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Add QLockFilePrivate::processNameByPid implementation for GNU/kFreeBSD 

GLIBC does not provide kinfo_getproc, so we need to call sysctl manually.

Change-Id: I3bf22959ff74b3b6c34b5360738e52086a3ff1b4
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
bb10
Dmitry Shachnev 2015-08-22 12:07:42 +03:00
parent 4dca8314c3
commit a8f4fa217d
1 changed files with 24 additions and 0 deletions
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24
src/corelib/io/qlockfile_unix.cpp
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@ -56,7 +56,13 @@
# include <cstdio>
#elif defined(Q_OS_BSD4) && !defined(Q_OS_IOS)
# include <sys/user.h>
# if defined(__GLIBC__) && defined(__FreeBSD_kernel__)
# include <sys/cdefs.h>
# include <sys/param.h>
# include <sys/sysctl.h>
# else
# include <libutil.h>
# endif
#endif
QT_BEGIN_NAMESPACE
@ -234,9 +240,27 @@ QString QLockFilePrivate::processNameByPid(qint64 pid)
buf[len] = 0;
return QFileInfo(QFile::decodeName(buf)).fileName();
#elif defined(Q_OS_BSD4) && !defined(Q_OS_IOS)
# if defined(__GLIBC__) && defined(__FreeBSD_kernel__)
int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, pid };
size_t len = 0;
if (sysctl(mib, 4, NULL, &len, NULL, 0) < 0)
return QString();
kinfo_proc *proc = static_cast<kinfo_proc *>(malloc(len));
# else
kinfo_proc *proc = kinfo_getproc(pid);
# endif
if (!proc)
return QString();
# if defined(__GLIBC__) && defined(__FreeBSD_kernel__)
if (sysctl(mib, 4, proc, &len, NULL, 0) < 0) {
free(proc);
return QString();
}
if (proc->ki_pid != pid) {
free(proc);
return QString();
}
# endif
QString name = QFile::decodeName(proc->ki_comm);
free(proc);
return name;