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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 | ||
10341d26 | 23 | #include "event_processing_lttng_common.h" |
70407e86 BP |
24 | |
25 | ||
70407e86 BP |
26 | #ifndef g_info |
27 | #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format) | |
28 | #endif | |
29 | ||
30 | ||
70407e86 BP |
31 | /* |
32 | * Initialize the GQuarks needed to register the event hooks for | |
33 | * synchronization | |
34 | */ | |
35 | void createQuarks() | |
36 | { | |
37 | LTT_CHANNEL_NET= g_quark_from_static_string("net"); | |
38 | LTT_CHANNEL_NETIF_STATE= g_quark_from_static_string("netif_state"); | |
39 | ||
fea7219b | 40 | LTT_EVENT_DEV_XMIT_EXTENDED= g_quark_from_static_string("dev_xmit_extended"); |
70407e86 | 41 | LTT_EVENT_DEV_RECEIVE= g_quark_from_static_string("dev_receive"); |
fea7219b | 42 | LTT_EVENT_TCPV4_RCV_EXTENDED= g_quark_from_static_string("tcpv4_rcv_extended"); |
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43 | LTT_EVENT_NETWORK_IPV4_INTERFACE= |
44 | g_quark_from_static_string("network_ipv4_interface"); | |
45 | ||
46 | LTT_FIELD_SKB= g_quark_from_static_string("skb"); | |
47 | LTT_FIELD_PROTOCOL= g_quark_from_static_string("protocol"); | |
48 | LTT_FIELD_NETWORK_PROTOCOL= | |
49 | g_quark_from_static_string("network_protocol"); | |
50 | LTT_FIELD_TRANSPORT_PROTOCOL= | |
51 | g_quark_from_static_string("transport_protocol"); | |
52 | LTT_FIELD_SADDR= g_quark_from_static_string("saddr"); | |
53 | LTT_FIELD_DADDR= g_quark_from_static_string("daddr"); | |
54 | LTT_FIELD_TOT_LEN= g_quark_from_static_string("tot_len"); | |
55 | LTT_FIELD_IHL= g_quark_from_static_string("ihl"); | |
56 | LTT_FIELD_SOURCE= g_quark_from_static_string("source"); | |
57 | LTT_FIELD_DEST= g_quark_from_static_string("dest"); | |
58 | LTT_FIELD_SEQ= g_quark_from_static_string("seq"); | |
59 | LTT_FIELD_ACK_SEQ= g_quark_from_static_string("ack_seq"); | |
60 | LTT_FIELD_DOFF= g_quark_from_static_string("doff"); | |
61 | LTT_FIELD_ACK= g_quark_from_static_string("ack"); | |
62 | LTT_FIELD_RST= g_quark_from_static_string("rst"); | |
63 | LTT_FIELD_SYN= g_quark_from_static_string("syn"); | |
64 | LTT_FIELD_FIN= g_quark_from_static_string("fin"); | |
65 | LTT_FIELD_NAME= g_quark_from_static_string("name"); | |
66 | LTT_FIELD_ADDRESS= g_quark_from_static_string("address"); | |
67 | LTT_FIELD_UP= g_quark_from_static_string("up"); | |
68 | } | |
69 | ||
70 | ||
71 | /* Fill hookListList and add event hooks | |
72 | * | |
73 | * Note: possibilité de remettre le code avec lttv_trace_find_marker_ids (voir | |
74 | * r328) | |
75 | * | |
76 | * Args: | |
08365995 BP |
77 | * hookListList: LttvTraceHook hookListList[traceNum][hookNum] |
78 | * traceSetContext: LTTV traceset | |
79 | * hookFunction: call back function when event is encountered | |
80 | * hookData: data that will be made accessible to hookFunction in | |
81 | * arg0->hook_data | |
70407e86 BP |
82 | */ |
83 | void registerHooks(GArray* hookListList, LttvTracesetContext* const | |
08365995 | 84 | traceSetContext, LttvHook hookFunction, gpointer hookData) |
70407e86 BP |
85 | { |
86 | unsigned int i, j, k; | |
08365995 BP |
87 | unsigned int traceNb= lttv_traceset_number(traceSetContext->ts); |
88 | struct { | |
89 | GQuark channelName; | |
90 | GQuark eventName; | |
91 | GQuark* fields; | |
92 | } eventHookInfoList[] = { | |
93 | { | |
94 | .channelName= LTT_CHANNEL_NET, | |
fea7219b | 95 | .eventName= LTT_EVENT_DEV_XMIT_EXTENDED, |
08365995 BP |
96 | .fields= FIELD_ARRAY(LTT_FIELD_SKB, LTT_FIELD_NETWORK_PROTOCOL, |
97 | LTT_FIELD_TRANSPORT_PROTOCOL, LTT_FIELD_SADDR, | |
98 | LTT_FIELD_DADDR, LTT_FIELD_TOT_LEN, LTT_FIELD_IHL, | |
99 | LTT_FIELD_SOURCE, LTT_FIELD_DEST, LTT_FIELD_SEQ, | |
100 | LTT_FIELD_ACK_SEQ, LTT_FIELD_DOFF, LTT_FIELD_ACK, | |
101 | LTT_FIELD_RST, LTT_FIELD_SYN, LTT_FIELD_FIN), | |
102 | }, { | |
103 | .channelName= LTT_CHANNEL_NET, | |
104 | .eventName= LTT_EVENT_DEV_RECEIVE, | |
105 | .fields= FIELD_ARRAY(LTT_FIELD_SKB, LTT_FIELD_PROTOCOL), | |
106 | }, { | |
107 | .channelName= LTT_CHANNEL_NET, | |
fea7219b | 108 | .eventName= LTT_EVENT_TCPV4_RCV_EXTENDED, |
08365995 BP |
109 | .fields= FIELD_ARRAY(LTT_FIELD_SKB, LTT_FIELD_SADDR, |
110 | LTT_FIELD_DADDR, LTT_FIELD_TOT_LEN, LTT_FIELD_IHL, | |
111 | LTT_FIELD_SOURCE, LTT_FIELD_DEST, LTT_FIELD_SEQ, | |
112 | LTT_FIELD_ACK_SEQ, LTT_FIELD_DOFF, LTT_FIELD_ACK, | |
113 | LTT_FIELD_RST, LTT_FIELD_SYN, LTT_FIELD_FIN), | |
114 | }, { | |
115 | .channelName= LTT_CHANNEL_NETIF_STATE, | |
116 | .eventName= LTT_EVENT_NETWORK_IPV4_INTERFACE, | |
117 | .fields= FIELD_ARRAY(LTT_FIELD_NAME, LTT_FIELD_ADDRESS, | |
118 | LTT_FIELD_UP), | |
119 | } | |
120 | }; // This is called a compound literal | |
121 | unsigned int hookNb= sizeof(eventHookInfoList) / sizeof(*eventHookInfoList); | |
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122 | |
123 | for(i= 0; i < traceNb; i++) | |
124 | { | |
125 | LttvTraceContext* tc; | |
126 | GArray* hookList; | |
127 | int retval; | |
128 | ||
129 | tc= traceSetContext->traces[i]; | |
130 | hookList= g_array_new(FALSE, FALSE, sizeof(LttvTraceHook)); | |
131 | g_array_append_val(hookListList, hookList); | |
132 | ||
133 | // Find the hooks | |
134 | for (j= 0; j < hookNb; j++) | |
135 | { | |
136 | guint old_len; | |
137 | ||
138 | old_len= hookList->len; | |
139 | retval= lttv_trace_find_hook(tc->t, | |
140 | eventHookInfoList[j].channelName, | |
141 | eventHookInfoList[j].eventName, eventHookInfoList[j].fields, | |
142 | hookFunction, hookData, &hookList); | |
143 | if (retval != 0) | |
144 | { | |
145 | g_warning("Trace %d contains no %s.%s marker\n", i, | |
146 | g_quark_to_string(eventHookInfoList[j].channelName), | |
147 | g_quark_to_string(eventHookInfoList[j].eventName)); | |
148 | } | |
149 | else | |
150 | { | |
151 | g_assert(hookList->len - old_len == 1); | |
152 | } | |
153 | } | |
154 | ||
155 | // Add the hooks to each tracefile's event_by_id hook list | |
156 | for(j= 0; j < tc->tracefiles->len; j++) | |
157 | { | |
158 | LttvTracefileContext* tfc; | |
159 | ||
160 | tfc= g_array_index(tc->tracefiles, LttvTracefileContext*, j); | |
161 | ||
162 | for(k= 0; k < hookList->len; k++) | |
163 | { | |
164 | LttvTraceHook* traceHook; | |
165 | ||
166 | traceHook= &g_array_index(hookList, LttvTraceHook, k); | |
167 | if (traceHook->hook_data != hookData) | |
168 | { | |
169 | g_assert_not_reached(); | |
170 | } | |
171 | if (traceHook->mdata == tfc->tf->mdata) | |
172 | { | |
08365995 | 173 | lttv_hooks_add(lttv_hooks_by_id_find(tfc->event_by_id, |
70407e86 BP |
174 | traceHook->id), traceHook->h, traceHook, |
175 | LTTV_PRIO_DEFAULT); | |
176 | } | |
177 | } | |
178 | } | |
179 | } | |
180 | } | |
181 | ||
182 | ||
183 | /* Remove event hooks and free hookListList | |
184 | * | |
185 | * Args: | |
186 | * hookListList: LttvTraceHook hookListList[traceNum][hookNum] | |
187 | * traceSetContext: LTTV traceset | |
70407e86 BP |
188 | */ |
189 | void unregisterHooks(GArray* hookListList, LttvTracesetContext* const | |
08365995 | 190 | traceSetContext) |
70407e86 BP |
191 | { |
192 | unsigned int i, j, k; | |
08365995 | 193 | unsigned int traceNb= lttv_traceset_number(traceSetContext->ts); |
70407e86 BP |
194 | |
195 | for(i= 0; i < traceNb; i++) | |
196 | { | |
197 | LttvTraceContext* tc; | |
198 | GArray* hookList; | |
199 | ||
200 | tc= traceSetContext->traces[i]; | |
201 | hookList= g_array_index(hookListList, GArray*, i); | |
202 | ||
203 | // Remove the hooks from each tracefile's event_by_id hook list | |
204 | for(j= 0; j < tc->tracefiles->len; j++) | |
205 | { | |
206 | LttvTracefileContext* tfc; | |
207 | ||
208 | tfc= g_array_index(tc->tracefiles, LttvTracefileContext*, j); | |
209 | ||
210 | for(k= 0; k < hookList->len; k++) | |
211 | { | |
212 | LttvTraceHook* traceHook; | |
213 | ||
214 | traceHook= &g_array_index(hookList, LttvTraceHook, k); | |
215 | if (traceHook->mdata == tfc->tf->mdata) | |
216 | { | |
217 | lttv_hooks_remove_data(lttv_hooks_by_id_find(tfc->event_by_id, | |
218 | traceHook->id), traceHook->h, traceHook); | |
219 | } | |
220 | } | |
221 | } | |
222 | ||
223 | g_array_free(hookList, TRUE); | |
224 | } | |
225 | g_array_free(hookListList, TRUE); | |
226 | } |