fis-gtm/sr_unix/send_msg.c

121 lines
4.2 KiB
C

/****************************************************************
* *
* Copyright 2001, 2012 Fidelity Information Services, Inc *
* *
* This source code contains the intellectual property *
* of its copyright holder(s), and is made available *
* under a license. If you do not know the terms of *
* the license, please stop and do not read further. *
* *
****************************************************************/
#include "mdef.h"
#include <stdarg.h>
#include "gtmmsg.h"
#include "error.h"
#include "fao_parm.h"
#include "util.h"
#include "util_out_print_vaparm.h"
#include "send_msg.h"
#include "caller_id.h"
#include "gtmsiginfo.h"
/* database/replication related includes due to anticipatory freeze */
#include "gdsroot.h"
#include "gdsbt.h"
#include "gdsfhead.h"
#include "filestruct.h"
#include "repl_msg.h" /* for gtmsource.h */
#include "gtmsource.h" /* for anticipatory_freeze.h */
#include "anticipatory_freeze.h" /* for SET_ANTICIPATORY_FREEZE_IF_NEEDED */
GBLREF bool caller_id_flag;
GBLREF volatile int4 exit_state;
GBLREF volatile boolean_t timer_in_handler;
GBLREF jnlpool_addrs jnlpool;
#ifdef DEBUG
static uint4 nesting_level = 0;
#endif
/*
** WARNING: For chained error messages, all messages MUST be followed by an fao count;
** ======= zero MUST be specified if there are no parameters.
*/
/* This routine is a variation on the unix version of rts_error, and has an identical interface */
void send_msg(int arg_count, ...)
{
va_list var;
int dummy, fao_actual, fao_count, i, msg_id;
char msg_buffer[1024];
mstr msg_string;
char *save_util_outptr;
va_list save_last_va_list_ptr;
boolean_t util_copy_saved = FALSE;
boolean_t freeze_set = FALSE;
DCL_THREADGBL_ACCESS;
SETUP_THREADGBL_ACCESS;
/* Since send_msg uses a global variable buffer, reentrant calls to send_msg will use the same buffer.
* Ensure we never overwrite an under-construction send_msg buffer with a nested send_msg call. The
* only exception to this is if the nested call to send_msg is done by exit handling code in which case
* the latest send_msg call prevails and it is ok since we will never return to the original send_msg()
* call again. Detect if ever this assmption gets violated with an assert.
*/
assert((0 == nesting_level) || ((2 > nesting_level) && timer_in_handler) || (EXIT_IMMED == exit_state));
DEBUG_ONLY(nesting_level++;)
VAR_START(var, arg_count);
assert(arg_count > 0);
if ((NULL != TREF(util_outptr)) && (TREF(util_outptr) != TREF(util_outbuff_ptr)))
{
SAVE_UTIL_OUT_BUFFER(save_util_outptr, save_last_va_list_ptr, util_copy_saved);
}
util_out_print(NULL, RESET);
for (;;)
{
msg_id = (int) va_arg(var, VA_ARG_TYPE);
SET_ANTICIPATORY_FREEZE_IF_NEEDED(msg_id, freeze_set);
--arg_count;
msg_string.addr = msg_buffer;
msg_string.len = SIZEOF(msg_buffer);
gtm_getmsg(msg_id, &msg_string);
if (0 < arg_count)
{
fao_actual = (int) va_arg(var, VA_ARG_TYPE);
--arg_count;
fao_count = fao_actual;
if (fao_count > MAX_FAO_PARMS)
{
assert(FALSE);
fao_count = MAX_FAO_PARMS;
}
} else
fao_actual = fao_count = 0;
util_out_print_vaparm(msg_string.addr, NOFLUSH, var, fao_count);
va_end(var); /* need this before used as dest in copy */
VAR_COPY(var, TREF(last_va_list_ptr));
va_end(TREF(last_va_list_ptr));
arg_count -= fao_count;
if (0 >= arg_count)
{
if (caller_id_flag)
PRINT_CALLERID;
break;
}
util_out_print("!/", NOFLUSH);
}
va_end(var);
util_out_print(NULL, OPER);
RESTORE_UTIL_OUT_BUFFER(save_util_outptr, save_last_va_list_ptr, util_copy_saved);
/* it has been suggested that this would be a place to check a view_debugN
* and conditionally enter a "forever" loop on wcs_sleep for unix debugging
*/
DEBUG_ONLY(nesting_level--;)
REPORT_INSTANCE_FROZEN(freeze_set);
}