TanTan
e311ca3275
Build NapCat Artifacts / Windows Loader Test (push) Canceled after 0s
Build NapCat Artifacts / Type Check & Test (push) Canceled after 0s
Build NapCat Artifacts / Build NapCat.Framework (push) Canceled after 0s
Build NapCat Artifacts / Build NapCat.Shell (push) Canceled after 0s
71 lines
2.2 KiB
Plaintext
71 lines
2.2 KiB
Plaintext
// Copyright (c) 2011-2015 Ryan Prichard
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the "Software"), to
|
|
// deal in the Software without restriction, including without limitation the
|
|
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
|
// sell copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in
|
|
// all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
// IN THE SOFTWARE.
|
|
|
|
#include "WakeupFd.h"
|
|
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
static void setFdNonBlock(int fd) {
|
|
int status = fcntl(fd, F_GETFL);
|
|
fcntl(fd, F_SETFL, status | O_NONBLOCK);
|
|
}
|
|
|
|
WakeupFd::WakeupFd() {
|
|
int pipeFd[2];
|
|
if (pipe(pipeFd) != 0) {
|
|
perror("Could not create internal wakeup pipe");
|
|
abort();
|
|
}
|
|
m_pipeReadFd = pipeFd[0];
|
|
m_pipeWriteFd = pipeFd[1];
|
|
setFdNonBlock(m_pipeReadFd);
|
|
setFdNonBlock(m_pipeWriteFd);
|
|
}
|
|
|
|
WakeupFd::~WakeupFd() {
|
|
close(m_pipeReadFd);
|
|
close(m_pipeWriteFd);
|
|
}
|
|
|
|
void WakeupFd::set() {
|
|
char dummy = 0;
|
|
int ret;
|
|
do {
|
|
ret = write(m_pipeWriteFd, &dummy, 1);
|
|
} while (ret < 0 && errno == EINTR);
|
|
}
|
|
|
|
void WakeupFd::reset() {
|
|
char tmpBuf[256];
|
|
while (true) {
|
|
int amount = read(m_pipeReadFd, tmpBuf, sizeof(tmpBuf));
|
|
if (amount < 0 && errno == EAGAIN) {
|
|
break;
|
|
} else if (amount <= 0) {
|
|
perror("error reading from internal wakeup pipe");
|
|
abort();
|
|
}
|
|
}
|
|
}
|