diff options
author | 2016-05-18 13:18:31 +0300 | |
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committer | 2016-05-18 13:42:15 +0300 | |
commit | 437fd90c0250dee670290f9b714253671a990160 (patch) | |
tree | b871786c360704244a07411c69fb58da9ead4a06 /qemu/qapi/qmp-output-visitor.c | |
parent | 5bbd6fe9b8bab2a93e548c5a53b032d1939eec05 (diff) |
These changes are the raw update to qemu-2.6.
Collission happened in the following patches:
migration: do cleanup operation after completion(738df5b9)
Bug fix.(1750c932f86)
kvmclock: add a new function to update env->tsc.(b52baab2)
The code provided by the patches was already in the upstreamed
version.
Change-Id: I3cc11841a6a76ae20887b2e245710199e1ea7f9a
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'qemu/qapi/qmp-output-visitor.c')
-rw-r--r-- | qemu/qapi/qmp-output-visitor.c | 123 |
1 files changed, 68 insertions, 55 deletions
diff --git a/qemu/qapi/qmp-output-visitor.c b/qemu/qapi/qmp-output-visitor.c index efc19d584..d44c67631 100644 --- a/qemu/qapi/qmp-output-visitor.c +++ b/qemu/qapi/qmp-output-visitor.c @@ -1,6 +1,7 @@ /* * Core Definitions for QAPI/QMP Command Registry * + * Copyright (C) 2012-2016 Red Hat, Inc. * Copyright IBM, Corp. 2011 * * Authors: @@ -11,6 +12,7 @@ * */ +#include "qemu/osdep.h" #include "qapi/qmp-output-visitor.h" #include "qapi/visitor-impl.h" #include "qemu/queue.h" @@ -29,7 +31,8 @@ typedef QTAILQ_HEAD(QStack, QStackEntry) QStack; struct QmpOutputVisitor { Visitor visitor; - QStack stack; + QStack stack; /* Stack of containers that haven't yet been finished */ + QObject *root; /* Root of the output visit */ }; #define qmp_output_add(qov, name, value) \ @@ -41,10 +44,13 @@ static QmpOutputVisitor *to_qov(Visitor *v) return container_of(v, QmpOutputVisitor, visitor); } +/* Push @value onto the stack of current QObjects being built */ static void qmp_output_push_obj(QmpOutputVisitor *qov, QObject *value) { QStackEntry *e = g_malloc0(sizeof(*e)); + assert(qov->root); + assert(value); e->value = value; if (qobject_type(e->value) == QTYPE_QLIST) { e->is_list_head = true; @@ -52,63 +58,51 @@ static void qmp_output_push_obj(QmpOutputVisitor *qov, QObject *value) QTAILQ_INSERT_HEAD(&qov->stack, e, node); } +/* Pop a value off the stack of QObjects being built, and return it. */ static QObject *qmp_output_pop(QmpOutputVisitor *qov) { QStackEntry *e = QTAILQ_FIRST(&qov->stack); QObject *value; + + assert(e); QTAILQ_REMOVE(&qov->stack, e, node); value = e->value; + assert(value); g_free(e); return value; } -static QObject *qmp_output_first(QmpOutputVisitor *qov) -{ - QStackEntry *e = QTAILQ_LAST(&qov->stack, QStack); - - /* FIXME - find a better way to deal with NULL values */ - if (!e) { - return NULL; - } - - return e->value; -} - -static QObject *qmp_output_last(QmpOutputVisitor *qov) -{ - QStackEntry *e = QTAILQ_FIRST(&qov->stack); - return e->value; -} - +/* Add @value to the current QObject being built. + * If the stack is visiting a dictionary or list, @value is now owned + * by that container. Otherwise, @value is now the root. */ static void qmp_output_add_obj(QmpOutputVisitor *qov, const char *name, QObject *value) { - QObject *cur; - - if (QTAILQ_EMPTY(&qov->stack)) { - qmp_output_push_obj(qov, value); - return; - } + QStackEntry *e = QTAILQ_FIRST(&qov->stack); + QObject *cur = e ? e->value : NULL; - cur = qmp_output_last(qov); - - switch (qobject_type(cur)) { - case QTYPE_QDICT: - qdict_put_obj(qobject_to_qdict(cur), name, value); - break; - case QTYPE_QLIST: - qlist_append_obj(qobject_to_qlist(cur), value); - break; - default: - qobject_decref(qmp_output_pop(qov)); - qmp_output_push_obj(qov, value); - break; + if (!cur) { + /* FIXME we should require the user to reset the visitor, rather + * than throwing away the previous root */ + qobject_decref(qov->root); + qov->root = value; + } else { + switch (qobject_type(cur)) { + case QTYPE_QDICT: + assert(name); + qdict_put_obj(qobject_to_qdict(cur), name, value); + break; + case QTYPE_QLIST: + qlist_append_obj(qobject_to_qlist(cur), value); + break; + default: + g_assert_not_reached(); + } } } -static void qmp_output_start_struct(Visitor *v, void **obj, const char *kind, - const char *name, size_t unused, - Error **errp) +static void qmp_output_start_struct(Visitor *v, const char *name, void **obj, + size_t unused, Error **errp) { QmpOutputVisitor *qov = to_qov(v); QDict *dict = qdict_new(); @@ -133,7 +127,7 @@ static void qmp_output_start_list(Visitor *v, const char *name, Error **errp) } static GenericList *qmp_output_next_list(Visitor *v, GenericList **listp, - Error **errp) + size_t size) { GenericList *list = *listp; QmpOutputVisitor *qov = to_qov(v); @@ -148,27 +142,35 @@ static GenericList *qmp_output_next_list(Visitor *v, GenericList **listp, return list ? list->next : NULL; } -static void qmp_output_end_list(Visitor *v, Error **errp) +static void qmp_output_end_list(Visitor *v) { QmpOutputVisitor *qov = to_qov(v); qmp_output_pop(qov); } -static void qmp_output_type_int(Visitor *v, int64_t *obj, const char *name, - Error **errp) +static void qmp_output_type_int64(Visitor *v, const char *name, int64_t *obj, + Error **errp) +{ + QmpOutputVisitor *qov = to_qov(v); + qmp_output_add(qov, name, qint_from_int(*obj)); +} + +static void qmp_output_type_uint64(Visitor *v, const char *name, uint64_t *obj, + Error **errp) { + /* FIXME: QMP outputs values larger than INT64_MAX as negative */ QmpOutputVisitor *qov = to_qov(v); qmp_output_add(qov, name, qint_from_int(*obj)); } -static void qmp_output_type_bool(Visitor *v, bool *obj, const char *name, +static void qmp_output_type_bool(Visitor *v, const char *name, bool *obj, Error **errp) { QmpOutputVisitor *qov = to_qov(v); qmp_output_add(qov, name, qbool_from_bool(*obj)); } -static void qmp_output_type_str(Visitor *v, char **obj, const char *name, +static void qmp_output_type_str(Visitor *v, const char *name, char **obj, Error **errp) { QmpOutputVisitor *qov = to_qov(v); @@ -179,18 +181,31 @@ static void qmp_output_type_str(Visitor *v, char **obj, const char *name, } } -static void qmp_output_type_number(Visitor *v, double *obj, const char *name, +static void qmp_output_type_number(Visitor *v, const char *name, double *obj, Error **errp) { QmpOutputVisitor *qov = to_qov(v); qmp_output_add(qov, name, qfloat_from_double(*obj)); } +static void qmp_output_type_any(Visitor *v, const char *name, QObject **obj, + Error **errp) +{ + QmpOutputVisitor *qov = to_qov(v); + qobject_incref(*obj); + qmp_output_add_obj(qov, name, *obj); +} + +/* Finish building, and return the root object. Will not be NULL. */ QObject *qmp_output_get_qobject(QmpOutputVisitor *qov) { - QObject *obj = qmp_output_first(qov); + /* FIXME: we should require that a visit occurred, and that it is + * complete (no starts without a matching end) */ + QObject *obj = qov->root; if (obj) { qobject_incref(obj); + } else { + obj = qnull(); } return obj; } @@ -204,16 +219,12 @@ void qmp_output_visitor_cleanup(QmpOutputVisitor *v) { QStackEntry *e, *tmp; - /* The bottom QStackEntry, if any, owns the root QObject. See the - * qmp_output_push_obj() invocations in qmp_output_add_obj(). */ - QObject *root = QTAILQ_EMPTY(&v->stack) ? NULL : qmp_output_first(v); - QTAILQ_FOREACH_SAFE(e, &v->stack, node, tmp) { QTAILQ_REMOVE(&v->stack, e, node); g_free(e); } - qobject_decref(root); + qobject_decref(v->root); g_free(v); } @@ -229,10 +240,12 @@ QmpOutputVisitor *qmp_output_visitor_new(void) v->visitor.next_list = qmp_output_next_list; v->visitor.end_list = qmp_output_end_list; v->visitor.type_enum = output_type_enum; - v->visitor.type_int = qmp_output_type_int; + v->visitor.type_int64 = qmp_output_type_int64; + v->visitor.type_uint64 = qmp_output_type_uint64; v->visitor.type_bool = qmp_output_type_bool; v->visitor.type_str = qmp_output_type_str; v->visitor.type_number = qmp_output_type_number; + v->visitor.type_any = qmp_output_type_any; QTAILQ_INIT(&v->stack); |