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-rw-r--r--ANDROID_3.4.5/include/linux/workqueue.h450
1 files changed, 0 insertions, 450 deletions
diff --git a/ANDROID_3.4.5/include/linux/workqueue.h b/ANDROID_3.4.5/include/linux/workqueue.h
deleted file mode 100644
index af155450..00000000
--- a/ANDROID_3.4.5/include/linux/workqueue.h
+++ /dev/null
@@ -1,450 +0,0 @@
-/*
- * workqueue.h --- work queue handling for Linux.
- */
-
-#ifndef _LINUX_WORKQUEUE_H
-#define _LINUX_WORKQUEUE_H
-
-#include <linux/timer.h>
-#include <linux/linkage.h>
-#include <linux/bitops.h>
-#include <linux/lockdep.h>
-#include <linux/threads.h>
-#include <linux/atomic.h>
-
-struct workqueue_struct;
-
-struct work_struct;
-typedef void (*work_func_t)(struct work_struct *work);
-
-/*
- * The first word is the work queue pointer and the flags rolled into
- * one
- */
-#define work_data_bits(work) ((unsigned long *)(&(work)->data))
-
-enum {
- WORK_STRUCT_PENDING_BIT = 0, /* work item is pending execution */
- WORK_STRUCT_DELAYED_BIT = 1, /* work item is delayed */
- WORK_STRUCT_CWQ_BIT = 2, /* data points to cwq */
- WORK_STRUCT_LINKED_BIT = 3, /* next work is linked to this one */
-#ifdef CONFIG_DEBUG_OBJECTS_WORK
- WORK_STRUCT_STATIC_BIT = 4, /* static initializer (debugobjects) */
- WORK_STRUCT_COLOR_SHIFT = 5, /* color for workqueue flushing */
-#else
- WORK_STRUCT_COLOR_SHIFT = 4, /* color for workqueue flushing */
-#endif
-
- WORK_STRUCT_COLOR_BITS = 4,
-
- WORK_STRUCT_PENDING = 1 << WORK_STRUCT_PENDING_BIT,
- WORK_STRUCT_DELAYED = 1 << WORK_STRUCT_DELAYED_BIT,
- WORK_STRUCT_CWQ = 1 << WORK_STRUCT_CWQ_BIT,
- WORK_STRUCT_LINKED = 1 << WORK_STRUCT_LINKED_BIT,
-#ifdef CONFIG_DEBUG_OBJECTS_WORK
- WORK_STRUCT_STATIC = 1 << WORK_STRUCT_STATIC_BIT,
-#else
- WORK_STRUCT_STATIC = 0,
-#endif
-
- /*
- * The last color is no color used for works which don't
- * participate in workqueue flushing.
- */
- WORK_NR_COLORS = (1 << WORK_STRUCT_COLOR_BITS) - 1,
- WORK_NO_COLOR = WORK_NR_COLORS,
-
- /* special cpu IDs */
- WORK_CPU_UNBOUND = NR_CPUS,
- WORK_CPU_NONE = NR_CPUS + 1,
- WORK_CPU_LAST = WORK_CPU_NONE,
-
- /*
- * Reserve 7 bits off of cwq pointer w/ debugobjects turned
- * off. This makes cwqs aligned to 256 bytes and allows 15
- * workqueue flush colors.
- */
- WORK_STRUCT_FLAG_BITS = WORK_STRUCT_COLOR_SHIFT +
- WORK_STRUCT_COLOR_BITS,
-
- WORK_STRUCT_FLAG_MASK = (1UL << WORK_STRUCT_FLAG_BITS) - 1,
- WORK_STRUCT_WQ_DATA_MASK = ~WORK_STRUCT_FLAG_MASK,
- WORK_STRUCT_NO_CPU = WORK_CPU_NONE << WORK_STRUCT_FLAG_BITS,
-
- /* bit mask for work_busy() return values */
- WORK_BUSY_PENDING = 1 << 0,
- WORK_BUSY_RUNNING = 1 << 1,
-};
-
-struct work_struct {
- atomic_long_t data;
- struct list_head entry;
- work_func_t func;
-#ifdef CONFIG_LOCKDEP
- struct lockdep_map lockdep_map;
-#endif
-};
-
-#define WORK_DATA_INIT() ATOMIC_LONG_INIT(WORK_STRUCT_NO_CPU)
-#define WORK_DATA_STATIC_INIT() \
- ATOMIC_LONG_INIT(WORK_STRUCT_NO_CPU | WORK_STRUCT_STATIC)
-
-struct delayed_work {
- struct work_struct work;
- struct timer_list timer;
-};
-
-static inline struct delayed_work *to_delayed_work(struct work_struct *work)
-{
- return container_of(work, struct delayed_work, work);
-}
-
-struct execute_work {
- struct work_struct work;
-};
-
-#ifdef CONFIG_LOCKDEP
-/*
- * NB: because we have to copy the lockdep_map, setting _key
- * here is required, otherwise it could get initialised to the
- * copy of the lockdep_map!
- */
-#define __WORK_INIT_LOCKDEP_MAP(n, k) \
- .lockdep_map = STATIC_LOCKDEP_MAP_INIT(n, k),
-#else
-#define __WORK_INIT_LOCKDEP_MAP(n, k)
-#endif
-
-#define __WORK_INITIALIZER(n, f) { \
- .data = WORK_DATA_STATIC_INIT(), \
- .entry = { &(n).entry, &(n).entry }, \
- .func = (f), \
- __WORK_INIT_LOCKDEP_MAP(#n, &(n)) \
- }
-
-#define __DELAYED_WORK_INITIALIZER(n, f) { \
- .work = __WORK_INITIALIZER((n).work, (f)), \
- .timer = TIMER_INITIALIZER(NULL, 0, 0), \
- }
-
-#define __DEFERRED_WORK_INITIALIZER(n, f) { \
- .work = __WORK_INITIALIZER((n).work, (f)), \
- .timer = TIMER_DEFERRED_INITIALIZER(NULL, 0, 0), \
- }
-
-#define DECLARE_WORK(n, f) \
- struct work_struct n = __WORK_INITIALIZER(n, f)
-
-#define DECLARE_DELAYED_WORK(n, f) \
- struct delayed_work n = __DELAYED_WORK_INITIALIZER(n, f)
-
-#define DECLARE_DEFERRED_WORK(n, f) \
- struct delayed_work n = __DEFERRED_WORK_INITIALIZER(n, f)
-
-/*
- * initialize a work item's function pointer
- */
-#define PREPARE_WORK(_work, _func) \
- do { \
- (_work)->func = (_func); \
- } while (0)
-
-#define PREPARE_DELAYED_WORK(_work, _func) \
- PREPARE_WORK(&(_work)->work, (_func))
-
-#ifdef CONFIG_DEBUG_OBJECTS_WORK
-extern void __init_work(struct work_struct *work, int onstack);
-extern void destroy_work_on_stack(struct work_struct *work);
-static inline unsigned int work_static(struct work_struct *work)
-{
- return *work_data_bits(work) & WORK_STRUCT_STATIC;
-}
-#else
-static inline void __init_work(struct work_struct *work, int onstack) { }
-static inline void destroy_work_on_stack(struct work_struct *work) { }
-static inline unsigned int work_static(struct work_struct *work) { return 0; }
-#endif
-
-/*
- * initialize all of a work item in one go
- *
- * NOTE! No point in using "atomic_long_set()": using a direct
- * assignment of the work data initializer allows the compiler
- * to generate better code.
- */
-#ifdef CONFIG_LOCKDEP
-#define __INIT_WORK(_work, _func, _onstack) \
- do { \
- static struct lock_class_key __key; \
- \
- __init_work((_work), _onstack); \
- (_work)->data = (atomic_long_t) WORK_DATA_INIT(); \
- lockdep_init_map(&(_work)->lockdep_map, #_work, &__key, 0);\
- INIT_LIST_HEAD(&(_work)->entry); \
- PREPARE_WORK((_work), (_func)); \
- } while (0)
-#else
-#define __INIT_WORK(_work, _func, _onstack) \
- do { \
- __init_work((_work), _onstack); \
- (_work)->data = (atomic_long_t) WORK_DATA_INIT(); \
- INIT_LIST_HEAD(&(_work)->entry); \
- PREPARE_WORK((_work), (_func)); \
- } while (0)
-#endif
-
-#define INIT_WORK(_work, _func) \
- do { \
- __INIT_WORK((_work), (_func), 0); \
- } while (0)
-
-#define INIT_WORK_ONSTACK(_work, _func) \
- do { \
- __INIT_WORK((_work), (_func), 1); \
- } while (0)
-
-#define INIT_DELAYED_WORK(_work, _func) \
- do { \
- INIT_WORK(&(_work)->work, (_func)); \
- init_timer(&(_work)->timer); \
- } while (0)
-
-#define INIT_DELAYED_WORK_ONSTACK(_work, _func) \
- do { \
- INIT_WORK_ONSTACK(&(_work)->work, (_func)); \
- init_timer_on_stack(&(_work)->timer); \
- } while (0)
-
-#define INIT_DELAYED_WORK_DEFERRABLE(_work, _func) \
- do { \
- INIT_WORK(&(_work)->work, (_func)); \
- init_timer_deferrable(&(_work)->timer); \
- } while (0)
-
-/**
- * work_pending - Find out whether a work item is currently pending
- * @work: The work item in question
- */
-#define work_pending(work) \
- test_bit(WORK_STRUCT_PENDING_BIT, work_data_bits(work))
-
-/**
- * delayed_work_pending - Find out whether a delayable work item is currently
- * pending
- * @work: The work item in question
- */
-#define delayed_work_pending(w) \
- work_pending(&(w)->work)
-
-/**
- * work_clear_pending - for internal use only, mark a work item as not pending
- * @work: The work item in question
- */
-#define work_clear_pending(work) \
- clear_bit(WORK_STRUCT_PENDING_BIT, work_data_bits(work))
-
-/*
- * Workqueue flags and constants. For details, please refer to
- * Documentation/workqueue.txt.
- */
-enum {
- WQ_NON_REENTRANT = 1 << 0, /* guarantee non-reentrance */
- WQ_UNBOUND = 1 << 1, /* not bound to any cpu */
- WQ_FREEZABLE = 1 << 2, /* freeze during suspend */
- WQ_MEM_RECLAIM = 1 << 3, /* may be used for memory reclaim */
- WQ_HIGHPRI = 1 << 4, /* high priority */
- WQ_CPU_INTENSIVE = 1 << 5, /* cpu instensive workqueue */
-
- WQ_DRAINING = 1 << 6, /* internal: workqueue is draining */
- WQ_RESCUER = 1 << 7, /* internal: workqueue has rescuer */
-
- WQ_MAX_ACTIVE = 512, /* I like 512, better ideas? */
- WQ_MAX_UNBOUND_PER_CPU = 4, /* 4 * #cpus for unbound wq */
- WQ_DFL_ACTIVE = WQ_MAX_ACTIVE / 2,
-};
-
-/* unbound wq's aren't per-cpu, scale max_active according to #cpus */
-#define WQ_UNBOUND_MAX_ACTIVE \
- max_t(int, WQ_MAX_ACTIVE, num_possible_cpus() * WQ_MAX_UNBOUND_PER_CPU)
-
-/*
- * System-wide workqueues which are always present.
- *
- * system_wq is the one used by schedule[_delayed]_work[_on]().
- * Multi-CPU multi-threaded. There are users which expect relatively
- * short queue flush time. Don't queue works which can run for too
- * long.
- *
- * system_long_wq is similar to system_wq but may host long running
- * works. Queue flushing might take relatively long.
- *
- * system_nrt_wq is non-reentrant and guarantees that any given work
- * item is never executed in parallel by multiple CPUs. Queue
- * flushing might take relatively long.
- *
- * system_unbound_wq is unbound workqueue. Workers are not bound to
- * any specific CPU, not concurrency managed, and all queued works are
- * executed immediately as long as max_active limit is not reached and
- * resources are available.
- *
- * system_freezable_wq is equivalent to system_wq except that it's
- * freezable.
- *
- * system_nrt_freezable_wq is equivalent to system_nrt_wq except that
- * it's freezable.
- */
-extern struct workqueue_struct *system_wq;
-extern struct workqueue_struct *system_long_wq;
-extern struct workqueue_struct *system_nrt_wq;
-extern struct workqueue_struct *system_unbound_wq;
-extern struct workqueue_struct *system_freezable_wq;
-extern struct workqueue_struct *system_nrt_freezable_wq;
-
-extern struct workqueue_struct *
-__alloc_workqueue_key(const char *fmt, unsigned int flags, int max_active,
- struct lock_class_key *key, const char *lock_name, ...) __printf(1, 6);
-
-/**
- * alloc_workqueue - allocate a workqueue
- * @fmt: printf format for the name of the workqueue
- * @flags: WQ_* flags
- * @max_active: max in-flight work items, 0 for default
- * @args: args for @fmt
- *
- * Allocate a workqueue with the specified parameters. For detailed
- * information on WQ_* flags, please refer to Documentation/workqueue.txt.
- *
- * The __lock_name macro dance is to guarantee that single lock_class_key
- * doesn't end up with different namesm, which isn't allowed by lockdep.
- *
- * RETURNS:
- * Pointer to the allocated workqueue on success, %NULL on failure.
- */
-#ifdef CONFIG_LOCKDEP
-#define alloc_workqueue(fmt, flags, max_active, args...) \
-({ \
- static struct lock_class_key __key; \
- const char *__lock_name; \
- \
- if (__builtin_constant_p(fmt)) \
- __lock_name = (fmt); \
- else \
- __lock_name = #fmt; \
- \
- __alloc_workqueue_key((fmt), (flags), (max_active), \
- &__key, __lock_name, ##args); \
-})
-#else
-#define alloc_workqueue(fmt, flags, max_active, args...) \
- __alloc_workqueue_key((fmt), (flags), (max_active), \
- NULL, NULL, ##args)
-#endif
-
-/**
- * alloc_ordered_workqueue - allocate an ordered workqueue
- * @fmt: printf format for the name of the workqueue
- * @flags: WQ_* flags (only WQ_FREEZABLE and WQ_MEM_RECLAIM are meaningful)
- * @args: args for @fmt
- *
- * Allocate an ordered workqueue. An ordered workqueue executes at
- * most one work item at any given time in the queued order. They are
- * implemented as unbound workqueues with @max_active of one.
- *
- * RETURNS:
- * Pointer to the allocated workqueue on success, %NULL on failure.
- */
-#define alloc_ordered_workqueue(fmt, flags, args...) \
- alloc_workqueue(fmt, WQ_UNBOUND | (flags), 1, ##args)
-
-#define create_workqueue(name) \
- alloc_workqueue((name), WQ_MEM_RECLAIM, 1)
-#define create_freezable_workqueue(name) \
- alloc_workqueue((name), WQ_FREEZABLE | WQ_UNBOUND | WQ_MEM_RECLAIM, 1)
-#define create_singlethread_workqueue(name) \
- alloc_workqueue((name), WQ_UNBOUND | WQ_MEM_RECLAIM, 1)
-
-extern void destroy_workqueue(struct workqueue_struct *wq);
-
-extern int queue_work(struct workqueue_struct *wq, struct work_struct *work);
-extern int queue_work_on(int cpu, struct workqueue_struct *wq,
- struct work_struct *work);
-extern int queue_delayed_work(struct workqueue_struct *wq,
- struct delayed_work *work, unsigned long delay);
-extern int queue_delayed_work_on(int cpu, struct workqueue_struct *wq,
- struct delayed_work *work, unsigned long delay);
-
-extern void flush_workqueue(struct workqueue_struct *wq);
-extern void drain_workqueue(struct workqueue_struct *wq);
-extern void flush_scheduled_work(void);
-
-extern int schedule_work(struct work_struct *work);
-extern int schedule_work_on(int cpu, struct work_struct *work);
-extern int schedule_delayed_work(struct delayed_work *work, unsigned long delay);
-extern int schedule_delayed_work_on(int cpu, struct delayed_work *work,
- unsigned long delay);
-extern int schedule_on_each_cpu(work_func_t func);
-extern int keventd_up(void);
-
-int execute_in_process_context(work_func_t fn, struct execute_work *);
-
-extern bool flush_work(struct work_struct *work);
-extern bool flush_work_sync(struct work_struct *work);
-extern bool cancel_work_sync(struct work_struct *work);
-
-extern bool flush_delayed_work(struct delayed_work *dwork);
-extern bool flush_delayed_work_sync(struct delayed_work *work);
-extern bool cancel_delayed_work_sync(struct delayed_work *dwork);
-
-extern void workqueue_set_max_active(struct workqueue_struct *wq,
- int max_active);
-extern bool workqueue_congested(unsigned int cpu, struct workqueue_struct *wq);
-extern unsigned int work_cpu(struct work_struct *work);
-extern unsigned int work_busy(struct work_struct *work);
-
-/*
- * Kill off a pending schedule_delayed_work(). Note that the work callback
- * function may still be running on return from cancel_delayed_work(), unless
- * it returns 1 and the work doesn't re-arm itself. Run flush_workqueue() or
- * cancel_work_sync() to wait on it.
- */
-static inline bool cancel_delayed_work(struct delayed_work *work)
-{
- bool ret;
-
- ret = del_timer_sync(&work->timer);
- if (ret)
- work_clear_pending(&work->work);
- return ret;
-}
-
-/*
- * Like above, but uses del_timer() instead of del_timer_sync(). This means,
- * if it returns 0 the timer function may be running and the queueing is in
- * progress.
- */
-static inline bool __cancel_delayed_work(struct delayed_work *work)
-{
- bool ret;
-
- ret = del_timer(&work->timer);
- if (ret)
- work_clear_pending(&work->work);
- return ret;
-}
-
-#ifndef CONFIG_SMP
-static inline long work_on_cpu(unsigned int cpu, long (*fn)(void *), void *arg)
-{
- return fn(arg);
-}
-#else
-long work_on_cpu(unsigned int cpu, long (*fn)(void *), void *arg);
-#endif /* CONFIG_SMP */
-
-#ifdef CONFIG_FREEZER
-extern void freeze_workqueues_begin(void);
-extern bool freeze_workqueues_busy(void);
-extern void thaw_workqueues(void);
-#endif /* CONFIG_FREEZER */
-
-#endif