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drivers/oprofile/event_buffer.h
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/** * @file event_buffer.h * * @remark Copyright 2002 OProfile authors * @remark Read the file COPYING * * @author John Levon <levon@movementarian.org> */ #ifndef EVENT_BUFFER_H #define EVENT_BUFFER_H |
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#include <linux/types.h> |
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#include <linux/mutex.h> |
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int alloc_event_buffer(void); void free_event_buffer(void); |
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/** * Add data to the event buffer. * The data passed is free-form, but typically consists of * file offsets, dcookies, context information, and ESCAPE codes. */ void add_event_entry(unsigned long data); |
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/* wake up the process sleeping on the event file */ void wake_up_buffer_waiter(void); |
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#define INVALID_COOKIE ~0UL #define NO_COOKIE 0UL |
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extern const struct file_operations event_buffer_fops; |
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/* mutex between sync_cpu_buffers() and the * file reading code. */ |
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extern struct mutex buffer_mutex; |
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#endif /* EVENT_BUFFER_H */ |