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omrsyslog.c
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omrsyslog.c
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/*******************************************************************************
* Copyright (c) 1991, 2021 IBM Corp. and others
*
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which accompanies this
* distribution and is available at https://www.eclipse.org/legal/epl-2.0/
* or the Apache License, Version 2.0 which accompanies this distribution and
* is available at https://www.apache.org/licenses/LICENSE-2.0.
*
* This Source Code may also be made available under the following
* Secondary Licenses when the conditions for such availability set
* forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
* General Public License, version 2 with the GNU Classpath
* Exception [1] and GNU General Public License, version 2 with the
* OpenJDK Assembly Exception [2].
*
* [1] https://www.gnu.org/software/classpath/license.html
* [2] http://openjdk.java.net/legal/assembly-exception.html
*
* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
*******************************************************************************/
/**
* @file
* @ingroup Port
* @brief System logging support
*/
#include "omrportpriv.h"
#if defined(J9ZOS390) && !defined(OMR_EBCDIC)
#include "atoe.h"
#endif
#include <string.h>
#include <sys/__messag.h>
uintptr_t writeToZOSLog(const char *message);
/**
* Write a message to the system log.
*
* @param[in] portLibrary The port library
* @param[in] flags - to indicate what type of message (e.g. ERROR) is to be output
* @param[in] message - text of the message
*
* @return Boolean: true on success, false on failure
*/
uintptr_t
omrsyslog_write(struct OMRPortLibrary *portLibrary, uintptr_t flags, const char *message)
{
if (NULL != portLibrary->portGlobals && TRUE == PPG_syslog_enabled) {
return writeToZOSLog(message);
}
}
/**
* Open the system log.
*
* @param[in] portLibrary The port library
* @param[in] flags - for future expansion
*
* @return Boolean: true on success, false on failure
*/
uintptr_t
syslogOpen(struct OMRPortLibrary *portLibrary, uintptr_t flags)
{
if (NULL != portLibrary->portGlobals) {
PPG_syslog_enabled = TRUE;
return TRUE;
}
return FALSE;
}
/**
* Close the system log.
*
* @param[in] portLibrary The port library
*
* @return Boolean: true on success, false on failure
*/
uintptr_t
syslogClose(struct OMRPortLibrary *portLibrary)
{
if (NULL != portLibrary->portGlobals) {
PPG_syslog_enabled = FALSE;
return TRUE;
}
return FALSE;
}
uintptr_t
writeToZOSLog(const char *message)
{
char *ebcdicbuf = NULL;
int rc = 0;
struct __cons_msg2 cons;
int modcmd = 0;
unsigned int routeCodes[2] = {2, 0}; /* routing code 2 = Operator Information */
unsigned int descCodes[2] = {12, 0}; /* descriptor code 12 = Important Information, no operator action reqd */
#if !defined(OMR_EBCDIC)
/* Convert from the internal ascii format to ebcdic */
ebcdicbuf = a2e_func((char *) message, strlen(message));
if (NULL == ebcdicbuf) {
return FALSE;
}
#else
ebcdicbuf = (char *)message;
#endif /* !defined(OMR_EBCDIC) */
/* Re-implemented using _console2() instead of WTO, to provided proper multi-line messages. See
* http://publib.boulder.ibm.com/infocenter/zos/v1r9/index.jsp?topic=/com.ibm.zos.r9.bpxbd00/consol2.htm
*/
cons.__cm2_format = __CONSOLE_FORMAT_2;
cons.__cm2_msglength = strlen(message);
cons.__cm2_msg = ebcdicbuf;
cons.__cm2_routcde = routeCodes;
cons.__cm2_descr = descCodes;
cons.__cm2_mcsflag = 0;
cons.__cm2_token = 0;
cons.__cm2_msgid = NULL;
cons.__cm2_dom_token = 0;
cons.__cm2_dom_msgid = NULL;
rc = __console2(&cons, NULL, &modcmd);
#if !defined(OMR_EBCDIC)
free(ebcdicbuf);
#endif /* !defined(OMR_EBCDIC) */
if (0 == rc) {
return TRUE;
} else {
return FALSE;
}
}
/**
* Query the settings of the system log.
*
* @param[in] portLibrary The port library
*
* @return uintptr_t: the current logging options
*/
uintptr_t
omrsyslog_query(struct OMRPortLibrary *portLibrary)
{
/* query the logging options here */
return PPG_syslog_flags;
}
/**
* Set the system log flags.
*
* @param[in] portLibrary The port library
* @param[in] options - uintptr_t containing the options to set
*
* @return void
*/
void
omrsyslog_set(struct OMRPortLibrary *portLibrary, uintptr_t options)
{
/* set the logging options here */
PPG_syslog_flags = options;
}