mirror of
https://github.com/varun-r-mallya/sysprof.git
synced 2025-12-31 20:36:25 +00:00
c19d0635aa
This API helps us simplify some of the tooling to iterate through a capture. In particular, we might want to setup a bunch of matches and then just iterate through the items. This can also allow delaying the iteration until the future which might be handy for visualizers which won't want to block the main loop. I'm not jazzed about the 64k buffer created for every cursor due to the SpCaptureReader copy, but it's probably not a big deal in practice until we start doing more exotic things.
59 lines
1.2 KiB
C
59 lines
1.2 KiB
C
#include <glib/gstdio.h>
|
|
#include <sysprof.h>
|
|
|
|
static gboolean
|
|
increment (const SpCaptureFrame *frame,
|
|
gpointer user_data)
|
|
{
|
|
gint *count= user_data;
|
|
(*count)++;
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
test_cursor_basic (void)
|
|
{
|
|
SpCaptureReader *reader;
|
|
SpCaptureWriter *writer;
|
|
SpCaptureCursor *cursor;
|
|
GError *error = NULL;
|
|
gint64 t = SP_CAPTURE_CURRENT_TIME;
|
|
guint i;
|
|
gint r;
|
|
gint count = 0;
|
|
|
|
writer = sp_capture_writer_new ("capture-file", 0);
|
|
g_assert (writer != NULL);
|
|
|
|
reader = sp_capture_reader_new ("capture-file", &error);
|
|
g_assert_no_error (error);
|
|
g_assert (reader != NULL);
|
|
|
|
for (i = 0; i < 100; i++)
|
|
{
|
|
r = sp_capture_writer_add_timestamp (writer, t, i, -1);
|
|
g_assert_cmpint (r, ==, TRUE);
|
|
}
|
|
|
|
sp_capture_writer_flush (writer);
|
|
|
|
cursor = sp_capture_cursor_new (reader);
|
|
sp_capture_cursor_foreach (cursor, increment, &count);
|
|
g_assert_cmpint (count, ==, 100);
|
|
g_clear_object (&cursor);
|
|
|
|
sp_capture_reader_unref (reader);
|
|
sp_capture_writer_unref (writer);
|
|
|
|
g_unlink ("capture-file");
|
|
}
|
|
|
|
int
|
|
main (int argc,
|
|
char *argv[])
|
|
{
|
|
g_test_init (&argc, &argv, NULL);
|
|
g_test_add_func ("/SpCaptureCursor/basic", test_cursor_basic);
|
|
return g_test_run ();
|
|
}
|