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If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner] .TH door_bind 3C "22 Mar 2005" "SunOS 5.11" "Standard C Library Functions" .SH NAME door_bind, door_unbind \- bind or unbind the current thread with the door server pool .SH SYNOPSIS .LP .nf \fBcc\fR \fB-mt\fR [ \fIflag\fR... ] \fIfile\fR... [ \fIlibrary\fR... ] #include \fBint\fR \fBdoor_bind\fR(\fBint\fR \fIdid\fR); .fi .LP .nf \fBint\fR \fBdoor_unbind\fR(\fBvoid\fR); .fi .SH DESCRIPTION .sp .LP The \fBdoor_bind()\fR function associates the current thread with a door server pool. A door server pool is a private pool of server threads that is available to serve door invocations associated with the door \fIdid\fR. .sp .LP The \fBdoor_unbind()\fR function breaks the association of \fBdoor_bind()\fR by removing any private door pool binding that is associated with the current thread. .sp .LP Normally, door server threads are placed in a global pool of available threads that invocations on any door can use to dispatch a door invocation. A door that has been created with \fBDOOR_PRIVATE\fR only uses server threads that have been associated with the door by \fBdoor_bind()\fR. It is therefore necessary to bind at least one server thread to doors created with \fBDOOR_PRIVATE\fR. .sp .LP The server thread create function, \fBdoor_server_create()\fR, is initially called by the system during a \fBdoor_create()\fR operation. See \fBdoor_server_create\fR(3C) and \fBdoor_create\fR(3C). .sp .LP The current thread is added to the private pool of server threads associated with a door during the next \fBdoor_return()\fR (that has been issued by the current thread after an associated \fBdoor_bind()\fR). See \fBdoor_return\fR(3C). A server thread performing a \fBdoor_bind()\fR on a door that is already bound to a different door performs an implicit \fBdoor_unbind()\fR of the previous door. .sp .LP If a process containing threads that have been bound to a door calls \fBfork\fR(2), the threads in the child process will be bound to an invalid door, and any calls to \fBdoor_return\fR(3C) will result in an error. .SH RETURN VALUES .sp .LP Upon successful completion, a \fB0\fR is returned. Otherwise, \fB\(mi1\fR is returned and \fBerrno\fR is set to indicate the error. .SH ERRORS .sp .LP The \fBdoor_bind()\fR and \fBdoor_unbind()\fR functions fail if: .sp .ne 2 .mk .na \fB\fBEBADF\fR\fR .ad .RS 10n .rt The \fIdid\fR argument is not a valid door. .RE .sp .ne 2 .mk .na \fB\fBEBADF\fR\fR .ad .RS 10n .rt The \fBdoor_unbind()\fR function was called by a thread that is currently not bound. .RE .sp .ne 2 .mk .na \fB\fBEINVAL\fR\fR .ad .RS 10n .rt \fIdid\fR was not created with the \fBDOOR_PRIVATE\fR attribute. .RE .SH EXAMPLES .LP \fBExample 1 \fRUse \fBdoor_bind()\fR to create private server pools for two doors. .sp .LP The following example shows the use of \fBdoor_bind()\fR to create private server pools for two doors, \fBd1\fR and \fBd2\fR. Function \fBmy_create()\fR is called when a new server thread is needed; it creates a thread running function, \fBmy_server_create()\fR, which binds itself to one of the two doors. .sp .in +2 .nf #include #include #include thread_key_t door_key; int d1 = -1; int d2 = -1; cond_t cv; /* statically initialized to zero */ mutex_t lock; /* statically initialized to zero */ extern void foo(void *, char *, size_t, door_desc_t *, uint_t); extern void bar(void *, char *, size_t, door_desc_t *, uint_t); static void * my_server_create(void *arg) { /* wait for d1 & d2 to be initialized */ mutex_lock(&lock); while (d1 == -1 || d2 == -1) cond_wait(&cv, &lock); mutex_unlock(&lock); if (arg == (void *)foo){ /* bind thread with pool associated with d1 */ thr_setspecific(door_key, (void *)foo); if (door_bind(d1) < 0) { perror("door_bind"); exit (-1); } } else if (arg == (void *)bar) { /* bind thread with pool associated with d2 */ thr_setspecific(door_key, (void *)bar); if (door_bind(d2) < 0) { /* bind thread to d2 thread pool */ perror("door_bind"); exit (-1); } } pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL); door_return(NULL, 0, NULL, 0); /* Wait for door invocation */ } static void my_create(door_info_t *dip) { /* Pass the door identity information to create function */ thr_create(NULL, 0, my_server_create, (void *)dip->di_proc, THR_BOUND | THR_DETACHED, NULL); } main() { (void) door_server_create(my_create); if (thr_keycreate(&door_key, NULL) != 0) { perror("thr_keycreate"); exit(1); } mutex_lock(&lock); d1 = door_create(foo, NULL, DOOR_PRIVATE); /* Private pool */ d2 = door_create(bar, NULL, DOOR_PRIVATE); /* Private pool */ cond_signal(&cv); mutex_unlock(&lock); while (1) pause(); } .fi .in -2 .SH ATTRIBUTES .sp .LP See \fBattributes\fR(5) for descriptions of the following attributes: .sp .sp .TS tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) . ATTRIBUTE TYPEATTRIBUTE VALUE _ Architectureall _ Interface StabilityStable _ MT-LevelSafe .TE .SH SEE ALSO .sp .LP \fBfork\fR(2),\fBdoor_create\fR(3C), \fBdoor_return\fR(3C), \fBdoor_server_create\fR(3C), \fBattributes\fR(5)