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/*
** seq_msgstats -- message and sequence manipulation and folder attributes
**
** (These functions had once been macros in h/mh.h)
*/
#include <sysexits.h>
#include <h/mh.h>
static void
assert_msg_range(struct msgs *mp, int msgnum)
{
if (msgnum < mp->lowoff || msgnum > mp->hghoff) {
adios(EX_SOFTWARE, NULL, "Bug: message out of bounds");
}
}
void
add_sequence(struct msgs *mp, int seqnum, int msgnum)
{
assert_msg_range(mp, msgnum);
mp->msgstats[msgnum - mp->lowoff] |= (1 << (FFATTRSLOT + seqnum));
}
void
clear_msg_flags(struct msgs *mp, int msgnum)
{
assert_msg_range(mp, msgnum);
mp->msgstats[msgnum - mp->lowoff] = 0;
}
void
clear_sequence(struct msgs *mp, int seqnum, int msgnum)
{
assert_msg_range(mp, msgnum);
mp->msgstats[msgnum - mp->lowoff] &= ~(1 << (FFATTRSLOT + seqnum));
}
void
copy_msg_flags(struct msgs *mp, int dstmsg, int srcmsg)
{
assert_msg_range(mp, srcmsg);
assert_msg_range(mp, dstmsg);
mp->msgstats[dstmsg - mp->lowoff] = mp->msgstats[srcmsg - mp->lowoff];
}
seqset_t
does_exist(struct msgs *mp, int msgnum)
{
assert_msg_range(mp, msgnum);
return mp->msgstats[msgnum - mp->lowoff] & EXISTS;
}
void
get_msg_flags(struct msgs *mp, seqset_t *dst, int msgnum)
{
assert_msg_range(mp, msgnum);
*dst = mp->msgstats[msgnum - mp->lowoff];
}
seqset_t
in_sequence(struct msgs *mp, int seqnum, int msgnum)
{
assert_msg_range(mp, msgnum);
return mp->msgstats[msgnum - mp->lowoff] & (1 << (FFATTRSLOT + seqnum));
}
seqset_t
is_selected(struct msgs *mp, int msgnum)
{
assert_msg_range(mp, msgnum);
return mp->msgstats[msgnum - mp->lowoff] & SELECTED;
}
seqset_t
is_unseen(struct msgs *mp, int msgnum)
{
assert_msg_range(mp, msgnum);
return mp->msgstats[msgnum - mp->lowoff] & SELECT_UNSEEN;
}
void
set_exists(struct msgs *mp, int msgnum)
{
assert_msg_range(mp, msgnum);
mp->msgstats[msgnum - mp->lowoff] |= EXISTS;
}
void
set_msg_flags(struct msgs *mp, seqset_t *src, int msgnum)
{
assert_msg_range(mp, msgnum);
mp->msgstats[msgnum - mp->lowoff] = *src;
}
void
set_selected(struct msgs *mp, int msgnum)
{
assert_msg_range(mp, msgnum);
if (is_selected(mp, msgnum)) {
return;
}
mp->msgstats[msgnum - mp->lowoff] |= SELECTED;
if (mp->lowsel == 0 || msgnum < mp->lowsel) {
mp->lowsel = msgnum;
}
if (msgnum > mp->hghsel) {
mp->hghsel = msgnum;
}
mp->numsel++;
}
void
set_unseen(struct msgs *mp, int msgnum)
{
assert_msg_range(mp, msgnum);
mp->msgstats[msgnum - mp->lowoff] |= SELECT_UNSEEN;
}
void
unset_exists(struct msgs *mp, int msgnum)
{
assert_msg_range(mp, msgnum);
mp->msgstats[msgnum - mp->lowoff] &= ~EXISTS;
}
void
unset_selected(struct msgs *mp, int msgnum)
{
assert_msg_range(mp, msgnum);
if (!is_selected(mp, msgnum)) {
return;
}
mp->msgstats[msgnum - mp->lowoff] &= ~SELECTED;
if (mp->numsel > 0) {
mp->numsel--;
}
}
/*
** private/public sequences
*/
int
is_seq_private(struct msgs *mp, int seqnum)
{
return mp->attrstats & (1 << (FFATTRSLOT + seqnum));
}
void
make_seq_public(struct msgs *mp, int seqnum)
{
mp->attrstats &= ~(1 << (FFATTRSLOT + seqnum));
}
void
make_seq_private(struct msgs *mp, int seqnum)
{
mp->attrstats |= (1 << (FFATTRSLOT + seqnum));
}
void
make_all_public(struct msgs *mp)
{
mp->attrstats = 0;
}
/*
** folder attributes
*/
void
clear_folder_flags(struct msgs *mp)
{
mp->msgflags = 0;
}
int
is_readonly(struct msgs *mp)
{
return mp->msgflags & READONLY;
}
void
set_readonly(struct msgs *mp)
{
mp->msgflags |= READONLY;
}
int
other_files(struct msgs *mp)
{
return mp->msgflags & OTHERS;
}
void
set_other_files(struct msgs *mp)
{
mp->msgflags |= OTHERS;
}
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