diff options
Diffstat (limited to 'util/error.c')
| -rw-r--r-- | util/error.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/util/error.c b/util/error.c index cdb726ce81..9dd474f3be 100644 --- a/util/error.c +++ b/util/error.c @@ -20,6 +20,7 @@ struct Error ErrorClass err_class; const char *src, *func; int line; + GString *hint; }; Error *error_abort; @@ -115,6 +116,28 @@ void error_setg_file_open_internal(Error **errp, "Could not open '%s'", filename); } +void error_append_hint(Error **errp, const char *fmt, ...) +{ + va_list ap; + int saved_errno = errno; + Error *err; + + if (!errp) { + return; + } + err = *errp; + assert(err && errp != &error_abort); + + if (!err->hint) { + err->hint = g_string_new(NULL); + } + va_start(ap, fmt); + g_string_append_vprintf(err->hint, fmt, ap); + va_end(ap); + + errno = saved_errno; +} + #ifdef _WIN32 void error_setg_win32_internal(Error **errp, @@ -151,6 +174,9 @@ Error *error_copy(const Error *err) err_new = g_malloc0(sizeof(*err)); err_new->msg = g_strdup(err->msg); err_new->err_class = err->err_class; + if (err->hint) { + err_new->hint = g_string_new(err->hint->str); + } return err_new; } @@ -168,6 +194,9 @@ const char *error_get_pretty(Error *err) void error_report_err(Error *err) { error_report("%s", error_get_pretty(err)); + if (err->hint) { + error_printf_unless_qmp("%s\n", err->hint->str); + } error_free(err); } @@ -175,6 +204,9 @@ void error_free(Error *err) { if (err) { g_free(err->msg); + if (err->hint) { + g_string_free(err->hint, true); + } g_free(err); } } |