-
Notifications
You must be signed in to change notification settings - Fork 5.7k
/
Porting.cpp
273 lines (244 loc) · 8.54 KB
/
Porting.cpp
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
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
/*
* Copyright 2010-2017 JetBrains s.r.o.
*
* 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.
*/
#ifdef KONAN_ANDROID
#include <android/log.h>
#endif
#include <cstdio>
#include <cstdlib>
#include <stdarg.h>
#include <stdint.h>
#include <string.h>
#include <pthread.h>
#include <unistd.h>
#if KONAN_WINDOWS
#include <windows.h>
#endif
#include <chrono>
#include "CallsChecker.hpp"
#include "Common.h"
#include "CompilerConstants.hpp"
#include "Porting.h"
#include "KAssert.h"
using namespace kotlin;
namespace konan {
// Console operations.
void consoleInit() {
#if KONAN_WINDOWS
// Note that this code enforces UTF-8 console output, so we may want to rethink
// how we perform console IO, if it turns out, that UTF-16 is better output format.
::SetConsoleCP(CP_UTF8);
::SetConsoleOutputCP(CP_UTF8);
// FIXME: should set original CP back during the deinit of the program.
// Otherwise, this codepage remains in the console.
#endif
}
void consoleWriteUtf8(const char* utf8, uint32_t sizeBytes) {
#ifdef KONAN_ANDROID
if (kotlin::compiler::printToAndroidLogcat()) {
// TODO: use sizeBytes!
__android_log_print(ANDROID_LOG_INFO, "Konan_main", "%s", utf8);
} else {
::write(STDOUT_FILENO, utf8, sizeBytes);
}
#else
::write(STDOUT_FILENO, utf8, sizeBytes);
#endif
}
void consoleErrorUtf8(const char* utf8, uint32_t sizeBytes) {
#ifdef KONAN_ANDROID
if (kotlin::compiler::printToAndroidLogcat()) {
// TODO: use sizeBytes!
__android_log_print(ANDROID_LOG_ERROR, "Konan_main", "%s", utf8);
} else {
::write(STDERR_FILENO, utf8, sizeBytes);
}
#else
::write(STDERR_FILENO, utf8, sizeBytes);
#endif
}
#if KONAN_WINDOWS
int getLastErrorMessage(char* message, uint32_t size) {
auto errCode = ::GetLastError();
if (errCode) {
auto flags = FORMAT_MESSAGE_FROM_SYSTEM;
auto errMsgBufSize = size / 4;
wchar_t errMsgBuffer[errMsgBufSize];
::FormatMessageW(flags, NULL, errCode, 0, errMsgBuffer, errMsgBufSize, NULL);
::WideCharToMultiByte(CP_UTF8, 0, errMsgBuffer, -1, message, size, NULL, NULL);
}
return errCode;
}
#endif
int32_t consoleReadUtf8(void* utf8, uint32_t maxSizeBytes) {
#if KONAN_WINDOWS
auto length = 0;
void *stdInHandle = ::GetStdHandle(STD_INPUT_HANDLE);
if (::GetFileType(stdInHandle) == FILE_TYPE_CHAR) {
unsigned long bufferRead;
// In UTF-16 there are surrogate pairs that a 2 * 16-bit long (4 bytes).
auto bufferLength = maxSizeBytes / 4 - 1;
wchar_t buffer[bufferLength];
if (::ReadConsoleW(stdInHandle, buffer, bufferLength, &bufferRead, NULL)) {
length = ::WideCharToMultiByte(CP_UTF8, 0, buffer, bufferRead, (char*) utf8,
maxSizeBytes - 1, NULL, NULL);
if (!length && kotlin::compiler::shouldContainDebugInfo()) {
char msg[512];
auto errCode = getLastErrorMessage(msg, sizeof(msg));
consoleErrorf("UTF-16 to UTF-8 conversion error %d: %s", errCode, msg);
}
((char*) utf8)[length] = 0;
} else if (kotlin::compiler::shouldContainDebugInfo()) {
char msg[512];
auto errCode = getLastErrorMessage(msg, sizeof(msg));
consoleErrorf("Console read failure: %d %s", errCode, msg);
}
} else {
length = ::read(STDIN_FILENO, utf8, maxSizeBytes - 1);
}
#else
auto length = ::read(STDIN_FILENO, utf8, maxSizeBytes - 1);
#endif
if (length <= 0) return -1;
char* start = reinterpret_cast<char*>(utf8);
char* current = start + length - 1;
bool isTrimming = true;
while (current >= start && isTrimming) {
switch (*current) {
case '\n':
case '\r':
*current = 0;
length--;
break;
default:
isTrimming = false;
}
current--;
}
return length;
}
NO_EXTERNAL_CALLS_CHECK void consolePrintf(const char* format, ...) {
char buffer[1024];
va_list args;
va_start(args, format);
int rv = std::vsnprintf(buffer, sizeof(buffer), format, args);
if (rv < 0) return; // TODO: this may be too much exotic, but should i try to print itoa(error) and terminate?
if (static_cast<size_t>(rv) >= sizeof(buffer)) rv = sizeof(buffer) - 1; // TODO: Consider realloc or report truncating.
va_end(args);
consoleWriteUtf8(buffer, rv);
}
// TODO: Avoid code duplication.
NO_EXTERNAL_CALLS_CHECK void consoleErrorf(const char* format, ...) {
char buffer[1024];
va_list args;
va_start(args, format);
int rv = std::vsnprintf(buffer, sizeof(buffer), format, args);
if (rv < 0) return; // TODO: this may be too much exotic, but should i try to print itoa(error) and terminate?
if (static_cast<size_t>(rv) >= sizeof(buffer)) rv = sizeof(buffer) - 1; // TODO: Consider realloc or report truncating.
va_end(args);
consoleErrorUtf8(buffer, rv);
}
void consoleFlush() {
::fflush(stdout);
::fflush(stderr);
}
pthread_key_t terminationKey;
pthread_once_t terminationKeyOnceControl = PTHREAD_ONCE_INIT;
typedef void (*destructor_t)(void*);
struct DestructorRecord {
struct DestructorRecord* next;
destructor_t destructor;
void* destructorParameter;
};
static void onThreadExitCallback(void* value) {
DestructorRecord* record = reinterpret_cast<DestructorRecord*>(value);
pthread_setspecific(terminationKey, nullptr);
while (record != nullptr) {
record->destructor(record->destructorParameter);
auto next = record->next;
std::free(record);
record = next;
}
}
NO_EXTERNAL_CALLS_CHECK bool isOnThreadExitNotSetOrAlreadyStarted() {
return terminationKey != 0 && pthread_getspecific(terminationKey) == nullptr;
}
#if KONAN_LINUX
static pthread_key_t dummyKey;
#endif
static void onThreadExitInit() {
#if KONAN_LINUX
// Due to glibc bug we have to create first key as dummy, to avoid
// conflicts with potentially uninitialized dlfcn error key.
// https://code.woboq.org/userspace/glibc/dlfcn/dlerror.c.html#237
// As one may see, glibc checks value of the key even if it was not inited (and == 0),
// and so data associated with our legit key (== 0 as being the first one) is used.
// Other libc are not affected, as usually == 0 pthread key is impossible.
pthread_key_create(&dummyKey, nullptr);
#endif
pthread_key_create(&terminationKey, onThreadExitCallback);
}
void onThreadExit(void (*destructor)(void*), void* destructorParameter) {
// We cannot use pthread_cleanup_push() as it is lexical scope bound.
pthread_once(&terminationKeyOnceControl, onThreadExitInit);
DestructorRecord* destructorRecord = (DestructorRecord*)std::calloc(1, sizeof(DestructorRecord));
destructorRecord->destructor = destructor;
destructorRecord->destructorParameter = destructorParameter;
destructorRecord->next =
reinterpret_cast<DestructorRecord*>(pthread_getspecific(terminationKey));
pthread_setspecific(terminationKey, destructorRecord);
}
#if KONAN_LINUX
#include <unistd.h>
#include <sys/types.h>
#include <sys/syscall.h>
/**
* We can't use gettid from glibc 2.30 because it is too new for us.
*/
NO_EXTERNAL_CALLS_CHECK NO_INLINE int gettid() {
return static_cast<int>(syscall(__NR_gettid));
}
#endif
NO_EXTERNAL_CALLS_CHECK int currentThreadId() {
#if defined(KONAN_OSX) or defined(KONAN_IOS) or defined(KONAN_TVOS) or defined(KONAN_WATCHOS)
uint64_t tid;
pthread_t self = pthread_self();
RuntimeCheck(!pthread_threadid_np(self, &tid), "Error getting thread id");
RuntimeCheck((*(reinterpret_cast<int32_t*>(&tid) + 1)) == 0, "Thread id is not a uint32");
return tid;
#elif KONAN_ANDROID
return gettid();
#elif KONAN_LINUX
return gettid();
#elif KONAN_WINDOWS
return GetCurrentThreadId();
#else
#error "How to find currentThreadId()?"
#endif
}
// Time operations.
using namespace std::chrono;
// Get steady clock as a source of time
using steady_time_clock = std::conditional<high_resolution_clock::is_steady, high_resolution_clock, steady_clock>::type;
uint64_t getTimeMillis() {
return duration_cast<milliseconds>(steady_time_clock::now().time_since_epoch()).count();
}
uint64_t getTimeNanos() {
return duration_cast<nanoseconds>(steady_time_clock::now().time_since_epoch()).count();
}
uint64_t getTimeMicros() {
return duration_cast<microseconds>(steady_time_clock::now().time_since_epoch()).count();
}
} // namespace konan