362 lines
8.9 KiB
C
362 lines
8.9 KiB
C
/**************************************************************************
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*
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* Copyright 2008-2010 VMware, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#include "os_misc.h"
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#include "os_file.h"
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#include "macros.h"
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#include <stdarg.h>
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#if DETECT_OS_WINDOWS
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#ifndef WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers
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#endif
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#include <windows.h>
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#include <stdio.h>
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#include <stdlib.h>
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#else
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <inttypes.h>
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#endif
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#if DETECT_OS_ANDROID
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# define LOG_TAG "MESA"
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# include <unistd.h>
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# include <log/log.h>
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# include <cutils/properties.h>
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#elif DETECT_OS_LINUX || DETECT_OS_CYGWIN || DETECT_OS_SOLARIS || DETECT_OS_HURD
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# include <unistd.h>
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#elif DETECT_OS_OPENBSD || DETECT_OS_FREEBSD
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# include <sys/resource.h>
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# include <sys/sysctl.h>
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#elif DETECT_OS_APPLE || DETECT_OS_BSD
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# include <sys/sysctl.h>
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#elif DETECT_OS_HAIKU
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# include <kernel/OS.h>
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#elif DETECT_OS_WINDOWS
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# include <windows.h>
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#else
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#error unexpected platform in os_sysinfo.c
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#endif
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void
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os_log_message(const char *message)
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{
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/* If the GALLIUM_LOG_FILE environment variable is set to a valid filename,
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* write all messages to that file.
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*/
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static FILE *fout = NULL;
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if (!fout) {
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#ifdef DEBUG
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/* one-time init */
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const char *filename = os_get_option("GALLIUM_LOG_FILE");
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if (filename) {
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const char *mode = "w";
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if (filename[0] == '+') {
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/* If the filename is prefixed with '+' then open the file for
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* appending instead of normal writing.
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*/
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mode = "a";
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filename++; /* skip the '+' */
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}
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fout = fopen(filename, mode);
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}
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#endif
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if (!fout)
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fout = stderr;
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}
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#if DETECT_OS_WINDOWS
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OutputDebugStringA(message);
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if(GetConsoleWindow() && !IsDebuggerPresent()) {
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fflush(stdout);
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fputs(message, fout);
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fflush(fout);
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}
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else if (fout != stderr) {
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fputs(message, fout);
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fflush(fout);
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}
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#else /* !DETECT_OS_WINDOWS */
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fflush(stdout);
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fputs(message, fout);
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fflush(fout);
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# if DETECT_OS_ANDROID
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LOG_PRI(ANDROID_LOG_ERROR, LOG_TAG, "%s", message);
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# endif
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#endif
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}
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#if DETECT_OS_ANDROID
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# include <ctype.h>
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# include "hash_table.h"
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# include "ralloc.h"
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# include "simple_mtx.h"
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static struct hash_table *options_tbl;
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static void
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options_tbl_fini(void)
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{
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_mesa_hash_table_destroy(options_tbl, NULL);
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}
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/**
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* Get an option value from android's property system, as a fallback to
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* getenv() (which is generally less useful on android due to processes
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* typically being forked from the zygote.
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*
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* The option name used for getenv is translated into a property name
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* by:
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*
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* 1) convert to lowercase
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* 2) replace '_' with '.'
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* 3) if necessary, prepend "mesa."
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*
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* For example:
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* - MESA_EXTENSION_OVERRIDE -> mesa.extension.override
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* - GALLIUM_HUD -> mesa.gallium.hud
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*
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* Note that we use a hashtable for two purposes:
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* 1) Avoid re-translating the option name on subsequent lookups
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* 2) Avoid leaking memory. Because property_get() returns the
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* property value into a user allocated buffer, we cannot return
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* that directly to the caller, so we need to strdup(). With the
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* hashtable, subsquent lookups can return the existing string.
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*/
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static const char *
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os_get_android_option(const char *name)
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{
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if (!options_tbl) {
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options_tbl = _mesa_hash_table_create(NULL, _mesa_hash_string,
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_mesa_key_string_equal);
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atexit(options_tbl_fini);
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}
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struct hash_entry *entry = _mesa_hash_table_search(options_tbl, name);
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if (entry) {
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return entry->data;
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}
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char value[PROPERTY_VALUE_MAX];
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char key[PROPERTY_KEY_MAX];
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char *p = key, *end = key + PROPERTY_KEY_MAX;
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/* add "mesa." prefix if necessary: */
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if (strstr(name, "MESA_") != name)
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p += strlcpy(p, "mesa.", end - p);
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p += strlcpy(p, name, end - p);
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for (int i = 0; key[i]; i++) {
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if (key[i] == '_') {
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key[i] = '.';
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} else {
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key[i] = tolower(key[i]);
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}
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}
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const char *opt = NULL;
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int len = property_get(key, value, NULL);
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if (len > 1) {
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opt = ralloc_strdup(options_tbl, value);
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}
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_mesa_hash_table_insert(options_tbl, name, (void *)opt);
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return opt;
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}
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#endif
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#if !defined(EMBEDDED_DEVICE)
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const char *
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os_get_option(const char *name)
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{
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const char *opt = getenv(name);
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#if DETECT_OS_ANDROID
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if (!opt) {
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opt = os_get_android_option(name);
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}
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#endif
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return opt;
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}
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#endif /* !EMBEDDED_DEVICE */
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/**
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* Return the size of the total physical memory.
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* \param size returns the size of the total physical memory
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* \return true for success, or false on failure
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*/
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bool
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os_get_total_physical_memory(uint64_t *size)
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{
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#if DETECT_OS_LINUX || DETECT_OS_CYGWIN || DETECT_OS_SOLARIS || DETECT_OS_HURD
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const long phys_pages = sysconf(_SC_PHYS_PAGES);
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const long page_size = sysconf(_SC_PAGE_SIZE);
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if (phys_pages <= 0 || page_size <= 0)
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return false;
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*size = (uint64_t)phys_pages * (uint64_t)page_size;
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return true;
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#elif DETECT_OS_APPLE || DETECT_OS_BSD
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size_t len = sizeof(*size);
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int mib[2];
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mib[0] = CTL_HW;
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#if DETECT_OS_APPLE
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mib[1] = HW_MEMSIZE;
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#elif DETECT_OS_NETBSD || DETECT_OS_OPENBSD
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mib[1] = HW_PHYSMEM64;
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#elif DETECT_OS_FREEBSD
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mib[1] = HW_REALMEM;
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#elif DETECT_OS_DRAGONFLY
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mib[1] = HW_PHYSMEM;
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#else
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#error Unsupported *BSD
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#endif
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return (sysctl(mib, 2, size, &len, NULL, 0) == 0);
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#elif DETECT_OS_HAIKU
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system_info info;
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status_t ret;
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ret = get_system_info(&info);
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if (ret != B_OK || info.max_pages <= 0)
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return false;
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*size = (uint64_t)info.max_pages * (uint64_t)B_PAGE_SIZE;
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return true;
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#elif DETECT_OS_WINDOWS
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MEMORYSTATUSEX status;
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BOOL ret;
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status.dwLength = sizeof(status);
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ret = GlobalMemoryStatusEx(&status);
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*size = status.ullTotalPhys;
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return (ret == TRUE);
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#else
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#error unexpected platform in os_sysinfo.c
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return false;
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#endif
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}
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bool
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os_get_available_system_memory(uint64_t *size)
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{
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#if DETECT_OS_LINUX
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char *meminfo = os_read_file("/proc/meminfo", NULL);
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if (!meminfo)
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return false;
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char *str = strstr(meminfo, "MemAvailable:");
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if (!str) {
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free(meminfo);
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return false;
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}
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uint64_t kb_mem_available;
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if (sscanf(str, "MemAvailable: %" PRIu64, &kb_mem_available) == 1) {
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free(meminfo);
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*size = kb_mem_available << 10;
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return true;
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}
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free(meminfo);
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return false;
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#elif DETECT_OS_OPENBSD || DETECT_OS_FREEBSD
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struct rlimit rl;
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#if DETECT_OS_OPENBSD
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int mib[] = { CTL_HW, HW_USERMEM64 };
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#elif DETECT_OS_FREEBSD
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int mib[] = { CTL_HW, HW_USERMEM };
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#endif
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int64_t mem_available;
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size_t len = sizeof(mem_available);
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/* physmem - wired */
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if (sysctl(mib, 2, &mem_available, &len, NULL, 0) == -1)
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return false;
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/* static login.conf limit */
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if (getrlimit(RLIMIT_DATA, &rl) == -1)
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return false;
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*size = MIN2(mem_available, rl.rlim_cur);
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return true;
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#else
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return false;
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#endif
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}
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/**
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* Return the size of a page
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* \param size returns the size of a page
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* \return true for success, or false on failure
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*/
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bool
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os_get_page_size(uint64_t *size)
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{
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#if DETECT_OS_UNIX && !DETECT_OS_APPLE && !DETECT_OS_HAIKU
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const long page_size = sysconf(_SC_PAGE_SIZE);
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if (page_size <= 0)
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return false;
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*size = (uint64_t)page_size;
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return true;
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#elif DETECT_OS_HAIKU
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*size = (uint64_t)B_PAGE_SIZE;
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return true;
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#elif DETECT_OS_WINDOWS
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SYSTEM_INFO SysInfo;
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GetSystemInfo(&SysInfo);
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*size = SysInfo.dwPageSize;
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return true;
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#elif DETECT_OS_APPLE
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size_t len = sizeof(*size);
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int mib[2];
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mib[0] = CTL_HW;
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mib[1] = HW_PAGESIZE;
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return (sysctl(mib, 2, size, &len, NULL, 0) == 0);
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#else
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#error unexpected platform in os_sysinfo.c
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return false;
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#endif
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}
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