[12/16] qapi: Generate FOO_str() macro for QAPI enum FOO

The next commit will put it to use.  May look pointless now, but we're
going to change the FOO_lookup's type, and then it'll help.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 block.c                      | 1 -
 block/blkdebug.c             | 1 -
 block/file-posix.c           | 1 -
 block/file-win32.c           | 1 -
 block/gluster.c              | 1 -
 block/parallels.c            | 1 -
 block/qcow2.c                | 1 -
 block/quorum.c               | 1 -
 blockdev.c                   | 1 -
 crypto/block-luks.c          | 1 -
 docs/devel/qapi-code-gen.txt | 3 +++
 hmp.c                        | 1 -
 include/qapi/util.h          | 1 +
 migration/global_state.c     | 1 -
 migration/migration.c        | 1 -
 qapi/qapi-util.c             | 8 +++++++-
 qapi/qapi-visit-core.c       | 1 -
 qemu-img.c                   | 1 -
 qemu-nbd.c                   | 1 -
 scripts/qapi-event.py        | 1 +
 scripts/qapi-types.py        | 4 ++++
 scripts/qapi.py              | 3 +++
 tests/test-qapi-util.c       | 1 -
 tpm.c                        | 1 -
 util/keyval.c                | 1 -
 25 files changed, 19 insertions(+), 20 deletions(-)

----- Original Message -----
> The next commit will put it to use.  May look pointless now, but we're
> going to change the FOO_lookup's type, and then it'll help.
> 
> Signed-off-by: Markus Armbruster <armbru@redhat.com>

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>

> ---
>  block.c                      | 1 -
>  block/blkdebug.c             | 1 -
>  block/file-posix.c           | 1 -
>  block/file-win32.c           | 1 -
>  block/gluster.c              | 1 -
>  block/parallels.c            | 1 -
>  block/qcow2.c                | 1 -
>  block/quorum.c               | 1 -
>  blockdev.c                   | 1 -
>  crypto/block-luks.c          | 1 -
>  docs/devel/qapi-code-gen.txt | 3 +++
>  hmp.c                        | 1 -
>  include/qapi/util.h          | 1 +
>  migration/global_state.c     | 1 -
>  migration/migration.c        | 1 -
>  qapi/qapi-util.c             | 8 +++++++-
>  qapi/qapi-visit-core.c       | 1 -
>  qemu-img.c                   | 1 -
>  qemu-nbd.c                   | 1 -
>  scripts/qapi-event.py        | 1 +
>  scripts/qapi-types.py        | 4 ++++
>  scripts/qapi.py              | 3 +++
>  tests/test-qapi-util.c       | 1 -
>  tpm.c                        | 1 -
>  util/keyval.c                | 1 -
>  25 files changed, 19 insertions(+), 20 deletions(-)
> 
> diff --git a/block.c b/block.c
> index dd0efa2..2d12131 100644
> --- a/block.c
> +++ b/block.c
> @@ -42,7 +42,6 @@
>  #include "qapi-event.h"
>  #include "qemu/cutils.h"
>  #include "qemu/id.h"
> -#include "qapi/util.h"
>  
>  #ifdef CONFIG_BSD
>  #include <sys/ioctl.h>
> diff --git a/block/blkdebug.c b/block/blkdebug.c
> index f1bbee9..b370fce 100644
> --- a/block/blkdebug.c
> +++ b/block/blkdebug.c
> @@ -32,7 +32,6 @@
>  #include "qapi/qmp/qbool.h"
>  #include "qapi/qmp/qdict.h"
>  #include "qapi/qmp/qstring.h"
> -#include "qapi/util.h"
>  #include "sysemu/qtest.h"
>  
>  typedef struct BDRVBlkdebugState {
> diff --git a/block/file-posix.c b/block/file-posix.c
> index 97e8a92..d81eccc 100644
> --- a/block/file-posix.c
> +++ b/block/file-posix.c
> @@ -31,7 +31,6 @@
>  #include "block/thread-pool.h"
>  #include "qemu/iov.h"
>  #include "block/raw-aio.h"
> -#include "qapi/util.h"
>  #include "qapi/qmp/qstring.h"
>  
>  #if defined(__APPLE__) && (__MACH__)
> diff --git a/block/file-win32.c b/block/file-win32.c
> index 978d805..192ea81 100644
> --- a/block/file-win32.c
> +++ b/block/file-win32.c
> @@ -31,7 +31,6 @@
>  #include "block/thread-pool.h"
>  #include "qemu/iov.h"
>  #include "qapi/qmp/qstring.h"
> -#include "qapi/util.h"
>  #include <windows.h>
>  #include <winioctl.h>
>  
> diff --git a/block/gluster.c b/block/gluster.c
> index 8367e80..0614e0c 100644
> --- a/block/gluster.c
> +++ b/block/gluster.c
> @@ -12,7 +12,6 @@
>  #include "block/block_int.h"
>  #include "qapi/error.h"
>  #include "qapi/qmp/qerror.h"
> -#include "qapi/util.h"
>  #include "qemu/uri.h"
>  #include "qemu/error-report.h"
>  #include "qemu/cutils.h"
> diff --git a/block/parallels.c b/block/parallels.c
> index eb92366..d812210 100644
> --- a/block/parallels.c
> +++ b/block/parallels.c
> @@ -35,7 +35,6 @@
>  #include "qemu/module.h"
>  #include "qemu/bswap.h"
>  #include "qemu/bitmap.h"
> -#include "qapi/util.h"
>  
>  /**************************************************************/
>  
> diff --git a/block/qcow2.c b/block/qcow2.c
> index 7aaf248..41e067e 100644
> --- a/block/qcow2.c
> +++ b/block/qcow2.c
> @@ -30,7 +30,6 @@
>  #include "qemu/error-report.h"
>  #include "qapi/qmp/qerror.h"
>  #include "qapi/qmp/qbool.h"
> -#include "qapi/util.h"
>  #include "qapi/qmp/types.h"
>  #include "qapi-event.h"
>  #include "trace.h"
> diff --git a/block/quorum.c b/block/quorum.c
> index cb66177..8d1c9f6 100644
> --- a/block/quorum.c
> +++ b/block/quorum.c
> @@ -22,7 +22,6 @@
>  #include "qapi/qmp/qjson.h"
>  #include "qapi/qmp/qlist.h"
>  #include "qapi/qmp/qstring.h"
> -#include "qapi/util.h"
>  #include "qapi-event.h"
>  #include "crypto/hash.h"
>  
> diff --git a/blockdev.c b/blockdev.c
> index 722a61e..f90bc93 100644
> --- a/blockdev.c
> +++ b/blockdev.c
> @@ -44,7 +44,6 @@
>  #include "qapi-visit.h"
>  #include "qapi/qmp/qerror.h"
>  #include "qapi/qobject-output-visitor.h"
> -#include "qapi/util.h"
>  #include "sysemu/sysemu.h"
>  #include "block/block_int.h"
>  #include "qmp-commands.h"
> diff --git a/crypto/block-luks.c b/crypto/block-luks.c
> index c3cacdb..84d189a 100644
> --- a/crypto/block-luks.c
> +++ b/crypto/block-luks.c
> @@ -20,7 +20,6 @@
>  
>  #include "qemu/osdep.h"
>  #include "qapi/error.h"
> -#include "qapi/util.h"
>  #include "qemu/bswap.h"
>  
>  #include "crypto/block-luks.h"
> diff --git a/docs/devel/qapi-code-gen.txt b/docs/devel/qapi-code-gen.txt
> index ae05327..f04c63f 100644
> --- a/docs/devel/qapi-code-gen.txt
> +++ b/docs/devel/qapi-code-gen.txt
> @@ -1275,6 +1275,9 @@ Example:
>          EXAMPLE_QAPI_EVENT__MAX = 1,
>      } example_QAPIEvent;
>  
> +    #define example_QAPIEvent_str(val) \
> +        qapi_enum_lookup(example_QAPIEvent_lookup, (val))
> +
>      extern const char *const example_QAPIEvent_lookup[];
>  
>      #endif
> diff --git a/hmp.c b/hmp.c
> index 2b6e919..5d980ac 100644
> --- a/hmp.c
> +++ b/hmp.c
> @@ -31,7 +31,6 @@
>  #include "qapi/qmp/qerror.h"
>  #include "qapi/string-input-visitor.h"
>  #include "qapi/string-output-visitor.h"
> -#include "qapi/util.h"
>  #include "qapi-visit.h"
>  #include "qom/object_interfaces.h"
>  #include "ui/console.h"
> diff --git a/include/qapi/util.h b/include/qapi/util.h
> index 4eb8a3f..5e50d0c 100644
> --- a/include/qapi/util.h
> +++ b/include/qapi/util.h
> @@ -11,6 +11,7 @@
>  #ifndef QAPI_UTIL_H
>  #define QAPI_UTIL_H
>  
> +const char *qapi_enum_lookup(const char *const lookup[], int val);
>  int qapi_enum_parse(const char * const lookup[], const char *buf,
>                      int def, Error **errp);
>  
> diff --git a/migration/global_state.c b/migration/global_state.c
> index 88c55f8..76cd3a1 100644
> --- a/migration/global_state.c
> +++ b/migration/global_state.c
> @@ -14,7 +14,6 @@
>  #include "qemu/cutils.h"
>  #include "qemu/error-report.h"
>  #include "qapi/error.h"
> -#include "qapi/util.h"
>  #include "migration.h"
>  #include "migration/global_state.h"
>  #include "migration/vmstate.h"
> diff --git a/migration/migration.c b/migration/migration.c
> index c3fe0ed..1a2b3eb 100644
> --- a/migration/migration.c
> +++ b/migration/migration.c
> @@ -31,7 +31,6 @@
>  #include "migration/vmstate.h"
>  #include "block/block.h"
>  #include "qapi/qmp/qerror.h"
> -#include "qapi/util.h"
>  #include "qemu/rcu.h"
>  #include "block.h"
>  #include "postcopy-ram.h"
> diff --git a/qapi/qapi-util.c b/qapi/qapi-util.c
> index ee7594f..7af2f04 100644
> --- a/qapi/qapi-util.c
> +++ b/qapi/qapi-util.c
> @@ -13,7 +13,13 @@
>  #include "qemu/osdep.h"
>  #include "qapi/error.h"
>  #include "qemu-common.h"
> -#include "qapi/util.h"
> +
> +const char *qapi_enum_lookup(const char *const lookup[], int val)
> +{
> +    assert(val >= 0);
> +
> +    return lookup[val];
> +}
>  
>  int qapi_enum_parse(const char * const lookup[], const char *buf,
>                      int def, Error **errp)
> diff --git a/qapi/qapi-visit-core.c b/qapi/qapi-visit-core.c
> index ec83ff6..f285879 100644
> --- a/qapi/qapi-visit-core.c
> +++ b/qapi/qapi-visit-core.c
> @@ -14,7 +14,6 @@
>  
>  #include "qemu/osdep.h"
>  #include "qapi/error.h"
> -#include "qapi/util.h"
>  #include "qemu-common.h"
>  #include "qapi/qmp/qobject.h"
>  #include "qapi/qmp/qerror.h"
> diff --git a/qemu-img.c b/qemu-img.c
> index 611ab7d..a72a2e3 100644
> --- a/qemu-img.c
> +++ b/qemu-img.c
> @@ -26,7 +26,6 @@
>  
>  #include "qemu-version.h"
>  #include "qapi/error.h"
> -#include "qapi/util.h"
>  #include "qapi-visit.h"
>  #include "qapi/qobject-output-visitor.h"
>  #include "qapi/qmp/qerror.h"
> diff --git a/qemu-nbd.c b/qemu-nbd.c
> index 96e10d6..a97f3f4 100644
> --- a/qemu-nbd.c
> +++ b/qemu-nbd.c
> @@ -34,7 +34,6 @@
>  #include "qemu/log.h"
>  #include "qemu/systemd.h"
>  #include "block/snapshot.h"
> -#include "qapi/util.h"
>  #include "qapi/qmp/qstring.h"
>  #include "qom/object_interfaces.h"
>  #include "io/channel-socket.h"
> diff --git a/scripts/qapi-event.py b/scripts/qapi-event.py
> index bcbef10..07b4b70 100644
> --- a/scripts/qapi-event.py
> +++ b/scripts/qapi-event.py
> @@ -217,6 +217,7 @@ fdef.write(mcgen('''
>  
>  fdecl.write(mcgen('''
>  #include "qapi/error.h"
> +#include "qapi/util.h"
>  #include "qapi/qmp/qdict.h"
>  #include "%(prefix)sqapi-types.h"
>  
> diff --git a/scripts/qapi-types.py b/scripts/qapi-types.py
> index b45e7b5..7e3051d 100644
> --- a/scripts/qapi-types.py
> +++ b/scripts/qapi-types.py
> @@ -292,6 +292,10 @@ fdef.write(mcgen('''
>  ''',
>                   prefix=prefix))
>  
> +fdecl.write(mcgen('''
> +#include "qapi/util.h"
> +'''))
> +
>  schema = QAPISchema(input_file)
>  gen = QAPISchemaGenTypeVisitor()
>  schema.visit(gen)
> diff --git a/scripts/qapi.py b/scripts/qapi.py
> index 8aa2775..1cd713d 100644
> --- a/scripts/qapi.py
> +++ b/scripts/qapi.py
> @@ -1894,6 +1894,9 @@ typedef enum %(c_name)s {
>  
>      ret += mcgen('''
>  
> +#define %(c_name)s_str(val) \\
> +    qapi_enum_lookup(%(c_name)s_lookup, (val))
> +
>  extern const char *const %(c_name)s_lookup[];
>  ''',
>                   c_name=c_name(name))
> diff --git a/tests/test-qapi-util.c b/tests/test-qapi-util.c
> index d72ee8c..7e1be1d 100644
> --- a/tests/test-qapi-util.c
> +++ b/tests/test-qapi-util.c
> @@ -12,7 +12,6 @@
>  
>  #include "qemu/osdep.h"
>  #include "qapi/error.h"
> -#include "qapi/util.h"
>  #include "test-qapi-types.h"
>  
>  static void test_qapi_enum_parse(void)
> diff --git a/tpm.c b/tpm.c
> index 7635fc7..38f3eb8 100644
> --- a/tpm.c
> +++ b/tpm.c
> @@ -14,7 +14,6 @@
>  #include "qemu/osdep.h"
>  
>  #include "qapi/qmp/qerror.h"
> -#include "qapi/util.h"
>  #include "sysemu/tpm_backend.h"
>  #include "sysemu/tpm.h"
>  #include "qemu/config-file.h"
> diff --git a/util/keyval.c b/util/keyval.c
> index 7dbda62..7dfc75c 100644
> --- a/util/keyval.c
> +++ b/util/keyval.c
> @@ -82,7 +82,6 @@
>  #include "qemu/osdep.h"
>  #include "qapi/error.h"
>  #include "qapi/qmp/qstring.h"
> -#include "qapi/util.h"
>  #include "qemu/cutils.h"
>  #include "qemu/option.h"
>  
> --
> 2.7.5
> 
>