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/*
* @copyright Copyright (c) 2016-2020 TOYOTA MOTOR CORPORATION.
*
* Licensed 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.
*/
#include <stdio.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <native_service/loglibrarylog_if.h>
#include "loglibrarylog_internal.h"
int
LOGLIBRARYLOG_Freeze(void) {
int fd;
int *pmap;
int ret;
fd = shm_open(FRAMEWORKUNIFIEDLOG_SHARED_MEM_NAME, O_RDWR | O_CREAT, S_IRWXU | S_IRWXO);
if (fd == -1) {
fprintf(stderr, "[%s:L%d]shm_open(%s) error(%d)\n", __FUNCTION__, __LINE__,
FRAMEWORKUNIFIEDLOG_SHARED_MEM_NAME, errno);
return -1;
}
ret = ftruncate(fd, sizeof(int));
if (ret == 0) {
fprintf(stderr, "[%s:L%d]ftruncate() error(%d)\n", __FUNCTION__, __LINE__, ret);
close(fd);
return -1;
}
pmap = mmap(NULL, sizeof(int), PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
close(fd);
if (pmap == MAP_FAILED) {
fprintf(stderr, "[%s:L%d]mmap() error(%d)\n", __FUNCTION__, __LINE__, errno);
return -1;
}
*pmap = FRAMEWORKUNIFIEDLOG_REALTIMELOG_MODE_FREEZE;
if (munmap(pmap, sizeof(int)) != 0) {
fprintf(stderr, "[%s:L%d]munmap() error(%d)\n", __FUNCTION__, __LINE__, errno);
}
return 0;
}
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