1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
#pragma once
#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#endif
//===---- SimpleRemoteEPC.h - Simple remote executor control ----*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// Simple remote executor process control.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_EXECUTIONENGINE_ORC_SIMPLEREMOTEEPC_H
#define LLVM_EXECUTIONENGINE_ORC_SIMPLEREMOTEEPC_H
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/FunctionExtras.h"
#include "llvm/ExecutionEngine/Orc/EPCGenericDylibManager.h"
#include "llvm/ExecutionEngine/Orc/EPCGenericJITLinkMemoryManager.h"
#include "llvm/ExecutionEngine/Orc/EPCGenericMemoryAccess.h"
#include "llvm/ExecutionEngine/Orc/ExecutorProcessControl.h"
#include "llvm/ExecutionEngine/Orc/Shared/SimpleRemoteEPCUtils.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/MSVCErrorWorkarounds.h"
#include <future>
namespace llvm {
namespace orc {
class SimpleRemoteEPC : public ExecutorProcessControl,
public SimpleRemoteEPCTransportClient {
public:
/// A setup object containing callbacks to construct a memory manager and
/// memory access object. Both are optional. If not specified,
/// EPCGenericJITLinkMemoryManager and EPCGenericMemoryAccess will be used.
struct Setup {
using CreateMemoryManagerFn =
Expected<std::unique_ptr<jitlink::JITLinkMemoryManager>>(
SimpleRemoteEPC &);
using CreateMemoryAccessFn =
Expected<std::unique_ptr<MemoryAccess>>(SimpleRemoteEPC &);
unique_function<CreateMemoryManagerFn> CreateMemoryManager;
unique_function<CreateMemoryAccessFn> CreateMemoryAccess;
};
/// Create a SimpleRemoteEPC using the given transport type and args.
template <typename TransportT, typename... TransportTCtorArgTs>
static Expected<std::unique_ptr<SimpleRemoteEPC>>
Create(std::unique_ptr<TaskDispatcher> D, Setup S,
TransportTCtorArgTs &&...TransportTCtorArgs) {
std::unique_ptr<SimpleRemoteEPC> SREPC(
new SimpleRemoteEPC(std::make_shared<SymbolStringPool>(),
std::move(D)));
auto T = TransportT::Create(
*SREPC, std::forward<TransportTCtorArgTs>(TransportTCtorArgs)...);
if (!T)
return T.takeError();
SREPC->T = std::move(*T);
if (auto Err = SREPC->setup(std::move(S)))
return joinErrors(std::move(Err), SREPC->disconnect());
return std::move(SREPC);
}
SimpleRemoteEPC(const SimpleRemoteEPC &) = delete;
SimpleRemoteEPC &operator=(const SimpleRemoteEPC &) = delete;
SimpleRemoteEPC(SimpleRemoteEPC &&) = delete;
SimpleRemoteEPC &operator=(SimpleRemoteEPC &&) = delete;
~SimpleRemoteEPC();
Expected<tpctypes::DylibHandle> loadDylib(const char *DylibPath) override;
Expected<std::vector<tpctypes::LookupResult>>
lookupSymbols(ArrayRef<LookupRequest> Request) override;
Expected<int32_t> runAsMain(ExecutorAddr MainFnAddr,
ArrayRef<std::string> Args) override;
void callWrapperAsync(ExecutorAddr WrapperFnAddr,
IncomingWFRHandler OnComplete,
ArrayRef<char> ArgBuffer) override;
Error disconnect() override;
Expected<HandleMessageAction>
handleMessage(SimpleRemoteEPCOpcode OpC, uint64_t SeqNo, ExecutorAddr TagAddr,
SimpleRemoteEPCArgBytesVector ArgBytes) override;
void handleDisconnect(Error Err) override;
private:
SimpleRemoteEPC(std::shared_ptr<SymbolStringPool> SSP,
std::unique_ptr<TaskDispatcher> D)
: ExecutorProcessControl(std::move(SSP), std::move(D)) {}
static Expected<std::unique_ptr<jitlink::JITLinkMemoryManager>>
createDefaultMemoryManager(SimpleRemoteEPC &SREPC);
static Expected<std::unique_ptr<MemoryAccess>>
createDefaultMemoryAccess(SimpleRemoteEPC &SREPC);
Error sendMessage(SimpleRemoteEPCOpcode OpC, uint64_t SeqNo,
ExecutorAddr TagAddr, ArrayRef<char> ArgBytes);
Error handleSetup(uint64_t SeqNo, ExecutorAddr TagAddr,
SimpleRemoteEPCArgBytesVector ArgBytes);
Error setup(Setup S);
Error handleResult(uint64_t SeqNo, ExecutorAddr TagAddr,
SimpleRemoteEPCArgBytesVector ArgBytes);
void handleCallWrapper(uint64_t RemoteSeqNo, ExecutorAddr TagAddr,
SimpleRemoteEPCArgBytesVector ArgBytes);
Error handleHangup(SimpleRemoteEPCArgBytesVector ArgBytes);
uint64_t getNextSeqNo() { return NextSeqNo++; }
void releaseSeqNo(uint64_t SeqNo) {}
using PendingCallWrapperResultsMap =
DenseMap<uint64_t, IncomingWFRHandler>;
std::mutex SimpleRemoteEPCMutex;
std::condition_variable DisconnectCV;
bool Disconnected = false;
Error DisconnectErr = Error::success();
std::unique_ptr<SimpleRemoteEPCTransport> T;
std::unique_ptr<jitlink::JITLinkMemoryManager> OwnedMemMgr;
std::unique_ptr<MemoryAccess> OwnedMemAccess;
std::unique_ptr<EPCGenericDylibManager> DylibMgr;
ExecutorAddr RunAsMainAddr;
uint64_t NextSeqNo = 0;
PendingCallWrapperResultsMap PendingCallWrapperResults;
};
} // end namespace orc
} // end namespace llvm
#endif // LLVM_EXECUTIONENGINE_ORC_SIMPLEREMOTEEPC_H
#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif
|
