This is an automated email from the git hooks/post-receive script. x2go pushed a change to branch bugfix/osx in repository x2goclient. from c7e6a9e src/pulsemanager.cpp: make sure that wherever we interface with non-Qt functions, paths are in native form (i.e., containing empty separators, instead of the "generic" slash UNIX-style separator.) new 7281b93 src/pulsemanager.cpp: fix PA version fetching on OS X again. new f1953cb src/unixhelper.{cpp,h}: make argument of kill_pgroup () const. new 40b9683 src/unixhelper.h: style and general fixes within comments. new d643979 src/unixhelper.{cpp,h}: split off core functionality of kill_pgroup () into a new function called real_kill_pgroup (). new 15461fd src/unixhelper.{cpp,h}: rewrite kill_pgroup () to act as a wrapper around real_kill_pgroup (). The 5 revisions listed above as "new" are entirely new to this repository and will be described in separate emails. The revisions listed as "adds" were already present in the repository and have only been added to this reference. Summary of changes: debian/changelog | 9 ++++++ src/pulsemanager.cpp | 4 +-- src/unixhelper.cpp | 75 +++++++++++++++++++++++++++++++++++++++++++------- src/unixhelper.h | 31 +++++++++++++++------ 4 files changed, 98 insertions(+), 21 deletions(-) -- Alioth's /srv/git/code.x2go.org/x2goclient.git//..//_hooks_/post-receive-email on /srv/git/code.x2go.org/x2goclient.git
This is an automated email from the git hooks/post-receive script. x2go pushed a commit to branch bugfix/osx in repository x2goclient. commit 40b9683514478dc496f29f5dea953b3d7abce853 Author: Mihai Moldovan <ionic@ionic.de> Date: Fri Aug 12 09:06:32 2016 +0200 src/unixhelper.h: style and general fixes within comments. --- debian/changelog | 1 + src/unixhelper.h | 5 +++-- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/debian/changelog b/debian/changelog index 12f241b..3610ba5 100644 --- a/debian/changelog +++ b/debian/changelog @@ -393,6 +393,7 @@ x2goclient (4.0.5.2-0x2go1) UNRELEASED; urgency=medium startup issue on Windows. - src/pulsemanager.cpp: fix PA version fetching on OS X again. - src/unixhelper.{cpp,h}: make argument of kill_pgroup () const. + - src/unixhelper.h: style and general fixes within comments. * debian/control: - Maintainer change in package: X2Go Developers <x2go-dev@lists.x2go.org>. - Uploaders: add myself. Also, force a rebuild due to the changed diff --git a/src/unixhelper.h b/src/unixhelper.h index 3c2798f..d67f3ed 100644 --- a/src/unixhelper.h +++ b/src/unixhelper.h @@ -29,7 +29,7 @@ namespace unixhelper { /* * Unblocks all signals and installs a signal handler for SIGHUP, - * which calls kill_pgroup(). + * which calls kill_pgroup (). * * Should signal unblocking or installing the signal handler fail, * an emergency exit is performed and @@ -42,7 +42,7 @@ namespace unixhelper { * * In this loop, the current parent PID is polled and compared against * the original value passed via parameter parent. - * Should they mismatch, the parent died and kill_pgroup() is called. + * Should they mismatch, the parent died and kill_pgroup () is called. */ int unix_cleanup (const pid_t parent); @@ -60,6 +60,7 @@ namespace unixhelper { * group leader dies under specific circumstances * (we cannot rely that this always happens, though, * so a polling solution is needed, see unix_cleanup().) + * Other values are not handled. */ void kill_pgroup (const int signal); } -- Alioth's /srv/git/code.x2go.org/x2goclient.git//..//_hooks_/post-receive-email on /srv/git/code.x2go.org/x2goclient.git
This is an automated email from the git hooks/post-receive script. x2go pushed a commit to branch bugfix/osx in repository x2goclient. commit f1953cbf4ab0929e820e34020bb06001fb19489d Author: Mihai Moldovan <ionic@ionic.de> Date: Fri Aug 12 09:04:42 2016 +0200 src/unixhelper.{cpp,h}: make argument of kill_pgroup () const. --- debian/changelog | 1 + src/unixhelper.cpp | 2 +- src/unixhelper.h | 2 +- 3 files changed, 3 insertions(+), 2 deletions(-) diff --git a/debian/changelog b/debian/changelog index 6ea3f5b..12f241b 100644 --- a/debian/changelog +++ b/debian/changelog @@ -392,6 +392,7 @@ x2goclient (4.0.5.2-0x2go1) UNRELEASED; urgency=medium instead of the "generic" slash UNIX-style separator.) Should fix a PA startup issue on Windows. - src/pulsemanager.cpp: fix PA version fetching on OS X again. + - src/unixhelper.{cpp,h}: make argument of kill_pgroup () const. * debian/control: - Maintainer change in package: X2Go Developers <x2go-dev@lists.x2go.org>. - Uploaders: add myself. Also, force a rebuild due to the changed diff --git a/src/unixhelper.cpp b/src/unixhelper.cpp index d5aa67d..4488786 100644 --- a/src/unixhelper.cpp +++ b/src/unixhelper.cpp @@ -34,7 +34,7 @@ /* For documentation please see unixhelper.h. */ namespace unixhelper { - void kill_pgroup (int signal) { + void kill_pgroup (const int signal) { if (SIGHUP == signal) { /* Try to kill via SIGTERM first. */ if (0 != killpg (getpgrp (), SIGTERM)) { diff --git a/src/unixhelper.h b/src/unixhelper.h index a34456e..3c2798f 100644 --- a/src/unixhelper.h +++ b/src/unixhelper.h @@ -61,7 +61,7 @@ namespace unixhelper { * (we cannot rely that this always happens, though, * so a polling solution is needed, see unix_cleanup().) */ - void kill_pgroup (int signal); + void kill_pgroup (const int signal); } #endif /* defined (Q_OS_UNIX) */ -- Alioth's /srv/git/code.x2go.org/x2goclient.git//..//_hooks_/post-receive-email on /srv/git/code.x2go.org/x2goclient.git
This is an automated email from the git hooks/post-receive script. x2go pushed a commit to branch bugfix/osx in repository x2goclient. commit 7281b93f25c801a84a109d16f6b9be785c9cb633 Author: Mihai Moldovan <ionic@ionic.de> Date: Fri Aug 12 08:55:34 2016 +0200 src/pulsemanager.cpp: fix PA version fetching on OS X again. --- debian/changelog | 1 + src/pulsemanager.cpp | 4 ++-- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/debian/changelog b/debian/changelog index 0d18bc5..6ea3f5b 100644 --- a/debian/changelog +++ b/debian/changelog @@ -391,6 +391,7 @@ x2goclient (4.0.5.2-0x2go1) UNRELEASED; urgency=medium functions, paths are in native form (i.e., containing empty separators, instead of the "generic" slash UNIX-style separator.) Should fix a PA startup issue on Windows. + - src/pulsemanager.cpp: fix PA version fetching on OS X again. * debian/control: - Maintainer change in package: X2Go Developers <x2go-dev@lists.x2go.org>. - Uploaders: add myself. Also, force a rebuild due to the changed diff --git a/src/pulsemanager.cpp b/src/pulsemanager.cpp index 6170634..01677dd 100644 --- a/src/pulsemanager.cpp +++ b/src/pulsemanager.cpp @@ -419,7 +419,7 @@ void PulseManager::fetch_pulseaudio_version () { abort (); } } - else if (!(numbers_finished[1])) { + else if ((!(numbers_finished[1])) && (!(numbers_skip[1]))) { if (((*cit) >= '0') && ((*cit) <= '9')) { numbers[1].append (*cit); numbers_started[1] = true; @@ -444,7 +444,7 @@ void PulseManager::fetch_pulseaudio_version () { abort (); } } - else if (!(numbers_finished[2])) { + else if ((!(numbers_finished[2])) && (!(numbers_skip[2]))) { if (((*cit) >= '0') && ((*cit) <= '9')) { numbers[2].append (*cit); numbers_started[2] = true; -- Alioth's /srv/git/code.x2go.org/x2goclient.git//..//_hooks_/post-receive-email on /srv/git/code.x2go.org/x2goclient.git
This is an automated email from the git hooks/post-receive script. x2go pushed a commit to branch bugfix/osx in repository x2goclient. commit d643979587cb5091bc358598536b63b3971687f5 Author: Mihai Moldovan <ionic@ionic.de> Date: Fri Aug 12 09:00:41 2016 +0200 src/unixhelper.{cpp,h}: split off core functionality of kill_pgroup () into a new function called real_kill_pgroup (). --- debian/changelog | 2 ++ src/unixhelper.cpp | 37 +++++++++++++++++++++++++++---------- src/unixhelper.h | 12 ++++++++++++ 3 files changed, 41 insertions(+), 10 deletions(-) diff --git a/debian/changelog b/debian/changelog index 3610ba5..8e12b42 100644 --- a/debian/changelog +++ b/debian/changelog @@ -394,6 +394,8 @@ x2goclient (4.0.5.2-0x2go1) UNRELEASED; urgency=medium - src/pulsemanager.cpp: fix PA version fetching on OS X again. - src/unixhelper.{cpp,h}: make argument of kill_pgroup () const. - src/unixhelper.h: style and general fixes within comments. + - src/unixhelper.{cpp,h}: split off core functionality of kill_pgroup () + into a new function called real_kill_pgroup (). * debian/control: - Maintainer change in package: X2Go Developers <x2go-dev@lists.x2go.org>. - Uploaders: add myself. Also, force a rebuild due to the changed diff --git a/src/unixhelper.cpp b/src/unixhelper.cpp index 4488786..4d9c56f 100644 --- a/src/unixhelper.cpp +++ b/src/unixhelper.cpp @@ -30,25 +30,42 @@ #include <cerrno> #include <vector> #include <cstdlib> +#include <stdio.h> +#include <string.h> /* For documentation please see unixhelper.h. */ namespace unixhelper { void kill_pgroup (const int signal) { - if (SIGHUP == signal) { - /* Try to kill via SIGTERM first. */ - if (0 != killpg (getpgrp (), SIGTERM)) { - std::cerr << "WARNING: unable to send SIGTERM to process group: " << std::strerror (errno) << std::endl; - } + } + + void real_kill_pgroup (const pid_t pgid) { + /* Try to kill via SIGTERM first. */ + if (0 != killpg (pgid, SIGTERM)) { + std::cerr << "WARNING: unable to send SIGTERM to process group '" << pgid << "': " << std::strerror (errno) << std::endl; + } + + /* Grant a grace period of (at least) 10 seconds. */ + sleep (10); - /* Grant a grace period of (at least) 10 seconds. */ - sleep (10); + int kill_ret = killpg (pgid, SIGKILL); - /* Don't handle any errors here, because we die anyway. */ - killpg (getpgrp (), SIGKILL); + /* + * Might be unreachable. + * Depending upon which pgroup we just killed, this + * code is either unreachable (because killpg () killed + * itself already), or being executed. + * Let's handle errors and exit, if necessary. + */ + if (0 != kill_ret) { + char err_str[512] = { }; + snprintf (err_str, 512, "WARNING: failed to kill process group '%d'", pgid); + + perror (err_str); } - } + exit (EXIT_SUCCESS); + } int unix_cleanup (const pid_t parent) { /* diff --git a/src/unixhelper.h b/src/unixhelper.h index d67f3ed..662b3be 100644 --- a/src/unixhelper.h +++ b/src/unixhelper.h @@ -63,6 +63,18 @@ namespace unixhelper { * Other values are not handled. */ void kill_pgroup (const int signal); + + /* + * Kills the whole process group. + * First, SIGTERM is sent to the group. + * A 10 seconds grace period is granted to make sure + * processes exit cleanly on their own. + * Lastly, SIGKILL is sent to the group -- which also + * implies the demise of this program. + * + * pgid is the process group ID to be killed. + */ + void real_kill_pgroup (const pid_t pgid); } #endif /* defined (Q_OS_UNIX) */ -- Alioth's /srv/git/code.x2go.org/x2goclient.git//..//_hooks_/post-receive-email on /srv/git/code.x2go.org/x2goclient.git
This is an automated email from the git hooks/post-receive script. x2go pushed a commit to branch bugfix/osx in repository x2goclient. commit 15461fd32410691fe12682e45aed5a014f715ae7 Author: Mihai Moldovan <ionic@ionic.de> Date: Fri Aug 12 09:11:16 2016 +0200 src/unixhelper.{cpp,h}: rewrite kill_pgroup () to act as a wrapper around real_kill_pgroup (). Adjust comment. We need to do this so the cleanup process doesn't kill itself before all other processes in the process group are killed. --- debian/changelog | 4 ++++ src/unixhelper.cpp | 38 ++++++++++++++++++++++++++++++++++++++ src/unixhelper.h | 12 ++++++------ 3 files changed, 48 insertions(+), 6 deletions(-) diff --git a/debian/changelog b/debian/changelog index 8e12b42..f3bcfff 100644 --- a/debian/changelog +++ b/debian/changelog @@ -396,6 +396,10 @@ x2goclient (4.0.5.2-0x2go1) UNRELEASED; urgency=medium - src/unixhelper.h: style and general fixes within comments. - src/unixhelper.{cpp,h}: split off core functionality of kill_pgroup () into a new function called real_kill_pgroup (). + - src/unixhelper.{cpp,h}: rewrite kill_pgroup () to act as a wrapper + around real_kill_pgroup (). Adjust comment. We need to do this so the + cleanup process doesn't kill itself before all other processes in the + process group are killed. * debian/control: - Maintainer change in package: X2Go Developers <x2go-dev@lists.x2go.org>. - Uploaders: add myself. Also, force a rebuild due to the changed diff --git a/src/unixhelper.cpp b/src/unixhelper.cpp index 4d9c56f..82e4374 100644 --- a/src/unixhelper.cpp +++ b/src/unixhelper.cpp @@ -37,6 +37,44 @@ namespace unixhelper { void kill_pgroup (const int signal) { + pid_t pgid_to_kill = getpgrp (); + + if ((SIGHUP == signal) || (-1 == signal)) { + /* + * In order to not kill ourselves, we need to run this + * code in a new process group. + */ + pid_t tmp_pid = fork (); + + /* Child. */ + if (0 == tmp_pid) { + /* Create new pgid. */ + int err = setpgid (0, 0); + + if (0 != err) { + std::perror ("WARNING: unable to change PGID"); + std::cerr << "Continuing with normal operation, but process might kill itself before tree vanishes." << std::endl; + } + + real_kill_pgroup (pgid_to_kill); + } + /* Error. */ + else if (-1 == tmp_pid) { + perror ("WARNING: unable to fork off another process to kill original process group"); + std::cerr << "Proceeding with normal operation, but process might kill itself before tree vanishes." << std::endl; + + real_kill_pgroup (pgid_to_kill); + } + /* Parent. */ + else { + /* + * No need to do anything, just exit here in order to not + * spawn a bunch of new processes due to subsequent calls + * to kill_pgroup () from unix_cleanup (). + */ + exit (EXIT_SUCCESS); + } + } } void real_kill_pgroup (const pid_t pgid) { diff --git a/src/unixhelper.h b/src/unixhelper.h index 662b3be..7d30bcf 100644 --- a/src/unixhelper.h +++ b/src/unixhelper.h @@ -47,12 +47,12 @@ namespace unixhelper { int unix_cleanup (const pid_t parent); /* - * Kills the whole process group. - * First, SIGTERM is sent to the group. - * A 10 seconds grace period is granted to make sure - * processes exit cleanly on their own. - * Lastly, SIGKILL is sent to the group -- which also - * implies the demise of this program. + * Wrapper for killing a whole process group. + * The "real" killing work is done by real_kill_pgroup (). + * This function tries to fork off another process and change + * the new function's process group ID. + * If any of these operations fail, killing the original process + * group ID will still continue, albeit with warning messages. * * signal may be any of: * * -1 to indicate an error leading to emergency termination -- Alioth's /srv/git/code.x2go.org/x2goclient.git//..//_hooks_/post-receive-email on /srv/git/code.x2go.org/x2goclient.git
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