From: Stephan Bosch <stephan.bosch@open-xchange.com>
Date: Thu, 13 Feb 2025 01:19:36 +0000 (+0100)
Subject: quota: quota-util - Add quota_used_apply_expunged()
X-Git-Tag: 2.4.1~137
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=fc9aee40d189cb7f1b541257f12c709e5f5d9f54;p=thirdparty%2Fdovecot%2Fcore.git

quota: quota-util - Add quota_used_apply_expunged()
---

diff --git a/src/plugins/quota/quota-private.h b/src/plugins/quota/quota-private.h
index ec53087a08..f532e83340 100644
--- a/src/plugins/quota/quota-private.h
+++ b/src/plugins/quota/quota-private.h
@@ -167,6 +167,7 @@ bool quota_warning_match(const struct quota_root_settings *w,
 
 int quota_get_mail_size(struct quota_transaction_context *ctx,
 			struct mail *mail, uoff_t *size_r);
+void quota_used_apply_expunged(int64_t *used, uint64_t expunged);
 bool quota_transaction_is_over(struct quota_transaction_context *ctx, uoff_t size);
 bool quota_root_is_over(struct quota_transaction_context *ctx,
 			struct quota_transaction_root_context *root,
diff --git a/src/plugins/quota/quota-util.c b/src/plugins/quota/quota-util.c
index 64c8e9eb58..4435f9417f 100644
--- a/src/plugins/quota/quota-util.c
+++ b/src/plugins/quota/quota-util.c
@@ -119,6 +119,29 @@ quota_is_over(uoff_t alloc, int64_t used, uint64_t ceil, uint64_t over,
 	return FALSE;
 }
 
+void quota_used_apply_expunged(int64_t *used, uint64_t expunged)
+{
+	int64_t exp_signed;
+	int64_t exp_overflow;
+
+	if (expunged < (uint64_t)INT64_MAX) {
+		exp_overflow = 0;
+		exp_signed = (int64_t)expunged;
+	} else {
+		exp_overflow = (int64_t)(expunged - INT64_MAX);
+		exp_signed = INT64_MAX;
+	}
+
+	if (INT64_MIN + exp_signed > *used)
+		*used = INT64_MIN;
+	else
+		*used -= exp_signed;
+	if (INT64_MIN + (int64_t)exp_overflow > *used)
+		*used = INT64_MIN;
+	else
+		*used -= exp_overflow;
+}
+
 bool quota_transaction_is_over(struct quota_transaction_context *ctx,
 			       uoff_t size)
 {