grn_id
grn_plugin_open(grn_ctx *ctx, const char *filename)
{
grn_id id;
grn_dl dl;
grn_plugin **plugin = NULL;
CRITICAL_SECTION_ENTER(grn_plugins_lock);
if ((id = grn_hash_get(&grn_gctx, grn_plugins, filename, PATHLEN(filename),
(void **)&plugin))) {
(*plugin)->refcount++;
goto exit;
}
if ((dl = grn_dl_open(filename))) {
if ((id = grn_hash_add(&grn_gctx, grn_plugins, filename, PATHLEN(filename),
(void **)&plugin, NULL))) {
*plugin = GRN_GMALLOCN(grn_plugin, 1);
if (*plugin) {
if (grn_plugin_initialize(ctx, *plugin, dl, id, filename)) {
GRN_GFREE(*plugin);
*plugin = NULL;
}
}
if (!*plugin) {
grn_hash_delete_by_id(&grn_gctx, grn_plugins, id, NULL);
if (grn_dl_close(dl)) {
/* Now, __FILE__ set in plugin is invalid. */
ctx->errline = 0;
ctx->errfile = NULL;
} else {
const char *label;
label = grn_dl_close_error_label();
SERR(label);
}
id = GRN_ID_NIL;
} else {
(*plugin)->refcount = 1;
}
} else {
if (!grn_dl_close(dl)) {
const char *label;
label = grn_dl_close_error_label();
SERR(label);
}
}
} else {
const char *label;
label = grn_dl_open_error_label();
SERR(label);
}
exit:
CRITICAL_SECTION_LEAVE(grn_plugins_lock);
return id;
}
grn_id
grn_plugin_reference(grn_ctx *ctx, const char *filename)
{
grn_id id;
grn_plugin **plugin = NULL;
CRITICAL_SECTION_ENTER(grn_plugins_lock);
id = grn_hash_get(&grn_gctx, grn_plugins, filename, PATHLEN(filename),
(void **)&plugin);
if (plugin) {
(*plugin)->refcount++;
}
CRITICAL_SECTION_LEAVE(grn_plugins_lock);
return id;
}
grn_id
grn_plugin_get(grn_ctx *ctx, const char *filename)
{
return grn_hash_get(ctx, grn_plugins, filename, PATHLEN(filename), NULL);
}
