qerror: don't delay error message construction

Today, the error message is only constructed when it's used. This commit
changes qerror to construct the error message when the error object is
built (ie. when the error is reported).

This eliminates the need of storing a pointer to qerror_table[], which
will be dropped soon, and also simplifies the code.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>

diff --git a/qerror.c b/qerror.c
index d073ed7c5a75ee09852637773f3bf71364b67966..a254f88531b3bfcb6ca60eaeac5b36e96f8641b3 100644 (file)
--- a/qerror.c
+++ b/qerror.c
@@ -385,22 +385,6 @@ static QDict *error_obj_from_fmt_no_fail(const char *fmt, va_list *va)
     return ret;
 }
 
-static const QErrorStringTable *get_desc_no_fail(const char *fmt)
-{
-    int i;
-
-    // FIXME: inefficient loop
-
-    for (i = 0; qerror_table[i].error_fmt; i++) {
-        if (strcmp(qerror_table[i].error_fmt, fmt) == 0) {
-            return &qerror_table[i];
-        }
-    }
-
-    fprintf(stderr, "error format '%s' not found\n", fmt);
-    abort();
-}
-
 /**
  * qerror_from_info(): Create a new QError from error information
  *
@@ -414,7 +398,7 @@ static QError *qerror_from_info(const char *fmt, va_list *va)
     loc_save(&qerr->loc);
 
     qerr->error = error_obj_from_fmt_no_fail(fmt, va);
-    qerr->entry = get_desc_no_fail(fmt);
+    qerr->err_msg = qerror_format(fmt, qerr->error);
 
     return qerr;
 }
@@ -519,7 +503,7 @@ char *qerror_format(const char *fmt, QDict *error)
  */
 QString *qerror_human(const QError *qerror)
 {
-    return qerror_format_desc(qerror->error, qerror->entry);
+    return qstring_from_str(qerror->err_msg);
 }
 
 /**
@@ -566,19 +550,13 @@ struct Error
 void qerror_report_err(Error *err)
 {
     QError *qerr;
-    int i;
 
     qerr = qerror_new();
     loc_save(&qerr->loc);
     QINCREF(err->obj);
     qerr->error = err->obj;
 
-    for (i = 0; qerror_table[i].error_fmt; i++) {
-        if (strcmp(qerror_table[i].error_fmt, err->fmt) == 0) {
-            qerr->entry = &qerror_table[i];
-            break;
-        }
-    }
+    qerr->err_msg = qerror_format(err->fmt, qerr->error);
 
     if (monitor_cur_is_qmp()) {
         monitor_set_error(cur_mon, qerr);
@@ -619,5 +597,6 @@ static void qerror_destroy_obj(QObject *obj)
     qerr = qobject_to_qerror(obj);
 
     QDECREF(qerr->error);
+    g_free(qerr->err_msg);
     g_free(qerr);
 }

diff --git a/qerror.h b/qerror.h
index aec76b24e11be8ba0d08b5701892ab24bd2f58a3..de8497d1eb4783c1b4aad2c5154c81179cadf148 100644 (file)
--- a/qerror.h
+++ b/qerror.h
@@ -27,7 +27,7 @@ typedef struct QError {
     QObject_HEAD;
     QDict *error;
     Location loc;
-    const QErrorStringTable *entry;
+    char *err_msg;
 } QError;
 
 QString *qerror_human(const QError *qerror);