Merge in fixes for UDP

[m6w6/libmemcached] / libmemcached / do.cc

diff --git a/libmemcached/do.cc b/libmemcached/do.cc
index 5e9e65f280e20b314f89e8727b9a13b46829b276..c3cfab9389b4339dfc8c0e5d49aeb3210223d550 100644 (file)
--- a/libmemcached/do.cc
+++ b/libmemcached/do.cc
@@ -14,12 +14,10 @@
 memcached_return_t memcached_do(memcached_server_write_instance_st ptr, const void *command,
                                 size_t command_length, bool with_flush)
 {
-  memcached_return_t rc;
-  ssize_t sent_length;
-
-  WATCHPOINT_ASSERT(command_length);
-  WATCHPOINT_ASSERT(command);
+  assert_msg(command_length, "Programming error, somehow a command had a length of zero");
+  assert_msg(command, "Programming error, somehow a command was NULL");
 
+  memcached_return_t rc;
   if (memcached_failed(rc= memcached_connect(ptr)))
   {
     WATCHPOINT_ASSERT(rc == memcached_last_error(ptr->root));
@@ -32,14 +30,14 @@ memcached_return_t memcached_do(memcached_server_write_instance_st ptr, const vo
   ** before they start writing, if there is any data in buffer, clear it out,
   ** otherwise we might get a partial write.
   **/
-  if (ptr->type == MEMCACHED_CONNECTION_UDP && with_flush && ptr->write_buffer_offset > UDP_DATAGRAM_HEADER_LENGTH)
+  if (memcached_is_udp(ptr->root) and with_flush and ptr->write_buffer_offset > UDP_DATAGRAM_HEADER_LENGTH)
   {
     memcached_io_write(ptr, NULL, 0, true);
   }
 
-  sent_length= memcached_io_write(ptr, command, command_length, with_flush);
+  ssize_t sent_length= memcached_io_write(ptr, command, command_length, with_flush);
 
-  if (sent_length == -1 || (size_t)sent_length != command_length)
+  if (sent_length == -1 or size_t(sent_length) != command_length)
   {
     rc= MEMCACHED_WRITE_FAILURE;
   }
@@ -56,7 +54,6 @@ memcached_return_t memcached_vdo(memcached_server_write_instance_st ptr,
                                  bool with_flush)
 {
   memcached_return_t rc;
-  ssize_t sent_length;
 
   WATCHPOINT_ASSERT(count);
   WATCHPOINT_ASSERT(vector);
@@ -73,12 +70,16 @@ memcached_return_t memcached_vdo(memcached_server_write_instance_st ptr,
   ** before they start writing, if there is any data in buffer, clear it out,
   ** otherwise we might get a partial write.
   **/
-  if (ptr->type == MEMCACHED_CONNECTION_UDP && with_flush && ptr->write_buffer_offset > UDP_DATAGRAM_HEADER_LENGTH)
+  if (memcached_is_udp(ptr->root) and with_flush and ptr->write_buffer_offset > UDP_DATAGRAM_HEADER_LENGTH)
   {
-    memcached_io_write(ptr, NULL, 0, true);
+    if (memcached_io_write(ptr, NULL, 0, true) == -1)
+    {
+      memcached_io_reset(ptr);
+      return memcached_set_error(*ptr, MEMCACHED_WRITE_FAILURE, MEMCACHED_AT);
+    }
   }
 
-  sent_length= memcached_io_writev(ptr, vector, count, with_flush);
+  ssize_t sent_length= memcached_io_writev(ptr, vector, count, with_flush);
 
   size_t command_length= 0;
   for (uint32_t x= 0; x < count; ++x, vector++)