From 688a3dcba980bf01344a1ae2bc37fea44c6014ac Mon Sep 17 00:00:00 2001 From: "Dr. David Alan Gilbert" Date: Fri, 15 Dec 2017 17:16:55 +0000 Subject: migration: Route errors down through migration_channel_connect Route async errors (especially from sockets) down through migration_channel_connect and on to migrate_fd_connect where they can be cleaned up. Signed-off-by: Dr. David Alan Gilbert Reviewed-by: Juan Quintela Signed-off-by: Juan Quintela Signed-off-by: Dr. David Alan Gilbert --- migration/channel.c | 32 ++++++++++++++++---------------- migration/channel.h | 3 ++- migration/exec.c | 2 +- migration/fd.c | 2 +- migration/socket.c | 4 +--- migration/tls.c | 3 +-- migration/trace-events | 2 +- 7 files changed, 23 insertions(+), 25 deletions(-) (limited to 'migration') diff --git a/migration/channel.c b/migration/channel.c index fdb7ddbd17..c5eaf0fa0e 100644 --- a/migration/channel.c +++ b/migration/channel.c @@ -55,29 +55,29 @@ void migration_channel_process_incoming(QIOChannel *ioc) * @s: Current migration state * @ioc: Channel to which we are connecting * @hostname: Where we want to connect + * @error: Error indicating failure to connect, free'd here */ void migration_channel_connect(MigrationState *s, QIOChannel *ioc, - const char *hostname) + const char *hostname, + Error *error) { trace_migration_set_outgoing_channel( - ioc, object_get_typename(OBJECT(ioc)), hostname); + ioc, object_get_typename(OBJECT(ioc)), hostname, error); - if (s->parameters.tls_creds && - *s->parameters.tls_creds && - !object_dynamic_cast(OBJECT(ioc), - TYPE_QIO_CHANNEL_TLS)) { - Error *local_err = NULL; - migration_tls_channel_connect(s, ioc, hostname, &local_err); - if (local_err) { - migrate_fd_error(s, local_err); - error_free(local_err); - } - } else { - QEMUFile *f = qemu_fopen_channel_output(ioc); + if (!error) { + if (s->parameters.tls_creds && + *s->parameters.tls_creds && + !object_dynamic_cast(OBJECT(ioc), + TYPE_QIO_CHANNEL_TLS)) { + migration_tls_channel_connect(s, ioc, hostname, &error); + } else { + QEMUFile *f = qemu_fopen_channel_output(ioc); - s->to_dst_file = f; + s->to_dst_file = f; - migrate_fd_connect(s, NULL); + } } + migrate_fd_connect(s, error); + error_free(error); } diff --git a/migration/channel.h b/migration/channel.h index e4b40579a1..67a461c28a 100644 --- a/migration/channel.h +++ b/migration/channel.h @@ -22,5 +22,6 @@ void migration_channel_process_incoming(QIOChannel *ioc); void migration_channel_connect(MigrationState *s, QIOChannel *ioc, - const char *hostname); + const char *hostname, + Error *error_in); #endif diff --git a/migration/exec.c b/migration/exec.c index f3be1baf2e..c9537974ad 100644 --- a/migration/exec.c +++ b/migration/exec.c @@ -39,7 +39,7 @@ void exec_start_outgoing_migration(MigrationState *s, const char *command, Error } qio_channel_set_name(ioc, "migration-exec-outgoing"); - migration_channel_connect(s, ioc, NULL); + migration_channel_connect(s, ioc, NULL, NULL); object_unref(OBJECT(ioc)); } diff --git a/migration/fd.c b/migration/fd.c index 30de4b9847..6284a97cba 100644 --- a/migration/fd.c +++ b/migration/fd.c @@ -39,7 +39,7 @@ void fd_start_outgoing_migration(MigrationState *s, const char *fdname, Error ** } qio_channel_set_name(QIO_CHANNEL(ioc), "migration-fd-outgoing"); - migration_channel_connect(s, ioc, NULL); + migration_channel_connect(s, ioc, NULL, NULL); object_unref(OBJECT(ioc)); } diff --git a/migration/socket.c b/migration/socket.c index 3a8232dd2d..e090097077 100644 --- a/migration/socket.c +++ b/migration/socket.c @@ -79,12 +79,10 @@ static void socket_outgoing_migration(QIOTask *task, if (qio_task_propagate_error(task, &err)) { trace_migration_socket_outgoing_error(error_get_pretty(err)); - migrate_fd_error(data->s, err); - error_free(err); } else { trace_migration_socket_outgoing_connected(data->hostname); - migration_channel_connect(data->s, sioc, data->hostname); } + migration_channel_connect(data->s, sioc, data->hostname, err); object_unref(OBJECT(sioc)); } diff --git a/migration/tls.c b/migration/tls.c index 026a008667..a29b35b33c 100644 --- a/migration/tls.c +++ b/migration/tls.c @@ -118,11 +118,10 @@ static void migration_tls_outgoing_handshake(QIOTask *task, if (qio_task_propagate_error(task, &err)) { trace_migration_tls_outgoing_handshake_error(error_get_pretty(err)); - migrate_fd_error(s, err); } else { trace_migration_tls_outgoing_handshake_complete(); - migration_channel_connect(s, ioc, NULL); } + migration_channel_connect(s, ioc, NULL, err); object_unref(OBJECT(ioc)); } diff --git a/migration/trace-events b/migration/trace-events index 6f29fcc686..93961dea16 100644 --- a/migration/trace-events +++ b/migration/trace-events @@ -114,7 +114,7 @@ migrate_transferred(uint64_t tranferred, uint64_t time_spent, double bandwidth, process_incoming_migration_co_end(int ret, int ps) "ret=%d postcopy-state=%d" process_incoming_migration_co_postcopy_end_main(void) "" migration_set_incoming_channel(void *ioc, const char *ioctype) "ioc=%p ioctype=%s" -migration_set_outgoing_channel(void *ioc, const char *ioctype, const char *hostname) "ioc=%p ioctype=%s hostname=%s" +migration_set_outgoing_channel(void *ioc, const char *ioctype, const char *hostname, void *err) "ioc=%p ioctype=%s hostname=%s err=%p" # migration/rdma.c qemu_rdma_accept_incoming_migration(void) "" -- cgit v1.2.1