diff options
Diffstat (limited to 'sysdeps/unix/sysv/solaris2/kopensolaris-gnu/wait4.c')
-rw-r--r-- | sysdeps/unix/sysv/solaris2/kopensolaris-gnu/wait4.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/wait4.c b/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/wait4.c new file mode 100644 index 0000000000..9f8cfada0a --- /dev/null +++ b/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/wait4.c @@ -0,0 +1,60 @@ +/* Copyright (C) 2008 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by David Bartley <dtbartle@csclub.uwaterloo.ca>, 2008. + + 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 <sys/types.h> +#include <sys/resource.h> +#include <sys/wait.h> +#include <sys/times.h> +#include <time.h> + +/* Solaris only supports user/system time fields of rusage for wait. */ + +pid_t +__wait4 (__pid_t pid, __WAIT_STATUS stat_loc, int options, + struct rusage *usage) +{ + /* start time */ + struct tms start; + if (usage && times (&start) == (clock_t)-1) + return -1; + + /* wait */ + pid = __waitpid (pid, stat_loc.__iptr, options); + if (pid == -1) + return -1; + + /* end time */ + struct tms end; + if (usage && times (&end) == (clock_t)-1) + return -1; + + /* compute deltas */ + if (usage) + { + clock_t dutime = end.tms_cutime - start.tms_cutime; + clock_t dstime = end.tms_cstime - start.tms_cstime; + usage->ru_utime.tv_sec = dutime / CLOCKS_PER_SEC; + usage->ru_utime.tv_usec = (dutime % CLOCKS_PER_SEC) * (1000000 / CLOCKS_PER_SEC); + usage->ru_stime.tv_sec = dstime / CLOCKS_PER_SEC; + usage->ru_stime.tv_usec = (dstime % CLOCKS_PER_SEC) * (1000000 / CLOCKS_PER_SEC); + } + + return pid; +} +weak_alias (__wait4, wait4) |