Core/ResourceLimits: Implemented the basic structure of ResourceLimits.

Implemented svcs GetResourceLimit, GetResourceLimitCurrentValues and GetResourceLimitLimitValues.

Note that the resource limits do not currently keep track of used objects, since we have no way to distinguish between an object created by the application, and an object created by some HLE module once we're inside Kernel::T::Create.

1 files changed, 157 insertions, 0 deletions

diff --git a/src/core/hle/kernel/resource_limit.cpp b/src/core/hle/kernel/resource_limit.cpp
new file mode 100644
index 00000000..94b3e329
--- /dev/null
+++ b/src/core/hle/kernel/resource_limit.cpp
@@ -0,0 +1,157 @@
+// Copyright 2015 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <cstring>
+
+#include "common/logging/log.h"
+
+#include "core/mem_map.h"
+#include "core/hle/kernel/resource_limit.h"
+
+namespace Kernel {
+
+static SharedPtr<ResourceLimit> resource_limits[4];
+
+ResourceLimit::ResourceLimit() {}
+ResourceLimit::~ResourceLimit() {}
+
+SharedPtr<ResourceLimit> ResourceLimit::Create(std::string name) {
+    SharedPtr<ResourceLimit> resource_limit(new ResourceLimit);
+
+    resource_limit->name = std::move(name);
+    return resource_limit;
+}
+
+SharedPtr<ResourceLimit> ResourceLimit::GetForCategory(ResourceLimitCategory category) {
+    switch (category)
+    {
+        case ResourceLimitCategory::APPLICATION:
+        case ResourceLimitCategory::SYS_APPLET:
+        case ResourceLimitCategory::LIB_APPLET:
+        case ResourceLimitCategory::OTHER:
+            return resource_limits[static_cast<u8>(category)];
+        default:
+            LOG_CRITICAL(Kernel, "Unknown resource limit category");
+            UNREACHABLE();
+    }
+}
+
+s32 ResourceLimit::GetCurrentResourceValue(u32 resource) const {
+    switch (resource) {
+        case COMMIT:
+            return current_commit;
+        case THREAD:
+            return current_threads;
+        case EVENT:
+            return current_events;
+        case MUTEX:
+            return current_mutexes;
+        case SEMAPHORE:
+            return current_semaphores;
+        case TIMER:
+            return current_timers;
+        case SHARED_MEMORY:
+            return current_shared_mems;
+        case ADDRESS_ARBITER:
+            return current_address_arbiters;
+        case CPU_TIME:
+            return current_cpu_time;
+        default:
+            LOG_ERROR(Kernel, "Unknown resource type=%08X", resource);
+            UNIMPLEMENTED();
+            return 0;
+    }
+}
+
+s32 ResourceLimit::GetMaxResourceValue(u32 resource) const {
+    switch (resource) {
+        case COMMIT:
+            return max_commit;
+        case THREAD:
+            return max_threads;
+        case EVENT:
+            return max_events;
+        case MUTEX:
+            return max_mutexes;
+        case SEMAPHORE:
+            return max_semaphores;
+        case TIMER:
+            return max_timers;
+        case SHARED_MEMORY:
+            return max_shared_mems;
+        case ADDRESS_ARBITER:
+            return max_address_arbiters;
+        case CPU_TIME:
+            return max_cpu_time;
+        default:
+            LOG_ERROR(Kernel, "Unknown resource type=%08X", resource);
+            UNIMPLEMENTED();
+            return 0;
+    }
+}
+
+void ResourceLimitsInit() {
+    // Create the four resource limits that the system uses
+    // Create the APPLICATION resource limit
+    SharedPtr<ResourceLimit> resource_limit = ResourceLimit::Create("Applications");
+    resource_limit->max_priority = 0x18;
+    resource_limit->max_commit = 0x4000000;
+    resource_limit->max_threads = 0x20;
+    resource_limit->max_events = 0x20;
+    resource_limit->max_mutexes = 0x20;
+    resource_limit->max_semaphores = 0x8;
+    resource_limit->max_timers = 0x8;
+    resource_limit->max_shared_mems = 0x10;
+    resource_limit->max_address_arbiters = 0x2;
+    resource_limit->max_cpu_time = 0x1E;
+    resource_limits[static_cast<u8>(ResourceLimitCategory::APPLICATION)] = resource_limit;
+
+    // Create the SYS_APPLET resource limit
+    resource_limit = ResourceLimit::Create("System Applets");
+    resource_limit->max_priority = 0x4;
+    resource_limit->max_commit = 0x5E00000;
+    resource_limit->max_threads = 0x1D;
+    resource_limit->max_events = 0xB;
+    resource_limit->max_mutexes = 0x8;
+    resource_limit->max_semaphores = 0x4;
+    resource_limit->max_timers = 0x4;
+    resource_limit->max_shared_mems = 0x8;
+    resource_limit->max_address_arbiters = 0x3;
+    resource_limit->max_cpu_time = 0x2710;
+    resource_limits[static_cast<u8>(ResourceLimitCategory::SYS_APPLET)] = resource_limit;
+
+    // Create the LIB_APPLET resource limit
+    resource_limit = ResourceLimit::Create("Library Applets");
+    resource_limit->max_priority = 0x4;
+    resource_limit->max_commit = 0x600000;
+    resource_limit->max_threads = 0xE;
+    resource_limit->max_events = 0x8;
+    resource_limit->max_mutexes = 0x8;
+    resource_limit->max_semaphores = 0x4;
+    resource_limit->max_timers = 0x4;
+    resource_limit->max_shared_mems = 0x8;
+    resource_limit->max_address_arbiters = 0x1;
+    resource_limit->max_cpu_time = 0x2710;
+    resource_limits[static_cast<u8>(ResourceLimitCategory::LIB_APPLET)] = resource_limit;
+
+    // Create the OTHER resource limit
+    resource_limit = ResourceLimit::Create("Others");
+    resource_limit->max_priority = 0x4;
+    resource_limit->max_commit = 0x2180000;
+    resource_limit->max_threads = 0xE1;
+    resource_limit->max_events = 0x108;
+    resource_limit->max_mutexes = 0x25;
+    resource_limit->max_semaphores = 0x43;
+    resource_limit->max_timers = 0x2C;
+    resource_limit->max_shared_mems = 0x1F;
+    resource_limit->max_address_arbiters = 0x2D;
+    resource_limit->max_cpu_time = 0x3E8;
+    resource_limits[static_cast<u8>(ResourceLimitCategory::OTHER)] = resource_limit;
+}
+
+void ResourceLimitsShutdown() {
+
+}
+
+} // namespace