Core: exit with child

ehmry · Jul 25, 2019 · b15148c · b15148c
1 parent 1955221
commit b15148c
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Showing 4 changed files with 26 additions and 4 deletions.
diff --git a/repos/base-linux/src/core/include/platform.h b/repos/base-linux/src/core/include/platform.h
@@ -130,6 +130,8 @@ namespace Genode {
 			size_t max_caps() const override { return 10000; }
 
 			void wait_for_exit() override;
+
+			void child_exit() override;
 	};
 }
 

diff --git a/repos/base-linux/src/core/platform.cc b/repos/base-linux/src/core/platform.cc
@@ -148,6 +148,8 @@ void Platform::wait_for_exit()
 	lx_exit_group(0);
 }
 
+void Platform::child_exit() { sigint_handler(0); }
+
 
 /*****************************
  ** Support for IPC library **

diff --git a/repos/base/src/core/include/platform_generic.h b/repos/base/src/core/include/platform_generic.h
@@ -79,6 +79,11 @@ namespace Genode {
 			 */
 			virtual void wait_for_exit() = 0;
 
+			/**
+			 * Handle exit of child
+			 */
+			virtual void child_exit() { };
+
 			/**
 			 * Return true if platform supports direct unmap (no mapping db)
 			 */

diff --git a/repos/base/src/core/main.cc b/repos/base/src/core/main.cc
@@ -119,6 +119,8 @@ class Core_child : public Child_policy
 
 		Child _child;
 
+		int &_exit_value;
+
 	public:
 
 		/**
@@ -128,14 +130,16 @@ class Core_child : public Child_policy
 		           Pd_session  &core_pd,  Capability<Pd_session>  core_pd_cap,
 		           Cpu_session &core_cpu, Capability<Cpu_session> core_cpu_cap,
 		           Cap_quota cap_quota, Ram_quota ram_quota,
-		           Rpc_entrypoint &ep)
+		           Rpc_entrypoint &ep,
+		           int &exit_value)
 		:
 			_services(services),
 			_core_pd_cap (core_pd_cap),  _core_pd (core_pd),
 			_core_cpu_cap(core_cpu_cap), _core_cpu(core_cpu),
 			_cap_quota(Child::effective_quota(cap_quota)),
 			_ram_quota(Child::effective_quota(ram_quota)),
-			_child(local_rm, ep, *this)
+			_child(local_rm, ep, *this),
+			_exit_value(exit_value)
 		{ }
 
 
@@ -174,6 +178,13 @@ class Core_child : public Child_policy
 			_core_cpu.transfer_quota(cap, Cpu_session::quota_lim_upscale(100, 100));
 		}
 
+		void exit(int exit_value) override
+		{
+			_exit_value = exit_value;
+			Child_policy::exit(exit_value);
+			platform().child_exit();
+		}
+
 		Pd_session           &ref_pd()           override { return _core_pd; }
 		Pd_session_capability ref_pd_cap() const override { return _core_pd_cap; }
 
@@ -221,6 +232,8 @@ namespace Genode {
 
 int main()
 {
+	int exit_value = 0;
+
 	/**
 	 * Disable tracing within core because it is currently not fully implemented.
 	 */
@@ -309,10 +322,10 @@ int main()
 
 	static Reconstructible<Core_child>
 		init(services, local_rm, core_pd, core_pd_cap, core_cpu, core_cpu_cap,
-		     init_cap_quota, init_ram_quota, ep);
+		     init_cap_quota, init_ram_quota, ep, exit_value);
 
 	platform().wait_for_exit();
 
 	init.destruct();
-	return 0;
+	return exit_value;
 }