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/*-------------------------------------------------------------------------
* C-Pluff, a plug-in framework for C
* Copyright 2007 Johannes Lehtinen
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*-----------------------------------------------------------------------*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <cpluff.h>
typedef struct plugin_data_t plugin_data_t;
struct plugin_data_t {
cp_context_t *ctx;
const char *str;
};
static void *create(cp_context_t *ctx) {
plugin_data_t *data;
if ((data = malloc(sizeof(plugin_data_t))) != NULL) {
data->ctx = ctx;
data->str = NULL;
}
return data;
}
static int start(void *d) {
plugin_data_t *data = d;
cp_extension_t **exts;
exts = cp_get_extensions_info(data->ctx, "symuser.strings", NULL, NULL);
if (exts != NULL && exts[0] != NULL) {
const char *symname;
symname = cp_lookup_cfg_value(exts[0]->configuration, "@string-symbol");
if (symname != NULL) {
data->str = cp_resolve_symbol(data->ctx, exts[0]->plugin->identifier, symname, NULL);
if (data->str == NULL) {
cp_log(data->ctx, CP_LOG_ERROR, "Could not resolve symbol specified by extension.");
}
} else {
cp_log(data->ctx, CP_LOG_ERROR, "No string-symbol attribute present in extension.");
}
} else {
cp_log(data->ctx, CP_LOG_ERROR, "No extensions available.");
}
if (exts != NULL) {
cp_release_info(data->ctx, exts);
}
if (data->str == NULL) {
return CP_ERR_RUNTIME;
}
return cp_define_symbol(data->ctx, "used_string", (void *) data->str);
}
static void stop(void *d) {
plugin_data_t *data = d;
// Check that the provided string is still available
if (data->str != NULL) {
if (strcmp(data->str, "Provided string")) {
fputs("Provided string is not available in symuser stop function.\n", stderr);
abort();
}
cp_release_symbol(data->ctx, data->str);
}
}
static void destroy(void *d) {
free(d);
}
CP_EXPORT cp_plugin_runtime_t su_runtime = {
create,
start,
stop,
destroy
};
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