gfwleak/zhangyang-variable-monitor
Archived
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

temp

Browse Source
This commit is contained in:
zy
2023-11-17 01:59:41 -05:00
parent f47a39b2d7
commit 91f573d5f7
3 changed files with 5 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
source/module/monitor_kernel.c
View File

@@ -21,7 +21,7 @@ struct my_device_data {
static int device_open(struct inode *inode, struct file *file) {
struct my_device_data *data;
printk(KERN_INFO "%s: with pid %d\n", __FUNCTION__, current->pid);
printk(KERN_INFO "variable_monitor fun: %s with pid %d\n", __FUNCTION__, current->pid);
// save pid
data = kmalloc(sizeof(*data), GFP_KERNEL);
if (!data)
@@ -32,9 +32,9 @@ static int device_open(struct inode *inode, struct file *file) {
}
static int device_release(struct inode *inode, struct file *file) {
// printk(KERN_INFO "%s\n", __FUNCTION__);
// load pid
struct my_device_data *data = file->private_data;
printk(KERN_INFO "variable_monitor fun: %s with pid %d\n", __FUNCTION__, data->pid);
// clear watch with pid
clear_watch(data->pid);
kfree(data); // free data memory

2
source/module/monitor_kernel_lib.c
View File

@@ -161,7 +161,7 @@ int start_watch_variable(watch_arg warg) {
* @param pid
*/
void clear_watch(pid_t pid) {
printk(KERN_INFO "clear pid %d 's watch variable\n", pid);
printk(KERN_INFO "Clear pid: %d's watch variable\n", pid);
cancel_all_hrTimer(); // just in case
del_all_kwarg_by_pid(pid); // delete all kwarg with pid
free_page_list(pid); // free page with pid

4
testcase/helloworld.c
View File

@@ -22,7 +22,7 @@ int main()
.ptr = &temps[i],
.name = "temp",
.length_byte = sizeof(int),
.threshold = 150 + i,
.threshold = 110 + i,
.unsigned_flag = 0,
.greater_flag = 1,
.time_ns = 2000 + (i / 33) * 5000, // on hyper-v, 1us will block all system. 2us just fine, maybe 1us is too short for hyper-v
@@ -48,4 +48,4 @@ int main()
cancel_watch();
return 0;
}
}