diff options
Diffstat (limited to 'signal.c')
| -rw-r--r-- | signal.c | 51 |
1 files changed, 51 insertions, 0 deletions
@@ -34,6 +34,9 @@ #include <dirent.h> #include <signal.h> #include "config.h" +#if HAVE_SYS_TIME +#include <sys/time.h> +#endif #include "lib.h" #include "gc.h" #include "signal.h" @@ -156,6 +159,14 @@ void sig_init(void) reg_var(intern(lit("sig-pwr"), user_package), num_fast(SIGPWR)); #endif +#if HAVE_ITIMER + reg_var(intern(lit("itimer-real"), user_package), num_fast(ITIMER_REAL)); + reg_var(intern(lit("itimer-virtual"), user_package), num_fast(ITIMER_VIRTUAL)); + reg_var(intern(lit("itimer-prov"), user_package), num_fast(ITIMER_PROF)); + reg_fun(intern(lit("getitimer"), user_package), func_n1(getitimer_wrap)); + reg_fun(intern(lit("setitimer"), user_package), func_n3(setitimer_wrap)); +#endif + reg_fun(intern(lit("set-sig-handler"), user_package), func_n2(set_sig_handler)); reg_fun(intern(lit("get-sig-handler"), user_package), func_n1(get_sig_handler)); reg_fun(intern(lit("sig-check"), user_package), func_n0(sig_check)); @@ -332,3 +343,43 @@ int sig_mask(int how, const sigset_t *set, sigset_t *oldset) *oldset = sig_blocked_cache; return 0; } + +#if HAVE_ITIMER + +static val tv_to_usec(val sec, val usec) +{ + const val meg = num_fast(1000000); + return plus(mul(sec, meg), usec); +} + +val getitimer_wrap(val which) +{ + struct itimerval itv; + + if (getitimer(c_num(which), &itv) < 0) + return nil; + + return list(tv_to_usec(num(itv.it_interval.tv_sec), num(itv.it_interval.tv_usec)), + tv_to_usec(num(itv.it_value.tv_sec), num(itv.it_value.tv_usec)), + nao); +} + +val setitimer_wrap(val which, val interval, val currval) +{ + struct itimerval itn, itv; + const val meg = num_fast(1000000); + + itn.it_interval.tv_sec = c_num(trunc(interval, meg)); + itn.it_interval.tv_usec = c_num(mod(interval, meg)); + itn.it_value.tv_sec = c_num(trunc(currval, meg)); + itn.it_value.tv_usec = c_num(mod(currval, meg)); + + if (setitimer(c_num(which), &itn, &itv) < 0) + return nil; + + return list(tv_to_usec(num(itv.it_interval.tv_sec), num(itv.it_interval.tv_usec)), + tv_to_usec(num(itv.it_value.tv_sec), num(itv.it_value.tv_usec)), + nao); +} + +#endif |