Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 224 insertions, 0 deletions

diff --git a/include/rtl/bootstrap.h b/include/rtl/bootstrap.h
new file mode 100644
index 000000000..e532cd0e3
--- /dev/null
+++ b/include/rtl/bootstrap.h
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+/*
+ * This file is part of LibreOffice published API.
+ */
+#ifndef INCLUDED_RTL_BOOTSTRAP_H
+#define INCLUDED_RTL_BOOTSTRAP_H
+
+#include "sal/config.h"
+
+#include "rtl/ustring.h"
+#include "sal/saldllapi.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+   @file
+
+   The described concept provides a platform independent way to access
+   minimum bootstrap settings for every application by explicitly or
+   implicitly passing the values to the application.
+
+   <strong>MULTI-LEVEL STRATEGY FOR RETRIEVAL OF BOOTSTRAP VALUES:</strong>
+
+   The 1st level is tried first. On failure,
+   the next level is tried. Every query starts at the first level again, so
+   that one setting may be taken from the 3rd and one from the 1st level.
+
+   1st level: explicitly set variables via rtl_bootstrap_set()
+
+   2nd level: command line arguments. A `-env:SETTINGNAME=value` is given on
+   command line. This allows giving an application a certain setting, even
+   if an ini-file exists (especially useful for e.g. daemons that want to
+   start an executable with dynamical changing settings).
+
+   3rd level: environment variables. The application tries to get the
+   setting from the environment.
+
+   4th level: executable ini-file. Every application looks for an ini-file.
+   The filename defaults to `/absolute/path/to/executable[rc|.ini]`
+   without .bin or .exe suffix. The ini-filename can be
+   set by the special command line parameter
+   `-env:INIFILENAME=/absolute/path/to/inifile` at runtime or it may
+   be set at compile time by an API-call.
+
+   5th level: URE_BOOTSTRAP ini-file. If the bootstrap variable URE_BOOTSTRAP
+   expands to the URL of an ini-file, that ini-file is searched.
+
+   6th level: default. An application can have some default settings decided
+   at compile time, which allow the application to run even with no
+   deployment settings.
+
+   If neither of the above levels leads to a successful retrieval of the value
+   (no default possible), the application may fail to start.
+
+   <strong>NAMING CONVENTIONS</strong>
+
+   Naming conventions for names of bootstrap values:
+   Names may only include characters, that are allowed characters for
+   environment variables. This excludes '.', ' ', ';', ':' and any non-ascii
+   character. Names are case insensitive.
+
+   An ini-file is only allowed to have one section, which must be named
+   `[Bootstrap]` with the square brackets.
+   The section may be omitted.
+   The section name does not appear in the name of the corresponding
+   environment variable or commandline arg.
+   Values may be arbitrary unicode strings, they must be encoded in UTF8.
+
+   <em>Example:</em>
+
+   in an ini-file:
+   <code>
+   [Sectionname]
+   Name=value
+   </code>
+
+   as commandline arg:
+   <code>-env:Name=value</code>
+
+   as environment:
+   - <code>setenv Name value</code>
+   - <code>set Name=value</code>
+
+   <strong>SPECIAL VARIABLES:</strong>
+
+   - INIFILENAME<br>
+     This variable allows to set the inifilename. This makes only sense, if the filename
+     is different than the executable file name. It must be given on command line. If it is
+     given the executable ini-file is ignored.
+*/
+
+/** may be called by an application to set an ini-filename.
+
+    Must be called before rtl_bootstrap_get(). May not be called twice.
+    If it is never called, the filename is based on the name of the executable,
+    with the suffix ".ini" on Windows or "rc" on Unix.
+
+    @param pFileUri URL of the inifile with path but WITHOUT suffix (.ini or rc)
+*/
+SAL_DLLPUBLIC void SAL_CALL rtl_bootstrap_setIniFileName( rtl_uString *pFileUri );
+
+/**
+   @param pName
+           The name of the bootstrap setting to be retrieved.
+   @param[out] ppValue
+           Contains always a valid rtl_uString pointer.
+   @param pDefault
+           maybe <code>NULL</code>. If once the default is
+           returned, successive calls always return this
+           default value, even when called with different
+           defaults.
+
+   @retval sal_True when a value could be retrieved successfully.
+           When a <code>pDefault</code> value is given,
+           the function always returns <code>sal_True</code>.
+   @retval sal_False when none of the 4 methods gave a value.
+           <code>ppValue</code> then contains an empty string.
+*/
+SAL_DLLPUBLIC sal_Bool SAL_CALL rtl_bootstrap_get(
+        rtl_uString *pName, rtl_uString **ppValue, rtl_uString *pDefault );
+
+/** Sets a bootstrap parameter.
+
+   @param pName
+          name of bootstrap parameter
+   @param pValue
+          value of bootstrap parameter
+*/
+SAL_DLLPUBLIC void SAL_CALL rtl_bootstrap_set(
+        rtl_uString * pName, rtl_uString * pValue );
+
+
+typedef void * rtlBootstrapHandle;
+
+/**
+   Opens a bootstrap argument container.
+   @param[in] pIniName    The name of the ini-file to use, if <code>NULL</code> defaults
+                          to the executables name
+   @return                Handle for a bootstrap argument container
+*/
+SAL_DLLPUBLIC rtlBootstrapHandle SAL_CALL rtl_bootstrap_args_open(rtl_uString * pIniName);
+
+/**
+   Closes a bootstrap argument container.
+   @param[in] handle      The handle got by rtl_bootstrap_args_open()
+*/
+SAL_DLLPUBLIC void SAL_CALL rtl_bootstrap_args_close(rtlBootstrapHandle handle)
+    SAL_THROW_EXTERN_C();
+
+/**
+   @param[in]  handle       The handle got by rtl_bootstrap_args_open()
+   @param[in]  pName        The name of the variable to be retrieved
+   @param[out] ppValue      The result of the retrieval. *ppValue may be null in case of failure.
+   @param[in]  pDefault     The default value for the retrieval, may be <code>NULL</code>
+
+   @return                  The status of the retrieval, <code>sal_True</code> on success.
+*/
+SAL_DLLPUBLIC sal_Bool SAL_CALL rtl_bootstrap_get_from_handle(
+        rtlBootstrapHandle handle, rtl_uString *pName, rtl_uString **ppValue, rtl_uString *pDefault);
+
+
+/** Returns the name of the inifile associated with this handle.
+
+   @param[in]  handle       The handle got by rtl_bootstrap_args_open()
+   @param[out] ppIniName    contains after the call the name of the ini-filename.
+*/
+SAL_DLLPUBLIC void SAL_CALL rtl_bootstrap_get_iniName_from_handle(
+        rtlBootstrapHandle handle, rtl_uString ** ppIniName);
+
+/** Expands a macro using bootstrap variables.
+
+    @param[in]     handle   The handle got by rtl_bootstrap_args_open()
+    @param[in,out] macro    The macro to be expanded
+*/
+SAL_DLLPUBLIC void SAL_CALL rtl_bootstrap_expandMacros_from_handle(
+    rtlBootstrapHandle handle, rtl_uString ** macro );
+
+/** Expands a macro using default bootstrap variables.
+
+    @param[in,out] macro    The macro to be expanded
+*/
+SAL_DLLPUBLIC void SAL_CALL rtl_bootstrap_expandMacros(
+    rtl_uString ** macro);
+
+/** Escapes special characters ("$" and "\").
+
+    @param value
+    an arbitrary, non-NULL value
+
+    @param[out] encoded
+    the given value with all occurrences of special characters ("$" and "\") escaped
+
+    @since UDK 3.2.9
+*/
+SAL_DLLPUBLIC void SAL_CALL rtl_bootstrap_encode(
+    rtl_uString const * value, rtl_uString ** encoded );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */