51 lines
2.0 KiB
C
51 lines
2.0 KiB
C
/****************************************************************************
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****************************************************************************
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***
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*** This header was automatically generated from a Linux kernel header
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*** of the same name, to make information necessary for userspace to
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*** call into the kernel available to libc. It contains only constants,
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*** structures, and macros generated from the original header, and thus,
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*** contains no copyrightable information.
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***
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****************************************************************************
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****************************************************************************/
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#ifndef _LINUX_NOTIFIER_H
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#define _LINUX_NOTIFIER_H
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#include <linux/errno.h>
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#include <linux/mutex.h>
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#include <linux/rwsem.h>
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struct notifier_block {
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int (*notifier_call)(struct notifier_block *, unsigned long, void *);
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struct notifier_block *next;
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int priority;
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};
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struct atomic_notifier_head {
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spinlock_t lock;
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struct notifier_block *head;
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};
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struct blocking_notifier_head {
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struct rw_semaphore rwsem;
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struct notifier_block *head;
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};
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struct raw_notifier_head {
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struct notifier_block *head;
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};
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#define ATOMIC_INIT_NOTIFIER_HEAD(name) do { spin_lock_init(&(name)->lock); (name)->head = NULL; } while (0)
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#define BLOCKING_INIT_NOTIFIER_HEAD(name) do { init_rwsem(&(name)->rwsem); (name)->head = NULL; } while (0)
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#define RAW_INIT_NOTIFIER_HEAD(name) do { (name)->head = NULL; } while (0)
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#define ATOMIC_NOTIFIER_INIT(name) { .lock = __SPIN_LOCK_UNLOCKED(name.lock), .head = NULL }
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#define BLOCKING_NOTIFIER_INIT(name) { .rwsem = __RWSEM_INITIALIZER((name).rwsem), .head = NULL }
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#define RAW_NOTIFIER_INIT(name) { .head = NULL }
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#define ATOMIC_NOTIFIER_HEAD(name) struct atomic_notifier_head name = ATOMIC_NOTIFIER_INIT(name)
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#define BLOCKING_NOTIFIER_HEAD(name) struct blocking_notifier_head name = BLOCKING_NOTIFIER_INIT(name)
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#define RAW_NOTIFIER_HEAD(name) struct raw_notifier_head name = RAW_NOTIFIER_INIT(name)
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#endif
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