aboutsummaryrefslogtreecommitdiffstats
path: root/erts/test/nt_SUITE_data/nt_info.c
blob: 33cf046bb627984e286633f9f9d9f4f0d311289f (plain) (blame)
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
/*
 * %CopyrightBegin%
 * 
 * Copyright Ericsson AB 1998-2009. All Rights Reserved.
 * 
 * The contents of this file are subject to the Erlang Public License,
 * Version 1.1, (the "License"); you may not use this file except in
 * compliance with the License. You should have received a copy of the
 * Erlang Public License along with this software. If not, it can be
 * retrieved online at http://www.erlang.org/.
 * 
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 * the License for the specific language governing rights and limitations
 * under the License.
 * 
 * %CopyrightEnd%
 */
/*
 * This is a simple command that gives some interesting
 * system information on NT.
 * It is run as a port program by the nt test suite to find out priorities
 * of programs etc.
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#if defined(VXWORKS)
int nt_info(int argc, char **argv){
    printf("Hello �lvsj�!\n");
    return 0;
}
#elif !defined(__WIN32__)
int main(int argc, char **argv){
    printf("Hello �lvsj�!\n");
    return 0;
}
#else /* Windows NT, here we go... */

#include <windows.h>


int erlang_format = 0;

#if 0
int last_error = 0;

void print_last_error(void){
  char *mes;
  FormatMessage(
		FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
		NULL,    
		(last_error) ? last_error : GetLastError(),
		MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), 
		(LPTSTR) &mes,    
		0,    
		NULL );
    fprintf(stderr,"Error: %s",mes);
    LocalFree(mes);
}
#endif

typedef BOOL (WINAPI *tEnumProcesses)(DWORD *, DWORD, DWORD *);
typedef BOOL (WINAPI *tEnumProcessModules)(HANDLE, HMODULE *, DWORD, DWORD *);
typedef DWORD (WINAPI *tGetModuleBaseName)(HANDLE, HMODULE, char *, DWORD);

static tGetModuleBaseName pGetModuleBaseName = NULL;
static tEnumProcessModules pEnumProcessModules = NULL;
static tEnumProcesses pEnumProcesses = NULL;

static BOOL init_fpointers(void){
    HINSTANCE instance = LoadLibrary("PSAPI.DLL");
    if(instance == NULL){
	fprintf(stderr,"Failed to load PSAPI.DLL.\n");
	return FALSE;
    }
    if((pEnumProcesses = 
	(tEnumProcesses) GetProcAddress(instance,"EnumProcesses")) ==
       NULL){
	fprintf(stderr,"Failed to find EnumProcesses in DLL.\n");
	return FALSE;
    }
    if((pEnumProcessModules = 
	(tEnumProcessModules) GetProcAddress(instance,"EnumProcessModules")) ==
       NULL){
	fprintf(stderr,"Failed to find EnumProcessModules in DLL.\n");
	return FALSE;
    }
    if((pGetModuleBaseName = 
	(tGetModuleBaseName) GetProcAddress(instance,"GetModuleBaseNameA")) ==
       NULL){
	fprintf(stderr,"Failed to find GetModuleBaseName in DLL.\n");
	return FALSE;
    }
    return TRUE;
}
	

void one_line(DWORD pid){
    char pname[MAX_PATH] = "???";
    HMODULE hmod = NULL;
    DWORD dummy;
    DWORD priority = -1;
    struct {
	DWORD sym;
	char *txt;
    } tab[] = {
	{HIGH_PRIORITY_CLASS,"high"},
	{IDLE_PRIORITY_CLASS, "idle"},
	{NORMAL_PRIORITY_CLASS,"normal"},
	{REALTIME_PRIORITY_CLASS, "realtime"}
    };
    int tabsiz = sizeof(tab)/sizeof(*tab);
    char *class = "???";
    int i;

    HANDLE hproc = OpenProcess(PROCESS_QUERY_INFORMATION |
			       PROCESS_VM_READ,
			       FALSE, pid );
    if(!hproc)
	goto print;
    if(!(*pEnumProcessModules)(hproc,&hmod,sizeof(hmod),&dummy))
	goto print;
    if(!(*pGetModuleBaseName)(hproc,hmod,pname,sizeof(pname)))
	goto print;
    if(!(priority = GetPriorityClass(hproc)))
	goto print;
    for(i=0;i<tabsiz;++i)
	if(tab[i].sym == priority)
	    class = tab[i].txt;
print:
    if(erlang_format)
	printf("{\"%s\", %lu, \"%s\"}%s", pname, pid, class,
	       (erlang_format > 1) ? "" : "\n");
    else
	printf("%-32s %8lu %-9s\n", pname, pid, class);
    if(hproc)
	CloseHandle(hproc);
    if(hmod)
	CloseHandle(hmod);
}
	
int do_simple_ps(void){
    DWORD procs[1024];
    DWORD num_procs;
    DWORD needed;
    int i;

    if(!(*pEnumProcesses)(procs,sizeof(procs),&needed)){
	fprintf(stderr,"Failed to EnumProcesses\n");
	return 1;
    }
    num_procs = needed / sizeof(DWORD);
    if(erlang_format > 1)
	printf("[");
    for(i=0;i<num_procs;++i){
	one_line(procs[i]);
	if(erlang_format > 1 && i < num_procs -1)
	    printf(", ");
    }
    if(erlang_format > 1)
	printf("]. \n");
    return 0;
}

int main(int argc, char **argv){
    if(argc>1 && !strcmp(argv[1],"-e"))
	erlang_format = 1;
    else if(argc>1 && !strcmp(argv[1],"-E"))
	erlang_format = 2;
    if(!init_fpointers())
	return 1;
    return do_simple_ps();
}
#endif