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/*
** aff4_errors.h
**
** Made by mic
** Login <mic@laptop>
**
** Started on Sat Mar 6 20:54:25 2010 mic
** Last update Sat Mar 6 20:54:25 2010 mic
*/
#ifndef AFF4_ERRORS_H_
# define AFF4_ERRORS_H_
// Some helpful little things
#define ERROR_BUFFER_SIZE 1024
/** This is used for error reporting. This is similar to the way
python does it, i.e. we set the error flag and return NULL.
*/
enum _error_type {
EZero,EGeneric,EOverflow,EWarning,
EUnderflow,EIOError, ENoMemory, EInvalidParameter, ERuntimeError, EKeyError,
// Reserved for impossible conditions
EProgrammingError
};
void *raise_errors(enum _error_type t, char *string, ...);
/** We only set the error state if its not already set */
#define RaiseError(t, message, ...) \
if(*aff4_get_current_error(NULL) == EZero) { \
raise_errors(t, "%s: (%s:%d) " message, __FUNCTION__, __FILE__, __LINE__, ## __VA_ARGS__); \
};
#define LogWarnings(format, ...) \
do { \
RaiseError(EWarning, format, ## __VA_ARGS__); \
PrintError(); \
} while(0);
#define ClearError() \
do {*aff4_get_current_error(NULL) = EZero;} while(0);
#define PrintError() \
do {char *error_str; if(*aff4_get_current_error(&error_str)) fprintf(stdout, "%s", error_str); fflush(stdout); ClearError(); }while(0);
#define CheckError(error) \
(*aff4_get_current_error(NULL) == error)
/** The current error state is returned by this function.
This is done in a thread safe manner.
*/
enum _error_type *aff4_get_current_error(char **error_str);
// These macros are used when we need to do something which might
// change the error state on the error path of a function.
#define PUSH_ERROR_STATE { enum _error_type *tmp_error_p = aff4_get_current_error(NULL); enum _error_type tmp_error = *tmp_error_p; enum _error_type exception __attribute__((unused));
#define POP_ERROR_STATE *tmp_error_p = tmp_error;};
void error_init();
#endif /* !AFF4_ERRORS_H_ */
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