aboutsummaryrefslogtreecommitdiff
path: root/os-posix.c
AgeCommit message (Collapse)Author
2012-02-01keep the PID file locked for the lifetime of the processLaszlo Ersek
The lockf() call in qemu_create_pidfile() aims at ensuring mutual exclusion. We shouldn't close the pidfile on success (as introduced by commit 1bbd1592), because that drops the lock as well [1]: "File locks shall be released on first close by the locking process of any file descriptor for the file." Coverity may complain again about the leaked file descriptor; let's worry about that later. v1->v2: - add reference to 1bbd1592 - explain the intentional fd leak in the source [1] http://pubs.opengroup.org/onlinepubs/9699919799/functions/lockf.html Signed-off-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-12-22link the main loop and its dependencies into the toolsPaolo Bonzini
Using the main loop code from QEMU enables tools to operate fully asynchronously. Advantages include better Windows portability (for some definition of portability) over glib's. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2011-11-11os-posix: Plug fd leak in qemu_create_pidfile()Markus Armbruster
Spotted by Coverity. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-20Use glib memory allocation and free functionsAnthony Liguori
qemu_malloc/qemu_free no longer exist after this commit. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-07-12os-posix: set groups properly for -runasStefan Hajnoczi
Andrew Griffiths reports that -runas does not set supplementary group IDs. This means that gid 0 (root) is not dropped when switching to an unprivileged user. Add an initgroups(3) call to use the -runas user's /etc/groups membership to update the supplementary group IDs. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Acked-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-15Introduce format string for pid_tAndreas Färber
BeOS and Haiku on i386 use long for 32-bit types, including pid_t. Using %d with pid_t therefore results in a warning. Unfortunately POSIX:2008 does not define a PRId* string for pid_t. In some places pid_t was previously casted to long and %ld hardcoded. The predecessor of this patch added another upcast for the simpletrace filename but was not applied to date. Since new uses of pid_t with %d keep creeping in, let's instead define an OS-dependent format string and use that consistently. Cc: Stefan Hajnoczi <stefanha@gmail.com> Cc: Blue Swirl <blauwirbel@gmail.com> Cc: Ingo Weinhold <ingo_weinhold@gmx.de> Cc: Gleb Natapov <gleb@redhat.com> Signed-off-by: Andreas Färber <andreas.faerber@web.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-03-29add a service to reap zombies, use it in SLIRPPaolo Bonzini
SLIRP -smb support wants to fork a process and forget about reaping it. To please it, add a generic service to register a process id and let QEMU reap it. In the future it could be enhanced to pass a status, but this would be unused. With this in place, the SIGCHLD signal handler would not stomp on pclose anymore. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-03-26report that QEMU process was killed by a signalGleb Natapov
Currently when rogue script kills QEMU process (using TERM/INT/HUP signal) it looks indistinguishable from system shutdown. Lets report that QEMU was killed and leave some clues about the killer identity. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-03-16Expose thread_id in info cpusJan Kiszka
Based on patch by Glauber Costa: To allow management applications like libvirt to apply CPU affinities to the VCPU threads, expose their ID via info cpus. This patch provides the pre-existing and used interface from qemu-kvm. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-30Separate qemu_pidfile() into OS specific versionsJes Sorensen
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-30We only support eventfd under POSIX, move qemu_eventfd() to os-posix.cJes Sorensen
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-08-20Use ARRAY_SIZE macroBlue Swirl
Replace array size calculations with ARRAY_SIZE macro. Implemented with this Coccinelle semantic patch, adapted from Linux kernel: @@ type T; T[] E; @@ - (sizeof(E)/sizeof(*E)) + ARRAY_SIZE(E) @@ type T; T[] E; @@ - (sizeof(E)/sizeof(E[...])) + ARRAY_SIZE(E) @@ type T; T[] E; @@ - (sizeof(E)/sizeof(T)) + ARRAY_SIZE(E) Some files (*-dis.c, tests/*) had to be filtered out. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-07-06Include sys/mman.h before qemu-options.hJes Sorensen
The result of parsing qemu-options.def depends on whehter or not MAP_POPULATE is defined, so make sure to include sys/mman.h before including qemu-options.h. Reported by Frank Arnold. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-06-12Move set_proc_name() to OS specific files.Jes Sorensen
Move handling to change process name to POSIX specific files plus add a better error message to cover the case where the feature isn't supported. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Acked-by: Juan Quintela <quintela@redhat.com> Acked-by: Richard Henderson <rth@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-06-12Move line-buffering setup to OS specific files.Jes Sorensen
Move line-buffering setup to OS specific files. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Acked-by: Juan Quintela <quintela@redhat.com> Acked-by: Richard Henderson <rth@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-06-12Make os_change_process_uid and os_change_root os-posix.c localJes Sorensen
os_change_process_uid() and os_change_root() are now only called from os-posix.c, so no need to keep win32 stubs for them. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Acked-by: Juan Quintela <quintela@redhat.com> Acked-by: Richard Henderson <rth@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-06-12Move daemonize handling to OS specific filesJes Sorensen
Move daemonize handling from vl.c to OS specific files. Provide dummy stubs for Win32. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Acked-by: Juan Quintela <quintela@redhat.com> Acked-by: Richard Henderson <rth@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-06-12Move chroot handling to OS specific files.Jes Sorensen
Move chroot handling to OS specific files. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Acked-by: Juan Quintela <quintela@redhat.com> Acked-by: Richard Henderson <rth@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-06-12Move runas handling from vl.c to OS specific files.Jes Sorensen
Move code to handle runas, ie. change of user id of QEMU process to OS specific files and provide dummy stub for Win32. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Acked-by: Juan Quintela <quintela@redhat.com> Acked-by: Richard Henderson <rth@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-06-12Introduce OS specific cmdline argument handling and move SMB arg to os-posix.cJes Sorensen
Introduce OS specific cmdline argument handling by calling os_parse_cmd_args() at the end of switch() statement. Move option enum to qemu-options.h and have it included from os-posix.c and os-win32.c in addition to vl.c. In addition move SMB argument to os-posix.c Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Acked-by: Juan Quintela <quintela@redhat.com> Acked-by: Richard Henderson <rth@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-06-12Move find_datadir to OS specific files.Jes Sorensen
This moves the win32 and POSIX versions of find_datadir() to OS specific files, and removes some #ifdef clutter from vl.c Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Acked-by: Juan Quintela <quintela@redhat.com> Acked-by: Richard Henderson <rth@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-06-12Move main signal handler setup to os specificfiles.Jes Sorensen
Move main signal handler setup to os specific files. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Acked-by: Juan Quintela <quintela@redhat.com> Acked-by: Richard Henderson <rth@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-06-12Rename os_setup_signal_handling() to os_setup_early_signal_handling()Jes Sorensen
Rename os_setup_signal_handling() to os_setup_early_signal_handling() Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Acked-by: Juan Quintela <quintela@redhat.com> Acked-by: Richard Henderson <rth@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-06-12Introduce os-posix.c and create os_setup_signal_handling()Jes Sorensen
Introcuce os-posix.c and move posix specific signal handling there. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Acked-by: Juan Quintela <quintela@redhat.com> Acked-by: Richard Henderson <rth@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-27 19:53:57 +0000