lib: Add call to reserve blocks in rdrbuff

This adds a call ipcp_sdb_reserve to reserve memory in the rdrbuff
without directly writing to a flow. The ipcp_flow_del function was
renamed to ipcp_sdb_release. The functions operating on sdbs are moved
to their own header.

4 files changed, 13 insertions, 13 deletions

diff --git a/src/ipcpd/normal/dt.c b/src/ipcpd/normal/dt.c
index 593064f4..6ac73a93 100644
--- a/src/ipcpd/normal/dt.c
+++ b/src/ipcpd/normal/dt.c
@@ -93,7 +93,7 @@ static int sdu_handler(int                  fd,
         if (pci.dst_addr != ipcpi.dt_addr) {
                 if (pci.ttl == 0) {
                         log_dbg("TTL was zero.");
-                        ipcp_flow_del(sdb);
+                        ipcp_sdb_release(sdb);
                         return 0;
                 }
 
@@ -103,7 +103,7 @@ static int sdu_handler(int                  fd,
                 if (fd < 0) {
                         pff_unlock(dt.pff[qc]);
                         log_err("No next hop for %" PRIu64, pci.dst_addr);
-                        ipcp_flow_del(sdb);
+                        ipcp_sdb_release(sdb);
                         return -1;
                 }
 
@@ -111,7 +111,7 @@ static int sdu_handler(int                  fd,
 
                 if (ipcp_flow_write(fd, sdb)) {
                         log_err("Failed to write SDU to fd %d.", fd);
-                        ipcp_flow_del(sdb);
+                        ipcp_sdb_release(sdb);
                         return -1;
                 }
         } else {
@@ -268,7 +268,7 @@ int dt_write_sdu(struct pci *         pci,
                 pff_unlock(dt.pff[pci->qos_id]);
                 log_err("Could not get nhop for address %" PRIu64,
                         pci->dst_addr);
-                ipcp_flow_del(sdb);
+                ipcp_sdb_release(sdb);
                 return -1;
         }
 
@@ -276,13 +276,13 @@ int dt_write_sdu(struct pci *         pci,
 
         if (shm_pci_ser(sdb, pci)) {
                 log_err("Failed to serialize PDU.");
-                ipcp_flow_del(sdb);
+                ipcp_sdb_release(sdb);
                 return -1;
         }
 
         if (ipcp_flow_write(fd, sdb)) {
                 log_err("Failed to write SDU to fd %d.", fd);
-                ipcp_flow_del(sdb);
+                ipcp_sdb_release(sdb);
                 return -1;
         }
 
diff --git a/src/ipcpd/normal/fa.c b/src/ipcpd/normal/fa.c
index 6c3df7a1..131100db 100644
--- a/src/ipcpd/normal/fa.c
+++ b/src/ipcpd/normal/fa.c
@@ -61,7 +61,7 @@ static int sdu_handler(int                  fd,
 
         if (frct_i_write_sdu(fa.fd_to_cep_id[fd], sdb)) {
                 pthread_rwlock_unlock(&fa.flows_lock);
-                ipcp_flow_del(sdb);
+                ipcp_sdb_release(sdb);
                 log_warn("Failed to hand SDU to FRCT.");
                 return -1;
         }
diff --git a/src/ipcpd/normal/frct.c b/src/ipcpd/normal/frct.c
index bfcde1b3..71e32bd1 100644
--- a/src/ipcpd/normal/frct.c
+++ b/src/ipcpd/normal/frct.c
@@ -229,7 +229,7 @@ int frct_post_sdu(struct pci *         pci,
                                                  pci->src_cep_id);
                         if (instance == NULL) {
                                 pthread_mutex_unlock(&frct.instances_lock);
-                                ipcp_flow_del(sdb);
+                                ipcp_sdb_release(sdb);
                                 return -ENOMEM;
                         }
                         id = instance->cep_id;
@@ -237,7 +237,7 @@ int frct_post_sdu(struct pci *         pci,
                         instance = frct.instances[pci->dst_cep_id];
                         if (instance == NULL) {
                                 pthread_mutex_unlock(&frct.instances_lock);
-                                ipcp_flow_del(sdb);
+                                ipcp_sdb_release(sdb);
                                 return -1;
                         }
                         id = pci->dst_cep_id;
@@ -253,16 +253,16 @@ int frct_post_sdu(struct pci *         pci,
 
                 if (fa_post_buf(id, &buf)) {
                         log_err("Failed to hand buffer to FA.");
-                        ipcp_flow_del(sdb);
+                        ipcp_sdb_release(sdb);
                         return -1;
                 }
 
-                ipcp_flow_del(sdb);
+                ipcp_sdb_release(sdb);
         } else {
                 /* FIXME: Known cep-ids are delivered to FA (minimal DTP) */
                 if (fa_post_sdu(pci->dst_cep_id, sdb)) {
                         log_err("Failed to hand SDU to FA.");
-                        ipcp_flow_del(sdb);
+                        ipcp_sdb_release(sdb);
                         return -1;
                 }
         }
diff --git a/src/ipcpd/normal/shm_pci.h b/src/ipcpd/normal/shm_pci.h
index 0c54c883..ff0b17ea 100644
--- a/src/ipcpd/normal/shm_pci.h
+++ b/src/ipcpd/normal/shm_pci.h
@@ -23,7 +23,7 @@
 #ifndef OUROBOROS_IPCPD_NORMAL_SHM_PCI_H
 #define OUROBOROS_IPCPD_NORMAL_SHM_PCI_H
 
-#include <ouroboros/shm_rdrbuff.h>
+#include <ouroboros/shm_du_buff.h>
 #include <ouroboros/utils.h>
 #include <ouroboros/qos.h>