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libsysprof: join overlapping ranges

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This commit is contained in:
Christian Hergert
2019-06-19 21:12:36 -07:00
parent 4817e8086f
commit 8d012e83d7
1 changed files with 59 additions and 6 deletions
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65
src/libsysprof/sysprof-selection.c
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@ -146,8 +146,8 @@ sysprof_selection_get_has_selection (SysprofSelection *self)
*/
void
sysprof_selection_foreach (SysprofSelection *self,
SysprofSelectionForeachFunc foreach_func,
gpointer user_data)
SysprofSelectionForeachFunc foreach_func,
gpointer user_data)
{
g_return_if_fail (SYSPROF_IS_SELECTION (self));
g_return_if_fail (foreach_func != NULL);
@ -159,10 +159,60 @@ sysprof_selection_foreach (SysprofSelection *self,
}
}
static gint
range_compare (gconstpointer a,
gconstpointer b)
{
const Range *ra = a;
const Range *rb = b;
if (ra->begin < rb->begin)
return -1;
if (rb->begin < ra->begin)
return 1;
if (ra->end < rb->end)
return -1;
if (rb->end < ra->end)
return 1;
return 0;
}
static void
join_overlapping (GArray *ranges)
{
if (ranges->len > 1)
{
guint i = 0;
while (i < ranges->len - 1)
{
Range *range;
Range next;
range = &g_array_index (ranges, Range, i);
next = g_array_index (ranges, Range, i + 1);
if (range->end > next.begin)
{
range->end = next.end;
g_array_remove_index (ranges, i + 1);
}
else
{
i++;
}
}
}
}
void
sysprof_selection_select_range (SysprofSelection *self,
gint64 begin_time,
gint64 end_time)
gint64 begin_time,
gint64 end_time)
{
Range range = { 0 };
@ -174,16 +224,19 @@ sysprof_selection_select_range (SysprofSelection *self,
range.end = end_time;
g_array_append_val (self->ranges, range);
g_array_sort (self->ranges, range_compare);
join_overlapping (self->ranges);
if (self->ranges->len == 1)
g_object_notify_by_pspec (G_OBJECT (self), properties [PROP_HAS_SELECTION]);
g_signal_emit (self, signals [CHANGED], 0);
}
void
sysprof_selection_unselect_range (SysprofSelection *self,
gint64 begin,
gint64 end)
gint64 begin,
gint64 end)
{
g_return_if_fail (SYSPROF_IS_SELECTION (self));