration", "compatibility_minimum")) {
String compat_string = config->get_value("configuration", "compatibility_minimum");
Vector<int> parts = compat_string.split_ints(".");
for (int i = 0; i < parts.size(); i++) {
if (i >= 3) {
break;
}
if (parts[i] >= 0) {
compatibility_minimum[i] = parts[i];
}
}
} else {
ERR_PRINT("GDExtension configuration file must contain a \"configuration/compatibility_minimum\" key: " + p_path);
return ERR_INVALID_DATA;
}
if (compatibility_minimum[0] < 4 || (compatibility_minimum[0] == 4 && compatibility_minimum[1] == 0)) {
ERR_PRINT(vformat("GDExtension's compatibility_minimum (%d.%d.%d) must be at least 4.1.0: %s", compatibility_minimum[0], compatibility_minimum[1], compatibility_minimum[2], p_path));
return ERR_INVALID_DATA;
}
bool compatible = true;
// Check version lexicographically.
if (VERSION_MAJOR != compatibility_minimum[0]) {
compatible = VERSION_MAJOR > compatibility_minimum[0];
} else if (VERSION_MINOR != compatibility_minimum[1]) {
compatible = VERSION_MINOR > compatibility_minimum[1];
} else {
compatible = VERSION_PATCH >= compatibility_minimum[2];
}
if (!compatible) {
ERR_PRINT(vformat("GDExtension only compatible with Godot version %d.%d.%d or later: %s", compatibility_minimum[0], compatibility_minimum[1], compatibility_minimum[2], p_path));
return ERR_INVALID_DATA;
}
// Optionally check maximum compatibility.
if (config->has_section_key("configuration", "compatibility_maximum")) {
uint32_t compatibility_maximum[3] = { 0, 0, 0 };
String compat_string = config->get_value("configuration", "compatibility_maximum");
Vector<int> parts = compat_string.split_ints(".");
for (int i = 0; i < 3; i++) {
if (i < parts.size() && parts[i] >= 0) {
compatibility_maximum[i] = parts[i];
} else {
// If a version part is missing, set the maximum to an arbitrary high value.
compatibility_maximum[i] = 9999;
}
}
compatible = true;
if (VERSION_MAJOR != compatibility_maximum[0]) {
compatible = VERSION_MAJOR < compatibility_maximum[0];
} else if (VERSION_MINOR != compatibility_maximum[1]) {
compatible = VERSION_MINOR < compatibility_maximum[1];
}
#if VERSION_PATCH
// #if check to avoid -Wtype-limits warning when 0.
else {
compatible = VERSION_PATCH <= compatibility_maximum[2];
}
#endif
if (!compatible) {
ERR_PRINT(vformat("GDExtension only compatible with Godot version %s or earlier: %s", compat_string, p_path));
return ERR_INVALID_DATA;
}
}
String library_path = GDExtension::find_extension_library(p_path, config, [](const String &p_feature) { return OS::get_singleton()->has_feature(p_feature); });
if (library_path.is_empty()) {
const String os_arch = OS::get_singleton()->get_name().to_lower() + "." + Engine::get_singleton()->get_architecture_name();
ERR_PRINT(vformat("No GDExtension library found for current OS and architecture (%s) in configuration file: %s", os_arch, p_path));
return ERR_FILE_NOT_FOUND;
}
bool is_static_library = library_path.ends_with(".a") || library_path.ends_with(".xcframework");
if (!library_path.is_resource_file() && !library_path.is_absolute_path()) {
library_path = p_path.get_base_dir().path_join(library_path);
}
if (p_extension.is_null()) {
p_extension.instantiate();
}
#ifdef TOOLS_ENABLED
p_extension->set_reloadable(config->get_value("configuration", "reloadable", false) && Engine::get_singleton()->is_extension_reloading_enabled());
p_extension->update_last_modified_time(
FileAccess::get_modified_time(p_path),
FileAccess::get_modified_time(library_path));
#endif
Vector<SharedObject> library_dependencies = GDExtension::find_extension_dependencies(p_path, config, [](const String &p_feature) { return OS::get_singleton()->has_feature(p_feature); });
err = p_extension->open_library(is_static_library ? String() : library_path, entry_symbol, &library_dependencies);
if (err != OK) {
// Unreference the extension so that this loading can be considered a failure.
p_extension.unref();
// Errors already logged in open_library()
return err;
}
// Handle icons if any are specified.
if (config->has_section("icons")) {
List<String> keys;
config->get_section_keys("icons", &keys);
for (const String &key : keys) {
String icon_path = config->get_value("icons", key);
if (icon_path.is_relative_path()) {
icon_path = p_path.get_base_dir().path_join(icon_path);
}
p_extension->class_icon_paths[key] = icon_path;
}
GDExtensionManager::LoadStatus status = extension_manager->load_extension(p_path);
if (status != GDExtensionManager::LOAD_STATUS_OK && status != GDExtensionManager::LOAD_STATUS_ALREADY_LOADED) {
// Errors already logged in load_extension().
return FAILED;
}
p_extension = extension_manager->get_extension(p_path);
return OK;
}
@ -1125,16 +841,7 @@ String GDExtensionResourceLoader::get_resource_type(const String &p_path) const
#ifdef TOOLS_ENABLED
bool GDExtension::has_library_changed() const {
// Check only that the last modified time is different (rather than checking
// that it's newer) since some OS's (namely Windows) will preserve the modified
// time by default when copying files.
if (FileAccess::get_modified_time(get_path()) != resource_last_modified_time) {
return true;
}
if (FileAccess::get_modified_time(library_path) != library_last_modified_time) {
return true;
}
return false;
return loader->has_library_changed();
}
void GDExtension::prepare_reload() {

23
core/extension/gdextension.h
View File

@ -31,13 +31,11 @@
#ifndef GDEXTENSION_H
#define GDEXTENSION_H
#include <functional>
#include "core/extension/gdextension_interface.h"
#include "core/extension/gdextension_loader.h"
#include "core/io/config_file.h"
#include "core/io/resource_loader.h"
#include "core/object/ref_counted.h"
#include "core/os/shared_object.h"
class GDExtensionMethodBind;
@ -46,8 +44,8 @@ class GDExtension : public Resource {
friend class GDExtensionManager;
void *library = nullptr; // pointer if valid,
String library_path;
Ref<GDExtensionLoader> loader;
bool reloadable = false;
struct Extension {
@ -98,8 +96,6 @@ class GDExtension : public Resource {
int32_t level_initialized = -1;
#ifdef TOOLS_ENABLED
uint64_t resource_last_modified_time = 0;
uint64_t library_last_modified_time = 0;
bool is_reloading = false;
Vector<GDExtensionMethodBind *> invalid_methods;
Vector<ObjectID> instance_bindings;
@ -126,11 +122,12 @@ public:
virtual bool editor_can_reload_from_file() override { return false; } // Reloading is handled in a special way.
static String get_extension_list_config_file();
static String find_extension_library(const String &p_path, Ref<ConfigFile> p_config, std::function<bool(String)> p_has_feature, PackedStringArray *r_tags = nullptr);
static Vector<SharedObject> find_extension_dependencies(const String &p_path, Ref<ConfigFile> p_config, std::function<bool(String)> p_has_feature);
Error open_library(const String &p_path, const String &p_entry_symbol, Vector<SharedObject> *p_dependencies = nullptr);
const Ref<GDExtensionLoader> get_loader() const { return loader; }
Error open_library(const String &p_path, const Ref<GDExtensionLoader> &p_loader);
void close_library();
bool is_library_open() const;
enum InitializationLevel {
INITIALIZATION_LEVEL_CORE = GDEXTENSION_INITIALIZATION_CORE,
@ -148,17 +145,11 @@ protected:
#endif
public:
bool is_library_open() const;
#ifdef TOOLS_ENABLED
bool is_reloadable() const { return reloadable; }
void set_reloadable(bool p_reloadable) { reloadable = p_reloadable; }
bool has_library_changed() const;
void update_last_modified_time(uint64_t p_resource_last_modified_time, uint64_t p_library_last_modified_time) {
resource_last_modified_time = p_resource_last_modified_time;
library_last_modified_time = p_library_last_modified_time;
}
void track_instance_binding(Object *p_object);
void untrack_instance_binding(Object *p_object);

390
core/extension/gdextension_library_loader.cpp Normal file
View File

@ -0,0 +1,390 @@
/**************************************************************************/
/* gdextension_library_loader.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "gdextension_library_loader.h"
#include "core/config/project_settings.h"
#include "core/io/dir_access.h"
#include "core/version.h"
#include "gdextension.h"
Vector<SharedObject> GDExtensionLibraryLoader::find_extension_dependencies(const String &p_path, Ref<ConfigFile> p_config, std::function<bool(String)> p_has_feature) {
Vector<SharedObject> dependencies_shared_objects;
if (p_config->has_section("dependencies")) {
List<String> config_dependencies;
p_config->get_section_keys("dependencies", &config_dependencies);
for (const String &dependency : config_dependencies) {
Vector<String> dependency_tags = dependency.split(".");
bool all_tags_met = true;
for (int i = 0; i < dependency_tags.size(); i++) {
String tag = dependency_tags[i].strip_edges();
if (!p_has_feature(tag)) {
all_tags_met = false;
break;
}
}
if (all_tags_met) {
Dictionary dependency_value = p_config->get_value("dependencies", dependency);
for (const Variant *key = dependency_value.next(nullptr); key; key = dependency_value.next(key)) {
String dependency_path = *key;
String target_path = dependency_value[*key];
if (dependency_path.is_relative_path()) {
dependency_path = p_path.get_base_dir().path_join(dependency_path);
}
dependencies_shared_objects.push_back(SharedObject(dependency_path, dependency_tags, target_path));
}
break;
}
}
}
return dependencies_shared_objects;
}
String GDExtensionLibraryLoader::find_extension_library(const String &p_path, Ref<ConfigFile> p_config, std::function<bool(String)> p_has_feature, PackedStringArray *r_tags) {
// First, check the explicit libraries.
if (p_config->has_section("libraries")) {
List<String> libraries;
p_config->get_section_keys("libraries", &libraries);
// Iterate the libraries, finding the best matching tags.
String best_library_path;
Vector<String> best_library_tags;
for (const String &E : libraries) {
Vector<String> tags = E.split(".");
bool all_tags_met = true;
for (int i = 0; i < tags.size(); i++) {
String tag = tags[i].strip_edges();
if (!p_has_feature(tag)) {
all_tags_met = false;
break;
}
}
if (all_tags_met && tags.size() > best_library_tags.size()) {
best_library_path = p_config->get_value("libraries", E);
best_library_tags = tags;
}
}
if (!best_library_path.is_empty()) {
if (best_library_path.is_relative_path()) {
best_library_path = p_path.get_base_dir().path_join(best_library_path);
}
if (r_tags != nullptr) {
r_tags->append_array(best_library_tags);
}
return best_library_path;
}
}
// Second, try to autodetect.
String autodetect_library_prefix;
if (p_config->has_section_key("configuration", "autodetect_library_prefix")) {
autodetect_library_prefix = p_config->get_value("configuration", "autodetect_library_prefix");
}
if (!autodetect_library_prefix.is_empty()) {
String autodetect_path = autodetect_library_prefix;
if (autodetect_path.is_relative_path()) {
autodetect_path = p_path.get_base_dir().path_join(autodetect_path);
}
// Find the folder and file parts of the prefix.
String folder;
String file_prefix;
if (DirAccess::dir_exists_absolute(autodetect_path)) {
folder = autodetect_path;
} else if (DirAccess::dir_exists_absolute(autodetect_path.get_base_dir())) {
folder = autodetect_path.get_base_dir();
file_prefix = autodetect_path.get_file();
} else {
ERR_FAIL_V_MSG(String(), vformat("Error in extension: %s. Could not find folder for automatic detection of libraries files. autodetect_library_prefix=\"%s\"", p_path, autodetect_library_prefix));
}
// Open the folder.
Ref<DirAccess> dir = DirAccess::open(folder);
ERR_FAIL_COND_V_MSG(dir.is_null(), String(), vformat("Error in extension: %s. Could not open folder for automatic detection of libraries files. autodetect_library_prefix=\"%s\"", p_path, autodetect_library_prefix));
// Iterate the files and check the prefixes, finding the best matching file.
String best_file;
Vector<String> best_file_tags;
dir->list_dir_begin();
String file_name = dir->_get_next();
while (file_name != "") {
if (!dir->current_is_dir() && file_name.begins_with(file_prefix)) {
// Check if the files matches all requested feature tags.
String tags_str = file_name.trim_prefix(file_prefix);
tags_str = tags_str.trim_suffix(tags_str.get_extension());
Vector<String> tags = tags_str.split(".", false);
bool all_tags_met = true;
for (int i = 0; i < tags.size(); i++) {
String tag = tags[i].strip_edges();
if (!p_has_feature(tag)) {
all_tags_met = false;
break;
}
}
// If all tags are found in the feature list, and we found more tags than before, use this file.
if (all_tags_met && tags.size() > best_file_tags.size()) {
best_file_tags = tags;
best_file = file_name;
}
}
file_name = dir->_get_next();
}
if (!best_file.is_empty()) {
String library_path = folder.path_join(best_file);
if (r_tags != nullptr) {
r_tags->append_array(best_file_tags);
}
return library_path;
}
}
return String();
}
Error GDExtensionLibraryLoader::open_library(const String &p_path) {
Error err = parse_gdextension_file(p_path);
if (err != OK) {
return err;
}
String abs_path = ProjectSettings::get_singleton()->globalize_path(library_path);
Vector<String> abs_dependencies_paths;
if (!library_dependencies.is_empty()) {
for (const SharedObject &dependency : library_dependencies) {
abs_dependencies_paths.push_back(ProjectSettings::get_singleton()->globalize_path(dependency.path));
}
}
OS::GDExtensionData data = {
true, // also_set_library_path
&library_path, // r_resolved_path
Engine::get_singleton()->is_editor_hint(), // generate_temp_files
&abs_dependencies_paths, // library_dependencies
};
err = OS::get_singleton()->open_dynamic_library(is_static_library ? String() : abs_path, library, &data);
if (err != OK) {
return err;
}
return OK;
}
Error GDExtensionLibraryLoader::initialize(GDExtensionInterfaceGetProcAddress p_get_proc_address, const Ref<GDExtension> &p_extension, GDExtensionInitialization *r_initialization) {
#ifdef TOOLS_ENABLED
p_extension->set_reloadable(is_reloadable && Engine::get_singleton()->is_extension_reloading_enabled());
#endif
for (const KeyValue<String, String> &icon : class_icon_paths) {
p_extension->class_icon_paths[icon.key] = icon.value;
}
void *entry_funcptr = nullptr;
Error err = OS::get_singleton()->get_dynamic_library_symbol_handle(library, entry_symbol, entry_funcptr, false);
if (err != OK) {
ERR_PRINT("GDExtension entry point '" + entry_symbol + "' not found in library " + library_path);
return err;
}
GDExtensionInitializationFunction initialization_function = (GDExtensionInitializationFunction)entry_funcptr;
GDExtensionBool ret = initialization_function(p_get_proc_address, p_extension.ptr(), r_initialization);
if (ret) {
return OK;
} else {
ERR_PRINT("GDExtension initialization function '" + entry_symbol + "' returned an error.");
return FAILED;
}
}
void GDExtensionLibraryLoader::close_library() {
OS::get_singleton()->close_dynamic_library(library);
library = nullptr;
}
bool GDExtensionLibraryLoader::is_library_open() const {
return library != nullptr;
}
bool GDExtensionLibraryLoader::has_library_changed() const {
#ifdef TOOLS_ENABLED
// Check only that the last modified time is different (rather than checking
// that it's newer) since some OS's (namely Windows) will preserve the modified
// time by default when copying files.
if (FileAccess::get_modified_time(resource_path) != resource_last_modified_time) {
return true;
}
if (FileAccess::get_modified_time(library_path) != library_last_modified_time) {
return true;
}
#endif
return false;
}
Error GDExtensionLibraryLoader::parse_gdextension_file(const String &p_path) {
resource_path = p_path;
Ref<ConfigFile> config;
config.instantiate();
Error err = config->load(p_path);
if (err != OK) {
ERR_PRINT("Error loading GDExtension configuration file: " + p_path);
return err;
}
if (!config->has_section_key("configuration", "entry_symbol")) {
ERR_PRINT("GDExtension configuration file must contain a \"configuration/entry_symbol\" key: " + p_path);
return ERR_INVALID_DATA;
}
entry_symbol = config->get_value("configuration", "entry_symbol");
uint32_t compatibility_minimum[3] = { 0, 0, 0 };
if (config->has_section_key("configuration", "compatibility_minimum")) {
String compat_string = config->get_value("configuration", "compatibility_minimum");
Vector<int> parts = compat_string.split_ints(".");
for (int i = 0; i < parts.size(); i++) {
if (i >= 3) {
break;
}
if (parts[i] >= 0) {
compatibility_minimum[i] = parts[i];
}
}
} else {
ERR_PRINT("GDExtension configuration file must contain a \"configuration/compatibility_minimum\" key: " + p_path);
return ERR_INVALID_DATA;
}
if (compatibility_minimum[0] < 4 || (compatibility_minimum[0] == 4 && compatibility_minimum[1] == 0)) {
ERR_PRINT(vformat("GDExtension's compatibility_minimum (%d.%d.%d) must be at least 4.1.0: %s", compatibility_minimum[0], compatibility_minimum[1], compatibility_minimum[2], p_path));
return ERR_INVALID_DATA;
}
bool compatible = true;
// Check version lexicographically.
if (VERSION_MAJOR != compatibility_minimum[0]) {
compatible = VERSION_MAJOR > compatibility_minimum[0];
} else if (VERSION_MINOR != compatibility_minimum[1]) {
compatible = VERSION_MINOR > compatibility_minimum[1];
} else {
compatible = VERSION_PATCH >= compatibility_minimum[2];
}
if (!compatible) {
ERR_PRINT(vformat("GDExtension only compatible with Godot version %d.%d.%d or later: %s", compatibility_minimum[0], compatibility_minimum[1], compatibility_minimum[2], p_path));
return ERR_INVALID_DATA;
}
// Optionally check maximum compatibility.
if (config->has_section_key("configuration", "compatibility_maximum")) {
uint32_t compatibility_maximum[3] = { 0, 0, 0 };
String compat_string = config->get_value("configuration", "compatibility_maximum");
Vector<int> parts = compat_string.split_ints(".");
for (int i = 0; i < 3; i++) {
if (i < parts.size() && parts[i] >= 0) {
compatibility_maximum[i] = parts[i];
} else {
// If a version part is missing, set the maximum to an arbitrary high value.
compatibility_maximum[i] = 9999;
}
}
compatible = true;
if (VERSION_MAJOR != compatibility_maximum[0]) {
compatible = VERSION_MAJOR < compatibility_maximum[0];
} else if (VERSION_MINOR != compatibility_maximum[1]) {
compatible = VERSION_MINOR < compatibility_maximum[1];
}
#if VERSION_PATCH
// #if check to avoid -Wtype-limits warning when 0.
else {
compatible = VERSION_PATCH <= compatibility_maximum[2];
}
#endif
if (!compatible) {
ERR_PRINT(vformat("GDExtension only compatible with Godot version %s or earlier: %s", compat_string, p_path));
return ERR_INVALID_DATA;
}
}
library_path = find_extension_library(p_path, config, [](const String &p_feature) { return OS::get_singleton()->has_feature(p_feature); });
if (library_path.is_empty()) {
const String os_arch = OS::get_singleton()->get_name().to_lower() + "." + Engine::get_singleton()->get_architecture_name();
ERR_PRINT(vformat("No GDExtension library found for current OS and architecture (%s) in configuration file: %s", os_arch, p_path));
return ERR_FILE_NOT_FOUND;
}
is_static_library = library_path.ends_with(".a") || library_path.ends_with(".xcframework");
if (!library_path.is_resource_file() && !library_path.is_absolute_path()) {
library_path = p_path.get_base_dir().path_join(library_path);
}
#ifdef TOOLS_ENABLED
is_reloadable = config->get_value("configuration", "reloadable", false);
update_last_modified_time(
FileAccess::get_modified_time(resource_path),
FileAccess::get_modified_time(library_path));
#endif
library_dependencies = find_extension_dependencies(p_path, config, [](const String &p_feature) { return OS::get_singleton()->has_feature(p_feature); });
// Handle icons if any are specified.
if (config->has_section("icons")) {
List<String> keys;
config->get_section_keys("icons", &keys);
for (const String &key : keys) {
String icon_path = config->get_value("icons", key);
if (icon_path.is_relative_path()) {
icon_path = p_path.get_base_dir().path_join(icon_path);
}
class_icon_paths[key] = icon_path;
}
}
return OK;
}

84
core/extension/gdextension_library_loader.h Normal file
View File

@ -0,0 +1,84 @@
/**************************************************************************/
/* gdextension_library_loader.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef GDEXTENSION_LIBRARY_LOADER_H
#define GDEXTENSION_LIBRARY_LOADER_H
#include <functional>
#include "core/extension/gdextension_loader.h"
#include "core/io/config_file.h"
#include "core/os/shared_object.h"
class GDExtensionLibraryLoader : public GDExtensionLoader {
friend class GDExtensionManager;
friend class GDExtension;
private:
String resource_path;
void *library = nullptr; // pointer if valid.
String library_path;
String entry_symbol;
bool is_static_library = false;
#ifdef TOOLS_ENABLED
bool is_reloadable = false;
#endif
Vector<SharedObject> library_dependencies;
HashMap<String, String> class_icon_paths;
#ifdef TOOLS_ENABLED
uint64_t resource_last_modified_time = 0;
uint64_t library_last_modified_time = 0;
void update_last_modified_time(uint64_t p_resource_last_modified_time, uint64_t p_library_last_modified_time) {
resource_last_modified_time = p_resource_last_modified_time;
library_last_modified_time = p_library_last_modified_time;
}
#endif
public:
static String find_extension_library(const String &p_path, Ref<ConfigFile> p_config, std::function<bool(String)> p_has_feature, PackedStringArray *r_tags = nullptr);
static Vector<SharedObject> find_extension_dependencies(const String &p_path, Ref<ConfigFile> p_config, std::function<bool(String)> p_has_feature);
virtual Error open_library(const String &p_path) override;
virtual Error initialize(GDExtensionInterfaceGetProcAddress p_get_proc_address, const Ref<GDExtension> &p_extension, GDExtensionInitialization *r_initialization) override;
virtual void close_library() override;
virtual bool is_library_open() const override;
virtual bool has_library_changed() const override;
Error parse_gdextension_file(const String &p_path);
};
#endif // GDEXTENSION_LIBRARY_LOADER_H

47
core/extension/gdextension_loader.h Normal file
View File

@ -0,0 +1,47 @@
/**************************************************************************/
/* gdextension_loader.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef GDEXTENSION_LOADER_H
#define GDEXTENSION_LOADER_H
#include "core/object/ref_counted.h"
class GDExtension;
class GDExtensionLoader : public RefCounted {
public:
virtual Error open_library(const String &p_path) = 0;
virtual Error initialize(GDExtensionInterfaceGetProcAddress p_get_proc_address, const Ref<GDExtension> &p_extension, GDExtensionInitialization *r_initialization) = 0;
virtual void close_library() = 0;
virtual bool is_library_open() const = 0;
virtual bool has_library_changed() const = 0;
};
#endif // GDEXTENSION_LOADER_H

19
core/extension/gdextension_manager.cpp
View File

@ -31,6 +31,7 @@
#include "gdextension_manager.h"
#include "core/extension/gdextension_compat_hashes.h"
#include "core/extension/gdextension_library_loader.h"
#include "core/io/file_access.h"
#include "core/object/script_language.h"
@ -69,11 +70,22 @@ GDExtensionManager::LoadStatus GDExtensionManager::_unload_extension_internal(co
}
GDExtensionManager::LoadStatus GDExtensionManager::load_extension(const String &p_path) {
Ref<GDExtensionLibraryLoader> loader;
loader.instantiate();
return GDExtensionManager::get_singleton()->load_extension_with_loader(p_path, loader);
}
GDExtensionManager::LoadStatus GDExtensionManager::load_extension_with_loader(const String &p_path, const Ref<GDExtensionLoader> &p_loader) {
DEV_ASSERT(p_loader.is_valid());
if (gdextension_map.has(p_path)) {
return LOAD_STATUS_ALREADY_LOADED;
}
Ref<GDExtension> extension = ResourceLoader::load(p_path);
if (extension.is_null()) {
Ref<GDExtension> extension;
extension.instantiate();
Error err = extension->open_library(p_path, p_loader);
if (err != OK) {
return LOAD_STATUS_FAILED;
}
@ -82,6 +94,7 @@ GDExtensionManager::LoadStatus GDExtensionManager::load_extension(const String &
return status;
}
extension->set_path(p_path);
gdextension_map[p_path] = extension;
return LOAD_STATUS_OK;
}
@ -117,7 +130,7 @@ GDExtensionManager::LoadStatus GDExtensionManager::reload_extension(const String
extension->close_library();
}
Error err = GDExtensionResourceLoader::load_gdextension_resource(p_path, extension);
Error err = extension->open_library(p_path, extension->loader);
if (err != OK) {
return LOAD_STATUS_FAILED;
}

1
core/extension/gdextension_manager.h
View File

@ -63,6 +63,7 @@ private:
public:
LoadStatus load_extension(const String &p_path);
LoadStatus load_extension_with_loader(const String &p_path, const Ref<GDExtensionLoader> &p_loader);
LoadStatus reload_extension(const String &p_path);
LoadStatus unload_extension(const String &p_path);
bool is_extension_loaded(const String &p_path) const;

5
editor/editor_file_system.cpp
View File

@ -2955,7 +2955,10 @@ bool EditorFileSystem::_scan_extensions() {
Vector<String> loaded_extensions = GDExtensionManager::get_singleton()->get_loaded_extensions();
for (int i = 0; i < loaded_extensions.size(); i++) {
if (!extensions.has(loaded_extensions[i])) {
extensions_removed.push_back(loaded_extensions[i]);
// The extension may not have a .gdextension file.
if (!FileAccess::exists(loaded_extensions[i])) {
extensions_removed.push_back(loaded_extensions[i]);
}
}
}

5
editor/plugins/gdextension_export_plugin.h
View File

@ -31,6 +31,7 @@
#ifndef GDEXTENSION_EXPORT_PLUGIN_H
#define GDEXTENSION_EXPORT_PLUGIN_H
#include "core/extension/gdextension_library_loader.h"
#include "editor/export/editor_export.h"
class GDExtensionExportPlugin : public EditorExportPlugin {
@ -92,7 +93,7 @@ void GDExtensionExportPlugin::_export_file(const String &p_path, const String &p
for (const String &arch_tag : archs) {
PackedStringArray tags;
String library_path = GDExtension::find_extension_library(
String library_path = GDExtensionLibraryLoader::find_extension_library(
p_path, config, [features_wo_arch, arch_tag](const String &p_feature) { return features_wo_arch.has(p_feature) || (p_feature == arch_tag); }, &tags);
if (libs_added.has(library_path)) {
continue; // Universal library, already added for another arch, do not duplicate.
@ -129,7 +130,7 @@ void GDExtensionExportPlugin::_export_file(const String &p_path, const String &p
ERR_FAIL_MSG(vformat("No suitable library found for GDExtension: %s. Possible feature flags for your platform: %s", p_path, String(", ").join(features_vector)));
}
Vector<SharedObject> dependencies_shared_objects = GDExtension::find_extension_dependencies(p_path, config, [p_features](String p_feature) { return p_features.has(p_feature); });
Vector<SharedObject> dependencies_shared_objects = GDExtensionLibraryLoader::find_extension_dependencies(p_path, config, [p_features](String p_feature) { return p_features.has(p_feature); });
for (const SharedObject &shared_object : dependencies_shared_objects) {
_add_shared_object(shared_object);
}