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103 lines
2.5 KiB
C
103 lines
2.5 KiB
C
/*
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* This file is part of the EasyLogger Library.
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*
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* Copyright (c) 2015-2019, Qintl, <qintl_linux@163.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* 'Software'), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* Function: Save log to file.
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* Created on: 2019-01-05
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*/
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <stdbool.h>
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#include <file/elog_file.h>
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#include <file/elog_file_cfg.h>
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/* initialize OK flag */
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static bool init_ok = false;
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static FILE *fp;
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static int fd;
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static Elog_File_Cfg file;
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static void elog_file_config_init(Elog_File_Cfg *file);
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ElogErrCode elog_file_init(void)
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{
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ElogErrCode result = ELOG_NO_ERR;
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if (init_ok)
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goto __exit;
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elog_file_config_init(&file);
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fp = fopen(file.name, "a+");
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if (fp)
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fd = fileno(fp);
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else
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fd = -1;
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elog_file_port_init();
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init_ok = true;
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__exit:
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return result;
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}
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void elog_file_write(const char *log, size_t size)
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{
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ELOG_ASSERT(init_ok);
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ELOG_ASSERT(log);
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struct stat statbuf;
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statbuf.st_size = 0;
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fstat(fd, &statbuf);
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if (unlikely(statbuf.st_size > file.max_size))
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return ;
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elog_file_port_lock();
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fwrite(log, size, 1, fp);
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#ifdef ELOG_FILE_FLUSH_CAHCE_ENABLE
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fflush(fp);
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fsync(fd);
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#endif
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elog_file_port_unlock();
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}
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void elog_file_deinit(void)
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{
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ELOG_ASSERT(init_ok);
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elog_file_port_deinit();
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fclose(fp);
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}
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static void elog_file_config_init(Elog_File_Cfg *file)
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{
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file->name = ELOG_FILE_NAME;
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file->max_size = ELOG_FILE_MAX_SIZE;
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}
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