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hw/xen: Add xs_node_read() helper function

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This returns the full contents of the node, having created the node path
from the printf-style format string provided in its arguments.

This will save various callers from having to do so for themselves (and
from using xs_node_scanf() with the non-portable %ms format string.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
[remove double newline and constify trace parameters]
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reviewed-by: Anthony PERARD <anthony.perard@vates.tech>
This commit is contained in:
David Woodhouse 2025-01-10 10:35:30 +01:00
parent 7433709a14
commit e6cdeee959
3 changed files with 32 additions and 0 deletions
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hw/xen/trace-events
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@ -39,6 +39,7 @@ xs_node_create(const char *node) "%s"
xs_node_destroy(const char *node) "%s"
xs_node_vprintf(char *path, char *value) "%s %s"
xs_node_vscanf(char *path, char *value) "%s %s"
xs_node_read(const char *path, const char *value) "%s %s"
xs_node_watch(char *path) "%s"
xs_node_unwatch(char *path) "%s"