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Create and read persisted config dir

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The persisted configuration directory is created and/or read when MaxScale
starts. This allows the servers created at runtime to be recreated when
MaxScale is restarted.
This commit is contained in:
Markus Makela
2016-11-10 11:24:45 +02:00
parent ec894f41b8
commit 6847ed1c37
1 changed files with 49 additions and 21 deletions
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70
server/core/config.c
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@ -541,6 +541,46 @@ static bool config_load_dir(const char *dir, DUPLICATE_CONTEXT *dcontext, CONFIG
return rv == 0; return rv == 0;
} }
/**
* Check if a directory exists
*
* This function also logs warnings if the directory cannot be accessed or if
* the file is not a directory.
* @param dir Directory to check
* @return True if the file is an existing directory
*/
static bool is_directory(const char *dir)
{
bool rval = false;
struct stat st;
if (stat(dir, &st) == -1)
{
if (errno == ENOENT)
{
MXS_NOTICE("%s does not exist, not reading.", dir);
}
else
{
char errbuf[MXS_STRERROR_BUFLEN];
MXS_WARNING("Could not access %s, not reading: %s",
dir, strerror_r(errno, errbuf, sizeof(errbuf)));
}
}
else
{
if (S_ISDIR(st.st_mode))
{
rval = true;
}
else
{
MXS_WARNING("%s exists, but it is not a directory. Ignoring.", dir);
}
}
return rval;
}
/** /**
* @brief Load the specified configuration file for MaxScale * @brief Load the specified configuration file for MaxScale
* *
@ -574,30 +614,18 @@ config_load_and_process(const char* filename, bool (*process_config)(CONFIG_CONT
rval = true; rval = true;
struct stat st; if (is_directory(dir))
if (stat(dir, &st) == -1)
{ {
if (errno == ENOENT) rval = config_load_dir(dir, &dcontext, &ccontext);
{
MXS_NOTICE("%s does not exist, not reading.", dir);
}
else
{
char errbuf[MXS_STRERROR_BUFLEN];
MXS_WARNING("Could not access %s, not reading: %s",
dir, strerror_r(errno, errbuf, sizeof(errbuf)));
}
} }
else
/** Create the persisted configuration directory if it doesn't exist */
const char* persist_cnf = get_config_persistdir();
mxs_mkdir_all(persist_cnf, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);
if (is_directory(persist_cnf))
{ {
if (S_ISDIR(st.st_mode)) rval = config_load_dir(persist_cnf, &dcontext, &ccontext);
{
rval = config_load_dir(dir, &dcontext, &ccontext);
}
else
{
MXS_WARNING("%s exists, but it is not a directory. Ignoring.", dir);
}
} }
if (rval) if (rval)