diff options
Diffstat (limited to 'src/backend/utils/error/exc.c')
| -rw-r--r-- | src/backend/utils/error/exc.c | 229 |
1 files changed, 120 insertions, 109 deletions
diff --git a/src/backend/utils/error/exc.c b/src/backend/utils/error/exc.c index 3366996fad1..fd169b94a18 100644 --- a/src/backend/utils/error/exc.c +++ b/src/backend/utils/error/exc.c @@ -1,21 +1,21 @@ /*------------------------------------------------------------------------- * * exc.c-- - * POSTGRES exception handling code. + * POSTGRES exception handling code. * * Copyright (c) 1994, Regents of the University of California * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/utils/error/Attic/exc.c,v 1.15 1997/08/19 21:35:17 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/utils/error/Attic/exc.c,v 1.16 1997/09/07 04:53:16 momjian Exp $ * * NOTE - * XXX this code needs improvement--check for state violations and - * XXX reset after handling an exception. + * XXX this code needs improvement--check for state violations and + * XXX reset after handling an exception. * *------------------------------------------------------------------------- */ -#include <stdio.h> /* XXX use own I/O routines */ +#include <stdio.h> /* XXX use own I/O routines */ #include <errno.h> #include <string.h> @@ -24,24 +24,26 @@ #include "utils/exc.h" #include "storage/ipc.h" -static void ExcUnCaught(Exception *excP, ExcDetail detail, ExcData data, +static void +ExcUnCaught(Exception * excP, ExcDetail detail, ExcData data, ExcMessage message); -static void ExcPrint(Exception *excP, ExcDetail detail, ExcData data, - ExcMessage message); +static void +ExcPrint(Exception * excP, ExcDetail detail, ExcData data, + ExcMessage message); /* * Global Variables */ -static bool ExceptionHandlingEnabled = false; +static bool ExceptionHandlingEnabled = false; -char* ExcFileName = NULL; +char *ExcFileName = NULL; Index ExcLineNumber = 0; -ExcFrame *ExcCurFrameP = NULL; +ExcFrame *ExcCurFrameP = NULL; -static ExcProc *ExcUnCaughtP = NULL; +static ExcProc *ExcUnCaughtP = NULL; -extern char* ProgramName; +extern char *ProgramName; /* * Exported Functions @@ -49,148 +51,157 @@ extern char* ProgramName; /* * EnableExceptionHandling -- - * Enables/disables the exception handling system. + * Enables/disables the exception handling system. * * Note: - * This must be called before any exceptions occur. I.e., call this first! - * This routine will not return if an error is detected. - * This does not follow the usual Enable... protocol. - * This should be merged more closely with the error logging and tracing - * packages. + * This must be called before any exceptions occur. I.e., call this first! + * This routine will not return if an error is detected. + * This does not follow the usual Enable... protocol. + * This should be merged more closely with the error logging and tracing + * packages. * * Exceptions: - * none + * none */ /* * Excection handling should be supported by the language, thus there should * be no need to explicitly enable exception processing. * * This function should probably not be called, ever. Currently it does - * almost nothing. If there is a need for this intialization and checking. + * almost nothing. If there is a need for this intialization and checking. * then this function should be converted to the new-style Enable code and * called by all the other module Enable functions. */ void EnableExceptionHandling(bool on) { - if (on == ExceptionHandlingEnabled) { - /* XXX add logging of failed state */ - exitpg(255); - /* ExitPostgres(FatalExitStatus); */ - } - - if (on) { /* initialize */ - ; - } else { /* cleanup */ - ExcFileName = NULL; - ExcLineNumber = 0; - ExcCurFrameP = NULL; - ExcUnCaughtP = NULL; - } - - ExceptionHandlingEnabled = on; + if (on == ExceptionHandlingEnabled) + { + /* XXX add logging of failed state */ + exitpg(255); + /* ExitPostgres(FatalExitStatus); */ + } + + if (on) + { /* initialize */ + ; + } + else + { /* cleanup */ + ExcFileName = NULL; + ExcLineNumber = 0; + ExcCurFrameP = NULL; + ExcUnCaughtP = NULL; + } + + ExceptionHandlingEnabled = on; } static void -ExcPrint(Exception *excP, - ExcDetail detail, - ExcData data, - ExcMessage message) +ExcPrint(Exception * excP, + ExcDetail detail, + ExcData data, + ExcMessage message) { - extern int errno; - extern int sys_nerr; - + extern int errno; + extern int sys_nerr; + #ifdef lint - data = data; + data = data; #endif - - fflush(stdout); /* In case stderr is buffered */ - -#if 0 - if (ProgramName != NULL && *ProgramName != '\0') - fprintf(stderr, "%s: ", ProgramName); + + fflush(stdout); /* In case stderr is buffered */ + +#if 0 + if (ProgramName != NULL && *ProgramName != '\0') + fprintf(stderr, "%s: ", ProgramName); #endif - - if (message != NULL) - fprintf(stderr, "%s", message); - else if (excP->message != NULL) - fprintf(stderr, "%s", excP->message); - else + + if (message != NULL) + fprintf(stderr, "%s", message); + else if (excP->message != NULL) + fprintf(stderr, "%s", excP->message); + else #ifdef lint - fprintf(stderr, "UNNAMED EXCEPTION 0x%lx", excP); + fprintf(stderr, "UNNAMED EXCEPTION 0x%lx", excP); #else - fprintf(stderr, "UNNAMED EXCEPTION 0x%lx", (long)excP); + fprintf(stderr, "UNNAMED EXCEPTION 0x%lx", (long) excP); #endif - - fprintf(stderr, " (%ld)", detail); - - if (errno > 0 && errno < sys_nerr) - fprintf(stderr, " [%s]", strerror(errno)); - else if (errno != 0) - fprintf(stderr, " [Error %d]", errno); - - fprintf(stderr, "\n"); - - fflush(stderr); + + fprintf(stderr, " (%ld)", detail); + + if (errno > 0 && errno < sys_nerr) + fprintf(stderr, " [%s]", strerror(errno)); + else if (errno != 0) + fprintf(stderr, " [Error %d]", errno); + + fprintf(stderr, "\n"); + + fflush(stderr); } #ifdef NOT_USED -ExcProc * +ExcProc * ExcGetUnCaught(void) { - return (ExcUnCaughtP); + return (ExcUnCaughtP); } + #endif #ifdef NOT_USED -ExcProc * -ExcSetUnCaught(ExcProc *newP) +ExcProc * +ExcSetUnCaught(ExcProc * newP) { - ExcProc *oldP = ExcUnCaughtP; - - ExcUnCaughtP = newP; - - return (oldP); + ExcProc *oldP = ExcUnCaughtP; + + ExcUnCaughtP = newP; + + return (oldP); } + #endif static void -ExcUnCaught(Exception *excP, - ExcDetail detail, - ExcData data, - ExcMessage message) +ExcUnCaught(Exception * excP, + ExcDetail detail, + ExcData data, + ExcMessage message) { - ExcPrint(excP, detail, data, message); - - ExcAbort(excP, detail, data, message); + ExcPrint(excP, detail, data, message); + + ExcAbort(excP, detail, data, message); } void -ExcRaise(Exception *excP, - ExcDetail detail, - ExcData data, - ExcMessage message) +ExcRaise(Exception * excP, + ExcDetail detail, + ExcData data, + ExcMessage message) { - register ExcFrame *efp; - - efp = ExcCurFrameP; - if (efp == NULL) { - if (ExcUnCaughtP != NULL) - (*ExcUnCaughtP)(excP, detail, data, message); - - ExcUnCaught(excP, detail, data, message); - } else { - efp->id = excP; - efp->detail = detail; - efp->data = data; - efp->message = message; - - ExcCurFrameP = efp->link; - + register ExcFrame *efp; + + efp = ExcCurFrameP; + if (efp == NULL) + { + if (ExcUnCaughtP != NULL) + (*ExcUnCaughtP) (excP, detail, data, message); + + ExcUnCaught(excP, detail, data, message); + } + else + { + efp->id = excP; + efp->detail = detail; + efp->data = data; + efp->message = message; + + ExcCurFrameP = efp->link; + #if defined (JMP_BUF) - longjmp(efp->context, 1); + longjmp(efp->context, 1); #else - siglongjmp(efp->context, 1); + siglongjmp(efp->context, 1); #endif - } + } } |