Add wrapper for kevent() syscall
Noted as missing by: nicolas.leonard@animaths.com
This commit is contained in:
parent
b275c430a5
commit
532c92a865
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=64346
@ -29,7 +29,8 @@ PRECIOUSLIB= yes
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HIDDEN_SYSCALLS= aio_suspend.o accept.o bind.o close.o connect.o dup.o dup2.o \
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execve.o fchflags.o fchmod.o fchown.o fcntl.o \
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flock.o fpathconf.o fstat.o fstatfs.o fsync.o getdirentries.o \
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getlogin.o getpeername.o getsockname.o getsockopt.o ioctl.o listen.o \
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getlogin.o getpeername.o getsockname.o getsockopt.o ioctl.o \
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kevent.o listen.o \
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msync.o nanosleep.o nfssvc.o open.o poll.o read.o readv.o recvfrom.o \
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recvmsg.o sched_yield.o select.o sendfile.o sendmsg.o sendto.o \
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setsockopt.o shutdown.o sigaction.o sigaltstack.o \
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@ -65,6 +65,7 @@ SRCS+= \
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uthread_jmp.c \
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uthread_join.c \
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uthread_kern.c \
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uthread_kevent.c \
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uthread_kill.c \
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uthread_listen.c \
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uthread_mattr_init.c \
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@ -1063,7 +1063,7 @@ void _thread_kern_sched(ucontext_t *);
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void _thread_kern_sched_state(enum pthread_state,char *fname,int lineno);
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void _thread_kern_sched_state_unlock(enum pthread_state state,
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spinlock_t *lock, char *fname, int lineno);
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void _thread_kern_set_timeout(struct timespec *);
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void _thread_kern_set_timeout(const struct timespec *);
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void _thread_kern_sig_defer(void);
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void _thread_kern_sig_undefer(void);
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void _thread_sig_handler(int, int, ucontext_t *);
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@ -1008,7 +1008,7 @@ _thread_kern_poll(int wait_reqd)
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}
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void
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_thread_kern_set_timeout(struct timespec * timeout)
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_thread_kern_set_timeout(const struct timespec * timeout)
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{
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struct timespec current_time;
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struct timeval tv;
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80
lib/libc_r/uthread/uthread_kevent.c
Normal file
80
lib/libc_r/uthread/uthread_kevent.c
Normal file
@ -0,0 +1,80 @@
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/*-
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* Copyright (c) 2000 Jonathan Lemon <jlemon@flugsvamp.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <unistd.h>
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#include <errno.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/fcntl.h>
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#include <sys/event.h>
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#ifdef _THREAD_SAFE
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#include <pthread.h>
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#include "pthread_private.h"
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int
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_kevent(int kq, const struct kevent *changelist, int nchanges,
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struct kevent *eventlist, int nevents, const struct timespec *timeout)
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{
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struct timespec nullts = { 0, 0 };
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int rc;
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/* Set the wake up time */
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_thread_kern_set_timeout(timeout);
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rc = _thread_sys_kevent(kq, changelist, nchanges,
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eventlist, nevents, &nullts);
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if (rc == 0 && (timeout == NULL ||
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timeout->tv_sec != 0 || timeout->tv_nsec != 0)) {
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/* Save the socket file descriptor: */
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_thread_run->data.fd.fd = kq;
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_thread_run->data.fd.fname = __FILE__;
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_thread_run->data.fd.branch = __LINE__;
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do {
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/* Reset the interrupted operation flag: */
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_thread_run->interrupted = 0;
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_thread_kern_sched_state(PS_FDR_WAIT,
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__FILE__, __LINE__);
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if (_thread_run->interrupted) {
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errno = EINTR;
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rc = -1;
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break;
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}
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rc = _thread_sys_kevent(kq, NULL, 0,
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eventlist, nevents, &nullts);
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} while (rc == 0 && timeout != NULL);
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}
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return (rc);
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}
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__strong_reference(_kevent, kevent);
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#endif
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@ -29,7 +29,8 @@ PRECIOUSLIB= yes
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HIDDEN_SYSCALLS= aio_suspend.o accept.o bind.o close.o connect.o dup.o dup2.o \
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execve.o fchflags.o fchmod.o fchown.o fcntl.o \
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flock.o fpathconf.o fstat.o fstatfs.o fsync.o getdirentries.o \
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getlogin.o getpeername.o getsockname.o getsockopt.o ioctl.o listen.o \
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getlogin.o getpeername.o getsockname.o getsockopt.o ioctl.o \
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kevent.o listen.o \
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msync.o nanosleep.o nfssvc.o open.o poll.o read.o readv.o recvfrom.o \
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recvmsg.o sched_yield.o select.o sendfile.o sendmsg.o sendto.o \
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setsockopt.o shutdown.o sigaction.o sigaltstack.o \
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@ -65,6 +65,7 @@ SRCS+= \
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uthread_jmp.c \
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uthread_join.c \
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uthread_kern.c \
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uthread_kevent.c \
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uthread_kill.c \
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uthread_listen.c \
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uthread_mattr_init.c \
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@ -1008,7 +1008,7 @@ _thread_kern_poll(int wait_reqd)
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}
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void
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_thread_kern_set_timeout(struct timespec * timeout)
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_thread_kern_set_timeout(const struct timespec * timeout)
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{
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struct timespec current_time;
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struct timeval tv;
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@ -1063,7 +1063,7 @@ void _thread_kern_sched(ucontext_t *);
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void _thread_kern_sched_state(enum pthread_state,char *fname,int lineno);
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void _thread_kern_sched_state_unlock(enum pthread_state state,
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spinlock_t *lock, char *fname, int lineno);
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void _thread_kern_set_timeout(struct timespec *);
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void _thread_kern_set_timeout(const struct timespec *);
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void _thread_kern_sig_defer(void);
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void _thread_kern_sig_undefer(void);
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void _thread_sig_handler(int, int, ucontext_t *);
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@ -29,7 +29,8 @@ PRECIOUSLIB= yes
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HIDDEN_SYSCALLS= aio_suspend.o accept.o bind.o close.o connect.o dup.o dup2.o \
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execve.o fchflags.o fchmod.o fchown.o fcntl.o \
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flock.o fpathconf.o fstat.o fstatfs.o fsync.o getdirentries.o \
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getlogin.o getpeername.o getsockname.o getsockopt.o ioctl.o listen.o \
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getlogin.o getpeername.o getsockname.o getsockopt.o ioctl.o \
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kevent.o listen.o \
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msync.o nanosleep.o nfssvc.o open.o poll.o read.o readv.o recvfrom.o \
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recvmsg.o sched_yield.o select.o sendfile.o sendmsg.o sendto.o \
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setsockopt.o shutdown.o sigaction.o sigaltstack.o \
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@ -65,6 +65,7 @@ SRCS+= \
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uthread_jmp.c \
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uthread_join.c \
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uthread_kern.c \
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uthread_kevent.c \
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uthread_kill.c \
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uthread_listen.c \
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uthread_mattr_init.c \
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@ -1008,7 +1008,7 @@ _thread_kern_poll(int wait_reqd)
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}
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void
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_thread_kern_set_timeout(struct timespec * timeout)
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_thread_kern_set_timeout(const struct timespec * timeout)
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{
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struct timespec current_time;
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struct timeval tv;
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@ -1063,7 +1063,7 @@ void _thread_kern_sched(ucontext_t *);
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void _thread_kern_sched_state(enum pthread_state,char *fname,int lineno);
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void _thread_kern_sched_state_unlock(enum pthread_state state,
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spinlock_t *lock, char *fname, int lineno);
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void _thread_kern_set_timeout(struct timespec *);
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void _thread_kern_set_timeout(const struct timespec *);
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void _thread_kern_sig_defer(void);
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void _thread_kern_sig_undefer(void);
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void _thread_sig_handler(int, int, ucontext_t *);
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