da34e65cb4
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>
91 lines
2.1 KiB
C
91 lines
2.1 KiB
C
/*
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* QEMU live migration via generic fd
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*
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* Copyright Red Hat, Inc. 2009
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*
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* Authors:
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* Chris Lalancette <clalance@redhat.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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* Contributions after 2012-01-13 are licensed under the terms of the
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* GNU GPL, version 2 or (at your option) any later version.
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*/
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#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include "qemu-common.h"
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#include "qemu/main-loop.h"
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#include "qemu/sockets.h"
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#include "migration/migration.h"
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#include "monitor/monitor.h"
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#include "migration/qemu-file.h"
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#include "block/block.h"
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//#define DEBUG_MIGRATION_FD
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#ifdef DEBUG_MIGRATION_FD
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#define DPRINTF(fmt, ...) \
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do { printf("migration-fd: " fmt, ## __VA_ARGS__); } while (0)
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#else
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#define DPRINTF(fmt, ...) \
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do { } while (0)
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#endif
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static bool fd_is_socket(int fd)
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{
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struct stat stat;
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int ret = fstat(fd, &stat);
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if (ret == -1) {
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/* When in doubt say no */
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return false;
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}
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return S_ISSOCK(stat.st_mode);
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}
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void fd_start_outgoing_migration(MigrationState *s, const char *fdname, Error **errp)
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{
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int fd = monitor_get_fd(cur_mon, fdname, errp);
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if (fd == -1) {
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return;
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}
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if (fd_is_socket(fd)) {
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s->to_dst_file = qemu_fopen_socket(fd, "wb");
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} else {
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s->to_dst_file = qemu_fdopen(fd, "wb");
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}
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migrate_fd_connect(s);
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}
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static void fd_accept_incoming_migration(void *opaque)
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{
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QEMUFile *f = opaque;
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qemu_set_fd_handler(qemu_get_fd(f), NULL, NULL, NULL);
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process_incoming_migration(f);
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}
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void fd_start_incoming_migration(const char *infd, Error **errp)
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{
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int fd;
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QEMUFile *f;
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DPRINTF("Attempting to start an incoming migration via fd\n");
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fd = strtol(infd, NULL, 0);
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if (fd_is_socket(fd)) {
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f = qemu_fopen_socket(fd, "rb");
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} else {
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f = qemu_fdopen(fd, "rb");
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}
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if(f == NULL) {
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error_setg_errno(errp, errno, "failed to open the source descriptor");
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return;
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}
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qemu_set_fd_handler(fd, fd_accept_incoming_migration, NULL, f);
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}
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