diff options
Diffstat (limited to 'migration/migration-exec.c')
-rw-r--r-- | migration/migration-exec.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/migration/migration-exec.c b/migration/migration-exec.c new file mode 100644 index 0000000000..479024752f --- /dev/null +++ b/migration/migration-exec.c @@ -0,0 +1,69 @@ +/* + * QEMU live migration + * + * Copyright IBM, Corp. 2008 + * Copyright Dell MessageOne 2008 + * + * Authors: + * Anthony Liguori <aliguori@us.ibm.com> + * Charles Duffy <charles_duffy@messageone.com> + * + * This work is licensed under the terms of the GNU GPL, version 2. See + * the COPYING file in the top-level directory. + * + * Contributions after 2012-01-13 are licensed under the terms of the + * GNU GPL, version 2 or (at your option) any later version. + */ + +#include "qemu-common.h" +#include "qemu/sockets.h" +#include "qemu/main-loop.h" +#include "migration/migration.h" +#include "migration/qemu-file.h" +#include "block/block.h" +#include <sys/types.h> +#include <sys/wait.h> + +//#define DEBUG_MIGRATION_EXEC + +#ifdef DEBUG_MIGRATION_EXEC +#define DPRINTF(fmt, ...) \ + do { printf("migration-exec: " fmt, ## __VA_ARGS__); } while (0) +#else +#define DPRINTF(fmt, ...) \ + do { } while (0) +#endif + +void exec_start_outgoing_migration(MigrationState *s, const char *command, Error **errp) +{ + s->file = qemu_popen_cmd(command, "w"); + if (s->file == NULL) { + error_setg_errno(errp, errno, "failed to popen the migration target"); + return; + } + + migrate_fd_connect(s); +} + +static void exec_accept_incoming_migration(void *opaque) +{ + QEMUFile *f = opaque; + + qemu_set_fd_handler2(qemu_get_fd(f), NULL, NULL, NULL, NULL); + process_incoming_migration(f); +} + +void exec_start_incoming_migration(const char *command, Error **errp) +{ + QEMUFile *f; + + DPRINTF("Attempting to start an incoming migration\n"); + f = qemu_popen_cmd(command, "r"); + if(f == NULL) { + error_setg_errno(errp, errno, "failed to popen the migration source"); + return; + } + + qemu_set_fd_handler2(qemu_get_fd(f), NULL, + exec_accept_incoming_migration, NULL, f); +} |