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debug messages for revision handling

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This commit is contained in:
Krasimir Angelov
2022-05-23 11:05:59 +02:00
parent 31e20ffd84
commit 165de70172
1 changed files with 37 additions and 8 deletions
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45
src/runtime/c/pgf/db.cxx
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@@ -403,13 +403,16 @@ void PgfDB::register_revision(object o)
revision_entry *free_entry = NULL;
for (size_t i = 0; i < ms->n_revisions; i++) {
if (ms->revisions[i].ref_count == 0) {
revision_entry *entry = &ms->revisions[i];
if (entry->ref_count == 0) {
if (free_entry == NULL)
free_entry = &ms->revisions[i];
} else if (ms->revisions[i].pid == pid &&
ms->revisions[i].o == o) {
ms->revisions[i].ref_count++;
goto done;
free_entry = entry;
} else {
if (entry->pid == pid &&
entry->o == o) {
entry->ref_count++;
goto done;
}
}
}
@@ -448,12 +451,21 @@ void PgfDB::unregister_revision(object o)
WaitForSingleObject(hMutex, INFINITE);
#endif
revision_entry *free_entry = NULL;
#ifdef DEBUG_MEMORY_ALLOCATOR
fprintf(stderr, "revisions");
#endif
ms->min_txn_id = SIZE_MAX;
for (size_t i = 0; i < ms->n_revisions; i++) {
revision_entry *entry = &ms->revisions[i];
if (entry->ref_count > 0) {
#ifdef DEBUG_MEMORY_ALLOCATOR
fprintf(stderr, " %ld:%s(%016lx):%ld",
entry->txn_id,
((entry->o & MALLOC_ALIGN_MASK) == PgfPGF::tag) ? "pgf" : "concr",
entry->o & ~MALLOC_ALIGN_MASK,
entry->ref_count);
#endif
if (entry->pid == pid && entry->o == o) {
if (--entry->ref_count == 0) {
// Maybe this was the last revision in the list.
@@ -470,7 +482,9 @@ void PgfDB::unregister_revision(object o)
}
}
fprintf(stderr, "minimal revision %ld\n", ms->min_txn_id);
#ifdef DEBUG_MEMORY_ALLOCATOR
fprintf(stderr, " minimal %ld\n", ms->min_txn_id);
#endif
#ifndef _WIN32
pthread_mutex_unlock(&ms->mutex);
@@ -487,6 +501,10 @@ void PgfDB::cleanup_revisions()
WaitForSingleObject(hMutex, INFINITE);
#endif
#ifdef DEBUG_MEMORY_ALLOCATOR
fprintf(stderr, "revisions");
#endif
ms->min_txn_id = SIZE_MAX;
// If there are dead processes, set their reference counts to 0.
for (size_t i = 0; i < ms->n_revisions; i++) {
@@ -507,6 +525,13 @@ void PgfDB::cleanup_revisions()
#endif
if (alive) {
#ifdef DEBUG_MEMORY_ALLOCATOR
fprintf(stderr, " %ld:%s(%016lx):%ld",
entry->txn_id,
((entry->o & MALLOC_ALIGN_MASK) == PgfPGF::tag) ? "pgf" : "concr",
entry->o & ~MALLOC_ALIGN_MASK,
entry->ref_count);
#endif
if (ms->min_txn_id > entry->txn_id)
ms->min_txn_id = entry->txn_id;
} else {
@@ -515,6 +540,10 @@ void PgfDB::cleanup_revisions()
}
}
#ifdef DEBUG_MEMORY_ALLOCATOR
fprintf(stderr, " minimal %ld\n", ms->min_txn_id);
#endif
#ifndef _WIN32
pthread_mutex_unlock(&ms->mutex);
#else