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-rw-r--r--src/httpfetch.cpp10
-rw-r--r--src/main.cpp21
-rw-r--r--src/map_settings_manager.cpp35
-rw-r--r--src/map_settings_manager.h6
-rw-r--r--src/settings.cpp106
-rw-r--r--src/settings.h44
-rw-r--r--src/unittest/test_map_settings_manager.cpp5
7 files changed, 160 insertions, 67 deletions
diff --git a/src/httpfetch.cpp b/src/httpfetch.cpp
index 6137782ff..1307bfec3 100644
--- a/src/httpfetch.cpp
+++ b/src/httpfetch.cpp
@@ -761,10 +761,12 @@ void httpfetch_cleanup()
{
verbosestream<<"httpfetch_cleanup: cleaning up"<<std::endl;
- g_httpfetch_thread->stop();
- g_httpfetch_thread->requestWakeUp();
- g_httpfetch_thread->wait();
- delete g_httpfetch_thread;
+ if (g_httpfetch_thread) {
+ g_httpfetch_thread->stop();
+ g_httpfetch_thread->requestWakeUp();
+ g_httpfetch_thread->wait();
+ delete g_httpfetch_thread;
+ }
curl_global_cleanup();
}
diff --git a/src/main.cpp b/src/main.cpp
index 4a69f83b5..ffbdb7b5b 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -91,6 +91,7 @@ static void list_worlds(bool print_name, bool print_path);
static bool setup_log_params(const Settings &cmd_args);
static bool create_userdata_path();
static bool init_common(const Settings &cmd_args, int argc, char *argv[]);
+static void uninit_common();
static void startup_message();
static bool read_config_file(const Settings &cmd_args);
static void init_log_streams(const Settings &cmd_args);
@@ -201,6 +202,7 @@ int main(int argc, char *argv[])
errorstream << "Unittest support is not enabled in this binary. "
<< "If you want to enable it, compile project with BUILD_UNITTESTS=1 flag."
<< std::endl;
+ return 1;
#endif
}
#endif
@@ -236,9 +238,6 @@ int main(int argc, char *argv[])
print_modified_quicktune_values();
- // Stop httpfetch thread (if started)
- httpfetch_cleanup();
-
END_DEBUG_EXCEPTION_HANDLER
return retval;
@@ -486,13 +485,14 @@ static bool init_common(const Settings &cmd_args, int argc, char *argv[])
startup_message();
set_default_settings();
- // Initialize sockets
sockets_init();
- atexit(sockets_cleanup);
// Initialize g_settings
Settings::createLayer(SL_GLOBAL);
+ // Set cleanup callback(s) to run at process exit
+ atexit(uninit_common);
+
if (!read_config_file(cmd_args))
return false;
@@ -511,6 +511,17 @@ static bool init_common(const Settings &cmd_args, int argc, char *argv[])
return true;
}
+static void uninit_common()
+{
+ httpfetch_cleanup();
+
+ sockets_cleanup();
+
+ // It'd actually be okay to leak these but we want to please valgrind...
+ for (int i = 0; i < (int)SL_TOTAL_COUNT; i++)
+ delete Settings::getLayer((SettingsLayer)i);
+}
+
static void startup_message()
{
infostream << PROJECT_NAME << " " << _("with")
diff --git a/src/map_settings_manager.cpp b/src/map_settings_manager.cpp
index 99e3cb0e6..7e86a9937 100644
--- a/src/map_settings_manager.cpp
+++ b/src/map_settings_manager.cpp
@@ -26,15 +26,24 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "map_settings_manager.h"
MapSettingsManager::MapSettingsManager(const std::string &map_meta_path):
- m_map_meta_path(map_meta_path)
+ m_map_meta_path(map_meta_path),
+ m_hierarchy(g_settings)
{
- m_map_settings = Settings::createLayer(SL_MAP, "[end_of_params]");
- Mapgen::setDefaultSettings(Settings::getLayer(SL_DEFAULTS));
+ /*
+ * We build our own hierarchy which falls back to the global one.
+ * It looks as follows: (lowest prio first)
+ * 0: whatever is picked up from g_settings (incl. engine defaults)
+ * 1: defaults set by scripts (override_meta = false)
+ * 2: settings present in map_meta.txt or overriden by scripts
+ */
+ m_defaults = new Settings("", &m_hierarchy, 1);
+ m_map_settings = new Settings("[end_of_params]", &m_hierarchy, 2);
}
MapSettingsManager::~MapSettingsManager()
{
+ delete m_defaults;
delete m_map_settings;
delete mapgen_params;
}
@@ -43,14 +52,13 @@ MapSettingsManager::~MapSettingsManager()
bool MapSettingsManager::getMapSetting(
const std::string &name, std::string *value_out)
{
- // Get from map_meta.txt, then try from all other sources
+ // Try getting it normally first
if (m_map_settings->getNoEx(name, *value_out))
return true;
- // Compatibility kludge
+ // If not we may have to resolve some compatibility kludges
if (name == "seed")
return Settings::getLayer(SL_GLOBAL)->getNoEx("fixed_map_seed", *value_out);
-
return false;
}
@@ -72,7 +80,7 @@ bool MapSettingsManager::setMapSetting(
if (override_meta)
m_map_settings->set(name, value);
else
- Settings::getLayer(SL_GLOBAL)->set(name, value);
+ m_defaults->set(name, value);
return true;
}
@@ -87,7 +95,7 @@ bool MapSettingsManager::setMapSettingNoiseParams(
if (override_meta)
m_map_settings->setNoiseParams(name, *value);
else
- Settings::getLayer(SL_GLOBAL)->setNoiseParams(name, *value);
+ m_defaults->setNoiseParams(name, *value);
return true;
}
@@ -146,15 +154,8 @@ MapgenParams *MapSettingsManager::makeMapgenParams()
if (mapgen_params)
return mapgen_params;
- assert(m_map_settings != NULL);
-
- // At this point, we have (in order of precedence):
- // 1). SL_MAP containing map_meta.txt settings or
- // explicit overrides from scripts
- // 2). SL_GLOBAL containing all user-specified config file
- // settings
- // 3). SL_DEFAULTS containing any low-priority settings from
- // scripts, e.g. mods using Lua as an enhanced config file)
+ assert(m_map_settings);
+ assert(m_defaults);
// Now, get the mapgen type so we can create the appropriate MapgenParams
std::string mg_name;
diff --git a/src/map_settings_manager.h b/src/map_settings_manager.h
index 9258d3032..fa271268d 100644
--- a/src/map_settings_manager.h
+++ b/src/map_settings_manager.h
@@ -20,8 +20,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#pragma once
#include <string>
+#include "settings.h"
-class Settings;
struct NoiseParams;
struct MapgenParams;
@@ -70,6 +70,8 @@ public:
private:
std::string m_map_meta_path;
- // TODO: Rename to "m_settings"
+
+ SettingsHierarchy m_hierarchy;
+ Settings *m_defaults;
Settings *m_map_settings;
};
diff --git a/src/settings.cpp b/src/settings.cpp
index cff393e5f..0a9424994 100644
--- a/src/settings.cpp
+++ b/src/settings.cpp
@@ -33,35 +33,90 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include <cctype>
#include <algorithm>
-Settings *g_settings = nullptr; // Populated in main()
+Settings *g_settings = nullptr;
+static SettingsHierarchy g_hierarchy;
std::string g_settings_path;
-Settings *Settings::s_layers[SL_TOTAL_COUNT] = {0}; // Zeroed by compiler
std::unordered_map<std::string, const FlagDesc *> Settings::s_flags;
+/* Settings hierarchy implementation */
-Settings *Settings::createLayer(SettingsLayer sl, const std::string &end_tag)
+SettingsHierarchy::SettingsHierarchy(Settings *fallback)
+{
+ layers.push_back(fallback);
+}
+
+
+Settings *SettingsHierarchy::getLayer(int layer) const
{
- if ((int)sl < 0 || sl >= SL_TOTAL_COUNT)
+ if (layer < 0 || layer >= layers.size())
throw BaseException("Invalid settings layer");
+ return layers[layer];
+}
+
- Settings *&pos = s_layers[(size_t)sl];
+Settings *SettingsHierarchy::getParent(int layer) const
+{
+ assert(layer >= 0 && layer < layers.size());
+ // iterate towards the origin (0) to find the next fallback layer
+ for (int i = layer - 1; i >= 0; --i) {
+ if (layers[i])
+ return layers[i];
+ }
+
+ return nullptr;
+}
+
+
+void SettingsHierarchy::onLayerCreated(int layer, Settings *obj)
+{
+ if (layer < 0)
+ throw BaseException("Invalid settings layer");
+ if (layers.size() < layer+1)
+ layers.resize(layer+1);
+
+ Settings *&pos = layers[layer];
if (pos)
- throw BaseException("Setting layer " + std::to_string(sl) + " already exists");
+ throw BaseException("Setting layer " + itos(layer) + " already exists");
+
+ pos = obj;
+ // This feels bad
+ if (this == &g_hierarchy && layer == (int)SL_GLOBAL)
+ g_settings = obj;
+}
+
+
+void SettingsHierarchy::onLayerRemoved(int layer)
+{
+ assert(layer >= 0 && layer < layers.size());
+ layers[layer] = nullptr;
+ if (this == &g_hierarchy && layer == (int)SL_GLOBAL)
+ g_settings = nullptr;
+}
- pos = new Settings(end_tag);
- pos->m_settingslayer = sl;
+/* Settings implementation */
- if (sl == SL_GLOBAL)
- g_settings = pos;
- return pos;
+Settings *Settings::createLayer(SettingsLayer sl, const std::string &end_tag)
+{
+ return new Settings(end_tag, &g_hierarchy, (int)sl);
}
Settings *Settings::getLayer(SettingsLayer sl)
{
sanity_check((int)sl >= 0 && sl < SL_TOTAL_COUNT);
- return s_layers[(size_t)sl];
+ return g_hierarchy.layers[(int)sl];
+}
+
+
+Settings::Settings(const std::string &end_tag, SettingsHierarchy *h,
+ int settings_layer) :
+ m_end_tag(end_tag),
+ m_hierarchy(h),
+ m_settingslayer(settings_layer)
+{
+ if (m_hierarchy)
+ m_hierarchy->onLayerCreated(m_settingslayer, this);
}
@@ -69,12 +124,8 @@ Settings::~Settings()
{
MutexAutoLock lock(m_mutex);
- if (m_settingslayer < SL_TOTAL_COUNT)
- s_layers[(size_t)m_settingslayer] = nullptr;
-
- // Compatibility
- if (m_settingslayer == SL_GLOBAL)
- g_settings = nullptr;
+ if (m_hierarchy)
+ m_hierarchy->onLayerRemoved(m_settingslayer);
clearNoLock();
}
@@ -86,8 +137,8 @@ Settings & Settings::operator = (const Settings &other)
return *this;
// TODO: Avoid copying Settings objects. Make this private.
- FATAL_ERROR_IF(m_settingslayer != SL_TOTAL_COUNT && other.m_settingslayer != SL_TOTAL_COUNT,
- ("Tried to copy unique Setting layer " + std::to_string(m_settingslayer)).c_str());
+ FATAL_ERROR_IF(m_hierarchy || other.m_hierarchy,
+ "Cannot copy or overwrite Settings object that belongs to a hierarchy");
MutexAutoLock lock(m_mutex);
MutexAutoLock lock2(other.m_mutex);
@@ -410,18 +461,7 @@ bool Settings::parseCommandLine(int argc, char *argv[],
Settings *Settings::getParent() const
{
- // If the Settings object is within the hierarchy structure,
- // iterate towards the origin (0) to find the next fallback layer
- if (m_settingslayer >= SL_TOTAL_COUNT)
- return nullptr;
-
- for (int i = (int)m_settingslayer - 1; i >= 0; --i) {
- if (s_layers[i])
- return s_layers[i];
- }
-
- // No parent
- return nullptr;
+ return m_hierarchy ? m_hierarchy->getParent(m_settingslayer) : nullptr;
}
@@ -823,6 +863,8 @@ bool Settings::set(const std::string &name, const std::string &value)
// TODO: Remove this function
bool Settings::setDefault(const std::string &name, const std::string &value)
{
+ FATAL_ERROR_IF(m_hierarchy != &g_hierarchy, "setDefault is only valid on "
+ "global settings");
return getLayer(SL_DEFAULTS)->set(name, value);
}
diff --git a/src/settings.h b/src/settings.h
index e22d949d3..7791413b9 100644
--- a/src/settings.h
+++ b/src/settings.h
@@ -21,6 +21,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "irrlichttypes_bloated.h"
#include "util/string.h"
+#include "util/basic_macros.h"
#include <string>
#include <list>
#include <set>
@@ -60,14 +61,36 @@ enum SettingsParseEvent {
SPE_MULTILINE,
};
+// Describes the global setting layers, SL_GLOBAL is where settings are read from
enum SettingsLayer {
SL_DEFAULTS,
SL_GAME,
SL_GLOBAL,
- SL_MAP,
SL_TOTAL_COUNT
};
+// Implements the hierarchy a settings object may be part of
+class SettingsHierarchy {
+public:
+ /*
+ * A settings object that may be part of another hierarchy can
+ * occupy the index 0 as a fallback. If not set you can use 0 on your own.
+ */
+ SettingsHierarchy(Settings *fallback = nullptr);
+
+ DISABLE_CLASS_COPY(SettingsHierarchy)
+
+ Settings *getLayer(int layer) const;
+
+private:
+ friend class Settings;
+ Settings *getParent(int layer) const;
+ void onLayerCreated(int layer, Settings *obj);
+ void onLayerRemoved(int layer);
+
+ std::vector<Settings*> layers;
+};
+
struct ValueSpec {
ValueSpec(ValueType a_type, const char *a_help=NULL)
{
@@ -100,13 +123,15 @@ typedef std::unordered_map<std::string, SettingsEntry> SettingEntries;
class Settings {
public:
+ /* These functions operate on the global hierarchy! */
static Settings *createLayer(SettingsLayer sl, const std::string &end_tag = "");
static Settings *getLayer(SettingsLayer sl);
- SettingsLayer getLayerType() const { return m_settingslayer; }
+ /**/
Settings(const std::string &end_tag = "") :
m_end_tag(end_tag)
{}
+ Settings(const std::string &end_tag, SettingsHierarchy *h, int settings_layer);
~Settings();
Settings & operator += (const Settings &other);
@@ -200,9 +225,9 @@ public:
// remove a setting
bool remove(const std::string &name);
- /**************
- * Miscellany *
- **************/
+ /*****************
+ * Miscellaneous *
+ *****************/
void setDefault(const std::string &name, const FlagDesc *flagdesc, u32 flags);
const FlagDesc *getFlagDescFallback(const std::string &name) const;
@@ -214,6 +239,10 @@ public:
void removeSecureSettings();
+ // Returns the settings layer this object is.
+ // If within the global hierarchy you can cast this to enum SettingsLayer
+ inline int getLayer() const { return m_settingslayer; }
+
private:
/***********************
* Reading and writing *
@@ -257,7 +286,8 @@ private:
// All methods that access m_settings/m_defaults directly should lock this.
mutable std::mutex m_mutex;
- static Settings *s_layers[SL_TOTAL_COUNT];
- SettingsLayer m_settingslayer = SL_TOTAL_COUNT;
+ SettingsHierarchy *m_hierarchy = nullptr;
+ int m_settingslayer = -1;
+
static std::unordered_map<std::string, const FlagDesc *> s_flags;
};
diff --git a/src/unittest/test_map_settings_manager.cpp b/src/unittest/test_map_settings_manager.cpp
index 81ca68705..17c31fe79 100644
--- a/src/unittest/test_map_settings_manager.cpp
+++ b/src/unittest/test_map_settings_manager.cpp
@@ -148,6 +148,11 @@ void TestMapSettingsManager::testMapSettingsManager()
check_noise_params(&dummy, &script_np_factor);
}
+ // The settings manager MUST leave user settings alone
+ mgr.setMapSetting("testname", "1");
+ mgr.setMapSetting("testname", "1", true);
+ UASSERT(!Settings::getLayer(SL_GLOBAL)->exists("testname"));
+
// Now make our Params and see if the values are correctly sourced
MapgenParams *params = mgr.makeMapgenParams();
UASSERT(params->mgtype == MAPGEN_V5);
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-20 00:12:16 +0000