From 519661ee6514f22b1e289b1c4c8c076378bc4202 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Tue, 10 Jun 2014 16:21:28 +0200 Subject: [PATCH] util: add return value to qemu_iovec_concat_iov This will be necessary later to recognize the case where a request has both dataout and datain. Signed-off-by: Paolo Bonzini --- include/qemu-common.h | 6 +++--- util/iov.c | 10 ++++++---- 2 files changed, 9 insertions(+), 7 deletions(-) diff --git a/include/qemu-common.h b/include/qemu-common.h index 66ceceb2ad..ae76197532 100644 --- a/include/qemu-common.h +++ b/include/qemu-common.h @@ -315,9 +315,9 @@ void qemu_iovec_init_external(QEMUIOVector *qiov, struct iovec *iov, int niov); void qemu_iovec_add(QEMUIOVector *qiov, void *base, size_t len); void qemu_iovec_concat(QEMUIOVector *dst, QEMUIOVector *src, size_t soffset, size_t sbytes); -void qemu_iovec_concat_iov(QEMUIOVector *dst, - struct iovec *src_iov, unsigned int src_cnt, - size_t soffset, size_t sbytes); +size_t qemu_iovec_concat_iov(QEMUIOVector *dst, + struct iovec *src_iov, unsigned int src_cnt, + size_t soffset, size_t sbytes); bool qemu_iovec_is_zero(QEMUIOVector *qiov); void qemu_iovec_destroy(QEMUIOVector *qiov); void qemu_iovec_reset(QEMUIOVector *qiov); diff --git a/util/iov.c b/util/iov.c index 49f88388f8..2b4f46da75 100644 --- a/util/iov.c +++ b/util/iov.c @@ -295,15 +295,15 @@ void qemu_iovec_add(QEMUIOVector *qiov, void *base, size_t len) * of src". * Only vector pointers are processed, not the actual data buffers. */ -void qemu_iovec_concat_iov(QEMUIOVector *dst, - struct iovec *src_iov, unsigned int src_cnt, - size_t soffset, size_t sbytes) +size_t qemu_iovec_concat_iov(QEMUIOVector *dst, + struct iovec *src_iov, unsigned int src_cnt, + size_t soffset, size_t sbytes) { int i; size_t done; if (!sbytes) { - return; + return 0; } assert(dst->nalloc != -1); for (i = 0, done = 0; done < sbytes && i < src_cnt; i++) { @@ -317,6 +317,8 @@ void qemu_iovec_concat_iov(QEMUIOVector *dst, } } assert(soffset == 0); /* offset beyond end of src */ + + return done; } /* -- 2.11.4.GIT