diff options
Diffstat (limited to 'src/lib/dev.c')
| -rw-r--r-- | src/lib/dev.c | 51 |
1 files changed, 43 insertions, 8 deletions
diff --git a/src/lib/dev.c b/src/lib/dev.c index d36764ed..e20d23d4 100644 --- a/src/lib/dev.c +++ b/src/lib/dev.c @@ -1026,24 +1026,39 @@ int ipcp_flow_alloc_reply(int fd, int response) return ret; } -int ipcp_flow_read(struct shm_du_buff ** sdb) +int ipcp_flow_read(int fd, struct shm_du_buff ** sdb) { - int fd; - struct rb_entry * e; - - e = shm_ap_rbuff_read(ai.rb); + int idx = -1; + int port_id = -1; pthread_rwlock_rdlock(&ai.data_lock); pthread_rwlock_rdlock(&ai.flows_lock); - fd = ai.ports[e->port_id].fd; + if ((port_id = ai.flows[fd].port_id) < 0) { + pthread_rwlock_unlock(&ai.flows_lock); + pthread_rwlock_unlock(&ai.data_lock); + return -ENOTALLOC; + } - *sdb = shm_rdrbuff_get(ai.rdrb, e->index); + pthread_rwlock_unlock(&ai.flows_lock); + pthread_rwlock_unlock(&ai.data_lock); + + idx = shm_ap_rbuff_read_port(ai.rb, port_id); + if (idx < 0) { + pthread_rwlock_rdlock(&ai.data_lock); + pthread_rwlock_rdlock(&ai.flows_lock); + return idx; + } + + pthread_rwlock_rdlock(&ai.data_lock); + pthread_rwlock_rdlock(&ai.flows_lock); + + *sdb = shm_rdrbuff_get(ai.rdrb, idx); pthread_rwlock_unlock(&ai.flows_lock); pthread_rwlock_unlock(&ai.data_lock); - return fd; + return 0; } int ipcp_flow_write(int fd, struct shm_du_buff * sdb) @@ -1114,6 +1129,26 @@ int local_flow_write(int fd, struct rb_entry * e) return 0; } +int ipcp_read_shim(struct shm_du_buff ** sdb) +{ + int fd; + struct rb_entry * e; + + e = shm_ap_rbuff_read(ai.rb); + + pthread_rwlock_rdlock(&ai.data_lock); + pthread_rwlock_rdlock(&ai.flows_lock); + + fd = ai.ports[e->port_id].fd; + + *sdb = shm_rdrbuff_get(ai.rdrb, e->index); + + pthread_rwlock_unlock(&ai.flows_lock); + pthread_rwlock_unlock(&ai.data_lock); + + return fd; +} + void ipcp_flow_del(struct shm_du_buff * sdb) { shm_rdrbuff_remove(ai.rdrb, shm_du_buff_get_idx(sdb)); |