900e14a8f5
In browsers that access dynamic underlying data structures, like in the hists browser and its hist_entry rb_tree, we need to revalidate any reference to the underlying data structure, because they can have gone away, decayed. This fixes a problem where after a while the top entries get behind the top of the screen, i.e. the top_idx stays at 0, which means it is at the first entry in the rb_tree when in fact it wasn't because the browser->top didn't got revalidated after the timer ran and the underlying data structure got updated. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-mhje66qssdko24q67a2lhlho@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
53 lines
2 KiB
C
53 lines
2 KiB
C
#ifndef _PERF_UI_BROWSER_H_
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#define _PERF_UI_BROWSER_H_ 1
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#include <stdbool.h>
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#include <newt.h>
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#include <sys/types.h>
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#include "../types.h"
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#define HE_COLORSET_TOP 50
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#define HE_COLORSET_MEDIUM 51
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#define HE_COLORSET_NORMAL 52
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#define HE_COLORSET_SELECTED 53
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#define HE_COLORSET_CODE 54
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struct ui_browser {
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newtComponent form, sb;
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u64 index, top_idx;
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void *top, *entries;
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u16 y, x, width, height;
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void *priv;
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unsigned int (*refresh)(struct ui_browser *self);
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void (*write)(struct ui_browser *self, void *entry, int row);
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void (*seek)(struct ui_browser *self, off_t offset, int whence);
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u32 nr_entries;
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};
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void ui_browser__set_color(struct ui_browser *self, int color);
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void ui_browser__set_percent_color(struct ui_browser *self,
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double percent, bool current);
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bool ui_browser__is_current_entry(struct ui_browser *self, unsigned row);
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void ui_browser__refresh_dimensions(struct ui_browser *self);
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void ui_browser__reset_index(struct ui_browser *self);
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void ui_browser__gotorc(struct ui_browser *self, int y, int x);
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void ui_browser__add_exit_key(struct ui_browser *self, int key);
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void ui_browser__add_exit_keys(struct ui_browser *self, int keys[]);
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void __ui_browser__show_title(struct ui_browser *browser, const char *title);
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void ui_browser__show_title(struct ui_browser *browser, const char *title);
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int ui_browser__show(struct ui_browser *self, const char *title,
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const char *helpline, ...);
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void ui_browser__hide(struct ui_browser *self);
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int ui_browser__refresh(struct ui_browser *self);
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int ui_browser__run(struct ui_browser *self);
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void ui_browser__update_nr_entries(struct ui_browser *browser, u32 nr_entries);
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void ui_browser__rb_tree_seek(struct ui_browser *self, off_t offset, int whence);
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unsigned int ui_browser__rb_tree_refresh(struct ui_browser *self);
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void ui_browser__list_head_seek(struct ui_browser *self, off_t offset, int whence);
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unsigned int ui_browser__list_head_refresh(struct ui_browser *self);
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void ui_browser__init(void);
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#endif /* _PERF_UI_BROWSER_H_ */
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