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patch 8.2.2586: process id may be invalid

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Problem:    Process id may be invalid.
Solution:   Use sysinfo.uptime to check for recent reboot. (suggested by Hugo
            van der Sanden, closes #7947)
This commit is contained in:
Bram Moolenaar
2021-03-10 21:26:37 +01:00
parent c23555de34
commit f52f0606ed
8 changed files with 147 additions and 16 deletions
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14
src/configure.ac
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@@ -4095,6 +4095,20 @@ AC_TRY_COMPILE(
AC_MSG_RESULT(yes); AC_DEFINE(HAVE_SYSINFO_MEM_UNIT),
AC_MSG_RESULT(no))
dnl struct sysinfo may have the uptime field or not
AC_MSG_CHECKING(for sysinfo.uptime)
AC_TRY_COMPILE(
[#include <sys/types.h>
#include <sys/sysinfo.h>],
[ struct sysinfo sinfo;
long ut;
(void)sysinfo(&sinfo);
ut = sinfo.uptime;
],
AC_MSG_RESULT(yes); AC_DEFINE(HAVE_SYSINFO_UPTIME),
AC_MSG_RESULT(no))
dnl sysconf() may exist but not support what we want to use
AC_MSG_CHECKING(for sysconf)
AC_TRY_COMPILE(