ouroboros/src/lib/shm_du_map.c, branch 0.2Ouroboros main repositoryhttp://www.ouroboros.rocks/cgit/ouroboros/atom?h=0.22016-07-03T09:05:43+00:00lib: shm_du_map full multi-block support2016-07-03T09:05:43+00:00dimitri staessensdimitri.staessens@intec.ugent.be2016-07-03T07:17:41+00:00urn:sha1:04f385a99f5e901598ee4b3d2655e458c92c06d8
shm_du_map now fully supports multi-block SDU's when the
SHM_DU_MAP_MULTI_BLOCK compilation flag is set (enabled by default).
Fixes #11.
lib: robust locking in shared memory and crash recovery2016-07-02T17:11:12+00:00dimitri staessensdimitri.staessens@intec.ugent.be2016-06-30T21:14:14+00:00urn:sha1:79475a4742bc28e1737044f2300bcb601e6e10bf
This PR enhances the shared memory providing recovery if a process
crashes. It adds a SHM_DU_TIMEOUT_MICROS variable, setting an
expiration time for SDU's when shared memory is full. If an
application doesn't read a blocking SDU within this time, the shared
memory will be cleansed of all SDU's for this application and the
application's rbuff will be cleared.
Some refactoring of the API's. Fixed wrong pthread checks in IRMd.
Fixes #13
Fixes #14
lib, irmd, ipcpd: Change pid to api2016-06-28T14:45:45+00:00Sander Vrijderssander.vrijders@intec.ugent.be2016-06-28T14:38:03+00:00urn:sha1:99d19307fae8f1370f52a62aee88fded624ad464
Changes the variable name as well to API instead of PID.
lib, irmd, ipcp: robust mutexes2016-06-20T22:14:14+00:00dimitri staessensdimitri.staessens@intec.ugent.be2016-06-20T21:49:35+00:00urn:sha1:a46114ec01e8d174a41744f4f1b49905613847dc
Update to POSIX 200112L to allow use of robust mutexes in the
shm_du_map. Removed the implementation of the rw_lock in favor of
pthread_rwlock_t.
Placeholder for the shm_du_map_sanitize function.
build: Change install directories and set correct permissions2016-06-20T18:57:25+00:00Sander Vrijderssander.vrijders@intec.ugent.be2016-06-20T18:57:25+00:00urn:sha1:16323dcc9df15020e368d4324cf1c1d9dceac805
This sets the correct install directories for all the binaries,
library and header files. It also sets the right permissions on the
sockets and shared memory so that regular users can also use the
ouroboros library. Root privileges are required to run the irmd.
Fixes #7
irmd, lib: use shm_du_map as lockfile.2016-06-17T14:01:20+00:00dimitri staessensdimitri.staessens@intec.ugent.be2016-06-17T13:55:23+00:00urn:sha1:dba896b9a0ca7cbe4fb379017672bd44a0a77ef0
Added the pid of the irmd to the shm_du_map. The IRMd will check for
an existing shm_du_map. If there is an existing file, it will exit if
the owner IRMd is running or remove it if the owner IRMd is not
running.
Also simplifies calculation of the shm_du_map pointers and corrects
exiting calls for the IRMd.
Fixes #8.
lib: fixed SHM_DU_BUFF_BLOCK_SIZE in shm_du_map2016-05-26T20:46:47+00:00dimitri staessensdimitri.staessens@intec.ugent.be2016-05-26T20:46:47+00:00urn:sha1:1821da84d7d8e956b64235801110949fc85d4e1dlib: allow running shm_du_map in single block mode2016-05-24T22:44:03+00:00dimitri staessensdimitri.staessens@intec.ugent.be2016-05-24T21:34:05+00:00urn:sha1:dafba02c1045b751375c0f4e2f67053e7019be6c
this allows disabling support for SDU's that are larger than a block
in the DU MAP by defining the variable SHM_MAP_SINGLE_BLOCK
lib: Add missing check upon garbage collection2016-05-17T20:18:09+00:00Sander Vrijderssander.vrijders@intec.ugent.be2016-05-17T20:18:09+00:00urn:sha1:39c326d7cc333e88cc6a608853290132299fae0d
There was a check missing upon garbage collection. If the whole DU map
has been used once, all DUs will have their garbage bit set to
one. This meant that the garbage collector would keep moving the tail
indefinitely.
lib: Fixed incorrect initialization2016-05-17T19:33:48+00:00Sander Vrijderssander.vrijders@intec.ugent.be2016-05-17T18:17:09+00:00urn:sha1:81e32e5d19bdc0dabd7473a31ddb0d6f1c95e18e
When moving the tail pointer in the DU map, blocks was never reset to
zero. This caused it to sometimes clean up too many DUs.