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libc: Add support for POSIX timers

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apio 2024-01-05 22:15:06 +01:00
parent 17b44a8ce6
commit 3231a1296d
Signed by: apio
GPG Key ID: B8A7D06E42258954
2 changed files with 39 additions and 0 deletions
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15
libc/include/time.h
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@ -4,8 +4,11 @@
#define _TIME_H #define _TIME_H
#include <bits/clockid.h> #include <bits/clockid.h>
#include <bits/itimer.h>
#include <bits/sigevent.h>
#include <bits/struct_tm.h> #include <bits/struct_tm.h>
#include <bits/timespec.h> #include <bits/timespec.h>
#include <sys/types.h>
typedef long int clock_t; typedef long int clock_t;
@ -58,6 +61,18 @@ extern "C"
/* Estimate the CPU time used by a process. */ /* Estimate the CPU time used by a process. */
clock_t clock(void); clock_t clock(void);
/* Create a new POSIX timer. */
int timer_create(clockid_t clockid, struct sigevent* sevp, timer_t* timerid);
/* Get the current time remaining for a POSIX timer. */
int timer_gettime(timer_t timerid, struct itimerspec* value);
/* Set the time remaining and interval for a POSIX timer. */
int timer_settime(timer_t timerid, int flags, const struct itimerspec* new_value, struct itimerspec* old_value);
/* Delete an existing POSIX timer. */
int timer_delete(timer_t timerid);
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif

24
libc/src/time.cpp
View File

@ -206,4 +206,28 @@ extern "C"
long rc = syscall(SYS_setitimer, which, new_timer, old_timer); long rc = syscall(SYS_setitimer, which, new_timer, old_timer);
__errno_return(rc, int); __errno_return(rc, int);
} }
int timer_create(clockid_t clockid, struct sigevent* sevp, timer_t* timerid)
{
long rc = syscall(SYS_timer_create, clockid, sevp, timerid);
__errno_return(rc, int);
}
int timer_gettime(timer_t timerid, struct itimerspec* value)
{
long rc = syscall(SYS_timer_gettime, timerid, value);
__errno_return(rc, int);
}
int timer_settime(timer_t timerid, int flags, const struct itimerspec* new_value, struct itimerspec* old_value)
{
long rc = syscall(SYS_timer_settime, timerid, flags, new_value, old_value);
__errno_return(rc, int);
}
int timer_delete(timer_t timerid)
{
long rc = syscall(SYS_timer_delete, timerid);
__errno_return(rc, int);
}
} }