libxl: abolish libxl_ctx_postfork

libxl's task has become too complicated (particularly in the presence
of both forking and multithreading) to support reuse of the same
libxl_ctx after fork.

So abolish libxl_ctx_fork.  xl instead simply initialises a new
libxl_ctx.

Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <Ian.Jackson@eu.citrix.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/tools/libxl/xl.h b/tools/libxl/xl.h
index 0a3d628d45..7e258d5408 100644
--- a/tools/libxl/xl.h
+++ b/tools/libxl/xl.h
@@ -105,6 +105,7 @@ struct cmd_spec *cmdtable_lookup(const char *s);
 
 extern libxl_ctx *ctx;
 extern xentoollog_logger_stdiostream *logger;
+void postfork(void);
 
 /* global options */
 extern int autoballoon;