Merge pull request rhashimoto#225 from davidisaaclee/commit-hook

Expose commit hook

Author: rhashimoto

dist/wa-sqlite-async.mjs

@@ -1,6 +1,6 @@
 // Method names for these signatures must be in src/asyncify_imports.json.
 const SIGNATURES = [
-  'ipp', // xProgress
+  'ipp', // xProgress, xCommitHook
   'ippp', // xClose, xSectorSize, xDeviceCharacteristics
   'vppp', // xShmBarrier, xFinal
   'ipppj', // xTruncate

dist/wa-sqlite-async.wasm

@@ -10,6 +10,11 @@
     SIGNATURE##_async(KEY, __VA_ARGS__) : \
     SIGNATURE(KEY, __VA_ARGS__))
 
+static int libhook_xCommitHook(void* pApp) {
+  const int asyncFlags = pApp ? *(int *)pApp : 0;
+  return CALL_JS(ipp, pApp, pApp);
+}
+
 static void libhook_xUpdateHook(
   void* pApp,
   int iUpdateType,
@@ -22,6 +27,10 @@ static void libhook_xUpdateHook(
   CALL_JS(vppippii, pApp, pApp, iUpdateType, dbName, tblName, lo32, hi32);
 }
 
+void EMSCRIPTEN_KEEPALIVE libhook_commit_hook(sqlite3* db, int xCommitHook, void* pApp) {
+  sqlite3_commit_hook(db, xCommitHook ? &libhook_xCommitHook : NULL, pApp);
+}
+
 void EMSCRIPTEN_KEEPALIVE libhook_update_hook(sqlite3* db, int xUpdateHook, void* pApp) {
   sqlite3_update_hook(db, xUpdateHook ? &libhook_xUpdateHook : NULL, pApp);
 }

dist/wa-sqlite-jspi.mjs

@@ -26,4 +26,31 @@
       });
     }
   };
-})();
+})();
+
+(function() {
+  const AsyncFunction = Object.getPrototypeOf(async function(){}).constructor;
+  let pAsyncFlags = 0;
+
+  Module['commit_hook'] = function(db, xCommitHook) {
+    if (pAsyncFlags) {
+      Module['deleteCallback'](pAsyncFlags);
+      Module['_sqlite3_free'](pAsyncFlags);
+      pAsyncFlags = 0;
+    }
+
+    pAsyncFlags = Module['_sqlite3_malloc'](4);
+    setValue(pAsyncFlags, xCommitHook instanceof AsyncFunction ? 1 : 0, 'i32');
+
+    ccall(
+      'libhook_commit_hook',
+      'void',
+      ['number', 'number', 'number'],
+      [db, xCommitHook ? 1 : 0, pAsyncFlags]);
+    if (xCommitHook) {
+      Module['setCallback'](pAsyncFlags, (_) => {
+        return xCommitHook();
+      });
+    }
+  };
+})();

dist/wa-sqlite-jspi.wasm

@@ -735,6 +735,11 @@ export function Factory(Module) {
     };
   })();
 
+  sqlite3.commit_hook = function(db, xCommitHook) {
+    verifyDatabase(db);
+    Module.commit_hook(db, xCommitHook);
+  };
+
   sqlite3.update_hook = function(db, xUpdateHook) {
     verifyDatabase(db);