add version when marshaling

Signed-off-by: Mattias Andrée <maandree@operamail.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/src/libmdsserver/fd-table.c b/src/libmdsserver/fd-table.c
index 78876ce..6514289 100644
--- a/src/libmdsserver/fd-table.c
+++ b/src/libmdsserver/fd-table.c
@@ -253,7 +253,7 @@ void fd_table_clear(fd_table_t* restrict this)
 size_t fd_table_marshal_size(const fd_table_t* restrict this)
 {
   size_t bitcap = (this->capacity + 63) / 64;
-  return (this->capacity + 2) * sizeof(size_t) + bitcap * sizeof(uint64_t);
+  return (this->capacity + 2) * sizeof(size_t) + bitcap * sizeof(uint64_t) + sizeof(int);
 }
 
 
@@ -267,6 +267,9 @@ void fd_table_marshal(const fd_table_t* restrict this, char* restrict data)
 {
   size_t bitcap = (this->capacity + 63) / 64;
   
+  ((int*)data)[0] = FD_TABLE_T_VERSION;
+  data += sizeof(int) / sizeof(char);
+  
   ((size_t*)data)[0] = this->capacity;
   ((size_t*)data)[1] = this->size;
   data += 2 * sizeof(size_t) / sizeof(char);
@@ -291,6 +294,9 @@ int fd_table_unmarshal(fd_table_t* restrict this, char* restrict data, remap_fun
 {
   size_t bitcap;
   
+  /* ((int*)data)[0] == FD_TABLE_T_VERSION */
+  data += sizeof(int) / sizeof(char);
+  
   this->capacity = ((size_t*)data)[0];
   this->size = ((size_t*)data)[1];
   data += 2 * sizeof(size_t) / sizeof(char);