launchd/src/launch_internal.h

   1 #ifndef _LAUNCH_INTERNAL_H_
   2 #define _LAUNCH_INTERNAL_H_
   3 /*
   4  * Copyright (c) 2007 Apple Computer, Inc. All rights reserved.
   5  *
   6  * @APPLE_APACHE_LICENSE_HEADER_START@
   7  *
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  *     http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  *
  20  * @APPLE_APACHE_LICENSE_HEADER_END@
  21  */
  22
  23 #pragma GCC visibility push(default)
  24
  25 #define LAUNCHD_DB_PREFIX "/var/db/launchd.db"
  26
  27 struct _launch_data {
  28         uint64_t type;
  29         union {
  30                 struct {
  31                         union {
  32                                 launch_data_t *_array;
  33                                 char *string;
  34                                 void *opaque;
  35                                 int64_t __junk;
  36                         };
  37                         union {
  38                                 uint64_t _array_cnt;
  39                                 uint64_t string_len;
  40                                 uint64_t opaque_size;
  41                         };
  42                 };
  43                 int64_t fd;
  44                 uint64_t  mp;
  45                 uint64_t err;
  46                 int64_t number;
  47                 uint64_t boolean; /* We'd use 'bool' but this struct needs to be used under Rosetta, and sizeof(bool) is different between PowerPC and Intel */
  48                 double float_num;
  49         };
  50 };
  51
  52 typedef struct _launch *launch_t;
  53
  54 launch_t launchd_fdopen(int, int);
  55 int launchd_getfd(launch_t);
  56 void launchd_close(launch_t, __typeof__(close) closefunc);
  57
  58 launch_data_t launch_data_new_errno(int);
  59 bool launch_data_set_errno(launch_data_t, int);
  60
  61 int launchd_msg_send(launch_t, launch_data_t);
  62 int launchd_msg_recv(launch_t, void (*)(launch_data_t, void *), void *);
  63
  64 size_t launch_data_pack(launch_data_t d, void *where, size_t len, int *fd_where, size_t *fdslotsleft);
  65 launch_data_t launch_data_unpack(void *data, size_t data_size, int *fds, size_t fd_cnt, size_t *data_offset, size_t *fdoffset);
  66
  67 #pragma GCC visibility pop
  68
  69 #endif