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1 | /* This file is part of the Linux Trace Toolkit viewer |
2 | * Copyright (C) 2003-2004 Mathieu Desnoyers |
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 |
15 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
16 | * MA 02111-1307, USA. |
17 | */ |
18 | |
19 | |
20 | |
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21 | #ifndef _PROCESS_LIST_H |
22 | #define _PROCESS_LIST_H |
23 | |
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24 | #include <gtk/gtk.h> |
25 | #include <lttv/state.h> |
26 | #include <ltt/ltt.h> |
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27 | |
28 | #include "drawitem.h" |
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29 | |
30 | /* The process list |
31 | * |
32 | * Tasks : |
33 | * Create a process list |
34 | * contains the data for the process list |
35 | * tells the height of the process list widget |
36 | * provides methods to add/remove process from the list |
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37 | * note : the sync with drawing is left to the caller. |
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38 | * provides helper function to convert a process unique identifier to |
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39 | * pixels (in height). |
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40 | * |
41 | * //FIXME : connect the scrolled window adjustment with the list. |
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42 | */ |
43 | |
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44 | typedef struct _ProcessInfo { |
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45 | |
46 | guint pid; |
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47 | guint cpu; |
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48 | guint ppid; |
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49 | LttTime birth; |
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50 | guint trace_num; |
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51 | |
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52 | // gint height_cache; |
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53 | |
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54 | } ProcessInfo; |
55 | |
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56 | typedef struct _HashedProcessData { |
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57 | |
58 | GdkPixmap *pixmap; // Pixmap slice containing drawing buffer for the PID |
59 | gint height; // height of the pixmap |
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60 | GtkTreeIter y_iter; // Access quickly to y pos. |
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61 | // DrawContext *draw_context; |
62 | /* Information on current drawing */ |
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63 | struct { |
64 | guint over; |
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65 | gboolean over_used; /* inform the user that information is incomplete */ |
66 | gboolean over_marked; /* inform the user that information is incomplete */ |
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67 | guint middle; |
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68 | gboolean middle_used; /* inform the user that information is incomplete */ |
69 | gboolean middle_marked;/* inform the user that information is incomplete */ |
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70 | guint under; |
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71 | gboolean under_used; /* inform the user that information is incomplete */ |
72 | gboolean under_marked; /* inform the user that information is incomplete */ |
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73 | } x; /* last x position saved by after state update */ |
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74 | |
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75 | LttTime next_good_time; /* precalculate the next time where the next |
76 | pixel is.*/ |
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77 | // FIXME : add info on last event ? |
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78 | |
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79 | } HashedProcessData; |
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80 | |
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81 | struct _ProcessList { |
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82 | |
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83 | GtkWidget *process_list_widget; |
84 | GtkListStore *list_store; |
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85 | GtkWidget *button; /* one button of the tree view */ |
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86 | |
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87 | /* A hash table by PID to speed up process position find in the list */ |
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88 | GHashTable *process_hash; |
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89 | |
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90 | guint number_of_process; |
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91 | gint cell_height_cache; |
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92 | |
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93 | /* Current process, one per cpu */ |
94 | HashedProcessData **current_hash_data; |
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95 | |
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96 | /* Array containing index -> pixmap correspondance. Must be updated |
97 | * every time the process list is reordered, process added or removed */ |
98 | GPtrArray * index_to_pixmap; |
99 | |
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100 | }; |
101 | |
102 | |
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103 | typedef struct _ProcessList ProcessList; |
104 | |
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105 | |
106 | #ifndef TYPE_DRAWING_T_DEFINED |
107 | #define TYPE_DRAWING_T_DEFINED |
108 | typedef struct _Drawing_t Drawing_t; |
109 | #endif //TYPE_DRAWING_T_DEFINED |
110 | |
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111 | ProcessList *processlist_construct(void); |
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112 | void processlist_destroy(ProcessList *process_list); |
113 | GtkWidget *processlist_get_widget(ProcessList *process_list); |
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114 | |
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115 | void processlist_clear(ProcessList *process_list); |
116 | |
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117 | // out : success (0) and height |
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118 | /* CPU num is only used for PID 0 */ |
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119 | int processlist_add(ProcessList *process_list, Drawing_t * drawing, |
120 | guint pid, guint cpu, guint ppid, |
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121 | LttTime *birth, guint trace_num, const gchar *name, guint *height, |
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122 | ProcessInfo **process_info, |
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123 | HashedProcessData **hashed_process_data); |
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124 | // out : success (0) and height |
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125 | int processlist_remove(ProcessList *process_list, guint pid, guint cpu, |
126 | LttTime *birth, guint trace_num); |
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127 | |
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128 | /* Update the width of each pixmap buffer for each process */ |
129 | void update_pixmap_size(ProcessList *process_list, guint width); |
130 | |
131 | |
132 | /* Put src and/or dest to NULL to copy from/to the each PID specific pixmap */ |
133 | void copy_pixmap_region(ProcessList *process_list, GdkDrawable *dest, |
134 | GdkGC *gc, GdkDrawable *src, |
135 | gint xsrc, gint ysrc, |
136 | gint xdest, gint ydest, gint width, gint height); |
137 | |
138 | /* If height is -1, the height of each pixmap is used */ |
139 | void rectangle_pixmap(ProcessList *process_list, GdkGC *gc, |
140 | gboolean filled, gint x, gint y, gint width, gint height); |
141 | |
142 | /* Renders each pixmaps into on big drawable */ |
143 | void copy_pixmap_to_screen(ProcessList *process_list, |
144 | GdkDrawable *dest, |
145 | GdkGC *gc, |
146 | gint x, gint y, |
147 | gint width, gint height); |
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148 | |
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149 | |
150 | |
151 | |
152 | static inline gint get_cell_height(ProcessList *process_list, |
153 | GtkTreeView *tree_view) |
154 | { |
155 | gint height = process_list->cell_height_cache; |
156 | if(height != -1) return height; |
157 | else { |
158 | GtkTreeViewColumn *Column = gtk_tree_view_get_column(tree_view, 0); |
159 | |
160 | gtk_tree_view_column_cell_get_size(Column, NULL, NULL, NULL, NULL, |
161 | &process_list->cell_height_cache); |
162 | } |
163 | return process_list->cell_height_cache; |
164 | } |
165 | |
166 | |
167 | |
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168 | static inline guint processlist_get_height(ProcessList *process_list) |
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169 | { |
170 | return get_cell_height(process_list, |
171 | (GtkTreeView*)process_list->process_list_widget) |
172 | * process_list->number_of_process ; |
173 | } |
174 | |
175 | |
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176 | static inline HashedProcessData *processlist_get_process_data( |
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177 | ProcessList *process_list, |
178 | guint pid, guint cpu, LttTime *birth, guint trace_num) |
179 | { |
180 | ProcessInfo process_info; |
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181 | |
182 | process_info.pid = pid; |
183 | if(pid == 0) |
184 | process_info.cpu = cpu; |
185 | else |
186 | process_info.cpu = 0; |
187 | process_info.birth = *birth; |
188 | process_info.trace_num = trace_num; |
189 | |
190 | return (HashedProcessData*)g_hash_table_lookup( |
191 | process_list->process_hash, |
192 | &process_info); |
193 | } |
194 | |
195 | |
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196 | static inline gint processlist_get_pixels_from_data( ProcessList *process_list, |
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197 | HashedProcessData *hashed_process_data, |
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198 | guint *y, |
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199 | guint *height) |
200 | { |
201 | gint *path_indices; |
202 | GtkTreePath *tree_path; |
203 | |
204 | tree_path = gtk_tree_model_get_path((GtkTreeModel*)process_list->list_store, |
205 | &hashed_process_data->y_iter); |
206 | path_indices = gtk_tree_path_get_indices (tree_path); |
207 | |
208 | *height = get_cell_height(process_list, |
209 | (GtkTreeView*)process_list->process_list_widget); |
210 | *y = *height * path_indices[0]; |
211 | gtk_tree_path_free(tree_path); |
212 | |
213 | return 0; |
214 | |
215 | } |
216 | |
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217 | static inline guint processlist_get_index_from_data(ProcessList *process_list, |
218 | HashedProcessData *hashed_process_data) |
219 | { |
220 | gint *path_indices; |
221 | GtkTreePath *tree_path; |
222 | guint ret; |
223 | |
224 | tree_path = gtk_tree_model_get_path((GtkTreeModel*)process_list->list_store, |
225 | &hashed_process_data->y_iter); |
226 | path_indices = gtk_tree_path_get_indices (tree_path); |
227 | |
228 | ret = path_indices[0]; |
229 | |
230 | gtk_tree_path_free(tree_path); |
231 | |
232 | return ret; |
233 | } |
234 | |
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235 | |
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236 | |
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237 | #endif // _PROCESS_LIST_H |