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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2020-02-09 17:55:37 +0000
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2020-02-09 17:55:37 +0000
commit6db1094f7af6ddd7ff37dbba82ff5074871a90d5 (patch)
tree97fafb91c50a18f43fca48d65108f1b6adecdcab /htl/forward.c
parent44a41fc2536f86f95fa7df36a2285101bb4157a3 (diff)
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htl: Move __register_atfork from forward to own file
Since we need it also in the static linking case.
Diffstat (limited to 'htl/forward.c')
-rw-r--r--htl/forward.c138
1 files changed, 0 insertions, 138 deletions
diff --git a/htl/forward.c b/htl/forward.c
index b0cc5f5..dfb7b79 100644
--- a/htl/forward.c
+++ b/htl/forward.c
@@ -143,141 +143,3 @@ FORWARD (pthread_setcanceltype, (int type, int *oldtype), (type, oldtype), 0)
struct __pthread_cancelation_handler *dummy_list;
FORWARD2 (__pthread_get_cleanup_stack, struct __pthread_cancelation_handler **,
(void), (), return &dummy_list);
-
-
-/* Fork interaction */
-
-struct atfork
-{
- void (*prepare) (void);
- void (*parent) (void);
- void (*child) (void);
- void *dso_handle;
- struct atfork *prev;
- struct atfork *next;
-};
-
-/* TODO: better locking */
-__libc_lock_define_initialized (static, atfork_lock);
-static struct atfork *fork_handlers, *fork_last_handler;
-
-static void
-atfork_pthread_prepare (void)
-{
- struct atfork *handlers, *last_handler;
-
- __libc_lock_lock (atfork_lock);
- handlers = fork_handlers;
- last_handler = fork_last_handler;
- __libc_lock_unlock (atfork_lock);
-
- if (last_handler == NULL)
- return;
-
- while (1)
- {
- if (last_handler->prepare != NULL)
- last_handler->prepare ();
- if (last_handler == handlers)
- break;
- last_handler = last_handler->prev;
- }
-}
-text_set_element (_hurd_atfork_prepare_hook, atfork_pthread_prepare);
-
-static void
-atfork_pthread_parent (void)
-{
- struct atfork *handlers;
-
- __libc_lock_lock (atfork_lock);
- handlers = fork_handlers;
- __libc_lock_unlock (atfork_lock);
-
- while (handlers != NULL)
- {
- if (handlers->parent != NULL)
- handlers->parent ();
- handlers = handlers->next;
- }
-}
-text_set_element (_hurd_atfork_parent_hook, atfork_pthread_parent);
-
-static void
-atfork_pthread_child (void)
-{
- struct atfork *handlers;
-
- __libc_lock_lock (atfork_lock);
- handlers = fork_handlers;
- __libc_lock_unlock (atfork_lock);
-
- while (handlers != NULL)
- {
- if (handlers->child != NULL)
- handlers->child ();
- handlers = handlers->next;
- }
-}
-text_set_element (_hurd_atfork_child_hook, atfork_pthread_child);
-
-int
-__register_atfork (void (*prepare) (void),
- void (*parent) (void),
- void (*child) (void),
- void *dso_handle)
-{
- struct atfork *new = malloc (sizeof (*new));
- if (new == NULL)
- return errno;
-
- new->prepare = prepare;
- new->parent = parent;
- new->child = child;
- new->dso_handle = dso_handle;
- new->prev = NULL;
-
- __libc_lock_lock (atfork_lock);
- new->next = fork_handlers;
- if (fork_handlers != NULL)
- fork_handlers->prev = new;
- fork_handlers = new;
- if (fork_last_handler == NULL)
- fork_last_handler = new;
- __libc_lock_unlock (atfork_lock);
-
- return 0;
-}
-libc_hidden_def (__register_atfork)
-
-void
-__unregister_atfork (void *dso_handle)
-{
- struct atfork **handlers, *prev = NULL, *next;
- __libc_lock_lock (atfork_lock);
- handlers = &fork_handlers;
- while (*handlers != NULL)
- {
- if ((*handlers)->dso_handle == dso_handle)
- {
- /* Drop this handler from the list. */
- if (*handlers == fork_last_handler)
- {
- /* Was last, new last is prev, if any. */
- fork_last_handler = prev;
- }
-
- next = (*handlers)->next;
- if (next != NULL)
- next->prev = prev;
- *handlers = next;
- }
- else
- {
- /* Just proceed to next handler. */
- prev = *handlers;
- handlers = &prev->next;
- }
- }
- __libc_lock_unlock (atfork_lock);
-}