Re-organize sources

[babeltrace.git] / src / lib / util.c

diff --git a/src/lib/util.c b/src/lib/util.c
new file mode 100644 (file)
index 0000000..b17fe2f
--- /dev/null
+++ b/src/lib/util.c
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2015-2018 Philippe Proulx <pproulx@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#define BT_LOG_TAG "UTIL"
+#include "lib/lib-logging.h"
+
+#include "lib/assert-pre.h"
+#include <stdlib.h>
+#include <string.h>
+#include <string.h>
+#include <inttypes.h>
+#include <babeltrace2/util.h>
+#include "lib/trace-ir/utils.h"
+
+bt_util_status bt_util_clock_cycles_to_ns_from_origin(uint64_t cycles,
+               uint64_t frequency, int64_t offset_seconds,
+               uint64_t offset_cycles, int64_t *ns)
+{
+       bool overflows;
+       int64_t base_offset_ns;
+       bt_util_status status = BT_UTIL_STATUS_OK;
+       int ret;
+
+       BT_ASSERT_PRE_NON_NULL(ns, "Nanoseconds (output)");
+       BT_ASSERT_PRE(frequency != UINT64_C(-1) && frequency != 0,
+               "Invalid frequency: freq=%" PRIu64, frequency);
+       BT_ASSERT_PRE(offset_cycles < frequency,
+               "Offset (cycles) is greater than frequency: "
+               "offset-cycles=%" PRIu64 ", freq=%" PRIu64,
+               offset_cycles, frequency);
+
+       overflows = bt_util_get_base_offset_ns(offset_seconds, offset_cycles,
+               frequency, &base_offset_ns);
+       if (overflows) {
+               status = BT_UTIL_STATUS_OVERFLOW;
+               goto end;
+       }
+
+       ret = bt_util_ns_from_origin_inline(base_offset_ns,
+               offset_seconds, offset_cycles,
+               frequency, cycles, ns);
+       if (ret) {
+               status = BT_UTIL_STATUS_OVERFLOW;
+       }
+
+end:
+       return status;
+}