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-rw-r--r--scripts/block-coroutine-wrapper.py20
1 files changed, 15 insertions, 5 deletions
diff --git a/scripts/block-coroutine-wrapper.py b/scripts/block-coroutine-wrapper.py
index dff3af49f5..e82b648127 100644
--- a/scripts/block-coroutine-wrapper.py
+++ b/scripts/block-coroutine-wrapper.py
@@ -86,6 +86,16 @@ class FuncDecl:
ctx = 'qemu_get_aio_context()'
self.ctx = ctx
+ self.get_result = 's->ret = '
+ self.ret = 'return s.ret;'
+ self.co_ret = 'return '
+ self.return_field = self.return_type + " ret;"
+ if self.return_type == 'void':
+ self.get_result = ''
+ self.ret = ''
+ self.co_ret = ''
+ self.return_field = ''
+
def gen_list(self, format: str) -> str:
return ', '.join(format.format_map(arg.__dict__) for arg in self.args)
@@ -132,7 +142,7 @@ def create_mixed_wrapper(func: FuncDecl) -> str:
{{
if (qemu_in_coroutine()) {{
{graph_assume_lock}
- return {name}({ func.gen_list('{name}') });
+ {func.co_ret}{name}({ func.gen_list('{name}') });
}} else {{
{struct_name} s = {{
.poll_state.ctx = {func.ctx},
@@ -144,7 +154,7 @@ def create_mixed_wrapper(func: FuncDecl) -> str:
s.poll_state.co = qemu_coroutine_create({name}_entry, &s);
bdrv_poll_co(&s.poll_state);
- return s.ret;
+ {func.ret}
}}
}}"""
@@ -169,7 +179,7 @@ def create_co_wrapper(func: FuncDecl) -> str:
s.poll_state.co = qemu_coroutine_create({name}_entry, &s);
bdrv_poll_co(&s.poll_state);
- return s.ret;
+ {func.ret}
}}"""
@@ -196,7 +206,7 @@ def gen_wrapper(func: FuncDecl) -> str:
typedef struct {struct_name} {{
BdrvPollCo poll_state;
- {func.return_type} ret;
+ {func.return_field}
{ func.gen_block(' {decl};') }
}} {struct_name};
@@ -205,7 +215,7 @@ static void coroutine_fn {name}_entry(void *opaque)
{struct_name} *s = opaque;
{graph_lock}
- s->ret = {name}({ func.gen_list('s->{name}') });
+ {func.get_result}{name}({ func.gen_list('s->{name}') });
{graph_unlock}
s->poll_state.in_progress = false;