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mbsync
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fix loading of some messages' sizes in some partial sync scenarios 

we need to pass a different "boundary" UID to driver_t::load_box() for
every OPEN_* flag that queries a partial range:
- OPEN_FIND refers to messages newer than all we know about
- OPEN_OLD_IDS refers to messages which are paired
- OPEN_{OLD,NEW}_SIZE refers to messages (not) above the committed
  boundary of already propagated messages

we treated the 3rd like the 2nd, which was just wrong - the actual
boundary may be lower or higher, so we'd produce wrong results when
MaxSize was set and only one of New and ReNew was requested.
1.4
Oswald Buddenhagen 5 years ago
parent
c8f402e43f
commit
395f802500
5 changed files with 29 additions and 36 deletions
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  1. 10
      src/driver.h
  2. 8
      src/drv_imap.c
  3. 15
      src/drv_maildir.c
  4. 4
      src/drv_proxy.c
  5. 28
      src/sync.c

10
src/driver.h
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@ -206,12 +206,12 @@ struct driver {
* Consider only messages with UIDs between minuid and maxuid (inclusive)
* and those named in the excs array (smaller than minuid).
* The driver takes ownership of the excs array.
* Messages starting with newuid need to have the TUID populated when OPEN_FIND is set.
* Messages up to seenuid need to have the Message-Id populated when OPEN_OLD_IDS is set.
* Messages up to seenuid need to have the size populated when OPEN_OLD_SIZE is set;
* likewise messages above seenuid when OPEN_NEW_SIZE is set.
* Messages starting with finduid need to have the TUID populated when OPEN_FIND is set.
* Messages up to pairuid need to have the Message-Id populated when OPEN_OLD_IDS is set.
* Messages up to newuid need to have the size populated when OPEN_OLD_SIZE is set;
* likewise messages above newuid when OPEN_NEW_SIZE is set.
* The returned message list remains owned by the driver. */
void (*load_box)( store_t *ctx, uint minuid, uint maxuid, uint newuid, uint seenuid, uint_array_t excs,
void (*load_box)( store_t *ctx, uint minuid, uint maxuid, uint finduid, uint pairuid, uint newuid, uint_array_t excs,
void (*cb)( int sts, message_t *msgs, int total_msgs, int recent_msgs, void *aux ), void *aux );
/* Fetch the contents and flags of the given message from the current mailbox. */

8
src/drv_imap.c
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@ -2683,7 +2683,7 @@ static void imap_submit_load( imap_store_t *, const char *, int, imap_load_box_s
static void imap_submit_load_p3( imap_store_t *ctx, imap_load_box_state_t * );
static void
imap_load_box( store_t *gctx, uint minuid, uint maxuid, uint newuid, uint seenuid, uint_array_t excs,
imap_load_box( store_t *gctx, uint minuid, uint maxuid, uint finduid, uint pairuid, uint newuid, uint_array_t excs,
void (*cb)( int sts, message_t *msgs, int total_msgs, int recent_msgs, void *aux ), void *aux )
{
imap_store_t *ctx = (imap_store_t *)gctx;
@ -2716,11 +2716,11 @@ imap_load_box( store_t *gctx, uint minuid, uint maxuid, uint newuid, uint seenui
uint nranges = 1;
if (ctx->opts & (OPEN_OLD_SIZE | OPEN_NEW_SIZE))
imap_set_range( ranges, &nranges, shifted_bit( ctx->opts, OPEN_OLD_SIZE, WantSize),
shifted_bit( ctx->opts, OPEN_NEW_SIZE, WantSize), seenuid );
shifted_bit( ctx->opts, OPEN_NEW_SIZE, WantSize), newuid );
if (ctx->opts & OPEN_FIND)
imap_set_range( ranges, &nranges, 0, WantTuids, newuid - 1 );
imap_set_range( ranges, &nranges, 0, WantTuids, finduid - 1 );
if (ctx->opts & OPEN_OLD_IDS)
imap_set_range( ranges, &nranges, WantMsgids, 0, seenuid );
imap_set_range( ranges, &nranges, WantMsgids, 0, pairuid );
for (uint r = 0; r < nranges; r++) {
sprintf( buf, "%u:%u", ranges[r].first, ranges[r].last );
imap_submit_load( ctx, buf, ranges[r].flags, sts );

15
src/drv_maildir.c
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@ -70,7 +70,7 @@ typedef struct {
typedef struct {
store_t gen;
int uvfd, uvok, is_inbox, fresh[3];
uint opts, minuid, maxuid, newuid, seenuid, uidvalidity, nuid;
uint opts, minuid, maxuid, finduid, pairuid, newuid, uidvalidity, nuid;
uint_array_t excs;
char *path; /* own */
char *trash;
@ -1139,9 +1139,9 @@ maildir_scan( maildir_store_t *ctx, msg_t_array_alloc_t *msglist )
free( entry->base );
entry->base = nfstrndup( buf + bl + 4, (size_t)fnl );
}
int want_size = (uid > ctx->seenuid) ? (ctx->opts & OPEN_NEW_SIZE) : (ctx->opts & OPEN_OLD_SIZE);
int want_tuid = ((ctx->opts & OPEN_FIND) && uid >= ctx->newuid);
int want_msgid = ((ctx->opts & OPEN_OLD_IDS) && uid <= ctx->seenuid);
int want_size = (uid > ctx->newuid) ? (ctx->opts & OPEN_NEW_SIZE) : (ctx->opts & OPEN_OLD_SIZE);
int want_tuid = ((ctx->opts & OPEN_FIND) && uid >= ctx->finduid);
int want_msgid = ((ctx->opts & OPEN_OLD_IDS) && uid <= ctx->pairuid);
if (!want_size && !want_tuid && !want_msgid)
continue;
if (!fnl)
@ -1357,7 +1357,7 @@ maildir_confirm_box_empty( store_t *gctx )
maildir_store_t *ctx = (maildir_store_t *)gctx;
msg_t_array_alloc_t msglist;
ctx->excs.size = ctx->minuid = ctx->maxuid = ctx->newuid = 0;
ctx->excs.size = ctx->minuid = ctx->maxuid = ctx->finduid = 0;
if (maildir_scan( ctx, &msglist ) != DRV_OK)
return DRV_BOX_BAD;
@ -1435,7 +1435,7 @@ maildir_prepare_load_box( store_t *gctx, uint opts )
}
static void
maildir_load_box( store_t *gctx, uint minuid, uint maxuid, uint newuid, uint seenuid, uint_array_t excs,
maildir_load_box( store_t *gctx, uint minuid, uint maxuid, uint finduid, uint pairuid, uint newuid, uint_array_t excs,
void (*cb)( int sts, message_t *msgs, int total_msgs, int recent_msgs, void *aux ), void *aux )
{
maildir_store_t *ctx = (maildir_store_t *)gctx;
@ -1445,8 +1445,9 @@ maildir_load_box( store_t *gctx, uint minuid, uint maxuid, uint newuid, uint see
ctx->minuid = minuid;
ctx->maxuid = maxuid;
ctx->finduid = finduid;
ctx->pairuid = pairuid;
ctx->newuid = newuid;
ctx->seenuid = seenuid;
ARRAY_SQUEEZE( &excs );
ctx->excs = excs;

4
src/drv_proxy.c
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@ -198,8 +198,8 @@ proxy_@name@( store_t *gctx@decl_args@, void (*cb)( @decl_cb_args@void *aux ), v
//# DEFINE load_box_pre_print_args
static char ubuf[12];
//# END
//# DEFINE load_box_print_fmt_args , [%u,%s] (new >= %u, seen <= %u)
//# DEFINE load_box_print_pass_args , minuid, (maxuid == UINT_MAX) ? "inf" : (nfsnprintf( ubuf, sizeof(ubuf), "%u", maxuid ), ubuf), newuid, seenuid
//# DEFINE load_box_print_fmt_args , [%u,%s] (find >= %u, paired <= %u, new > %u)
//# DEFINE load_box_print_pass_args , minuid, (maxuid == UINT_MAX) ? "inf" : (nfsnprintf( ubuf, sizeof(ubuf), "%u", maxuid ), ubuf), finduid, pairuid, newuid
//# DEFINE load_box_print_args
if (excs.size) {
debugn( " excs:" );

28
src/sync.c
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@ -170,7 +170,7 @@ typedef struct {
uint newmaxuid[2]; // highest UID that is currently being propagated
uint uidval[2]; // UID validity value
uint newuidval[2]; // UID validity obtained from driver
uint newuid[2]; // TUID lookup makes sense only for UIDs >= this
uint finduid[2]; // TUID lookup makes sense only for UIDs >= this
uint maxxfuid; // highest expired UID on far side
uchar good_flags[2], bad_flags[2];
} sync_vars_t;
@ -896,7 +896,7 @@ load_state( sync_vars_t *svars )
if (c == 'S')
svars->maxuid[t1] = svars->newmaxuid[t1];
else if (c == 'F')
svars->newuid[t1] = t2;
svars->finduid[t1] = t2;
else if (c == 'T')
*uint_array_append( &svars->trashed_msgs[t1] ) = t2;
else if (c == '!')
@ -1350,27 +1350,19 @@ static void box_loaded( int sts, message_t *msgs, int total_msgs, int recent_msg
static void
load_box( sync_vars_t *svars, int t, uint minwuid, uint_array_t mexcs )
{
uint maxwuid, seenuid;
uint maxwuid = 0, pairuid = UINT_MAX;
if (svars->opts[t] & OPEN_NEW) {
if (minwuid > svars->maxuid[t] + 1)
minwuid = svars->maxuid[t] + 1;
maxwuid = UINT_MAX;
if (svars->opts[t] & (OPEN_OLD_IDS|OPEN_OLD_SIZE))
seenuid = get_seenuid( svars, t );
else
seenuid = 0;
if (svars->opts[t] & OPEN_OLD_IDS) // Implies OPEN_OLD
pairuid = get_seenuid( svars, t );
} else if (svars->opts[t] & OPEN_OLD) {
maxwuid = seenuid = get_seenuid( svars, t );
} else
maxwuid = seenuid = 0;
if (seenuid < svars->maxuid[t]) {
/* We cannot rely on the maxuid, as uni-directional syncing does not update it.
* But if it is there, use it to avoid a possible gap in the fetched range. */
seenuid = svars->maxuid[t];
maxwuid = get_seenuid( svars, t );
}
info( "Loading %s box...\n", str_fn[t] );
svars->drv[t]->load_box( svars->ctx[t], minwuid, maxwuid, svars->newuid[t], seenuid, mexcs, box_loaded, AUX );
svars->drv[t]->load_box( svars->ctx[t], minwuid, maxwuid, svars->finduid[t], pairuid, svars->maxuid[t], mexcs, box_loaded, AUX );
}
typedef struct {
@ -1814,8 +1806,8 @@ box_loaded( int sts, message_t *msgs, int total_msgs, int recent_msgs, void *aux
if (UseFSync)
fdatasync( fileno( svars->jfp ) );
for (t = 0; t < 2; t++) {
svars->newuid[t] = svars->drv[t]->get_uidnext( svars->ctx[t] );
JLOG( "F %d %u", (t, svars->newuid[t]), "save UIDNEXT of %s", str_fn[t] );
svars->finduid[t] = svars->drv[t]->get_uidnext( svars->ctx[t] );
JLOG( "F %d %u", (t, svars->finduid[t]), "save UIDNEXT of %s", str_fn[t] );
svars->new_msgs[t] = svars->msgs[1-t];
msgs_copied( svars, t );
if (check_cancel( svars ))
@ -1921,7 +1913,7 @@ msgs_copied( sync_vars_t *svars, int t )
if (svars->state[t] & ST_FIND_NEW) {
debug( "finding just copied messages on %s\n", str_fn[t] );
svars->drv[t]->find_new_msgs( svars->ctx[t], svars->newuid[t], msgs_found_new, AUX );
svars->drv[t]->find_new_msgs( svars->ctx[t], svars->finduid[t], msgs_found_new, AUX );
} else {
msgs_new_done( svars, t );
}

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