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authorLectem <lectem@gmail.com>2016-12-26 14:42:06 +0100
committerLectem <lectem@gmail.com>2016-12-26 14:42:06 +0100
commitf91c51467a58b66a2ca2ae78a67f9ca076299c2e (patch)
treed1310af34e3fb72a0e4f6ce3575c3c2f2d7c9175
parentIPC helpers example (diff)
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-rw-r--r--src/core/hle/ipc_helpers.h160
1 files changed, 88 insertions, 72 deletions
diff --git a/src/core/hle/ipc_helpers.h b/src/core/hle/ipc_helpers.h
index 6089c39c7..68508caba 100644
--- a/src/core/hle/ipc_helpers.h
+++ b/src/core/hle/ipc_helpers.h
@@ -50,9 +50,9 @@ public:
template <typename T>
void Push(T value);
- template <>
- void Push(u32);
-
+ void Push(u32 value) {
+ cmdbuf[index++] = value;
+ }
template <typename First, class... Other>
void Push(First first_value, const Other&... other_values) {
Push(first_value);
@@ -86,7 +86,7 @@ public:
void PushCurrentPIDHandle() {
Push(CallingPidDesc());
- Push<u32>(0);
+ Push(u32(0));
}
void PushStaticBuffer(VAddr buffer_vaddr, u32 size, u8 buffer_id) {
@@ -100,6 +100,24 @@ public:
}
};
+/// Push ///
+
+template <>
+inline void RequestBuilder::Push<u32>(u32 value) {
+ Push(value);
+}
+
+template <>
+inline void RequestBuilder::Push<u64>(u64 value) {
+ Push(static_cast<u32>(value));
+ Push(static_cast<u32>(value >> 32));
+}
+
+template <>
+inline void RequestBuilder::Push<ResultCode>(ResultCode value) {
+ Push(value.raw);
+}
+
class RequestParser : public RequestHelperBase {
public:
RequestParser(u32* command_buffer, Header command_header)
@@ -123,39 +141,16 @@ public:
template <typename T>
T Pop();
- template <>
- u32 Pop<u32>();
-
template <typename T>
- void Pop(T& value) {
- value = Pop<T>();
- }
+ void Pop(T& value);
template <typename First, class... Other>
- void Pop(First& first_value, Other&... other_values) {
- first_value = Pop<First>();
- Pop(other_values...);
- }
+ void Pop(First& first_value, Other&... other_values);
- Kernel::Handle PopHandle() {
- const u32 handle_descriptor = Pop<u32>();
- DEBUG_ASSERT_MSG(IsHandleDescriptor(handle_descriptor),
- "Tried to pop handle(s) but the descriptor is not a handle descriptor");
- DEBUG_ASSERT_MSG(HandleNumberFromDesc(handle_descriptor) == 1,
- "Descriptor indicates that there isn't exactly one handle");
- return Pop<Kernel::Handle>();
- }
+ Kernel::Handle PopHandle();
template <typename... H>
- void PopHandles(H&... handles) {
- const u32 handle_descriptor = Pop<u32>();
- const int handles_number = sizeof...(H);
- DEBUG_ASSERT_MSG(IsHandleDescriptor(handle_descriptor),
- "Tried to pop handle(s) but the descriptor is not a handle descriptor");
- DEBUG_ASSERT_MSG(handles_number == HandleNumberFromDesc(handle_descriptor),
- "Number of handles doesn't match the descriptor");
- Pop(static_cast<Kernel::Handle&>(handles)...);
- }
+ void PopHandles(H&... handles);
/**
* @brief Pops the static buffer vaddr
@@ -171,22 +166,7 @@ public:
* buffer information
* Please note that the setup uses virtual addresses.
*/
- VAddr PopStaticBuffer(size_t* data_size = nullptr, bool useStaticBuffersToGetVaddr = false) {
- const u32 sbuffer_descriptor = Pop<u32>();
- StaticBufferDescInfo bufferInfo{sbuffer_descriptor};
- if (data_size != nullptr)
- *data_size = bufferInfo.size;
- if (!useStaticBuffersToGetVaddr)
- return Pop<VAddr>();
- else {
- ASSERT_MSG(0, "remove the assert if multiprocess/IPC translation are implemented.");
- // The buffer has already been copied to the static buffer by the kernel during
- // translation
- Pop<VAddr>(); // Pop the calling process buffer address
- // and get the vaddr from the static buffers
- return cmdbuf[(0x100 >> 2) + bufferInfo.buffer_id * 2 + 1];
- }
- }
+ VAddr PopStaticBuffer(size_t* data_size = nullptr, bool useStaticBuffersToGetVaddr = false);
/**
* @brief Pops the mapped buffer vaddr
@@ -197,26 +177,14 @@ public:
* buffer
*/
VAddr PopMappedBuffer(size_t* data_size = nullptr,
- MappedBufferPermissions* buffer_perms = nullptr) {
- const u32 sbuffer_descriptor = Pop<u32>();
- MappedBufferDescInfo bufferInfo{sbuffer_descriptor};
- if (data_size != nullptr)
- *data_size = bufferInfo.size;
- if (buffer_perms != nullptr)
- *buffer_perms = bufferInfo.perms;
- return Pop<VAddr>();
- }
+ MappedBufferPermissions* buffer_perms = nullptr);
/**
* @brief Reads the next normal parameters as a struct, by copying it
* @note: The output class must be correctly packed/padded to fit hardware layout.
*/
template <typename T>
- void PopRaw(T& value) {
- static_assert(std::is_trivially_copyable<T>(), "Raw types should be trivially copyable");
- std::memcpy(&value, cmdbuf + index, sizeof(T));
- index += (sizeof(T) + 3) / 4; // round up to word length
- }
+ void PopRaw(T& value);
};
/// Pop ///
@@ -238,22 +206,70 @@ inline ResultCode RequestParser::Pop<ResultCode>() {
return ResultCode{Pop<u32>()};
}
-/// Push ///
+template <typename T>
+void RequestParser::Pop(T& value) {
+ value = Pop<T>();
+}
-template <>
-inline void RequestBuilder::Push<u32>(u32 value) {
- cmdbuf[index++] = value;
+template <typename First, class... Other>
+void RequestParser::Pop(First& first_value, Other&... other_values) {
+ first_value = Pop<First>();
+ Pop(other_values...);
}
-template <>
-inline void RequestBuilder::Push<u64>(u64 value) {
- Push(static_cast<u32>(value));
- Push(static_cast<u32>(value >> 32));
+inline Kernel::Handle RequestParser::PopHandle() {
+ const u32 handle_descriptor = Pop<u32>();
+ DEBUG_ASSERT_MSG(IsHandleDescriptor(handle_descriptor),
+ "Tried to pop handle(s) but the descriptor is not a handle descriptor");
+ DEBUG_ASSERT_MSG(HandleNumberFromDesc(handle_descriptor) == 1,
+ "Descriptor indicates that there isn't exactly one handle");
+ return Pop<Kernel::Handle>();
}
-template <>
-inline void RequestBuilder::Push<ResultCode>(ResultCode value) {
- Push(value.raw);
+template <typename... H>
+void RequestParser::PopHandles(H&... handles) {
+ const u32 handle_descriptor = Pop<u32>();
+ const int handles_number = sizeof...(H);
+ DEBUG_ASSERT_MSG(IsHandleDescriptor(handle_descriptor),
+ "Tried to pop handle(s) but the descriptor is not a handle descriptor");
+ DEBUG_ASSERT_MSG(handles_number == HandleNumberFromDesc(handle_descriptor),
+ "Number of handles doesn't match the descriptor");
+ Pop(static_cast<Kernel::Handle&>(handles)...);
+}
+
+inline VAddr RequestParser::PopStaticBuffer(size_t* data_size, bool useStaticBuffersToGetVaddr) {
+ const u32 sbuffer_descriptor = Pop<u32>();
+ StaticBufferDescInfo bufferInfo{sbuffer_descriptor};
+ if (data_size != nullptr)
+ *data_size = bufferInfo.size;
+ if (!useStaticBuffersToGetVaddr)
+ return Pop<VAddr>();
+ else {
+ ASSERT_MSG(0, "remove the assert if multiprocess/IPC translation are implemented.");
+ // The buffer has already been copied to the static buffer by the kernel during
+ // translation
+ Pop<VAddr>(); // Pop the calling process buffer address
+ // and get the vaddr from the static buffers
+ return cmdbuf[(0x100 >> 2) + bufferInfo.buffer_id * 2 + 1];
+ }
+}
+
+inline VAddr RequestParser::PopMappedBuffer(size_t* data_size,
+ MappedBufferPermissions* buffer_perms) {
+ const u32 sbuffer_descriptor = Pop<u32>();
+ MappedBufferDescInfo bufferInfo{sbuffer_descriptor};
+ if (data_size != nullptr)
+ *data_size = bufferInfo.size;
+ if (buffer_perms != nullptr)
+ *buffer_perms = bufferInfo.perms;
+ return Pop<VAddr>();
+}
+
+template <typename T>
+void RequestParser::PopRaw(T& value) {
+ static_assert(std::is_trivially_copyable<T>(), "Raw types should be trivially copyable");
+ std::memcpy(&value, cmdbuf + index, sizeof(T));
+ index += (sizeof(T) + 3) / 4; // round up to word length
}
} // namespace IPC