[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 3/3] tools/libxl: run_helper - add #define for arguments.
Describe what the four (or more in the future) arguments are for. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> --- tools/libxl/libxl_save_callout.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/tools/libxl/libxl_save_callout.c b/tools/libxl/libxl_save_callout.c index 3af99af..45b9727 100644 --- a/tools/libxl/libxl_save_callout.c +++ b/tools/libxl/libxl_save_callout.c @@ -119,13 +119,22 @@ void libxl__save_helper_init(libxl__save_helper_state *shs) /*----- helper execution -----*/ +/* + * Both save and restore share four parameters: + * 1) Path to libxl-save-helper. + * 2) --[restore|save]-domain. + * 3) stream file descriptor. + * n) save/restore specific parameters. + * 4) A \0 at the end. + */ +#define HELPER_NR_ARGS 4 static void run_helper(libxl__egc *egc, libxl__save_helper_state *shs, const char *mode_arg, int stream_fd, const int *preserve_fds, int num_preserve_fds, const unsigned long *argnums, int num_argnums) { STATE_AO_GC(shs->ao); - const char *args[4 + num_argnums]; + const char *args[HELPER_NR_ARGS + num_argnums]; const char **arg = args; int i, rc; -- 2.4.3 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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