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authorEric Blake <eblake@redhat.com>2015-11-18 01:52:57 -0700
committerMarkus Armbruster <armbru@redhat.com>2015-12-17 08:21:28 +0100
commit7fb1cf1606c78c9d5b538f29176fd5a101726a9d (patch)
tree69733bce4ee4a3c1ecd04f5b9a5f65ef1c50e106 /block
parent59a92feedc6927e0e1ff87fdaccfb4dd42ad4c84 (diff)
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qapi: Don't let implicit enum MAX member collide
Now that we guarantee the user doesn't have any enum values beginning with a single underscore, we can use that for our own purposes. Renaming ENUM_MAX to ENUM__MAX makes it obvious that the sentinel is generated. This patch was mostly generated by applying a temporary patch: |diff --git a/scripts/qapi.py b/scripts/qapi.py |index e6d014b..b862ec9 100644 |--- a/scripts/qapi.py |+++ b/scripts/qapi.py |@@ -1570,6 +1570,7 @@ const char *const %(c_name)s_lookup[] = { | max_index = c_enum_const(name, 'MAX', prefix) | ret += mcgen(''' | [%(max_index)s] = NULL, |+// %(max_index)s | }; | ''', | max_index=max_index) then running: $ cat qapi-{types,event}.c tests/test-qapi-types.c | sed -n 's,^// \(.*\)MAX,s|\1MAX|\1_MAX|g,p' > list $ git grep -l _MAX | xargs sed -i -f list The only things not generated are the changes in scripts/qapi.py. Rejecting enum members named 'MAX' is now useless, and will be dropped in the next patch. Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <1447836791-369-23-git-send-email-eblake@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> [Rebased to current master, commit message tweaked] Signed-off-by: Markus Armbruster <armbru@redhat.com>
Diffstat (limited to 'block')
-rw-r--r--block/blkdebug.c10
-rw-r--r--block/parallels.c4
-rw-r--r--block/qcow2.c2
-rw-r--r--block/quorum.c2
-rw-r--r--block/raw-posix.c2
5 files changed, 10 insertions, 10 deletions
diff --git a/block/blkdebug.c b/block/blkdebug.c
index 6bcb7fa..59c61eb 100644
--- a/block/blkdebug.c
+++ b/block/blkdebug.c
@@ -36,7 +36,7 @@ typedef struct BDRVBlkdebugState {
int state;
int new_state;
- QLIST_HEAD(, BlkdebugRule) rules[BLKDBG_MAX];
+ QLIST_HEAD(, BlkdebugRule) rules[BLKDBG__MAX];
QSIMPLEQ_HEAD(, BlkdebugRule) active_rules;
QLIST_HEAD(, BlkdebugSuspendedReq) suspended_reqs;
} BDRVBlkdebugState;
@@ -147,7 +147,7 @@ static int get_event_by_name(const char *name, BlkdebugEvent *event)
{
int i;
- for (i = 0; i < BLKDBG_MAX; i++) {
+ for (i = 0; i < BLKDBG__MAX; i++) {
if (!strcmp(BlkdebugEvent_lookup[i], name)) {
*event = i;
return 0;
@@ -507,7 +507,7 @@ static void blkdebug_close(BlockDriverState *bs)
BlkdebugRule *rule, *next;
int i;
- for (i = 0; i < BLKDBG_MAX; i++) {
+ for (i = 0; i < BLKDBG__MAX; i++) {
QLIST_FOREACH_SAFE(rule, &s->rules[i], next, next) {
remove_rule(rule);
}
@@ -576,7 +576,7 @@ static void blkdebug_debug_event(BlockDriverState *bs, BlkdebugEvent event)
struct BlkdebugRule *rule, *next;
bool injected;
- assert((int)event >= 0 && event < BLKDBG_MAX);
+ assert((int)event >= 0 && event < BLKDBG__MAX);
injected = false;
s->new_state = s->state;
@@ -633,7 +633,7 @@ static int blkdebug_debug_remove_breakpoint(BlockDriverState *bs,
BlkdebugRule *rule, *next;
int i, ret = -ENOENT;
- for (i = 0; i < BLKDBG_MAX; i++) {
+ for (i = 0; i < BLKDBG__MAX; i++) {
QLIST_FOREACH_SAFE(rule, &s->rules[i], next, next) {
if (rule->action == ACTION_SUSPEND &&
!strcmp(rule->options.suspend.tag, tag)) {
diff --git a/block/parallels.c b/block/parallels.c
index f689fde..e4a56a5 100644
--- a/block/parallels.c
+++ b/block/parallels.c
@@ -61,7 +61,7 @@ typedef struct ParallelsHeader {
typedef enum ParallelsPreallocMode {
PRL_PREALLOC_MODE_FALLOCATE = 0,
PRL_PREALLOC_MODE_TRUNCATE = 1,
- PRL_PREALLOC_MODE_MAX = 2,
+ PRL_PREALLOC_MODE__MAX = 2,
} ParallelsPreallocMode;
static const char *prealloc_mode_lookup[] = {
@@ -660,7 +660,7 @@ static int parallels_open(BlockDriverState *bs, QDict *options, int flags,
s->prealloc_size = MAX(s->tracks, s->prealloc_size >> BDRV_SECTOR_BITS);
buf = qemu_opt_get_del(opts, PARALLELS_OPT_PREALLOC_MODE);
s->prealloc_mode = qapi_enum_parse(prealloc_mode_lookup, buf,
- PRL_PREALLOC_MODE_MAX, PRL_PREALLOC_MODE_FALLOCATE, &local_err);
+ PRL_PREALLOC_MODE__MAX, PRL_PREALLOC_MODE_FALLOCATE, &local_err);
g_free(buf);
if (local_err != NULL) {
goto fail_options;
diff --git a/block/qcow2.c b/block/qcow2.c
index 88f56c8..5b59fa3 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -2269,7 +2269,7 @@ static int qcow2_create(const char *filename, QemuOpts *opts, Error **errp)
DEFAULT_CLUSTER_SIZE);
buf = qemu_opt_get_del(opts, BLOCK_OPT_PREALLOC);
prealloc = qapi_enum_parse(PreallocMode_lookup, buf,
- PREALLOC_MODE_MAX, PREALLOC_MODE_OFF,
+ PREALLOC_MODE__MAX, PREALLOC_MODE_OFF,
&local_err);
if (local_err) {
error_propagate(errp, local_err);
diff --git a/block/quorum.c b/block/quorum.c
index b9ba028..d162459 100644
--- a/block/quorum.c
+++ b/block/quorum.c
@@ -847,7 +847,7 @@ static int parse_read_pattern(const char *opt)
return QUORUM_READ_PATTERN_QUORUM;
}
- for (i = 0; i < QUORUM_READ_PATTERN_MAX; i++) {
+ for (i = 0; i < QUORUM_READ_PATTERN__MAX; i++) {
if (!strcmp(opt, QuorumReadPattern_lookup[i])) {
return i;
}
diff --git a/block/raw-posix.c b/block/raw-posix.c
index d9162fd..ffeebe1 100644
--- a/block/raw-posix.c
+++ b/block/raw-posix.c
@@ -1636,7 +1636,7 @@ static int raw_create(const char *filename, QemuOpts *opts, Error **errp)
nocow = qemu_opt_get_bool(opts, BLOCK_OPT_NOCOW, false);
buf = qemu_opt_get_del(opts, BLOCK_OPT_PREALLOC);
prealloc = qapi_enum_parse(PreallocMode_lookup, buf,
- PREALLOC_MODE_MAX, PREALLOC_MODE_OFF,
+ PREALLOC_MODE__MAX, PREALLOC_MODE_OFF,
&local_err);
g_free(buf);
if (local_err) {