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support times

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This commit is contained in:
Tomoki Shirasawa
2016-02-18 13:14:18 +09:00
parent a997af71be
commit eba2be8a35
10 changed files with 159 additions and 3 deletions
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11
kernel/include/process.h
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@@ -347,7 +347,7 @@ typedef void pgio_func_t(void *arg);
* special "init" process */
struct process {
struct list_head hash_list;
mcs_rwlock_lock_t update_lock; // lock for parent, status, ...?
mcs_rwlock_lock_t update_lock; // lock for parent, status, cpu time...
// process vm
struct process_vm *vm;
@@ -431,6 +431,10 @@ struct process {
ihk_spinlock_t mckfd_lock;
struct mckfd *mckfd;
// cpu time (summary)
struct timespec stime;
struct timespec utime;
};
void hold_thread(struct thread *ftn);
@@ -518,6 +522,11 @@ struct thread {
unsigned long *ptrace_debugreg; /* debug registers for ptrace */
struct sig_pending *ptrace_recvsig;
struct sig_pending *ptrace_sendsig;
// cpu time
struct timespec stime;
struct timespec utime;
struct timespec btime;
};
struct process_vm {

3
kernel/include/syscall.h
View File

@@ -337,4 +337,7 @@ struct tod_data_s {
};
extern struct tod_data_s tod_data; /* residing in arch-dependent file */
void reset_cputime();
void set_cputime(int mode);
#endif

22
kernel/include/time.h
View File

@@ -53,5 +53,27 @@ struct timezone
int tz_dsttime; /* Nonzero if DST is ever in effect. */
};
static inline void
ts_add(struct timespec *ats, const struct timespec *bts)
{
ats->tv_sec += bts->tv_sec;
ats->tv_nsec += bts->tv_nsec;
while(ats->tv_nsec >= 1000000000){
ats->tv_sec++;
ats->tv_nsec -= 1000000000;
}
}
static inline void
ts_sub(struct timespec *ats, const struct timespec *bts)
{
ats->tv_sec -= bts->tv_sec;
ats->tv_nsec -= bts->tv_nsec;
while(ats->tv_nsec < 0){
ats->tv_sec--;
ats->tv_nsec += 1000000000;
}
}
#endif // __TIME_H