forked from Mirrorlandia_minetest/minetest
Settings: Make setting entry group and values mutually exclusive
This greatly reduces the complexity of Settings code. Additionally, several memory leaks were fixed.
This commit is contained in:
kwolekr
parent
2f8fbdb9f5
commit
f2c18511a4
267
src/settings.cpp
267
src/settings.cpp
@ -36,9 +36,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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Settings::~Settings()
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{
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std::map<std::string, SettingsEntry>::const_iterator it;
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for (it = m_settings.begin(); it != m_settings.end(); ++it)
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delete it->second.group;
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clear();
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}
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@ -101,6 +99,16 @@ std::string Settings::getMultiline(std::istream &is, size_t *num_lines)
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}
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bool Settings::readConfigFile(const char *filename)
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{
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std::ifstream is(filename);
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if (!is.good())
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return false;
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return parseConfigLines(is, "");
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}
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bool Settings::parseConfigLines(std::istream &is, const std::string &end)
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{
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JMutexAutoLock lock(m_mutex);
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@ -122,11 +130,12 @@ bool Settings::parseConfigLines(std::istream &is, const std::string &end)
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case SPE_END:
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return true;
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case SPE_GROUP: {
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Settings *branch = new Settings;
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if (!branch->parseConfigLines(is, "}"))
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Settings *group = new Settings;
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if (!group->parseConfigLines(is, "}")) {
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delete group;
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return false;
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m_settings[name] = SettingsEntry(branch);
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}
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m_settings[name] = SettingsEntry(group);
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break;
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}
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case SPE_MULTILINE:
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@ -139,16 +148,6 @@ bool Settings::parseConfigLines(std::istream &is, const std::string &end)
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}
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bool Settings::readConfigFile(const char *filename)
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{
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std::ifstream is(filename);
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if (!is.good())
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return false;
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return parseConfigLines(is, "");
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}
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void Settings::writeLines(std::ostream &os, u32 tab_depth) const
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{
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JMutexAutoLock lock(m_mutex);
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@ -160,99 +159,28 @@ void Settings::writeLines(std::ostream &os, u32 tab_depth) const
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}
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bool Settings::printEntry(std::ostream &os, const std::string &name,
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void Settings::printEntry(std::ostream &os, const std::string &name,
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const SettingsEntry &entry, u32 tab_depth)
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{
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bool printed = false;
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if (!entry.group || entry.value != "") {
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printValue(os, name, entry.value, tab_depth);
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printed = true;
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}
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if (entry.group) {
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printGroup(os, name, entry.group, tab_depth);
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printed = true;
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}
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return printed;
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}
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void Settings::printValue(std::ostream &os, const std::string &name,
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const std::string &value, u32 tab_depth)
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{
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for (u32 i = 0; i != tab_depth; i++)
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os << "\t";
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if (entry.is_group) {
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os << name << " = {\n";
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entry.group->writeLines(os, tab_depth + 1);
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for (u32 i = 0; i != tab_depth; i++)
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os << "\t";
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os << "}\n";
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} else {
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os << name << " = ";
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if (value.find('\n') != std::string::npos)
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os << "\"\"\"\n" << value << "\n\"\"\"\n";
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if (entry.value.find('\n') != std::string::npos)
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os << "\"\"\"\n" << entry.value << "\n\"\"\"\n";
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else
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os << value << "\n";
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}
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void Settings::printGroup(std::ostream &os, const std::string &name,
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const Settings *group, u32 tab_depth)
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{
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// Recursively write group contents
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for (u32 i = 0; i != tab_depth; i++)
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os << "\t";
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os << name << " = {\n";
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group->writeLines(os, tab_depth + 1);
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for (u32 i = 0; i != tab_depth; i++)
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os << "\t";
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os << "}\n";
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}
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void Settings::getNamesPresent(std::istream &is, const std::string &end,
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std::set<std::string> &present_values, std::set<std::string> &present_groups)
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{
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std::string name, value, line;
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bool end_found = false;
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int depth = 0;
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size_t old_pos = is.tellg();
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while (is.good() && !end_found) {
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std::getline(is, line);
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SettingsParseEvent event = parseConfigObject(line,
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depth ? "}" : end, name, value);
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switch (event) {
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case SPE_END:
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if (depth == 0)
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end_found = true;
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else
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depth--;
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break;
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case SPE_MULTILINE:
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while (is.good() && line != "\"\"\"")
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std::getline(is, line);
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/* FALLTHROUGH */
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case SPE_KVPAIR:
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if (depth == 0)
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present_values.insert(name);
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break;
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case SPE_GROUP:
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if (depth == 0)
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present_groups.insert(name);
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depth++;
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break;
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case SPE_NONE:
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case SPE_COMMENT:
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case SPE_INVALID:
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break;
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os << entry.value << "\n";
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}
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}
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is.clear();
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is.seekg(old_pos);
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}
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@ -260,13 +188,11 @@ bool Settings::updateConfigObject(std::istream &is, std::ostream &os,
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const std::string &end, u32 tab_depth)
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{
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std::map<std::string, SettingsEntry>::const_iterator it;
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std::set<std::string> present_values, present_groups;
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std::set<std::string> present_entries;
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std::string line, name, value;
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bool was_modified = false;
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bool end_found = false;
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getNamesPresent(is, end, present_values, present_groups);
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// Add any settings that exist in the config file with the current value
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// in the object if existing
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while (is.good() && !end_found) {
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@ -283,48 +209,31 @@ bool Settings::updateConfigObject(std::istream &is, std::ostream &os,
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/* FALLTHROUGH */
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case SPE_KVPAIR:
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it = m_settings.find(name);
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if (it != m_settings.end() && value != it->second.value) {
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if (!it->second.group || it->second.value != "")
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printValue(os, name, it->second.value, tab_depth);
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if (it != m_settings.end() &&
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(it->second.is_group || it->second.value != value)) {
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printEntry(os, name, it->second, tab_depth);
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was_modified = true;
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} else {
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assert(it->second.group == NULL);
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os << line << "\n";
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if (event == SPE_MULTILINE)
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os << value << "\n\"\"\"\n";
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}
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// If this value name has a group not in the file, print it
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if (it != m_settings.end() && it->second.group &&
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present_groups.find(name) == present_groups.end()) {
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printGroup(os, name, it->second.group, tab_depth);
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was_modified = true;
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}
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present_entries.insert(name);
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break;
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case SPE_GROUP: {
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Settings *group = NULL;
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case SPE_GROUP:
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it = m_settings.find(name);
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if (it != m_settings.end())
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group = it->second.group;
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// If this group name has a non-blank value not in the file, print it
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if (it != m_settings.end() && it->second.value != "" &&
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present_values.find(name) == present_values.end()) {
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printValue(os, name, it->second.value, tab_depth);
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if (it != m_settings.end() && it->second.is_group) {
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os << line << "\n";
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assert(it->second.group != NULL);
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was_modified |= it->second.group->updateConfigObject(is, os,
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"}", tab_depth + 1);
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} else {
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printEntry(os, name, it->second, tab_depth);
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was_modified = true;
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}
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os << line << "\n";
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if (group) {
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was_modified |= group->updateConfigObject(is, os, "}", tab_depth + 1);
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} else {
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// If a group exists in the file but not memory, don't touch it
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Settings dummy_settings;
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dummy_settings.updateConfigObject(is, os, "}", tab_depth + 1);
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}
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present_entries.insert(name);
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break;
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}
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default:
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os << line << (is.eof() ? "" : "\n");
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break;
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@ -333,11 +242,11 @@ bool Settings::updateConfigObject(std::istream &is, std::ostream &os,
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// Add any settings in the object that don't exist in the config file yet
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for (it = m_settings.begin(); it != m_settings.end(); ++it) {
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if (present_values.find(it->first) != present_values.end() ||
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present_groups.find(it->first) != present_groups.end())
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if (present_entries.find(it->first) != present_entries.end())
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continue;
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was_modified |= printEntry(os, it->first, it->second, tab_depth);
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printEntry(os, it->first, it->second, tab_depth);
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was_modified = true;
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}
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return was_modified;
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@ -440,16 +349,19 @@ const SettingsEntry &Settings::getEntry(const std::string &name) const
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Settings *Settings::getGroup(const std::string &name) const
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{
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Settings *group = getEntry(name).group;
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if (group == NULL)
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const SettingsEntry &entry = getEntry(name);
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if (!entry.is_group)
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throw SettingNotFoundException("Setting [" + name + "] is not a group.");
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return group;
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return entry.group;
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}
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std::string Settings::get(const std::string &name) const
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{
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return getEntry(name).value;
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const SettingsEntry &entry = getEntry(name);
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if (entry.is_group)
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throw SettingNotFoundException("Setting [" + name + "] is a group.");
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return entry.value;
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}
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@ -772,49 +684,49 @@ bool Settings::getFlagStrNoEx(const std::string &name, u32 &val,
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* Setters *
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***********/
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void Settings::set(const std::string &name, const std::string &value)
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void Settings::setEntry(const std::string &name, const void *data,
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bool set_group, bool set_default)
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{
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Settings *old_group = NULL;
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{
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JMutexAutoLock lock(m_mutex);
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m_settings[name].value = value;
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SettingsEntry &entry = set_default ? m_defaults[name] : m_settings[name];
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old_group = entry.group;
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entry.value = set_group ? "" : *(const std::string *)data;
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entry.group = set_group ? *(Settings **)data : NULL;
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entry.is_group = set_group;
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}
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doCallbacks(name);
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delete old_group;
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}
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void Settings::setGroup(const std::string &name, Settings *group)
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void Settings::set(const std::string &name, const std::string &value)
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{
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Settings *old_group = NULL;
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{
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JMutexAutoLock lock(m_mutex);
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setEntry(name, &value, false, false);
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old_group = m_settings[name].group;
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m_settings[name].group = group;
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}
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delete old_group;
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doCallbacks(name);
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}
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void Settings::setDefault(const std::string &name, const std::string &value)
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{
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JMutexAutoLock lock(m_mutex);
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setEntry(name, &value, false, true);
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}
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m_defaults[name].value = value;
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void Settings::setGroup(const std::string &name, Settings *group)
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{
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setEntry(name, &group, true, false);
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}
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void Settings::setGroupDefault(const std::string &name, Settings *group)
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{
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Settings *old_group = NULL;
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{
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JMutexAutoLock lock(m_mutex);
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old_group = m_defaults[name].group;
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m_defaults[name].group = group;
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}
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delete old_group;
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setEntry(name, &group, true, true);
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}
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@ -891,7 +803,8 @@ bool Settings::setStruct(const std::string &name, const std::string &format,
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}
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void Settings::setNoiseParams(const std::string &name, const NoiseParams &np)
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void Settings::setNoiseParams(const std::string &name,
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const NoiseParams &np, bool set_default)
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{
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Settings *group = new Settings;
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@ -904,21 +817,15 @@ void Settings::setNoiseParams(const std::string &name, const NoiseParams &np)
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group->setFloat("lacunarity", np.lacunarity);
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group->setFlagStr("flags", np.flags, flagdesc_noiseparams, np.flags);
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Settings *old_group;
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{
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JMutexAutoLock lock(m_mutex);
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old_group = m_settings[name].group;
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m_settings[name].group = group;
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m_settings[name].value = "";
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}
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delete old_group;
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setEntry(name, &group, true, set_default);
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}
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bool Settings::remove(const std::string &name)
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{
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JMutexAutoLock lock(m_mutex);
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delete m_settings[name].group;
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return m_settings.erase(name);
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}
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@ -995,7 +902,13 @@ void Settings::updateNoLock(const Settings &other)
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void Settings::clearNoLock()
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{
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std::map<std::string, SettingsEntry>::const_iterator it;
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for (it = m_settings.begin(); it != m_settings.end(); ++it)
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delete it->second.group;
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m_settings.clear();
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for (it = m_defaults.begin(); it != m_defaults.end(); ++it)
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delete it->second.group;
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m_defaults.clear();
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}
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@ -1018,8 +931,8 @@ void Settings::doCallbacks(const std::string name)
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}
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}
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for (std::vector<setting_changed_callback>::iterator iter = tempvector.begin();
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iter != tempvector.end(); iter ++)
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std::vector<setting_changed_callback>::iterator iter;
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for (iter = tempvector.begin(); iter != tempvector.end(); iter++)
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{
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(*iter)(name);
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}
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@ -59,36 +59,31 @@ struct ValueSpec {
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const char *help;
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};
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/** function type to register a changed callback */
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struct SettingsEntry {
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SettingsEntry()
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{
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group = NULL;
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is_group = false;
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}
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SettingsEntry(const std::string &value_)
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{
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value = value_;
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group = NULL;
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is_group = false;
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}
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SettingsEntry(Settings *group_)
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{
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group = group_;
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}
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SettingsEntry(const std::string &value_, Settings *group_)
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{
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value = value_;
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group = group_;
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is_group = true;
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}
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std::string value;
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Settings *group;
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bool is_group;
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};
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class Settings {
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public:
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Settings() {}
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@ -97,7 +92,6 @@ public:
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Settings & operator += (const Settings &other);
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Settings & operator = (const Settings &other);
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/***********************
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* Reading and writing *
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***********************/
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@ -114,20 +108,13 @@ public:
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SettingsParseEvent parseConfigObject(const std::string &line,
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const std::string &end, std::string &name, std::string &value);
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void getNamesPresent(std::istream &is, const std::string &end,
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std::set<std::string> &present_values,
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std::set<std::string> &present_groups);
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bool updateConfigObject(std::istream &is, std::ostream &os,
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const std::string &end, u32 tab_depth=0);
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static std::string getMultiline(std::istream &is, size_t *num_lines=NULL);
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static std::string sanitizeString(const std::string &value);
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static bool printEntry(std::ostream &os, const std::string &name,
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static void printEntry(std::ostream &os, const std::string &name,
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const SettingsEntry &entry, u32 tab_depth=0);
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static void printValue(std::ostream &os, const std::string &name,
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const std::string &value, u32 tab_depth=0);
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static void printGroup(std::ostream &os, const std::string &name,
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const Settings *group, u32 tab_depth=0);
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/***********
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* Getters *
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@ -186,9 +173,11 @@ public:
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// N.B. Groups not allocated with new must be set to NULL in the settings
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// tree before object destruction.
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void setEntry(const std::string &name, const void *entry,
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bool set_group, bool set_default);
|
||||
void set(const std::string &name, const std::string &value);
|
||||
void setGroup(const std::string &name, Settings *group);
|
||||
void setDefault(const std::string &name, const std::string &value);
|
||||
void setGroup(const std::string &name, Settings *group);
|
||||
void setGroupDefault(const std::string &name, Settings *group);
|
||||
void setBool(const std::string &name, bool value);
|
||||
void setS16(const std::string &name, s16 value);
|
||||
@ -200,7 +189,8 @@ public:
|
||||
void setV3F(const std::string &name, v3f value);
|
||||
void setFlagStr(const std::string &name, u32 flags,
|
||||
const FlagDesc *flagdesc, u32 flagmask);
|
||||
void setNoiseParams(const std::string &name, const NoiseParams &np);
|
||||
void setNoiseParams(const std::string &name, const NoiseParams &np,
|
||||
bool set_default=false);
|
||||
// N.B. if setStruct() is used to write a non-POD aggregate type,
|
||||
// the behavior is undefined.
|
||||
bool setStruct(const std::string &name, const std::string &format, void *value);
|
||||
|
||||
18
src/test.cpp
18
src/test.cpp
@ -452,7 +452,6 @@ struct TestPath: public TestBase
|
||||
"coord = (1, 2, 4.5)\n" \
|
||||
" # this is just a comment\n" \
|
||||
"this is an invalid line\n" \
|
||||
"asdf = sdfghj\n" \
|
||||
"asdf = {\n" \
|
||||
" a = 5\n" \
|
||||
" bb = 2.5\n" \
|
||||
@ -481,10 +480,6 @@ struct TestPath: public TestBase
|
||||
"floaty_thing_2 = 1.2\n" \
|
||||
"groupy_thing = {\n" \
|
||||
" animals = cute\n" \
|
||||
" animals = {\n" \
|
||||
" cat = meow\n" \
|
||||
" dog = woof\n" \
|
||||
" }\n" \
|
||||
" num_apples = 4\n" \
|
||||
" num_oranges = 53\n" \
|
||||
"}\n"
|
||||
@ -493,6 +488,7 @@ struct TestSettings: public TestBase
|
||||
{
|
||||
void Run()
|
||||
{
|
||||
try {
|
||||
Settings s;
|
||||
|
||||
// Test reading of settings
|
||||
@ -526,8 +522,6 @@ struct TestSettings: public TestBase
|
||||
UASSERT(group->getS16("a") == 5);
|
||||
UASSERT(fabs(group->getFloat("bb") - 2.5) < 0.001);
|
||||
|
||||
s.set("asdf", "sdfghj");
|
||||
|
||||
Settings *group3 = new Settings;
|
||||
group3->set("cat", "meow");
|
||||
group3->set("dog", "woof");
|
||||
@ -536,18 +530,19 @@ struct TestSettings: public TestBase
|
||||
group2->setS16("num_apples", 4);
|
||||
group2->setS16("num_oranges", 53);
|
||||
group2->setGroup("animals", group3);
|
||||
group2->set("animals", "cute");
|
||||
group2->set("animals", "cute"); //destroys group 3
|
||||
s.setGroup("groupy_thing", group2);
|
||||
|
||||
// Test multiline settings
|
||||
UASSERT(group->get("ccc") == "testy\n testa ");
|
||||
s.setGroup("asdf", NULL);
|
||||
|
||||
UASSERT(s.get("blarg") ==
|
||||
"some multiline text\n"
|
||||
" with leading whitespace!");
|
||||
|
||||
// Test NoiseParams
|
||||
UASSERT(s.getEntry("np_terrain").is_group == false);
|
||||
|
||||
NoiseParams np;
|
||||
UASSERT(s.getNoiseParams("np_terrain", np) == true);
|
||||
UASSERT(fabs(np.offset - 5) < 0.001);
|
||||
@ -563,6 +558,8 @@ struct TestSettings: public TestBase
|
||||
np.octaves = 6;
|
||||
s.setNoiseParams("np_terrain", np);
|
||||
|
||||
UASSERT(s.getEntry("np_terrain").is_group == true);
|
||||
|
||||
// Test writing
|
||||
std::ostringstream os(std::ios_base::binary);
|
||||
is.clear();
|
||||
@ -572,6 +569,9 @@ struct TestSettings: public TestBase
|
||||
//printf(">>>> expected config:\n%s\n", TEST_CONFIG_TEXT_AFTER);
|
||||
//printf(">>>> actual config:\n%s\n", os.str().c_str());
|
||||
UASSERT(os.str() == TEST_CONFIG_TEXT_AFTER);
|
||||
} catch (SettingNotFoundException &e) {
|
||||
UASSERT(!"Setting not found!");
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user