mirror of https://github.com/vitalif/openscad
Minor clarification, cleanup file reading
parent
accb71b546
commit
abcd702a68
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@ -5,6 +5,7 @@
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#include "openscad.h"
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#include <stdio.h>
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#include <fstream>
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#include <sstream>
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#include <sys/stat.h>
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@ -12,8 +13,9 @@ ModuleCache *ModuleCache::inst = NULL;
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Module *ModuleCache::evaluate(const std::string &filename)
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{
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Module *cached = NULL;
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Module *lib_mod = NULL;
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// Create cache ID
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struct stat st;
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memset(&st, 0, sizeof(struct stat));
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stat(filename.c_str(), &st);
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@ -22,61 +24,55 @@ Module *ModuleCache::evaluate(const std::string &filename)
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idstream << std::hex << st.st_mtime << "." << st.st_size;
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std::string cache_id = idstream.str();
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// Lookup in cache
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if (this->entries.find(filename) != this->entries.end() &&
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this->entries[filename].cache_id == cache_id) {
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#ifdef DEBUG
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PRINTB("Using cached library: %s (%s)", filename % cache_id);
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#endif
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PRINTB("%s", this->entries[filename].msg);
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cached = &(*this->entries[filename].module);
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lib_mod = &(*this->entries[filename].module);
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}
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if (cached) {
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cached->handleDependencies();
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return cached;
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}
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else {
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// If cache lookup failed (non-existing or old timestamp), compile module
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if (!lib_mod) {
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#ifdef DEBUG
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if (this->entries.find(filename) != this->entries.end()) {
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PRINTB("Recompiling cached library: %s (%s)", filename % cache_id);
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}
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else {
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PRINTB("Compiling library '%s'.", filename);
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}
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#endif
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std::ifstream ifs(filename.c_str());
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if (!ifs.is_open()) {
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PRINTB("WARNING: Can't open library file '%s'\n", filename);
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return NULL;
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}
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std::string text((std::istreambuf_iterator<char>(ifs)), std::istreambuf_iterator<char>());
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print_messages_push();
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cache_entry e = { NULL, cache_id, std::string("WARNING: Library `") + filename + "' tries to recursively use itself!" };
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if (this->entries.find(filename) != this->entries.end())
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delete this->entries[filename].module;
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this->entries[filename] = e;
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std::string pathname = boosty::stringy(fs::path(filename).parent_path());
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lib_mod = dynamic_cast<Module*>(parse(text.c_str(), pathname.c_str(), 0));
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if (lib_mod) {
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this->entries[filename].module = lib_mod;
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this->entries[filename].msg = print_messages_stack.back();
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} else {
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this->entries.erase(filename);
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}
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print_messages_pop();
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}
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FILE *fp = fopen(filename.c_str(), "rt");
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if (!fp) {
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fprintf(stderr, "WARNING: Can't open library file '%s'\n", filename.c_str());
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return NULL;
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}
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std::stringstream text;
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char buffer[513];
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int ret;
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while ((ret = fread(buffer, 1, 512, fp)) > 0) {
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buffer[ret] = 0;
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text << buffer;
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}
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fclose(fp);
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print_messages_push();
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cache_entry e = { NULL, cache_id, std::string("WARNING: Library `") + filename + "' tries to recursively use itself!" };
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if (this->entries.find(filename) != this->entries.end())
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delete this->entries[filename].module;
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this->entries[filename] = e;
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std::string pathname = boosty::stringy(fs::path(filename).parent_path());
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Module *lib_mod = dynamic_cast<Module*>(parse(text.str().c_str(), pathname.c_str(), 0));
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if (lib_mod) {
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this->entries[filename].module = lib_mod;
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this->entries[filename].msg = print_messages_stack.back();
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lib_mod->handleDependencies();
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} else {
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this->entries.erase(filename);
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}
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print_messages_pop();
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if (lib_mod) lib_mod->handleDependencies();
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return lib_mod;
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}
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