X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/66b0686fe441796325c3b5738b1b880d15ce1ea6..d2ec5755ee8a63d63c5ae6c742133791cbdd2475:/include/xbt/ex.h diff --git a/include/xbt/ex.h b/include/xbt/ex.h index 50ef63e9fe..909af2c3fb 100644 --- a/include/xbt/ex.h +++ b/include/xbt/ex.h @@ -55,17 +55,17 @@ SG_BEGIN_DECL() # include #include # define MAYDAY_SAVE(m) printf("%d %s:%d save %p\n", \ - (*xbt_getpid)(),__FILE__,__LINE__, \ + xbt_getpid(), __FILE__, __LINE__, \ (m)->jb \ ), # define MAYDAY_RESTORE(m) printf("%d %s:%d restore %p\n", \ - (*xbt_getpid)(),__FILE__,__LINE__, \ + xbt_getpid(), __FILE__, __LINE__, \ (m)->jb \ ), # define MAYDAY_CATCH(e) printf("%d %s:%d Catched '%s'\n", \ - (*xbt_getpid)(),__FILE__,__LINE__, \ + xbt_getpid(), __FILE__, __LINE__, \ (e).msg \ - ), + ), #else # define MAYDAY_SAVE(m) # define MAYDAY_RESTORE(m) @@ -262,7 +262,8 @@ typedef enum { cancel_error, /**< an action was canceled */ thread_error, /**< error while [un]locking */ host_error, /**< host failed */ - tracing_error /**< error during the simulation tracing */ + tracing_error, /**< error during the simulation tracing */ + io_error /**< disk or file error */ } xbt_errcat_t; XBT_PUBLIC(const char *) xbt_ex_catname(xbt_errcat_t cat); @@ -296,7 +297,7 @@ typedef struct { */ 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; @@ -304,44 +305,20 @@ typedef struct { #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 @@ -414,17 +391,21 @@ extern void __xbt_ex_terminate_default(xbt_ex_t * e); } \ 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 @@ -440,23 +421,26 @@ extern void __xbt_ex_terminate_default(xbt_ex_t * e); * 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 @@ -481,15 +465,7 @@ extern void __xbt_ex_terminate_default(xbt_ex_t * e); /** @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 @@ -508,6 +484,8 @@ XBT_PUBLIC(void) xbt_ex_free(xbt_ex_t e); /** @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 */ @@ -538,5 +516,5 @@ XBT_PUBLIC(void) xbt_backtrace_display(xbt_ex_t * e); SG_END_DECL() -/** @} */ +/** @} */ #endif /* __XBT_EX_H__ */