#include <Sync/poll.h>
#include <bordoisila_ptr.h>
#include <Log/klog.h>
#include <Log/_print.h>
#include <Hal/AA64/sched.h>
#include <timer.h>
#include <Fs/vfs.h>
#include <process.h>
#include <Drivers/uart.h>
#include <_null.h>
#include <Mm/kmalloc.h>
#include <fixup.h>

Include dependency graph for poll.c:

Macros
#define	POLL_MAX_FD_MONITOR 1024

Functions
AuVFSNode *	AuPollGetFile (AA64Thread *thr, int fd)

void	AuPollWait (AuWaitQueue q, AuPollTable pt)
	AuPollWait – helper function to create a wait queue.

int	AuPoll (_AuUser_PollFD fds[], nfds_t num_fd, int timeout)
	AuPoll – poll system call.

Macro Definition Documentation

◆ POLL_MAX_FD_MONITOR

#define POLL_MAX_FD_MONITOR 1024

BSD 2-Clause License

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Function Documentation

◆ AuPoll()

int AuPoll	(	_AuUser_PollFD	fds[],
		nfds_t	num_fd,
		int	timeout
	)

AuPoll – poll system call.

Parameters

fds	– Pointer to file descriptor array
num_fd	– number of file descriptor to monitor
timeout	– timeout in millisecond

copy it from user

check all file descriptors

the poll system call suggest that it revent should have POLLERR | POLLHUP | POLLNVAL present

check for timeout value , 0 means non-blocking and non sleeping, -1 means forever

we should also check for signal, but skipping for now

◆ AuPollGetFile()

AuVFSNode * AuPollGetFile	(	AA64Thread *	thr,
		int	fd
	)

◆ AuPollWait()

void AuPollWait	(	AuWaitQueue *	q,
		AuPollTable *	pt
	)

AuPollWait – helper function to create a wait queue.