[PULL,3/3] qapi: qga: Clarify when out-data and err-data are populated

Commit Message

Konstantin Kostiuk Oct. 11, 2023, 2:20 p.m. UTC

From: Daniel Xu <[e-mail]>

If output is being captured for a guest-exec invocation, the out-data
and err-data fields of guest-exec-status are only populated after the
process is reaped. This is somewhat counter intuitive and too late to
change. Thus, it would be good to document the behavior.

Signed-off-by: Daniel Xu <[e-mail]>
Reviewed-by: Konstantin Kostiuk <[e-mail]>
Signed-off-by: Konstantin Kostiuk <[e-mail]>
---
 qga/qapi-schema.json | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

Patch

diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json
index b720dd4379..876e2a8ea8 100644
--- a/qga/qapi-schema.json
+++ b/qga/qapi-schema.json
@@ -1220,11 +1220,13 @@ 
 # @signal: signal number (linux) or unhandled exception code (windows)
 #     if the process was abnormally terminated.
 #
-# @out-data: base64-encoded stdout of the process
+# @out-data: base64-encoded stdout of the process. This field will only
+#     be populated after the process exits.
 #
-# @err-data: base64-encoded stderr of the process Note: @out-data and
+# @err-data: base64-encoded stderr of the process. Note: @out-data and
 #     @err-data are present only if 'capture-output' was specified for
-#     'guest-exec'
+#     'guest-exec'. This field will only be populated after the process
+#     exits.
 #
 # @out-truncated: true if stdout was not fully captured due to size
 #     limitation.