Date: Tue, 10 Dec 2019 21:58:30 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r355600 - in head: share/man/man9 sys/kern sys/sys Message-ID: <201912102158.xBALwUF9075354@repo.freebsd.org>
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Author: jhb Date: Tue Dec 10 21:58:30 2019 New Revision: 355600 URL: https://svnweb.freebsd.org/changeset/base/355600 Log: Add a callout_func_t typedef for functions used with callout_*(). This typedef is the same as timeout_t except that it is in the callout namespace and header. Use this typedef in various places of the callout implementation that were either using the raw type or timeout_t. While here, add <sys/callout.h> to the manpage. Reviewed by: kib, imp MFC after: 1 month Differential Revision: https://reviews.freebsd.org/D22751 Modified: head/share/man/man9/timeout.9 head/sys/kern/kern_timeout.c head/sys/sys/_callout.h Modified: head/share/man/man9/timeout.9 ============================================================================== --- head/share/man/man9/timeout.9 Tue Dec 10 21:56:44 2019 (r355599) +++ head/share/man/man9/timeout.9 Tue Dec 10 21:58:30 2019 (r355600) @@ -29,7 +29,7 @@ .\" .\" $FreeBSD$ .\" -.Dd July 27, 2016 +.Dd December 10, 2019 .Dt TIMEOUT 9 .Os .Sh NAME @@ -62,8 +62,10 @@ .Nd execute a function after a specified length of time .Sh SYNOPSIS .In sys/types.h +.In sys/callout.h .In sys/systm.h .Bd -literal +typedef void callout_func_t (void *); typedef void timeout_t (void *); .Ed .Ft int @@ -71,7 +73,7 @@ typedef void timeout_t (void *); .Ft void .Fn callout_deactivate "struct callout *c" .Ft int -.Fn callout_async_drain "struct callout *c" "timeout_t *drain" +.Fn callout_async_drain "struct callout *c" "callout_func_t *drain" .Ft int .Fn callout_drain "struct callout *c" .Ft void @@ -90,19 +92,24 @@ struct callout_handle handle = CALLOUT_HANDLE_INITIALI .Ft int .Fn callout_pending "struct callout *c" .Ft int -.Fn callout_reset "struct callout *c" "int ticks" "timeout_t *func" "void *arg" +.Fo callout_reset +.Fa "struct callout *c" +.Fa "int ticks" +.Fa "callout_func_t *func" +.Fa "void *arg" +.Fc .Ft int .Fo callout_reset_curcpu .Fa "struct callout *c" .Fa "int ticks" -.Fa "timeout_t *func" +.Fa "callout_func_t *func" .Fa "void *arg" .Fc .Ft int .Fo callout_reset_on .Fa "struct callout *c" .Fa "int ticks" -.Fa "timeout_t *func" +.Fa "callout_func_t *func" .Fa "void *arg" .Fa "int cpu" .Fc @@ -111,7 +118,7 @@ struct callout_handle handle = CALLOUT_HANDLE_INITIALI .Fa "struct callout *c" .Fa "sbintime_t sbt" .Fa "sbintime_t pr" -.Fa "timeout_t *func" +.Fa "callout_func_t *func" .Fa "void *arg" .Fa "int flags" .Fc @@ -120,7 +127,7 @@ struct callout_handle handle = CALLOUT_HANDLE_INITIALI .Fa "struct callout *c" .Fa "sbintime_t sbt" .Fa "sbintime_t pr" -.Fa "timeout_t *func" +.Fa "callout_func_t *func" .Fa "void *arg" .Fa "int flags" .Fc @@ -129,7 +136,7 @@ struct callout_handle handle = CALLOUT_HANDLE_INITIALI .Fa "struct callout *c" .Fa "sbintime_t sbt" .Fa "sbintime_t pr" -.Fa "timeout_t *func" +.Fa "callout_func_t *func" .Fa "void *arg" .Fa "int cpu" .Fa "int flags" Modified: head/sys/kern/kern_timeout.c ============================================================================== --- head/sys/kern/kern_timeout.c Tue Dec 10 21:56:44 2019 (r355599) +++ head/sys/kern/kern_timeout.c Tue Dec 10 21:58:30 2019 (r355600) @@ -145,11 +145,11 @@ static u_int __read_mostly callwheelmask; */ struct cc_exec { struct callout *cc_curr; - void (*cc_drain)(void *); + callout_func_t *cc_drain; void *cc_last_func; void *cc_last_arg; #ifdef SMP - void (*ce_migration_func)(void *); + callout_func_t *ce_migration_func; void *ce_migration_arg; sbintime_t ce_migration_time; sbintime_t ce_migration_prec; @@ -656,7 +656,7 @@ softclock_call_cc(struct callout *c, struct callout_cp int direct) { struct rm_priotracker tracker; - void (*c_func)(void *); + callout_func_t *c_func, *drain; void *c_arg; struct lock_class *class; struct lock_object *c_lock; @@ -664,7 +664,7 @@ softclock_call_cc(struct callout *c, struct callout_cp int c_iflags; #ifdef SMP struct callout_cpu *new_cc; - void (*new_func)(void *); + callout_func_t *new_func; void *new_arg; int flags, new_cpu; sbintime_t new_prec, new_time; @@ -673,7 +673,7 @@ softclock_call_cc(struct callout *c, struct callout_cp sbintime_t sbt1, sbt2; struct timespec ts2; static sbintime_t maxdt = 2 * SBT_1MS; /* 2 msec */ - static timeout_t *lastfunc; + static callout_func_t *lastfunc; #endif KASSERT((c->c_iflags & CALLOUT_PENDING) == CALLOUT_PENDING, @@ -768,8 +768,6 @@ skip: KASSERT(cc_exec_curr(cc, direct) == c, ("mishandled cc_curr")); cc_exec_curr(cc, direct) = NULL; if (cc_exec_drain(cc, direct)) { - void (*drain)(void *); - drain = cc_exec_drain(cc, direct); cc_exec_drain(cc, direct) = NULL; CC_UNLOCK(cc); @@ -1031,7 +1029,7 @@ callout_when(sbintime_t sbt, sbintime_t precision, int */ int callout_reset_sbt_on(struct callout *c, sbintime_t sbt, sbintime_t prec, - void (*ftn)(void *), void *arg, int cpu, int flags) + callout_func_t *ftn, void *arg, int cpu, int flags) { sbintime_t to_sbt, precision; struct callout_cpu *cc; @@ -1190,7 +1188,7 @@ callout_schedule(struct callout *c, int to_ticks) } int -_callout_stop_safe(struct callout *c, int flags, void (*drain)(void *)) +_callout_stop_safe(struct callout *c, int flags, callout_func_t *drain) { struct callout_cpu *cc, *old_cc; struct lock_class *class; Modified: head/sys/sys/_callout.h ============================================================================== --- head/sys/sys/_callout.h Tue Dec 10 21:56:44 2019 (r355599) +++ head/sys/sys/_callout.h Tue Dec 10 21:58:30 2019 (r355600) @@ -48,6 +48,8 @@ LIST_HEAD(callout_list, callout); SLIST_HEAD(callout_slist, callout); TAILQ_HEAD(callout_tailq, callout); +typedef void callout_func_t(void *); + struct callout { union { LIST_ENTRY(callout) le; @@ -57,7 +59,7 @@ struct callout { sbintime_t c_time; /* ticks to the event */ sbintime_t c_precision; /* delta allowed wrt opt */ void *c_arg; /* function argument */ - void (*c_func)(void *); /* function to call */ + callout_func_t *c_func; /* function to call */ struct lock_object *c_lock; /* lock to handle */ short c_flags; /* User State */ short c_iflags; /* Internal State */
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