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testthread.c
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testthread.c
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/**
Copyright (c) 2015 Maciej Nabozny
This file is part of KernelConnect project.
KernelConnect is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
KernelConnect is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with KernelConnect. If not, see <http://www.gnu.org/licenses/>.
*/
#include <testthread.h>
static int thread_count = 0;
char str[] = "Hello world!";
struct task_struct *test_init(void) {
struct task_struct *test_thread;
thread_count += 1;
test_thread = kthread_run(test_send, (void *)thread_count, "kernelConnect_test_%d", thread_count);
return test_thread;
}
int test_send(void *data) {
struct message *incoming;
struct message *msg;
int len;
while (!kthread_should_stop()) {
len = strlen(str);
printk(KERN_INFO "test_send: sending message (%d bytes, at %p)\n", len, str);
msg = message_new((void *) str, len);
message_send(msg);
printk(KERN_INFO "test_send: message has been sent (%lu bytes, at %p)\n", msg->size, msg->data);
incoming = message_get();
if (incoming != NULL) {
printk(KERN_INFO "test_send: received new message for pid: %d, data at: %p\n", incoming->pid, incoming->data);
}
msleep(5000);
}
// kthread_should_stop...
return 0;
}
void test_cleanup(struct task_struct *thread) {
kthread_stop(thread);
}