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components/freertos: override per-task __cleanup handler to close stdin, stdout, stderr

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Default _cleanup_r doesn't do that, which leaks these three file descriptors.
This commit is contained in:
Ivan Grokhotkov
2016-09-19 19:28:36 +08:00
parent b1ac144874
commit e8ae38024d
2 changed files with 22 additions and 0 deletions
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17
components/esp32/syscalls.c
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@@ -367,6 +367,23 @@ void IRAM_ATTR _lock_release_recursive(_lock_t *lock) {
lock_release_generic(lock, queueQUEUE_TYPE_RECURSIVE_MUTEX);
}
// This function is not part on newlib API, it is defined in libc/stdio/local.h
// It is called as part of _reclaim_reent via a pointer in __cleanup member
// of struct _reent.
// This function doesn't call _fclose_r for _stdin, _stdout, _stderr members
// of struct reent. Not doing so causes a memory leak each time a task is
// terminated. We replace __cleanup member with _extra_cleanup_r (below) to work
// around this.
extern void _cleanup_r(struct _reent* r);
void _extra_cleanup_r(struct _reent* r)
{
_cleanup_r(r);
_fclose_r(r, r->_stdout);
_fclose_r(r, r->_stderr);
_fclose_r(r, r->_stdin);
}
static struct _reent s_reent;
/*