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authorSander Vrijders <sander.vrijders@intec.ugent.be>2016-08-24 18:48:17 +0200
committerSander Vrijders <sander.vrijders@intec.ugent.be>2016-08-24 18:48:17 +0200
commit103325209373f0aec818efd775f91243eb912a33 (patch)
treedfed42eeaea49ec839f867d89dda6a2cc69b560a /src/ipcpd/normal/ribmgr.c
parentf32db895e62152e1518fc5e184d19743d35e6cad (diff)
parent9c0c55198c2406fea6be189e1ec6b3ac3cc565fc (diff)
downloadouroboros-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.c61
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;
}