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Diffstat (limited to 'source/module/monitor_timer.h')
| -rw-r--r-- | source/module/monitor_timer.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/source/module/monitor_timer.h b/source/module/monitor_timer.h new file mode 100644 index 0000000..e5b4fa2 --- /dev/null +++ b/source/module/monitor_timer.h @@ -0,0 +1,73 @@ +#include <linux/hrtimer.h> +// #include <linux/kprobes.h> +// #include <linux/ktime.h> +// #include <linux/list.h> +// // #include <linux/slab.h> /* for kmalloc */ +// #include <linux/string.h> + +// #include <asm/uaccess.h> +// #include <linux/cdev.h> +// #include <linux/highmem.h> +// #include <linux/sched.h> +// #include <linux/sched/loadavg.h> /* for avenrun, LOAD_* */ +// #include <linux/sched/mm.h> +// #include <linux/sched/signal.h> +// #include <linux/stacktrace.h> /* for stack_trace_print */ + +#define MAX_TIMER_NUM (128) // max timer number +#define TIMER_MAX_WATCH_NUM (32) // A timer max watch number at once time +#define MAX_NAME_LEN (15) // max name length + +typedef struct { + pid_t task_id; // current process id + char name[MAX_NAME_LEN + 1]; // name + void *ptr; // virtual address + int length_byte; // byte + long long threshold; // threshold value + unsigned char unsigned_flag; // unsigned flag (true: unsigned, false: signed) + unsigned char greater_flag; // reverse flag (true: >, false: <) + unsigned long time_ns; // timer interval (ns) +} watch_arg; + +typedef struct { + pid_t task_id; // current process id + char name[MAX_NAME_LEN + 2]; // name, last char automatically add '\0' + void *kptr; // kernel address + offset + int length_byte; // byte + long long threshold; // threshold value + unsigned char unsigned_flag; // unsigned flag (true: unsigned, false: signed) + unsigned char greater_flag; // reverse flag (true: >, false: <) +} kernel_watch_arg; + +typedef struct { + unsigned long long time_ns; // hrTimer time interval (ns) + struct hrtimer hr_timer; // hrTimer + ktime_t kt; // hrTimer time + unsigned sentinel; // sentinel + kernel_watch_arg + k_watch_args[TIMER_MAX_WATCH_NUM]; // all watched kernel_watch_arg +} kernel_watch_timer; + +// Global variable +kernel_watch_timer kernel_wtimer_list[MAX_TIMER_NUM] = { + 0}; // all kernel_watch_timer +int kernel_wtimer_num = 0; // current kernel_watch_timer number + +EXPORT_SYMBOL(kernel_wtimer_list); // export kernel_watch_timer_list +EXPORT_SYMBOL(kernel_wtimer_num); // export kernel_watch_timer_num + +unsigned char del_all_kwarg_by_pid(pid_t pid); + +#define TIMER_START(timer) \ + (hrtimer_start(&timer->hr_timer, timer->kt, HRTIMER_MODE_REL)) +#define TIMER_CANCEL(timer) (hrtimer_cancel(&timer->hr_timer)) + +// for timer +kernel_watch_timer *get_timer(unsigned long long time_ns); +unsigned char timer_add_watch(kernel_watch_timer *timer, + kernel_watch_arg k_watch_arg); +unsigned char timer_del_watch_by_pid(kernel_watch_timer *timer, pid_t pid); + +enum hrtimer_restart check_variable_cb(struct hrtimer *timer); // callback +void start_all_hrTimer(void); +void cancel_all_hrTimer(void);
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