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static-init-safe filename initializers
This commit is contained in:
David Rose
parent
f44857f8ee
commit
4dc60ab611
@ -17,6 +17,7 @@
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#include "dSearchPath.h"
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#include "executionEnvironment.h"
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#include "vector_string.h"
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#include "atomicAdjust.h"
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#include <stdio.h> // For rename() and tempnam()
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#include <time.h> // for clock() and time()
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@ -48,16 +49,11 @@
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#include <unistd.h>
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#endif
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bool Filename::_got_home_directory;
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Filename Filename::_home_directory;
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bool Filename::_got_temp_directory;
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Filename Filename::_temp_directory;
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bool Filename::_got_app_directory;
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Filename Filename::_app_directory;
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bool Filename::_got_user_appdata_directory;
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Filename Filename::_user_appdata_directory;
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bool Filename::_got_common_appdata_directory;
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Filename Filename::_common_appdata_directory;
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Filename *Filename::_home_directory;
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Filename *Filename::_temp_directory;
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Filename *Filename::_app_directory;
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Filename *Filename::_user_appdata_directory;
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Filename *Filename::_common_appdata_directory;
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TypeHandle Filename::_type_handle;
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#ifdef WIN32
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@ -454,51 +450,57 @@ temporary(const string &dirname, const string &prefix, const string &suffix,
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////////////////////////////////////////////////////////////////////
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const Filename &Filename::
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get_home_directory() {
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if (!_got_home_directory) {
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if (AtomicAdjust::get_ptr(_home_directory) == NULL) {
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Filename home_directory;
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// In all environments, check $HOME first.
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char *home = getenv("HOME");
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if (home != (char *)NULL) {
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_home_directory = from_os_specific(home);
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if (_home_directory.is_directory()) {
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if (_home_directory.make_canonical()) {
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_got_home_directory = true;
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Filename dirname = from_os_specific(home);
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if (dirname.is_directory()) {
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if (dirname.make_canonical()) {
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home_directory = dirname;
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}
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}
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}
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if (_got_home_directory) {
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return _home_directory;
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}
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if (home_directory.empty()) {
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#ifdef WIN32
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char buffer[MAX_PATH];
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char buffer[MAX_PATH];
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// On Windows, fall back to the "My Documents" folder.
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if (SHGetSpecialFolderPath(NULL, buffer, CSIDL_PERSONAL, true)) {
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_user_appdata_directory = from_os_specific(buffer);
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if (_user_appdata_directory.is_directory()) {
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if (_user_appdata_directory.make_canonical()) {
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_got_user_appdata_directory = true;
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// On Windows, fall back to the "My Documents" folder.
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if (SHGetSpecialFolderPath(NULL, buffer, CSIDL_PERSONAL, true)) {
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Filename dirname = from_os_specific(buffer);
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if (dirname.is_directory()) {
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if (dirname.make_canonical()) {
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home_directory = dirname;
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}
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}
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}
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}
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#elif defined(IS_OSX)
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_home_directory = get_osx_home_directory();
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_got_home_directory = true;
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home_directory = get_osx_home_directory();
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#else
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// Posix case: check /etc/passwd?
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// Posix case: check /etc/passwd?
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#endif // WIN32
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}
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if (!_got_home_directory) {
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if (home_directory.empty()) {
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// Fallback case.
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_home_directory = ExecutionEnvironment::get_cwd();
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_got_home_directory = true;
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home_directory = ExecutionEnvironment::get_cwd();
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}
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Filename *newdir = new Filename(home_directory);
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if (AtomicAdjust::compare_and_exchange_ptr((void * TVOLATILE &)_home_directory, NULL, newdir) != NULL) {
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// Didn't store it. Must have been stored by someone else.
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assert(_home_directory != NULL);
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delete newdir;
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}
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}
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return _home_directory;
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return (*_home_directory);
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}
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////////////////////////////////////////////////////////////////////
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@ -509,37 +511,43 @@ get_home_directory() {
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////////////////////////////////////////////////////////////////////
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const Filename &Filename::
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get_temp_directory() {
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if (!_got_temp_directory) {
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if (AtomicAdjust::get_ptr(_temp_directory) == NULL) {
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Filename temp_directory;
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#ifdef WIN32
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static const size_t buffer_size = 4096;
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char buffer[buffer_size];
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if (GetTempPath(buffer_size, buffer) != 0) {
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_temp_directory = from_os_specific(buffer);
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if (_temp_directory.is_directory()) {
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if (_temp_directory.make_canonical()) {
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_got_temp_directory = true;
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Filename dirname = from_os_specific(buffer);
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if (dirname.is_directory()) {
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if (dirname.make_canonical()) {
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temp_directory = dirname;
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}
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}
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}
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#elif defined(IS_OSX)
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_temp_directory = get_osx_temp_directory();
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_got_temp_directory = true;
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temp_directory = get_osx_temp_directory();
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#else
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// Posix case.
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_temp_directory = "/tmp";
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_got_temp_directory = true;
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temp_directory = "/tmp";
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#endif // WIN32
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if (!_got_temp_directory) {
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if (temp_directory.empty()) {
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// Fallback case.
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_temp_directory = ExecutionEnvironment::get_cwd();
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_got_temp_directory = true;
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temp_directory = ExecutionEnvironment::get_cwd();
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}
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Filename *newdir = new Filename(temp_directory);
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if (AtomicAdjust::compare_and_exchange_ptr((void * TVOLATILE &)_temp_directory, NULL, newdir) != NULL) {
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// Didn't store it. Must have been stored by someone else.
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assert(_temp_directory != NULL);
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delete newdir;
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}
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}
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return _temp_directory;
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return (*_temp_directory);
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}
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////////////////////////////////////////////////////////////////////
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@ -550,37 +558,42 @@ get_temp_directory() {
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////////////////////////////////////////////////////////////////////
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const Filename &Filename::
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get_app_directory() {
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if (!_got_app_directory) {
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if (AtomicAdjust::get_ptr(_app_directory) == NULL) {
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Filename app_directory;
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#if defined(IS_OSX)
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_app_directory = get_osx_app_directory();
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_got_app_directory = !_app_directory.empty();
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app_directory = get_osx_app_directory();
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#endif // WIN32
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if (!_got_app_directory) {
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if (app_directory.empty()) {
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// Fallback case.
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Filename binary_name = ExecutionEnvironment::get_binary_name();
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if (!binary_name.empty()) {
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_app_directory = binary_name.get_dirname();
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_got_app_directory = !_app_directory.empty();
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app_directory = binary_name.get_dirname();
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}
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}
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if (!_got_app_directory) {
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if (app_directory.empty()) {
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// Another fallback.
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Filename dtool_name = ExecutionEnvironment::get_dtool_name();
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if (!dtool_name.empty()) {
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_app_directory = dtool_name.get_dirname();
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_got_app_directory = !_app_directory.empty();
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app_directory = dtool_name.get_dirname();
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}
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}
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if (!_got_app_directory) {
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if (app_directory.empty()) {
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// The final fallback.
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_app_directory = ExecutionEnvironment::get_cwd();
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_got_app_directory = true;
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app_directory = ExecutionEnvironment::get_cwd();
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}
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Filename *newdir = new Filename(app_directory);
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if (AtomicAdjust::compare_and_exchange_ptr((void * TVOLATILE &)_app_directory, NULL, newdir) != NULL) {
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// Didn't store it. Must have been stored by someone else.
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assert(_app_directory != NULL);
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delete newdir;
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}
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}
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return _app_directory;
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return (*_app_directory);
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}
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////////////////////////////////////////////////////////////////////
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@ -593,38 +606,44 @@ get_app_directory() {
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////////////////////////////////////////////////////////////////////
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const Filename &Filename::
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get_user_appdata_directory() {
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if (!_got_user_appdata_directory) {
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if (AtomicAdjust::get_ptr(_user_appdata_directory) == NULL) {
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Filename user_appdata_directory;
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#ifdef WIN32
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char buffer[MAX_PATH];
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if (SHGetSpecialFolderPath(NULL, buffer, CSIDL_APPDATA, true)) {
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_user_appdata_directory = from_os_specific(buffer);
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if (_user_appdata_directory.is_directory()) {
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if (_user_appdata_directory.make_canonical()) {
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_got_user_appdata_directory = true;
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Filename dirname = from_os_specific(buffer);
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if (dirname.is_directory()) {
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if (dirname.make_canonical()) {
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user_appdata_directory = dirname;
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}
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}
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}
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#elif defined(IS_OSX)
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_user_appdata_directory = get_osx_user_appdata_directory();
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_got_user_appdata_directory = true;
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user_appdata_directory = get_osx_user_appdata_directory();
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#else
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// Posix case.
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_user_appdata_directory = get_home_directory();
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_got_user_appdata_directory = true;
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user_appdata_directory = get_home_directory();
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#endif // WIN32
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if (!_got_user_appdata_directory) {
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if (user_appdata_directory.empty()) {
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// Fallback case.
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_user_appdata_directory = ExecutionEnvironment::get_cwd();
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_got_user_appdata_directory = true;
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user_appdata_directory = ExecutionEnvironment::get_cwd();
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}
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Filename *newdir = new Filename(user_appdata_directory);
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if (AtomicAdjust::compare_and_exchange_ptr((void * TVOLATILE &)_user_appdata_directory, NULL, newdir) != NULL) {
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// Didn't store it. Must have been stored by someone else.
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assert(_user_appdata_directory != NULL);
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delete newdir;
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}
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}
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return _user_appdata_directory;
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return (*_user_appdata_directory);
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}
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////////////////////////////////////////////////////////////////////
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@ -636,37 +655,43 @@ get_user_appdata_directory() {
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////////////////////////////////////////////////////////////////////
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const Filename &Filename::
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get_common_appdata_directory() {
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if (!_got_common_appdata_directory) {
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if (AtomicAdjust::get_ptr(_common_appdata_directory) == NULL) {
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Filename common_appdata_directory;
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#ifdef WIN32
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char buffer[MAX_PATH];
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if (SHGetSpecialFolderPath(NULL, buffer, CSIDL_COMMON_APPDATA, true)) {
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_common_appdata_directory = from_os_specific(buffer);
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if (_common_appdata_directory.is_directory()) {
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if (_common_appdata_directory.make_canonical()) {
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_got_common_appdata_directory = true;
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Filename dirname = from_os_specific(buffer);
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if (dirname.is_directory()) {
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if (dirname.make_canonical()) {
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common_appdata_directory = dirname;
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}
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}
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}
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#elif defined(IS_OSX)
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_common_appdata_directory = get_osx_common_appdata_directory();
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_got_common_appdata_directory = true;
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common_appdata_directory = get_osx_common_appdata_directory();
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#else
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// Posix case.
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_common_appdata_directory = "/var";
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_got_common_appdata_directory = true;
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common_appdata_directory = "/var";
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#endif // WIN32
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if (!_got_common_appdata_directory) {
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if (common_appdata_directory.empty()) {
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// Fallback case.
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_common_appdata_directory = ExecutionEnvironment::get_cwd();
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_got_common_appdata_directory = true;
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common_appdata_directory = ExecutionEnvironment::get_cwd();
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}
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Filename *newdir = new Filename(common_appdata_directory);
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if (AtomicAdjust::compare_and_exchange_ptr((void * TVOLATILE &)_common_appdata_directory, NULL, newdir) != NULL) {
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// Didn't store it. Must have been stored by someone else.
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assert(_common_appdata_directory != NULL);
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delete newdir;
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}
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}
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return _common_appdata_directory;
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return (*_common_appdata_directory);
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}
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////////////////////////////////////////////////////////////////////
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@ -232,16 +232,11 @@ protected:
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int _flags;
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static bool _got_home_directory;
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static Filename _home_directory;
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static bool _got_temp_directory;
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static Filename _temp_directory;
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static bool _got_app_directory;
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static Filename _app_directory;
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static bool _got_user_appdata_directory;
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static Filename _user_appdata_directory;
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static bool _got_common_appdata_directory;
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static Filename _common_appdata_directory;
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static Filename *_home_directory;
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static Filename *_temp_directory;
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static Filename *_app_directory;
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static Filename *_user_appdata_directory;
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static Filename *_common_appdata_directory;
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public:
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static TypeHandle get_class_type() {
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