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2019-09-24tests/qapi-schema: Demonstrate suboptimal lexical errorsMarkus Armbruster5-1/+4
The error message for forgotten quotes around a name shows just the name's first character, which isn't as nice as it could be. Same for attempting to use a number. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190914153506.2151-7-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2019-09-24tests/qapi-schema: Demonstrate insufficient 'if' checkingMarkus Armbruster16-0/+92
Cover invalid 'if' in struct members, features, union and alternate branches. Four out of four are broken. Mark FIXME. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190914153506.2151-6-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> [Comment typo fixed]
2019-09-24tests/qapi-schema: Demonstrate broken discriminator errorsMarkus Armbruster4-10/+6
When the union definition's base is an object, some error messages show it as an OrderedDict. Oops. Mark FIXME. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190914153506.2151-5-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2019-09-24tests/qapi-schema: Demonstrate misleading optional tag errorMarkus Armbruster6-2/+16
Test flat-union-optional-discriminator declares its union tag as '*switch': 'Enum', and points to it with 'discriminator': '*switch'. This gets rejected as "discriminator of flat union 'MyUnion' uses invalid name '*switch'". Correct; member 'discriminator' doesn't accept a '*' prefix. However, this merely tests name validity checking, which we already cover elsewhere. More interesting is testing the valid name 'switch'. This reports "discriminator 'switch' is not a member of base struct 'Base'", which is misleading. Copy the existing 'discriminator': '*switch' test to flat-union-discriminator-bad-name, and rewrite its comment. Change flat-union-optional-discriminator to test 'discriminator': 'switch', and mark it FIXME. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190914153506.2151-4-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2019-09-24tests/qapi-schema: Delete two redundant testsMarkus Armbruster9-9/+1
Tests duplicate-key and double-data test the same thing. The former predates the latter, and it has a better name. Delete the latter, and tweak the former's comment. Tests include-format-err and include-extra-junk test the same thing. The former predates the latter, but the latter has a better name and a comment. Delete the former. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190914153506.2151-3-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2019-09-24tests/qapi-schema: Cover unknown pragmaMarkus Armbruster4-0/+3
Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190914153506.2151-2-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2019-09-24qapi: Tweak code to match docs/devel/qapi-code-gen.txtMarkus Armbruster6-6/+6
The previous commit made qapi-code-gen.txt define "(top-level) expression" as either "directive" or "definition". The code still uses "expression" when it really means "definition". Tidy up. The previous commit made qapi-code-gen.txt use "object" rather than "dictionary". The code still uses "dictionary". Tidy up. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190913201349.24332-17-armbru@redhat.com>
2019-09-24qapi: Adjust frontend errors to say enum value, not memberMarkus Armbruster2-2/+2
For consistency with docs/devel/qapi-code-gen.txt. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190913201349.24332-12-armbru@redhat.com>
2019-09-24qapi: Permit omitting all flat union branchesMarkus Armbruster6-4/+18
Absent flat union branches default to the empty struct (since commit 800877bb16 "qapi: allow empty branches in flat unions"). But an attempt to omit all of them is rejected with "Union 'FOO' has no branches". Harmless oddity, but it's easy to avoid, so do that. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190913201349.24332-11-armbru@redhat.com> [Commit message typo fixed]
2019-09-24qapi: Permit alternates with just one branchMarkus Armbruster4-6/+10
A union or alternate without branches makes no sense and doesn't work: it can't be instantiated. A union or alternate with just one branch works, but is degenerate. We accept the former, but reject the latter. Weird. docs/devel/qapi-code-gen.txt doesn't mention the difference. It claims an alternate definition is "is similar to a simple union type". Permit degenerate alternates to make them consistent with unions. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190913201349.24332-10-armbru@redhat.com>
2019-09-24qapi: Permit 'boxed' with empty typeMarkus Armbruster6-5/+6
We reject empty types with 'boxed': true. We don't really need that to work, but making it work is actually simpler than rejecting it, so do that. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190913201349.24332-9-armbru@redhat.com>
2019-09-24qapi: Drop support for escape sequences other than \\Markus Armbruster17-34/+4
Since the previous commit restricted strings to printable ASCII, \uXXXX's only use is obfuscation. Drop it. This leaves \\, \/, \', and \". Since QAPI schema strings are all names, and names are restricted to ASCII letters, digits, hyphen, and underscore, none of them is useful. The latter three have no test coverage. Drop them. Keep \\ to avoid (more) gratuitous incompatibility with JSON. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190913201349.24332-8-armbru@redhat.com>
2019-09-24qapi: Restrict strings to printable ASCIIMarkus Armbruster10-3/+7
RFC 8259 on string contents: All Unicode characters may be placed within the quotation marks, except for the characters that MUST be escaped: quotation mark, reverse solidus, and the control characters (U+0000 through U+001F). The QAPI schema parser accepts both less and more than JSON: it accepts only ASCII with \u (less), and accepts control characters other than LF (new line) unescaped. How it treats unescaped non-ASCII input differs between Python 2 and Python 3. Make it accept strictly less: require printable ASCII. Drop support for \b, \f, \n, \r, \t. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190913201349.24332-7-armbru@redhat.com>
2019-09-24tests/qapi-schema: Demonstrate bad reporting of funny charactersMarkus Armbruster2-2/+3
Invalid name 'not\\possible' is reported as 'not\possible'. Control characters (quoted or not) are even more confusing. Mark FIXME. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190913201349.24332-6-armbru@redhat.com>
2019-09-24qapi: Drop support for boxed alternate argumentsMarkus Armbruster2-2/+2
Commands and events can define their argument type inline (default) or by referring to another type ('boxed': true, since commit c818408e44 "qapi: Implement boxed types for commands/events", v2.7.0). The unboxed inline definition is an (anonymous) struct type. The boxed type may be a struct, union, or alternate type. The latter is problematic: docs/interop/qemu-spec.txt requires the value of the 'data' key to be a json-object, but any non-degenerate alternate type has at least one branch that isn't. Fortunately, we haven't made use of alternates in this context outside tests/. Drop support for them. QAPISchemaAlternateType.is_empty() is now unused. Drop it, too. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190913201349.24332-4-armbru@redhat.com>
2019-06-12tests/qapi-schema: Error case tests for features in structsKevin Wolf24-0/+31
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20190606153803.5278-4-armbru@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2019-06-12tests/qapi-schema: Test for good feature lists in structsKevin Wolf3-0/+86
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20190606153803.5278-3-armbru@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2019-06-12qapi: Add feature flags to struct typesKevin Wolf3-3/+4
Sometimes, the behaviour of QEMU changes without a change in the QMP syntax (usually by allowing values or operations that previously resulted in an error). QMP clients may still need to know whether they can rely on the changed behavior. Let's add feature flags to the QAPI schema language, so that we can make such changes visible with schema introspection. An example for a schema definition using feature flags looks like this: { 'struct': 'TestType', 'data': { 'number': 'int' }, 'features': [ 'allow-negative-numbers' ] } Introspection information then looks like this: { "name": "TestType", "meta-type": "object", "members": [ { "name": "number", "type": "int" } ], "features": [ "allow-negative-numbers" ] } This patch implements feature flags only for struct types. We'll implement them more widely as needed. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20190606153803.5278-2-armbru@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2019-03-05qapi: Fix array first used in a different moduleMarkus Armbruster2-0/+7
We generally put implicitly defined types in whatever module triggered their definition. This is wrong for array types, as the included test case demonstrates. Let's have a closer look at it. Type 'Status' is defined sub-sub-module.json. Array type ['Status'] occurs in main module qapi-schema-test.json and in include/sub-module.json. The main module's use is first, so the array type gets put into the main module. The generated C headers define StatusList in qapi-types.h. But include/qapi-types-sub-module.h uses it without including qapi-types.h. Oops. To fix that, put the array type into its element type's module. Now StatusList gets generated into qapi-types-sub-module.h, which all its users include. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190301154051.23317-8-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2019-03-05tests/qapi-schema: Cover forward reference to sub-moduleMarkus Armbruster2-1/+7
The forward reference from the main module to the sub-module works fine, except for an issue visible in qapi-schema-test.out: the array type wrapped around the forward reference ends up in the main module, not the sub-module. The next commit will explain why that's bad, and fix it. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190301154051.23317-7-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2019-03-05tests: Rename UserDefNativeListUnion to UserDefListUnionMarkus Armbruster2-7/+7
The lists in UserDefNativeListUnion aren't "native", they're lists of built-in types. The next commit will add a list of a user-defined type. Drop "Native", and adjust the tests using the type. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190301154051.23317-6-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2019-03-05qapi: Fix code generation for sub-modules in other directoriesMarkus Armbruster10-25/+23
The #include directives to pull in sub-modules use file names relative to the main module. Works only when all modules are in the same directory, or the main module's output directory is in the compiler's include path. Use relative file names instead. The dummy variable we generate to avoid empty .o files has an invalid name for sub-modules in other directories. Fix that. Both messed up in commit 252dc3105fc "qapi: Generate separate .h, .c for each module". Escaped testing because tests/qapi-schema-test.json doesn't cover sub-modules in other directories, only tests/qapi-schema/include-relpath.json does, and we generate and compile C code only for the former, not the latter. Fold the latter into the former. This would have caught the mistakes fixed in this commit. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190301154051.23317-5-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2019-03-05tests/qapi-schema: Cover conditional arraysMarkus Armbruster2-2/+4
Commit 967c885108f neglected to cover arrays of conditional types. Do that now. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190301154051.23317-3-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2019-03-05tests/qapi-schema: Make test-qapi.py print arraysMarkus Armbruster2-0/+12
The next few commits mess with array types, and having the changes exposed in output of test-qapi.py will be useful. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190301154051.23317-2-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> [Rationale added to commit message]
2019-02-18qapi: Clean up modular built-in code generation a bitMarkus Armbruster11-0/+11
We neglect to call .visit_module() for the special module we use for built-ins. Harmless, but clean it up anyway. The tests/qapi-schema/*.out now show the built-in module as 'module None'. Subclasses of QAPISchemaModularCVisitor need to ._add_module() this special module to enable code generation for built-ins. When this hasn't been done, QAPISchemaModularCVisitor.visit_module() does nothing for the special module. That looks like built-ins could accidentally be generated into the wrong module when a subclass neglects to call ._add_module(). Can't happen, because built-ins are all visited before any other module. But that's non-obvious. Switch off code generation explicitly. Rename QAPISchemaModularCVisitor._begin_module() to ._begin_user_module(). New QAPISchemaModularCVisitor._is_builtin_module(), for clarity. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20190214152251.2073-4-armbru@redhat.com>
2018-12-14qapi: add condition to variants documentationMarc-André Lureau3-4/+7
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20181213123724.4866-21-marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-12-14qapi: add 'If:' condition to struct members documentationMarc-André Lureau3-1/+4
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20181213123724.4866-20-marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-12-14qapi: add 'If:' condition to enum values documentationMarc-André Lureau3-2/+5
Use a common function to generate the "If:..." line. While at it, get rid of the existing \n\n (no idea why it was there). Use a line-break in member description, this seems to look slightly better in the plaintext version. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20181213123724.4866-19-marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-12-13qapi: add 'if' to alternate membersMarc-André Lureau2-1/+4
Add 'if' key to alternate members: { 'alternate': 'TestIfAlternate', 'data': { 'alt': { 'type': 'TestStruct', 'if': 'COND' } } } Generated code is not changed by this patch but with "qapi: add #if conditions to generated code". Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20181213123724.4866-17-marcandre.lureau@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-12-13qapi: add 'if' to union membersMarc-André Lureau3-1/+8
Add 'if' key to union members: { 'union': 'TestIfUnion', 'data': 'mem': { 'type': 'str', 'if': 'COND'} } The generated code remains unconditional for now. Later patches generate the conditionals. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20181213123724.4866-16-marcandre.lureau@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-12-13qapi: Add 'if' to implicit struct membersMarc-André Lureau7-3/+34
The generated code is for now *unconditional*. Later patches generate the conditionals. Note that union discriminators may not have 'if' conditionals. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20181213123724.4866-14-marcandre.lureau@redhat.com> Message-Id: <20181213123724.4866-15-marcandre.lureau@redhat.com> [Patches squashed, commit message tweaked] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-12-13qapi: add a dictionary form for TYPEMarc-André Lureau28-8/+47
Wherever a struct/union/alternate/command/event member with NAME: TYPE form is accepted, desugar it to a NAME: { 'type': TYPE } form. This will allow to add new member details, such as 'if' in the following patch to introduce conditionals, or 'default' for default values etc. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20181213123724.4866-13-marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-12-13qapi: add 'if' to enum membersMarc-André Lureau8-3/+12
QAPISchemaMember gains .ifcond for enum members: inherited classes, such as QAPISchemaObjectTypeMember, will thus have an ifcond member after this (those different types will also use the .ifcond to store the condition and generate conditional code in the following patches). The generated code remains unconditional for now. Later patches generate the conditionals. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20181213123724.4866-10-marcandre.lureau@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-12-13qapi: add a dictionary form with 'name' key for enum membersMarc-André Lureau10-3/+8
Desugar the enum NAME form to { 'name': NAME }. This will allow to add new enum members, such as 'if' in the following patch. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20181213123724.4866-7-marcandre.lureau@redhat.com> Message-Id: <20181213123724.4866-8-marcandre.lureau@redhat.com> Message-Id: <20181213123724.4866-9-marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> [Harmless accidental move backed out, long line wrapped, patches squashed] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-12-13qapi: improve reporting of unknown or missing keysMarc-André Lureau4-2/+5
Report the set of missing or unknown keys. And give a hint about the accepted keys. The error message for multiple meta type members (visible in tests/qapi-schema/double-type.err) is not improved. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20181213123724.4866-6-marcandre.lureau@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-12-13tests: print enum type members more like object type membersMarc-André Lureau12-27/+149
Commit 93bda4dd461 changed the internal representation of enum type members from str to QAPISchemaMember, but we still print only a string. Has been good enough, as the name is the member's only attribute of interest, but that's about to change. To prepare, print them more like object type members. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20181213123724.4866-4-marcandre.lureau@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-12-13qapi: change enum visitor and gen_enum* to take QAPISchemaMemberMarc-André Lureau1-2/+2
This will allow to add and access more properties associated with enum values/members, like the associated 'if' condition. We may want to have a specialized type QAPISchemaEnumMember, for now this will do. Modify gen_enum() and gen_enum_lookup() for the same reason. Suggested-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20181213123724.4866-3-marcandre.lureau@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-12-13tests/qapi: Cover commands with 'if' and union / alternate 'data'Marc-André Lureau2-0/+18
Forgotten in commit 967c885108f. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20181208111606.8505-19-marcandre.lureau@redhat.com> Message-Id: <20181208111606.8505-21-marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> [Squashed, commit message adjusted] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-08-31tests: add a qmp success-response testMarc-André Lureau2-0/+4
Verify the usage of this schema feature and the API behaviour. This should be the only case where qmp_dispatch() returns NULL. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-08-15qapi: Fix some pycodestyle-3 complaintsMarkus Armbruster1-6/+7
Fix the following issues: common.py:873:13: E129 visually indented line with same indent as next logical line common.py:1766:5: E741 ambiguous variable name 'l' common.py:1784:1: E305 expected 2 blank lines after class or function definition, found 1 common.py:1833:1: E305 expected 2 blank lines after class or function definition, found 1 common.py:1843:1: E305 expected 2 blank lines after class or function definition, found 1 visit.py:181:18: E127 continuation line over-indented for visual indent Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20180621083551.775-1-armbru@redhat.com> [Fixup squashed in:] Message-ID: <871sd0nzw9.fsf@dusky.pond.sub.org> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2018-07-05Merge remote-tracking branch ↵Peter Maydell1-1/+1
'remotes/armbru/tags/pull-monitor-2018-07-03-v2' into staging Monitor patches for 2018-07-03 # gpg: Signature made Tue 03 Jul 2018 22:20:13 BST # gpg: using RSA key 3870B400EB918653 # gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" # gpg: aka "Markus Armbruster <armbru@pond.sub.org>" # Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653 * remotes/armbru/tags/pull-monitor-2018-07-03-v2: (32 commits) qapi: Polish command flags documentation in qapi-code-gen.txt monitor: Improve some comments qmp: Clean up capability negotiation after commit 02130314d8c qobject: Let qobject_from_jsonf() fail instead of abort qmp: Switch timestamp_put() to qdict_from_jsonf_nofail() qmp: Add some comments around null responses qmp: Simplify monitor_qmp_respond() qmp: Replace get_qmp_greeting() by qmp_greeting() qmp: Replace monitor_json_emitter{,raw}() by qmp_{queue,send}_response() qmp: Use QDict * instead of QObject * for response objects qmp: De-duplicate error response building qobject: New qdict_from_jsonf_nofail() monitor: Peel off @mon_global wrapper monitor: Rename use_io_thr to use_io_thread qmp: Don't let JSON errors jump the queue qmp: Don't let malformed in-band commands jump the queue tests/qmp-test: Demonstrate QMP errors jumping the queue qmp: Simplify code around monitor_qmp_dispatch_one() qmp: Always free QMPRequest with qmp_request_free() qmp: Revert change to handle_qmp_command tracepoint ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-07-03qapi: add 'If:' section to generated documentationMarc-André Lureau3-1/+4
The documentation is generated only once, and doesn't know C pre-conditions. Add 'If:' sections for top-level entities. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180703155648.11933-13-marcandre.lureau@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-07-03qapi: add 'ifcond' to visitor methodsMarc-André Lureau2-5/+24
Modify the test visitor to check correct passing of values. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180703155648.11933-5-marcandre.lureau@redhat.com> [Accidental change to roms/seabios dropped] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-07-03qapi: add 'if' to top-level expressionsMarc-André Lureau18-0/+72
Accept 'if' key in top-level elements, accepted as string or list of string type. The following patches will modify the test visitor to check the value is correctly saved, and generate #if/#endif code (as a single #if/endif line or a series for a list). Example of 'if' key: { 'struct': 'TestIfStruct', 'data': { 'foo': 'int' }, 'if': 'defined(TEST_IF_STRUCT)' } The generated code is for now *unconditional*. Later patches generate the conditionals. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180703155648.11933-2-marcandre.lureau@redhat.com> [Commit message and Documentation improved] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-07-03qmp: Say "out-of-band" instead of "Out-Of-Band"Markus Armbruster1-1/+1
Affects documentation and a few error messages. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180703085358.13941-2-armbru@redhat.com>
2018-06-22qapi: allow empty branches in flat unionsAnton Nefedov6-14/+6
It often happens that just a few discriminator values imply extra data in a flat union. Existing checks did not make possible to leave other values uncovered. Such cases had to be worked around by either stating a dummy (empty) type or introducing another (subset) discriminator enumeration. Both options create redundant entities in qapi files for little profit. With this patch it is not necessary anymore to add designated union fields for every possible value of a discriminator enumeration. Signed-off-by: Anton Nefedov <anton.nefedov@virtuozzo.com> Message-Id: <1529311206-76847-2-git-send-email-anton.nefedov@virtuozzo.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-05-30tests: qapi-schema tests for allow-preconfigIgor Mammedov10-20/+24
use new allow-preconfig parameter in tests and make sure that the QAPISchema can parse allow-preconfig correctly Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <1526058959-41425-1-git-send-email-imammedo@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-05-30qapi: introduce new cmd option "allow-preconfig"Igor Mammedov1-2/+2
New option will be used to allow commands, which are prepared/need to run, during preconfig state. Other commands that should be able to run in preconfig state, should be amended to not expect machine in initialized state or deal with it. For compatibility reasons, commands that don't use new flag 'allow-preconfig' explicitly are not permitted to run in preconfig state but allowed in all other states like they used to be. Within this patch allow following commands in preconfig state: qmp_capabilities query-qmp-schema query-commands query-command-line-options query-status exit-preconfig to allow qmp connection, basic introspection and moving to the next state. PS: set-numa-node and query-hotpluggable-cpus will be enabled later in a separate patches. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Message-Id: <1526057503-39287-1-git-send-email-imammedo@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> [ehabkost: Changed "since 2.13" to "since 3.0"] Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-03-27tests: add oob-test for qapi-schemaPeter Xu6-0/+9
It simply tests the new OOB capability, and make sure the QAPISchema can parse it correctly. Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20180326063901.27425-7-peterx@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Eric Blake <eblake@redhat.com>
2018-03-27tests: let qapi-schema tests detect oobPeter Xu5-16/+16
The allow_oob parameter was passed in but not used in tests. Now reflect that in the tests, so we need to touch up other command testers with that new change. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20180326063901.27425-6-peterx@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Eric Blake <eblake@redhat.com>