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tui: "backpressure": Drop messages to avoid flooding.

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Closes #1234

multiqueue:
- Implement multiqueue_size()
- Rename MultiQueueItem.parent to MultiQueueItem.parent_item, to avoid confusion
  with MultiQueue.parent.
This commit is contained in:
Justin M. Keyes
2016-10-03 10:46:11 +02:00
parent 5082af415f
commit 043f85210a
11 changed files with 130 additions and 42 deletions
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33
src/nvim/ui_bridge.c
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@@ -1,11 +1,12 @@
// UI wrapper that sends UI requests to the UI thread.
// Used by the built-in TUI and external libnvim-based UIs.
// UI wrapper that sends requests to the UI thread.
// Used by the built-in TUI and libnvim-based UIs.
#include <assert.h>
#include <stdbool.h>
#include <stdio.h>
#include <limits.h>
#include "nvim/log.h"
#include "nvim/main.h"
#include "nvim/vim.h"
#include "nvim/ui.h"
@@ -19,10 +20,30 @@
#define UI(b) (((UIBridgeData *)b)->ui)
// Call a function in the UI thread
#if MIN_LOG_LEVEL <= DEBUG_LOG_LEVEL
static size_t uilog_seen = 0;
static argv_callback uilog_event = NULL;
#define UI_CALL(ui, name, argc, ...) \
do { \
if (uilog_event == ui_bridge_##name##_event) { \
uilog_seen++; \
} else { \
if (uilog_seen > 0) { \
DLOG("UI bridge: ...%zu times", uilog_seen); \
} \
DLOG("UI bridge: " STR(name)); \
uilog_seen = 0; \
uilog_event = ui_bridge_##name##_event; \
} \
((UIBridgeData *)ui)->scheduler( \
event_create(1, ui_bridge_##name##_event, argc, __VA_ARGS__), UI(ui)); \
} while (0)
#else
// Schedule a function call on the UI bridge thread.
#define UI_CALL(ui, name, argc, ...) \
((UIBridgeData *)ui)->scheduler( \
event_create(1, ui_bridge_##name##_event, argc, __VA_ARGS__), UI(ui))
#endif
#define INT2PTR(i) ((void *)(uintptr_t)i)
#define PTR2INT(p) ((int)(uintptr_t)p)
@@ -218,16 +239,16 @@ static void ui_bridge_mode_change_event(void **argv)
}
static void ui_bridge_set_scroll_region(UI *b, int top, int bot, int left,
int right)
int right)
{
UI_CALL(b, set_scroll_region, 5, b, INT2PTR(top), INT2PTR(bot),
INT2PTR(left), INT2PTR(right));
INT2PTR(left), INT2PTR(right));
}
static void ui_bridge_set_scroll_region_event(void **argv)
{
UI *ui = UI(argv[0]);
ui->set_scroll_region(ui, PTR2INT(argv[1]), PTR2INT(argv[2]),
PTR2INT(argv[3]), PTR2INT(argv[4]));
PTR2INT(argv[3]), PTR2INT(argv[4]));
}
static void ui_bridge_scroll(UI *b, int count)