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author | dimitri staessens <dimitri.staessens@intec.ugent.be> | 2016-07-07 15:12:42 +0200 |
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committer | dimitri staessens <dimitri.staessens@intec.ugent.be> | 2016-07-07 15:12:42 +0200 |
commit | 04a8f3ceedefa63f9344311e5ff05ab3ce754fda (patch) | |
tree | b95e680ff8e2ef267587f959ab0a7f6ae5d93227 /include/ouroboros/lockfile.h | |
parent | 80441117cf61137c6a8c97e0779e70d76ae8541d (diff) | |
download | ouroboros-04a8f3ceedefa63f9344311e5ff05ab3ce754fda.tar.gz ouroboros-04a8f3ceedefa63f9344311e5ff05ab3ce754fda.zip |
lib: Add lockfile
The pid of the IRMd is stored in a lockfile in shared memory. This
makes checking if the IRMd is running independent of the
configuration, as previously the IRMd pid was stored at the end of the
shm_du_map, which could not be read by an IRMd that would be compiled
with different configuration options.
Also corrects some unnecessary includes
Fixes #21.
Diffstat (limited to 'include/ouroboros/lockfile.h')
-rw-r--r-- | include/ouroboros/lockfile.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/include/ouroboros/lockfile.h b/include/ouroboros/lockfile.h new file mode 100644 index 00000000..c2cf4572 --- /dev/null +++ b/include/ouroboros/lockfile.h @@ -0,0 +1,37 @@ +/* + * Ouroboros - Copyright (C) 2016 + * + * Lockfile for ouroboros system + * + * Dimitri Staessens <dimitri.staessens@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_LOCKFILE_H +#define OUROBOROS_LOCKFILE_H + +#include <sys/types.h> + +struct lockfile; + +struct lockfile * lockfile_create(); +struct lockfile * lockfile_open(); +void lockfile_close(struct lockfile * lf); +void lockfile_destroy(struct lockfile * lf); + +pid_t lockfile_owner(struct lockfile * lf); + +#endif |