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911b7a3c | 1 | /* This file is part of the Linux Trace Toolkit viewer |
2 | * Copyright (C) 2003-2004 Michel Dagenais | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License Version 2 as | |
6 | * published by the Free Software Foundation; | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program; if not, write to the Free Software | |
b9ce0bad YB |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, |
16 | * MA 02110-1301, USA. | |
911b7a3c | 17 | */ |
18 | ||
4e4d11b3 | 19 | #ifdef HAVE_CONFIG_H |
20 | #include <config.h> | |
21 | #endif | |
911b7a3c | 22 | |
23 | /* This file does not even compile yet. It is a starting point to compute | |
24 | some values in the background. This is why process_trace was split in | |
25 | three. However, process_trace_middle as it is currently is would not work. | |
26 | It needs to reinitialize its trace event positions each time since, | |
27 | in between background calls to process middle, other foreground calls to | |
28 | process_middle can happen. */ | |
29 | ||
30 | #include <lttvwindow/idleprocesstrace.h> | |
31 | ||
32 | /* The calling function has checked that the needed information has not | |
33 | been or is not being computed yet, has prepared the trace, and now all | |
34 | that is needed is to queue it for processing. | |
35 | ||
36 | CHECK remove the work_queue global variable, have an automatic adjustment | |
37 | of the number of events to process by iteration. */ | |
38 | ||
39 | static gboolean inserted = false; | |
40 | ||
41 | static GList *work_queue = NULL; | |
42 | ||
43 | typedef struct _WorkPiece WorkPiece; | |
44 | ||
45 | struct _WorkPiece { | |
46 | LttvTracesetContext *self; | |
47 | LttTime end; | |
48 | unsigned nb_events; | |
49 | LttvHook f; | |
50 | void *hook_data; | |
51 | unsigned nb_done; | |
52 | } | |
53 | ||
54 | guint lttv_process_traceset_piece(gpointer data) | |
55 | { | |
56 | GList *first = g_list_first(work_queue); | |
57 | ||
58 | guint nb_done, nb_asked; | |
59 | ||
60 | if(first == NULL) { | |
61 | inserted = false; | |
62 | return false; | |
63 | } | |
64 | ||
65 | WorkPiece *work_piece = (WorkPiece *)first->data; | |
66 | nb_asked = work_piece->nb_events - work_piece->nb_done; | |
67 | nb_asked = min(nb_asked, 10000); | |
68 | nb_done = lttv_process_trace_middle(work_piece->self,work_piece->end, | |
69 | nb_asked); | |
70 | work_piece->nb_done += nb_done; | |
71 | if(nb_done < nb_asked) { | |
72 | lttv_process_trace_end(work_piece->self); | |
73 | work_queue = g_list_delete(work_queue, first); | |
74 | } | |
75 | } | |
76 | ||
77 | ||
78 | void lttv_process_traceset_when_idle(LttvTracesetContext *self, LttTime end, | |
79 | unsigned nb_events, LttvHook f, void *hook_data) | |
80 | { | |
81 | WorkPiece *work_piece = g_new(WorkPiece); | |
82 | work_piece->self = self; | |
83 | work_piece->end = end; | |
84 | work_piece->nb_events = nb_events; | |
85 | work_piece->f = f; | |
86 | work_piece->hook_data = hook_data; | |
87 | eork_piece->nb_done = 0; | |
88 | ||
89 | lttv_process_traceset_begin(self); | |
90 | work_queue = g_list_append(work_queue, work_piece); | |
91 | if(!inserted) g_idle_add(lttv_process_traceset_piece, work_queue); | |
92 | } | |
93 | ||
94 |