1 /* This file is part of the Linux Trace Toolkit viewer
2 * Copyright (C) 2009 Benjamin Poirier <benjamin.poirier@polymtl.ca>
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;
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.
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,
26 #include "sync_chain.h"
27 #include "event_processing_lttng_common.h"
29 #include "event_processing_lttng_null.h"
32 // Functions common to all processing modules
33 static void initProcessingLTTVNull(SyncState
* const syncState
, ...);
34 static void destroyProcessingLTTVNull(SyncState
* const syncState
);
36 static void finalizeProcessingLTTVNull(SyncState
* const syncState
);
38 // Functions specific to this module
39 static gboolean
processEventLTTVNull(void* hookData
, void* callData
);
42 static ProcessingModule processingModuleLTTVNull
= {
44 .initProcessing
= &initProcessingLTTVNull
,
45 .destroyProcessing
= &destroyProcessingLTTVNull
,
46 .finalizeProcessing
= &finalizeProcessingLTTVNull
,
52 * Processing Module registering function
54 void registerProcessingLTTVNull()
56 g_queue_push_tail(&processingModules
, &processingModuleLTTVNull
);
63 * Allocate and initialize data structures for synchronizing a traceset.
64 * Register event hooks.
67 * syncState: container for synchronization data.
68 * This function allocates these processingData members:
70 * traceSetContext: LttvTracesetContext*, set of LTTV traces
72 static void initProcessingLTTVNull(SyncState
* const syncState
, ...)
74 ProcessingDataLTTVNull
* processingData
;
77 processingData
= malloc(sizeof(ProcessingDataLTTVNull
));
78 syncState
->processingData
= processingData
;
79 va_start(ap
, syncState
);
80 processingData
->traceSetContext
= va_arg(ap
, LttvTracesetContext
*);
83 lttv_traceset_number(processingData
->traceSetContext
->ts
);
84 processingData
->hookListList
= g_array_sized_new(FALSE
, FALSE
,
85 sizeof(GArray
*), syncState
->traceNb
);
87 registerHooks(processingData
->hookListList
,
88 processingData
->traceSetContext
, &processEventLTTVNull
, syncState
,
89 syncState
->matchingModule
->canMatch
);
97 * syncState container for synchronization data.
99 static void finalizeProcessingLTTVNull(SyncState
* const syncState
)
106 * Unregister event hooks. Deallocate processingData.
109 * syncState: container for synchronization data.
110 * This function deallocates these members:
113 static void destroyProcessingLTTVNull(SyncState
* const syncState
)
115 ProcessingDataLTTVNull
* processingData
;
117 processingData
= (ProcessingDataLTTVNull
*) syncState
->processingData
;
119 if (processingData
== NULL
)
124 unregisterHooks(processingData
->hookListList
,
125 processingData
->traceSetContext
);
127 free(syncState
->processingData
);
128 syncState
->processingData
= NULL
;
133 * Lttv hook function that will be called for network events
136 * hookData: LttvTraceHook* for the type of event that generated the call
137 * callData: LttvTracefileContext* at the moment of the event
140 * FALSE Always returns FALSE, meaning to keep processing hooks for
143 static gboolean
processEventLTTVNull(void* hookData
, void* callData
)