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deb-goldedplus/goldlib/gmb3/gmojamm2.cpp

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// This may look like C code, but it is really -*- C++ -*-
// ------------------------------------------------------------------
// The Goldware Library
// Copyright (C) 1990-1999 Odinn Sorensen
// ------------------------------------------------------------------
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this program; if not, write to the Free
// Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
// MA 02111-1307, USA
// ------------------------------------------------------------------
// $Id$
// ------------------------------------------------------------------
// JAM msgbase implementation, scanning.
// ------------------------------------------------------------------
#include <cerrno>
#include <gdbgerr.h>
#include <gmemdbg.h>
#include <gdbgtrk.h>
#include <gstrall.h>
#include <gcrcall.h>
#include <gmojamm.h>
// ------------------------------------------------------------------
void JamArea::data_open() {
wide = jamwide;
data = jamdata + (jamdatano++);
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data->fhjhr = data->fhjdt = data->fhjdx = data->fhjlr = data->fhjhw = -1;
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data->islocked = false;
data->timesposted = 0;
data->lastpos = 0;
}
// ------------------------------------------------------------------
void JamArea::data_close() {
jamdatano--;
}
// ------------------------------------------------------------------
int JamArea::test_open(const char* file) {
GFTRK("JamArea::test_open");
int fh;
long tries = 0;
do {
fh = ::sopen(file, O_RDWR|O_CREAT|O_BINARY, WideSharemode, S_STDRW);
if(fh == -1) {
// Tell the world
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if((errno != EACCES) or (PopupLocked(++tries, false, file) == false)) {
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WideLog->ErrOpen();
raw_close();
WideLog->printf("! A JAM msgbase file could not be opened.");
WideLog->printf(": %s.", file);
WideLog->ErrOSInfo();
OpenErrorExit();
}
}
} while(fh == -1);
// Remove the popup window
if(tries)
PopupLocked(0, 0, NULL);
GFTRK(NULL);
return fh;
}
// ------------------------------------------------------------------
void JamArea::raw_open() {
GFTRK("JamArea::raw_open");
Path file;
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sprintf(file, "%s.jhr", real_path()); data->fhjhr = test_open(file);
sprintf(file, "%s.jdx", real_path()); data->fhjdx = test_open(file);
sprintf(file, "%s.jlr", real_path()); data->fhjlr = test_open(file);
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if(not just_scanning) {
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sprintf(file, "%s.jdt", real_path()); data->fhjdt = test_open(file);
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if(not jamwide->smapihw) {
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sprintf(file, "%s.cmhw", real_path()); data->fhjhw = ::sopen(file, O_RDWR|O_BINARY, WideSharemode, S_STDRW);
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}
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}
GFTRK(NULL);
}
// ------------------------------------------------------------------
void JamArea::raw_close() {
GFTRK("JamArea::raw_close");
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if(data->fhjlr != -1) { ::close(data->fhjlr); data->fhjlr = -1; }
if(data->fhjdx != -1) { ::close(data->fhjdx); data->fhjdx = -1; }
if(data->fhjdt != -1) { ::close(data->fhjdt); data->fhjdt = -1; }
if(data->fhjhr != -1) { ::close(data->fhjhr); data->fhjhr = -1; }
if(data->fhjhw != -1) { ::close(data->fhjhw); data->fhjhw = -1; }
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GFTRK(NULL);
}
// ------------------------------------------------------------------
void JamArea::open_area() {
GFTRK("JamArea::open_area");
// Open the msgbase files
raw_open();
// Read the header info
memset(&data->hdrinfo, 0, sizeof(JamHdrInfo));
read(data->fhjhr, &data->hdrinfo, sizeof(JamHdrInfo));
if(not jamwide->smapihw and (data->fhjhw != -1)) {
lseek(data->fhjhw, 0, SEEK_SET);
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read(data->fhjhw, &data->highwater, sizeof(long));
}
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else
data->highwater = -1;
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// Is the signature invalid?
if(memcmp(data->hdrinfo.signature, JAM_SIGNATURE, 4)) {
// Initialize header info
memcpy(data->hdrinfo.signature, JAM_SIGNATURE, 4);
time_t a = time(NULL);
struct tm *tp = gmtime(&a);
tp->tm_isdst = -1;
time_t b = mktime(tp);
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data->hdrinfo.datecreated = a + a - b;
data->hdrinfo.passwordcrc = 0xFFFFFFFFL;
data->hdrinfo.basemsgnum = 1;
// Write header info
lseekset(data->fhjhr, 0);
write(data->fhjhr, &data->hdrinfo, sizeof(JamHdrInfo));
}
// Adjust base msg number if necessary
if(data->hdrinfo.basemsgnum == 0)
data->hdrinfo.basemsgnum = 1;
// Seek to beginning of the .JLR
lseekset(data->fhjlr, 0);
// Search for the userid (not the usercrc?!)
data->lastpos = 0;
int founduser = false;
while(read(data->fhjlr, &data->lastrec, sizeof(JamLast)) == sizeof(JamLast)) {
if(data->lastrec.usercrc == wide->usercrc) {
founduser = true;
break;
}
data->lastpos++;
}
// If user was not found, init the lastread with our values
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if(not founduser) {
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data->lastrec.usercrc = wide->usercrc;
data->lastrec.userid = wide->userid;
data->lastrec.lastread = 0;
data->lastrec.highread = 0;
}
data->timesposted = 0;
GFTRK(NULL);
}
// ------------------------------------------------------------------
void JamArea::raw_scan(int __keep_index, int __scanpm) {
GFTRK("JamRawScan");
// Open the msgbase if it wasn't already
int _was_open = isopen;
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if(not _was_open) {
if(not __keep_index or __scanpm)
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just_scanning = true;
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if(ispacked()) {
const char* newpath = Unpack(path());
if(newpath == NULL)
packed(false);
set_real_path(newpath ? newpath : path());
}
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isopen++;
data_open();
open_area();
just_scanning = false;
}
// Get some sizes
long _jdxlen = filelength(data->fhjdx);
uint _jdxsize = (uint)_jdxlen;
uint _jdxtotal = _jdxsize / sizeof(JamIndex);
// (Re)Allocate message index
if(__keep_index)
Msgn->Resize(_jdxtotal);
// Allocate buffer to hold .JDX data
JamIndex* _jdxbuf = (JamIndex*)throw_malloc(_jdxsize+1);
// Read the entire .JDX file into memory
lseekset(data->fhjdx, 0);
read(data->fhjdx, _jdxbuf, _jdxsize);
// Variables for the loop
register uint _active = 0;
register ulong _firstmsgno = 0;
register ulong _lastmsgno = 0;
register ulong _lastreadfound = 0;
register ulong _msgno = data->hdrinfo.basemsgnum;
register ulong _total = data->hdrinfo.basemsgnum + _jdxtotal;
register ulong _lastread = data->lastrec.lastread;
register uint _lastread_reln = 0;
register ulong* _msgndxptr = Msgn->tag;
register JamIndex* _jdxptr = _jdxbuf;
// Fill message index
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while(_msgno < _total) {
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if(_jdxptr->hdroffset != 0xFFFFFFFFL) {
_active++;
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if(not _firstmsgno)
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_firstmsgno = _msgno;
if(__keep_index)
*_msgndxptr++ = _msgno;
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if((_msgno >= _lastread) and (_lastread_reln == 0)) {
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_lastreadfound = _msgno;
_lastread_reln = (uint)(_active - (_msgno != _lastread ? 1 : 0));
}
_lastmsgno = _msgno;
}
_jdxptr++;
_msgno++;
}
// If the exact lastread was not found
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if(_active and (_lastreadfound != _lastread)) {
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// Higher than highest or lower than lowest?
if(_lastread > _lastmsgno)
_lastread_reln = _active;
else if(_lastread < _firstmsgno)
_lastread_reln = 0;
}
// Update area data
Msgn->SetCount(_active);
lastread = _lastread_reln;
lastreadentry = _lastreadfound;
// Scan for personal mail
if(__scanpm) {
INam uname;
int umax = (WidePersonalmail & PM_ALLNAMES) ? WideUsernames : 1;
dword* ucrc = (dword*)throw_calloc(umax, sizeof(dword));
for(int uc=0; uc<umax; uc++) {
strlwr(strcpy(uname, WideUsername[uc]));
ucrc[uc] = strCrc32(uname, NO, CRC32_MASK_CCITT);
}
PMrk->ResetAll();
register uint n = lastread + 1;
register uint cnt = Msgn->Count();
register int gotpm = false;
while(n <= cnt) {
JamIndex* idx = _jdxbuf + (uint)(Msgn->at(n-1) - data->hdrinfo.basemsgnum);
for(int u=0; u<umax; u++) {
if(idx->usercrc == ucrc[u]) {
gotpm = true;
break;
}
}
if(gotpm) {
JamHdr hdr;
lseekset(data->fhjhr, idx->hdroffset);
read(data->fhjhr, &hdr, sizeof(JamHdr));
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if(not (hdr.attribute & JAMATTR_READ)) {
if(not (hdr.attribute & JAMATTR_DELETED)) {
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PMrk->Append(hdr.messagenumber);
}
}
gotpm = false;
}
n++;
}
throw_free(ucrc);
}
if(WideDebug) {
WideLog->printf("- %s: t:%u, l:%u, fm:%lu, hm:%lu, lr:%lu, u:%lu, pm:%i",
echoid(),
Msgn->Count(),
lastread,
_firstmsgno,
_lastmsgno,
_lastread,
data->lastpos,
__scanpm ? (int)PMrk->Count() : -1
);
}
// Free the .JDX buffer
throw_free(_jdxbuf);
// Close the msgbase again if we opened it in here
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if(not _was_open) {
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raw_close();
data_close();
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if(ispacked()) {
CleanUnpacked(real_path());
}
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isopen--;
}
GFTRK(NULL);
}
// ------------------------------------------------------------------
void JamArea::scan() {
GFTRK("JamArea::scan");
raw_scan(true);
GFTRK(NULL);
}
// ------------------------------------------------------------------
void JamArea::scan_area() {
GFTRK("JamArea::scan_area");
raw_scan(false);
GFTRK(NULL);
}
// ------------------------------------------------------------------
void JamArea::scan_area_pm() {
GFTRK("JamArea::scan_area_pm");
raw_scan(true, true);
Msgn->Reset();
GFTRK(NULL);
}
// ------------------------------------------------------------------