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Improved error handlign for binlog directory and files

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This commit is contained in:
Mark Riddoch
2014-12-09 09:55:05 +00:00
parent 26e3486966
commit 0fb1918887
3 changed files with 53 additions and 21 deletions
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35
server/modules/routing/binlog/blr_file.c
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@ -55,7 +55,7 @@ extern size_t log_ses_count[];
extern __thread log_info_t tls_log_info;
static void blr_file_create(ROUTER_INSTANCE *router, char *file);
static int blr_file_create(ROUTER_INSTANCE *router, char *file);
static void blr_file_append(ROUTER_INSTANCE *router, char *file);
static uint32_t extract_field(uint8_t *src, int bits);
static void blr_log_header(logfile_id_t file, char *msg, uint8_t *ptr);
@ -68,7 +68,7 @@ static void blr_log_header(logfile_id_t file, char *msg, uint8_t *ptr);
*
* @param router The router instance this defines the master for this replication chain
*/
void
int
blr_file_init(ROUTER_INSTANCE *router)
{
char *ptr, path[1024], filename[1050];
@ -92,16 +92,28 @@ struct dirent *dp;
router->binlogdir = strdup(path);
}
else
{
strncpy(path, router->binlogdir, 1024);
}
if (access(router->binlogdir, R_OK) == -1)
{
LOGIF(LE, (skygw_log_write(LOGFILE_ERROR,
"%s: Unable to read the binlog directory %s.",
router->service->name, router->binlogdir)));
return 0;
}
/* First try to find a binlog file number by reading the directory */
root_len = strlen(router->fileroot);
dirp = opendir(path);
if ((dirp = opendir(path)) == NULL)
{
LOGIF(LE, (skygw_log_write(LOGFILE_ERROR,
"%s: Unable to read the binlog directory %s, %s.",
router->service->name, router->binlogdir,
strerror(errno))));
return 0;
}
while ((dp = readdir(dirp)) != NULL)
{
if (strncmp(dp->d_name, router->fileroot, root_len) == 0)
@ -134,20 +146,21 @@ struct dirent *dp;
router->initbinlog);
else
sprintf(filename, BINLOG_NAMEFMT, router->fileroot, 1);
blr_file_create(router, filename);
if (! blr_file_create(router, filename))
return 0;
}
else
{
sprintf(filename, BINLOG_NAMEFMT, router->fileroot, n);
blr_file_append(router, filename);
}
return 1;
}
void
int
blr_file_rotate(ROUTER_INSTANCE *router, char *file, uint64_t pos)
{
blr_file_create(router, file);
return blr_file_create(router, file);
}
@ -156,8 +169,9 @@ blr_file_rotate(ROUTER_INSTANCE *router, char *file, uint64_t pos)
*
* @param router The router instance
* @param file The binlog file name
* @return Non-zero if the fie creation succeeded
*/
static void
static int
blr_file_create(ROUTER_INSTANCE *router, char *file)
{
char path[1024];
@ -175,7 +189,9 @@ unsigned char magic[] = BINLOG_MAGIC;
else
{
LOGIF(LE, (skygw_log_write(LOGFILE_ERROR,
"Failed to create binlog file %s", path)));
"%s: Failed to create binlog file %s, %s.",
router->service->name, path, strerror(errno))));
return 0;
}
fsync(fd);
close(router->binlog_fd);
@ -184,6 +200,7 @@ unsigned char magic[] = BINLOG_MAGIC;
router->binlog_position = 4; /* Initial position after the magic number */
spinlock_release(&router->binlog_lock);
router->binlog_fd = fd;
return 1;
}