# define MAYDAY_CATCH(e) printf("%d %s:%d Catched '%s'\n", \
xbt_getpid(), __FILE__, __LINE__, \
(e).msg \
- ),
+ ),
#else
# define MAYDAY_SAVE(m)
# define MAYDAY_RESTORE(m)
*/
typedef struct {
__ex_mctx_t *ctx_mctx; /* permanent machine context of enclosing try/catch */
- volatile int ctx_caught; /* temporary flag whether exception was caught */
+ int ctx_caught; /* temporary flag whether exception was caught */
volatile xbt_ex_t exception; /* temporary exception storage */
} xbt_running_ctx_t;
#define XBT_RUNNING_CTX_INITIALIZER \
{ NULL, 0, { /* content */ NULL, unknown_error, 0, \
/* throw point*/ 0,NULL, NULL,0, NULL, 0, NULL,\
- /* backtrace */ 0,NULL,{NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL} } }
-#define XBT_RUNNING_CTX_INITIALIZE(ctx) \
- do { \
- (ctx)->ctx_mctx = NULL; \
- (ctx)->ctx_caught = 0; \
- (ctx)->exception.msg = NULL; \
- (ctx)->exception.category = 0; \
- (ctx)->exception.value = 0; \
- (ctx)->exception.remote = 0; \
- (ctx)->exception.host = NULL; \
- (ctx)->exception.procname = NULL; \
- (ctx)->exception.pid = 0; \
- (ctx)->exception.file = NULL; \
- (ctx)->exception.line = 0; \
- (ctx)->exception.func = NULL; \
- (ctx)->exception.bt[0] = NULL; \
- (ctx)->exception.bt[1] = NULL; \
- (ctx)->exception.bt[2] = NULL; \
- (ctx)->exception.bt[3] = NULL; \
- (ctx)->exception.bt[4] = NULL; \
- (ctx)->exception.bt[5] = NULL; \
- (ctx)->exception.bt[6] = NULL; \
- (ctx)->exception.bt[7] = NULL; \
- (ctx)->exception.bt[8] = NULL; \
- (ctx)->exception.bt[9] = NULL; \
- (ctx)->exception.used = 0; \
- (ctx)->exception.bt_strings = NULL; \
- } while (0)
+ /* backtrace */ 0, NULL, /* bt[] */ } }
+
+XBT_PUBLIC_DATA(const xbt_running_ctx_t) __xbt_ex_ctx_initializer;
+#define XBT_RUNNING_CTX_INITIALIZE(ctx) (*(ctx) = __xbt_ex_ctx_initializer)
/* the exception context */
typedef xbt_running_ctx_t *(*xbt_running_ctx_fetcher_t) (void);
XBT_PUBLIC_DATA(xbt_running_ctx_fetcher_t) __xbt_running_ctx_fetch;
-extern xbt_running_ctx_t *__xbt_ex_ctx_default(void);
+XBT_PUBLIC( xbt_running_ctx_t *)__xbt_ex_ctx_default(void);
/* the termination handler */
typedef void (*ex_term_cb_t) (xbt_ex_t *);
XBT_PUBLIC_DATA(ex_term_cb_t) __xbt_ex_terminate;
-extern void __xbt_ex_terminate_default(xbt_ex_t * e);
+XBT_PUBLIC( void )__xbt_ex_terminate_default(xbt_ex_t * e);
/** @brief Introduce a block where exception may be dealed with
* @hideinitializer
} \
else
-#define DO_THROW(running_ctx) \
- /* deal with the exception */ \
- if (running_ctx->ctx_mctx == NULL) \
- __xbt_ex_terminate((xbt_ex_t*)&(running_ctx->exception)); /* not catched */ \
- else \
- __ex_mctx_restore(running_ctx->ctx_mctx); /* catched somewhere */ \
- abort() /* nope, stupid GCC, we won't survive a THROW (this won't be reached) */
+#define DO_THROW(running_ctx) \
+ do { /* deal with the exception */ \
+ xbt_running_ctx_t *ctx = (running_ctx); \
+ if (ctx->ctx_mctx == NULL) \
+ __xbt_ex_terminate((xbt_ex_t*)&(ctx->exception)); /* not catched */ \
+ else \
+ __ex_mctx_restore(ctx->ctx_mctx); /* catched somewhere */ \
+ abort(); /* nope, stupid GCC, we won't survive a THROW */ \
+ /* (this won't be reached) */ \
+ } while(0)
/** @brief Helper macro for THROW and THROWF
* @hideinitializer
*
+ * @param _throw_ctx: the throwing context in which we should construct the exception
* @param c: category code (integer)
* @param v: value (integer)
* @param m: message text
* CLEANUP and CATCH blocks.
*/
-#define _THROW(c,v,m) \
- do { /* change this sequence into one block */ \
- xbt_running_ctx_t *_throw_ctx = __xbt_running_ctx_fetch(); \
- /* build the exception */ \
- _throw_ctx->exception.msg = (m); \
- _throw_ctx->exception.category = (xbt_errcat_t)(c); \
- _throw_ctx->exception.value = (v); \
- _throw_ctx->exception.remote = 0; \
- _throw_ctx->exception.host = (char*)NULL; \
- _throw_ctx->exception.procname = (char*)xbt_procname(); \
- _throw_ctx->exception.pid = xbt_getpid(); \
- _throw_ctx->exception.file = (char*)__FILE__; \
- _throw_ctx->exception.line = __LINE__; \
- _throw_ctx->exception.func = (char*)_XBT_FUNCTION; \
- _throw_ctx->exception.bt_strings = NULL; \
- xbt_backtrace_current( (xbt_ex_t *) &(_throw_ctx->exception) ); \
- DO_THROW(_throw_ctx); \
+#define THROW_PREPARE(_throw_ctx, c, v, m) \
+ /* build the exception */ \
+ _throw_ctx->exception.msg = (m); \
+ _throw_ctx->exception.category = (xbt_errcat_t)(c); \
+ _throw_ctx->exception.value = (v); \
+ _throw_ctx->exception.remote = 0; \
+ _throw_ctx->exception.host = (char*)NULL; \
+ _throw_ctx->exception.procname = (char*)xbt_procname(); \
+ _throw_ctx->exception.pid = xbt_getpid(); \
+ _throw_ctx->exception.file = (char*)__FILE__; \
+ _throw_ctx->exception.line = __LINE__; \
+ _throw_ctx->exception.func = (char*)_XBT_FUNCTION; \
+ _throw_ctx->exception.bt_strings = NULL; \
+ xbt_backtrace_current((xbt_ex_t *)&(_throw_ctx->exception));
+
+#define _THROW(c, v, m) \
+ do { /* change this sequence into one block */ \
+ xbt_running_ctx_t *_throw_ctx = __xbt_running_ctx_fetch(); \
+ THROW_PREPARE(_throw_ctx, c, v, m); \
+ DO_THROW(_throw_ctx); \
} while (0)
/** @brief Builds and throws an exception
/** @brief re-throwing of an already caught exception (ie, pass it to the upper catch block)
* @hideinitializer
*/
-#define RETHROW \
- do { \
- xbt_running_ctx_t *ctx = __xbt_running_ctx_fetch(); \
- if (ctx->ctx_mctx == NULL) \
- __xbt_ex_terminate((xbt_ex_t*)&(ctx->exception)); \
- else \
- __ex_mctx_restore(ctx->ctx_mctx); \
- abort();\
- } while(0)
+#define RETHROW DO_THROW(__xbt_running_ctx_fetch())
/** @brief like THROWF, but adding some details to the message of an existing exception
* @hideinitializer
/** @brief Shows a backtrace of the current location */
XBT_PUBLIC(void) xbt_backtrace_display_current(void);
+/** @brief reimplementation of glibc backtrace based directly on gcc library, without implicit malloc */
+XBT_PUBLIC(int)xbt_backtrace_no_malloc(void**bt, int size);
/** @brief Captures a backtrace for further use */
XBT_PUBLIC(void) xbt_backtrace_current(xbt_ex_t * e);
/** @brief Display a previously captured backtrace */
SG_END_DECL()
-/** @} */
+/** @} */
#endif /* __XBT_EX_H__ */