You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
weston/libweston/timeline.c

304 lines
6.6 KiB

/*
* Copyright © 2014 Pekka Paalanen <pq@iki.fi>
* Copyright © 2014 Collabora, Ltd.
*
* 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 (including the
* next paragraph) 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.
*/
#include "config.h"
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <time.h>
#include <assert.h>
#include "timeline.h"
#include <libweston/libweston.h>
#include "file-util.h"
struct timeline_log {
clock_t clk_id;
FILE *file;
unsigned series;
struct wl_listener compositor_destroy_listener;
};
WL_EXPORT int weston_timeline_enabled_;
static struct timeline_log timeline_ = { CLOCK_MONOTONIC, NULL, 0 };
static int
weston_timeline_do_open(void)
{
const char *prefix = "weston-timeline-";
const char *suffix = ".log";
char fname[1000];
timeline_.file = file_create_dated(NULL, prefix, suffix,
fname, sizeof(fname));
if (!timeline_.file) {
const char *msg;
switch (errno) {
case ETIME:
msg = "failure in datetime formatting";
break;
default:
msg = strerror(errno);
}
weston_log("Cannot open '%s*%s' for writing: %s\n",
prefix, suffix, msg);
return -1;
}
weston_log("Opened timeline file '%s'\n", fname);
return 0;
}
static void
timeline_notify_destroy(struct wl_listener *listener, void *data)
{
weston_timeline_close();
}
void
weston_timeline_open(struct weston_compositor *compositor)
{
if (weston_timeline_enabled_)
return;
if (weston_timeline_do_open() < 0)
return;
timeline_.compositor_destroy_listener.notify = timeline_notify_destroy;
wl_signal_add(&compositor->destroy_signal,
&timeline_.compositor_destroy_listener);
if (++timeline_.series == 0)
++timeline_.series;
weston_timeline_enabled_ = 1;
}
void
weston_timeline_close(void)
{
if (!weston_timeline_enabled_)
return;
weston_timeline_enabled_ = 0;
wl_list_remove(&timeline_.compositor_destroy_listener.link);
fclose(timeline_.file);
timeline_.file = NULL;
weston_log("Timeline log file closed.\n");
}
struct timeline_emit_context {
FILE *cur;
FILE *out;
unsigned series;
};
static unsigned
timeline_new_id(void)
{
static unsigned idc;
if (++idc == 0)
++idc;
return idc;
}
static int
check_series(struct timeline_emit_context *ctx,
struct weston_timeline_object *to)
{
if (to->series == 0 || to->series != ctx->series) {
to->series = ctx->series;
to->id = timeline_new_id();
return 1;
}
if (to->force_refresh) {
to->force_refresh = 0;
return 1;
}
return 0;
}
static void
fprint_quoted_string(FILE *fp, const char *str)
{
if (!str) {
fprintf(fp, "null");
return;
}
fprintf(fp, "\"%s\"", str);
}
static int
emit_weston_output(struct timeline_emit_context *ctx, void *obj)
{
struct weston_output *o = obj;
if (check_series(ctx, &o->timeline)) {
fprintf(ctx->out, "{ \"id\":%u, "
"\"type\":\"weston_output\", \"name\":",
o->timeline.id);
fprint_quoted_string(ctx->out, o->name);
fprintf(ctx->out, " }\n");
}
fprintf(ctx->cur, "\"wo\":%u", o->timeline.id);
return 1;
}
static void
check_weston_surface_description(struct timeline_emit_context *ctx,
struct weston_surface *s)
{
struct weston_surface *mains;
char d[512];
char mainstr[32];
if (!check_series(ctx, &s->timeline))
return;
mains = weston_surface_get_main_surface(s);
if (mains != s) {
check_weston_surface_description(ctx, mains);
if (snprintf(mainstr, sizeof(mainstr),
", \"main_surface\":%u", mains->timeline.id) < 0)
mainstr[0] = '\0';
} else {
mainstr[0] = '\0';
}
if (!s->get_label || s->get_label(s, d, sizeof(d)) < 0)
d[0] = '\0';
fprintf(ctx->out, "{ \"id\":%u, "
"\"type\":\"weston_surface\", \"desc\":", s->timeline.id);
fprint_quoted_string(ctx->out, d[0] ? d : NULL);
fprintf(ctx->out, "%s }\n", mainstr);
}
static int
emit_weston_surface(struct timeline_emit_context *ctx, void *obj)
{
struct weston_surface *s = obj;
check_weston_surface_description(ctx, s);
fprintf(ctx->cur, "\"ws\":%u", s->timeline.id);
return 1;
}
static int
emit_vblank_timestamp(struct timeline_emit_context *ctx, void *obj)
{
struct timespec *ts = obj;
fprintf(ctx->cur, "\"vblank\":[%" PRId64 ", %ld]",
(int64_t)ts->tv_sec, ts->tv_nsec);
return 1;
}
static int
emit_gpu_timestamp(struct timeline_emit_context *ctx, void *obj)
{
struct timespec *ts = obj;
fprintf(ctx->cur, "\"gpu\":[%" PRId64 ", %ld]",
(int64_t)ts->tv_sec, ts->tv_nsec);
return 1;
}
typedef int (*type_func)(struct timeline_emit_context *ctx, void *obj);
static const type_func type_dispatch[] = {
[TLT_OUTPUT] = emit_weston_output,
[TLT_SURFACE] = emit_weston_surface,
[TLT_VBLANK] = emit_vblank_timestamp,
[TLT_GPU] = emit_gpu_timestamp,
};
WL_EXPORT void
weston_timeline_point(const char *name, ...)
{
va_list argp;
struct timespec ts;
enum timeline_type otype;
void *obj;
char buf[512];
struct timeline_emit_context ctx;
clock_gettime(timeline_.clk_id, &ts);
ctx.out = timeline_.file;
ctx.cur = fmemopen(buf, sizeof(buf), "w");
ctx.series = timeline_.series;
if (!ctx.cur) {
weston_log("Timeline error in fmemopen, closing.\n");
weston_timeline_close();
return;
}
fprintf(ctx.cur, "{ \"T\":[%" PRId64 ", %ld], \"N\":\"%s\"",
(int64_t)ts.tv_sec, ts.tv_nsec, name);
va_start(argp, name);
while (1) {
otype = va_arg(argp, enum timeline_type);
if (otype == TLT_END)
break;
obj = va_arg(argp, void *);
if (type_dispatch[otype]) {
fprintf(ctx.cur, ", ");
type_dispatch[otype](&ctx, obj);
}
}
va_end(argp);
fprintf(ctx.cur, " }\n");
fflush(ctx.cur);
if (ferror(ctx.cur)) {
weston_log("Timeline error in constructing entry, closing.\n");
weston_timeline_close();
} else {
fprintf(ctx.out, "%s", buf);
}
fclose(ctx.cur);
}