common header file for cpp contracts

plugin/dapp/wasm/contracts/common.h

+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stddef.h>
+#include <stdint.h>
+
+void setStateDB(const char* key, size_t k_len, const char* value, size_t v_len);
+size_t getStateDBSize(const char* key, size_t k_len);
+size_t getStateDB(const char* key, size_t k_len, char* value, size_t v_len);
+
+void setLocalDB(const char* key, size_t k_len, const char* value, size_t v_len);
+size_t getLocalDBSize(const char* key, size_t k_len);
+size_t getLocalDB(const char* key, size_t k_len, char* value, size_t v_len);
+
+int64_t getBalance(const char* addr, size_t addr_len, const char* exec_addr, size_t exec_len);
+int64_t getFronzen(const char* addr, size_t addr_len, const char* exec_addr, size_t exec_len);
+
+void execAddress(const char* name, size_t name_len, const char* addr, size_t addr_len);
+
+int transfer(const char* from_addr, size_t from_len, const char* to_addr, size_t to_len, int64_t amount);
+int transferToExec(const char* from_addr, size_t from_len, const char* exec_addr, size_t exec_len, int64_t amount);
+int transferWithdraw(const char* from_addr, size_t from_len, const char* exec_addr, size_t exec_len, int64_t amount);
+
+int execFrozen(const char* addr, size_t addr_len, int64_t amount);
+int execActive(const char* addr, size_t addr_len, int64_t amount);
+int execTransfer(const char* from_addr, size_t from_len, const char* to_addr, size_t to_len, int64_t amount);
+int execTransferFrozen(const char* from_addr, size_t from_len, const char* to_addr, size_t to_len, int64_t amount);
+
+void getFrom(const char* from_addr, size_t from_len);
+int64_t getHeight();
+int64_t getRandom();
+void sha256(const char* data, size_t data_len, char* sum, size_t sum_len);
+void printlog(const char* log, size_t len);
+void printint(int64_t n);
+
+#ifdef __cplusplus
+}
+#endif
+
+
+inline size_t string_size(const char* s) {
+    size_t l = 0;
+    for (const char* tmp=s;*tmp!='\0';tmp++) {
+        l++;
+    }
+    return l;
+}
+
+
+
+
+