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//===-- Generic RPC server interface --------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIBC_UTILS_GPU_LOADER_RPC_H
#define LLVM_LIBC_UTILS_GPU_LOADER_RPC_H
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <stddef.h>
#include "src/__support/RPC/rpc.h"
static __llvm_libc::rpc::Server server;
static __llvm_libc::cpp::Atomic<uint32_t>
lock[__llvm_libc::rpc::default_port_count] = {0};
/// Queries the RPC client at least once and performs server-side work if there
/// are any active requests.
void handle_server() {
// Continue servicing the client until there is no work left and we return.
for (;;) {
auto port = server.try_open();
if (!port)
return;
switch (port->get_opcode()) {
case __llvm_libc::rpc::Opcode::PRINT_TO_STDERR: {
uint64_t str_size[__llvm_libc::rpc::MAX_LANE_SIZE] = {0};
char *strs[__llvm_libc::rpc::MAX_LANE_SIZE] = {nullptr};
port->recv_n([&](uint64_t size, uint32_t id) {
str_size[id] = size;
strs[id] = new char[size];
return strs[id];
});
for (uint64_t i = 0; i < __llvm_libc::rpc::MAX_LANE_SIZE; ++i) {
if (strs[i]) {
fwrite(strs[i], str_size[i], 1, stderr);
delete[] strs[i];
}
}
break;
}
case __llvm_libc::rpc::Opcode::EXIT: {
port->recv([](__llvm_libc::rpc::Buffer *buffer) {
exit(reinterpret_cast<uint32_t *>(buffer->data)[0]);
});
break;
}
case __llvm_libc::rpc::Opcode::TEST_INCREMENT: {
port->recv_and_send([](__llvm_libc::rpc::Buffer *buffer) {
reinterpret_cast<uint64_t *>(buffer->data)[0] += 1;
});
break;
}
default:
port->recv([](__llvm_libc::rpc::Buffer *buffer) {});
}
port->close();
}
}
#endif
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