1 | /* |
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2 | * Copyright 2018 Fiona Klute |
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3 | * |
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4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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5 | * you may not use this file except in compliance with the License. |
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6 | * You may obtain a copy of the License at |
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7 | * |
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8 | * http://www.apache.org/licenses/LICENSE-2.0 |
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9 | * |
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10 | * Unless required by applicable law or agreed to in writing, software |
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11 | * distributed under the License is distributed on an "AS IS" BASIS, |
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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13 | * See the License for the specific language governing permissions and |
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14 | * limitations under the License. |
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15 | */ |
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16 | |
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17 | #include "gnutls_watchdog.h" |
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18 | |
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19 | #include <httpd.h> |
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20 | #include <mod_watchdog.h> |
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21 | |
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22 | |
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23 | struct mgs_watchdog* mgs_new_singleton_watchdog(server_rec *s, char *name, |
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24 | apr_pool_t* p) |
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25 | { |
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26 | APR_OPTIONAL_FN_TYPE(ap_watchdog_get_instance) *inst_fn = |
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27 | APR_RETRIEVE_OPTIONAL_FN(ap_watchdog_get_instance); |
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28 | APR_OPTIONAL_FN_TYPE(ap_watchdog_register_callback) *reg_callback_fn = |
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29 | APR_RETRIEVE_OPTIONAL_FN(ap_watchdog_register_callback); |
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30 | APR_OPTIONAL_FN_TYPE(ap_watchdog_set_callback_interval) *mod_callback_fn = |
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31 | APR_RETRIEVE_OPTIONAL_FN(ap_watchdog_set_callback_interval); |
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32 | |
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33 | /* Check if all functions are available */ |
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34 | if (inst_fn == NULL || reg_callback_fn == NULL || mod_callback_fn == NULL) |
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35 | { |
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36 | ap_log_error(APLOG_MARK, APLOG_WARNING, APR_EGENERAL, s, |
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37 | "Could not retrieve watchdog functions, has " |
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38 | "mod_watchdog been loaded?"); |
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39 | return NULL; |
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40 | } |
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41 | |
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42 | apr_pool_t *wd_pool; |
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43 | apr_status_t rv = apr_pool_create(&wd_pool, p); |
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44 | if (rv != APR_SUCCESS) |
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45 | { |
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46 | ap_log_error(APLOG_MARK, APLOG_ERR, rv, s, |
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47 | "Creating pool for watchdog instance failed!"); |
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48 | return NULL; |
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49 | } |
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50 | |
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51 | struct mgs_watchdog *w = apr_palloc(wd_pool, sizeof(struct mgs_watchdog)); |
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52 | |
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53 | w->get_instance = inst_fn; |
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54 | w->register_callback = reg_callback_fn; |
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55 | w->set_callback_interval = mod_callback_fn; |
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56 | |
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57 | /* 0 -> run in child process, 1 -> singleton watchdog */ |
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58 | rv = w->get_instance(&w->wd, name, 0, 1, wd_pool); |
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59 | if (rv != APR_SUCCESS) |
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60 | { |
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61 | ap_log_error(APLOG_MARK, APLOG_ERR, rv, s, |
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62 | "Retrieving watchdog instance '%s' failed!", name); |
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63 | apr_pool_destroy(wd_pool); |
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64 | return NULL; |
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65 | } |
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66 | |
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67 | ap_log_error(APLOG_MARK, APLOG_DEBUG, rv, s, |
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68 | "watchdog init for %s", name); |
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69 | return w; |
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70 | } |
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