forked from Minki/linux
staging: android: logger: Finish documentation of two structs
Signed-off-by: Cruz Julian Bishop <cruzjbishop@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -32,38 +32,50 @@
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#include <asm/ioctls.h>
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/*
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/**
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* struct logger_log - represents a specific log, such as 'main' or 'radio'
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* @buffer: The actual ring buffer
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* @misc: The "misc" device representing the log
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* @wq: The wait queue for @readers
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* @readers: This log's readers
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* @mutex: The mutex that protects the @buffer
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* @w_off: The current write head offset
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* @head: The head, or location that readers start reading at.
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* @size: The size of the log
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* @logs: The list of log channels
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*
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* This structure lives from module insertion until module removal, so it does
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* not need additional reference counting. The structure is protected by the
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* mutex 'mutex'.
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*/
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struct logger_log {
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unsigned char *buffer;/* the ring buffer itself */
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struct miscdevice misc; /* misc device representing the log */
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wait_queue_head_t wq; /* wait queue for readers */
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struct list_head readers; /* this log's readers */
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struct mutex mutex; /* mutex protecting buffer */
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size_t w_off; /* current write head offset */
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size_t head; /* new readers start here */
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size_t size; /* size of the log */
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struct list_head logs; /* list of log channels (myself)*/
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unsigned char *buffer;
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struct miscdevice misc;
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wait_queue_head_t wq;
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struct list_head readers;
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struct mutex mutex;
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size_t w_off;
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size_t head;
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size_t size;
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struct list_head logs;
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};
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static LIST_HEAD(log_list);
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/*
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/**
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* struct logger_reader - a logging device open for reading
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* @log: The associated log
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* @list: The associated entry in @logger_log's list
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* @r_off: The current read head offset.
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*
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* This object lives from open to release, so we don't need additional
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* reference counting. The structure is protected by log->mutex.
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*/
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struct logger_reader {
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struct logger_log *log; /* associated log */
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struct list_head list; /* entry in logger_log's list */
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size_t r_off; /* current read head offset */
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struct logger_log *log;
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struct list_head list;
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size_t r_off;
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};
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/* logger_offset - returns index 'n' into the log via (optimized) modulus */
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