lib: Change DA header to NSM

Functionality that was previously thought to be part of the DIF
Allocator is actually namespace management. Hence the file has been
renamed and the API updated.

10 files changed, 47 insertions, 43 deletions

diff --git a/include/ouroboros/CMakeLists.txt b/include/ouroboros/CMakeLists.txt
index 9e9fc789..c5f65d49 100644
--- a/include/ouroboros/CMakeLists.txt
+++ b/include/ouroboros/CMakeLists.txt
@@ -4,13 +4,13 @@ configure_file(
 
 set(HEADER_FILES
         cdap.h
-        da.h
         dev.h
         dif_config.h
         errno.h
         flow.h
         instance_name.h
         irm.h
+        nsm.h
         qos.h
 )
 
diff --git a/include/ouroboros/ipcp.h b/include/ouroboros/ipcp.h
index 89b9fa92..0d62bd59 100644
--- a/include/ouroboros/ipcp.h
+++ b/include/ouroboros/ipcp.h
@@ -46,7 +46,7 @@ int   ipcp_unreg(pid_t   pid,
                  size_t  difs_size);
 
 int   ipcp_enroll(pid_t  pid,
-                  char * member_name,
+                  char * dif_name,
                   char * n_1_dif);
 
 int   ipcp_bootstrap(pid_t              pid,
diff --git a/include/ouroboros/da.h b/include/ouroboros/nsm.h
index 406be7a8..69b1d9d2 100644
--- a/include/ouroboros/da.h
+++ b/include/ouroboros/nsm.h
@@ -1,7 +1,7 @@
 /*
  * Ouroboros - Copyright (C) 2016
  *
- * The API to consult the DIF Allocator
+ * The API to instruct the global Namespace Manager
  *
  *    Sander Vrijders <sander.vrijders@intec.ugent.be>
  *
@@ -20,18 +20,24 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
-#ifndef OUROBOROS_DA_H
-#define OUROBOROS_DA_H
+#ifndef OUROBOROS_NSM_H
+#define OUROBOROS_NSM_H
 
 #include <stdint.h>
 #include <unistd.h>
 
-char *  da_resolve_daf(char * daf_name);
+int    nsm_reg(char *  name,
+               char ** dafs,
+               size_t  dafs_size);
+
+int    nsm_unreg(char *  name,
+                 char ** dafs,
+                 size_t  dafs_size);
+
 /*
- * n_1_difs is an out parameter
- * The amount of n_1_difs is returned
+ * dafs is an out parameter
+ * The amount of DAFs is returned
  */
-ssize_t da_resolve_dap(char * name,
-                       char ** n_1_difs);
-
+ssize_t nsm_resolve(char *  name,
+                    char ** dafs);
 #endif
diff --git a/src/ipcpd/ipcp-ops.h b/src/ipcpd/ipcp-ops.h
index ffbc9cd7..a1d9f23f 100644
--- a/src/ipcpd/ipcp-ops.h
+++ b/src/ipcpd/ipcp-ops.h
@@ -30,7 +30,7 @@
 
 struct ipcp_ops {
         int   (* ipcp_bootstrap)(struct dif_config * conf);
-        int   (* ipcp_enroll)(char * member_name,
+        int   (* ipcp_enroll)(char * dif_name,
                               char * n_1_dif);
         int   (* ipcp_reg)(char ** dif_names,
                            size_t  len);
diff --git a/src/ipcpd/ipcp.c b/src/ipcpd/ipcp.c
index 901abae6..b5108712 100644
--- a/src/ipcpd/ipcp.c
+++ b/src/ipcpd/ipcp.c
@@ -159,7 +159,7 @@ void * ipcp_main_loop(void * o)
                         }
                         ret_msg.has_result = true;
                         ret_msg.result =
-                                _ipcp->ops->ipcp_enroll(msg->member_name,
+                                _ipcp->ops->ipcp_enroll(msg->dif_name,
                                                         msg->n_1_dif);
 
                         break;
diff --git a/src/irmd/main.c b/src/irmd/main.c
index 50055c4d..dff052a1 100644
--- a/src/irmd/main.c
+++ b/src/irmd/main.c
@@ -27,7 +27,7 @@
 #include <ouroboros/sockets.h>
 #include <ouroboros/irm.h>
 #include <ouroboros/ipcp.h>
-#include <ouroboros/da.h>
+#include <ouroboros/nsm.h>
 #include <ouroboros/list.h>
 #include <ouroboros/instance_name.h>
 #include <ouroboros/utils.h>
@@ -572,7 +572,6 @@ static int bootstrap_ipcp(instance_name_t *  api,
 static int enroll_ipcp(instance_name_t  * api,
                        char *             dif_name)
 {
-        char *  member = NULL;
         char ** n_1_difs = NULL;
         ssize_t n_1_difs_size = 0;
         struct ipcp_entry * entry = NULL;
@@ -596,16 +595,7 @@ static int enroll_ipcp(instance_name_t  * api,
                 return -1;
         }
 
-        member = da_resolve_daf(dif_name);
-        if (member == NULL) {
-                free(entry->dif_name);
-                entry->dif_name = NULL;
-                pthread_rwlock_unlock(&instance->reg_lock);
-                pthread_rwlock_unlock(&instance->state_lock);
-                return -1;
-        }
-
-        n_1_difs_size = da_resolve_dap(member, n_1_difs);
+        n_1_difs_size = nsm_resolve(dif_name, n_1_difs);
         if (n_1_difs_size < 1) {
                 free(entry->dif_name);
                 entry->dif_name = NULL;
@@ -615,7 +605,7 @@ static int enroll_ipcp(instance_name_t  * api,
                 return -1;
         }
 
-        if (ipcp_enroll(api->id, member, n_1_difs[0])) {
+        if (ipcp_enroll(api->id, dif_name, n_1_difs[0])) {
                 free(entry->dif_name);
                 entry->dif_name = NULL;
                 pthread_rwlock_unlock(&instance->reg_lock);
diff --git a/src/lib/CMakeLists.txt b/src/lib/CMakeLists.txt
index ed7f2fc6..2a75ef17 100644
--- a/src/lib/CMakeLists.txt
+++ b/src/lib/CMakeLists.txt
@@ -25,13 +25,13 @@ set(SOURCE_FILES
   # Add source files here
   bitmap.c
   cdap.c
-  da.c
   dev.c
   du_buff.c
   instance_name.c
   ipcp.c
   irm.c
   list.c
+  nsm.c
   shm_ap_rbuff.c
   shm_du_map.c
   sockets.c
diff --git a/src/lib/ipcp.c b/src/lib/ipcp.c
index a43afd21..730880f9 100644
--- a/src/lib/ipcp.c
+++ b/src/lib/ipcp.c
@@ -275,35 +275,32 @@ int ipcp_bootstrap(pid_t pid,
 }
 
 int ipcp_enroll(pid_t pid,
-                char * member_name,
+                char * dif_name,
                 char * n_1_dif)
 {
         ipcp_msg_t msg = IPCP_MSG__INIT;
         ipcp_msg_t * recv_msg = NULL;
         int ret = -1;
 
-        if (n_1_dif == NULL || member_name == NULL)
+        if (n_1_dif == NULL || dif_name == NULL)
                 return -EINVAL;
 
-        msg.code        = IPCP_MSG_CODE__IPCP_ENROLL;
-        msg.member_name = member_name;
-        msg.n_1_dif     = n_1_dif;
+        msg.code     = IPCP_MSG_CODE__IPCP_ENROLL;
+        msg.dif_name = dif_name;
+        msg.n_1_dif  = n_1_dif;
 
         recv_msg = send_recv_ipcp_msg(pid, &msg);
         if (recv_msg == NULL) {
-                free(msg.member_name);
                 return -1;
         }
 
         if (recv_msg->has_result == false) {
                 ipcp_msg__free_unpacked(recv_msg, NULL);
-                free(msg.member_name);
                 return -1;
         }
 
         ret = recv_msg->result;
         ipcp_msg__free_unpacked(recv_msg, NULL);
-        free(msg.member_name);
 
         return ret;
 }
diff --git a/src/lib/ipcpd_messages.proto b/src/lib/ipcpd_messages.proto
index 63e41986..9eb5707c 100644
--- a/src/lib/ipcpd_messages.proto
+++ b/src/lib/ipcpd_messages.proto
@@ -15,7 +15,7 @@ enum ipcp_msg_code {
 
 message ipcp_msg {
         required ipcp_msg_code code  =  1;
-        optional string member_name  =  2;
+        optional string dif_name     =  2;
         optional string n_1_dif      =  3;
         repeated string dif_names    =  4;
         optional int32  len          =  5;
diff --git a/src/lib/da.c b/src/lib/nsm.c
index 8e7756d1..069db139 100644
--- a/src/lib/da.c
+++ b/src/lib/nsm.c
@@ -1,7 +1,7 @@
 /*
  * Ouroboros - Copyright (C) 2016
  *
- * The API to instruct the DIF Allocator
+ * The API to instruct the global Namespace Manager
  *
  *    Sander Vrijders <sander.vrijders@intec.ugent.be>
  *
@@ -20,15 +20,26 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
-#include <ouroboros/da.h>
+#include <ouroboros/nsm.h>
 
-char * da_resolve_daf(char * daf_name)
+int nsm_reg(char * name,
+            char ** dafs,
+            size_t dafs_size)
 {
-        return NULL;
+
+        return -1;
+}
+
+int nsm_unreg(char * name,
+              char ** dafs,
+              size_t dafs_size)
+{
+
+        return -1;
 }
 
-ssize_t da_resolve_dap(char * name,
-                       char ** n_1_difs)
+ssize_t nsm_resolve(char * name,
+                    char ** dafs)
 {
-        return 0;
+        return -1;
 }