1 | /*
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2 | samba -- Unix SMB/CIFS implementation.
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3 | Copyright (C) 2002 by Martin Pool
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4 |
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5 | This program is free software; you can redistribute it and/or modify
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6 | it under the terms of the GNU General Public License as published by
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7 | the Free Software Foundation; either version 3 of the License, or
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8 | (at your option) any later version.
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9 |
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10 | This program is distributed in the hope that it will be useful,
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11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | GNU General Public License for more details.
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14 |
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15 | You should have received a copy of the GNU General Public License
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16 | along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 | */
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18 |
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19 | #include "includes.h"
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20 |
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21 | /**
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22 | * @file dmallocmsg.c
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23 | *
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24 | * Glue code to cause dmalloc info to come out when we receive a prod
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25 | * over samba messaging.
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26 | **/
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27 |
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28 | #ifdef ENABLE_DMALLOC
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29 | static unsigned long our_dm_mark = 0;
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30 | #endif /* ENABLE_DMALLOC */
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31 |
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32 |
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33 | /**
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34 | * Respond to a POOL_USAGE message by sending back string form of memory
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35 | * usage stats.
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36 | **/
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37 | static void msg_req_dmalloc_mark(struct messaging_context *msg,
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38 | void *private_data,
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39 | uint32_t msg_type,
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40 | struct server_id server_id,
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41 | DATA_BLOB *data)
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42 | {
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43 | #ifdef ENABLE_DMALLOC
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44 | our_dm_mark = dmalloc_mark();
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45 | DEBUG(2,("Got MSG_REQ_DMALLOC_MARK: mark set\n"));
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46 | #else
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47 | DEBUG(2,("Got MSG_REQ_DMALLOC_MARK but dmalloc not in this process\n"));
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48 | #endif
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49 | }
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50 |
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51 |
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52 |
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53 | static void msg_req_dmalloc_log_changed(struct messaging_context *msg,
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54 | void *private_data,
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55 | uint32_t msg_type,
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56 | struct server_id server_id,
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57 | DATA_BLOB *data)
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58 | {
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59 | #ifdef ENABLE_DMALLOC
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60 | dmalloc_log_changed(our_dm_mark, True, True, True);
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61 | DEBUG(2,("Got MSG_REQ_DMALLOC_LOG_CHANGED: done\n"));
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62 | #else
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63 | DEBUG(2,("Got MSG_REQ_DMALLOC_LOG_CHANGED but dmalloc not in this process\n"));
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64 | #endif
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65 | }
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66 |
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67 |
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68 | /**
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69 | * Register handler for MSG_REQ_POOL_USAGE
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70 | **/
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71 | void register_dmalloc_msgs(struct messaging_context *msg_ctx)
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72 | {
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73 | messaging_register(msg_ctx, NULL, MSG_REQ_DMALLOC_MARK,
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74 | msg_req_dmalloc_mark);
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75 | messaging_register(msg_ctx, NULL, MSG_REQ_DMALLOC_LOG_CHANGED,
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76 | msg_req_dmalloc_log_changed);
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77 | DEBUG(2, ("Registered MSG_REQ_DMALLOC_MARK and LOG_CHANGED\n"));
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78 | }
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