17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 534709573Sraf * Common Development and Distribution License (the "License"). 634709573Sraf * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 2134709573Sraf 227c478bd9Sstevel@tonic-gate /* 23e0cf54a5SRoger A. Faulkner * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 247c478bd9Sstevel@tonic-gate * Use is subject to license terms. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate 276a72db4aSBryan Cantrill /* 28*440a8a36SPatrick Mooney * Copyright 2020 Joyent, Inc. 296a72db4aSBryan Cantrill */ 306a72db4aSBryan Cantrill 317c478bd9Sstevel@tonic-gate #ifndef _SYS_TIMER_H 327c478bd9Sstevel@tonic-gate #define _SYS_TIMER_H 337c478bd9Sstevel@tonic-gate 347c478bd9Sstevel@tonic-gate #include <sys/types.h> 357c478bd9Sstevel@tonic-gate #include <sys/proc.h> 367c478bd9Sstevel@tonic-gate #include <sys/thread.h> 37*440a8a36SPatrick Mooney #include <sys/param.h> 387c478bd9Sstevel@tonic-gate 397c478bd9Sstevel@tonic-gate #ifdef __cplusplus 407c478bd9Sstevel@tonic-gate extern "C" { 417c478bd9Sstevel@tonic-gate #endif 427c478bd9Sstevel@tonic-gate 437c478bd9Sstevel@tonic-gate #ifdef _KERNEL 447c478bd9Sstevel@tonic-gate 4534709573Sraf #define _TIMER_MAX 32 46*440a8a36SPatrick Mooney /* 47*440a8a36SPatrick Mooney * Max timers per process. This is patchable via /etc/system and can be 48*440a8a36SPatrick Mooney * updated via kmdb. Sticking to positive powers of 2 is recommended. 49*440a8a36SPatrick Mooney * The default value is 4 * NCPU. Setting timer_max to a value below the 50*440a8a36SPatrick Mooney * default via /etc/system is ignored. 51*440a8a36SPatrick Mooney */ 52*440a8a36SPatrick Mooney extern int timer_max; 53*440a8a36SPatrick Mooney 54*440a8a36SPatrick Mooney #define _TIMER_ALLOC_INIT 8 /* initial size for p_itimer array */ 557c478bd9Sstevel@tonic-gate 567c478bd9Sstevel@tonic-gate /* 577c478bd9Sstevel@tonic-gate * Bit values for the it_lock field. 587c478bd9Sstevel@tonic-gate */ 597c478bd9Sstevel@tonic-gate #define ITLK_LOCKED 0x01 607c478bd9Sstevel@tonic-gate #define ITLK_WANTED 0x02 617c478bd9Sstevel@tonic-gate #define ITLK_REMOVE 0x04 627c478bd9Sstevel@tonic-gate 637c478bd9Sstevel@tonic-gate /* 647c478bd9Sstevel@tonic-gate * Bit values for the it_flags field. 657c478bd9Sstevel@tonic-gate */ 667c478bd9Sstevel@tonic-gate #define IT_SIGNAL 0x01 677c478bd9Sstevel@tonic-gate #define IT_PORT 0x02 /* use event port notification */ 687c478bd9Sstevel@tonic-gate 697c478bd9Sstevel@tonic-gate struct clock_backend; 707c478bd9Sstevel@tonic-gate 716a72db4aSBryan Cantrill struct itimer; 726a72db4aSBryan Cantrill typedef struct itimer itimer_t; 736a72db4aSBryan Cantrill 746a72db4aSBryan Cantrill struct itimer { 757c478bd9Sstevel@tonic-gate itimerspec_t it_itime; 767c478bd9Sstevel@tonic-gate hrtime_t it_hrtime; 777c478bd9Sstevel@tonic-gate ushort_t it_flags; 787c478bd9Sstevel@tonic-gate ushort_t it_lock; 796a72db4aSBryan Cantrill void *it_arg; /* clock backend-specific data */ 807c478bd9Sstevel@tonic-gate struct proc *it_proc; 816a72db4aSBryan Cantrill union { 826a72db4aSBryan Cantrill struct { 836a72db4aSBryan Cantrill sigqueue_t *__it_sigq; 846a72db4aSBryan Cantrill klwp_t *__it_lwp; 856a72db4aSBryan Cantrill } __proc; 866a72db4aSBryan Cantrill void *__it_frontend; 876a72db4aSBryan Cantrill } __data; /* timer frontend-specific data */ 887c478bd9Sstevel@tonic-gate kcondvar_t it_cv; 897c478bd9Sstevel@tonic-gate int it_blockers; 907c478bd9Sstevel@tonic-gate int it_pending; 917c478bd9Sstevel@tonic-gate int it_overrun; 927c478bd9Sstevel@tonic-gate struct clock_backend *it_backend; 936a72db4aSBryan Cantrill void (*it_fire)(itimer_t *); 947c478bd9Sstevel@tonic-gate kmutex_t it_mutex; 957c478bd9Sstevel@tonic-gate void *it_portev; /* port_kevent_t pointer */ 967c478bd9Sstevel@tonic-gate void *it_portsrc; /* port_source_t pointer */ 977c478bd9Sstevel@tonic-gate int it_portfd; /* port file descriptor */ 986a72db4aSBryan Cantrill }; 996a72db4aSBryan Cantrill 1006a72db4aSBryan Cantrill #define it_sigq __data.__proc.__it_sigq 1016a72db4aSBryan Cantrill #define it_lwp __data.__proc.__it_lwp 1026a72db4aSBryan Cantrill #define it_frontend __data.__it_frontend 1037c478bd9Sstevel@tonic-gate 1047c478bd9Sstevel@tonic-gate typedef struct clock_backend { 1057c478bd9Sstevel@tonic-gate struct sigevent clk_default; 1067c478bd9Sstevel@tonic-gate int (*clk_clock_settime)(timespec_t *); 1077c478bd9Sstevel@tonic-gate int (*clk_clock_gettime)(timespec_t *); 1087c478bd9Sstevel@tonic-gate int (*clk_clock_getres)(timespec_t *); 1096a72db4aSBryan Cantrill int (*clk_timer_create)(itimer_t *, void (*)(itimer_t *)); 1107c478bd9Sstevel@tonic-gate int (*clk_timer_settime)(itimer_t *, int, const struct itimerspec *); 1117c478bd9Sstevel@tonic-gate int (*clk_timer_gettime)(itimer_t *, struct itimerspec *); 1127c478bd9Sstevel@tonic-gate int (*clk_timer_delete)(itimer_t *); 1137c478bd9Sstevel@tonic-gate void (*clk_timer_lwpbind)(itimer_t *); 1147c478bd9Sstevel@tonic-gate } clock_backend_t; 1157c478bd9Sstevel@tonic-gate 1167c478bd9Sstevel@tonic-gate extern void clock_add_backend(clockid_t clock, clock_backend_t *backend); 1176a72db4aSBryan Cantrill extern clock_backend_t *clock_get_backend(clockid_t clock); 1187c478bd9Sstevel@tonic-gate 1197c478bd9Sstevel@tonic-gate extern void timer_lwpbind(); 1207c478bd9Sstevel@tonic-gate 1217c478bd9Sstevel@tonic-gate extern void timer_func(sigqueue_t *); 1227c478bd9Sstevel@tonic-gate extern void timer_exit(void); 1237c478bd9Sstevel@tonic-gate extern void timer_lwpexit(void); 1247c478bd9Sstevel@tonic-gate extern clock_t hzto(struct timeval *); 1257c478bd9Sstevel@tonic-gate extern clock_t timespectohz(timespec_t *, timespec_t); 126f635d46aSqiao extern int64_t timespectohz64(timespec_t *); 1277c478bd9Sstevel@tonic-gate extern int itimerspecfix(timespec_t *); 1287c478bd9Sstevel@tonic-gate extern void timespecadd(timespec_t *, timespec_t *); 1297c478bd9Sstevel@tonic-gate extern void timespecsub(timespec_t *, timespec_t *); 1307c478bd9Sstevel@tonic-gate extern void timespecfix(timespec_t *); 1317c478bd9Sstevel@tonic-gate extern int xgetitimer(uint_t, struct itimerval *, int); 1327c478bd9Sstevel@tonic-gate extern int xsetitimer(uint_t, struct itimerval *, int); 133e0cf54a5SRoger A. Faulkner extern void delete_itimer_realprof(void); 1347c478bd9Sstevel@tonic-gate 1357c478bd9Sstevel@tonic-gate #define timerspecisset(tvp) ((tvp)->tv_sec || (tvp)->tv_nsec) 1367c478bd9Sstevel@tonic-gate #define timerspeccmp(tvp, uvp) (((tvp)->tv_sec - (uvp)->tv_sec) ? \ 1377c478bd9Sstevel@tonic-gate ((tvp)->tv_sec - (uvp)->tv_sec):((tvp)->tv_nsec - (uvp)->tv_nsec)) 1387c478bd9Sstevel@tonic-gate #define timerspecclear(tvp) ((tvp)->tv_sec = (tvp)->tv_nsec = 0) 1397c478bd9Sstevel@tonic-gate 1407c478bd9Sstevel@tonic-gate struct oldsigevent { 1417c478bd9Sstevel@tonic-gate /* structure definition prior to notification attributes member */ 1427c478bd9Sstevel@tonic-gate int _notify; 1437c478bd9Sstevel@tonic-gate union { 1447c478bd9Sstevel@tonic-gate int _signo; 1457c478bd9Sstevel@tonic-gate void (*_notify_function)(union sigval); 1467c478bd9Sstevel@tonic-gate } _un; 1477c478bd9Sstevel@tonic-gate union sigval _value; 1487c478bd9Sstevel@tonic-gate }; 1497c478bd9Sstevel@tonic-gate 1507c478bd9Sstevel@tonic-gate #if defined(_SYSCALL32) 1517c478bd9Sstevel@tonic-gate 1527c478bd9Sstevel@tonic-gate struct oldsigevent32 { 1537c478bd9Sstevel@tonic-gate int32_t _notify; 1547c478bd9Sstevel@tonic-gate union { 1557c478bd9Sstevel@tonic-gate int32_t _signo; 1567c478bd9Sstevel@tonic-gate caddr32_t _notify_function; 1577c478bd9Sstevel@tonic-gate } _un; 1587c478bd9Sstevel@tonic-gate union sigval32 _value; 1597c478bd9Sstevel@tonic-gate }; 1607c478bd9Sstevel@tonic-gate 1617c478bd9Sstevel@tonic-gate #endif /* _SYSCALL32 */ 1627c478bd9Sstevel@tonic-gate #endif /* _KERNEL */ 1637c478bd9Sstevel@tonic-gate 1647c478bd9Sstevel@tonic-gate #ifdef __cplusplus 1657c478bd9Sstevel@tonic-gate } 1667c478bd9Sstevel@tonic-gate #endif 1677c478bd9Sstevel@tonic-gate 1687c478bd9Sstevel@tonic-gate #endif /* _SYS_TIMER_H */ 169