mirror of
https://github.com/kovidgoyal/kitty
synced 2026-07-22 16:28:19 +02:00
d96752e0f1
glibc can raise its dynamic mmap threshold above these MB-scale allocations, routing later scrollback segments through brk. Closing windows then leaves the freed segments stranded in allocator bins and grows the long-lived kitty process. Back the existing batched segment layout with anonymous mappings instead. This preserves zero-initialization and pointer layout while ensuring the memory is returned to the OS when a history buffer is cleared or destroyed. Co-Authored-By: Claude <noreply@anthropic.com>
46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
/*
|
|
* history.h
|
|
* Copyright (C) 2024 Kovid Goyal <kovid at kovidgoyal.net>
|
|
*
|
|
* Distributed under terms of the GPL3 license.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "line.h"
|
|
|
|
typedef struct {
|
|
GPUCell *gpu_cells;
|
|
CPUCell *cpu_cells;
|
|
LineAttrs *line_attrs;
|
|
void *mem;
|
|
size_t mmap_size;
|
|
} HistoryBufSegment;
|
|
|
|
typedef struct {
|
|
void *ringbuf;
|
|
size_t maximum_size;
|
|
bool rewrap_needed;
|
|
} PagerHistoryBuf;
|
|
|
|
|
|
typedef struct {
|
|
PyObject_HEAD
|
|
|
|
index_type xnum, ynum, num_segments;
|
|
HistoryBufSegment *segments;
|
|
PagerHistoryBuf *pagerhist;
|
|
Line *line;
|
|
TextCache *text_cache;
|
|
index_type start_of_data, count;
|
|
} HistoryBuf;
|
|
|
|
|
|
HistoryBuf* alloc_historybuf(unsigned int, unsigned int, unsigned int, TextCache *tc);
|
|
HistoryBuf *historybuf_alloc_for_rewrap(unsigned int columns, HistoryBuf *self);
|
|
void historybuf_finish_rewrap(HistoryBuf *dest, HistoryBuf *src);
|
|
void historybuf_fast_rewrap(HistoryBuf *dest, HistoryBuf *src);
|
|
index_type historybuf_next_dest_line(HistoryBuf *self, ANSIBuf *as_ansi_buf, Line *src_line, index_type dest_y, Line *dest_line, bool continued);
|
|
bool historybuf_is_line_continued(HistoryBuf *self, index_type lnum);
|
|
void historybuf_delete_newest_lines(HistoryBuf *self, index_type count);
|