Function t_start_auto

src/gpre/c_cxx.cpp:3950–4026

//

static void t_start_auto(const act* action,
						 const gpre_req* request,
						 const TEXT* vector,
						 int column,
						 bool test)
{
	const TEXT* trname = request_trans(action, request);

	// find out whether we're using a status vector or not

	const int stat = !strcmp(vector, global_status_name);

	// this is a default transaction, make sure all databases are ready

	begin(column);

	const gpre_dbb* db;
	int count;

	if (gpreGlob.sw_auto)
	{
	    TEXT buffer[256];
		buffer[0] = 0;
		for (count = 0, db = gpreGlob.isc_databases; db; db = db->dbb_next, count++)
		{
		    const TEXT* filename = db->dbb_runtime;
			if (filename || !(db->dbb_flags & DBB_sqlca))
			{
				align(column);
				fprintf(gpreGlob.out_file, "if (!%s", db->dbb_name->sym_string);
				if (stat && buffer[0])
					fprintf(gpreGlob.out_file, " && !%s [1]", vector);
				fprintf(gpreGlob.out_file, ")");
				make_ready(db, filename, vector, (USHORT) (column + INDENT), 0);
				if (buffer[0])
					strcat(buffer, " && ");
				strcat(buffer, db->dbb_name->sym_string);
			}
		}
		if (!buffer[0])
			strcpy(buffer, "1");
		if (test)
			printa(column, "if (%s && !%s)", buffer, trname);
		else
			printa(column, "if (%s)", buffer);
		column += INDENT;
	}
	else
		for (count = 0, db = gpreGlob.isc_databases; db; db = db->dbb_next, count++)
			; // empty loop body

	printa(column, "isc_start_transaction (%s, (FB_API_HANDLE*) &%s, (short) %d",
		   vector, trname, count);

	// Some systems don't like infinitely long lines.  Limit them to 256.

	int remaining = static_cast<int>(256 - column - strlen(vector) - strlen(trname) - 31);