src/gallium/auxiliary/os/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)
  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       /* one-time init */
  73       const char *filename = os_get_option("GALLIUM_LOG_FILE");
  74       if (filename)
  75          fout = fopen(filename, "w");
  76       if (!fout)
  77          fout = stderr;
  78    }
  79
  80 #if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
  81    OutputDebugStringA(message);
  82    if(GetConsoleWindow() && !IsDebuggerPresent()) {
  83       fflush(stdout);
  84       fputs(message, fout);
  85       fflush(fout);
  86    }
  87    else if (fout != stderr) {
  88       fputs(message, fout);
  89       fflush(fout);
  90    }
  91 #else /* !PIPE_SUBSYSTEM_WINDOWS */
  92    fflush(stdout);
  93    fputs(message, fout);
  94    fflush(fout);
  95 #endif
  96 }
  97
  98
  99 const char *
 100 os_get_option(const char *name)
 101 {
 102    return getenv(name);
 103 }
 104
 105
 106 /**
 107  * Return the size of the total physical memory.
 108  * \param size returns the size of the total physical memory
 109  * \return true for success, or false on failure
 110  */
 111 bool
 112 os_get_total_physical_memory(uint64_t *size)
 113 {
 114 #if defined(PIPE_OS_LINUX) || defined(PIPE_OS_CYGWIN)
 115    const long phys_pages = sysconf(_SC_PHYS_PAGES);
 116    const long page_size = sysconf(_SC_PAGE_SIZE);
 117
 118    *size = phys_pages * page_size;
 119    return (phys_pages > 0 && page_size > 0);
 120 #elif defined(PIPE_OS_APPLE) || defined(PIPE_OS_BSD)
 121    size_t len = sizeof(size);
 122    int mib[2];
 123
 124    mib[0] = CTL_HW;
 125 #if defined(PIPE_OS_APPLE)
 126    mib[1] = HW_MEMSIZE;
 127 #elif defined(PIPE_OS_NETBSD) || defined(PIPE_OS_OPENBSD)
 128    mib[1] = HW_PHYSMEM64;
 129 #elif defined(PIPE_OS_FREEBSD)
 130    mib[1] = HW_REALMEM;
 131 #else
 132 #error Unsupported *BSD
 133 #endif
 134
 135    return (sysctl(mib, 2, &size, &len, NULL, 0) == 0);
 136 #elif defined(PIPE_OS_HAIKU)
 137    system_info info;
 138    status_t ret;
 139
 140    ret = get_system_info(&info);
 141    *size = info.max_pages * B_PAGE_SIZE;
 142    return (ret == B_OK);
 143 #elif defined(PIPE_OS_WINDOWS)
 144    MEMORYSTATUSEX status;
 145    BOOL ret;
 146
 147    status.dwLength = sizeof(status);
 148    ret = GlobalMemoryStatusEx(&status);
 149    *size = status.ullTotalPhys;
 150    return (ret == TRUE);
 151 #else
 152 #error unexpected platform in os_sysinfo.c
 153    return false;
 154 #endif
 155 }