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author | Sander Vrijders <sander.vrijders@intec.ugent.be> | 2016-08-24 18:48:17 +0200 |
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committer | Sander Vrijders <sander.vrijders@intec.ugent.be> | 2016-08-24 18:48:17 +0200 |
commit | 103325209373f0aec818efd775f91243eb912a33 (patch) | |
tree | dfed42eeaea49ec839f867d89dda6a2cc69b560a /src/ipcpd/normal/ribmgr.c | |
parent | f32db895e62152e1518fc5e184d19743d35e6cad (diff) | |
parent | 9c0c55198c2406fea6be189e1ec6b3ac3cc565fc (diff) | |
download | ouroboros-103325209373f0aec818efd775f91243eb912a33.tar.gz ouroboros-103325209373f0aec818efd775f91243eb912a33.zip |
Merged in dstaesse/ouroboros/be-ipcp-locks (pull request #221)
ipcpd: Revised locking
Diffstat (limited to 'src/ipcpd/normal/ribmgr.c')
-rw-r--r-- | src/ipcpd/normal/ribmgr.c | 61 |
1 files changed, 33 insertions, 28 deletions
diff --git a/src/ipcpd/normal/ribmgr.c b/src/ipcpd/normal/ribmgr.c index c8d517b5..9b61e180 100644 --- a/src/ipcpd/normal/ribmgr.c +++ b/src/ipcpd/normal/ribmgr.c @@ -254,15 +254,15 @@ int ribmgr_cdap_write(struct cdap * instance, static_info_msg_t * msg; int ret = 0; - pthread_mutex_lock(&_ipcp->state_lock); - if (_ipcp->state == IPCP_PENDING_ENROLL && + pthread_rwlock_wrlock(&_ipcp->state_lock); + if (ipcp_get_state(_ipcp) == IPCP_PENDING_ENROLL && strcmp(name, STATIC_INFO) == 0) { LOG_DBG("Received static DIF information."); msg = static_info_msg__unpack(NULL, len, data); if (msg == NULL) { - ipcp_state_change(_ipcp, IPCP_INIT); - pthread_mutex_unlock(&_ipcp->state_lock); + ipcp_set_state(_ipcp, IPCP_INIT); + pthread_rwlock_unlock(&_ipcp->state_lock); cdap_send_reply(instance, invoke_id, -1, NULL, 0); LOG_ERR("Failed to unpack static info message."); return -1; @@ -280,8 +280,8 @@ int ribmgr_cdap_write(struct cdap * instance, rib->address = msg->address; if (frct_init(&rib->dtc, rib->address)) { - ipcp_state_change(_ipcp, IPCP_INIT); - pthread_mutex_unlock(&_ipcp->state_lock); + ipcp_set_state(_ipcp, IPCP_INIT); + pthread_rwlock_unlock(&_ipcp->state_lock); cdap_send_reply(instance, invoke_id, -1, NULL, 0); static_info_msg__free_unpacked(msg, NULL); LOG_ERR("Failed to init FRCT"); @@ -289,9 +289,11 @@ int ribmgr_cdap_write(struct cdap * instance, } static_info_msg__free_unpacked(msg, NULL); - } else + } else { ret = -1; - pthread_mutex_unlock(&_ipcp->state_lock); + } + + pthread_rwlock_unlock(&_ipcp->state_lock); if (cdap_send_reply(instance, invoke_id, ret, NULL, 0)) { LOG_ERR("Failed to send reply to write request."); @@ -332,13 +334,13 @@ int ribmgr_cdap_start(struct cdap * instance, size_t len = 0; int iid = 0; - pthread_mutex_lock(&_ipcp->state_lock); - if (_ipcp->state == IPCP_ENROLLED && + pthread_rwlock_wrlock(&_ipcp->state_lock); + if (ipcp_get_state(_ipcp) == IPCP_ENROLLED && strcmp(name, ENROLLMENT) == 0) { LOG_DBG("New enrollment request."); if (cdap_send_reply(instance, invoke_id, 0, NULL, 0)) { - pthread_mutex_unlock(&_ipcp->state_lock); + pthread_rwlock_unlock(&_ipcp->state_lock); LOG_ERR("Failed to send reply to enrollment request."); return -1; } @@ -357,14 +359,14 @@ int ribmgr_cdap_start(struct cdap * instance, len = static_info_msg__get_packed_size(&stat_info); if (len == 0) { - pthread_mutex_unlock(&_ipcp->state_lock); + pthread_rwlock_unlock(&_ipcp->state_lock); LOG_ERR("Failed to get size of static information."); return -1; } data = malloc(len); if (data == NULL) { - pthread_mutex_unlock(&_ipcp->state_lock); + pthread_rwlock_unlock(&_ipcp->state_lock); LOG_ERR("Failed to allocate memory."); return -1; } @@ -378,7 +380,7 @@ int ribmgr_cdap_start(struct cdap * instance, iid = cdap_send_write(instance, STATIC_INFO, data, len, 0); if (iid < 0) { pthread_mutex_unlock(&rib->cdap_reqs_lock); - pthread_mutex_unlock(&_ipcp->state_lock); + pthread_rwlock_unlock(&_ipcp->state_lock); free(data); LOG_ERR("Failed to send static information."); return -1; @@ -386,7 +388,7 @@ int ribmgr_cdap_start(struct cdap * instance, if (cdap_result_wait(instance, WRITE, STATIC_INFO, iid)) { pthread_mutex_unlock(&rib->cdap_reqs_lock); - pthread_mutex_unlock(&_ipcp->state_lock); + pthread_rwlock_unlock(&_ipcp->state_lock); free(data); LOG_ERR("Remote did not receive static information."); return -1; @@ -402,7 +404,7 @@ int ribmgr_cdap_start(struct cdap * instance, iid = cdap_send_stop(instance, ENROLLMENT); if (iid < 0) { pthread_mutex_unlock(&rib->cdap_reqs_lock); - pthread_mutex_unlock(&_ipcp->state_lock); + pthread_rwlock_unlock(&_ipcp->state_lock); free(data); LOG_ERR("Failed to send stop of enrollment."); return -1; @@ -410,7 +412,7 @@ int ribmgr_cdap_start(struct cdap * instance, if (cdap_result_wait(instance, STOP, ENROLLMENT, iid)) { pthread_mutex_unlock(&rib->cdap_reqs_lock); - pthread_mutex_unlock(&_ipcp->state_lock); + pthread_rwlock_unlock(&_ipcp->state_lock); free(data); LOG_ERR("Remote failed to complete enrollment."); return -1; @@ -420,12 +422,12 @@ int ribmgr_cdap_start(struct cdap * instance, free(data); } else { if (cdap_send_reply(instance, invoke_id, -1, NULL, 0)) { - pthread_mutex_unlock(&_ipcp->state_lock); + pthread_rwlock_unlock(&_ipcp->state_lock); LOG_ERR("Failed to send reply to start request."); return -1; } } - pthread_mutex_unlock(&_ipcp->state_lock); + pthread_rwlock_unlock(&_ipcp->state_lock); return 0; } @@ -436,21 +438,21 @@ int ribmgr_cdap_stop(struct cdap * instance, { int ret = 0; - pthread_mutex_lock(&_ipcp->state_lock); - if (_ipcp->state == IPCP_PENDING_ENROLL && + pthread_rwlock_wrlock(&_ipcp->state_lock); + if (ipcp_get_state(_ipcp) == IPCP_PENDING_ENROLL && strcmp(name, ENROLLMENT) == 0) { LOG_DBG("Stop enrollment received."); - ipcp_state_change(_ipcp, IPCP_ENROLLED); + ipcp_set_state(_ipcp, IPCP_ENROLLED); } else ret = -1; if (cdap_send_reply(instance, invoke_id, ret, NULL, 0)) { - pthread_mutex_unlock(&_ipcp->state_lock); + pthread_rwlock_unlock(&_ipcp->state_lock); LOG_ERR("Failed to send reply to stop request."); return -1; } - pthread_mutex_unlock(&_ipcp->state_lock); + pthread_rwlock_unlock(&_ipcp->state_lock); return 0; } @@ -486,11 +488,11 @@ int ribmgr_add_flow(int fd) flow->instance = instance; flow->fd = fd; - pthread_mutex_lock(&_ipcp->state_lock); + pthread_rwlock_wrlock(&_ipcp->state_lock); pthread_rwlock_wrlock(&rib->flows_lock); if (list_empty(&rib->flows) && - _ipcp->state == IPCP_INIT) { - ipcp_state_change(_ipcp, IPCP_PENDING_ENROLL); + ipcp_get_state(_ipcp) == IPCP_INIT) { + ipcp_set_state(_ipcp, IPCP_PENDING_ENROLL); pthread_mutex_lock(&rib->cdap_reqs_lock); iid = cdap_send_start(instance, @@ -498,6 +500,7 @@ int ribmgr_add_flow(int fd) if (iid < 0) { pthread_mutex_unlock(&rib->cdap_reqs_lock); pthread_rwlock_unlock(&rib->flows_lock); + pthread_rwlock_unlock(&_ipcp->state_lock); LOG_ERR("Failed to start enrollment."); cdap_destroy(instance); free(flow); @@ -507,6 +510,7 @@ int ribmgr_add_flow(int fd) if (cdap_result_wait(instance, START, ENROLLMENT, iid)) { pthread_mutex_unlock(&rib->cdap_reqs_lock); pthread_rwlock_unlock(&rib->flows_lock); + pthread_rwlock_unlock(&_ipcp->state_lock); LOG_ERR("Failed to start enrollment."); cdap_destroy(instance); free(flow); @@ -514,10 +518,10 @@ int ribmgr_add_flow(int fd) } pthread_mutex_unlock(&rib->cdap_reqs_lock); } - pthread_mutex_unlock(&_ipcp->state_lock); list_add(&flow->next, &rib->flows); pthread_rwlock_unlock(&rib->flows_lock); + pthread_rwlock_unlock(&_ipcp->state_lock); return 0; } @@ -534,6 +538,7 @@ int ribmgr_remove_flow(int fd) if (cdap_destroy(flow->instance)) LOG_ERR("Failed to destroy CDAP instance."); list_del(&flow->next); + pthread_rwlock_unlock(&rib->flows_lock); free(flow); return 0; } |