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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  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  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 defined(PIPE_SUBSYSTEM_WINDOWS_USER)
  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
  42 #else
  43
  44 #include <stdio.h>
  45 #include <stdlib.h>
  46
  47 #endif
  48
  49
  50 #if defined(PIPE_OS_LINUX) || defined(PIPE_OS_CYGWIN) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_HURD)
  51 #  include <unistd.h>
  52 #elif defined(PIPE_OS_APPLE) || defined(PIPE_OS_BSD)
  53 #  include <sys/sysctl.h>
  54 #elif defined(PIPE_OS_HAIKU)
  55 #  include <kernel/OS.h>
  56 #elif defined(PIPE_OS_WINDOWS)
  57 #  include <windows.h>
  58 #else
  59 #error unexpected platform in os_sysinfo.c
  60 #endif
  61
  62
  63 void
  64 os_log_message(const char *message)
  65 {
  66    /* If the GALLIUM_LOG_FILE environment variable is set to a valid filename,
  67     * write all messages to that file.
  68     */
  69    static FILE *fout = NULL;
  70
  71    if (!fout) {
  72 #ifdef DEBUG
  73       /* one-time init */
  74       const char *filename = os_get_option("GALLIUM_LOG_FILE");
  75       if (filename) {
  76          const char *mode = "w";
  77          if (filename[0] == '+') {
  78             /* If the filename is prefixed with '+' then open the file for
  79              * appending instead of normal writing.
  80              */
  81             mode = "a";
  82             filename++; /* skip the '+' */
  83          }
  84          fout = fopen(filename, mode);
  85       }
  86 #endif
  87       if (!fout)
  88          fout = stderr;
  89    }
  90
  91 #if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
  92    OutputDebugStringA(message);
  93    if(GetConsoleWindow() && !IsDebuggerPresent()) {
  94       fflush(stdout);
  95       fputs(message, fout);
  96       fflush(fout);
  97    }
  98    else if (fout != stderr) {
  99       fputs(message, fout);
 100       fflush(fout);
 101    }
 102 #else /* !PIPE_SUBSYSTEM_WINDOWS_USER */
 103    fflush(stdout);
 104    fputs(message, fout);
 105    fflush(fout);
 106 #endif
 107 }
 108
 109
 110 #if !defined(EMBEDDED_DEVICE)
 111 const char *
 112 os_get_option(const char *name)
 113 {
 114    return getenv(name);
 115 }
 116 #endif /* !EMBEDDED_DEVICE */
 117
 118
 119 /**
 120  * Return the size of the total physical memory.
 121  * \param size returns the size of the total physical memory
 122  * \return true for success, or false on failure
 123  */
 124 bool
 125 os_get_total_physical_memory(uint64_t *size)
 126 {
 127 #if defined(PIPE_OS_LINUX) || defined(PIPE_OS_CYGWIN) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_HURD)
 128    const long phys_pages = sysconf(_SC_PHYS_PAGES);
 129    const long page_size = sysconf(_SC_PAGE_SIZE);
 130
 131    if (phys_pages <= 0 || page_size <= 0)
 132       return false;
 133
 134    *size = (uint64_t)phys_pages * (uint64_t)page_size;
 135    return true;
 136 #elif defined(PIPE_OS_APPLE) || defined(PIPE_OS_BSD)
 137    size_t len = sizeof(*size);
 138    int mib[2];
 139
 140    mib[0] = CTL_HW;
 141 #if defined(PIPE_OS_APPLE)
 142    mib[1] = HW_MEMSIZE;
 143 #elif defined(PIPE_OS_NETBSD) || defined(PIPE_OS_OPENBSD)
 144    mib[1] = HW_PHYSMEM64;
 145 #elif defined(PIPE_OS_FREEBSD)
 146    mib[1] = HW_REALMEM;
 147 #elif defined(PIPE_OS_DRAGONFLY)
 148    mib[1] = HW_PHYSMEM;
 149 #else
 150 #error Unsupported *BSD
 151 #endif
 152
 153    return (sysctl(mib, 2, size, &len, NULL, 0) == 0);
 154 #elif defined(PIPE_OS_HAIKU)
 155    system_info info;
 156    status_t ret;
 157
 158    ret = get_system_info(&info);
 159    if (ret != B_OK || info.max_pages <= 0)
 160       return false;
 161
 162    *size = (uint64_t)info.max_pages * (uint64_t)B_PAGE_SIZE;
 163    return true;
 164 #elif defined(PIPE_OS_WINDOWS)
 165    MEMORYSTATUSEX status;
 166    BOOL ret;
 167
 168    status.dwLength = sizeof(status);
 169    ret = GlobalMemoryStatusEx(&status);
 170    *size = status.ullTotalPhys;
 171    return (ret == TRUE);
 172 #else
 173 #error unexpected platform in os_sysinfo.c
 174    return false;
 175 #endif
 176 }