[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/libc/glibc/glibc-2.22/hurd/hurd.h b/ap/libc/glibc/glibc-2.22/hurd/hurd.h
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+/* Copyright (C) 1993-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _HURD_H
+
+#define _HURD_H 1
+#include <features.h>
+
+
+/* Get types, macros, constants and function declarations
+ for all Mach microkernel interaction. */
+#include <mach.h>
+#include <mach/mig_errors.h>
+
+/* Get types and constants necessary for Hurd interfaces. */
+#include <hurd/hurd_types.h>
+
+/* Get MiG stub declarations for commonly used Hurd interfaces. */
+#include <hurd/auth.h>
+#include <hurd/process.h>
+#include <hurd/fs.h>
+#include <hurd/io.h>
+
+/* Get `struct hurd_port' and related definitions implementing lightweight
+ user references for ports. These are used pervasively throughout the C
+ library; this is here to avoid putting it in nearly every source file. */
+#include <hurd/port.h>
+
+#include <errno.h>
+
+#ifndef _HURD_H_EXTERN_INLINE
+#define _HURD_H_EXTERN_INLINE __extern_inline
+#endif
+
+_HURD_H_EXTERN_INLINE int
+__hurd_fail (error_t err)
+{
+ switch (err)
+ {
+ case EMACH_SEND_INVALID_DEST:
+ case EMIG_SERVER_DIED:
+ /* The server has disappeared! */
+ err = EIEIO;
+ break;
+
+ case KERN_NO_SPACE:
+ err = ENOMEM;
+ break;
+
+ case KERN_INVALID_ARGUMENT:
+ err = EINVAL;
+ break;
+
+ case 0:
+ return 0;
+
+ default:
+ break;
+ }
+
+ errno = err;
+ return -1;
+}
+
+/* Basic ports and info, initialized by startup. */
+
+extern int _hurd_exec_flags; /* Flags word passed in exec_startup. */
+extern struct hurd_port *_hurd_ports;
+extern unsigned int _hurd_nports;
+extern mode_t _hurd_umask;
+extern sigset_t _hurdsig_traced;
+
+/* Shorthand macro for internal library code referencing _hurd_ports (see
+ <hurd/port.h>). */
+
+#define __USEPORT(which, expr) \
+ HURD_PORT_USE (&_hurd_ports[INIT_PORT_##which], (expr))
+
+/* Function version of __USEPORT: calls OPERATE with a send right. */
+
+extern error_t _hurd_ports_use (int which, error_t (*operate) (mach_port_t));
+
+
+/* Base address and size of the initial stack set up by the exec server.
+ If using cthreads, this stack is deallocated in startup.
+ Not locked. */
+
+extern vm_address_t _hurd_stack_base;
+extern vm_size_t _hurd_stack_size;
+
+/* Initial file descriptor table we were passed at startup. If we are
+ using a real dtable, these are turned into that and then cleared at
+ startup. If not, these are never changed after startup. Not locked. */
+
+extern mach_port_t *_hurd_init_dtable;
+extern mach_msg_type_number_t _hurd_init_dtablesize;
+
+/* Current process IDs. */
+
+extern pid_t _hurd_pid, _hurd_ppid, _hurd_pgrp;
+extern int _hurd_orphaned;
+
+/* This variable is incremented every time the process IDs change. */
+extern unsigned int _hurd_pids_changed_stamp;
+
+/* This condition is broadcast every time the process IDs change. */
+extern struct condition _hurd_pids_changed_sync;
+
+/* Unix `data break', for brk and sbrk.
+ If brk and sbrk are not used, this info will not be initialized or used. */
+
+
+/* Data break. This is what `sbrk (0)' returns. */
+
+extern vm_address_t _hurd_brk;
+
+/* End of allocated space. This is generally `round_page (_hurd_brk)'. */
+
+extern vm_address_t _hurd_data_end;
+
+/* This mutex locks _hurd_brk and _hurd_data_end. */
+
+extern struct mutex _hurd_brk_lock;
+
+/* Set the data break to NEWBRK; _hurd_brk_lock must
+ be held, and is released on return. */
+
+extern int _hurd_set_brk (vm_address_t newbrk);
+
+#define __need_FILE
+#include <stdio.h>
+
+/* Calls to get and set basic ports. */
+
+extern error_t _hurd_ports_get (unsigned int which, mach_port_t *result);
+extern error_t _hurd_ports_set (unsigned int which, mach_port_t newport);
+
+extern process_t getproc (void);
+extern file_t getcwdir (void), getcrdir (void);
+extern auth_t getauth (void);
+extern mach_port_t getcttyid (void);
+extern int setproc (process_t);
+extern int setcwdir (file_t), setcrdir (file_t);
+extern int setcttyid (mach_port_t);
+
+/* Does reauth with the proc server and fd io servers. */
+extern int __setauth (auth_t), setauth (auth_t);
+
+
+/* Modify a port cell by looking up a directory name.
+ This verifies that it is a directory and that we have search permission. */
+extern int _hurd_change_directory_port_from_name (struct hurd_port *portcell,
+ const char *name);
+/* Same thing, but using an open file descriptor.
+ Also verifies that it is a directory and that we have search permission. */
+extern int _hurd_change_directory_port_from_fd (struct hurd_port *portcell,
+ int fd);
+
+
+
+/* Get and set the effective UID set. */
+extern int geteuids (int __n, uid_t *__uidset);
+extern int seteuids (int __n, const uid_t *__uidset);
+
+
+/* Split FILE into a directory and a name within the directory. The
+ directory lookup uses the current root and working directory. If
+ successful, stores in *NAME a pointer into FILE where the name
+ within directory begins and returns a port to the directory;
+ otherwise sets `errno' and returns MACH_PORT_NULL. */
+
+extern file_t __file_name_split (const char *file, char **name);
+extern file_t file_name_split (const char *file, char **name);
+
+/* Split DIRECTORY into a parent directory and a name within the directory.
+ This is the same as file_name_split, but ignores trailing slashes. */
+
+extern file_t __directory_name_split (const char *file, char **name);
+extern file_t directory_name_split (const char *file, char **name);
+
+/* Open a port to FILE with the given FLAGS and MODE (see <fcntl.h>).
+ The file lookup uses the current root and working directory.
+ Returns a port to the file if successful; otherwise sets `errno'
+ and returns MACH_PORT_NULL. */
+
+extern file_t __file_name_lookup (const char *file, int flags, mode_t mode);
+extern file_t file_name_lookup (const char *file, int flags, mode_t mode);
+
+/* Open a port to FILE with the given FLAGS and MODE (see <fcntl.h>). The
+ file lookup uses the current root directory, but uses STARTDIR as the
+ "working directory" for file relative names. Returns a port to the file
+ if successful; otherwise sets `errno' and returns MACH_PORT_NULL. */
+
+extern file_t __file_name_lookup_under (file_t startdir, const char *file,
+ int flags, mode_t mode);
+extern file_t file_name_lookup_under (file_t startdir, const char *file,
+ int flags, mode_t mode);
+
+
+/* Lookup FILE_NAME and return the node opened with FLAGS & MODE
+ (see hurd_file_name_lookup for details), but a simple file name (without
+ any directory prefixes) will be consecutively prefixed with the pathnames
+ in the `:' separated list PATH until one succeeds in a successful lookup.
+ If none succeed, then the first error that wasn't ENOENT is returned, or
+ ENOENT if no other errors were returned. If PREFIXED_NAME is non-NULL,
+ then if the result is looked up directly, *PREFIXED_NAME is set to NULL, and
+ if it is looked up using a prefix from PATH, *PREFIXED_NAME is set to
+ malloc'd storage containing the prefixed name. */
+extern file_t file_name_path_lookup (const char *file_name, const char *path,
+ int flags, mode_t mode,
+ char **prefixed_name);
+
+
+
+/* Open a file descriptor on a port. FLAGS are as for `open'; flags
+ affected by io_set_openmodes are not changed by this. If successful,
+ this consumes a user reference for PORT (which will be deallocated on
+ close). */
+
+extern int openport (io_t port, int flags);
+
+/* Open a stream on a port. MODE is as for `fopen'.
+ If successful, this consumes a user reference for PORT
+ (which will be deallocated on fclose). */
+
+extern FILE *fopenport (io_t port, const char *mode);
+extern FILE *__fopenport (io_t port, const char *mode);
+
+
+/* Execute a file, replacing TASK's current program image. */
+
+extern error_t _hurd_exec (task_t task,
+ file_t file,
+ char *const argv[],
+ char *const envp[]);
+
+
+/* Inform the proc server we have exited with STATUS, and kill the
+ task thoroughly. This function never returns, no matter what. */
+
+extern void _hurd_exit (int status) __attribute__ ((noreturn));
+
+
+/* Initialize the library data structures from the
+ ints and ports passed to us by the exec server.
+ Then vm_deallocate PORTARRAY and INTARRAY. */
+
+extern void _hurd_init (int flags, char **argv,
+ mach_port_t *portarray, size_t portarraysize,
+ int *intarray, size_t intarraysize);
+
+/* Do startup handshaking with the proc server, and initialize library data
+ structures that require proc server interaction. This includes
+ initializing signals; see _hurdsig_init in <hurd/signal.h>. */
+
+extern void _hurd_proc_init (char **argv,
+ const int *intarray, size_t intarraysize);
+
+
+/* Return the socket server for sockaddr domain DOMAIN. If DEAD is
+ nonzero, remove the old cached port and always do a fresh lookup.
+
+ It is assumed that a socket server will stay alive during a complex socket
+ operation involving several RPCs. But a socket server may die during
+ long idle periods between socket operations. Callers should first pass
+ zero for DEAD; if the first socket RPC tried on the returned port fails
+ with MACH_SEND_INVALID_DEST or MIG_SERVER_DIED (indicating the server
+ went away), the caller should call _hurd_socket_server again with DEAD
+ nonzero and retry the RPC on the new socket server port. */
+
+extern socket_t _hurd_socket_server (int domain, int dead);
+
+/* Send a `sig_post' RPC to process number PID. If PID is zero,
+ send the message to all processes in the current process's process group.
+ If PID is < -1, send SIG to all processes in process group - PID.
+ SIG and REFPORT are passed along in the request message. */
+
+extern error_t _hurd_sig_post (pid_t pid, int sig, mach_port_t refport);
+extern error_t hurd_sig_post (pid_t pid, int sig, mach_port_t refport);
+
+/* Fetch the host privileged port and device master port from the proc
+ server. They are fetched only once and then cached in the
+ variables below. A special program that gets them from somewhere
+ other than the proc server (such as a bootstrap filesystem) can set
+ these variables to install the ports. */
+
+extern kern_return_t __get_privileged_ports (mach_port_t *host_priv_ptr,
+ device_t *device_master_ptr);
+extern kern_return_t get_privileged_ports (mach_port_t *host_priv_ptr,
+ device_t *device_master_ptr);
+extern mach_port_t _hurd_host_priv, _hurd_device_master;
+
+/* Return the PID of the task whose control port is TASK.
+ On error, sets `errno' and returns -1. */
+
+extern pid_t __task2pid (task_t task), task2pid (task_t task);
+
+/* Return the task control port of process PID.
+ On error, sets `errno' and returns MACH_PORT_NULL. */
+
+extern task_t __pid2task (pid_t pid), pid2task (pid_t pid);
+
+/* Return the current thread's thread port. This is a cheap operation (no
+ system call), but it relies on Hurd signal state being set up. */
+extern thread_t hurd_thread_self (void);
+
+
+/* Cancel pending operations on THREAD. If it is doing an interruptible RPC,
+ that RPC will now return EINTR; otherwise, the "cancelled" flag will be
+ set, causing the next `hurd_check_cancel' call to return nonzero or the
+ next interruptible RPC to return EINTR (whichever is called first). */
+extern error_t hurd_thread_cancel (thread_t thread);
+
+/* Test and clear the calling thread's "cancelled" flag. */
+extern int hurd_check_cancel (void);
+
+
+/* Return the io server port for file descriptor FD.
+ This adds a Mach user reference to the returned port.
+ On error, sets `errno' and returns MACH_PORT_NULL. */
+
+extern io_t __getdport (int fd), getdport (int fd);
+
+
+#include <stdarg.h>
+
+/* Write formatted output to PORT, a Mach port supporting the i/o protocol,
+ according to the format string FORMAT, using the argument list in ARG. */
+int vpprintf (io_t port, const char *format, va_list arg);
+
+
+#endif /* hurd.h */