/* Ensure that the RA library NAME is loaded.
*
* If FUNC is non-NULL, set *FUNC to the address of the svn_ra_NAME__init
* function of the library.
*
* If COMPAT_FUNC is non-NULL, set *COMPAT_FUNC to the address of the
* svn_ra_NAME_init compatibility init function of the library.
*
* ### todo: Any RA libraries implemented from this point forward
* ### don't really need an svn_ra_NAME_init compatibility function.
* ### Currently, load_ra_module() will error if no such function is
* ### found, but it might be more friendly to simply set *COMPAT_FUNC
* ### to null (assuming COMPAT_FUNC itself is non-null).
*/
static svn_error_t *
load_ra_module(svn_ra__init_func_t *func,
svn_ra_init_func_t *compat_func,
const char *ra_name, apr_pool_t *pool)
{
if (func)
*func = NULL;
if (compat_func)
*compat_func = NULL;
#if defined(SVN_USE_DSO) && APR_HAS_DSO
{
apr_dso_handle_t *dso;
apr_dso_handle_sym_t symbol;
const char *libname;
const char *funcname;
const char *compat_funcname;
apr_status_t status;
libname = apr_psprintf(pool, "libsvn_ra_%s-%d.so.0",
ra_name, SVN_VER_MAJOR);
funcname = apr_psprintf(pool, "svn_ra_%s__init", ra_name);
compat_funcname = apr_psprintf(pool, "svn_ra_%s_init", ra_name);
/* find/load the specified library */
SVN_ERR(svn_dso_load(&dso, libname));
if (! dso)
return SVN_NO_ERROR;
/* find the initialization routines */
if (func)
{
status = apr_dso_sym(&symbol, dso, funcname);
if (status)
{
return svn_error_wrap_apr(status,
_("'%s' does not define '%s()'"),
libname, funcname);
}
*func = (svn_ra__init_func_t) symbol;
}
if (compat_func)
{
status = apr_dso_sym(&symbol, dso, compat_funcname);
if (status)
{
return svn_error_wrap_apr(status,
_("'%s' does not define '%s()'"),
libname, compat_funcname);
}
*compat_func = (svn_ra_init_func_t) symbol;
}
}
#endif /* APR_HAS_DSO */
return SVN_NO_ERROR;
}
static svn_error_t *
load_module(fs_init_func_t *initfunc, const char *name, apr_pool_t *pool)
{
*initfunc = NULL;
#if defined(SVN_USE_DSO) && APR_HAS_DSO
{
apr_dso_handle_t *dso;
apr_dso_handle_sym_t symbol;
const char *libname;
const char *funcname;
apr_status_t status;
const char *p;
/* Demand a simple alphanumeric name so that the generated DSO
name is sensible. */
for (p = name; *p; ++p)
if (!svn_ctype_isalnum(*p))
return svn_error_createf(SVN_ERR_FS_UNKNOWN_FS_TYPE, NULL,
_("Invalid name for FS type '%s'"),
name);
libname = apr_psprintf(pool, "libsvn_fs_%s-%d.so.%d",
name, SVN_VER_MAJOR, SVN_SOVERSION);
funcname = apr_psprintf(pool, "svn_fs_%s__init", name);
/* Find/load the specified library. If we get an error, assume
the library doesn't exist. The library will be unloaded when
pool is destroyed. */
SVN_ERR(svn_dso_load(&dso, libname));
if (! dso)
return SVN_NO_ERROR;
/* find the initialization routine */
status = apr_dso_sym(&symbol, dso, funcname);
if (status)
return svn_error_wrap_apr(status, _("'%s' does not define '%s()'"),
libname, funcname);
*initfunc = (fs_init_func_t) symbol;
}
#endif /* APR_HAS_DSO */
return SVN_NO_ERROR;
}
static svn_error_t *
load_module(fs_init_func_t *initfunc, const char *name, apr_pool_t *pool)
{
*initfunc = NULL;
#if defined(SVN_USE_DSO) && APR_HAS_DSO
{
apr_dso_handle_t *dso;
apr_dso_handle_sym_t symbol;
const char *libname;
const char *funcname;
apr_status_t status;
libname = apr_psprintf(pool, "libsvn_fs_%s-%d.so.0",
name, SVN_VER_MAJOR);
funcname = apr_psprintf(pool, "svn_fs_%s__init", name);
/* Find/load the specified library. If we get an error, assume
the library doesn't exist. The library will be unloaded when
pool is destroyed. */
SVN_ERR(svn_dso_load(&dso, libname));
if (! dso)
return SVN_NO_ERROR;
/* find the initialization routine */
status = apr_dso_sym(&symbol, dso, funcname);
if (status)
return svn_error_wrap_apr(status, _("'%s' does not define '%s()'"),
libname, funcname);
*initfunc = (fs_init_func_t) symbol;
}
#endif /* APR_HAS_DSO */
return SVN_NO_ERROR;
}
