diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/ouroboros/CMakeLists.txt | 1 | ||||
| -rw-r--r-- | include/ouroboros/shm_du_map.h | 71 |
2 files changed, 72 insertions, 0 deletions
diff --git a/include/ouroboros/CMakeLists.txt b/include/ouroboros/CMakeLists.txt index 167cf0e2..a196140b 100644 --- a/include/ouroboros/CMakeLists.txt +++ b/include/ouroboros/CMakeLists.txt @@ -14,6 +14,7 @@ set(HEADER_FILES list.h logs.h rina_name.h + shm_du_map.h sockets.h utils.h ) diff --git a/include/ouroboros/shm_du_map.h b/include/ouroboros/shm_du_map.h new file mode 100644 index 00000000..05c49c2d --- /dev/null +++ b/include/ouroboros/shm_du_map.h @@ -0,0 +1,71 @@ +/* + * Ouroboros - Copyright (C) 2016 + * + * Shared memory map for data units + * + * Dimitri Staessens <dimitri.staessens@intec.ugent.be> + * Sander Vrijders <sander.vrijders@intec.ugent.be> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef OUROBOROS_SHM_DU_MAP_H +#define OUROBOROS_SHM_DU_MAP_H + +#ifndef _POSIX_C_SOURCE +#define _POSIX_C_SOURCE 199506L +#endif + +#define OUROBOROS_PREFIX "shm_du_map" + +#ifndef SHM_DU_BUFF_BLOCK_SIZE +#define SHM_DU_BUFF_BLOCK_SIZE sysconf(_SC_PAGESIZE) +#endif + +#ifndef SHM_DU_MAP_FILENAME +#define SHM_DU_MAP_FILENAME "ouroboros_du_map" +#endif + +#ifndef SHM_BLOCKS_IN_MAP +#define SHM_BLOCKS_IN_MAP (1 << 12) +#endif + +#include "common.h" +#include "logs.h" + +struct shm_du_buff; +struct shm_du_map; + +struct shm_du_map * shm_du_map_create(); +struct shm_du_map * shm_du_map_open(); +void shm_du_map_close(struct shm_du_map * dum); + +struct shm_du_buff * shm_create_du_buff(struct shm_du_map * dum, + size_t size, + size_t headspace, + uint8_t * data, + size_t len); +int shm_release_du_buff(struct shm_du_map * dum); + +uint8_t * shm_du_buff_head_alloc(struct shm_du_buff * sdb, + size_t size); +uint8_t * shm_du_buff_tail_alloc(struct shm_du_buff * sdb, + size_t size); +int shm_du_buff_head_release(struct shm_du_buff * sdb, + size_t size); +int shm_du_buff_tail_release(struct shm_du_buff * sdb, + size_t size); + +#endif /* OUROBOROS_SHM_DU_MAP_H */ |