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
|
#include <node.h>
#include <node_os.h>
#include <platform.h>
#include <v8.h>
#include <errno.h>
#include <string.h>
#ifdef __MINGW32__
# include <io.h>
# include <platform_win32.h>
# include <platform_win32_winsock.h>
#endif
#ifdef __POSIX__
# include <unistd.h> // gethostname, sysconf
# include <sys/utsname.h>
#endif
namespace node {
using namespace v8;
static Handle<Value> GetHostname(const Arguments& args) {
HandleScope scope;
char s[255];
int r = gethostname(s, 255);
if (r < 0) {
#ifdef __POSIX__
return ThrowException(ErrnoException(errno, "gethostname"));
#else // __MINGW32__
return ThrowException(ErrnoException(WSAGetLastError(), "gethostname"));
#endif // __MINGW32__
}
return scope.Close(String::New(s));
}
static Handle<Value> GetOSType(const Arguments& args) {
HandleScope scope;
#ifdef __POSIX__
char type[256];
struct utsname info;
uname(&info);
strncpy(type, info.sysname, strlen(info.sysname));
type[strlen(info.sysname)] = 0;
return scope.Close(String::New(type));
#else // __MINGW32__
return scope.Close(String::New("Windows_NT"));
#endif
}
static Handle<Value> GetOSRelease(const Arguments& args) {
HandleScope scope;
char release[256];
#ifdef __POSIX__
struct utsname info;
uname(&info);
strncpy(release, info.release, strlen(info.release));
release[strlen(info.release)] = 0;
#else // __MINGW32__
OSVERSIONINFO info;
info.dwOSVersionInfoSize = sizeof(info);
if (GetVersionEx(&info) == 0) {
return Undefined();
}
sprintf(release, "%d.%d.%d", static_cast<int>(info.dwMajorVersion),
static_cast<int>(info.dwMinorVersion), static_cast<int>(info.dwBuildNumber));
#endif
return scope.Close(String::New(release));
}
static Handle<Value> GetCPUInfo(const Arguments& args) {
HandleScope scope;
Local<Array> cpus;
int r = Platform::GetCPUInfo(&cpus);
if (r < 0) {
return Undefined();
}
return scope.Close(cpus);
}
static Handle<Value> GetFreeMemory(const Arguments& args) {
HandleScope scope;
double amount = Platform::GetFreeMemory();
if (amount < 0) {
return Undefined();
}
return scope.Close(Number::New(amount));
}
static Handle<Value> GetTotalMemory(const Arguments& args) {
HandleScope scope;
double amount = Platform::GetTotalMemory();
if (amount < 0) {
return Undefined();
}
return scope.Close(Number::New(amount));
}
static Handle<Value> GetUptime(const Arguments& args) {
HandleScope scope;
double uptime = Platform::GetUptime();
if (uptime < 0) {
return Undefined();
}
return scope.Close(Number::New(uptime));
}
static Handle<Value> GetLoadAvg(const Arguments& args) {
HandleScope scope;
Local<Array> loads = Array::New(3);
int r = Platform::GetLoadAvg(&loads);
if (r < 0) {
return Undefined();
}
return scope.Close(loads);
}
#ifdef __MINGW32__
static Handle<Value> OpenOSHandle(const Arguments& args) {
HandleScope scope;
intptr_t handle = args[0]->IntegerValue();
int fd = _open_osfhandle(handle, 0);
if (fd < 0)
return ThrowException(ErrnoException(errno, "_open_osfhandle"));
return scope.Close(Integer::New(fd));
}
#endif // __MINGW32__
void OS::Initialize(v8::Handle<v8::Object> target) {
HandleScope scope;
NODE_SET_METHOD(target, "getHostname", GetHostname);
NODE_SET_METHOD(target, "getLoadAvg", GetLoadAvg);
NODE_SET_METHOD(target, "getUptime", GetUptime);
NODE_SET_METHOD(target, "getTotalMem", GetTotalMemory);
NODE_SET_METHOD(target, "getFreeMem", GetFreeMemory);
NODE_SET_METHOD(target, "getCPUs", GetCPUInfo);
NODE_SET_METHOD(target, "getOSType", GetOSType);
NODE_SET_METHOD(target, "getOSRelease", GetOSRelease);
#ifdef __MINGW32__
NODE_SET_METHOD(target, "openOSHandle", OpenOSHandle);
#endif
}
} // namespace node
NODE_MODULE(node_os, node::OS::Initialize);
|
