The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/compat/cloudabi/cloudabi_util.h

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    1 /*-
    2  * Copyright (c) 2015-2017 Nuxi, https://nuxi.nl/
    3  *
    4  * Redistribution and use in source and binary forms, with or without
    5  * modification, are permitted provided that the following conditions
    6  * are met:
    7  * 1. Redistributions of source code must retain the above copyright
    8  *    notice, this list of conditions and the following disclaimer.
    9  * 2. Redistributions in binary form must reproduce the above copyright
   10  *    notice, this list of conditions and the following disclaimer in the
   11  *    documentation and/or other materials provided with the distribution.
   12  *
   13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   16  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   23  * SUCH DAMAGE.
   24  *
   25  * $FreeBSD$
   26  */
   27 
   28 #ifndef _CLOUDABI_UTIL_H_
   29 #define _CLOUDABI_UTIL_H_
   30 
   31 #include <sys/socket.h>
   32 
   33 #include <contrib/cloudabi/cloudabi_types_common.h>
   34 
   35 struct file;
   36 struct sysentvec;
   37 struct thread;
   38 struct timespec;
   39 
   40 /* Fetches the time value of a clock. */
   41 int cloudabi_clock_time_get(struct thread *, cloudabi_clockid_t,
   42     cloudabi_timestamp_t *);
   43 
   44 /* Converts a FreeBSD errno to a CloudABI errno. */
   45 cloudabi_errno_t cloudabi_convert_errno(int);
   46 
   47 /* Converts a file descriptor to a CloudABI file descriptor type. */
   48 cloudabi_filetype_t cloudabi_convert_filetype(const struct file *);
   49 
   50 /* Converts CloudABI rights to a set of Capsicum capabilities. */
   51 int cloudabi_convert_rights(cloudabi_rights_t, cap_rights_t *);
   52 
   53 /* Removes rights that conflict with the file descriptor type. */
   54 void cloudabi_remove_conflicting_rights(cloudabi_filetype_t,
   55     cloudabi_rights_t *, cloudabi_rights_t *);
   56 
   57 /* Converts a struct timespec to a CloudABI timestamp. */
   58 int cloudabi_convert_timespec(const struct timespec *, cloudabi_timestamp_t *);
   59 
   60 /*
   61  * Blocking futex functions.
   62  *
   63  * These functions are called by CloudABI's polling system calls to
   64  * sleep on a lock or condition variable.
   65  */
   66 int cloudabi_futex_condvar_wait(struct thread *, cloudabi_condvar_t *,
   67     cloudabi_scope_t, cloudabi_lock_t *, cloudabi_scope_t, cloudabi_clockid_t,
   68     cloudabi_timestamp_t, cloudabi_timestamp_t, bool);
   69 int cloudabi_futex_lock_rdlock(struct thread *, cloudabi_lock_t *,
   70     cloudabi_scope_t, cloudabi_clockid_t, cloudabi_timestamp_t,
   71     cloudabi_timestamp_t, bool);
   72 int cloudabi_futex_lock_wrlock(struct thread *, cloudabi_lock_t *,
   73     cloudabi_scope_t, cloudabi_clockid_t, cloudabi_timestamp_t,
   74     cloudabi_timestamp_t, bool);
   75 
   76 /* Socket operations. */
   77 int cloudabi_sock_recv(struct thread *, cloudabi_fd_t, struct iovec *, size_t,
   78     cloudabi_fd_t *, size_t, cloudabi_riflags_t, size_t *, size_t *,
   79     cloudabi_roflags_t *);
   80 int cloudabi_sock_send(struct thread *, cloudabi_fd_t, struct iovec *, size_t,
   81     const cloudabi_fd_t *, size_t, size_t *);
   82 
   83 /* vDSO setup and teardown. */
   84 void cloudabi_vdso_init(struct sysentvec *, char *, char *);
   85 void cloudabi_vdso_destroy(struct sysentvec *);
   86 
   87 #endif

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