1/* 2 * Copyright (c) 2007-2012 Apple Inc. All rights reserved. 3 * 4 * @APPLE_APACHE_LICENSE_HEADER_START@ 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 * 18 * @APPLE_APACHE_LICENSE_HEADER_END@ 19 */ 20 21#ifndef __LAUNCH_INTERNAL_H__ 22#define __LAUNCH_INTERNAL_H__ 23 24#include "vproc_priv.h" 25 26#include <paths.h> 27#include <dispatch/dispatch.h> 28#include <pthread.h> 29 30#if __has_include(<os/alloc_once_private.h>) 31#include <os/alloc_once_private.h> 32#if defined(OS_ALLOC_ONCE_KEY_LIBLAUNCH) 33#define _LIBLAUNCH_HAS_ALLOC_ONCE 1 34#endif 35#endif 36 37typedef struct _launch *launch_t; 38 39struct launch_globals_s { 40 // liblaunch.c 41 pthread_once_t lc_once; 42 pthread_mutex_t lc_mtx; 43 launch_t l; 44 launch_data_t async_resp; 45 46 launch_t in_flight_msg_recv_client; 47 48 int64_t s_am_embedded_god; 49 50 // libvproc.c 51 dispatch_queue_t _vproc_gone2zero_queue; 52 _vproc_transaction_callout _vproc_gone2zero_callout; 53 void *_vproc_gone2zero_ctx; 54 55 dispatch_once_t _vproc_transaction_once; 56 uint64_t _vproc_transaction_enabled; 57 dispatch_queue_t _vproc_transaction_queue; 58 int64_t _vproc_transaction_cnt; 59}; 60typedef struct launch_globals_s *launch_globals_t; 61 62void _launch_init_globals(launch_globals_t globals); 63 64#if !_LIBLAUNCH_HAS_ALLOC_ONCE 65launch_globals_t _launch_globals_impl(void); 66#endif 67 68__attribute__((__pure__)) 69static inline launch_globals_t 70_launch_globals(void) { 71#if _LIBLAUNCH_HAS_ALLOC_ONCE 72 return (launch_globals_t)os_alloc_once(OS_ALLOC_ONCE_KEY_LIBLAUNCH, 73 sizeof(struct launch_globals_s), 74 (void*)&_launch_init_globals); 75#else 76 return _launch_globals_impl(); 77#endif 78} 79 80#pragma GCC visibility push(default) 81 82#define LAUNCHD_DB_PREFIX "/private/var/db/launchd.db" 83#define LAUNCHD_LOG_PREFIX "/private/var/log" 84 85#define LAUNCHD_JOB_DEFAULTS "Defaults" 86#define LAUNCHD_JOB_DEFAULTS_CACHED "CachedDefaults" 87 88launch_t launchd_fdopen(int, int); 89int launchd_getfd(launch_t); 90void launchd_close(launch_t, __typeof__(close) closefunc); 91 92launch_data_t launch_data_new_errno(int); 93bool launch_data_set_errno(launch_data_t, int); 94 95int launchd_msg_send(launch_t, launch_data_t); 96int launchd_msg_recv(launch_t, void (*)(launch_data_t, void *), void *); 97 98size_t launch_data_pack(launch_data_t d, void *where, size_t len, int *fd_where, size_t *fdslotsleft); 99launch_data_t launch_data_unpack(void *data, size_t data_size, int *fds, size_t fd_cnt, size_t *data_offset, size_t *fdoffset); 100 101#pragma GCC visibility pop 102 103#endif /* __LAUNCH_INTERNAL_H__*/ 104