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args: extract lock-requiring internal helpers

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Extract GetSetting_(), GetArgFlags_(), and GetPathArg_() as private
lock-held helpers with EXCLUSIVE_LOCKS_REQUIRED(cs_args) annotations.
Public methods delegate to these after acquiring the lock.

Annotate GetDataDir() with EXCLUSIVE_LOCKS_REQUIRED(cs_args) and move
its lock acquisition into GetDataDirBase()/GetDataDirNet().

Annotate logArgsPrefix() with EXCLUSIVE_LOCKS_REQUIRED(cs_args).

This is a pure refactoring with no behavior change, preparing for
the conversion of cs_args from RecursiveMutex to Mutex.
This commit is contained in:
w0xlt
2026-03-04 11:58:12 -08:00
parent f82d076771
commit 7d61e03c70
2 changed files with 51 additions and 14 deletions
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52
src/common/args.cpp
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@@ -255,9 +255,9 @@ bool ArgsManager::ParseParameters(int argc, const char* const argv[], std::strin
return true;
}
std::optional<unsigned int> ArgsManager::GetArgFlags(const std::string& name) const
std::optional<unsigned int> ArgsManager::GetArgFlags_(const std::string& name) const
{
LOCK(cs_args);
AssertLockHeld(cs_args);
for (const auto& arg_map : m_available_args) {
const auto search = arg_map.second.find(name);
if (search != arg_map.second.end()) {
@@ -267,22 +267,36 @@ std::optional<unsigned int> ArgsManager::GetArgFlags(const std::string& name) co
return m_default_flags;
}
std::optional<unsigned int> ArgsManager::GetArgFlags(const std::string& name) const
{
LOCK(cs_args);
return GetArgFlags_(name);
}
void ArgsManager::SetDefaultFlags(std::optional<unsigned int> flags)
{
LOCK(cs_args);
m_default_flags = flags;
}
fs::path ArgsManager::GetPathArg(std::string arg, const fs::path& default_value) const
fs::path ArgsManager::GetPathArg_(std::string arg, const fs::path& default_value) const
{
if (IsArgNegated(arg)) return fs::path{};
std::string path_str = GetArg(arg, "");
AssertLockHeld(cs_args);
const auto value = GetSetting_(arg);
if (value.isFalse()) return {};
std::string path_str = SettingToString(value, "");
if (path_str.empty()) return default_value;
fs::path result = fs::PathFromString(path_str).lexically_normal();
// Remove trailing slash, if present.
return result.has_filename() ? result : result.parent_path();
}
fs::path ArgsManager::GetPathArg(std::string arg, const fs::path& default_value) const
{
LOCK(cs_args);
return GetPathArg_(std::move(arg), default_value);
}
fs::path ArgsManager::GetBlocksDirPath() const
{
LOCK(cs_args);
@@ -308,15 +322,25 @@ fs::path ArgsManager::GetBlocksDirPath() const
return path;
}
fs::path ArgsManager::GetDataDirBase() const {
LOCK(cs_args);
return GetDataDir(/*net_specific=*/false);
}
fs::path ArgsManager::GetDataDirNet() const {
LOCK(cs_args);
return GetDataDir(/*net_specific=*/true);
}
fs::path ArgsManager::GetDataDir(bool net_specific) const
{
LOCK(cs_args);
AssertLockHeld(cs_args);
fs::path& path = net_specific ? m_cached_network_datadir_path : m_cached_datadir_path;
// Used cached path if available
if (!path.empty()) return path;
const fs::path datadir{GetPathArg("-datadir")};
const fs::path datadir{GetPathArg_("-datadir")};
if (!datadir.empty()) {
path = fs::absolute(datadir);
if (!fs::is_directory(path)) {
@@ -853,15 +877,22 @@ std::variant<ChainType, std::string> ArgsManager::GetChainArg() const
bool ArgsManager::UseDefaultSection(const std::string& arg) const
{
AssertLockHeld(cs_args);
return m_network == ChainTypeToString(ChainType::MAIN) || !m_network_only_args.contains(arg);
}
common::SettingsValue ArgsManager::GetSetting_(const std::string& arg) const
{
AssertLockHeld(cs_args);
return common::GetSetting(
m_settings, m_network, SettingName(arg), !UseDefaultSection(arg),
/*ignore_nonpersistent=*/false, /*get_chain_type=*/false);
}
common::SettingsValue ArgsManager::GetSetting(const std::string& arg) const
{
LOCK(cs_args);
return common::GetSetting(
m_settings, m_network, SettingName(arg), !UseDefaultSection(arg),
/*ignore_nonpersistent=*/false, /*get_chain_type=*/false);
return GetSetting_(arg);
}
std::vector<common::SettingsValue> ArgsManager::GetSettingsList(const std::string& arg) const
@@ -875,6 +906,7 @@ void ArgsManager::logArgsPrefix(
const std::string& section,
const std::map<std::string, std::vector<common::SettingsValue>>& args) const
{
AssertLockHeld(cs_args);
std::string section_str = section.empty() ? "" : "[" + section + "] ";
for (const auto& arg : args) {
for (const auto& value : arg.second) {