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Add additional grid consistency checks for macOS.

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This commit is contained in:
Nicholas Marriott
2026-06-29 10:20:38 +01:00
parent d5284be91d
commit ad74c5ed7f
1 changed files with 46 additions and 3 deletions
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49
grid.c
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@@ -18,6 +18,9 @@
#include <sys/types.h>
#ifdef __APPLE__
#include <assert.h>
#endif
#include <stdlib.h>
#include <string.h>
@@ -56,6 +59,28 @@ static const struct grid_cell_entry grid_cleared_entry = {
{ .data = { 0, 8, 8, ' ' } }, GRID_FLAG_CLEARED
};
#ifdef __APPLE__
static void
grid_check_lines(struct grid *gd)
{
u_int i, j;
for (i = 0; i < gd->hsize + gd->sy; i++) {
for (j = i + 1; j < gd->hsize + gd->sy; j++) {
if (gd->linedata[i].celldata != NULL)
assert(gd->linedata[i].celldata != gd->linedata[j].celldata);
if (gd->linedata[i].extddata != NULL)
assert(gd->linedata[i].extddata != gd->linedata[j].extddata);
}
}
}
#else
static void
grid_check_lines(__unused struct grid *gd)
{
}
#endif
/* Store cell in entry. */
static void
grid_store_cell(struct grid_cell_entry *gce, const struct grid_cell *gc,
@@ -287,9 +312,17 @@ grid_set_tab(struct grid_cell *gc, u_int width)
static void
grid_free_line(struct grid *gd, u_int py)
{
free(gd->linedata[py].celldata);
free(gd->linedata[py].extddata);
memset(&gd->linedata[py], 0, sizeof gd->linedata[py]);
struct grid_line *gl = &gd->linedata[py];
#ifdef __APPLE__
assert(gl->cellused <= gl->cellsize);
assert(gl->extdsize == 0 || gl->extddata != NULL);
assert(gl->cellsize == 0 || gl->celldata != NULL);
#endif
free(gl->celldata);
free(gl->extddata);
memset(gl, 0, sizeof *gl);
}
/* Free several lines. */
@@ -449,6 +482,8 @@ grid_scroll_history(struct grid *gd, u_int bg)
gd->linedata[gd->hsize].time = current_time;
gd->hsize++;
gd->scroll_added++;
grid_check_lines(gd);
}
/* Clear the history. */
@@ -498,6 +533,8 @@ grid_scroll_history_region(struct grid *gd, u_int upper, u_int lower, u_int bg)
gd->hscrolled++;
gd->hsize++;
gd->scroll_added++;
grid_check_lines(gd);
}
/* Expand line to fit to cell. */
@@ -759,6 +796,8 @@ grid_move_lines(struct grid *gd, u_int dy, u_int py, u_int ny, u_int bg)
}
if (py != 0 && (py < dy || py >= dy + ny))
gd->linedata[py - 1].flags &= ~GRID_LINE_WRAPPED;
grid_check_lines(gd);
}
/* Move a group of cells. */
@@ -1248,6 +1287,8 @@ grid_duplicate_lines(struct grid *dst, u_int dy, struct grid *src, u_int sy,
sy++;
dy++;
}
grid_check_lines(dst);
}
/* Mark line as dead. */
@@ -1544,6 +1585,8 @@ grid_reflow(struct grid *gd, u_int sx)
gd->linedata = target->linedata;
free(target);
gd->scroll_generation++;
grid_check_lines(gd);
}
/* Convert to position based on wrapped lines. */