xref: /trunk/main/sal/osl/os2/process_impl.cxx (revision dcc6e752a611e29721c4f9e49fa17effd93a4090)

/**************************************************************
 *
 * 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
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/




#define INCL_DOS
#include <os2.h>

#include "osl/process.h"
#include <osl/mutex.h>

#ifndef INCLUDED_LIMITS_H
#include <limits.h>
#define INCLUDED_LIMITS_H
#endif

#ifndef INCLUDED_PTHREAD_H
#include <pthread.h>
#define INCLUDED_PTHREAD_H
#endif

#ifndef INCLUDED_STDLIB_H
#include <stdlib.h>
#define INCLUDED_STDLIB_H
#endif

#ifndef INCLUDED_STRING_H
#include <string.h>
#define INCLUDED_STRING_H
#endif
#include "osl/diagnose.h"
#include <osl/file.h>
#include "osl/module.h"
#include "osl/thread.h"
#include "rtl/ustring.hxx"

#ifndef _OSL_FILE_PATH_HELPER_H_
#include "file_path_helper.h"
#endif

#ifndef _OSL_UUNXAPI_H_
#include "uunxapi.h"
#endif

/***************************************
  osl_bootstrap_getExecutableFile_Impl().

  @internal
  @see rtl_bootstrap
  @see #i37371#

 **************************************/

extern "C" oslProcessError SAL_CALL osl_bootstrap_getExecutableFile_Impl (
    rtl_uString ** ppFileURL
) SAL_THROW_EXTERN_C();


oslProcessError SAL_CALL osl_bootstrap_getExecutableFile_Impl (
    rtl_uString ** ppFileURL
) SAL_THROW_EXTERN_C()
{
    oslProcessError result = osl_Process_E_NotFound;
    CHAR    szName[CCHMAXPATH];
    PPIB    ppib;
    PTIB    ptib;
    APIRET  rc;

    rc = DosGetInfoBlocks(&ptib, &ppib);
    rc = DosQueryModuleName(ppib->pib_hmte, sizeof(szName), szName);

    if (rc == 0)
    {
        rtl_uString * pAbsPath = 0;

        rtl_string2UString(
            &pAbsPath,
            szName, strlen(szName), osl_getThreadTextEncoding(),
            OSTRING_TO_OUSTRING_CVTFLAGS);

        if (pAbsPath)
        {
            /* Convert from path to url. */
            if (osl_getFileURLFromSystemPath (pAbsPath, ppFileURL) == osl_File_E_None)
            {
                /* Success. */
                result = osl_Process_E_None;
            }
            rtl_uString_release (pAbsPath);
        }
    }

    return (result);
}

/***************************************
 CommandArgs_Impl.
 **************************************/
struct CommandArgs_Impl
{
    oslMutex        m_mutex;
    sal_uInt32      m_nCount;
    rtl_uString **  m_ppArgs;
};

static struct CommandArgs_Impl g_command_args =
{
    osl_createMutex(),
    0,
    0
};

/***************************************
  osl_getExecutableFile().
 **************************************/
oslProcessError SAL_CALL osl_getExecutableFile (rtl_uString ** ppustrFile)
{
    oslProcessError result = osl_Process_E_NotFound;

    osl_acquireMutex(g_command_args.m_mutex);
    OSL_ASSERT(g_command_args.m_nCount > 0);
    if (g_command_args.m_nCount > 0)
    {
        /* CommandArgs set. Obtain argv[0]. */
        rtl_uString_assign (ppustrFile, g_command_args.m_ppArgs[0]);
        result = osl_Process_E_None;
    }
    osl_releaseMutex(g_command_args.m_mutex);

    return (result);
}

/***************************************
 osl_getCommandArgCount().
 **************************************/
sal_uInt32 SAL_CALL osl_getCommandArgCount (void)
{
    sal_uInt32 result = 0;

    osl_acquireMutex(g_command_args.m_mutex);
    OSL_ASSERT(g_command_args.m_nCount > 0);
    if (g_command_args.m_nCount > 0)
        result = g_command_args.m_nCount - 1;
    osl_releaseMutex(g_command_args.m_mutex);

    return (result);
}

/***************************************
 osl_getCommandArg().
 **************************************/
oslProcessError SAL_CALL osl_getCommandArg (sal_uInt32 nArg, rtl_uString ** strCommandArg)
{
    oslProcessError result = osl_Process_E_NotFound;

    osl_acquireMutex(g_command_args.m_mutex);
    OSL_ASSERT(g_command_args.m_nCount > 0);
    if (g_command_args.m_nCount > (nArg + 1))
    {
        rtl_uString_assign (strCommandArg, g_command_args.m_ppArgs[nArg + 1]);
        result = osl_Process_E_None;
    }
    osl_releaseMutex(g_command_args.m_mutex);

    return (result);
}

/***************************************
 osl_setCommandArgs().
 **************************************/
void SAL_CALL osl_setCommandArgs (int argc, char ** argv)
{
    OSL_ASSERT(argc > 0);
    osl_acquireMutex(g_command_args.m_mutex);
    OSL_ENSURE (g_command_args.m_nCount == 0, "osl_setCommandArgs(): CommandArgs already set.");
    if (g_command_args.m_nCount == 0)
    {
        rtl_uString** ppArgs = (rtl_uString**)rtl_allocateZeroMemory (argc * sizeof(rtl_uString*));
        if (ppArgs != 0)
        {
            rtl_TextEncoding encoding = osl_getThreadTextEncoding();
            for (int i = 0; i < argc; i++)
            {
                rtl_string2UString (
                    &(ppArgs[i]),
                    argv[i], rtl_str_getLength (argv[i]), encoding,
                    OSTRING_TO_OUSTRING_CVTFLAGS);
            }
            if (ppArgs[0] != 0)
            {
                /* see @ osl_getExecutableFile(). */
                if (rtl_ustr_indexOfChar (rtl_uString_getStr(ppArgs[0]), sal_Unicode('/')) == -1)
                {
                    const rtl::OUString PATH (RTL_CONSTASCII_USTRINGPARAM("PATH"));

                    rtl_uString * pSearchPath = 0;
                    osl_getEnvironment (PATH.pData, &pSearchPath);
                    if (pSearchPath)
                    {
                        rtl_uString * pSearchResult = 0;
                        osl_searchPath (ppArgs[0], pSearchPath, &pSearchResult);
                        if (pSearchResult)
                        {
                            rtl_uString_assign (&(ppArgs[0]), pSearchResult);
                            rtl_uString_release (pSearchResult);
                        }
                        rtl_uString_release (pSearchPath);
                    }
                }

                rtl_uString * pArg0 = 0;
                if (realpath_u (ppArgs[0], &pArg0))
                {
                    osl_getFileURLFromSystemPath (pArg0, &(ppArgs[0]));
                    rtl_uString_release (pArg0);
                }
            }
            g_command_args.m_nCount = argc;
            g_command_args.m_ppArgs = ppArgs;
        }
    }
    osl_releaseMutex(g_command_args.m_mutex);

}

/***************************************
 osl_getEnvironment().
 **************************************/
oslProcessError SAL_CALL osl_getEnvironment(rtl_uString* pustrEnvVar, rtl_uString** ppustrValue)
{
    oslProcessError  result   = osl_Process_E_NotFound;
    rtl_TextEncoding encoding = osl_getThreadTextEncoding();
    rtl_String* pstr_env_var  = 0;

    OSL_PRECOND(pustrEnvVar, "osl_getEnvironment(): Invalid parameter");
    OSL_PRECOND(ppustrValue, "osl_getEnvironment(): Invalid parameter");

    rtl_uString2String(
        &pstr_env_var,
        rtl_uString_getStr(pustrEnvVar), rtl_uString_getLength(pustrEnvVar), encoding,
        OUSTRING_TO_OSTRING_CVTFLAGS);
    if (pstr_env_var != 0)
    {
        const char* p_env_var = getenv (rtl_string_getStr (pstr_env_var));
        if (p_env_var != 0)
        {
            rtl_string2UString(
                ppustrValue,
                p_env_var, strlen(p_env_var), encoding,
                OSTRING_TO_OUSTRING_CVTFLAGS);
            OSL_ASSERT(*ppustrValue != NULL);

            result = osl_Process_E_None;
        }
        rtl_string_release(pstr_env_var);
    }

    return (result);
}

/***************************************
 osl_setEnvironment().
 **************************************/
oslProcessError SAL_CALL osl_setEnvironment(rtl_uString* pustrEnvVar, rtl_uString* pustrValue)
{
    oslProcessError  result   = osl_Process_E_Unknown;
    rtl_TextEncoding encoding = osl_getThreadTextEncoding();
    rtl_String* pstr_env_var  = 0;
    rtl_String* pstr_val  = 0;

    OSL_PRECOND(pustrEnvVar, "osl_setEnvironment(): Invalid parameter");
    OSL_PRECOND(pustrValue, "osl_setEnvironment(): Invalid parameter");

    rtl_uString2String(
        &pstr_env_var,
        rtl_uString_getStr(pustrEnvVar), rtl_uString_getLength(pustrEnvVar), encoding,
        OUSTRING_TO_OSTRING_CVTFLAGS);

    rtl_uString2String(
        &pstr_val,
        rtl_uString_getStr(pustrValue), rtl_uString_getLength(pustrValue), encoding,
        OUSTRING_TO_OSTRING_CVTFLAGS);

    if (pstr_env_var != 0 && pstr_val != 0)
    {
        if (setenv(rtl_string_getStr(pstr_env_var), rtl_string_getStr(pstr_val), 1) == 0)
            result = osl_Process_E_None;
    }

    if (pstr_val)
        rtl_string_release(pstr_val);

    if (pstr_env_var != 0)
        rtl_string_release(pstr_env_var);

    return (result);
}

/***************************************
 osl_clearEnvironment().
 **************************************/
oslProcessError SAL_CALL osl_clearEnvironment(rtl_uString* pustrEnvVar)
{
    oslProcessError  result   = osl_Process_E_Unknown;
    rtl_TextEncoding encoding = osl_getThreadTextEncoding();
    rtl_String* pstr_env_var  = 0;

    OSL_PRECOND(pustrEnvVar, "osl_setEnvironment(): Invalid parameter");

    rtl_uString2String(
        &pstr_env_var,
        rtl_uString_getStr(pustrEnvVar), rtl_uString_getLength(pustrEnvVar), encoding,
        OUSTRING_TO_OSTRING_CVTFLAGS);

    if (pstr_env_var)
    {
        if (unsetenv(rtl_string_getStr(pstr_env_var)) == 0)
            result = osl_Process_E_None;
        rtl_string_release(pstr_env_var);
    }

    return (result);
}

/***************************************
 osl_getProcessWorkingDir().
 **************************************/
oslProcessError SAL_CALL osl_getProcessWorkingDir(rtl_uString **ppustrWorkingDir)
{
    oslProcessError result = osl_Process_E_Unknown;
    char buffer[PATH_MAX];

    OSL_PRECOND(ppustrWorkingDir, "osl_getProcessWorkingDir(): Invalid parameter");

    if (getcwd (buffer, sizeof(buffer)) != 0)
    {
        rtl_uString* ustrTmp = 0;

        rtl_string2UString(
            &ustrTmp,
            buffer, strlen(buffer), osl_getThreadTextEncoding(),
            OSTRING_TO_OUSTRING_CVTFLAGS);
        if (ustrTmp != 0)
        {
            if (osl_getFileURLFromSystemPath (ustrTmp, ppustrWorkingDir) == osl_File_E_None)
                result = osl_Process_E_None;
            rtl_uString_release (ustrTmp);
        }
    }

    return (result);
}

/******************************************************************************
 *
 *              new functions to set/return the current process locale
 *
 *****************************************************************************/

struct ProcessLocale_Impl
{
    oslMutex        m_mutex;
    rtl_Locale *    m_pLocale;
};

static struct ProcessLocale_Impl g_process_locale =
{
    osl_createMutex(),
    0
};

extern "C" void _imp_getProcessLocale( rtl_Locale ** );
extern "C" int  _imp_setProcessLocale( rtl_Locale * );

/**********************************************
 osl_getProcessLocale().
 *********************************************/
oslProcessError SAL_CALL osl_getProcessLocale( rtl_Locale ** ppLocale )
{
    OSL_PRECOND(ppLocale, "osl_getProcessLocale(): Invalid parameter.");

    osl_acquireMutex(g_process_locale.m_mutex);

    if (g_process_locale.m_pLocale == 0)
        _imp_getProcessLocale (&(g_process_locale.m_pLocale));
    *ppLocale = g_process_locale.m_pLocale;

    osl_releaseMutex(g_process_locale.m_mutex);

    return (osl_Process_E_None);
}

/**********************************************
 osl_setProcessLocale().
 *********************************************/
oslProcessError SAL_CALL osl_setProcessLocale( rtl_Locale * pLocale )
{
    oslProcessError result = osl_Process_E_Unknown;

    OSL_PRECOND(pLocale, "osl_setProcessLocale(): Invalid parameter.");

    osl_acquireMutex(g_process_locale.m_mutex);
    if (_imp_setProcessLocale (pLocale) == 0)
    {
        g_process_locale.m_pLocale = pLocale;
        result = osl_Process_E_None;
    }
    osl_releaseMutex(g_process_locale.m_mutex);

    return (result);
}