Commit | Line | Data |
---|---|---|
70407e86 BP |
1 | /* This file is part of the Linux Trace Toolkit viewer |
2 | * Copyright (C) 2009 Benjamin Poirier <benjamin.poirier@polymtl.ca> | |
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 | #ifdef HAVE_CONFIG_H | |
20 | #include <config.h> | |
21 | #endif | |
22 | ||
23 | #include <stdlib.h> | |
24 | ||
25 | #include "sync_chain.h" | |
26 | #include "event_processing_lttv_common.h" | |
27 | ||
28 | #include "event_processing_lttv_null.h" | |
29 | ||
30 | ||
31 | #ifndef g_info | |
32 | #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format) | |
33 | #endif | |
34 | ||
35 | ||
36 | // Functions common to all matching modules | |
37 | static void initProcessingLTTVNull(SyncState* const syncState, | |
38 | LttvTracesetContext* const traceSetContext); | |
39 | static void destroyProcessingLTTVNull(SyncState* const syncState); | |
40 | ||
41 | static void finalizeProcessingLTTVNull(SyncState* const syncState); | |
42 | ||
43 | // Functions specific to this module | |
44 | static void registerProcessingLTTVNull() __attribute__((constructor (102))); | |
45 | static gboolean processEventLTTVNull(void* hookData, void* callData); | |
46 | ||
47 | ||
48 | static ProcessingModule processingModuleLTTVNull = { | |
49 | .name= "LTTV-null", | |
50 | .initProcessing= &initProcessingLTTVNull, | |
51 | .destroyProcessing= &destroyProcessingLTTVNull, | |
52 | .finalizeProcessing= &finalizeProcessingLTTVNull, | |
53 | .printProcessingStats= NULL, | |
54 | }; | |
55 | ||
56 | ||
57 | ||
58 | /* | |
59 | * Processing Module registering function | |
60 | */ | |
61 | static void registerProcessingLTTVNull() | |
62 | { | |
63 | g_queue_push_tail(&processingModules, &processingModuleLTTVNull); | |
64 | ||
65 | createQuarks(); | |
66 | } | |
67 | ||
68 | ||
69 | /* | |
70 | * Allocate and initialize data structures for synchronizing a traceset. | |
71 | * Register event hooks. | |
72 | * | |
73 | * Args: | |
74 | * syncState: container for synchronization data. | |
75 | * This function allocates these processingData members: | |
76 | * hookListList | |
77 | * traceSetContext: set of LTTV traces | |
78 | */ | |
79 | static void initProcessingLTTVNull(SyncState* const syncState, | |
80 | LttvTracesetContext* const traceSetContext) | |
81 | { | |
82 | ProcessingDataLTTVNull* processingData; | |
83 | ||
84 | processingData= malloc(sizeof(ProcessingDataLTTVNull)); | |
85 | syncState->processingData= processingData; | |
86 | processingData->traceSetContext= traceSetContext; | |
87 | ||
88 | processingData->hookListList= g_array_sized_new(FALSE, FALSE, | |
89 | sizeof(GArray*), syncState->traceNb); | |
90 | ||
91 | registerHooks(processingData->hookListList, traceSetContext, | |
92 | syncState->traceNb, &processEventLTTVNull, syncState); | |
93 | } | |
94 | ||
95 | ||
96 | /* | |
97 | * Nothing to do | |
98 | * | |
99 | * Args: | |
100 | * syncState container for synchronization data. | |
101 | */ | |
102 | static void finalizeProcessingLTTVNull(SyncState* const syncState) | |
103 | { | |
104 | return; | |
105 | } | |
106 | ||
107 | ||
108 | /* | |
109 | * Unregister event hooks. Deallocate processingData. | |
110 | * | |
111 | * Args: | |
112 | * syncState: container for synchronization data. | |
113 | * This function deallocates these members: | |
114 | * hookListList | |
115 | */ | |
116 | static void destroyProcessingLTTVNull(SyncState* const syncState) | |
117 | { | |
118 | ProcessingDataLTTVNull* processingData; | |
119 | ||
120 | processingData= (ProcessingDataLTTVNull*) syncState->processingData; | |
121 | ||
122 | if (processingData == NULL) | |
123 | { | |
124 | return; | |
125 | } | |
126 | ||
127 | unregisterHooks(processingData->hookListList, | |
128 | processingData->traceSetContext, syncState->traceNb); | |
129 | ||
130 | free(syncState->processingData); | |
131 | syncState->processingData= NULL; | |
132 | } | |
133 | ||
134 | ||
135 | /* | |
136 | * Lttv hook function that will be called for network events | |
137 | * | |
138 | * Args: | |
139 | * hookData: LttvTraceHook* for the type of event that generated the call | |
140 | * callData: LttvTracefileContext* at the moment of the event | |
141 | * | |
142 | * Returns: | |
143 | * FALSE Always returns FALSE, meaning to keep processing hooks for | |
144 | * this event | |
145 | */ | |
146 | static gboolean processEventLTTVNull(void* hookData, void* callData) | |
147 | { | |
148 | return FALSE; | |
149 | } |