src/util/os_misc.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2008-2010 Vmware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28
  29 #include "os_misc.h"
  30
  31 #include <stdarg.h>
  32
  33
  34 #if DETECT_OS_WINDOWS
  35
  36 #ifndef WIN32_LEAN_AND_MEAN
  37 #define WIN32_LEAN_AND_MEAN      // Exclude rarely-used stuff from Windows headers
  38 #endif
  39 #include <windows.h>
  40 #include <stdio.h>
  41 #include <stdlib.h>
  42
  43 #else
  44
  45 #include <stdio.h>
  46 #include <stdlib.h>
  47
  48 #endif
  49
  50
  51 #if DETECT_OS_ANDROID
  52 #  define LOG_TAG "MESA"
  53 #  include <unistd.h>
  54 #  include <log/log.h>
  55 #elif DETECT_OS_LINUX || DETECT_OS_CYGWIN || DETECT_OS_SOLARIS || DETECT_OS_HURD
  56 #  include <unistd.h>
  57 #elif DETECT_OS_APPLE || DETECT_OS_BSD
  58 #  include <sys/sysctl.h>
  59 #elif DETECT_OS_HAIKU
  60 #  include <kernel/OS.h>
  61 #elif DETECT_OS_WINDOWS
  62 #  include <windows.h>
  63 #else
  64 #error unexpected platform in os_sysinfo.c
  65 #endif
  66
  67
  68 void
  69 os_log_message(const char *message)
  70 {
  71    /* If the GALLIUM_LOG_FILE environment variable is set to a valid filename,
  72     * write all messages to that file.
  73     */
  74    static FILE *fout = NULL;
  75
  76    if (!fout) {
  77 #ifdef DEBUG
  78       /* one-time init */
  79       const char *filename = os_get_option("GALLIUM_LOG_FILE");
  80       if (filename) {
  81          const char *mode = "w";
  82          if (filename[0] == '+') {
  83             /* If the filename is prefixed with '+' then open the file for
  84              * appending instead of normal writing.
  85              */
  86             mode = "a";
  87             filename++; /* skip the '+' */
  88          }
  89          fout = fopen(filename, mode);
  90       }
  91 #endif
  92       if (!fout)
  93          fout = stderr;
  94    }
  95
  96 #if DETECT_OS_WINDOWS
  97    OutputDebugStringA(message);
  98    if(GetConsoleWindow() && !IsDebuggerPresent()) {
  99       fflush(stdout);
 100       fputs(message, fout);
 101       fflush(fout);
 102    }
 103    else if (fout != stderr) {
 104       fputs(message, fout);
 105       fflush(fout);
 106    }
 107 #else /* !DETECT_OS_WINDOWS */
 108    fflush(stdout);
 109    fputs(message, fout);
 110    fflush(fout);
 111 #  if DETECT_OS_ANDROID
 112    LOG_PRI(ANDROID_LOG_ERROR, LOG_TAG, "%s", message);
 113 #  endif
 114 #endif
 115 }
 116
 117
 118 #if !defined(EMBEDDED_DEVICE)
 119 const char *
 120 os_get_option(const char *name)
 121 {
 122    return getenv(name);
 123 }
 124 #endif /* !EMBEDDED_DEVICE */
 125
 126
 127 /**
 128  * Return the size of the total physical memory.
 129  * \param size returns the size of the total physical memory
 130  * \return true for success, or false on failure
 131  */
 132 bool
 133 os_get_total_physical_memory(uint64_t *size)
 134 {
 135 #if DETECT_OS_LINUX || DETECT_OS_CYGWIN || DETECT_OS_SOLARIS || DETECT_OS_HURD
 136    const long phys_pages = sysconf(_SC_PHYS_PAGES);
 137    const long page_size = sysconf(_SC_PAGE_SIZE);
 138
 139    if (phys_pages <= 0 || page_size <= 0)
 140       return false;
 141
 142    *size = (uint64_t)phys_pages * (uint64_t)page_size;
 143    return true;
 144 #elif DETECT_OS_APPLE || DETECT_OS_BSD
 145    size_t len = sizeof(*size);
 146    int mib[2];
 147
 148    mib[0] = CTL_HW;
 149 #if DETECT_OS_APPLE
 150    mib[1] = HW_MEMSIZE;
 151 #elif DETECT_OS_NETBSD || DETECT_OS_OPENBSD
 152    mib[1] = HW_PHYSMEM64;
 153 #elif DETECT_OS_FREEBSD
 154    mib[1] = HW_REALMEM;
 155 #elif DETECT_OS_DRAGONFLY
 156    mib[1] = HW_PHYSMEM;
 157 #else
 158 #error Unsupported *BSD
 159 #endif
 160
 161    return (sysctl(mib, 2, size, &len, NULL, 0) == 0);
 162 #elif DETECT_OS_HAIKU
 163    system_info info;
 164    status_t ret;
 165
 166    ret = get_system_info(&info);
 167    if (ret != B_OK || info.max_pages <= 0)
 168       return false;
 169
 170    *size = (uint64_t)info.max_pages * (uint64_t)B_PAGE_SIZE;
 171    return true;
 172 #elif DETECT_OS_WINDOWS
 173    MEMORYSTATUSEX status;
 174    BOOL ret;
 175
 176    status.dwLength = sizeof(status);
 177    ret = GlobalMemoryStatusEx(&status);
 178    *size = status.ullTotalPhys;
 179    return (ret == TRUE);
 180 #else
 181 #error unexpected platform in os_sysinfo.c
 182    return false;
 183 #endif
 184 }