diff options
Diffstat (limited to 'ANDROID_3.4.5/include/linux/eventfd.h')
-rw-r--r-- | ANDROID_3.4.5/include/linux/eventfd.h | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/ANDROID_3.4.5/include/linux/eventfd.h b/ANDROID_3.4.5/include/linux/eventfd.h deleted file mode 100644 index 91bb4f27..00000000 --- a/ANDROID_3.4.5/include/linux/eventfd.h +++ /dev/null @@ -1,83 +0,0 @@ -/* - * include/linux/eventfd.h - * - * Copyright (C) 2007 Davide Libenzi <davidel@xmailserver.org> - * - */ - -#ifndef _LINUX_EVENTFD_H -#define _LINUX_EVENTFD_H - -#include <linux/fcntl.h> -#include <linux/file.h> -#include <linux/wait.h> - -/* - * CAREFUL: Check include/asm-generic/fcntl.h when defining - * new flags, since they might collide with O_* ones. We want - * to re-use O_* flags that couldn't possibly have a meaning - * from eventfd, in order to leave a free define-space for - * shared O_* flags. - */ -#define EFD_SEMAPHORE (1 << 0) -#define EFD_CLOEXEC O_CLOEXEC -#define EFD_NONBLOCK O_NONBLOCK - -#define EFD_SHARED_FCNTL_FLAGS (O_CLOEXEC | O_NONBLOCK) -#define EFD_FLAGS_SET (EFD_SHARED_FCNTL_FLAGS | EFD_SEMAPHORE) - -#ifdef CONFIG_EVENTFD - -struct file *eventfd_file_create(unsigned int count, int flags); -struct eventfd_ctx *eventfd_ctx_get(struct eventfd_ctx *ctx); -void eventfd_ctx_put(struct eventfd_ctx *ctx); -struct file *eventfd_fget(int fd); -struct eventfd_ctx *eventfd_ctx_fdget(int fd); -struct eventfd_ctx *eventfd_ctx_fileget(struct file *file); -int eventfd_signal(struct eventfd_ctx *ctx, int n); -ssize_t eventfd_ctx_read(struct eventfd_ctx *ctx, int no_wait, __u64 *cnt); -int eventfd_ctx_remove_wait_queue(struct eventfd_ctx *ctx, wait_queue_t *wait, - __u64 *cnt); - -#else /* CONFIG_EVENTFD */ - -/* - * Ugly ugly ugly error layer to support modules that uses eventfd but - * pretend to work in !CONFIG_EVENTFD configurations. Namely, AIO. - */ -static inline struct file *eventfd_file_create(unsigned int count, int flags) -{ - return ERR_PTR(-ENOSYS); -} - -static inline struct eventfd_ctx *eventfd_ctx_fdget(int fd) -{ - return ERR_PTR(-ENOSYS); -} - -static inline int eventfd_signal(struct eventfd_ctx *ctx, int n) -{ - return -ENOSYS; -} - -static inline void eventfd_ctx_put(struct eventfd_ctx *ctx) -{ - -} - -static inline ssize_t eventfd_ctx_read(struct eventfd_ctx *ctx, int no_wait, - __u64 *cnt) -{ - return -ENOSYS; -} - -static inline int eventfd_ctx_remove_wait_queue(struct eventfd_ctx *ctx, - wait_queue_t *wait, __u64 *cnt) -{ - return -ENOSYS; -} - -#endif - -#endif /* _LINUX_EVENTFD_H */ - |