2 * Copyright (c) 2015 Nuxi, https://nuxi.nl/
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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28 #ifndef _CLOUDABI_UTIL_H_
29 #define _CLOUDABI_UTIL_H_
31 #include <sys/socket.h>
33 #include <contrib/cloudabi/cloudabi_types_common.h>
40 /* Fetches the time value of a clock. */
41 int cloudabi_clock_time_get(struct thread *, cloudabi_clockid_t,
42 cloudabi_timestamp_t *);
44 /* Converts a FreeBSD errno to a CloudABI errno. */
45 cloudabi_errno_t cloudabi_convert_errno(int);
47 /* Converts FreeBSD's struct sockaddr to CloudABI's cloudabi_sockaddr_t. */
48 void cloudabi_convert_sockaddr(const struct sockaddr *, socklen_t,
49 cloudabi_sockaddr_t *);
51 /* Converts a file descriptor to a CloudABI file descriptor type. */
52 cloudabi_filetype_t cloudabi_convert_filetype(const struct file *);
54 /* Converts CloudABI rights to a set of Capsicum capabilities. */
55 int cloudabi_convert_rights(cloudabi_rights_t, cap_rights_t *);
57 /* Removes rights that conflict with the file descriptor type. */
58 void cloudabi_remove_conflicting_rights(cloudabi_filetype_t,
59 cloudabi_rights_t *, cloudabi_rights_t *);
61 /* Converts a struct timespec to a CloudABI timestamp. */
62 int cloudabi_convert_timespec(const struct timespec *, cloudabi_timestamp_t *);
65 * Blocking futex functions.
67 * These functions are called by CloudABI's polling system calls to
68 * sleep on a lock or condition variable.
70 int cloudabi_futex_condvar_wait(struct thread *, cloudabi_condvar_t *,
71 cloudabi_scope_t, cloudabi_lock_t *, cloudabi_scope_t, cloudabi_clockid_t,
72 cloudabi_timestamp_t, cloudabi_timestamp_t);
73 int cloudabi_futex_lock_rdlock(struct thread *, cloudabi_lock_t *,
74 cloudabi_scope_t, cloudabi_clockid_t, cloudabi_timestamp_t,
75 cloudabi_timestamp_t);
76 int cloudabi_futex_lock_wrlock(struct thread *, cloudabi_lock_t *,
77 cloudabi_scope_t, cloudabi_clockid_t, cloudabi_timestamp_t,
78 cloudabi_timestamp_t);
80 /* vDSO setup and teardown. */
81 void cloudabi_vdso_init(struct sysentvec *, char *, char *);
82 void cloudabi_vdso_destroy(struct sysentvec *);