kata-containers/s390-tools
1
0
Fork 0
mirror of https://github.com/ibm-s390-linux/s390-tools.git synced 2026-08-05 02:14:52 +00:00
Code Issues Packages Projects Releases Wiki Activity

zdev: Add helper to report warnings only once

Browse Source 
Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Peter Oberparleiter
2019-07-31 13:37:46 +02:00
committed by Jan Höppner
parent 8bf5f8d0e2
commit 5693c16894
2 changed files with 31 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
zdev/src/misc.c
View File

@@ -57,6 +57,7 @@ unsigned long longrun_total;
unsigned long longrun_current;
static struct util_list *delayed_messages;
static struct util_list *warn_once_messages;
static FILE *dryrun_file;
static FILE *dryrun_get_file(void)
@@ -245,6 +246,7 @@ static void dryrun_print(void)
void misc_exit(void)
{
strlist_free(delayed_messages);
strlist_free(warn_once_messages);
if (dryrun_file) {
if (verbose)
dryrun_print();
@@ -362,6 +364,29 @@ void _warn(const char *format, ...)
va_end(args);
}
/* Report a warning: print an error message to standard error. Only print each
* warning once. */
void _warn_once(const char *format, ...)
{
va_list args;
char *str;
va_start(args, format);
if (vasprintf(&str, format, args) == -1)
oom();
va_end(args);
/* Check if message was printed before. */
if (!warn_once_messages)
warn_once_messages = strlist_new();
if (!strlist_find(warn_once_messages, str)) {
fprintf(stderr, "%s", str);
strlist_add(warn_once_messages, "%s", str);
}
free(str);
}
/* Print an error message indicating an out-of-memory situation and exit. */
void oom(void)
{