* Copyright (c) 2026 Huawei Device Co., Ltd.
* 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 "easy_socket_writer.h"
#include <errno.h>
#include <stddef.h>
#include <stdint.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
#include "easy_def.h"
#include "easy_util.h"
#ifdef __cplusplus
extern "C" {
#endif
#ifndef MUSL_TEMP_FAILURE_RETRY
#define MUSL_TEMP_FAILURE_RETRY(exp) \
({ \
long int _rc; \
do { \
_rc = (long int)(exp); \
} while ((_rc == -1) && (errno == EINTR)); \
_rc; \
})
#endif
#ifndef TEMP_FAILURE_RETRY
#define TEMP_FAILURE_RETRY(exp) MUSL_TEMP_FAILURE_RETRY(exp)
#endif
static const char SOCKET_PATH[] = "/dev/unix/socket/hisysevent";
static int InitSendBuffer(int socketId)
{
int sendBuffSize = 384 * 1024;
if (setsockopt(socketId, SOL_SOCKET, SO_SNDBUF, (void*)(&sendBuffSize), sizeof(int)) < 0) {
return ERR_SET_SOCKET_OPT_FAILED;
}
return SUCCESS;
}
static int InitSocket(struct sockaddr_un* socketAddr)
{
if (socketAddr == NULL) {
return ERR_SOCKET_ADDR_INVALID;
}
int ret = MemoryInit((uint8_t*)(socketAddr), sizeof(struct sockaddr_un));
if (ret != SUCCESS) {
return ret;
}
ret = MemoryCopy((uint8_t*)(socketAddr->sun_path), sizeof(socketAddr->sun_path), (uint8_t*)SOCKET_PATH,
strlen(SOCKET_PATH));
if (ret != SUCCESS) {
return ret;
}
socketAddr->sun_family = AF_UNIX;
return SUCCESS;
}
int Write(const uint8_t* data, const size_t dataLen)
{
if (data == NULL) {
return ERR_EVENT_BUF_INVALID;
}
int socketId = TEMP_FAILURE_RETRY(socket(AF_UNIX, SOCK_DGRAM | SOCK_NONBLOCK | SOCK_CLOEXEC, 0));
if (socketId < 0) {
close(socketId);
return ERR_INIT_SOCKET_FAILED;
}
int ret = InitSendBuffer(socketId);
if (ret != SUCCESS) {
close(socketId);
return ret;
}
struct sockaddr_un socketAddr;
ret = InitSocket(&socketAddr);
if (ret != SUCCESS) {
close(socketId);
return ret;
}
int sendRet = 0;
int retryTimes = 3;
do {
sendRet = sendto(socketId, data, dataLen, 0, (struct sockaddr*)(&socketAddr),
sizeof(socketAddr));
retryTimes--;
} while (sendRet < 0 && retryTimes > 0 && (errno == EAGAIN || errno == EWOULDBLOCK || errno == EINTR));
if (sendRet < 0) {
close(socketId);
return ERR_SOCKET_SEND_ERROR_BASE + errno;
}
close(socketId);
return SUCCESS;
}
#ifdef __cplusplus
}
#endif
