W5

src/lib/sys.cpp

@@ -14,6 +14,8 @@ void uce_host_log(int level, const char* buf, size_t len);
 // cwd convention); file_read uses the length-query convention
 int uce_host_file_exists(const char* path, size_t path_len, const char* current, size_t current_len);
 size_t uce_host_file_read(const char* path, size_t path_len, const char* current, size_t current_len, char* buf, size_t cap);
+int uce_host_file_write(const char* path, size_t path_len, const char* current, size_t current_len, const char* content, size_t content_len, int append);
+void uce_host_file_unlink(const char* path, size_t path_len, const char* current, size_t current_len);
 }
 
 static String wasm_current_unit_file()
@@ -50,13 +52,25 @@ String file_get_contents(String file_name)
 	content.resize(got <= required ? got : 0);
 	return(content);
 }
-bool file_put_contents(String file_name, String content) { (void)file_name; (void)content; return(false); }
-bool file_append_contents(String file_name, String content) { (void)file_name; (void)content; return(false); }
+bool file_put_contents(String file_name, String content)
+{
+	String current = wasm_current_unit_file();
+	return(uce_host_file_write(file_name.data(), file_name.size(), current.data(), current.size(), content.data(), content.size(), 0) != 0);
+}
+bool file_append_contents(String file_name, String content)
+{
+	String current = wasm_current_unit_file();
+	return(uce_host_file_write(file_name.data(), file_name.size(), current.data(), current.size(), content.data(), content.size(), 1) != 0);
+}
 String cwd_get() { return("/"); }
 void cwd_set(String path) { (void)path; }
 String process_start_directory() { return("/"); }
 time_t file_mtime(String file_name) { (void)file_name; return(0); }
-void file_unlink(String file_name) { (void)file_name; }
+void file_unlink(String file_name)
+{
+	String current = wasm_current_unit_file();
+	uce_host_file_unlink(file_name.data(), file_name.size(), current.data(), current.size());
+}
 String expand_path(String path, String relative_to_path) { return(path_join(relative_to_path, path)); }
 StringList ls(String dir) { (void)dir; return(StringList()); }
 u64 config_map_u64(StringMap& cfg, String key, u64 fallback) { String raw = first(cfg[key], std::to_string(fallback)); char* end = 0; unsigned long long v = strtoull(raw.c_str(), &end, 10); return(end && *end == 0 ? (u64)v : fallback); }