summaryrefslogtreecommitdiffstats
path: root/src/util/os_misc.c
blob: 436bc38604b8757e96154af1ce089d70ae187dae (plain)
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
/**************************************************************************
 *
 * Copyright 2008-2010 Vmware, Inc.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 **************************************************************************/


#include "os_misc.h"

#include <stdarg.h>


#if DETECT_OS_WINDOWS

#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN      // Exclude rarely-used stuff from Windows headers
#endif
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>

#else

#include <stdio.h>
#include <stdlib.h>

#endif


#if DETECT_OS_LINUX || DETECT_OS_CYGWIN || DETECT_OS_SOLARIS || DETECT_OS_HURD
#  include <unistd.h>
#elif DETECT_OS_APPLE || DETECT_OS_BSD
#  include <sys/sysctl.h>
#elif DETECT_OS_HAIKU
#  include <kernel/OS.h>
#elif DETECT_OS_WINDOWS
#  include <windows.h>
#else
#error unexpected platform in os_sysinfo.c
#endif


void
os_log_message(const char *message)
{
   /* If the GALLIUM_LOG_FILE environment variable is set to a valid filename,
    * write all messages to that file.
    */
   static FILE *fout = NULL;

   if (!fout) {
#ifdef DEBUG
      /* one-time init */
      const char *filename = os_get_option("GALLIUM_LOG_FILE");
      if (filename) {
         const char *mode = "w";
         if (filename[0] == '+') {
            /* If the filename is prefixed with '+' then open the file for
             * appending instead of normal writing.
             */
            mode = "a";
            filename++; /* skip the '+' */
         }
         fout = fopen(filename, mode);
      }
#endif
      if (!fout)
         fout = stderr;
   }

#if DETECT_OS_WINDOWS
   OutputDebugStringA(message);
   if(GetConsoleWindow() && !IsDebuggerPresent()) {
      fflush(stdout);
      fputs(message, fout);
      fflush(fout);
   }
   else if (fout != stderr) {
      fputs(message, fout);
      fflush(fout);
   }
#else /* !DETECT_OS_WINDOWS */
   fflush(stdout);
   fputs(message, fout);
   fflush(fout);
#endif
}


#if !defined(EMBEDDED_DEVICE)
const char *
os_get_option(const char *name)
{
   return getenv(name);
}
#endif /* !EMBEDDED_DEVICE */


/**
 * Return the size of the total physical memory.
 * \param size returns the size of the total physical memory
 * \return true for success, or false on failure
 */
bool
os_get_total_physical_memory(uint64_t *size)
{
#if DETECT_OS_LINUX || DETECT_OS_CYGWIN || DETECT_OS_SOLARIS || DETECT_OS_HURD
   const long phys_pages = sysconf(_SC_PHYS_PAGES);
   const long page_size = sysconf(_SC_PAGE_SIZE);

   if (phys_pages <= 0 || page_size <= 0)
      return false;

   *size = (uint64_t)phys_pages * (uint64_t)page_size;
   return true;
#elif DETECT_OS_APPLE || DETECT_OS_BSD
   size_t len = sizeof(*size);
   int mib[2];

   mib[0] = CTL_HW;
#if DETECT_OS_APPLE
   mib[1] = HW_MEMSIZE;
#elif DETECT_OS_NETBSD || DETECT_OS_OPENBSD
   mib[1] = HW_PHYSMEM64;
#elif DETECT_OS_FREEBSD
   mib[1] = HW_REALMEM;
#elif DETECT_OS_DRAGONFLY
   mib[1] = HW_PHYSMEM;
#else
#error Unsupported *BSD
#endif

   return (sysctl(mib, 2, size, &len, NULL, 0) == 0);
#elif DETECT_OS_HAIKU
   system_info info;
   status_t ret;

   ret = get_system_info(&info);
   if (ret != B_OK || info.max_pages <= 0)
      return false;

   *size = (uint64_t)info.max_pages * (uint64_t)B_PAGE_SIZE;
   return true;
#elif DETECT_OS_WINDOWS
   MEMORYSTATUSEX status;
   BOOL ret;

   status.dwLength = sizeof(status);
   ret = GlobalMemoryStatusEx(&status);
   *size = status.ullTotalPhys;
   return (ret == TRUE);
#else
#error unexpected platform in os_sysinfo.c
   return false;
#endif
}