tqchen commented on a change in pull request #7919:
URL: https://github.com/apache/tvm/pull/7919#discussion_r624265087
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File path: include/tvm/runtime/c_backend_api.h
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@@ -99,6 +100,19 @@ TVM_DLL void* TVMBackendAllocWorkspace(int device_type, int
device_id, uint64_t
*/
TVM_DLL int TVMBackendFreeWorkspace(int device_type, int device_id, void* ptr);
+/*!
+ * \brief Backend function to register execution environment(e.g. python)
+ * specific C APIs.
+ *
+ * \note We only register the C API function when absolutely necessary (e.g.
when signal handler
+ * cannot trap back into python). In most cases we should use the PackedFunc
FFI.
+ *
+ * \param name The name of the symbol
+ * \param ptr The symbol address.
+ * \return 0 when no error is thrown, -1 when failure happens
+ */
+TVM_DLL int TVMBackendRegisterEnvCAPI(const char* name, void* ptr);
Review comment:
Right the main rationale is to make the C API minimal. Note that two
functions are already needed(PyErr_GetSignals and PyErr_Clear)
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