added ace + vcproj for win

--HG-- branch : trunk
2010-06-07 19:10:55 +02:00
parent 2e0f8fb6e5
commit 32546e2282
1316 changed files with 335947 additions and 0 deletions
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+// -*- C++ -*-
+
+//=============================================================================
+/**
+ *  @file    Logging_Strategy.h
+ *
+ *  $Id: Logging_Strategy.h 89512 2010-03-17 14:42:24Z vzykov $
+ *
+ *  @author Prashant Jain <[email protected]>
+ *  @author Orlando Ribeiro <[email protected]>
+ */
+//=============================================================================
+
+#ifndef ACE_LOGGING_STRATEGY_H
+#define ACE_LOGGING_STRATEGY_H
+
+#include "ace/Service_Object.h"
+#include "ace/Log_Msg.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+#if !defined (ACE_DEFAULT_LOGFILE_POLL_INTERVAL)
+#define ACE_DEFAULT_LOGFILE_POLL_INTERVAL 600 /* Seconds */
+#endif /* ACE_DEFAULT_LOGFILE_POLL_INTERVAL */
+
+ACE_BEGIN_VERSIONED_NAMESPACE_DECL
+
+/**
+ * @class ACE_Logging_Strategy
+ *
+ * @brief This class provides a way to dynamically configure the ACE logging
+ * mechanism at run time as well as enable the mechanisms for limiting
+ * log file size and log file backup/rotation capability.
+ *
+ * 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 @param sample_interval_in_secs and -m
+ * @param max_size_in_KB options for the Logging_Strategy class in a
+ * svc.conf file.
+ *
+ * By default, two logfiles are generated.  It's possible, however, to
+ * generate as many logfiles as necessary to store all the
+ * information.  To achieve this, it is only necessary to indicate the
+ * maximum size of the logfiles via the -m option and the process will
+ * generate automatically the logfiles.  You can control the total
+ * number of logfiles created via the -n option.
+ *
+ * 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 @c ACE_Logging_Strategy uses the singleton reactor,
+ * i.e., what's returned by @c ACE_Reactor::instance().  If you want
+ * to set the reactor used by @c ACE_Logging_Strategy to something
+ * other than the singleton reactor you'll need to get a pointer to
+ * the @c 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 @c ACE_Logging_Strategy then you can use
+ * the @c ACE_Dynamic_Service template to get a pointer to the
+ * @c ACE_Logging_Strategy.
+ */
+class ACE_Export ACE_Logging_Strategy : public ACE_Service_Object
+{
+public:
+  /// Constructor.
+  ACE_Logging_Strategy (void);
+
+  /// Destructor.
+  ~ACE_Logging_Strategy (void);
+
+  /// Dynamic linking initialization hook.
+  virtual int init (int argc, ACE_TCHAR *argv[]);
+
+  /// Dynamic linking termination hook.
+  virtual int fini (void);
+
+  /**
+   * Timeout handler which tests logfile size.  If the current logfile
+   * size exceeds @c max_size_, the current logfile is closed, saved to
+   * logfile.old, and a new logfile is reopened.
+   */
+  virtual int handle_timeout (const ACE_Time_Value& tv,
+                              const void* arg);
+
+  /**
+   * This function helps to cancel timer events for this logging strategy
+   * in reactor during shutdown.
+   */
+  virtual int handle_close (ACE_HANDLE,
+                            ACE_Reactor_Mask);
+
+  /**
+   * Reactor accessors. If reactor changes then we need remove this
+   * event handler from previous reactor and scheduler for timer events
+   * in a new one.
+   */
+  virtual void reactor (ACE_Reactor *r);
+
+  virtual ACE_Reactor * reactor (void) const;
+
+  /**
+   * Parse arguments provided in svc.conf file.
+   * @arg '-f' Pass in the flags (such as OSTREAM, STDERR, LOGGER, VERBOSE,
+   *           SILENT, VERBOSE_LITE) used to control logging.
+   * @arg '-i' The interval (in seconds) at which the logfile size is sampled
+   *           (default is 0, i.e., do not sample by default).
+   * @arg '-k' Set the logging key.
+   * @arg '-m' Maximum logfile size in Kbytes.
+   * @arg '-n' Set the program name for the %n format specifier.
+   * @arg '-N' The maximum number of logfiles that we want created.
+   * @arg '-o' Specifies that we want the no standard logfiles ordering
+   *           (fastest processing in handle_timeout()).  Default is not to
+   *           order logfiles.
+   * @arg '-p' Pass in the process-wide priorities to either enable (e.g.,
+   *           DEBUG, INFO, WARNING, NOTICE, ERROR, CRITICAL, ALERT,
+   *           EMERGENCY) or to disable (e.g., ~DEBUG, ~INFO, ~WARNING,
+   *           ~NOTICE, ~ERROR, ~CRITICAL, ~ALERT, ~EMERGENCY).
+   * @arg '-s' Ensure that the OSTREAM flag is set and log to the @a filename.
+   * @arg '-t' Pass in the thread-wide priorities to either enable (e.g.,
+   *           DEBUG, INFO, WARNING, NOTICE, ERROR, CRITICAL, ALERT,
+   *           EMERGENCY) or to disable (e.g., ~DEBUG, ~INFO, ~WARNING,
+   *           ~NOTICE, ~ERROR, ~CRITICAL, ~ALERT, ~EMERGENCY).
+   * @arg '-w' Cause the logfile to be wiped out, both on startup and on
+   *           reconfiguration.
+   */
+  int parse_args (int argc, ACE_TCHAR *argv[]);
+
+  void log_msg (ACE_Log_Msg *log_msg);
+
+protected:
+  /// Tokenize to set all the flags
+  void tokenize (ACE_TCHAR *flag_string);
+
+  /// Tokenize to set priorities (either process or thread one).
+  void priorities (ACE_TCHAR *priority_string,
+                   ACE_Log_Msg::MASK_TYPE mask);
+
+  /// Current thread's priority mask set by @c priorities
+  u_long thread_priority_mask_;
+
+  /// Process-wide priority mask set by @c priorities
+  u_long process_priority_mask_;
+
+  /// Flags we keep track of.
+  u_long flags_;
+
+  /// File name we're logging to.
+  ACE_TCHAR *filename_;
+
+  /// Logger key for distributed logging.
+  ACE_TCHAR *logger_key_;
+
+  /// Program name to be used for %n format specifier.
+  ACE_TCHAR *program_name_;
+
+  /// If non-0 then wipeout the logfile, otherwise append to it.
+  /// Default value is 0.
+  bool wipeout_logfile_;
+
+  /// If non-0 we have a maximum number of log files we can write.
+  /// Default value is 0, i.e., no maximum number.
+  bool fixed_number_;
+
+  /// If non-0 we order the files as we rotate them.  Default value
+  /// is 0, i.e., we do not rotate files by default.
+  bool order_files_;
+
+  /// This tells us in what file we last wrote. It will be increased
+  /// to enable multiple log files
+  int count_;
+
+  /// Tells us what is the maximum log file to write. We will write
+  /// @c max_file_number_ + 1 files (includes the current log file).
+  /// Default value is 1, i.e., 2 files by default.
+  int max_file_number_;
+
+  /// If non-zero, sampling interval (in secs) at which maximum logfile
+  /// size is checked, otherwise logfile size can grow indefinitely.
+  /// Default value is 0.
+  u_long interval_;
+
+  /// Maximum logfile size (in KB).  Default value is
+  /// ACE_DEFAULT_MAX_LOGFILE_SIZE.
+  u_long max_size_;
+
+  /// ACE_Log_Msg instance to work with
+  ACE_Log_Msg *log_msg_;
+};
+
+ACE_END_VERSIONED_NAMESPACE_DECL
+
+ACE_STATIC_SVC_DECLARE_EXPORT(ACE, ACE_Logging_Strategy)
+
+ACE_FACTORY_DECLARE (ACE, ACE_Logging_Strategy)
+
+#endif /* ACE_LOGGING_STRATEGY_H */