*/
/* This module provides rpc call/reply SRT statistics to tshark.
- * It is only used by tshark and not wireshark
+ * It is only used by tshark and not wireshark.
*
* It serves as an example on how to use the tap api.
*/
* When registering below, we could just have left this function as NULL.
*
* When used by wireshark, this function will be called whenever we would need
- * to reset all state. Such as when wireshark opens a new file, when it
+ * to reset all state, such as when wireshark opens a new file, when it
* starts a new capture, when it rescans the packetlist after some prefs have
* changed etc.
+ *
* So if your application has some state it needs to clean up in those
* situations, here is a good place to put that code.
*/
}
-/* This callback is invoked whenever the tap system has seen a packet
- * we might be interested in.
- * The function is to be used to only update internal state information
- * in the *tapdata structure, and if there were state changes which requires
- * the window to be redrawn, return 1 and (*draw) will be called sometime
- * later.
+/* This callback is invoked whenever the tap system has seen a packet we might
+ * be interested in. The function is to be used to only update internal state
+ * information in the *tapdata structure, and if there were state changes which
+ * requires the window to be redrawn, return 1 and (*draw) will be called
+ * sometime later.
*
- * This function should be as lightweight as possible since it executes together
- * with the normal wireshark dissectors. Try to push as much processing as
- * possible into (*draw) instead since that function executes asynchronously
- * and does not affect the main threads performance.
+ * This function should be as lightweight as possible since it executes
+ * together with the normal wireshark dissectors. Try to push as much
+ * processing as possible into (*draw) instead since that function executes
+ * asynchronously and does not affect the main thread's performance.
*
- * If it is possible, try to do all "filtering" explicitely as we do below in
+ * If it is possible, try to do all "filtering" explicitly as we do below in
* this example since you will get MUCH better performance than applying
* a similar display-filter in the register call.
*
- * The third parameter is tap dependant. Since we register this one to the "rpc"
- * tap the third parameters type is rpc_call_info_value.
- *
+ * The third parameter is tap dependent. Since we register this one to the
+ * "rpc" tap, the third parameter type is rpc_call_info_value.
*
- * The filtering we do is just to check the rpc_call_info_value struct that
- * we were called for the proper program and version. We didnt apply a filter
+ * The filtering we do is just to check the rpc_call_info_value struct that we
+ * were called for the proper program and version. We didn't apply a filter
* when we registered so we will be called for ALL rpc packets and not just
* the ones we are collecting stats for.
*
- *
* function returns :
* 0: no updates, no need to call (*draw) later
* !0: state has changed, call (*draw) sometime later
return 1;
}
-/* This callback is used when tshark wants us to draw/update our
- * data to the output device. Since this is tshark only output is
- * stdout.
- * TShark will only call this callback once, which is when tshark has
- * finished reading all packets and exists.
+/* This callback is used when tshark wants us to draw/update our data to the
+ * output device. Since this is tshark, the only output is stdout.
+ * TShark will only call this callback once, which is when tshark has finished
+ * reading all packets and exits.
* If used with wireshark this may be called any time, perhaps once every 3
* seconds or so.
- * This function may even be called in parallell with (*reset) or (*draw)
- * so make sure there are no races. The data in the rpcstat_t can thus change
- * beneath us. Beware.
+ * This function may even be called in parallel with (*reset) or (*draw), so
+ * make sure there are no races. The data in the rpcstat_t can thus change
+ * beneath us. Beware!
*/
static void
rpcstat_draw(void *prs)
/* When called, this function will create a new instance of rpcstat.
- * program and version are whick onc-rpc program/version we want to
- * collect statistics for.
- * This function is called from tshark when it parses the -z rpc, arguments
- * and it creates a new instance to store statistics in and registers this
- * new instance for the rpc tap.
+ *
+ * program and version are which onc-rpc program/version we want to collect
+ * statistics for.
+ *
+ * This function is called from tshark when it parses the -z rpc, arguments and
+ * it creates a new instance to store statistics in and registers this new
+ * instance for the rpc tap.
*/
static void
rpcstat_init(const char *optarg, void* userdata _U_)
const char *filter=NULL;
GString *error_string;
- if(sscanf(optarg,"rpc,rtt,%d,%d,%n",&program,&version,&pos)==2){
+ if(sscanf(optarg,"rpc,srt,%d,%d,%n",&program,&version,&pos)==2){
if(pos){
filter=optarg+pos;
} else {
filter=NULL;
}
} else {
- fprintf(stderr, "tshark: invalid \"-z rpc,
rtt,<program>,<version>[,<filter>]\" argument\n");
+ fprintf(stderr, "tshark: invalid \"-z rpc,
srt,<program>,<version>[,<filter>]\" argument\n");
exit(1);
}
rpc_max_proc=-1;
g_hash_table_foreach(rpc_procs, (GHFunc)rpcstat_find_procs, NULL);
if(rpc_min_proc==-1){
- fprintf(stderr,"tshark: Invalid -z rpc,rrt,%d,%d\n",rpc_program,rpc_version);
+ fprintf(stderr,"tshark: Invalid -z rpc,srt,%d,%d\n",rpc_program,rpc_version);
fprintf(stderr," Program:%d version:%d isn't supported by tshark.\n", rpc_program, rpc_version);
exit(1);
}
rs->procedures[i].tot.nsecs=0;
}
-/* It is possible to create a filter and attach it to the callbacks. Then the
+/* It is possible to create a filter and attach it to the callbacks. Then the
* callbacks would only be invoked if the filter matched.
- * Evaluating filters is expensive and if we can avoid it and not use them
- * we gain performance.
- * In this case we do the filtering for protocol and version inside the
- * callback itself but use whatever filter the user provided.
- * (Perhaps the user only want the stats for nis+ traffic for certain objects?)
*
+ * Evaluating filters is expensive and if we can avoid it and not use them,
+ * then we gain performance.
+ *
+ * In this case, we do the filtering for protocol and version inside the
+ * callback itself but use whatever filter the user provided.
+ * (Perhaps the user only wants the stats for nis+ traffic for certain objects?)
*/
error_string=register_tap_listener("rpc", rs, filter, 0, rpcstat_reset, rpcstat_packet, rpcstat_draw);
g_free(rs->filter);
g_free(rs);
- fprintf(stderr, "tshark: Couldn't register rpc,rtt tap: %s\n",
+ fprintf(stderr, "tshark: Couldn't register rpc,srt tap: %s\n",
error_string->str);
g_string_free(error_string, TRUE);
exit(1);
void
register_tap_listener_rpcstat(void)
{
- register_stat_cmd_arg("rpc,rtt,", rpcstat_init,NULL);
+ register_stat_cmd_arg("rpc,srt,", rpcstat_init,NULL);
}
git.samba.org / obnox / wireshark / wip.git / blobdiff