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-rw-r--r--edify/expr.h30
1 files changed, 20 insertions, 10 deletions
diff --git a/edify/expr.h b/edify/expr.h
index a9ed2f9c5..886347991 100644
--- a/edify/expr.h
+++ b/edify/expr.h
@@ -19,12 +19,9 @@
#include <unistd.h>
+#include "error_code.h"
#include "yydefs.h"
-#ifdef __cplusplus
-extern "C" {
-#endif
-
#define MAX_STRING_LEN 1024
typedef struct Expr Expr;
@@ -43,6 +40,17 @@ typedef struct {
// Should be NULL initially, will be either NULL or a malloc'd
// pointer after Evaluate() returns.
char* errmsg;
+
+ // error code indicates the type of failure (e.g. failure to update system image)
+ // during the OTA process.
+ ErrorCode error_code = kNoError;
+
+ // cause code provides more detailed reason of an OTA failure (e.g. fsync error)
+ // in addition to the error code.
+ CauseCode cause_code = kNoCause;
+
+ bool is_retry = false;
+
} State;
#define VAL_STRING 1 // data will be NULL-terminated; size doesn't count null
@@ -59,7 +67,7 @@ typedef Value* (*Function)(const char* name, State* state,
struct Expr {
Function fn;
- char* name;
+ const char* name;
int argc;
Expr** argv;
int start, end;
@@ -156,7 +164,13 @@ Value** ReadValueVarArgs(State* state, int argc, Expr* argv[]);
// Use printf-style arguments to compose an error message to put into
// *state. Returns NULL.
-Value* ErrorAbort(State* state, const char* format, ...) __attribute__((format(printf, 2, 3)));
+Value* ErrorAbort(State* state, const char* format, ...)
+ __attribute__((format(printf, 2, 3), deprecated));
+
+// ErrorAbort has an optional (but recommended) argument 'cause_code'. If the cause code
+// is set, it will be logged into last_install and provides reason of OTA failures.
+Value* ErrorAbort(State* state, CauseCode cause_code, const char* format, ...)
+ __attribute__((format(printf, 3, 4)));
// Wrap a string into a Value, taking ownership of the string.
Value* StringValue(char* str);
@@ -166,8 +180,4 @@ void FreeValue(Value* v);
int parse_string(const char* str, Expr** root, int* error_count);
-#ifdef __cplusplus
-} // extern "C"
-#endif
-
#endif // _EXPRESSION_H