/*
* init_job_data.c - Part of AFD, an automatic file distribution program.
* Copyright (c) 1998 - 2023 Holger Kiehl <Holger.Kiehl@dwd.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "afddefs.h"
DESCR__S_M3
/*
** NAME
** init_job_data -
**
** SYNOPSIS
** void init_job_data(void)
**
** DESCRIPTION
**
** RETURN VALUES
** None.
**
** AUTHOR
** H.Kiehl
**
** HISTORY
** 21.01.1998 H.Kiehl Created
** 29.12.2003 H.Kiehl Added file mask database.
**
*/
DESCR__E_M3
#include <string.h> /* strcpy(), strcat(), strlen(), strerror() */
#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h> /* exit() */
#include <unistd.h> /* read() */
#ifdef HAVE_FCNTL_H
# include <fcntl.h>
#endif
#ifdef HAVE_MMAP
# include <sys/mman.h> /* munmap() */
#endif
#include <errno.h>
#include "amgdefs.h"
/* External global variables. */
extern int dnb_fd,
fmd_fd,
jd_fd,
*no_of_dir_names,
*no_of_file_masks,
*no_of_job_ids;
extern off_t fmd_size;
extern char *fmd,
*fmd_end,
msg_dir[],
*p_msg_dir,
*p_work_dir;
extern struct job_id_data *jd;
extern struct dir_name_buf *dnb;
/*########################### init_job_data() ###########################*/
void
init_job_data(void)
{
int new_job_id_data_file;
char *ptr,
job_id_data_file[MAX_PATH_LENGTH],
dir_name_file[MAX_PATH_LENGTH],
file_mask_file[MAX_PATH_LENGTH];
size_t new_size;
#ifdef HAVE_STATX
struct statx stat_buf;
#else
struct stat stat_buf;
#endif
(void)strcpy(job_id_data_file, p_work_dir);
(void)strcat(job_id_data_file, FIFO_DIR);
(void)strcpy(dir_name_file, job_id_data_file);
(void)strcat(dir_name_file, DIR_NAME_FILE);
(void)strcpy(file_mask_file, job_id_data_file);
(void)strcat(file_mask_file, FILE_MASK_FILE);
(void)strcat(job_id_data_file, JOB_ID_DATA_FILE);
(void)strcpy(msg_dir, p_work_dir);
(void)strcat(msg_dir, AFD_MSG_DIR);
(void)strcat(msg_dir, "/");
p_msg_dir = msg_dir + strlen(msg_dir);
/* Check if job ID data file exists. */
#ifdef HAVE_STATX
if (statx(0, job_id_data_file, AT_STATX_SYNC_AS_STAT, 0, &stat_buf) == -1)
#else
if (stat(job_id_data_file, &stat_buf) == -1)
#endif
{
new_job_id_data_file = YES;
}
else
{
new_job_id_data_file = NO;
}
/* Attach job ID data. */
new_size = (JOB_ID_DATA_STEP_SIZE * sizeof(struct job_id_data)) +
AFD_WORD_OFFSET;
if ((ptr = attach_buf(job_id_data_file, &jd_fd, &new_size,
"AMG1", FILE_MODE, NO)) == (caddr_t) -1)
{
system_log(FATAL_SIGN, __FILE__, __LINE__,
"Failed to mmap() to `%s' : %s",
job_id_data_file, strerror(errno));
exit(INCORRECT);
}
no_of_job_ids = (int *)ptr;
if ((*no_of_job_ids == 0) ||
(*(ptr + SIZEOF_INT + 1 + 1 + 1) != CURRENT_JID_VERSION))
{
if (*(ptr + SIZEOF_INT + 1 + 1 + 1) != CURRENT_JID_VERSION)
{
if (*no_of_job_ids == 0)
{
if (new_job_id_data_file == NO)
{
system_log(DEBUG_SIGN, __FILE__, __LINE__,
"Removing old JID database with version %d, creating new version %d.",
(int)*(ptr + SIZEOF_INT + 1 + 1 + 1),
CURRENT_JID_VERSION);
}
}
else
{
#ifdef HAVE_MMAP
off_t old_jid_size = new_size;
#endif
char *tmp_ptr = ptr;
if ((ptr = convert_jid(jd_fd, job_id_data_file, &new_size,
*no_of_job_ids,
*(ptr + SIZEOF_INT + 1 + 1 + 1),
CURRENT_JID_VERSION)) == NULL)
{
system_log(ERROR_SIGN, __FILE__, __LINE__,
"Failed to convert_jid() %s", job_id_data_file);
ptr = tmp_ptr;
no_of_job_ids = (int *)ptr;
*no_of_job_ids = 0;
}
else
{
#ifdef HAVE_MMAP
if (munmap(tmp_ptr, old_jid_size) == -1)
#else
if (munmap_emu(tmp_ptr) == -1)
#endif
{
system_log(ERROR_SIGN, __FILE__, __LINE__,
_("Failed to munmap() JID : %s"),
strerror(errno));
}
no_of_job_ids = (int *)ptr;
}
}
}
*(ptr + SIZEOF_INT + 1) = 0; /* Not used. */
*(ptr + SIZEOF_INT + 1 + 1) = 0; /* Not used. */
*(ptr + SIZEOF_INT + 1 + 1 + 1) = CURRENT_JID_VERSION;
(void)memset((ptr + SIZEOF_INT + 4), 0, SIZEOF_INT); /* Not used. */
*(ptr + SIZEOF_INT + 4 + SIZEOF_INT) = 0; /* Not used. */
*(ptr + SIZEOF_INT + 4 + SIZEOF_INT + 1) = 0; /* Not used. */
*(ptr + SIZEOF_INT + 4 + SIZEOF_INT + 2) = 0; /* Not used. */
*(ptr + SIZEOF_INT + 4 + SIZEOF_INT + 3) = 0; /* Not used. */
}
ptr += AFD_WORD_OFFSET;
jd = (struct job_id_data *)ptr;
#ifdef LOCK_DEBUG
lock_region_w(jd_fd, (off_t)1, __FILE__, __LINE__);
#else
lock_region_w(jd_fd, (off_t)1);
#endif
/* Attach directory names. */
new_size = (DIR_NAME_BUF_SIZE * sizeof(struct dir_name_buf)) +
AFD_WORD_OFFSET;
if ((ptr = attach_buf(dir_name_file, &dnb_fd, &new_size,
"AMG2", FILE_MODE, YES)) == (caddr_t) -1)
{
system_log(FATAL_SIGN, __FILE__, __LINE__,
"Failed to mmap() to `%s' : %s",
dir_name_file, strerror(errno));
exit(INCORRECT);
}
no_of_dir_names = (int *)ptr;
if (*no_of_dir_names == 0)
{
*(ptr + SIZEOF_INT + 1) = 0; /* Not used. */
*(ptr + SIZEOF_INT + 1 + 1) = 0; /* Not used. */
*(ptr + SIZEOF_INT + 1 + 1 + 1) = CURRENT_DNB_VERSION;
(void)memset((ptr + SIZEOF_INT + 4), 0, SIZEOF_INT); /* Not used. */
*(ptr + SIZEOF_INT + 4 + SIZEOF_INT) = 0; /* Not used. */
*(ptr + SIZEOF_INT + 4 + SIZEOF_INT + 1) = 0; /* Not used. */
*(ptr + SIZEOF_INT + 4 + SIZEOF_INT + 2) = 0; /* Not used. */
*(ptr + SIZEOF_INT + 4 + SIZEOF_INT + 3) = 0; /* Not used. */
}
ptr += AFD_WORD_OFFSET;
dnb = (struct dir_name_buf *)ptr;
/* Attach file mask. */
new_size = AFD_WORD_OFFSET;
if ((ptr = attach_buf(file_mask_file, &fmd_fd, &new_size,
"AMG3", FILE_MODE, YES)) == (caddr_t) -1)
{
system_log(FATAL_SIGN, __FILE__, __LINE__,
"Failed to mmap() to `%s' : %s",
file_mask_file, strerror(errno));
exit(INCORRECT);
}
fmd_end = ptr + new_size;
fmd_size = new_size;
no_of_file_masks = (int *)ptr;
if (*no_of_file_masks == 0)
{
*(ptr + SIZEOF_INT + 1) = 0; /* Not used. */
*(ptr + SIZEOF_INT + 1 + 1) = 0; /* Not used. */
*(ptr + SIZEOF_INT + 1 + 1 + 1) = CURRENT_FMD_VERSION;
(void)memset((ptr + SIZEOF_INT + 4), 0, SIZEOF_INT); /* Not used. */
*(ptr + SIZEOF_INT + 4 + SIZEOF_INT) = 0; /* Not used. */
*(ptr + SIZEOF_INT + 4 + SIZEOF_INT + 1) = 0; /* Not used. */
*(ptr + SIZEOF_INT + 4 + SIZEOF_INT + 2) = 0; /* Not used. */
*(ptr + SIZEOF_INT + 4 + SIZEOF_INT + 3) = 0; /* Not used. */
}
ptr += AFD_WORD_OFFSET;
fmd = ptr;
return;
}