util: move all to shared/ and split external dependencies in separate internal libraries

[elogind.git] / src / shared / ratelimit.h

diff --git a/src/shared/ratelimit.h b/src/shared/ratelimit.h
new file mode 100644 (file)
index 0000000..a6443e7
--- /dev/null
+++ b/src/shared/ratelimit.h
@@ -0,0 +1,53 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#ifndef fooratelimithfoo
+#define fooratelimithfoo
+
+/***
+  This file is part of systemd.
+
+  Copyright 2010 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include "util.h"
+
+typedef struct RateLimit {
+        usec_t interval;
+        usec_t begin;
+        unsigned burst;
+        unsigned num;
+} RateLimit;
+
+#define RATELIMIT_DEFINE(_name, _interval, _burst)       \
+        RateLimit _name = {                              \
+                .interval = (_interval),                 \
+                .burst = (_burst),                       \
+                .num = 0,                                \
+                .begin = 0                               \
+        }
+
+#define RATELIMIT_INIT(v, _interval, _burst)             \
+        do {                                             \
+                RateLimit *_r = &(v);                    \
+                _r->interval = (_interval);              \
+                _r->burst = (_burst);                    \
+                _r->num = 0;                             \
+                _r->begin = 0;                           \
+        } while (false)
+
+bool ratelimit_test(RateLimit *r);
+
+#endif