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/* 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;
}
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