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misc: Add twalk_r function

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The twalk function is very difficult to use in a multi-threaded
program because there is no way to pass external state to the
iterator function.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
This commit is contained in:
Florian Weimer
2019-05-02 11:42:51 +02:00
parent 20aa581958
commit 7b807a35a8
37 changed files with 315 additions and 4 deletions
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include/search.h
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@@ -23,6 +23,8 @@ extern void *__tdelete (const void *__key, void **__rootp,
libc_hidden_proto (__tdelete)
extern void __twalk (const void *__root, __action_fn_t action);
libc_hidden_proto (__twalk)
extern __typeof__ (twalk_r) __twalk_r;
libc_hidden_proto (__twalk_r)
extern void __tdestroy (void *__root, __free_fn_t freefct);
libc_hidden_proto (__tdestroy)
#endif