Function _QueryCtx_GetCreateCtx

src/query_ctx.c:21–37

retrieve or instantiate new QueryCtx

// retrieve or instantiate new QueryCtx
static inline QueryCtx *_QueryCtx_GetCreateCtx(void) {
	QueryCtx *ctx = pthread_getspecific(_tlsQueryCtxKey);

	if(ctx == NULL) {
		// set a new thread-local QueryCtx if one has not been created
		ctx = rm_calloc(1, sizeof(QueryCtx));

		// created lazily only when needed
		ctx->undo_log       = NULL;
		ctx->effects_buffer = NULL;
		ctx->stage          = QueryStage_WAITING;  // initial query stage

		pthread_setspecific(_tlsQueryCtxKey, ctx);
	}

	return ctx;
}

// retrieve QueryCtx, return NULL if one does not exist
static inline QueryCtx *_QueryCtx_GetCtx(void) {