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omrsysv_ipcwrappers.c
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omrsysv_ipcwrappers.c
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/*******************************************************************************
* Copyright (c) 2020, 2020 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
*******************************************************************************/
#include "omrsysv_ipcwrappers.h"
static void omr_setPortableError(OMRPortLibrary *portLibrary, const char * sysvfxName, int32_t sysvfx, int sysverrno);
static const char * ftokErrorMsgPrefix = "ftok : ";
static const char * semgetErrorMsgPrefix ="semget : ";
static const char * semctlErrorMsgPrefix ="semctl : ";
static const char * semopErrorMsgPrefix ="semop : ";
static const char * shmgetErrorMsgPrefix ="shmget : ";
static const char * shmctlErrorMsgPrefix ="shmctl : ";
static const char * shmatErrorMsgPrefix ="shmat : ";
static const char * shmdtErrorMsgPrefix ="shmdt : ";
#if defined (J9ZOS390)
static const char * getipcErrorMsgPrefix = "__getipc : ";
#endif
int
omr_ftokWrapper(OMRPortLibrary *portLibrary, const char *baseFile, int proj_id)
{
int result = ftok(baseFile, proj_id);
if (result == -1) {
int myerror = errno;
omr_setPortableError(portLibrary, ftokErrorMsgPrefix,
OMRPORT_ERROR_SYSV_IPC_FTOK_ERROR, myerror);
}
return result;
}
int
omr_semgetWrapper(OMRPortLibrary *portLibrary, key_t key, int nsems, int semflg)
{
int result = semget(key, nsems, semflg);
if (result == -1) {
int myerror = errno;
omr_setPortableError(portLibrary, semgetErrorMsgPrefix,
OMRPORT_ERROR_SYSV_IPC_SEMGET_ERROR, myerror);
}
return result;
}
int
omr_shmgetWrapper(OMRPortLibrary *portLibrary, key_t key, size_t size, int shmflg)
{
int result = shmget(key, size, shmflg);
if (result == -1) {
int myerror = errno;
omr_setPortableError(portLibrary, shmgetErrorMsgPrefix,
OMRPORT_ERROR_SYSV_IPC_SHMGET_ERROR, myerror);
}
return result;
}
int
omr_semctlWrapper(OMRPortLibrary *portLibrary, BOOLEAN storeError, int semid, int semnum, int cmd, ...)
{
int result = -1;
va_list argp;
semctlUnion arg;
int myerror;
/*NOTE: we only handle an arg for the below command (since this is all we use with args)*/
if ((cmd == IPC_STAT) || (cmd == SETVAL)) {
va_start(argp, cmd);
arg = va_arg(argp, semctlUnion);
result = semctl(semid, semnum, cmd, arg);
myerror = errno;
va_end(argp);
} else {
result = semctl(semid, semnum, cmd);
myerror = errno;
}
if (result == -1) {
if (TRUE == storeError) {
omr_setPortableError(portLibrary, semctlErrorMsgPrefix,
OMRPORT_ERROR_SYSV_IPC_SEMCTL_ERROR, myerror);
} else {
Trc_PRT_sysvipc_omr_semctlWrapper_Failed(myerror);
}
}
return result;
}
int
omr_semopWrapper(OMRPortLibrary *portLibrary, int semid, struct sembuf *sops, size_t nsops)
{
int result = semop(semid, sops, nsops);
if (result == -1) {
int myerror = errno;
omr_setPortableError(portLibrary, semopErrorMsgPrefix,
OMRPORT_ERROR_SYSV_IPC_SEMOP_ERROR, myerror);
}
return result;
}
int
omr_shmctlWrapper(OMRPortLibrary *portLibrary, BOOLEAN storeError, int shmid, int cmd, struct shmid_ds *buf)
{
int result = shmctl(shmid, cmd, buf);
if (result == -1) {
if (TRUE == storeError) {
int myerror = errno;
omr_setPortableError(portLibrary, shmctlErrorMsgPrefix,
OMRPORT_ERROR_SYSV_IPC_SHMCTL_ERROR, myerror);
} else {
Trc_PRT_omr_sysvipc_shmctlWrapper_Failed(errno);
}
}
return result;
}
void *
omr_shmatWrapper(OMRPortLibrary *portLibrary, int shmid, const void *shmaddr, int shmflg)
{
void * result = shmat(shmid, shmaddr, shmflg);
if (result == (void*)-1) {
int myerror = errno;
omr_setPortableError(portLibrary, shmatErrorMsgPrefix,
OMRPORT_ERROR_SYSV_IPC_SHMAT_ERROR, myerror);
}
return result;
}
int
omr_shmdtWrapper(OMRPortLibrary *portLibrary, const void *shmaddr)
{
int32_t result = shmdt(shmaddr);
if (result == -1) {
int myerror = errno;
omr_setPortableError(portLibrary, shmdtErrorMsgPrefix,
OMRPORT_ERROR_SYSV_IPC_SHMDT_ERROR, myerror);
}
return result;
}
#if defined (J9ZOS390)
int
omr_getipcWrapper(OMRPortLibrary *portLibrary, int id, IPCQPROC *info, size_t length, int cmd)
{
int result = __getipc(id, info, length, cmd);
if (result == -1) {
int myerror = errno;
omr_setPortableError(portLibrary, getipcErrorMsgPrefix,
OMRPORT_ERROR_SYSV_IPC_GETIPC_ERROR, myerror);
}
return result;
}
#endif
static void
omr_setPortableError(OMRPortLibrary *portLibrary, const char * sysvfxName, int32_t sysvfx, int sysverrno)
{
char * errmsgbuff = NULL;
int32_t errmsglen = J9ERROR_DEFAULT_BUFFER_SIZE;
int32_t portableErrno = sysvfx;
switch (sysverrno) {
#if defined(EACCES)
case EACCES:
portableErrno += OMRPORT_ERROR_SYSV_IPC_ERRNO_EACCES;
break;
#endif
case EEXIST:
portableErrno += OMRPORT_ERROR_SYSV_IPC_ERRNO_EEXIST;
break;
case ENOENT:
portableErrno += OMRPORT_ERROR_SYSV_IPC_ERRNO_ENOENT;
break;
case EINVAL:
portableErrno += OMRPORT_ERROR_SYSV_IPC_ERRNO_EINVAL;
break;
case ENOMEM:
portableErrno += OMRPORT_ERROR_SYSV_IPC_ERRNO_ENOMEM;
break;
case ENOSPC:
portableErrno += OMRPORT_ERROR_SYSV_IPC_ERRNO_ENOSPC;
break;
case ELOOP:
portableErrno += OMRPORT_ERROR_SYSV_IPC_ERRNO_ELOOP;
break;
case ENAMETOOLONG:
portableErrno += OMRPORT_ERROR_SYSV_IPC_ERRNO_ENAMETOOLONG;
break;
case ENOTDIR:
portableErrno += OMRPORT_ERROR_SYSV_IPC_ERRNO_ENOTDIR;
break;
#if defined(EPERM)
case EPERM:
portableErrno += OMRPORT_ERROR_SYSV_IPC_ERRNO_EPERM;
break;
#endif
case ERANGE:
portableErrno += OMRPORT_ERROR_SYSV_IPC_ERRNO_ERANGE;
break;
case E2BIG:
portableErrno += OMRPORT_ERROR_SYSV_IPC_ERRNO_E2BIG;
break;
case EAGAIN:
portableErrno += OMRPORT_ERROR_SYSV_IPC_ERRNO_EAGAIN;
break;
case EFBIG:
portableErrno += OMRPORT_ERROR_SYSV_IPC_ERRNO_EFBIG;
break;
#if defined(EIDRM)
case EIDRM:
portableErrno += OMRPORT_ERROR_SYSV_IPC_ERRNO_EIDRM;
break;
#endif
case EINTR:
portableErrno += OMRPORT_ERROR_SYSV_IPC_ERRNO_EINTR;
break;
case EMFILE:
portableErrno += OMRPORT_ERROR_SYSV_IPC_ERRNO_EMFILE;
break;
default:
portableErrno += OMRPORT_ERROR_SYSV_IPC_ERRNO_UNMAPPED;
break;
}
/*Get size of str_printf buffer (it includes null terminator)*/
errmsglen = omrstr_printf(portLibrary, NULL, 0,
"%s%s", sysvfxName,
strerror(sysverrno));
if (errmsglen <= 0) {
/*Set the error with no message*/
omrerror_set_last_error(portLibrary, sysverrno, portableErrno);
return;
}
/*Alloc the buffer*/
errmsgbuff = omrmem_allocate_memory(portLibrary, errmsglen, OMR_GET_CALLSITE(), OMRMEM_CATEGORY_PORT_LIBRARY);
if (NULL == errmsgbuff) {
/*Set the error with no message*/
omrerror_set_last_error(portLibrary, sysverrno, portableErrno);
return;
}
/*Fill the buffer using str_printf*/
omrstr_printf(portLibrary, errmsgbuff,
errmsglen, "%s%s", sysvfxName,
strerror(sysverrno));
/*Set the error message*/
omrerror_set_last_error_with_message(portLibrary,
portableErrno,
errmsgbuff);
/*Free the buffer*/
omrmem_free_memory(portLibrary, errmsgbuff);
return;
}