From: Tzvetomir Stoyanov <tstoyanov@vmware.com>
To: rostedt@goodmis.org
Cc: linux-trace-devel@vger.kernel.org
Subject: [PATCH v7 2/9] trace-cmd: Added support for negative time offsets in trace.dat file
Date: Tue, 19 Mar 2019 17:55:29 +0200 [thread overview]
Message-ID: <20190319155536.19381-3-tstoyanov@vmware.com> (raw)
In-Reply-To: <20190319155536.19381-1-tstoyanov@vmware.com>
When synchronizing timestamps between different machines, there are cases
when the time offset is negative. This patch changes the way time offset is
written and read from trace.dat file - as signed decimal, instead of hex.
Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
---
include/trace-cmd/trace-cmd.h | 2 +-
lib/trace-cmd/trace-input.c | 6 +++---
tracecmd/trace-read.c | 4 ++--
3 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/include/trace-cmd/trace-cmd.h b/include/trace-cmd/trace-cmd.h
index 21f83e2..428d792 100644
--- a/include/trace-cmd/trace-cmd.h
+++ b/include/trace-cmd/trace-cmd.h
@@ -126,7 +126,7 @@ int tracecmd_is_buffer_instance(struct tracecmd_input *handle);
void tracecmd_create_top_instance(char *name);
void tracecmd_remove_instances(void);
-void tracecmd_set_ts_offset(struct tracecmd_input *handle, unsigned long long offset);
+void tracecmd_set_ts_offset(struct tracecmd_input *handle, long long offset);
void tracecmd_set_ts2secs(struct tracecmd_input *handle, unsigned long long hz);
void tracecmd_print_events(struct tracecmd_input *handle, const char *regex);
diff --git a/lib/trace-cmd/trace-input.c b/lib/trace-cmd/trace-input.c
index 34a8301..be6720c 100644
--- a/lib/trace-cmd/trace-input.c
+++ b/lib/trace-cmd/trace-input.c
@@ -91,7 +91,7 @@ struct tracecmd_input {
bool read_page;
bool use_pipe;
struct cpu_data *cpu_data;
- unsigned long long ts_offset;
+ long long ts_offset;
double ts2secs;
char * cpustats;
char * uname;
@@ -2082,7 +2082,7 @@ static int init_cpu(struct tracecmd_input *handle, int cpu)
}
void tracecmd_set_ts_offset(struct tracecmd_input *handle,
- unsigned long long offset)
+ long long offset)
{
handle->ts_offset = offset;
}
@@ -2099,7 +2099,7 @@ void tracecmd_set_ts2secs(struct tracecmd_input *handle,
static int handle_options(struct tracecmd_input *handle)
{
- unsigned long long offset;
+ long long offset;
unsigned short option;
unsigned int size;
char *cpustats = NULL;
diff --git a/tracecmd/trace-read.c b/tracecmd/trace-read.c
index 804022a..e309672 100644
--- a/tracecmd/trace-read.c
+++ b/tracecmd/trace-read.c
@@ -58,7 +58,7 @@ static struct list_head handle_list;
struct input_files {
struct list_head list;
const char *file;
- unsigned long long tsoffset;
+ long long tsoffset;
unsigned long long ts2secs;
};
static struct list_head input_files;
@@ -1413,7 +1413,7 @@ void trace_report (int argc, char **argv)
struct input_files *inputs;
struct handle_list *handles;
enum output_type otype;
- unsigned long long tsoffset = 0;
+ long long tsoffset = 0;
unsigned long long ts2secs = 0;
unsigned long long ts2sc;
int show_stat = 0;
--
2.20.1
next prev parent reply other threads:[~2019-03-19 15:55 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-19 15:55 [PATCH v7 0/9] trace-cmd: Timetamps sync between host and guest machines, relying on vsock events Tzvetomir Stoyanov
2019-03-19 15:55 ` [PATCH v7 1/9] trace-cmd: Implemented new lib API: tracecmd_local_events_system() Tzvetomir Stoyanov
2019-03-19 15:55 ` Tzvetomir Stoyanov [this message]
2019-03-19 15:55 ` [PATCH v7 3/9] trace-cmd: Fix tracecmd_read_page_record() to read more than one event Tzvetomir Stoyanov
2019-03-19 15:55 ` [PATCH v7 4/9] trace-cmd: Added implementation of htonll() and ntohll() Tzvetomir Stoyanov
2019-03-19 15:55 ` [PATCH v7 5/9] trace-cmd: Refactored few functions in trace-record.c Tzvetomir Stoyanov
2019-03-19 18:21 ` Matt Helsley
2019-03-20 14:14 ` Tzvetomir Stoyanov
2019-03-20 14:35 ` Steven Rostedt
2019-03-21 15:06 ` Tzvetomir Stoyanov
2019-03-21 20:52 ` Steven Rostedt
2019-03-19 15:55 ` [PATCH v7 6/9] trace-cmd: Find and store pids of tasks, which run virtual CPUs of given VM Tzvetomir Stoyanov
2019-03-19 16:35 ` Slavomir Kaslev
2019-03-19 16:49 ` Steven Rostedt
2019-03-19 15:55 ` [PATCH v7 7/9] trace-cmd: Implemented new API tracecmd_add_option_v() Tzvetomir Stoyanov
2019-03-19 15:55 ` [PATCH v7 8/9] trace-cmd: Implemented new option in trace.dat file: TRACECMD_OPTION_TIME_SHIFT Tzvetomir Stoyanov
2019-03-19 17:58 ` Slavomir Kaslev
2019-03-19 18:00 ` Slavomir Kaslev
2019-03-20 14:39 ` Tzvetomir Stoyanov
2019-03-19 15:55 ` [PATCH v7 9/9] trace-cmd [POC]: Implemented timestamps synch algorithm, using vsock events Tzvetomir Stoyanov
2019-03-19 17:14 ` Slavomir Kaslev
2019-03-19 17:51 ` Steven Rostedt
2019-03-19 18:02 ` Slavomir Kaslev
2019-03-19 18:29 ` Matt Helsley
2019-03-19 18:40 ` Steven Rostedt
2019-03-20 15:06 ` Tzvetomir Stoyanov
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