1// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
2// for details. All rights reserved. Use of this source code is governed by a
3// BSD-style license that can be found in the LICENSE file.
4
5#include "platform/globals.h"
6#if defined(HOST_OS_LINUX)
7
8#include <errno.h> // NOLINT
9#include <netdb.h> // NOLINT
10#include <sys/time.h> // NOLINT
11#include <time.h> // NOLINT
12
13#include "bin/utils.h"
14#include "platform/assert.h"
15#include "platform/utils.h"
16
17namespace dart {
18namespace bin {
19
20OSError::OSError() : sub_system_(kSystem), code_(0), message_(NULL) {
21 Reload();
22}
23
24void OSError::Reload() {
25 SetCodeAndMessage(kSystem, errno);
26}
27
28void OSError::SetCodeAndMessage(SubSystem sub_system, int code) {
29 set_sub_system(sub_system);
30 set_code(code);
31 if (sub_system == kSystem) {
32 const int kBufferSize = 1024;
33 char error_buf[kBufferSize];
34 SetMessage(Utils::StrError(code, error_buf, kBufferSize));
35 } else if (sub_system == kGetAddressInfo) {
36 SetMessage(gai_strerror(code));
37 } else {
38 UNREACHABLE();
39 }
40}
41
42const char* StringUtils::ConsoleStringToUtf8(const char* str,
43 intptr_t len,
44 intptr_t* result_len) {
45 UNIMPLEMENTED();
46 return NULL;
47}
48
49const char* StringUtils::Utf8ToConsoleString(const char* utf8,
50 intptr_t len,
51 intptr_t* result_len) {
52 UNIMPLEMENTED();
53 return NULL;
54}
55
56char* StringUtils::ConsoleStringToUtf8(char* str,
57 intptr_t len,
58 intptr_t* result_len) {
59 UNIMPLEMENTED();
60 return NULL;
61}
62
63char* StringUtils::Utf8ToConsoleString(char* utf8,
64 intptr_t len,
65 intptr_t* result_len) {
66 UNIMPLEMENTED();
67 return NULL;
68}
69
70bool ShellUtils::GetUtf8Argv(int argc, char** argv) {
71 return false;
72}
73
74void TimerUtils::InitOnce() {}
75
76int64_t TimerUtils::GetCurrentMonotonicMillis() {
77 return GetCurrentMonotonicMicros() / 1000;
78}
79
80int64_t TimerUtils::GetCurrentMonotonicMicros() {
81 struct timespec ts;
82 if (clock_gettime(CLOCK_MONOTONIC, &ts) != 0) {
83 UNREACHABLE();
84 return 0;
85 }
86 // Convert to microseconds.
87 int64_t result = ts.tv_sec;
88 result *= kMicrosecondsPerSecond;
89 result += (ts.tv_nsec / kNanosecondsPerMicrosecond);
90 return result;
91}
92
93void TimerUtils::Sleep(int64_t millis) {
94 struct timespec req; // requested.
95 struct timespec rem; // remainder.
96 int64_t micros = millis * kMicrosecondsPerMillisecond;
97 int64_t seconds = micros / kMicrosecondsPerSecond;
98 micros = micros - seconds * kMicrosecondsPerSecond;
99 int64_t nanos = micros * kNanosecondsPerMicrosecond;
100 req.tv_sec = seconds;
101 req.tv_nsec = nanos;
102 while (true) {
103 int r = nanosleep(&req, &rem);
104 if (r == 0) {
105 break;
106 }
107 // We should only ever see an interrupt error.
108 ASSERT(errno == EINTR);
109 // Copy remainder into requested and repeat.
110 req = rem;
111 }
112}
113
114} // namespace bin
115} // namespace dart
116
117#endif // defined(HOST_OS_LINUX)
118