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/* -*- C++ -*- */
// $Id$
// ============================================================================
//
// = LIBRARY
// examples/Web_Crawler
//
// = FILENAME
// Options.h
//
// = AUTHOR
// Douglas C. Schmidt <schmidt@cs.wustl.edu>
//
// ============================================================================
#ifndef _OPTIONS_H
#define _OPTIONS_H
#include "ace/Singleton.h"
#include "ace/Synch.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
#define ACE_LACKS_PRAGMA_ONCE
#endif /* ACE_LACKS_PRAGMA_ONCE */
// Forward decls.
class Command_Processor;
class URL_Visitor;
class Options
{
// = TITLE
// Maintains the global options.
//
// = DESCRIPTION
// This class is converted into a Singleton by the
// <ACE_Singleton> template.
public:
int parse_args (int argc, char *argv[]);
// Parse the command-line arguments and initialize the options.
int recurse (void) const;
// If non-0 and the link is an HTML file then recursively check all
// links that are embedded in the body of file.
LPCTSTR hostname (void) const;
// Return the hostname of the initial Web server.
LPCTSTR path_name (void) const;
// Return the initial URI.
LPCTSTR url_filter (void) const;
// String used to filter out which URLs to validate.
int debug (void) const;
// Are we debugging?
int verbose (void) const;
// Are we being verbose?
LPCTSTR order (void) const;
// Which order? LIFO|FIFO??
int port_no (void) const;
// Port #
const ACE_Time_Value *timeout (void) const;
// Return the timeout used to prevent hanging on <recv> and
// <connect> calls to broken servers.
// = Get/set the <Command_Processor>.
Command_Processor *command_processor (void) const;
void command_processor (Command_Processor *);
// = Get/set the <URL_Visitor>.
URL_Visitor *visitor (void) const;
void visitor (URL_Visitor *);
// Get the handle_limit.
int handle_limit (void);
private:
int recurse_;
// Are we recursving.
LPCTSTR hostname_;
// Initial Web server name.
LPCTSTR uri_;
// Initial URI name.
int debug_;
// Are we debugging?
int verbose_;
// Are we being verbose?
LPCTSTR order_;
// Whether the URLs are traversed in FIFO or LIFO order.
ACE_Time_Value timeout_;
// Timeout on <recv> and <connect> to broken Web servers.
LPCTSTR url_filter_;
// String used to filter out which URLs to validate.
Command_Processor *command_processor_;
// Pointer to the Command_Processor.
URL_Visitor *visitor_;
// Pointer to the <URL_Visitor>.
int port_no_;
// Port no.
int handle_limit_;
// The limit of the number of descriptors to be given for this process.
};
// Typedef an Options Singleton.
typedef ACE_Singleton <Options, ACE_Null_Mutex> OPTIONS;
#endif /* _OPTIONS_H */
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