Support for sequence file locking in inc(1).

diff --git a/uip/inc.c b/uip/inc.c
index 2b4c7ce9984a67d24d147ecbbd1c5b6e27f0c3d5..f169fc7d81db995cf9f09c66dcfee8f90e5aa468 100644 (file)
--- a/uip/inc.c
+++ b/uip/inc.c
@@ -593,14 +593,6 @@ go_to_it:
                adios (NULL, "unable to fdopen %s", packfile);
        } else {
            hghnum = msgnum = mp->hghmsg;
-           /*
-            * Check if we have enough message space for all the new
-            * messages.  If not, then realloc the folder and add enough
-            * space for all new messages plus 10 additional slots.
-            */
-           if (mp->hghmsg + nmsgs >= mp->hghoff
-               && !(mp = folder_realloc (mp, mp->lowoff, mp->hghmsg + nmsgs + 10)))
-               adios (NULL, "unable to allocate folder storage");
        }
 
        for (i = 1; i <= nmsgs; i++) {
@@ -658,12 +650,6 @@ go_to_it:
                    fputs (scanl, aud);
                if (noisy)
                    fflush (stdout);
-               if (!packfile) {
-                   clear_msg_flags (mp, msgnum);
-                   set_exists (mp, msgnum);
-                   set_unseen (mp, msgnum);
-                   mp->msgflags |= SEQMOD;
-               }
                break;
            }
            if (packfile) {
@@ -706,17 +692,6 @@ go_to_it:
        scan_detect_mbox_style (in);            /* the MAGIC invocation... */
        hghnum = msgnum = mp->hghmsg;
        for (;;) {
-           /*
-            * Check if we need to allocate more space for message status.
-            * If so, then add space for an additional 100 messages.
-            */
-           if (msgnum >= mp->hghoff
-               && !(mp = folder_realloc (mp, mp->lowoff, mp->hghoff + 100))) {
-               advise (NULL, "unable to allocate folder storage");
-               incerr = NOTOK;
-               break;
-           }
-
            /* create scanline for new message */
            switch (incerr = scan (in, msgnum + 1, msgnum + 1, nfs, width,
                              msgnum == hghnum && chgflag, 1, NULL, 0L, noisy)) {
@@ -753,14 +728,6 @@ go_to_it:
                    fflush (stdout);
 
                msgnum++;
-               mp->hghmsg++;
-               mp->nummsg++;
-               if (mp->lowmsg == 0) mp->lowmsg = 1;
-
-               clear_msg_flags (mp, msgnum);
-               set_exists (mp, msgnum);
-               set_unseen (mp, msgnum);
-               mp->msgflags |= SEQMOD;
                continue;
            }
            /* If we get here there was some sort of error from scan(),
@@ -776,16 +743,6 @@ go_to_it:
        hghnum = msgnum = mp->hghmsg;
        for (i = 0; i < num_maildir_entries; i++) {
            msgnum++;
-           /*
-            * Check if we need to allocate more space for message status.
-            * If so, then add space for an additional 100 messages.
-            */
-           if (msgnum >= mp->hghoff
-               && !(mp = folder_realloc (mp, mp->lowoff, mp->hghoff + 100))) {
-               advise (NULL, "unable to allocate folder storage");
-               incerr = NOTOK;
-               break;
-           }
 
            sp = Maildir[i].filename;
            cp = getcpy (m_name (msgnum));
@@ -846,12 +803,6 @@ go_to_it:
                    fputs (scanl, aud);
                if (noisy)
                    fflush (stdout);
-               if (!packfile) {
-                   clear_msg_flags (mp, msgnum);
-                   set_exists (mp, msgnum);
-                   set_unseen (mp, msgnum);
-                   mp->msgflags |= SEQMOD;
-               }
                break;
            }
            if (ferror(pf) || fclose (pf)) {
@@ -916,15 +867,51 @@ go_to_it:
     if (msgnum == hghnum) {
        admonish (NULL, "no messages incorporated");
     } else {
+       /*
+        * Lock the sequence file now, and loop to set the right flags
+        * in the folder structure
+        */
+
+       struct msgs *mp2;
+       int i;
+
        context_replace (pfolder, folder);      /* update current folder */
+
+       if ((mp2 = folder_read(folder, 1)) == NULL) {
+           admonish(NULL, "Unable to reread folder %s", folder);
+           goto skip;
+       }
+
+       /*
+        * Shouldn't happen, but just in case ...
+        */
+
+       if (msgnum >= mp2->hghoff
+               && !(mp2 = folder_realloc (mp2, mp2->lowoff, msgnum + 1))) {
+           advise (NULL, "unable to reallocate folder storage");
+           goto skip;
+       }
+
        if (chgflag)
-           mp->curmsg = hghnum + 1;
-       mp->hghmsg = msgnum;
-       if (mp->lowmsg == 0)
-           mp->lowmsg = 1;
+           mp2->curmsg = hghnum + 1;
+       mp2->hghmsg = msgnum;
+
+       if (mp2->lowmsg == 0)
+           mp2->lowmsg = 1;
        if (chgflag)            /* sigh... */
-           seq_setcur (mp, mp->curmsg);
+           seq_setcur (mp2, mp2->curmsg);
+
+       for (i = hghnum + 1; i <= msgnum; i++) {
+           clear_msg_flags (mp2, i);
+           set_exists (mp2, i);
+           set_unseen (mp2, i);
+       }
+       mp2->msgflags |= SEQMOD;
+       seq_setunseen(mp2, 0);  /* Set the Unseen-Sequence */
+       seq_save(mp2);          /* Save the sequence file */
+       folder_free(mp2);
     }
+skip:
 
     /*
      * unlock the mail spool
@@ -939,8 +926,6 @@ go_to_it:
        }
     }
 
-    seq_setunseen (mp, 0);     /* set the Unseen-Sequence */
-    seq_save (mp);             /* synchronize sequences   */
     context_save ();           /* save the context file   */
     done (0);
     return 1;