Merge, better error messages

[m6w6/libmemcached] / libmemcached / string.cc

diff --git a/libmemcached/string.cc b/libmemcached/string.cc
index 0e17484055c5e6356073b4458a07d1ce426f4cf1..c7a47827decfae6ba6e0392c762864cc3ac86b55 100644 (file)
--- a/libmemcached/string.cc
+++ b/libmemcached/string.cc
@@ -37,29 +37,29 @@
 
 
 #include <libmemcached/common.h>
-#include <cassert>
 
 inline static memcached_return_t _string_check(memcached_string_st *string, size_t need)
 {
   if (need && need > (size_t)(string->current_size - (size_t)(string->end - string->string)))
   {
     size_t current_offset= (size_t) (string->end - string->string);
-    char *new_value;
-    size_t adjust;
-    size_t new_size;
 
     /* This is the block multiplier. To keep it larger and surive division errors we must round it up */
-    adjust= (need - (size_t)(string->current_size - (size_t)(string->end - string->string))) / MEMCACHED_BLOCK_SIZE;
+    size_t adjust= (need - (size_t)(string->current_size - (size_t)(string->end - string->string))) / MEMCACHED_BLOCK_SIZE;
     adjust++;
 
-    new_size= sizeof(char) * (size_t)((adjust * MEMCACHED_BLOCK_SIZE) + string->current_size);
+    size_t new_size= sizeof(char) * (size_t)((adjust * MEMCACHED_BLOCK_SIZE) + string->current_size);
     /* Test for overflow */
     if (new_size < need)
-      return memcached_set_error(*string->root, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT);
+    {
+      char error_message[1024];
+      int error_message_length= snprintf(error_message, sizeof(error_message),"Needed %ld, got %ld", (long)need, (long)new_size);
+      return memcached_set_error(*string->root, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT, error_message, error_message_length);
+    }
 
-    new_value= static_cast<char *>(libmemcached_realloc(string->root, string->string, new_size));
+    char *new_value= libmemcached_xrealloc(string->root, string->string, new_size, char);
 
-    if (not new_value)
+    if (new_value == NULL)
     {
       return memcached_set_error(*string->root, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT);
     }
@@ -92,7 +92,7 @@ memcached_string_st *memcached_string_create(memcached_st *memc, memcached_strin
   }
   else
   {
-    self= static_cast<memcached_string_st *>(libmemcached_malloc(memc, sizeof(memcached_string_st)));
+    self= libmemcached_xmalloc(memc, memcached_string_st);
 
     if (self == NULL)
     {
@@ -192,7 +192,9 @@ memcached_return_t memcached_string_reset(memcached_string_st *string)
 void memcached_string_free(memcached_string_st *ptr)
 {
   if (not ptr)
+  {
     return;
+  }
 
   if (ptr->string)
   {
@@ -216,7 +218,7 @@ memcached_return_t memcached_string_check(memcached_string_st *string, size_t ne
 
 size_t memcached_string_length(const memcached_string_st *self)
 {
-  return (size_t)(self->end - self->string);
+  return size_t(self->end -self->string);
 }
 
 size_t memcached_string_size(const memcached_string_st *self)
@@ -231,7 +233,7 @@ const char *memcached_string_value(const memcached_string_st *self)
 
 char *memcached_string_take_value(memcached_string_st *self)
 {
-  assert(self);
+  assert_msg(self, "Invalid memcached_string_st");
   // If we fail at adding the null, we copy and move on
   if (memcached_success(memcached_string_append_null(self)))
   {