diff options
Diffstat (limited to 'qemu/util/error.c')
| -rw-r--r-- | qemu/util/error.c | 273 |
1 files changed, 0 insertions, 273 deletions
diff --git a/qemu/util/error.c b/qemu/util/error.c deleted file mode 100644 index cae251173..000000000 --- a/qemu/util/error.c +++ /dev/null @@ -1,273 +0,0 @@ -/* - * QEMU Error Objects - * - * Copyright IBM, Corp. 2011 - * Copyright (C) 2011-2015 Red Hat, Inc. - * - * Authors: - * Anthony Liguori <aliguori@us.ibm.com> - * Markus Armbruster <armbru@redhat.com>, - * - * This work is licensed under the terms of the GNU LGPL, version 2. See - * the COPYING.LIB file in the top-level directory. - */ - -#include "qemu/osdep.h" -#include "qapi/error.h" -#include "qemu-common.h" -#include "qemu/error-report.h" - -struct Error -{ - char *msg; - ErrorClass err_class; - const char *src, *func; - int line; - GString *hint; -}; - -Error *error_abort; -Error *error_fatal; - -static void error_handle_fatal(Error **errp, Error *err) -{ - if (errp == &error_abort) { - fprintf(stderr, "Unexpected error in %s() at %s:%d:\n", - err->func, err->src, err->line); - error_report_err(err); - abort(); - } - if (errp == &error_fatal) { - error_report_err(err); - exit(1); - } -} - -static void error_setv(Error **errp, - const char *src, int line, const char *func, - ErrorClass err_class, const char *fmt, va_list ap, - const char *suffix) -{ - Error *err; - int saved_errno = errno; - - if (errp == NULL) { - return; - } - assert(*errp == NULL); - - err = g_malloc0(sizeof(*err)); - err->msg = g_strdup_vprintf(fmt, ap); - if (suffix) { - char *msg = err->msg; - err->msg = g_strdup_printf("%s: %s", msg, suffix); - g_free(msg); - } - err->err_class = err_class; - err->src = src; - err->line = line; - err->func = func; - - error_handle_fatal(errp, err); - *errp = err; - - errno = saved_errno; -} - -void error_set_internal(Error **errp, - const char *src, int line, const char *func, - ErrorClass err_class, const char *fmt, ...) -{ - va_list ap; - - va_start(ap, fmt); - error_setv(errp, src, line, func, err_class, fmt, ap, NULL); - va_end(ap); -} - -void error_setg_internal(Error **errp, - const char *src, int line, const char *func, - const char *fmt, ...) -{ - va_list ap; - - va_start(ap, fmt); - error_setv(errp, src, line, func, ERROR_CLASS_GENERIC_ERROR, fmt, ap, NULL); - va_end(ap); -} - -void error_setg_errno_internal(Error **errp, - const char *src, int line, const char *func, - int os_errno, const char *fmt, ...) -{ - va_list ap; - int saved_errno = errno; - - if (errp == NULL) { - return; - } - - va_start(ap, fmt); - error_setv(errp, src, line, func, ERROR_CLASS_GENERIC_ERROR, fmt, ap, - os_errno != 0 ? strerror(os_errno) : NULL); - va_end(ap); - - errno = saved_errno; -} - -void error_setg_file_open_internal(Error **errp, - const char *src, int line, const char *func, - int os_errno, const char *filename) -{ - error_setg_errno_internal(errp, src, line, func, os_errno, - "Could not open '%s'", filename); -} - -void error_vprepend(Error **errp, const char *fmt, va_list ap) -{ - GString *newmsg; - - if (!errp) { - return; - } - - newmsg = g_string_new(NULL); - g_string_vprintf(newmsg, fmt, ap); - g_string_append(newmsg, (*errp)->msg); - (*errp)->msg = g_string_free(newmsg, 0); -} - -void error_prepend(Error **errp, const char *fmt, ...) -{ - va_list ap; - - va_start(ap, fmt); - error_vprepend(errp, fmt, ap); - va_end(ap); -} - -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 && errp != &error_fatal); - - 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, - const char *src, int line, const char *func, - int win32_err, const char *fmt, ...) -{ - va_list ap; - char *suffix = NULL; - - if (errp == NULL) { - return; - } - - if (win32_err != 0) { - suffix = g_win32_error_message(win32_err); - } - - va_start(ap, fmt); - error_setv(errp, src, line, func, ERROR_CLASS_GENERIC_ERROR, - fmt, ap, suffix); - va_end(ap); - - g_free(suffix); -} - -#endif - -Error *error_copy(const Error *err) -{ - Error *err_new; - - err_new = g_malloc0(sizeof(*err)); - err_new->msg = g_strdup(err->msg); - err_new->err_class = err->err_class; - err_new->src = err->src; - err_new->line = err->line; - err_new->func = err->func; - if (err->hint) { - err_new->hint = g_string_new(err->hint->str); - } - - return err_new; -} - -ErrorClass error_get_class(const Error *err) -{ - return err->err_class; -} - -const char *error_get_pretty(Error *err) -{ - return err->msg; -} - -void error_report_err(Error *err) -{ - error_report("%s", error_get_pretty(err)); - if (err->hint) { - error_printf_unless_qmp("%s", err->hint->str); - } - error_free(err); -} - -void error_reportf_err(Error *err, const char *fmt, ...) -{ - va_list ap; - - va_start(ap, fmt); - error_vprepend(&err, fmt, ap); - va_end(ap); - error_report_err(err); -} - -void error_free(Error *err) -{ - if (err) { - g_free(err->msg); - if (err->hint) { - g_string_free(err->hint, true); - } - g_free(err); - } -} - -void error_free_or_abort(Error **errp) -{ - assert(errp && *errp); - error_free(*errp); - *errp = NULL; -} - -void error_propagate(Error **dst_errp, Error *local_err) -{ - if (!local_err) { - return; - } - error_handle_fatal(dst_errp, local_err); - if (dst_errp && !*dst_errp) { - *dst_errp = local_err; - } else { - error_free(local_err); - } -} |