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* util: rename qemu_open() to qemu_open_old()Daniel P. Berrangé2020-09-161-1/+1
| | | | | | | | | | | We want to introduce a new version of qemu_open() that uses an Error object for reporting problems and make this it the preferred interface. Rename the existing method to release the namespace for the new impl. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
* Include qemu/module.h where needed, drop it from qemu-common.hMarkus Armbruster2019-06-121-0/+1
| | | | | | | | | Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190523143508.25387-4-armbru@redhat.com> [Rebased with conflicts resolved automatically, except for hw/usb/dev-hub.c hw/misc/exynos4210_rng.c hw/misc/bcm2835_rng.c hw/misc/aspeed_scu.c hw/display/virtio-vga.c hw/arm/stm32f205_soc.c; ui/cocoa.m fixed up]
* io: Add /dev/fdset/ support to QIOChannelFileRoss Lagerwall2018-02-151-3/+3
| | | | | | | | | | Add /dev/fdset/ support to QIOChannelFile by calling qemu_open() instead of open() and qemu_close() instead of close(). There is a subtle semantic change since qemu_open() automatically sets O_CLOEXEC, but this doesn't affect any of the users of the function. Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
* io: Don't call close multiple times in QIOChannelFileRoss Lagerwall2018-02-151-0/+1
| | | | | | | | | If the file descriptor underlying QIOChannelFile is closed in the io_close() method, don't close it again in the finalize() method since the file descriptor number may have been reused in the meantime. Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
* io: Fix QIOChannelFile when creating and opening read-writeRoss Lagerwall2018-02-151-5/+1Star
| | | | | | | | | | | | The code wrongly passes the mode to open() only if O_WRONLY is set. Instead, the mode should be passed when O_CREAT is set (or O_TMPFILE on Linux). Fix this by always passing the mode since open() will correctly ignore the mode if it is not needed. Add a testcase which exercises this bug and also change the existing testcase to check that the mode of the created file is correct. Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
* io: add methods to set I/O handlers on AioContextPaolo Bonzini2017-02-211-0/+11
| | | | | | | | | | | | This is in preparation for making qio_channel_yield work on AioContexts other than the main one. Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Message-id: 20170213135235.12274-6-pbonzini@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* include/qemu/osdep.h: Don't include qapi/error.hMarkus Armbruster2016-03-221-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 57cb38b included qapi/error.h into qemu/osdep.h to get the Error typedef. Since then, we've moved to include qemu/osdep.h everywhere. Its file comment explains: "To avoid getting into possible circular include dependencies, this file should not include any other QEMU headers, with the exceptions of config-host.h, compiler.h, os-posix.h and os-win32.h, all of which are doing a similar job to this file and are under similar constraints." qapi/error.h doesn't do a similar job, and it doesn't adhere to similar constraints: it includes qapi-types.h. That's in excess of 100KiB of crap most .c files don't actually need. Add the typedef to qemu/typedefs.h, and include that instead of qapi/error.h. Include qapi/error.h in .c files that need it and don't get it now. Include qapi-types.h in qom/object.h for uint16List. Update scripts/clean-includes accordingly. Update it further to match reality: replace config.h by config-target.h, add sysemu/os-posix.h, sysemu/os-win32.h. Update the list of includes in the qemu/osdep.h comment quoted above similarly. This reduces the number of objects depending on qapi/error.h from "all of them" to less than a third. Unfortunately, the number depending on qapi-types.h shrinks only a little. More work is needed for that one. Signed-off-by: Markus Armbruster <armbru@redhat.com> [Fix compilation without the spice devel packages. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* io: remove checking of EWOULDBLOCKDaniel P. Berrange2016-03-101-4/+2Star
| | | | | | | Since we now canonicalize WSAEWOULDBLOCK into EAGAIN there is no longer any need to explicitly check EWOULDBLOCK for Win32. Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
* io: Clean up includesPeter Maydell2016-02-041-0/+1
| | | | | | | | | | Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1454089805-5470-14-git-send-email-peter.maydell@linaro.org
* io: add QIOChannelFile classDaniel P. Berrange2015-12-181-0/+225
Add a QIOChannel subclass that is capable of operating on things that are files, such as plain files, pipes, character/block devices, but notably not sockets. Signed-off-by: Daniel P. Berrange <berrange@redhat.com>