Adding upstream version 1:2.3.19.1+dfsg1.upstream/1%2.3.19.1+dfsg1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 46 insertions, 0 deletions

diff --git a/src/old-stats/global-memory.c b/src/old-stats/global-memory.c
new file mode 100644
index 0000000..dc04bfb
--- /dev/null
+++ b/src/old-stats/global-memory.c
@@ -0,0 +1,46 @@
+/* Copyright (c) 2011-2018 Dovecot authors, see the included COPYING file */
+
+#include "lib.h"
+#include "mail-command.h"
+#include "mail-session.h"
+#include "mail-user.h"
+#include "mail-domain.h"
+#include "mail-ip.h"
+#include "stats-settings.h"
+#include "global-memory.h"
+
+size_t global_used_memory = 0;
+
+static bool global_memory_free_something(void)
+{
+	size_t orig_used_memory = global_used_memory;
+
+	mail_commands_free_memory();
+	if (global_used_memory > stats_settings->memory_limit)
+		mail_sessions_free_memory();
+	if (global_used_memory > stats_settings->memory_limit)
+		mail_users_free_memory();
+	if (global_used_memory > stats_settings->memory_limit)
+		mail_ips_free_memory();
+	if (global_used_memory > stats_settings->memory_limit)
+		mail_domains_free_memory();
+
+	return global_used_memory < orig_used_memory;
+}
+
+void global_memory_alloc(size_t size)
+{
+	i_assert(size < SIZE_MAX - global_used_memory);
+	global_used_memory += size;
+
+	while (global_used_memory > stats_settings->memory_limit) {
+		if (!global_memory_free_something())
+			break;
+	}
+}
+
+void global_memory_free(size_t size)
+{
+	i_assert(size <= global_used_memory);
+	global_used_memory -= size;
+}