d0s3t3ch/wownero-puddle
1
0
Fork 0
mirror of https://git.wownero.com/wownero/wownero-puddle.git synced 2024-08-15 01:03:20 +00:00
Code Issues Projects Releases Wiki Activity

wait on DB resize whilst client(s) are being read

Browse source 
This catches a missed case of the trusted thread (i.e. downstream
client) reading.
This commit is contained in:
Jethro Grassie 2020-09-29 02:55:57 -04:00
parent ff323609b9
commit 08fa5c12fb
No known key found for this signature in database
GPG key ID: DE8ED755616565BB
1 changed files with 7 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

7
src/pool.c
View file

@ -470,6 +470,9 @@ database_resize(void)
log_warn("Cannot cannot acquire lock"); log_warn("Cannot cannot acquire lock");
return rc; return rc;
} }
pthread_mutex_lock(&mutex_clients);
while (clients_reading)
pthread_cond_wait(&cond_clients, &mutex_clients);
if ((rc = mdb_env_set_mapsize(env, DB_INIT_SIZE)) != 0) if ((rc = mdb_env_set_mapsize(env, DB_INIT_SIZE)) != 0)
{ {
err = mdb_strerror(rc); err = mdb_strerror(rc);
@ -492,6 +495,9 @@ database_resize(void)
log_warn("Cannot cannot acquire lock"); log_warn("Cannot cannot acquire lock");
return rc; return rc;
} }
pthread_mutex_lock(&mutex_clients);
while (clients_reading)
pthread_cond_wait(&cond_clients, &mutex_clients);
if ((rc = mdb_env_set_mapsize(env, ns)) != 0) if ((rc = mdb_env_set_mapsize(env, ns)) != 0)
{ {
err = mdb_strerror(rc); err = mdb_strerror(rc);
@ -503,6 +509,7 @@ database_resize(void)
} }
return 0; return 0;
unlock: unlock:
pthread_mutex_unlock(&mutex_clients);
pthread_rwlock_unlock(&rwlock_tx); pthread_rwlock_unlock(&rwlock_tx);
return rc; return rc;
} }