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/*
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* QEMU Error Objects
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*
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* Copyright IBM, Corp. 2011
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*
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* Authors:
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* Anthony Liguori <aliguori@us.ibm.com>
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*
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* This work is licensed under the terms of the GNU LGPL, version 2. See
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* the COPYING.LIB file in the top-level directory.
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*/
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#include "qemu-common.h" |
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#include "qapi/error.h" |
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#include "qapi/qmp/qjson.h" |
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#include "qapi/qmp/qdict.h" |
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#include "qapi-types.h" |
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#include "qapi/qmp/qerror.h" |
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struct Error
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{ |
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char *msg;
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ErrorClass err_class; |
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}; |
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void error_set(Error **errp, ErrorClass err_class, const char *fmt, ...) |
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{ |
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Error *err; |
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va_list ap; |
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if (errp == NULL) { |
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return;
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} |
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assert(*errp == NULL);
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err = g_malloc0(sizeof(*err));
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va_start(ap, fmt); |
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err->msg = g_strdup_vprintf(fmt, ap); |
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va_end(ap); |
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err->err_class = err_class; |
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*errp = err; |
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} |
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void error_set_errno(Error **errp, int os_errno, ErrorClass err_class, |
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const char *fmt, ...) |
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{ |
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Error *err; |
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char *msg1;
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va_list ap; |
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if (errp == NULL) { |
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return;
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} |
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assert(*errp == NULL);
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err = g_malloc0(sizeof(*err));
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va_start(ap, fmt); |
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msg1 = g_strdup_vprintf(fmt, ap); |
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if (os_errno != 0) { |
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err->msg = g_strdup_printf("%s: %s", msg1, strerror(os_errno));
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g_free(msg1); |
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} else {
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err->msg = msg1; |
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} |
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va_end(ap); |
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err->err_class = err_class; |
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*errp = err; |
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} |
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Error *error_copy(const Error *err)
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{ |
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Error *err_new; |
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err_new = g_malloc0(sizeof(*err));
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err_new->msg = g_strdup(err->msg); |
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err_new->err_class = err->err_class; |
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return err_new;
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} |
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bool error_is_set(Error **errp)
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{ |
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return (errp && *errp);
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} |
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ErrorClass error_get_class(const Error *err)
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{ |
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return err->err_class;
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} |
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const char *error_get_pretty(Error *err) |
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{ |
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return err->msg;
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} |
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void error_free(Error *err)
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{ |
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if (err) {
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g_free(err->msg); |
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g_free(err); |
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} |
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} |
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void error_propagate(Error **dst_err, Error *local_err)
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{ |
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if (dst_err && !*dst_err) {
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*dst_err = local_err; |
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} else if (local_err) { |
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error_free(local_err); |
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} |
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} |