summaryrefslogtreecommitdiff
path: root/ANDROID_3.4.5/include/linux/poll.h
diff options
context:
space:
mode:
authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/include/linux/poll.h
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
downloadFOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz
FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2
FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/include/linux/poll.h')
-rw-r--r--ANDROID_3.4.5/include/linux/poll.h168
1 files changed, 0 insertions, 168 deletions
diff --git a/ANDROID_3.4.5/include/linux/poll.h b/ANDROID_3.4.5/include/linux/poll.h
deleted file mode 100644
index 48fe8bc3..00000000
--- a/ANDROID_3.4.5/include/linux/poll.h
+++ /dev/null
@@ -1,168 +0,0 @@
-#ifndef _LINUX_POLL_H
-#define _LINUX_POLL_H
-
-#include <asm/poll.h>
-
-#ifdef __KERNEL__
-
-#include <linux/compiler.h>
-#include <linux/ktime.h>
-#include <linux/wait.h>
-#include <linux/string.h>
-#include <linux/fs.h>
-#include <linux/sysctl.h>
-#include <asm/uaccess.h>
-
-extern struct ctl_table epoll_table[]; /* for sysctl */
-/* ~832 bytes of stack space used max in sys_select/sys_poll before allocating
- additional memory. */
-#define MAX_STACK_ALLOC 832
-#define FRONTEND_STACK_ALLOC 256
-#define SELECT_STACK_ALLOC FRONTEND_STACK_ALLOC
-#define POLL_STACK_ALLOC FRONTEND_STACK_ALLOC
-#define WQUEUES_STACK_ALLOC (MAX_STACK_ALLOC - FRONTEND_STACK_ALLOC)
-#define N_INLINE_POLL_ENTRIES (WQUEUES_STACK_ALLOC / sizeof(struct poll_table_entry))
-
-#define DEFAULT_POLLMASK (POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM)
-
-struct poll_table_struct;
-
-/*
- * structures and helpers for f_op->poll implementations
- */
-typedef void (*poll_queue_proc)(struct file *, wait_queue_head_t *, struct poll_table_struct *);
-
-/*
- * Do not touch the structure directly, use the access functions
- * poll_does_not_wait() and poll_requested_events() instead.
- */
-typedef struct poll_table_struct {
- poll_queue_proc _qproc;
- unsigned long _key;
-} poll_table;
-
-static inline void poll_wait(struct file * filp, wait_queue_head_t * wait_address, poll_table *p)
-{
- if (p && p->_qproc && wait_address)
- p->_qproc(filp, wait_address, p);
-}
-
-/*
- * Return true if it is guaranteed that poll will not wait. This is the case
- * if the poll() of another file descriptor in the set got an event, so there
- * is no need for waiting.
- */
-static inline bool poll_does_not_wait(const poll_table *p)
-{
- return p == NULL || p->_qproc == NULL;
-}
-
-/*
- * Return the set of events that the application wants to poll for.
- * This is useful for drivers that need to know whether a DMA transfer has
- * to be started implicitly on poll(). You typically only want to do that
- * if the application is actually polling for POLLIN and/or POLLOUT.
- */
-static inline unsigned long poll_requested_events(const poll_table *p)
-{
- return p ? p->_key : ~0UL;
-}
-
-static inline void init_poll_funcptr(poll_table *pt, poll_queue_proc qproc)
-{
- pt->_qproc = qproc;
- pt->_key = ~0UL; /* all events enabled */
-}
-
-struct poll_table_entry {
- struct file *filp;
- unsigned long key;
- wait_queue_t wait;
- wait_queue_head_t *wait_address;
-};
-
-/*
- * Structures and helpers for select/poll syscall
- */
-struct poll_wqueues {
- poll_table pt;
- struct poll_table_page *table;
- struct task_struct *polling_task;
- int triggered;
- int error;
- int inline_index;
- struct poll_table_entry inline_entries[N_INLINE_POLL_ENTRIES];
-};
-
-extern void poll_initwait(struct poll_wqueues *pwq);
-extern void poll_freewait(struct poll_wqueues *pwq);
-extern int poll_schedule_timeout(struct poll_wqueues *pwq, int state,
- ktime_t *expires, unsigned long slack);
-extern long select_estimate_accuracy(struct timespec *tv);
-
-
-static inline int poll_schedule(struct poll_wqueues *pwq, int state)
-{
- return poll_schedule_timeout(pwq, state, NULL, 0);
-}
-
-/*
- * Scalable version of the fd_set.
- */
-
-typedef struct {
- unsigned long *in, *out, *ex;
- unsigned long *res_in, *res_out, *res_ex;
-} fd_set_bits;
-
-/*
- * How many longwords for "nr" bits?
- */
-#define FDS_BITPERLONG (8*sizeof(long))
-#define FDS_LONGS(nr) (((nr)+FDS_BITPERLONG-1)/FDS_BITPERLONG)
-#define FDS_BYTES(nr) (FDS_LONGS(nr)*sizeof(long))
-
-/*
- * We do a VERIFY_WRITE here even though we are only reading this time:
- * we'll write to it eventually..
- *
- * Use "unsigned long" accesses to let user-mode fd_set's be long-aligned.
- */
-static inline
-int get_fd_set(unsigned long nr, void __user *ufdset, unsigned long *fdset)
-{
- nr = FDS_BYTES(nr);
- if (ufdset)
- return copy_from_user(fdset, ufdset, nr) ? -EFAULT : 0;
-
- memset(fdset, 0, nr);
- return 0;
-}
-
-static inline unsigned long __must_check
-set_fd_set(unsigned long nr, void __user *ufdset, unsigned long *fdset)
-{
- if (ufdset)
- return __copy_to_user(ufdset, fdset, FDS_BYTES(nr));
- return 0;
-}
-
-static inline
-void zero_fd_set(unsigned long nr, unsigned long *fdset)
-{
- memset(fdset, 0, FDS_BYTES(nr));
-}
-
-#define MAX_INT64_SECONDS (((s64)(~((u64)0)>>1)/HZ)-1)
-
-extern int do_select(int n, fd_set_bits *fds, struct timespec *end_time);
-extern int do_sys_poll(struct pollfd __user * ufds, unsigned int nfds,
- struct timespec *end_time);
-extern int core_sys_select(int n, fd_set __user *inp, fd_set __user *outp,
- fd_set __user *exp, struct timespec *end_time);
-
-extern int poll_select_set_timeout(struct timespec *to, long sec, long nsec);
-
-#endif /* KERNEL */
-
-#endif /* _LINUX_POLL_H */