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
|
/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "command.h"
#include <algorithm>
#include <map>
#include <string>
#include <vector>
#include <android-base/logging.h>
#include "utils.h"
bool Command::NextArgumentOrError(const std::vector<std::string>& args, size_t* pi) {
if (*pi + 1 == args.size()) {
LOG(ERROR) << "No argument following " << args[*pi] << " option. Try `simpleperf help " << name_
<< "`";
return false;
}
++*pi;
return true;
}
void Command::ReportUnknownOption(const std::vector<std::string>& args, size_t i) {
LOG(ERROR) << "Unknown option for " << name_ << " command: '" << args[i]
<< "'. Try `simpleperf help " << name_ << "`";
}
typedef std::function<std::unique_ptr<Command>(void)> callback_t;
static std::map<std::string, callback_t>& CommandMap() {
// commands is used in the constructor of Command. Defining it as a static
// variable in a function makes sure it is initialized before use.
static std::map<std::string, callback_t> command_map;
return command_map;
}
void RegisterCommand(const std::string& cmd_name,
const std::function<std::unique_ptr<Command>(void)>& callback) {
CommandMap().insert(std::make_pair(cmd_name, callback));
}
void UnRegisterCommand(const std::string& cmd_name) {
CommandMap().erase(cmd_name);
}
std::unique_ptr<Command> CreateCommandInstance(const std::string& cmd_name) {
auto it = CommandMap().find(cmd_name);
return (it == CommandMap().end()) ? nullptr : (it->second)();
}
const std::vector<std::string> GetAllCommandNames() {
std::vector<std::string> names;
for (auto pair : CommandMap()) {
names.push_back(pair.first);
}
return names;
}
extern void RegisterDumpRecordCommand();
extern void RegisterHelpCommand();
extern void RegisterListCommand();
extern void RegisterKmemCommand();
extern void RegisterRecordCommand();
extern void RegisterReportCommand();
extern void RegisterReportSampleCommand();
extern void RegisterStatCommand();
class CommandRegister {
public:
CommandRegister() {
RegisterDumpRecordCommand();
RegisterHelpCommand();
RegisterKmemCommand();
RegisterReportCommand();
RegisterReportSampleCommand();
#if defined(__linux__)
RegisterListCommand();
RegisterRecordCommand();
RegisterStatCommand();
#endif
}
};
CommandRegister command_register;
bool RunSimpleperfCmd(int argc, char** argv) {
android::base::InitLogging(argv, android::base::StderrLogger);
std::vector<std::string> args;
android::base::LogSeverity log_severity = android::base::INFO;
for (int i = 1; i < argc; ++i) {
if (strcmp(argv[i], "--help") == 0 || strcmp(argv[i], "-h") == 0) {
args.insert(args.begin(), "help");
} else if (strcmp(argv[i], "--log") == 0) {
if (i + 1 < argc) {
++i;
if (!GetLogSeverity(argv[i], &log_severity)) {
LOG(ERROR) << "Unknown log severity: " << argv[i];
return false;
}
} else {
LOG(ERROR) << "Missing argument for --log option.\n";
return false;
}
} else if (strcmp(argv[i], "--version") == 0) {
LOG(INFO) << "Simpleperf version " << GetSimpleperfVersion();
return true;
} else {
args.push_back(argv[i]);
}
}
android::base::ScopedLogSeverity severity(log_severity);
if (args.empty()) {
args.push_back("help");
}
std::unique_ptr<Command> command = CreateCommandInstance(args[0]);
if (command == nullptr) {
LOG(ERROR) << "malformed command line: unknown command " << args[0];
return false;
}
std::string command_name = args[0];
args.erase(args.begin());
LOG(DEBUG) << "command '" << command_name << "' starts running";
bool result = command->Run(args);
LOG(DEBUG) << "command '" << command_name << "' "
<< (result ? "finished successfully" : "failed");
return result;
}
|
