<p>Sean Bright has uploaded this change for <strong>review</strong>.</p><p><a href="https://gerrit.asterisk.org/c/asterisk/+/11150">View Change</a></p><pre style="font-family: monospace,monospace; white-space: pre-wrap;">vector: Add AST_VECTOR_COMPACT() to reclaim wasted space<br><br>This might be useful in situations where you are loading an undetermined number<br>of items into a vector and don't want to keep (potentially) 2x the necessary<br>memory around indefinitely.<br><br>Change-Id: I9711daa0fe01783fc6f04c5710eba84f2676d7b9<br>---<br>M include/asterisk/vector.h<br>1 file changed, 32 insertions(+), 0 deletions(-)<br><br></pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;">git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/50/11150/1</pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;"><span>diff --git a/include/asterisk/vector.h b/include/asterisk/vector.h</span><br><span>index 2ee5e29..9c47c19 100644</span><br><span>--- a/include/asterisk/vector.h</span><br><span>+++ b/include/asterisk/vector.h</span><br><span>@@ -590,6 +590,38 @@</span><br><span> })</span><br><span> </span><br><span> /*!</span><br><span style="color: hsl(120, 100%, 40%);">+ * \brief Resize a vector so that its capacity is the same as its size.</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param vec Vector to compact.</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * \return 0 on success.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \return Non-zero on failure.</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+#define AST_VECTOR_COMPACT(vec) ({ \</span><br><span style="color: hsl(120, 100%, 40%);">+     int res = 0;                                                            \</span><br><span style="color: hsl(120, 100%, 40%);">+     do {                                                                                                            \</span><br><span style="color: hsl(120, 100%, 40%);">+             if ((vec)->max > (vec)->current) {                                             \</span><br><span style="color: hsl(120, 100%, 40%);">+                     size_t new_max = (vec)->current;                             \</span><br><span style="color: hsl(120, 100%, 40%);">+                     typeof((vec)->elems) new_elems = ast_calloc(1,               \</span><br><span style="color: hsl(120, 100%, 40%);">+                             new_max * sizeof(*new_elems));                                  \</span><br><span style="color: hsl(120, 100%, 40%);">+                     if (new_elems) {                                                                        \</span><br><span style="color: hsl(120, 100%, 40%);">+                             if ((vec)->elems) {                                                          \</span><br><span style="color: hsl(120, 100%, 40%);">+                                     memcpy(new_elems, (vec)->elems,                              \</span><br><span style="color: hsl(120, 100%, 40%);">+                                             (vec)->current * sizeof(*new_elems));        \</span><br><span style="color: hsl(120, 100%, 40%);">+                                     ast_free((vec)->elems);                                              \</span><br><span style="color: hsl(120, 100%, 40%);">+                             }                                                                                               \</span><br><span style="color: hsl(120, 100%, 40%);">+                             (vec)->elems = new_elems;                                            \</span><br><span style="color: hsl(120, 100%, 40%);">+                             (vec)->max = new_max;                                                        \</span><br><span style="color: hsl(120, 100%, 40%);">+                     } else {                                                                                        \</span><br><span style="color: hsl(120, 100%, 40%);">+                             res = -1;                                                                               \</span><br><span style="color: hsl(120, 100%, 40%);">+                             break;                                                                                  \</span><br><span style="color: hsl(120, 100%, 40%);">+                     }                                                                                                       \</span><br><span style="color: hsl(120, 100%, 40%);">+             }                                                                                                               \</span><br><span style="color: hsl(120, 100%, 40%);">+     } while(0);                                                                                                     \</span><br><span style="color: hsl(120, 100%, 40%);">+     res;                                                                                                            \</span><br><span style="color: hsl(120, 100%, 40%);">+})</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/*!</span><br><span>  * \brief Get an address of element in a vector.</span><br><span>  *</span><br><span>  * \param vec Vector to query.</span><br><span></span><br></pre><p>To view, visit <a href="https://gerrit.asterisk.org/c/asterisk/+/11150">change 11150</a>. To unsubscribe, or for help writing mail filters, visit <a href="https://gerrit.asterisk.org/settings">settings</a>.</p><div itemscope itemtype="http://schema.org/EmailMessage"><div itemscope itemprop="action" itemtype="http://schema.org/ViewAction"><link itemprop="url" href="https://gerrit.asterisk.org/c/asterisk/+/11150"/><meta itemprop="name" content="View Change"/></div></div>

<div style="display:none"> Gerrit-Project: asterisk </div>
<div style="display:none"> Gerrit-Branch: 13 </div>
<div style="display:none"> Gerrit-Change-Id: I9711daa0fe01783fc6f04c5710eba84f2676d7b9 </div>
<div style="display:none"> Gerrit-Change-Number: 11150 </div>
<div style="display:none"> Gerrit-PatchSet: 1 </div>
<div style="display:none"> Gerrit-Owner: Sean Bright <sean.bright@gmail.com> </div>
<div style="display:none"> Gerrit-MessageType: newchange </div>