-
/*
* folder_realloc.c -- realloc a folder/msgs structure
*
- * $Id$
- *
* This code is Copyright (c) 2002, by the authors of nmh. See the
* COPYRIGHT file in the root directory of the nmh distribution for
* complete copyright information.
struct msgs *
folder_realloc (struct msgs *mp, int lo, int hi)
{
- int msgnum;
+ int msgnum;
- /* sanity checks */
- if (lo < 1)
- adios (NULL, "BUG: called folder_realloc with lo (%d) < 1", lo);
- if (hi < 1)
- adios (NULL, "BUG: called folder_realloc with hi (%d) < 1", hi);
- if (mp->nummsg > 0 && lo > mp->lowmsg)
- adios (NULL, "BUG: called folder_realloc with lo (%d) > mp->lowmsg (%d)",
- lo, mp->lowmsg);
- if (mp->nummsg > 0 && hi < mp->hghmsg)
- adios (NULL, "BUG: called folder_realloc with hi (%d) < mp->hghmsg (%d)",
- hi, mp->hghmsg);
+ /* sanity checks */
+ if (lo < 1)
+ adios (NULL, "BUG: called folder_realloc with lo (%d) < 1", lo);
+ if (hi < 1)
+ adios (NULL, "BUG: called folder_realloc with hi (%d) < 1", hi);
+ if (mp->nummsg > 0 && lo > mp->lowmsg)
+ adios (NULL, "BUG: called folder_realloc with lo (%d) > mp->lowmsg (%d)",
+ lo, mp->lowmsg);
+ if (mp->nummsg > 0 && hi < mp->hghmsg)
+ adios (NULL, "BUG: called folder_realloc with hi (%d) < mp->hghmsg (%d)",
+ hi, mp->hghmsg);
- /* Check if we really need to reallocate anything */
- if (lo == mp->lowoff && hi == mp->hghoff)
- return mp;
+ /* Check if we really need to reallocate anything */
+ if (lo == mp->lowoff && hi == mp->hghoff)
+ return mp;
- if (lo == mp->lowoff) {
- /*
- * We are just extending (or shrinking) the end of message
- * status array. So we don't have to move anything and can
- * just realloc the message status array.
- */
- mp->msgstats = mh_xrealloc (mp->msgstats, MSGSTATSIZE(mp, lo, hi));
- } else {
- /*
- * We are changing the offset of the message status
- * array. So we will need to shift everything.
- */
- seqset_t *tmpstats;
+ if (lo == mp->lowoff) {
+ /*
+ * We are just extending (or shrinking) the end of message
+ * status array. So we don't have to move anything and can
+ * just realloc the message status array.
+ */
+ mp->msgstats = mh_xrealloc (mp->msgstats, MSGSTATSIZE(mp, lo, hi));
+ } else {
+ /*
+ * We are changing the offset of the message status
+ * array. So we will need to shift everything.
+ */
+ seqset_t *tmpstats;
- /* first allocate the new message status space */
- tmpstats = mh_xmalloc (MSGSTATSIZE(mp, lo, hi));
+ /* first allocate the new message status space */
+ tmpstats = mh_xmalloc (MSGSTATSIZE(mp, lo, hi));
- /* then copy messages status array with shift */
- if (mp->nummsg > 0) {
- for (msgnum = mp->lowmsg; msgnum <= mp->hghmsg; msgnum++)
- tmpstats[msgnum - lo] = mp->msgstats[msgnum - mp->lowoff];
+ /* then copy messages status array with shift */
+ if (mp->nummsg > 0) {
+ for (msgnum = mp->lowmsg; msgnum <= mp->hghmsg; msgnum++)
+ tmpstats[msgnum - lo] = mp->msgstats[msgnum - mp->lowoff];
+ }
+ free(mp->msgstats);
+ mp->msgstats = tmpstats;
}
- free(mp->msgstats);
- mp->msgstats = tmpstats;
- }
- mp->lowoff = lo;
- mp->hghoff = hi;
+ mp->lowoff = lo;
+ mp->hghoff = hi;
- /*
- * Clear all the flags for entries outside
- * the current message range for this folder.
- */
- if (mp->nummsg > 0) {
- for (msgnum = mp->lowoff; msgnum < mp->lowmsg; msgnum++)
- clear_msg_flags (mp, msgnum);
- for (msgnum = mp->hghmsg + 1; msgnum <= mp->hghoff; msgnum++)
- clear_msg_flags (mp, msgnum);
- } else {
- /* no messages, so clear entire range */
- for (msgnum = mp->lowoff; msgnum <= mp->hghoff; msgnum++)
- clear_msg_flags (mp, msgnum);
- }
+ /*
+ * Clear all the flags for entries outside
+ * the current message range for this folder.
+ */
+ if (mp->nummsg > 0) {
+ for (msgnum = mp->lowoff; msgnum < mp->lowmsg; msgnum++)
+ clear_msg_flags (mp, msgnum);
+ for (msgnum = mp->hghmsg + 1; msgnum <= mp->hghoff; msgnum++)
+ clear_msg_flags (mp, msgnum);
+ } else {
+ /* no messages, so clear entire range */
+ for (msgnum = mp->lowoff; msgnum <= mp->hghoff; msgnum++)
+ clear_msg_flags (mp, msgnum);
+ }
- return mp;
+ return mp;
}