[Openvpn-devel] [M] Change in openvpn[master]: reliable: Move gc_arena inside reliable_print_ids

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Hello plaisthos,

I'd like you to do a code review.
Please visit

    http://gerrit.openvpn.net/c/openvpn/+/1083?usp=email

to review the following change.


Change subject: reliable: Move gc_arena inside reliable_print_ids
......................................................................

reliable: Move gc_arena inside reliable_print_ids

There was no user that actually used it for
anything else. But there were some previous
users that generated a now useless gc_arena.

While looking through the code, modernize
the loop variable usage.

Change-Id: I8cefa9a406fe90bb3cbe481304782c639691a3a0
Signed-off-by: Frank Lichtenheld <fr...@li...>
---
M src/openvpn/reliable.c
1 file changed, 25 insertions(+), 56 deletions(-)



  git pull ssh://gerrit.openvpn.net:29418/openvpn refs/changes/83/1083/1

diff --git a/src/openvpn/reliable.c b/src/openvpn/reliable.c
index 424d194..6477c45 100644
--- a/src/openvpn/reliable.c
+++ b/src/openvpn/reliable.c
@@ -446,13 +446,13 @@
 #ifdef ENABLE_DEBUG
 /* print the current sequence of active packet IDs */
 static const char *
-reliable_print_ids(const struct reliable *rel, struct gc_arena *gc)
+reliable_print_ids(const struct reliable *rel)
 {
-    struct buffer out = alloc_buf_gc(256, gc);
-    int i;
+    struct gc_arena gc = gc_new();
+    struct buffer out = alloc_buf_gc(256, &gc);
 
     buf_printf(&out, "[" packet_id_format "]", (packet_id_print_type)rel->packet_id);
-    for (i = 0; i < rel->size; ++i)
+    for (int i = 0; i < rel->size; ++i)
     {
         const struct reliable_entry *e = &rel->array[i];
         if (e->active)
@@ -460,6 +460,7 @@
             buf_printf(&out, " " packet_id_format, (packet_id_print_type)e->packet_id);
         }
     }
+    gc_free(&gc);
     return BSTR(&out);
 }
 #endif /* ENABLE_DEBUG */
@@ -468,9 +469,7 @@
 bool
 reliable_can_get(const struct reliable *rel)
 {
-    struct gc_arena gc = gc_new();
-    int i;
-    for (i = 0; i < rel->size; ++i)
+    for (int i = 0; i < rel->size; ++i)
     {
         const struct reliable_entry *e = &rel->array[i];
         if (!e->active)
@@ -478,8 +477,7 @@
             return true;
         }
     }
-    dmsg(D_REL_LOW, "ACK no free receive buffer available: %s", reliable_print_ids(rel, &gc));
-    gc_free(&gc);
+    dmsg(D_REL_LOW, "ACK no free receive buffer available: %s", reliable_print_ids(rel));
     return false;
 }
 
@@ -487,13 +485,11 @@
 bool
 reliable_not_replay(const struct reliable *rel, packet_id_type id)
 {
-    struct gc_arena gc = gc_new();
-    int i;
     if (reliable_pid_min(id, rel->packet_id))
     {
         goto bad;
     }
-    for (i = 0; i < rel->size; ++i)
+    for (int i = 0; i < rel->size; ++i)
     {
         const struct reliable_entry *e = &rel->array[i];
         if (e->active && e->packet_id == id)
@@ -501,12 +497,10 @@
             goto bad;
         }
     }
-    gc_free(&gc);
     return true;
 
 bad:
-    dmsg(D_REL_DEBUG, "ACK " packet_id_format " is a replay: %s", (packet_id_print_type)id, reliable_print_ids(rel, &gc));
-    gc_free(&gc);
+    dmsg(D_REL_DEBUG, "ACK " packet_id_format " is a replay: %s", (packet_id_print_type)id, reliable_print_ids(rel));
     return false;
 }
 
@@ -514,19 +508,15 @@
 bool
 reliable_wont_break_sequentiality(const struct reliable *rel, packet_id_type id)
 {
-    struct gc_arena gc = gc_new();
-
     const int ret = reliable_pid_in_range2(id, rel->packet_id, rel->size);
 
     if (!ret)
     {
         dmsg(D_REL_LOW, "ACK " packet_id_format " breaks sequentiality: %s",
-             (packet_id_print_type)id, reliable_print_ids(rel, &gc));
+             (packet_id_print_type)id, reliable_print_ids(rel));
     }
 
     dmsg(D_REL_DEBUG, "ACK RWBS rel->size=%d rel->packet_id=%08x id=%08x ret=%d", rel->size, rel->packet_id, id, ret);
-
-    gc_free(&gc);
     return ret;
 }
 
@@ -534,8 +524,7 @@
 struct buffer *
 reliable_get_buf(struct reliable *rel)
 {
-    int i;
-    for (i = 0; i < rel->size; ++i)
+    for (int i = 0; i < rel->size; ++i)
     {
         struct reliable_entry *e = &rel->array[i];
         if (!e->active)
@@ -550,7 +539,6 @@
 int
 reliable_get_num_output_sequenced_available(struct reliable *rel)
 {
-    struct gc_arena gc = gc_new();
     packet_id_type min_id = 0;
     bool min_id_defined = false;
 
@@ -573,7 +561,6 @@
     {
         ret -= subtract_pid(rel->packet_id, min_id);
     }
-    gc_free(&gc);
     return ret;
 }
 
@@ -581,14 +568,12 @@
 struct buffer *
 reliable_get_buf_output_sequenced(struct reliable *rel)
 {
-    struct gc_arena gc = gc_new();
-    int i;
     packet_id_type min_id = 0;
     bool min_id_defined = false;
     struct buffer *ret = NULL;
 
     /* find minimum active packet_id */
-    for (i = 0; i < rel->size; ++i)
+    for (int i = 0; i < rel->size; ++i)
     {
         const struct reliable_entry *e = &rel->array[i];
         if (e->active)
@@ -607,9 +592,8 @@
     }
     else
     {
-        dmsg(D_REL_LOW, "ACK output sequence broken: %s", reliable_print_ids(rel, &gc));
+        dmsg(D_REL_LOW, "ACK output sequence broken: %s", reliable_print_ids(rel));
     }
-    gc_free(&gc);
     return ret;
 }
 
@@ -617,8 +601,7 @@
 struct reliable_entry *
 reliable_get_entry_sequenced(struct reliable *rel)
 {
-    int i;
-    for (i = 0; i < rel->size; ++i)
+    for (int i = 0; i < rel->size; ++i)
     {
         struct reliable_entry *e = &rel->array[i];
         if (e->active && e->packet_id == rel->packet_id)
@@ -633,10 +616,8 @@
 bool
 reliable_can_send(const struct reliable *rel)
 {
-    struct gc_arena gc = gc_new();
-    int i;
     int n_active = 0, n_current = 0;
-    for (i = 0; i < rel->size; ++i)
+    for (int i = 0; i < rel->size; ++i)
     {
         const struct reliable_entry *e = &rel->array[i];
         if (e->active)
@@ -652,9 +633,8 @@
     dmsg(D_REL_DEBUG, "ACK reliable_can_send active=%d current=%d : %s",
          n_active,
          n_current,
-         reliable_print_ids(rel, &gc));
+         reliable_print_ids(rel));
 
-    gc_free(&gc);
     return n_current > 0 && !rel->hold;
 }
 
@@ -662,11 +642,10 @@
 struct buffer *
 reliable_send(struct reliable *rel, int *opcode)
 {
-    int i;
     struct reliable_entry *best = NULL;
     const time_t local_now = now;
 
-    for (i = 0; i < rel->size; ++i)
+    for (int i = 0; i < rel->size; ++i)
     {
         struct reliable_entry *e = &rel->array[i];
 
@@ -701,10 +680,9 @@
 void
 reliable_schedule_now(struct reliable *rel)
 {
-    int i;
     dmsg(D_REL_DEBUG, "ACK reliable_schedule_now");
     rel->hold = false;
-    for (i = 0; i < rel->size; ++i)
+    for (int i = 0; i < rel->size; ++i)
     {
         struct reliable_entry *e = &rel->array[i];
         if (e->active)
@@ -720,12 +698,10 @@
 interval_t
 reliable_send_timeout(const struct reliable *rel)
 {
-    struct gc_arena gc = gc_new();
     interval_t ret = BIG_TIMEOUT;
-    int i;
     const time_t local_now = now;
 
-    for (i = 0; i < rel->size; ++i)
+    for (int i = 0; i < rel->size; ++i)
     {
         const struct reliable_entry *e = &rel->array[i];
         if (e->active)
@@ -744,9 +720,8 @@
 
     dmsg(D_REL_DEBUG, "ACK reliable_send_timeout %d %s",
          (int) ret,
-         reliable_print_ids(rel, &gc));
+         reliable_print_ids(rel));
 
-    gc_free(&gc);
     return ret;
 }
 
@@ -758,8 +733,7 @@
 reliable_mark_active_incoming(struct reliable *rel, struct buffer *buf,
                               packet_id_type pid, int opcode)
 {
-    int i;
-    for (i = 0; i < rel->size; ++i)
+    for (int i = 0; i < rel->size; ++i)
     {
         struct reliable_entry *e = &rel->array[i];
         if (buf == &e->buf)
@@ -790,8 +764,7 @@
 void
 reliable_mark_active_outgoing(struct reliable *rel, struct buffer *buf, int opcode)
 {
-    int i;
-    for (i = 0; i < rel->size; ++i)
+    for (int i = 0; i < rel->size; ++i)
     {
         struct reliable_entry *e = &rel->array[i];
         if (buf == &e->buf)
@@ -817,8 +790,7 @@
 void
 reliable_mark_deleted(struct reliable *rel, struct buffer *buf)
 {
-    int i;
-    for (i = 0; i < rel->size; ++i)
+    for (int i = 0; i < rel->size; ++i)
     {
         struct reliable_entry *e = &rel->array[i];
         if (buf == &e->buf)
@@ -836,10 +808,8 @@
 void
 reliable_ack_debug_print(const struct reliable_ack *ack, char *desc)
 {
-    int i;
-
     printf("********* struct reliable_ack %s\n", desc);
-    for (i = 0; i < ack->len; ++i)
+    for (int i = 0; i < ack->len; ++i)
     {
         printf("  %d: " packet_id_format "\n", i, (packet_id_print_type) ack->packet_id[i]);
     }
@@ -848,14 +818,13 @@
 void
 reliable_debug_print(const struct reliable *rel, char *desc)
 {
-    int i;
     update_time();
 
     printf("********* struct reliable %s\n", desc);
     printf("  initial_timeout=%d\n", (int)rel->initial_timeout);
     printf("  packet_id=" packet_id_format "\n", rel->packet_id);
     printf("  now=%" PRIi64 "\n", (int64_t)now);
-    for (i = 0; i < rel->size; ++i)
+    for (int i = 0; i < rel->size; ++i)
     {
         const struct reliable_entry *e = &rel->array[i];
         if (e->active)

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Gerrit-Project: openvpn
Gerrit-Branch: master
Gerrit-Change-Id: I8cefa9a406fe90bb3cbe481304782c639691a3a0
Gerrit-Change-Number: 1083
Gerrit-PatchSet: 1
Gerrit-Owner: flichtenheld <fr...@li...>
Gerrit-Reviewer: plaisthos <arn...@rf...>
Gerrit-CC: openvpn-devel <ope...@li...>
Gerrit-Attention: plaisthos <arn...@rf...>
Gerrit-MessageType: newchange


[Openvpn-devel] [M] Change in openvpn[master]: reliable: Move gc_arena inside reliable_print_ids

Robust and flexible VPN network tunnelling

[Openvpn-devel] [M] Change in openvpn[master]: reliable: Move gc_arena inside reliable_print_ids