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Diffstat (limited to 'src/ipcpd/ipcp.c')
-rw-r--r--src/ipcpd/ipcp.c77
1 files changed, 77 insertions, 0 deletions
diff --git a/src/ipcpd/ipcp.c b/src/ipcpd/ipcp.c
index f40c70e6..eb83f3cc 100644
--- a/src/ipcpd/ipcp.c
+++ b/src/ipcpd/ipcp.c
@@ -35,6 +35,7 @@
#define OUROBOROS_PREFIX "ipcpd/ipcp"
#define IPCP_INFO "info"
+#define ALLOC_TIMEOUT 10 * MILLION /* 10 ms */
#include <ouroboros/hash.h>
#include <ouroboros/logs.h>
@@ -256,6 +257,82 @@ static void * acceptloop(void * o)
return (void *) 0;
}
+int ipcp_wait_flow_req_arr(const uint8_t * dst,
+ qosspec_t qs,
+ time_t mpl,
+ const void * data,
+ size_t len)
+{
+ struct timespec ts = {0, ALLOC_TIMEOUT};
+ struct timespec abstime;
+ int fd;
+
+ clock_gettime(PTHREAD_COND_CLOCK, &abstime);
+
+ pthread_mutex_lock(&ipcpi.alloc_lock);
+
+ while (ipcpi.alloc_id != -1 && ipcp_get_state() == IPCP_OPERATIONAL) {
+ ts_add(&abstime, &ts, &abstime);
+ pthread_cond_timedwait(&ipcpi.alloc_cond,
+ &ipcpi.alloc_lock,
+ &abstime);
+ }
+
+ if (ipcp_get_state() != IPCP_OPERATIONAL) {
+ pthread_mutex_unlock(&ipcpi.alloc_lock);
+ log_err("Won't allocate over non-operational IPCP.");
+ return -EIPCPSTATE;
+ }
+
+ assert(ipcpi.alloc_id == -1);
+
+ fd = ipcp_flow_req_arr(dst, ipcp_dir_hash_len(), qs, mpl, data, len);
+ if (fd < 0) {
+ pthread_mutex_unlock(&ipcpi.alloc_lock);
+ log_err("Failed to get fd for flow.");
+ return -ENOTALLOC;
+ }
+
+ ipcpi.alloc_id = fd;
+ pthread_cond_broadcast(&ipcpi.alloc_cond);
+
+ pthread_mutex_unlock(&ipcpi.alloc_lock);
+
+ return fd;
+
+}
+
+int ipcp_wait_flow_resp(const int fd)
+{
+ struct timespec ts = {0, ALLOC_TIMEOUT};
+ struct timespec abstime;
+
+ clock_gettime(PTHREAD_COND_CLOCK, &abstime);
+
+ pthread_mutex_lock(&ipcpi.alloc_lock);
+
+ while (ipcpi.alloc_id != fd && ipcp_get_state() == IPCP_OPERATIONAL) {
+ ts_add(&abstime, &ts, &abstime);
+ pthread_cond_timedwait(&ipcpi.alloc_cond,
+ &ipcpi.alloc_lock,
+ &abstime);
+ }
+
+ if (ipcp_get_state() != IPCP_OPERATIONAL) {
+ pthread_mutex_unlock(&ipcpi.alloc_lock);
+ return -1;
+ }
+
+ assert(ipcpi.alloc_id == fd);
+
+ ipcpi.alloc_id = -1;
+ pthread_cond_broadcast(&ipcpi.alloc_cond);
+
+ pthread_mutex_unlock(&ipcpi.alloc_lock);
+
+ return 0;
+}
+
static void free_msg(void * o)
{
ipcp_msg__free_unpacked((ipcp_msg_t *) o, NULL);