Description:
------------
When running a loop w/ the consume method, the amqp extension 
leaks memory.

Reproduce code:
---------------
while (true) {
  $msgs = $q->consume(array('min'=>1, 'max'=>1));
}

Expected result:
----------------
The size of the php process should hover around some steady 
value.

Actual result:
--------------
The php process continuously grows and grows. When running 
with the suhosin extension, the php process exits with 
return code 1 and leaves
"ALERT - canary mismatch on efree() - heap overflow detected 
at 0x8d3d444"
in syslog.

the following patch fixes these issues for me:

--- amqp_queue.c.1      2011-04-14 15:22:39.814585000 -0400
+++ amqp_queue.c        2011-04-14 15:21:01.170504000 -0400
@@ -582,7 +582,7 @@
        array_init(return_value);
        char *buf = NULL;
 
-       buf = (char*) malloc(FRAME_MAX);
+       buf = (char*) emalloc(FRAME_MAX);
        if (!buf) {
                
zend_throw_exception(zend_exception_get_default(TSRMLS_C), 
"Out of memory (malloc)" ,0 TSRMLS_CC);       
        }
@@ -730,9 +730,9 @@
                        int count_buf = body_target / 
FRAME_MAX +1;
                        int resize = count_buf * FRAME_MAX;
                        buf_max = resize;
-                       pbuf = realloc(buf, resize);
+                       pbuf = erealloc(buf, resize);
                        if (!pbuf) {
-                               free(buf);
+                               efree(buf);
                                
zend_throw_exception(zend_exception_get_default(TSRMLS_C), 
"The memory is out (realloc)", 0 TSRMLS_CC);
                        }
                        buf = pbuf;