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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 | ||
10341d26 BP |
25 | #include "sync_chain_lttv.h" |
26 | #include "event_processing_lttng_common.h" | |
70407e86 | 27 | |
10341d26 | 28 | #include "event_processing_lttng_null.h" |
70407e86 BP |
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 | ||
08365995 | 36 | // Functions common to all processing modules |
70407e86 BP |
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, | |
08365995 BP |
54 | .writeProcessingGraphsPlots= NULL, |
55 | .writeProcessingGraphsOptions= NULL, | |
70407e86 BP |
56 | }; |
57 | ||
58 | ||
59 | ||
60 | /* | |
61 | * Processing Module registering function | |
62 | */ | |
63 | static void registerProcessingLTTVNull() | |
64 | { | |
65 | g_queue_push_tail(&processingModules, &processingModuleLTTVNull); | |
66 | ||
67 | createQuarks(); | |
68 | } | |
69 | ||
70 | ||
71 | /* | |
72 | * Allocate and initialize data structures for synchronizing a traceset. | |
73 | * Register event hooks. | |
74 | * | |
75 | * Args: | |
76 | * syncState: container for synchronization data. | |
77 | * This function allocates these processingData members: | |
78 | * hookListList | |
79 | * traceSetContext: set of LTTV traces | |
80 | */ | |
81 | static void initProcessingLTTVNull(SyncState* const syncState, | |
82 | LttvTracesetContext* const traceSetContext) | |
83 | { | |
84 | ProcessingDataLTTVNull* processingData; | |
85 | ||
86 | processingData= malloc(sizeof(ProcessingDataLTTVNull)); | |
87 | syncState->processingData= processingData; | |
88 | processingData->traceSetContext= traceSetContext; | |
89 | ||
90 | processingData->hookListList= g_array_sized_new(FALSE, FALSE, | |
91 | sizeof(GArray*), syncState->traceNb); | |
92 | ||
93 | registerHooks(processingData->hookListList, traceSetContext, | |
f6691532 BP |
94 | &processEventLTTVNull, syncState, |
95 | syncState->matchingModule->canMatch); | |
70407e86 BP |
96 | } |
97 | ||
98 | ||
99 | /* | |
100 | * Nothing to do | |
101 | * | |
102 | * Args: | |
103 | * syncState container for synchronization data. | |
104 | */ | |
105 | static void finalizeProcessingLTTVNull(SyncState* const syncState) | |
106 | { | |
107 | return; | |
108 | } | |
109 | ||
110 | ||
111 | /* | |
112 | * Unregister event hooks. Deallocate processingData. | |
113 | * | |
114 | * Args: | |
115 | * syncState: container for synchronization data. | |
116 | * This function deallocates these members: | |
117 | * hookListList | |
118 | */ | |
119 | static void destroyProcessingLTTVNull(SyncState* const syncState) | |
120 | { | |
121 | ProcessingDataLTTVNull* processingData; | |
122 | ||
123 | processingData= (ProcessingDataLTTVNull*) syncState->processingData; | |
124 | ||
125 | if (processingData == NULL) | |
126 | { | |
127 | return; | |
128 | } | |
129 | ||
130 | unregisterHooks(processingData->hookListList, | |
08365995 | 131 | processingData->traceSetContext); |
70407e86 BP |
132 | |
133 | free(syncState->processingData); | |
134 | syncState->processingData= NULL; | |
135 | } | |
136 | ||
137 | ||
138 | /* | |
139 | * Lttv hook function that will be called for network events | |
140 | * | |
141 | * Args: | |
142 | * hookData: LttvTraceHook* for the type of event that generated the call | |
143 | * callData: LttvTracefileContext* at the moment of the event | |
144 | * | |
145 | * Returns: | |
146 | * FALSE Always returns FALSE, meaning to keep processing hooks for | |
147 | * this event | |
148 | */ | |
149 | static gboolean processEventLTTVNull(void* hookData, void* callData) | |
150 | { | |
151 | return FALSE; | |
152 | } |