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mlog: --max-log-files to set the max number of rotated log files

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stoffu 2018-06-01 12:29:26 +09:00
parent 8a7b3ff138
commit 63d0ab09b5
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GPG key ID: 41DAB8343A9EC012
5 changed files with 63 additions and 5 deletions
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3
contrib/epee/include/misc_log_ex.h
View file

@ -34,6 +34,7 @@
#define MONERO_DEFAULT_LOG_CATEGORY "default"
#define MAX_LOG_FILE_SIZE 104850000 // 100 MB - 7600 bytes
#define MAX_LOG_FILES 50
#define MCFATAL(cat,x) CLOG(FATAL,cat) << x
#define MCERROR(cat,x) CLOG(ERROR,cat) << x
@ -105,7 +106,7 @@
#endif
std::string mlog_get_default_log_path(const char *default_filename);
void mlog_configure(const std::string &filename_base, bool console, const std::size_t max_log_file_size = MAX_LOG_FILE_SIZE);
void mlog_configure(const std::string &filename_base, bool console, const std::size_t max_log_file_size = MAX_LOG_FILE_SIZE, const std::size_t max_log_files = MAX_LOG_FILES);
void mlog_set_categories(const char *categories);
std::string mlog_get_categories();
void mlog_set_log_level(int level);

53
contrib/epee/src/mlog.cpp
View file

@ -116,7 +116,7 @@ static const char *get_default_categories(int level)
return categories;
}
void mlog_configure(const std::string &filename_base, bool console, const std::size_t max_log_file_size)
void mlog_configure(const std::string &filename_base, bool console, const std::size_t max_log_file_size, const std::size_t max_log_files)
{
el::Configurations c;
c.setGlobally(el::ConfigurationType::Filename, filename_base);
@ -134,9 +134,58 @@ void mlog_configure(const std::string &filename_base, bool console, const std::s
el::Loggers::addFlag(el::LoggingFlag::DisableApplicationAbortOnFatalLog);
el::Loggers::addFlag(el::LoggingFlag::ColoredTerminalOutput);
el::Loggers::addFlag(el::LoggingFlag::StrictLogFileSizeCheck);
el::Helpers::installPreRollOutCallback([filename_base](const char *name, size_t){
el::Helpers::installPreRollOutCallback([filename_base, max_log_files](const char *name, size_t){
std::string rname = generate_log_filename(filename_base.c_str());
rename(name, rname.c_str());
if (max_log_files != 0)
{
std::vector<boost::filesystem::path> found_files;
const boost::filesystem::directory_iterator end_itr;
for (boost::filesystem::directory_iterator iter(boost::filesystem::path(filename_base).parent_path()); iter != end_itr; ++iter)
{
const std::string filename = iter->path().string();
if (filename.size() >= filename_base.size() && std::memcmp(filename.data(), filename_base.data(), filename_base.size()) == 0)
{
found_files.push_back(iter->path());
}
}
if (found_files.size() >= max_log_files)
{
std::sort(found_files.begin(), found_files.end(), [](const boost::filesystem::path &a, const boost::filesystem::path &b) {
boost::system::error_code ec;
std::time_t ta = boost::filesystem::last_write_time(boost::filesystem::path(a), ec);
if (ec)
{
MERROR("Failed to get timestamp from " << a << ": " << ec);
ta = std::time(nullptr);
}
std::time_t tb = boost::filesystem::last_write_time(boost::filesystem::path(b), ec);
if (ec)
{
MERROR("Failed to get timestamp from " << b << ": " << ec);
tb = std::time(nullptr);
}
static_assert(std::is_integral<time_t>(), "bad time_t");
return ta < tb;
});
for (size_t i = 0; i <= found_files.size() - max_log_files; ++i)
{
try
{
boost::system::error_code ec;
boost::filesystem::remove(found_files[i], ec);
if (ec)
{
MERROR("Failed to remove " << found_files[i] << ": " << ec);
}
}
catch (const std::exception &e)
{
MERROR("Failed to remove " << found_files[i] << ": " << e.what());
}
}
}
}
});
mlog_set_common_prefix();
const char *monero_log = getenv("MONERO_LOGS");

5
src/daemon/command_line_args.h
View file

@ -72,6 +72,11 @@ namespace daemon_args
, "Specify maximum log file size [B]"
, MAX_LOG_FILE_SIZE
};
const command_line::arg_descriptor<std::size_t> arg_max_log_files = {
"max-log-files"
, "Specify maximum number of rotated log files to be saved (no limit by setting to 0)"
, MAX_LOG_FILES
};
const command_line::arg_descriptor<std::string> arg_log_level = {
"log-level"
, ""

3
src/daemon/main.cpp
View file

@ -84,6 +84,7 @@ int main(int argc, char const * argv[])
command_line::add_arg(core_settings, daemon_args::arg_log_file);
command_line::add_arg(core_settings, daemon_args::arg_log_level);
command_line::add_arg(core_settings, daemon_args::arg_max_log_file_size);
command_line::add_arg(core_settings, daemon_args::arg_max_log_files);
command_line::add_arg(core_settings, daemon_args::arg_max_concurrency);
command_line::add_arg(core_settings, daemon_args::arg_zmq_rpc_bind_ip);
command_line::add_arg(core_settings, daemon_args::arg_zmq_rpc_bind_port);
@ -203,7 +204,7 @@ int main(int argc, char const * argv[])
if (!command_line::is_arg_defaulted(vm, daemon_args::arg_log_file))
log_file_path = command_line::get_arg(vm, daemon_args::arg_log_file);
log_file_path = bf::absolute(log_file_path, relative_path_base);
mlog_configure(log_file_path.string(), true, command_line::get_arg(vm, daemon_args::arg_max_log_file_size));
mlog_configure(log_file_path.string(), true, command_line::get_arg(vm, daemon_args::arg_max_log_file_size), command_line::get_arg(vm, daemon_args::arg_max_log_files));
// Set log level
if (!command_line::is_arg_defaulted(vm, daemon_args::arg_log_level))

4
src/wallet/wallet_args.cpp
View file

@ -101,6 +101,7 @@ namespace wallet_args
const command_line::arg_descriptor<std::string> arg_log_level = {"log-level", "0-4 or categories", ""};
const command_line::arg_descriptor<std::size_t> arg_max_log_file_size = {"max-log-file-size", "Specify maximum log file size [B]", MAX_LOG_FILE_SIZE};
const command_line::arg_descriptor<std::size_t> arg_max_log_files = {"max-log-files", "Specify maximum number of rotated log files to be saved (no limit by setting to 0)", MAX_LOG_FILES};
const command_line::arg_descriptor<uint32_t> arg_max_concurrency = {"max-concurrency", wallet_args::tr("Max number of threads to use for a parallel job"), DEFAULT_MAX_CONCURRENCY};
const command_line::arg_descriptor<std::string> arg_log_file = {"log-file", wallet_args::tr("Specify log file"), ""};
const command_line::arg_descriptor<std::string> arg_config_file = {"config-file", wallet_args::tr("Config file"), "", true};
@ -119,6 +120,7 @@ namespace wallet_args
command_line::add_arg(desc_params, arg_log_file);
command_line::add_arg(desc_params, arg_log_level);
command_line::add_arg(desc_params, arg_max_log_file_size);
command_line::add_arg(desc_params, arg_max_log_files);
command_line::add_arg(desc_params, arg_max_concurrency);
command_line::add_arg(desc_params, arg_config_file);
@ -180,7 +182,7 @@ namespace wallet_args
log_path = command_line::get_arg(vm, arg_log_file);
else
log_path = mlog_get_default_log_path(default_log_name);
mlog_configure(log_path, log_to_console, command_line::get_arg(vm, arg_max_log_file_size));
mlog_configure(log_path, log_to_console, command_line::get_arg(vm, arg_max_log_file_size), command_line::get_arg(vm, arg_max_log_files));
if (!command_line::is_arg_defaulted(vm, arg_log_level))
{
mlog_set_log(command_line::get_arg(vm, arg_log_level).c_str());