| /* getrusage -- Get resource usage information about processes. Hurd version. |
| Copyright (C) 1999,2001 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| #include <errno.h> |
| #include <string.h> |
| #include <sys/resource.h> |
| #include <mach.h> |
| #include <mach/task_info.h> |
| #include <hurd.h> |
| |
| /* Return resource usage information on process indicated by WHO |
| and put it in *USAGE. Returns 0 for success, -1 for failure. */ |
| int |
| __getrusage (who, usage) |
| enum __rusage_who who; |
| struct rusage *usage; |
| { |
| struct task_basic_info bi; |
| struct task_events_info ei; |
| struct task_thread_times_info tti; |
| mach_msg_type_number_t count; |
| error_t err; |
| |
| switch (who) |
| { |
| case RUSAGE_SELF: |
| count = TASK_BASIC_INFO_COUNT; |
| err = __task_info (__mach_task_self (), TASK_BASIC_INFO, |
| (task_info_t) &bi, &count); |
| if (err) |
| return __hurd_fail (err); |
| |
| count = TASK_EVENTS_INFO_COUNT; |
| err = __task_info (__mach_task_self (), TASK_EVENTS_INFO, |
| (task_info_t) &ei, &count); |
| if (err == KERN_INVALID_ARGUMENT) /* microkernel doesn't implement it */ |
| memset (&ei, 0, sizeof ei); |
| else if (err) |
| return __hurd_fail (err); |
| |
| count = TASK_THREAD_TIMES_INFO_COUNT; |
| err = __task_info (__mach_task_self (), TASK_THREAD_TIMES_INFO, |
| (task_info_t) &tti, &count); |
| if (err) |
| return __hurd_fail (err); |
| |
| time_value_add (&bi.user_time, &tti.user_time); |
| time_value_add (&bi.system_time, &tti.system_time); |
| |
| memset (usage, 0, sizeof (struct rusage)); |
| |
| usage->ru_utime.tv_sec = bi.user_time.seconds; |
| usage->ru_utime.tv_usec = bi.user_time.microseconds; |
| usage->ru_stime.tv_sec = bi.system_time.seconds; |
| usage->ru_stime.tv_usec = bi.system_time.microseconds; |
| |
| /* These statistics map only approximately. */ |
| usage->ru_majflt = ei.pageins; |
| usage->ru_minflt = ei.faults - ei.pageins; |
| usage->ru_msgsnd = ei.messages_sent; /* Mach IPC, not SysV IPC */ |
| usage->ru_msgrcv = ei.messages_received; /* Mach IPC, not SysV IPC */ |
| break; |
| |
| case RUSAGE_CHILDREN: |
| /* XXX Not implemented yet. However, zero out USAGE to be |
| consistent with the wait3 and wait4 functions. */ |
| memset (usage, 0, sizeof (struct rusage)); |
| |
| break; |
| |
| default: |
| return EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| weak_alias (__getrusage, getrusage) |