From 6405fc3d60833c1aec56c34a608d730ea4fcb397 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Al=D0=B5x=D0=B0nder=20Lysik=D0=BEv?=
<alexander.lysikov@demlabs.net>
Date: Mon, 2 Dec 2019 19:25:29 +0500
Subject: [PATCH] added timespec_diff() function for calculate diff of two
struct timespec
---
include/dap_common.h | 1 +
src/dap_common.c | 26 ++++++++++++++++++++++++++
2 files changed, 27 insertions(+)
diff --git a/include/dap_common.h b/include/dap_common.h
index e3212ca1ba..ca885dc8f8 100755
--- a/include/dap_common.h
+++ b/include/dap_common.h
@@ -352,6 +352,7 @@ void dap_set_log_tag_width(size_t width);
char *dap_itoa(int i);
int dap_time_to_str_rfc822(char * out, size_t out_size_max, time_t t);
+int timespec_diff(struct timespec *a_start, struct timespec *a_stop, struct timespec *a_result);
int get_select_breaker(void);
int send_select_break(void);
diff --git a/src/dap_common.c b/src/dap_common.c
index 56bc9fd162..1f6988152c 100755
--- a/src/dap_common.c
+++ b/src/dap_common.c
@@ -370,6 +370,32 @@ int dap_time_to_str_rfc822(char * out, size_t out_size_max, time_t t)
return ret;
}
+/**
+ * @brief Calculate diff of two struct timespec
+ * @param[in] a_start - first time
+ * @param[in] a_stop - second time
+ * @param[out] a_result - diff time, may be NULL
+ * @return diff time in millisecond
+ */
+int timespec_diff(struct timespec *a_start, struct timespec *a_stop, struct timespec *a_result)
+{
+ if(!a_start || !a_stop)
+ return 0;
+ if(!a_result) {
+ struct timespec l_time_tmp = { 0 };
+ a_result = &l_time_tmp;
+ }
+ if((a_stop->tv_nsec - a_start->tv_nsec) < 0) {
+ a_result->tv_sec = a_stop->tv_sec - a_start->tv_sec - 1;
+ a_result->tv_nsec = a_stop->tv_nsec - a_start->tv_nsec + 1000000000;
+ } else {
+ a_result->tv_sec = a_stop->tv_sec - a_start->tv_sec;
+ a_result->tv_nsec = a_stop->tv_nsec - a_start->tv_nsec;
+ }
+
+ return (a_result->tv_sec * 1000 + a_result->tv_nsec / 1000000);
+}
+
#define BREAK_LATENCY 1
static int breaker_set[2] = { -1, -1 };
--
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