mirror of
https://github.com/varun-r-mallya/sysprof.git
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29c4ec495f
This is a major redesign a modernization of Sysprof. The core data structures and design are largely the same, but it has been ported to Gtk3 and has lots of additions that should make your profiling experience smoother. Especially for those that are new to profiling. There are some very simple help docs added, but we really need the experts to come in and write some documentation here.
120 lines
2.7 KiB
C
120 lines
2.7 KiB
C
/* sp-map-lookaside.c
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*
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* Copyright (C) 2016 Christian Hergert <chergert@redhat.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "sp-map-lookaside.h"
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struct _SpMapLookaside
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{
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GSequence *seq;
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GStringChunk *chunk;
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};
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static gint
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sp_map_compare (gconstpointer a,
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gconstpointer b,
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gpointer user_data)
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{
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const SpMap *map_a = a;
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const SpMap *map_b = b;
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return sp_capture_address_compare (map_a->start, map_b->start);
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}
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static gint
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sp_map_compare_in_range (gconstpointer a,
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gconstpointer b,
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gpointer user_data)
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{
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const SpMap *map_a = a;
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const SpMap *map_b = b;
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/*
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* map_b is the needle for the search.
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* Only map_b->start is set.
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*/
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if ((map_b->start >= map_a->start) && (map_b->start < map_a->end))
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return 0;
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return sp_capture_address_compare (map_a->start, map_b->start);
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}
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static void
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sp_map_free (gpointer data)
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{
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SpMap *map = data;
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g_slice_free (SpMap, map);
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}
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SpMapLookaside *
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sp_map_lookaside_new (void)
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{
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SpMapLookaside *ret;
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ret = g_slice_new (SpMapLookaside);
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ret->seq = g_sequence_new (sp_map_free);
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ret->chunk = g_string_chunk_new (4096);
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return ret;
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}
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void
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sp_map_lookaside_free (SpMapLookaside *self)
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{
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g_sequence_free (self->seq);
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g_string_chunk_free (self->chunk);
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g_slice_free (SpMapLookaside, self);
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}
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void
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sp_map_lookaside_insert (SpMapLookaside *self,
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const SpMap *map)
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{
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SpMap *copy;
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g_assert (self != NULL);
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g_assert (map != NULL);
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copy = g_slice_new (SpMap);
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copy->start = map->start;
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copy->end = map->end;
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copy->offset = map->offset;
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copy->inode = map->inode;
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copy->filename = g_string_chunk_insert_const (self->chunk, map->filename);
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g_sequence_insert_sorted (self->seq, copy, sp_map_compare, NULL);
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}
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const SpMap *
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sp_map_lookaside_lookup (SpMapLookaside *self,
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SpCaptureAddress address)
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{
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SpMap map = { address };
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GSequenceIter *iter;
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g_assert (self != NULL);
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iter = g_sequence_lookup (self->seq, &map, sp_map_compare_in_range, NULL);
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if (iter != NULL)
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return g_sequence_get (iter);
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return NULL;
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}
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