124 lines
3.6 KiB
C++
Executable File
124 lines
3.6 KiB
C++
Executable File
// $Id: mailbox.h,v 1.3 1994-09-28 10:35:46 villa Exp $
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/* si', trattasi di -*-c++-*- */
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// Mailbox.h
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// Message passing between applications and command lines
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#ifndef __MAILBOX_H
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#define __MAILBOX_H
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#ifndef __ARRAY_H
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#include <array.h>
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#endif
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#ifndef __STRINGS_H
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#include <strings.h>
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#endif
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// TMessage flags
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#define MSG_READ (0x01)
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class TMessage : public TObject
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// basic message
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{
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TString _from;
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TString _to;
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TString _subject;
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TString _text;
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byte _flags;
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int _number;
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friend class TMailbox;
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void setread() { _flags |= MSG_READ; }
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bool isread() { return _flags & MSG_READ; }
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int number(int n = -1)
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{ return (n == -1 ? _number : (_number = n)); }
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public:
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const char* from(const char* f = NULL) // get-set sender
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{ return f == NULL ? _from : (_from = f); }
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const char* to (const char* f = NULL) // get-set recipient
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{ return f == NULL ? _to : (_to = f); }
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const char* subject(const char* f = NULL) // get-set subject
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{ return f == NULL ? _subject : (_subject = f); }
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const char* body(const char* f = NULL) // get-set body
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{ return f == NULL ? _text : (_text = f); }
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void send();
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TMessage(const char* to, const char* sub, const char* text,
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const char* from = NULL);
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};
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class TMailbox : public TObject
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{
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TFilename _path;
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TArray _msgs;
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int _lastread, n_new;
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long _lastpos;
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int _cnt;
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protected:
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void reread();
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TMessage* next_read();
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TMessage* next_unread();
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public:
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int check() // return
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{ reread(); return n_new; } // n. of messages waiting
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void restart() { _cnt = 0;} // reinitialize read phase
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int items() // n. of read+unread messages
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{ return _msgs.items(); } // in mailbox
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TMessage* next(bool read = FALSE); // get next message; if
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// TRUE passed, get read mess. too
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TMessage* next_s(char* s, bool read = FALSE); // next w/ matching subject
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TMessage* next_f(char* f, bool read = FALSE); // next w/ matching sender
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void send(TMessage& m); // send a message
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void sendcmd(int argc, char* argv[],
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char* to); // transform commandline args
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// in mail messages
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// NOT IMPLEMENTED
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char* readcmd(char* to = NULL); // transform mailbox in
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// cmdline parms for calling
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// non_compliant applications
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// NOT IMPLEMENTED
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TMessage* get(int n) // nth message
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{ return (TMessage*)_msgs.objptr(n); }
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TMailbox::TMailbox(const char* appname = NULL);
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virtual ~TMailbox();
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};
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// instead of using commandline args directly, user posts
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// messages to application, then calls it without arguments
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// If the application is called by the user with command_line
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// arguments, sendcmd parses them and translates to messages
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// according to the following rules:
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//
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// from is "cmdline"
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//
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// subject comes from arguments of type -opt=value
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// (opt becomes subject and value becomes body)
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//
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// args like -opt="val, val, val" create
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// one message for each val, with the same subject=opt
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//
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// -opt arg creates subject=opt and empty body
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//
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// one-word arguments create a message with "null" subject
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//
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// A mailbox should be member of applicat and sendcmd should be
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// called automatically upon startup
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// Non compliant applications (which do not use mailbox) can be
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// called consistently by sending messages,
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// appending TMailbox::readcmd(appname) to
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// their name and doing an exec()
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#endif
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