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[Qemu-devel] [PATCH 4/5] qga: handle G_IO_STATUS_AGAIN in ga_channel_wri
From: |
Denis V. Lunev |
Subject: |
[Qemu-devel] [PATCH 4/5] qga: handle G_IO_STATUS_AGAIN in ga_channel_write_all() |
Date: |
Mon, 5 Oct 2015 17:57:38 +0300 |
From: Yuri Pudgorodskiy <address@hidden>
glib may return G_IO_STATUS_AGAIN which is actually not an error.
Also fixed a bug when on incomplete write buf pointer was not adjusted.
Signed-off-by: Yuri Pudgorodskiy <address@hidden>
Signed-off-by: Denis V. Lunev <address@hidden>
Reviewed-by: Michael Roth <address@hidden>
---
qga/channel-posix.c | 23 +++++++++++------------
1 file changed, 11 insertions(+), 12 deletions(-)
diff --git a/qga/channel-posix.c b/qga/channel-posix.c
index 8aad4fe..7be92cc 100644
--- a/qga/channel-posix.c
+++ b/qga/channel-posix.c
@@ -217,25 +217,24 @@ GIOStatus ga_channel_write_all(GAChannel *c, const gchar
*buf, gsize size)
GIOStatus status = G_IO_STATUS_NORMAL;
while (size) {
+ g_debug("sending data, count: %d", (int)size);
status = g_io_channel_write_chars(c->client_channel, buf, size,
&written, &err);
- g_debug("sending data, count: %d", (int)size);
- if (err != NULL) {
+ if (status == G_IO_STATUS_NORMAL) {
+ size -= written;
+ buf += written;
+ } else if (status != G_IO_STATUS_AGAIN) {
g_warning("error writing to channel: %s", err->message);
- return G_IO_STATUS_ERROR;
- }
- if (status != G_IO_STATUS_NORMAL) {
- break;
+ return status;
}
- size -= written;
}
- if (status == G_IO_STATUS_NORMAL) {
+ do {
status = g_io_channel_flush(c->client_channel, &err);
- if (err != NULL) {
- g_warning("error flushing channel: %s", err->message);
- return G_IO_STATUS_ERROR;
- }
+ } while (status == G_IO_STATUS_AGAIN);
+
+ if (status != G_IO_STATUS_NORMAL) {
+ g_warning("error flushing channel: %s", err->message);
}
return status;
--
2.1.4
- [Qemu-devel] [PATCH v2 0/5] simplified QEMU guest exec, Denis V. Lunev, 2015/10/08
- [Qemu-devel] [PATCH 5/5] qga: guest-exec simple stdin/stdout/stderr redirection, Denis V. Lunev, 2015/10/08
- [Qemu-devel] [PATCH 4/5] qga: handle G_IO_STATUS_AGAIN in ga_channel_write_all(),
Denis V. Lunev <=
- [Qemu-devel] [PATCH 3/5] qga: handle possible SIGPIPE in guest-file-write, Denis V. Lunev, 2015/10/08
- [Qemu-devel] [PATCH 2/5] qga: guest exec functionality, Denis V. Lunev, 2015/10/08
- [Qemu-devel] [PATCH 1/5] qga: drop guest_file_init helper and replace it with static initializers, Denis V. Lunev, 2015/10/08
- Re: [Qemu-devel] [PATCH v2 0/5] simplified QEMU guest exec, Denis V. Lunev, 2015/10/08