Fix crash in RediSearch

JohnSully · JohnSully · commit 6b6e6f6c1ef4 · 2019-07-29T15:08:57.000-04:00
diff --git a/src/module.cpp b/src/module.cpp
@@ -3930,6 +3930,8 @@ void RM_FreeThreadSafeContext(RedisModuleCtx *ctx) {
 void RM_ThreadSafeContextLock(RedisModuleCtx *ctx) {
     UNUSED(ctx);
     moduleAcquireGIL(FALSE /*fServerThread*/);
+    if (serverTL == nullptr)
+        serverTL = &g_pserver->rgthreadvar[IDX_EVENT_LOOP_MAIN];    // arbitrary module threads get the main thread context
 }
 
 /* Release the server lock after a thread safe API call was executed. */

Original file line number	Diff line number	Diff line change
`@@ -3930,6 +3930,8 @@ void RM_FreeThreadSafeContext(RedisModuleCtx *ctx) {`
`3930`	`3930`	`void RM_ThreadSafeContextLock(RedisModuleCtx *ctx) {`
`3931`	`3931`	`UNUSED(ctx);`
`3932`	`3932`	`moduleAcquireGIL(FALSE /fServerThread/);`
	`3933`	`+ if (serverTL == nullptr)`
	`3934`	`+ serverTL = &g_pserver->rgthreadvar[IDX_EVENT_LOOP_MAIN]; // arbitrary module threads get the main thread context`
`3933`	`3935`	`}`
`3934`	`3936`
`3935`	`3937`	`/* Release the server lock after a thread safe API call was executed. */`