diff options
| -rw-r--r-- | include/migration/qemu-file.h | 1 | ||||
| -rw-r--r-- | migration/qemu-file.c | 16 |
2 files changed, 17 insertions, 0 deletions
diff --git a/include/migration/qemu-file.h b/include/migration/qemu-file.h index d843c00..a923cec 100644 --- a/include/migration/qemu-file.h +++ b/include/migration/qemu-file.h @@ -121,6 +121,7 @@ QEMUFile *qemu_bufopen(const char *mode, QEMUSizedBuffer *input); int qemu_get_fd(QEMUFile *f); int qemu_fclose(QEMUFile *f); int64_t qemu_ftell(QEMUFile *f); +int64_t qemu_ftell_fast(QEMUFile *f); void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size); void qemu_put_byte(QEMUFile *f, int v); /* diff --git a/migration/qemu-file.c b/migration/qemu-file.c index edc2830..e66e557 100644 --- a/migration/qemu-file.c +++ b/migration/qemu-file.c @@ -452,6 +452,22 @@ int qemu_get_byte(QEMUFile *f) return result; } +int64_t qemu_ftell_fast(QEMUFile *f) +{ + int64_t ret = f->pos; + int i; + + if (f->ops->writev_buffer) { + for (i = 0; i < f->iovcnt; i++) { + ret += f->iov[i].iov_len; + } + } else { + ret += f->buf_index; + } + + return ret; +} + int64_t qemu_ftell(QEMUFile *f) { qemu_fflush(f); |
