1 /* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
2 *
3 * Permission is hereby granted, free of charge, to any person obtaining a copy
4 * of this software and associated documentation files (the "Software"), to
5 * deal in the Software without restriction, including without limitation the
6 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
7 * sell copies of the Software, and to permit persons to whom the Software is
8 * furnished to do so, subject to the following conditions:
9 *
10 * The above copyright notice and this permission notice shall be included in
11 * all copies or substantial portions of the Software.
12 *
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
18 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
19 * IN THE SOFTWARE.
20 */
21
22 #include <assert.h>
23
24 #include "uv.h"
25 #include "internal.h"
26
27
28 /* Ntdll function pointers */
29 sRtlGetVersion pRtlGetVersion;
30 sRtlNtStatusToDosError pRtlNtStatusToDosError;
31 sNtDeviceIoControlFile pNtDeviceIoControlFile;
32 sNtQueryInformationFile pNtQueryInformationFile;
33 sNtSetInformationFile pNtSetInformationFile;
34 sNtQueryVolumeInformationFile pNtQueryVolumeInformationFile;
35 sNtQueryDirectoryFile pNtQueryDirectoryFile;
36 sNtQuerySystemInformation pNtQuerySystemInformation;
37 sNtQueryInformationProcess pNtQueryInformationProcess;
38
39 /* Kernel32 function pointers */
40 sGetQueuedCompletionStatusEx pGetQueuedCompletionStatusEx;
41
42 /* Powrprof.dll function pointer */
43 sPowerRegisterSuspendResumeNotification pPowerRegisterSuspendResumeNotification;
44
45 /* User32.dll function pointer */
46 sSetWinEventHook pSetWinEventHook;
47
48
uv_winapi_init(void)49 void uv_winapi_init(void) {
50 HMODULE ntdll_module;
51 HMODULE powrprof_module;
52 HMODULE user32_module;
53 HMODULE kernel32_module;
54
55 ntdll_module = GetModuleHandleA("ntdll.dll");
56 if (ntdll_module == NULL) {
57 uv_fatal_error(GetLastError(), "GetModuleHandleA");
58 }
59
60 pRtlGetVersion = (sRtlGetVersion) GetProcAddress(ntdll_module,
61 "RtlGetVersion");
62
63 pRtlNtStatusToDosError = (sRtlNtStatusToDosError) GetProcAddress(
64 ntdll_module,
65 "RtlNtStatusToDosError");
66 if (pRtlNtStatusToDosError == NULL) {
67 uv_fatal_error(GetLastError(), "GetProcAddress");
68 }
69
70 pNtDeviceIoControlFile = (sNtDeviceIoControlFile) GetProcAddress(
71 ntdll_module,
72 "NtDeviceIoControlFile");
73 if (pNtDeviceIoControlFile == NULL) {
74 uv_fatal_error(GetLastError(), "GetProcAddress");
75 }
76
77 pNtQueryInformationFile = (sNtQueryInformationFile) GetProcAddress(
78 ntdll_module,
79 "NtQueryInformationFile");
80 if (pNtQueryInformationFile == NULL) {
81 uv_fatal_error(GetLastError(), "GetProcAddress");
82 }
83
84 pNtSetInformationFile = (sNtSetInformationFile) GetProcAddress(
85 ntdll_module,
86 "NtSetInformationFile");
87 if (pNtSetInformationFile == NULL) {
88 uv_fatal_error(GetLastError(), "GetProcAddress");
89 }
90
91 pNtQueryVolumeInformationFile = (sNtQueryVolumeInformationFile)
92 GetProcAddress(ntdll_module, "NtQueryVolumeInformationFile");
93 if (pNtQueryVolumeInformationFile == NULL) {
94 uv_fatal_error(GetLastError(), "GetProcAddress");
95 }
96
97 pNtQueryDirectoryFile = (sNtQueryDirectoryFile)
98 GetProcAddress(ntdll_module, "NtQueryDirectoryFile");
99 if (pNtQueryVolumeInformationFile == NULL) {
100 uv_fatal_error(GetLastError(), "GetProcAddress");
101 }
102
103 pNtQuerySystemInformation = (sNtQuerySystemInformation) GetProcAddress(
104 ntdll_module,
105 "NtQuerySystemInformation");
106 if (pNtQuerySystemInformation == NULL) {
107 uv_fatal_error(GetLastError(), "GetProcAddress");
108 }
109
110 pNtQueryInformationProcess = (sNtQueryInformationProcess) GetProcAddress(
111 ntdll_module,
112 "NtQueryInformationProcess");
113 if (pNtQueryInformationProcess == NULL) {
114 uv_fatal_error(GetLastError(), "GetProcAddress");
115 }
116
117 kernel32_module = GetModuleHandleA("kernel32.dll");
118 if (kernel32_module == NULL) {
119 uv_fatal_error(GetLastError(), "GetModuleHandleA");
120 }
121
122 pGetQueuedCompletionStatusEx = (sGetQueuedCompletionStatusEx) GetProcAddress(
123 kernel32_module,
124 "GetQueuedCompletionStatusEx");
125
126 powrprof_module = LoadLibraryA("powrprof.dll");
127 if (powrprof_module != NULL) {
128 pPowerRegisterSuspendResumeNotification = (sPowerRegisterSuspendResumeNotification)
129 GetProcAddress(powrprof_module, "PowerRegisterSuspendResumeNotification");
130 }
131
132 user32_module = LoadLibraryA("user32.dll");
133 if (user32_module != NULL) {
134 pSetWinEventHook = (sSetWinEventHook)
135 GetProcAddress(user32_module, "SetWinEventHook");
136 }
137 }
138