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Diffstat (limited to 'external/unbound/util/shm_side/shm_main.h')
| -rw-r--r-- | external/unbound/util/shm_side/shm_main.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/external/unbound/util/shm_side/shm_main.h b/external/unbound/util/shm_side/shm_main.h new file mode 100644 index 000000000..8e4f4d051 --- /dev/null +++ b/external/unbound/util/shm_side/shm_main.h @@ -0,0 +1,86 @@ +/* + * util/shm_side/shm_main.h - control the shared memory for unbound. + * + * Copyright (c) 2007, NLnet Labs. All rights reserved. + * + * This software is open source. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * Neither the name of the NLNET LABS nor the names of its contributors may + * be used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * \file + * + * This file contains functions for the SHM side. + */ + +#ifndef UTIL_SHM_SIDE_MAIN_H +#define UTIL_SHM_SIDE_MAIN_H +struct daemon; +struct worker; + +/** Some global statistics that are not in struct stats_info, + * this struct is shared on a shm segment */ +struct shm_stat_info { + + int num_threads; + + struct { + struct timeval now; + struct timeval up; + struct timeval elapsed; + } time; + + struct { + size_t msg; + size_t rrset; + size_t val; + size_t iter; + size_t subnet; + } mem; +}; + +/** + * The SHM info. + */ +struct shm_main_info { + /** stats_info array, shared memory segment. + * [0] is totals, [1..thread_num] are per-thread stats */ + struct stats_info* ptr_arr; + /** the global stats block, shared memory segment */ + struct shm_stat_info* ptr_ctl; + int key; + int id_ctl; + int id_arr; +}; + +int shm_main_init(struct daemon* daemon); +void shm_main_shutdown(struct daemon* daemon); +void shm_main_run(struct worker *worker); + +#endif /* UTIL_SHM_SIDE_MAIN_H */ |