Merge pull request #58 from spacejam/tyler_libc_0.2.10

Bump libc crate to 0.2.10, audit u64 and usize usage in ffi

Cargo.toml

@@ -24,4 +24,4 @@ name = "test"
 path = "test/test.rs"
 
 [dependencies]
-libc = "0.1.8"
+libc = "0.2.10"

src/ffi.rs

@@ -162,17 +162,17 @@ extern "C" {
     pub fn rocksdb_options_set_level0_stop_writes_trigger(options: DBOptions,
                                                           no: c_int);
     pub fn rocksdb_options_set_write_buffer_size(options: DBOptions,
-                                                 bytes: u64);
+                                                 bytes: usize);
     pub fn rocksdb_options_set_target_file_size_base(options: DBOptions,
                                                      bytes: u64);
     pub fn rocksdb_options_set_target_file_size_multiplier(options: DBOptions,
                                                            mul: c_int);
     pub fn rocksdb_options_set_max_log_file_size(options: DBOptions,
-                                                 bytes: u64);
+                                                 bytes: usize);
     pub fn rocksdb_options_set_max_manifest_file_size(options: DBOptions,
-                                                      bytes: u64);
+                                                      bytes: usize);
     pub fn rocksdb_options_set_hash_skip_list_rep(options: DBOptions,
-                                                  bytes: u64,
+                                                  bytes: usize,
                                                   a1: i32,
                                                   a2: i32);
     pub fn rocksdb_options_set_compaction_style(options: DBOptions,

src/rocksdb_options.rs

@@ -69,7 +69,7 @@ impl BlockBasedOptions {
         BlockBasedOptions { inner: block_opts }
     }
 
-    pub fn set_block_size(&mut self, size: u64) {
+    pub fn set_block_size(&mut self, size: usize) {
         unsafe {
             rocksdb_ffi::rocksdb_block_based_options_set_block_size(self.inner,
                                                                     size);