Rusty Russell
2005-Aug-04 12:31 UTC
[Xen-devel] [PATCH 4/11] Add general trace() function to xenstore, for help in debugging in future.
# HG changeset patch
# User Rusty Russell <rusty@rustcorp.com.au>
# Node ID d4ab9ac93104a13a09ebfaa2384281c4e3392e3f
# Parent 70ea61257cebc00212defe1dbed6de26c2edcf30
Add general trace() function to xenstore, for help in debugging in future.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
diff -r 70ea61257ceb -r d4ab9ac93104 tools/xenstore/xenstored_core.c
--- a/tools/xenstore/xenstored_core.c Thu Aug 4 09:28:24 2005
+++ b/tools/xenstore/xenstored_core.c Thu Aug 4 10:34:26 2005
@@ -111,6 +111,8 @@
str = talloc_vasprintf(NULL, fmt, arglist);
va_end(arglist);
+ trace("xenstored corruption: connection id %i: err %s: %s",
+ conn ? (int)conn->id : -1, strerror(saved_errno), str);
eprintf("xenstored corruption: connection id %i: err %s: %s",
conn ? (int)conn->id : -1, strerror(saved_errno), str);
#ifdef TESTING
@@ -228,6 +230,21 @@
write(tracefd, sockmsg_string(data->hdr.msg.type),
strlen(sockmsg_string(data->hdr.msg.type)));
write(tracefd, ")\n", 2);
+}
+
+void trace(const char *fmt, ...)
+{
+ va_list arglist;
+ char *str;
+
+ if (tracefd < 0)
+ return;
+
+ va_start(arglist, fmt);
+ str = talloc_vasprintf(NULL, fmt, arglist);
+ va_end(arglist);
+ write(tracefd, str, strlen(str));
+ talloc_free(str);
}
static bool write_message(struct connection *conn)
diff -r 70ea61257ceb -r d4ab9ac93104 tools/xenstore/xenstored_core.h
--- a/tools/xenstore/xenstored_core.h Thu Aug 4 09:28:24 2005
+++ b/tools/xenstore/xenstored_core.h Thu Aug 4 10:34:26 2005
@@ -147,5 +147,6 @@
void trace_create(const void *data, const char *type);
void trace_destroy(const void *data, const char *type);
void trace_watch_timeout(const struct connection *conn, const char *node, const
char *token);
+void trace(const char *fmt, ...);
#endif /* _XENSTORED_CORE_H */
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