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authordimitri staessens <dimitri.staessens@intec.ugent.be>2016-07-05 18:52:12 +0200
committerdimitri staessens <dimitri.staessens@intec.ugent.be>2016-07-05 19:07:25 +0200
commitbc9c60382b226e5a75a11a99364b9b799dc2b0c2 (patch)
treef9072634e81bc152c0ca52b927ab9984a845e0e8 /src/lib/shm_ap_rbuff.c
parentdb96f7d488681be47abfeec6c636fd4159a37660 (diff)
downloadouroboros-bc9c60382b226e5a75a11a99364b9b799dc2b0c2.tar.gz
ouroboros-bc9c60382b226e5a75a11a99364b9b799dc2b0c2.zip
lib: Change invalid pid to -1
The stack used pid 0 (the scheduler) to indicate an invalid process instance, probably as a leftover from the deprecated application process instance id. Using -1 is a better solution. Fixes #16.
Diffstat (limited to 'src/lib/shm_ap_rbuff.c')
-rw-r--r--src/lib/shm_ap_rbuff.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/lib/shm_ap_rbuff.c b/src/lib/shm_ap_rbuff.c
index f54627b7..e90afe19 100644
--- a/src/lib/shm_ap_rbuff.c
+++ b/src/lib/shm_ap_rbuff.c
@@ -348,9 +348,9 @@ ssize_t shm_ap_rbuff_read_port(struct shm_ap_rbuff * rb, int port_id)
pid_t shm_ap_rbuff_get_api(struct shm_ap_rbuff *rb)
{
- pid_t api = 0;
+ pid_t api = -1;
if (rb == NULL)
- return 0;
+ return -1;
pthread_mutex_lock(rb->shm_mutex);
api = rb->api;