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util: Allow set_subprogram_name() to take a printf() format string.
[sliver-openvswitch.git]
/
lib
/
util.c
diff --git
a/lib/util.c
b/lib/util.c
index
b800455
..
a32c80a
100644
(file)
--- a/
lib/util.c
+++ b/
lib/util.c
@@
-399,14
+399,26
@@
get_subprogram_name(void)
return name ? name : "";
}
return name ? name : "";
}
-/* Sets
'name' as the name of the currently running thread or process. (This
- *
appears in log messages and may also be visible in system process listings
- * and debuggers.) */
+/* Sets
the formatted value of 'format' as the name of the currently running
+ *
thread or process. (This appears in log messages and may also be visible in
+ *
system process listings
and debuggers.) */
void
void
-set_subprogram_name(const char *
name
)
+set_subprogram_name(const char *
format, ...
)
{
{
- const char *pname = name[0] ? name : program_name;
- free(subprogram_name_set(xstrdup(name)));
+ char *pname;
+
+ if (format) {
+ va_list args;
+
+ va_start(args, format);
+ pname = xvasprintf(format, args);
+ va_end(args);
+ } else {
+ pname = xstrdup(program_name);
+ }
+
+ free(subprogram_name_set(pname));
+
#if HAVE_GLIBC_PTHREAD_SETNAME_NP
pthread_setname_np(pthread_self(), pname);
#elif HAVE_NETBSD_PTHREAD_SETNAME_NP
#if HAVE_GLIBC_PTHREAD_SETNAME_NP
pthread_setname_np(pthread_self(), pname);
#elif HAVE_NETBSD_PTHREAD_SETNAME_NP