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migration/rdma: Split qemu_fopen_rdma() into input/output functions 

This is how everything else in QEMUFile is structured.
As a bonus they are three less lines of code.

Reviewed-by: Peter Xu <peterx@redhat.com>
Message-ID: <20230530183941.7223-17-quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Juan Quintela 2023-05-30 20:39:37 +02:00
parent ac6f48e15d
commit 697c4c86ab
3 changed files with 19 additions and 33 deletions
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12
migration/qemu-file.c
View File

@ -100,18 +100,6 @@ int qemu_file_shutdown(QEMUFile *f)
return 0;
}
bool qemu_file_mode_is_not_valid(const char *mode)
{
if (mode == NULL ||
(mode[0] != 'r' && mode[0] != 'w') ||
mode[1] != 'b' || mode[2] != 0) {
fprintf(stderr, "qemu_fopen: Argument validity check failed\n");
return true;
}
return false;
}
static QEMUFile *qemu_file_new_impl(QIOChannel *ioc, bool is_writable)
{
QEMUFile *f;

1
migration/qemu-file.h
View File

@ -102,7 +102,6 @@ uint64_t qemu_file_transferred_noflush(QEMUFile *f);
*/
void qemu_put_buffer_async(QEMUFile *f, const uint8_t *buf, size_t size,
bool may_free);
bool qemu_file_mode_is_not_valid(const char *mode);
#include "migration/qemu-file-types.h"

39
migration/rdma.c
View File

@ -4053,27 +4053,26 @@ static void qio_channel_rdma_register_types(void)
type_init(qio_channel_rdma_register_types);
static QEMUFile *qemu_fopen_rdma(RDMAContext *rdma, const char *mode)
static QEMUFile *rdma_new_input(RDMAContext *rdma)
{
QIOChannelRDMA *rioc;
QIOChannelRDMA *rioc = QIO_CHANNEL_RDMA(object_new(TYPE_QIO_CHANNEL_RDMA));
if (qemu_file_mode_is_not_valid(mode)) {
return NULL;
}
rioc->file = qemu_file_new_input(QIO_CHANNEL(rioc));
rioc->rdmain = rdma;
rioc->rdmaout = rdma->return_path;
qemu_file_set_hooks(rioc->file, &rdma_read_hooks);
rioc = QIO_CHANNEL_RDMA(object_new(TYPE_QIO_CHANNEL_RDMA));
return rioc->file;
}
if (mode[0] == 'w') {
rioc->file = qemu_file_new_output(QIO_CHANNEL(rioc));
rioc->rdmaout = rdma;
rioc->rdmain = rdma->return_path;
qemu_file_set_hooks(rioc->file, &rdma_write_hooks);
} else {
rioc->file = qemu_file_new_input(QIO_CHANNEL(rioc));
rioc->rdmain = rdma;
rioc->rdmaout = rdma->return_path;
qemu_file_set_hooks(rioc->file, &rdma_read_hooks);
}
static QEMUFile *rdma_new_output(RDMAContext *rdma)
{
QIOChannelRDMA *rioc = QIO_CHANNEL_RDMA(object_new(TYPE_QIO_CHANNEL_RDMA));
rioc->file = qemu_file_new_output(QIO_CHANNEL(rioc));
rioc->rdmaout = rdma;
rioc->rdmain = rdma->return_path;
qemu_file_set_hooks(rioc->file, &rdma_write_hooks);
return rioc->file;
}
@ -4099,9 +4098,9 @@ static void rdma_accept_incoming_migration(void *opaque)
return;
}
f = qemu_fopen_rdma(rdma, "rb");
f = rdma_new_input(rdma);
if (f == NULL) {
fprintf(stderr, "RDMA ERROR: could not qemu_fopen_rdma\n");
fprintf(stderr, "RDMA ERROR: could not open RDMA for input\n");
qemu_rdma_cleanup(rdma);
return;
}
@ -4224,7 +4223,7 @@ void rdma_start_outgoing_migration(void *opaque,
trace_rdma_start_outgoing_migration_after_rdma_connect();
s->to_dst_file = qemu_fopen_rdma(rdma, "wb");
s->to_dst_file = rdma_new_output(rdma);
migrate_fd_connect(s, NULL);
return;
return_path_err: