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#include <stdlib.h>
#include <dlfcn.h>
#include "CPL_library.h"
unsigned long supported_versions[] = {
CPL_VERSION(7,1,0),
CPL_VERSION(7,0,0),
CPL_VERSION(6,6,1),
CPL_VERSION(6,6,0),
CPL_VERSION(6,5,1),
CPL_VERSION(6,5,0),
CPL_VERSION(6,4,1),
CPL_VERSION(6,4,0),
CPL_VERSION(6,3,1),
CPL_VERSION(6,3,0),
CPL_VERSION(6,2,0),
CPL_VERSION(6,1,1),
CPL_VERSION(6,0,1),
CPL_VERSION(6,0,0),
CPL_VERSION(5,3,1),
CPL_VERSION(5,2,0),
CPL_VERSION(5,1,0),
CPL_VERSION(5,0,1),
CPL_VERSION(5,0,0),
CPL_VERSION(4,2,0),
CPL_VERSION(4,1,0),
CPL_VERSION(4,0,1),
CPL_VERSION(4,0,0),
0
};
static cpl_library_t **libraries = NULL;
/* This module provides all needed functions to run a recipe from the
framework. These functions are extracted from the recipe shared lib
(resp. the CPL linked to that) by their names. I checked that the API
didn't change from CPL 4.0 which is now the minimal supported version here.
Since some constants changed over the time, all used constants are
also included in the structure. The constants are set directly depending on
the CPL version number.
Note that beta releases have to be taken very cautiously here since they
may contain incompatible changes here.
*/
cpl_library_t *create_library(const char *fname) {
void *handle = dlopen(fname, RTLD_LAZY);
if (handle == NULL) {
return NULL;
}
char *error = dlerror();
typeof(cpl_init) *init = dlsym(handle, "cpl_init");
error = dlerror();
if (error != NULL) {
dlclose(handle);
return NULL;
}
if (libraries == NULL) {
libraries = malloc(sizeof(cpl_library_t *));
libraries[0] = NULL;
}
int i;
for (i = 0; libraries[i] != NULL; i++) {
if (init == libraries[i]->init) {
dlclose(handle);
return libraries[i];
}
}
cpl_library_t *cpl = malloc(sizeof(cpl_library_t));
cpl->init = init;
cpl->init(CPL_INIT_DEFAULT);
typeof(cpl_version_get_major) *get_major = dlsym(handle,
"cpl_version_get_major");
typeof(cpl_version_get_minor) *get_minor = dlsym(handle,
"cpl_version_get_minor");
typeof(cpl_version_get_micro) *get_micro = dlsym(handle,
"cpl_version_get_micro");
cpl->version = CPL_VERSION(get_major(), get_minor(), get_micro());
cpl->end = dlsym(handle, "cpl_end");
cpl->version_get_version = dlsym(handle, "cpl_version_get_version");
cpl->get_description = dlsym(handle, "cpl_get_description");
cpl->memory_dump = dlsym(handle, "cpl_memory_dump");
cpl->memory_is_empty = dlsym(handle, "cpl_memory_is_empty");
cpl->free = dlsym(handle, "cpl_free");
cpl->plugin_get_author = dlsym(handle, "cpl_plugin_get_author");
cpl->plugin_get_copyright = dlsym(handle, "cpl_plugin_get_copyright");
cpl->plugin_get_deinit = dlsym(handle, "cpl_plugin_get_deinit");
cpl->plugin_get_description = dlsym(handle, "cpl_plugin_get_description");
cpl->plugin_get_email = dlsym(handle, "cpl_plugin_get_email");
cpl->plugin_get_exec = dlsym(handle, "cpl_plugin_get_exec");
cpl->plugin_get_init = dlsym(handle, "cpl_plugin_get_init");
cpl->plugin_get_name = dlsym(handle, "cpl_plugin_get_name");
cpl->plugin_get_synopsis = dlsym(handle, "cpl_plugin_get_synopsis");
cpl->plugin_get_version = dlsym(handle, "cpl_plugin_get_version");
cpl->plugin_get_version_string = dlsym(handle, "cpl_plugin_get_version_string");
cpl->pluginlist_delete = dlsym(handle, "cpl_pluginlist_delete");
cpl->pluginlist_find = dlsym(handle, "cpl_pluginlist_find");
cpl->pluginlist_get_first = dlsym(handle, "cpl_pluginlist_get_first");
cpl->pluginlist_get_next = dlsym(handle, "cpl_pluginlist_get_next");
cpl->pluginlist_new = dlsym(handle, "cpl_pluginlist_new");
cpl->dfs_update_product_header = dlsym(handle, "cpl_dfs_update_product_header");
if (cpl->version >= CPL_VERSION(6,5,0)) {
cpl->dfs_sign_products = dlsym(handle, "cpl_dfs_sign_products");
} else {
cpl->dfs_sign_products = NULL;
}
cpl->error_get_code = dlsym(handle, "cpl_error_get_code");
cpl->error_get_file = dlsym(handle, "cpl_error_get_file");
cpl->error_get_function = dlsym(handle, "cpl_error_get_function");
cpl->error_get_line = dlsym(handle, "cpl_error_get_line");
cpl->error_get_message = dlsym(handle, "cpl_error_get_message");
cpl->error_reset = dlsym(handle, "cpl_error_reset");
cpl->error_set_message_macro = dlsym(handle, "cpl_error_set_message_macro");
cpl->errorstate_dump = dlsym(handle, "cpl_errorstate_dump");
cpl->errorstate_get = dlsym(handle, "cpl_errorstate_get");
cpl->frame_get_filename = dlsym(handle, "cpl_frame_get_filename");
cpl->frame_get_group = dlsym(handle, "cpl_frame_get_group");
cpl->frame_get_tag = dlsym(handle, "cpl_frame_get_tag");
cpl->frame_new = dlsym(handle, "cpl_frame_new");
cpl->frame_set_filename = dlsym(handle, "cpl_frame_set_filename");
cpl->frame_set_tag = dlsym(handle, "cpl_frame_set_tag");
cpl->frameset_delete = dlsym(handle, "cpl_frameset_delete");
if (cpl->version >= CPL_VERSION(6,3,0)) {
cpl->frameset_get_position = dlsym(handle, "cpl_frameset_get_position");
} else { // fallback variant: not threadsafe, deprecated after 6.2
cpl->frameset_get_position = dlsym(handle, "cpl_frameset_get_frame");
}
cpl->frameset_get_size = dlsym(handle, "cpl_frameset_get_size");
cpl->frameset_insert = dlsym(handle, "cpl_frameset_insert");
cpl->frameset_new = dlsym(handle, "cpl_frameset_new");
cpl->msg_error = dlsym(handle, "cpl_msg_error");
cpl->msg_set_level = dlsym(handle, "cpl_msg_set_level");
cpl->msg_set_log_level = dlsym(handle, "cpl_msg_set_log_level");
cpl->msg_set_log_name = dlsym(handle, "cpl_msg_set_log_name");
cpl->msg_stop_log = dlsym(handle, "cpl_msg_stop_log");
cpl->parameter_get_alias = dlsym(handle, "cpl_parameter_get_alias");
cpl->parameter_get_class = dlsym(handle, "cpl_parameter_get_class");
cpl->parameter_get_context = dlsym(handle, "cpl_parameter_get_context");
cpl->parameter_get_default_bool = dlsym(handle, "cpl_parameter_get_default_bool");
cpl->parameter_get_default_double = dlsym(handle, "cpl_parameter_get_default_double");
cpl->parameter_get_default_int = dlsym(handle, "cpl_parameter_get_default_int");
cpl->parameter_get_default_string = dlsym(handle, "cpl_parameter_get_default_string");
cpl->parameter_get_enum_double = dlsym(handle, "cpl_parameter_get_enum_double");
cpl->parameter_get_enum_int = dlsym(handle, "cpl_parameter_get_enum_int");
cpl->parameter_get_enum_size = dlsym(handle, "cpl_parameter_get_enum_size");
cpl->parameter_get_enum_string = dlsym(handle, "cpl_parameter_get_enum_string");
cpl->parameter_get_help = dlsym(handle, "cpl_parameter_get_help");
cpl->parameter_get_name = dlsym(handle, "cpl_parameter_get_name");
cpl->parameter_get_range_max_double = dlsym(handle, "cpl_parameter_get_range_max_double");
cpl->parameter_get_range_max_int = dlsym(handle, "cpl_parameter_get_range_max_int");
cpl->parameter_get_range_min_double = dlsym(handle, "cpl_parameter_get_range_min_double");
cpl->parameter_get_range_min_int = dlsym(handle, "cpl_parameter_get_range_min_int");
cpl->parameter_get_type = dlsym(handle, "cpl_parameter_get_type");
cpl->parameter_set_bool = dlsym(handle, "cpl_parameter_set_bool");
cpl->parameter_set_double = dlsym(handle, "cpl_parameter_set_double");
cpl->parameter_set_int = dlsym(handle, "cpl_parameter_set_int");
cpl->parameter_set_string = dlsym(handle, "cpl_parameter_set_string");
cpl->parameter_is_enabled = dlsym(handle, "cpl_parameter_is_enabled");
cpl->parameterlist_delete = dlsym(handle, "cpl_parameterlist_delete");
cpl->parameterlist_find = dlsym(handle, "cpl_parameterlist_find");
cpl->parameterlist_get_first = dlsym(handle, "cpl_parameterlist_get_first");
cpl->parameterlist_get_next = dlsym(handle, "cpl_parameterlist_get_next");
cpl->parameterlist_get_size = dlsym(handle, "cpl_parameterlist_get_size");
cpl->recipeconfig_delete = dlsym(handle, "cpl_recipeconfig_delete");
cpl->recipeconfig_get_inputs = dlsym(handle, "cpl_recipeconfig_get_inputs");
cpl->recipeconfig_get_max_count = dlsym(handle, "cpl_recipeconfig_get_max_count");
cpl->recipeconfig_get_min_count = dlsym(handle, "cpl_recipeconfig_get_min_count");
cpl->recipeconfig_get_outputs = dlsym(handle, "cpl_recipeconfig_get_outputs");
cpl->recipeconfig_get_tags = dlsym(handle, "cpl_recipeconfig_get_tags");
error = dlerror();
if (error != NULL) {
dlclose(handle);
free(cpl);
return NULL;
}
cpl->get_recipeconfig = dlsym(handle, "muse_processing_get_recipeconfig");
dlerror();
cpl->TYPE_BOOL = CPL_TYPE_BOOL;
cpl->TYPE_INT = CPL_TYPE_INT;
cpl->TYPE_DOUBLE = CPL_TYPE_DOUBLE;
cpl->TYPE_STRING = CPL_TYPE_STRING;
cpl->is_supported = UNKNOWN_VERSION;
for (i = 0; supported_versions[i] != 0; i++) {
if (cpl->version == supported_versions[i]) {
cpl->is_supported = KNOWN_VERSION;
break;
}
if (CPL_VERSION_MAJOR_CODE(cpl->version) ==
CPL_VERSION_MAJOR_CODE(supported_versions[i])) {
cpl->is_supported = KNOWN_MAJOR;
}
}
/* Between 5.3.1 and 6.0, the cpl_type enum changed.
http://upstream-tracker.org/compat_reports/cpl/5.3.1_to_6.0/abi_compat_report.html#Medium_Risk_Problems
for these changes; the numbers were taken from there. According to
upstream-tracker, this seems to be the only relevant API change between
4.0.0 and 6.2.0.
Also the cpl_size is newly introduced (former it was int), in
cpl_frame *cpl_frameset_get_frame(cpl_frameset *self, cpl_size position);
cpl_size cpl_frameset_get_size(const cpl_frameset *self);
cpl_size cpl_parameterlist_get_size(const cpl_parameterlist *self);
cpl_size cpl_recipeconfig_get_min_count(const cpl_recipeconfig* self,
const char* tag, const char* input);
cpl_size cpl_recipeconfig_get_max_count(const cpl_recipeconfig* self,
const char* tag, const char* input);
Currently, we just ignore this :-)
*/
if (cpl->version < CPL_VERSION(6,0,0)) {
cpl->TYPE_INT = (1 << 8);
cpl->TYPE_DOUBLE = (1 << 13);
}
libraries = realloc(libraries, sizeof(cpl_library_t *) * (i+2));
libraries[i] = cpl;
libraries[i+1] = NULL;
return cpl;
}
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