# HG changeset patch
# User Olaf Wintermann <olaf.wintermann@gmail.com>
# Date 1768070650 -3600
# Node ID f3e2811ecf3a490e9bfd2dbd67c46d4d6bed38e5
# Parent  db47e814b4c5bcca799ef22e5457485e4c1cf0e1
add function for buffering mainthread calls

diff -r db47e814b4c5 -r f3e2811ecf3a ui/cocoa/toolkit.m
--- a/ui/cocoa/toolkit.m	Thu Jan 08 18:17:06 2026 +0100
+++ b/ui/cocoa/toolkit.m	Sat Jan 10 19:44:10 2026 +0100
@@ -174,6 +174,11 @@
 @end
 
 void ui_call_mainthread(ui_threadfunc tf, void* td) {
+    if(uic_mainthread_calls_is_buffered()) {
+        uic_add_buffered_mainthread_call(tf, td);
+        return;
+    }
+    
     UiAppCallback *cb = [[UiAppCallback alloc]initWithCallback:tf userdata:td];
     [cb callMainThread];
 }
diff -r db47e814b4c5 -r f3e2811ecf3a ui/common/threadpool.c
--- a/ui/common/threadpool.c	Thu Jan 08 18:17:06 2026 +0100
+++ b/ui/common/threadpool.c	Sat Jan 10 19:44:10 2026 +0100
@@ -30,6 +30,7 @@
 
 #include "threadpool.h"
 #include "context.h"
+#include <cx/linked_list.h>
 
 #include <pthread.h>
 #include <stdio.h>
@@ -38,6 +39,56 @@
 
 static threadpool_job kill_job;
 
+
+
+static pthread_mutex_t mc_buffer_mutex;
+static CxList *mainthread_call_buffer;
+static volatile int mainthread_call_buffered = 0;
+
+typedef struct UiMainCall {
+    ui_threadfunc func;
+    void *data;
+} UiMainCall;
+
+void uic_init_threads(void) {
+    pthread_mutex_init(&mc_buffer_mutex, NULL);
+    mainthread_call_buffer = cxLinkedListCreate(NULL, sizeof(UiMainCall));
+}
+
+int uic_mainthread_calls_is_buffered(void) {
+    return mainthread_call_buffered;
+}
+
+void uic_add_buffered_mainthread_call(ui_threadfunc func, void *data) {
+    pthread_mutex_lock(&mc_buffer_mutex);
+    UiMainCall call;
+    call.func = func;
+    call.data = data;
+    cxListAdd(mainthread_call_buffer, &call);
+    pthread_mutex_unlock(&mc_buffer_mutex);
+}
+
+
+void ui_buffer_mainthread_calls(UiBool enable_buffering) {
+    mainthread_call_buffered = enable_buffering;
+    if(!enable_buffering) {
+        ui_exec_buffered_mainthread_calls();
+    }
+}
+void ui_exec_buffered_mainthread_calls(void) {
+    pthread_mutex_lock(&mc_buffer_mutex);
+    CxIterator i = cxListIterator(mainthread_call_buffer);
+    cx_foreach(UiMainCall *, call, i) {
+        if(call->func) {
+            call->func(call->data);
+        }
+    }
+    cxListClear(mainthread_call_buffer);
+    pthread_mutex_unlock(&mc_buffer_mutex);
+}
+
+
+
 UiThreadpool* threadpool_new(int min, int max) {
     UiThreadpool *pool = malloc(sizeof(UiThreadpool));
     pool->queue = ui_queue_create();
diff -r db47e814b4c5 -r f3e2811ecf3a ui/common/threadpool.h
--- a/ui/common/threadpool.h	Thu Jan 08 18:17:06 2026 +0100
+++ b/ui/common/threadpool.h	Sat Jan 10 19:44:10 2026 +0100
@@ -39,6 +39,10 @@
 extern "C" {
 #endif
     
+void uic_init_threads(void);
+int uic_mainthread_calls_is_buffered(void);
+void uic_add_buffered_mainthread_call(ui_threadfunc func, void *data);
+    
 typedef struct UiQueueElm UiQueueElm;
 typedef struct UiQueue    UiQueue;
     
diff -r db47e814b4c5 -r f3e2811ecf3a ui/gtk/toolkit.c
--- a/ui/gtk/toolkit.c	Thu Jan 08 18:17:06 2026 +0100
+++ b/ui/gtk/toolkit.c	Sat Jan 10 19:44:10 2026 +0100
@@ -76,6 +76,7 @@
     uic_toolbar_init();
     ui_image_init();
     uic_load_app_properties();
+    uic_init_threads();
     
 #if GTK_MAJOR_VERSION >= 4
     scale_factor = 1; // TODO
@@ -203,6 +204,11 @@
 }
 
 void ui_call_mainthread(ui_threadfunc tf, void* td) {
+    if(uic_mainthread_calls_is_buffered()) {
+        uic_add_buffered_mainthread_call(tf, td);
+        return;
+    }
+    
     UiJob *job = malloc(sizeof(UiJob));
     job->job_func = tf;
     job->job_data = td;
diff -r db47e814b4c5 -r f3e2811ecf3a ui/motif/toolkit.c
--- a/ui/motif/toolkit.c	Thu Jan 08 18:17:06 2026 +0100
+++ b/ui/motif/toolkit.c	Sat Jan 10 19:44:10 2026 +0100
@@ -221,6 +221,11 @@
 }
 
 void ui_call_mainthread(ui_threadfunc tf, void* td) {
+    if(uic_mainthread_calls_is_buffered()) {
+        uic_add_buffered_mainthread_call(tf, td);
+        return;
+    }
+    
     UiJob *job = malloc(sizeof(UiJob));
     memset(job, 0, sizeof(UiJob));
     job->job_func = tf;
diff -r db47e814b4c5 -r f3e2811ecf3a ui/ui/toolkit.h
--- a/ui/ui/toolkit.h	Thu Jan 08 18:17:06 2026 +0100
+++ b/ui/ui/toolkit.h	Sat Jan 10 19:44:10 2026 +0100
@@ -556,6 +556,10 @@
 
 UIEXPORT void ui_job(UiObject *obj, ui_threadfunc tf, void *td, ui_callback f, void *fd);
 UIEXPORT void ui_call_mainthread(ui_threadfunc tf, void* td);
+
+UIEXPORT void ui_buffer_mainthread_calls(UiBool enable_buffering);
+UIEXPORT void ui_exec_buffered_mainthread_calls(void);
+
 UIEXPORT UiThreadpool* ui_threadpool_create(int nthreads);
 UIEXPORT void ui_threadpool_destroy(UiThreadpool* pool);
 UIEXPORT void ui_threadpool_job(UiThreadpool* pool, UiObject* obj, ui_threadfunc tf, void* td, ui_callback f, void* fd);