X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/1c79356b52d46aa6b508fb032f5ae709b1f2897b..316670eb35587141e969394ae8537d66b9211e80:/osfmk/ipc/ipc_mqueue.h diff --git a/osfmk/ipc/ipc_mqueue.h b/osfmk/ipc/ipc_mqueue.h index 85e0b1d92..f452f7079 100644 --- a/osfmk/ipc/ipc_mqueue.h +++ b/osfmk/ipc/ipc_mqueue.h @@ -1,23 +1,29 @@ /* - * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2007 Apple Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. + * This file contains Original Code and/or Modifications of Original Code + * as defined in and that are subject to the Apple Public Source License + * Version 2.0 (the 'License'). You may not use this file except in + * compliance with the License. The rights granted to you under the License + * may not be used to create, or enable the creation or redistribution of, + * unlawful or unlicensed copies of an Apple operating system, or to + * circumvent, violate, or enable the circumvention or violation of, any + * terms of an Apple operating system software license agreement. * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * Please obtain a copy of the License at + * http://www.opensource.apple.com/apsl/ and read it before using this file. + * + * The Original Code and all software distributed under the License are + * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. + * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. + * Please see the License for the specific language governing rights and + * limitations under the License. * - * @APPLE_LICENSE_HEADER_END@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ @@ -66,12 +72,16 @@ #include #include +#include +#include #include #include #include #include +#include + typedef struct ipc_mqueue { union { struct { @@ -79,10 +89,14 @@ typedef struct ipc_mqueue { struct ipc_kmsg_queue messages; mach_port_msgcount_t msgcount; mach_port_msgcount_t qlimit; - mach_port_seqno_t seqno; + mach_port_seqno_t seqno; + mach_port_name_t receiver_name; boolean_t fullwaiters; } port; - struct wait_queue_sub set_queue; + struct { + struct wait_queue_set set_queue; + mach_port_name_t local_name; + } pset; } data; } *ipc_mqueue_t; @@ -93,11 +107,14 @@ typedef struct ipc_mqueue { #define imq_msgcount data.port.msgcount #define imq_qlimit data.port.qlimit #define imq_seqno data.port.seqno +#define imq_receiver_name data.port.receiver_name #define imq_fullwaiters data.port.fullwaiters -#define imq_set_queue data.set_queue -#define imq_setlinks data.set_queue.wqs_sublinks -#define imq_is_set(mq) wait_queue_is_sub(&(mq)->imq_set_queue) +#define imq_set_queue data.pset.set_queue +#define imq_setlinks data.pset.set_queue.wqs_setlinks +#define imq_preposts data.pset.set_queue.wqs_preposts +#define imq_local_name data.pset.local_name +#define imq_is_set(mq) wait_queue_is_set(&(mq)->imq_set_queue) #define imq_lock(mq) wait_queue_lock(&(mq)->imq_wait_queue) #define imq_lock_try(mq) wait_queue_lock_try(&(mq)->imq_wait_queue) @@ -105,12 +122,13 @@ typedef struct ipc_mqueue { #define imq_held(mq) wait_queue_held(&(mq)->imq_wait_queue) #define imq_full(mq) ((mq)->imq_msgcount >= (mq)->imq_qlimit) +#define imq_full_kernel(mq) ((mq)->imq_msgcount >= MACH_PORT_QLIMIT_KERNEL) extern int ipc_mqueue_full; -extern int ipc_mqueue_rcv; +// extern int ipc_mqueue_rcv; -#define IPC_MQUEUE_FULL (event_t)&ipc_mqueue_full -#define IPC_MQUEUE_RECEIVE (event_t)&ipc_mqueue_rcv +#define IPC_MQUEUE_FULL CAST_EVENT64_T(&ipc_mqueue_full) +#define IPC_MQUEUE_RECEIVE NO_EVENT64 /* * Exported interfaces @@ -118,25 +136,51 @@ extern int ipc_mqueue_rcv; /* Initialize a newly-allocated message queue */ extern void ipc_mqueue_init( - ipc_mqueue_t mqueue, - boolean_t is_set); + ipc_mqueue_t mqueue, + boolean_t is_set); -/* Move messages from one queue to another */ -extern void ipc_mqueue_move( - ipc_mqueue_t dest, - ipc_mqueue_t source, - ipc_port_t port); +/* destroy an mqueue */ +extern void ipc_mqueue_destroy( + ipc_mqueue_t mqueue); /* Wake up receivers waiting in a message queue */ extern void ipc_mqueue_changed( ipc_mqueue_t mqueue); +/* Add the specific mqueue as a member of the set */ +extern kern_return_t ipc_mqueue_add( + ipc_mqueue_t mqueue, + ipc_mqueue_t set_mqueue, + wait_queue_link_t wql); + +/* Check to see if mqueue is member of set_mqueue */ +extern boolean_t ipc_mqueue_member( + ipc_mqueue_t mqueue, + ipc_mqueue_t set_mqueue); + +/* Remove an mqueue from a specific set */ +extern kern_return_t ipc_mqueue_remove( + ipc_mqueue_t mqueue, + ipc_mqueue_t set_mqueue, + wait_queue_link_t *wqlp); + +/* Remove an mqueue from all sets */ +extern void ipc_mqueue_remove_from_all( + ipc_mqueue_t mqueue, + queue_t links); + +/* Remove all the members of the specifiied set */ +extern void ipc_mqueue_remove_all( + ipc_mqueue_t mqueue, + queue_t links); + /* Send a message to a port */ extern mach_msg_return_t ipc_mqueue_send( ipc_mqueue_t mqueue, ipc_kmsg_t kmsg, mach_msg_option_t option, - mach_msg_timeout_t timeout); + mach_msg_timeout_t timeout_val, + spl_t s); /* Deliver message to message queue or waiting receiver */ extern void ipc_mqueue_post( @@ -148,17 +192,33 @@ extern void ipc_mqueue_receive( ipc_mqueue_t mqueue, mach_msg_option_t option, mach_msg_size_t max_size, - mach_msg_timeout_t timeout, + mach_msg_timeout_t timeout_val, int interruptible); +/* Receive a message from a message queue using a specified thread */ +extern wait_result_t ipc_mqueue_receive_on_thread( + ipc_mqueue_t mqueue, + mach_msg_option_t option, + mach_msg_size_t max_size, + mach_msg_timeout_t rcv_timeout, + int interruptible, + thread_t thread); + /* Continuation routine for message receive */ -extern void ipc_mqueue_receive_continue(void); +extern void ipc_mqueue_receive_continue( + void *param, + wait_result_t wresult); /* Select a message from a queue and try to post it to ourself */ -extern void ipc_mqueue_select( +extern void ipc_mqueue_select_on_thread( ipc_mqueue_t mqueue, mach_msg_option_t option, - mach_msg_size_t max_size); + mach_msg_size_t max_size, + thread_t thread); + +/* Peek into a messaqe queue to see if there are messages */ +extern unsigned ipc_mqueue_peek( + ipc_mqueue_t mqueue); /* Clear a message count reservation */ extern void ipc_mqueue_release_msgcount(