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authorKieran Bingham <kieran.bingham@ideasonboard.com>2021-03-23 13:55:09 +0000
committerKieran Bingham <kieran.bingham@ideasonboard.com>2021-03-29 12:18:02 +0100
commit70238ceca5b2f0be1330ecb9664ae0f59f151152 (patch)
treed4fb849274346c59b92f3faf2caf19be7a1eeac1 /utils/ipc/generators/libcamera_templates/module_ipa_proxy.cpp.tmpl
parente7d367bf65c749ca1cee79db6d12a1fc130ff80e (diff)
utils: ipc: proxy: Track IPA with a state machine
Asynchronous tasks can only be submitted while the IPA is running. Further more, the shutdown sequence can not be tracked with a simple running flag. We can also be in the state 'Stopping' where we have not yet completed all events, but we must not commence anything new. Refactor the running_ boolean into a stateful enum to track this. Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Diffstat (limited to 'utils/ipc/generators/libcamera_templates/module_ipa_proxy.cpp.tmpl')
-rw-r--r--utils/ipc/generators/libcamera_templates/module_ipa_proxy.cpp.tmpl9
1 files changed, 4 insertions, 5 deletions
diff --git a/utils/ipc/generators/libcamera_templates/module_ipa_proxy.cpp.tmpl b/utils/ipc/generators/libcamera_templates/module_ipa_proxy.cpp.tmpl
index e3b541db..dc674815 100644
--- a/utils/ipc/generators/libcamera_templates/module_ipa_proxy.cpp.tmpl
+++ b/utils/ipc/generators/libcamera_templates/module_ipa_proxy.cpp.tmpl
@@ -45,8 +45,7 @@ namespace {{ns}} {
{%- endif %}
{{proxy_name}}::{{proxy_name}}(IPAModule *ipam, bool isolate)
- : IPAProxy(ipam), running_(false),
- isolate_(isolate), seq_(0)
+ : IPAProxy(ipam), isolate_(isolate), seq_(0)
{
LOG(IPAProxy, Debug)
<< "initializing {{module_name}} proxy: loading IPA from "
@@ -155,7 +154,7 @@ void {{proxy_name}}::recvMessage(const IPCMessage &data)
return {{ "_ret" if method|method_return_value != "void" }};
{%- elif method.mojom_name == "start" %}
- running_ = true;
+ state_ = ProxyRunning;
thread_.start();
{{ "return " if method|method_return_value != "void" -}}
@@ -173,7 +172,7 @@ void {{proxy_name}}::recvMessage(const IPCMessage &data)
{%- endfor -%}
);
{% elif method|is_async %}
- ASSERT(running_);
+ ASSERT(state_ == ProxyRunning);
proxy_.invokeMethod(&ThreadProxy::{{method.mojom_name}}, ConnectionTypeQueued,
{%- for param in method|method_param_names -%}
{{param}}{{- ", " if not loop.last}}
@@ -226,7 +225,7 @@ void {{proxy_name}}::recvMessage(const IPCMessage &data)
{% for method in interface_event.methods %}
{{proxy_funcs.func_sig(proxy_name, method, "Thread")}}
{
- ASSERT(running_);
+ ASSERT(state_ != ProxyStopped);
{{method.mojom_name}}.emit({{method.parameters|params_comma_sep}});
}