#include <Logging_Strategy.h>
Public Member Functions | |
ACE_Logging_Strategy (void) | |
Constructor. | |
~ACE_Logging_Strategy (void) | |
Destructor. | |
virtual int | init (int argc, ACE_TCHAR *argv[]) |
Dynamic linking initialization hook. | |
virtual int | fini (void) |
Dynamic linking termination hook. | |
virtual int | handle_timeout (const ACE_Time_Value &tv, const void *arg) |
int | parse_args (int argc, ACE_TCHAR *argv[]) |
void | log_msg (ACE_Log_Msg *log_msg) |
Protected Member Functions | |
void | tokenize (ACE_TCHAR *flag_string) |
Tokenize to set all the flags. | |
void | priorities (ACE_TCHAR *priority_string, ACE_Log_Msg::MASK_TYPE mask) |
Tokenize to set priorities (either process or thread one). | |
Protected Attributes | |
u_long | thread_priority_mask_ |
Current thread's priority mask set by priorities . | |
u_long | process_priority_mask_ |
Process-wide priority mask set by priorities . | |
u_long | flags_ |
Flags we keep track of. | |
ACE_TCHAR * | filename_ |
File name we're logging to. | |
ACE_TCHAR * | logger_key_ |
Logger key for distributed logging. | |
ACE_TCHAR * | program_name_ |
Program name to be used for n format specifier. | |
bool | wipeout_logfile_ |
bool | fixed_number_ |
bool | order_files_ |
int | count_ |
int | max_file_number_ |
u_long | interval_ |
u_long | max_size_ |
ACE_Log_Msg * | log_msg_ |
ACE_Log_Msg instance to work with. |
Depending upon when this service is invoked and with what flags, the output of other network services can be controlled. The output can be streamed to stderr, to a file, to a logging daemon, or it can be set to be "silent". If logging records are output to a file, the file can be set to a maximum size and repeatedly split into new files. The log file size can be limited at any logging point (i.e., application, client logging daemon, or server logging daemon) by specifying the -i
sample_interval_in_secs | and -m | |
max_size_in_KB | options for the Logging_Strategy class in a svc.conf file. |
By using the -o option we can also choose the mode of organization of the files, e.g., the first one is the normal used in Unix systems (when cron rotates the logs it keeps the lowest number the most recent one), the second is for increasing speed (we only create a new log file, and don't rotate the others (fewer accesses to disk)).
By default, the ACE_Logging_Strategy
uses the singleton reactor, i.e., what's returned by ACE_Reactor::instance()
. If you want to set the reactor used by ACE_Logging_Strategy
to something other than the singleton reactor you'll need to get a pointer to the ACE_Logging_Strategy
instance and do this
ACE_Reactor my_reactor; ACE_Logging_Strategy *logging_strategy = ...... // Get instance.
logging_strategy->reactor (&my_reactor);
and then logging_strategy will use your reactor. If you're dynamically linking the ACE_Logging_Strategy
then you can use the ACE_Dynamic_Service
template to get a pointer to the ACE_Logging_Strategy
.
ACE_Logging_Strategy::ACE_Logging_Strategy | ( | void | ) |
Constructor.
ACE_Logging_Strategy::~ACE_Logging_Strategy | ( | void | ) |
Destructor.
int ACE_Logging_Strategy::fini | ( | void | ) | [virtual] |
int ACE_Logging_Strategy::handle_timeout | ( | const ACE_Time_Value & | tv, | |
const void * | arg | |||
) | [virtual] |
Timeout handler which tests logfile size. If the current logfile size exceeds max_size_
, the current logfile is closed, saved to logfile.old, and a new logfile is reopened.
Reimplemented from ACE_Event_Handler.
int ACE_Logging_Strategy::init | ( | int | argc, | |
ACE_TCHAR * | argv[] | |||
) | [virtual] |
void ACE_Logging_Strategy::log_msg | ( | ACE_Log_Msg * | log_msg | ) |
int ACE_Logging_Strategy::parse_args | ( | int | argc, | |
ACE_TCHAR * | argv[] | |||
) |
Parse arguments provided in svc.conf file.
void ACE_Logging_Strategy::priorities | ( | ACE_TCHAR * | priority_string, | |
ACE_Log_Msg::MASK_TYPE | mask | |||
) | [protected] |
Tokenize to set priorities (either process or thread one).
void ACE_Logging_Strategy::tokenize | ( | ACE_TCHAR * | flag_string | ) | [protected] |
Tokenize to set all the flags.
int ACE_Logging_Strategy::count_ [protected] |
This tells us in what file we last wrote. It will be increased to enable multiple log files
ACE_TCHAR* ACE_Logging_Strategy::filename_ [protected] |
File name we're logging to.
bool ACE_Logging_Strategy::fixed_number_ [protected] |
If non-0 we have a maximum number of log files we can write. Default value is 0, i.e., no maximum number.
u_long ACE_Logging_Strategy::flags_ [protected] |
Flags we keep track of.
u_long ACE_Logging_Strategy::interval_ [protected] |
If non-zero, sampling interval (in secs) at which maximum logfile size is checked, otherwise logfile size can grow indefinitely. Default value is 0.
ACE_Log_Msg* ACE_Logging_Strategy::log_msg_ [protected] |
ACE_Log_Msg instance to work with.
ACE_TCHAR* ACE_Logging_Strategy::logger_key_ [protected] |
Logger key for distributed logging.
int ACE_Logging_Strategy::max_file_number_ [protected] |
Tells us what is the maximum log file to write. We will write max_file_number_
+ 1 files (includes the current log file). Default value is 1, i.e., 2 files by default.
u_long ACE_Logging_Strategy::max_size_ [protected] |
Maximum logfile size (in KB). Default value is ACE_DEFAULT_MAX_LOGFILE_SIZE.
bool ACE_Logging_Strategy::order_files_ [protected] |
If non-0 we order the files as we rotate them. Default value is 0, i.e., we do not rotate files by default.
u_long ACE_Logging_Strategy::process_priority_mask_ [protected] |
Process-wide priority mask set by priorities
.
ACE_TCHAR* ACE_Logging_Strategy::program_name_ [protected] |
Program name to be used for n format specifier.
u_long ACE_Logging_Strategy::thread_priority_mask_ [protected] |
Current thread's priority mask set by priorities
.
bool ACE_Logging_Strategy::wipeout_logfile_ [protected] |
If non-0 then wipeout the logfile, otherwise append to it. Default value is 0.