diff -r 31307efd7e78 -r 8307d28329ae render_thread.c
--- a/render_thread.c	Thu Jun 26 01:32:56 2008 +0300
+++ b/render_thread.c	Thu Jun 26 02:57:20 2008 +0300
@@ -18,18 +18,30 @@
     // measure how long it takes
     double duration;
     
-    // render it...
-    if (render_local(&ctx->render_info, &duration))
-        goto error;
+    struct render_local local_ctx;
+    
+    // initialize it...
+    if (!(ctx->err = render_local_init(&local_ctx, &ctx->render_info))) {
+        // setup the cancel exit handlers
+        pthread_cleanup_push( (void (*)(void *)) render_local_deinit, &local_ctx);
 
-#ifdef DEBUG_INFO
-    u_int32_t img_w, img_h;
+        // render it...
+        ctx->err = render_local_run(&local_ctx, &duration);
+        
+        if (!ctx->err) {
+#if INFO_ENABLED
+            u_int32_t img_w, img_h;
 
-    render_get_size(&ctx->render_info, &img_w, &img_h);
+            render_get_size(&ctx->render_info, &img_w, &img_h);
 
-    // report the duration
-    INFO("rendered [%ux%u] in %f seconds", img_w, img_h, duration);
+            // report the duration
+            INFO("rendered [%ux%u] in %f seconds", img_w, img_h, duration);
 #endif
+        }
+        
+        // cleanup
+        pthread_cleanup_pop(1);
+    }
 
     // notify completion, writeall()
     ssize_t ret;
@@ -52,6 +64,7 @@
     return NULL;
 
 error:
+    // if notifying of completion failed...
     return ctx;
 }
 
@@ -59,6 +72,14 @@
     struct render_thread *ctx = arg;
     void *thread_return;
 
+    // join the thread and check the return value
+    if (pthread_join(ctx->thread_id, &thread_return))
+        PWARNING("pthread_join");
+    else if (thread_return == PTHREAD_CANCELED)
+        PWARNING("PTHREAD_CANCELED");
+    else if (thread_return != NULL)
+        PWARNING("thread_return != NULL");
+
     // make a lazy effort to read the contents of the pipe
     struct render_thread *ctx2;
     char *buf = (void *) &ctx2;
@@ -82,19 +103,11 @@
     if (close(ctx->notify_fd))
         PWARNING("close(pipe-write)");
 
-    // join the thread and check the return value
-    if (pthread_join(ctx->thread_id, &thread_return))
-        PWARNING("pthread_join");
-    else if (thread_return == PTHREAD_CANCELED)
-        PWARNING("PTHREAD_CANCELED");
-    else if (thread_return != NULL)
-        PWARNING("thread_return != NULL");
-
     // mark it as done
     ctx->is_active = 0;
 
     // call our callback
-    ctx->cb_func(ctx, ctx->cb_arg);
+    ctx->cb_func(ctx, ctx->err, ctx->cb_arg);
 }
 
 int render_thread_init (struct render_thread *ctx, struct render *render_info, render_thread_done_cb cb_func, void *cb_arg) {