337 lines
12 KiB
C++
337 lines
12 KiB
C++
/*
|
|
* Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
*
|
|
* This code is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 only, as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This code is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
* version 2 for more details (a copy is included in the LICENSE file that
|
|
* accompanied this code).
|
|
*
|
|
* You should have received a copy of the GNU General Public License version
|
|
* 2 along with this work; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
* or visit www.oracle.com if you need additional information or have any
|
|
* questions.
|
|
*
|
|
*/
|
|
|
|
#include "precompiled.hpp"
|
|
#include "classfile/javaClasses.hpp"
|
|
#include "runtime/arguments.hpp"
|
|
#include "runtime/commandLineFlagRangeList.hpp"
|
|
#include "runtime/java.hpp"
|
|
#include "runtime/jniHandles.hpp"
|
|
#include "services/writeableFlags.hpp"
|
|
|
|
#define TEMP_BUF_SIZE 80
|
|
|
|
static void buffer_concat(char* buffer, const char* src) {
|
|
strncat(buffer, src, TEMP_BUF_SIZE - 1 - strlen(buffer));
|
|
}
|
|
|
|
static void print_flag_error_message_bounds(const char* name, char* buffer) {
|
|
CommandLineFlagRange* range = CommandLineFlagRangeList::find(name);
|
|
if (range != NULL) {
|
|
buffer_concat(buffer, "must have value in range ");
|
|
|
|
stringStream stream;
|
|
range->print(&stream);
|
|
const char* range_string = stream.as_string();
|
|
size_t j = strlen(buffer);
|
|
for (size_t i=0; j<TEMP_BUF_SIZE-1; i++) {
|
|
if (range_string[i] == '\0') {
|
|
break;
|
|
} else if (range_string[i] != ' ') {
|
|
buffer[j] = range_string[i];
|
|
j++;
|
|
}
|
|
}
|
|
buffer[j] = '\0';
|
|
}
|
|
}
|
|
|
|
static void print_flag_error_message_if_needed(Flag::Error error, const char* name, FormatBuffer<80>& err_msg) {
|
|
if (error == Flag::SUCCESS) {
|
|
return;
|
|
}
|
|
|
|
char buffer[TEMP_BUF_SIZE] = {'\0'};
|
|
if ((error != Flag::MISSING_NAME) && (name != NULL)) {
|
|
buffer_concat(buffer, name);
|
|
buffer_concat(buffer, " error: ");
|
|
} else {
|
|
buffer_concat(buffer, "Error: ");
|
|
}
|
|
switch (error) {
|
|
case Flag::MISSING_NAME:
|
|
buffer_concat(buffer, "flag name is missing."); break;
|
|
case Flag::MISSING_VALUE:
|
|
buffer_concat(buffer, "parsing the textual form of the value."); break;
|
|
case Flag::NON_WRITABLE:
|
|
buffer_concat(buffer, "flag is not writeable."); break;
|
|
case Flag::OUT_OF_BOUNDS:
|
|
print_flag_error_message_bounds(name, buffer); break;
|
|
case Flag::VIOLATES_CONSTRAINT:
|
|
buffer_concat(buffer, "value violates its flag's constraint."); break;
|
|
case Flag::INVALID_FLAG:
|
|
buffer_concat(buffer, "there is no flag with the given name."); break;
|
|
case Flag::ERR_OTHER:
|
|
buffer_concat(buffer, "other, unspecified error related to setting the flag."); break;
|
|
case Flag::SUCCESS:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
err_msg.print("%s", buffer);
|
|
}
|
|
|
|
// set a boolean global flag
|
|
Flag::Error WriteableFlags::set_bool_flag(const char* name, const char* arg, Flag::Flags origin, FormatBuffer<80>& err_msg) {
|
|
if ((strcasecmp(arg, "true") == 0) || (*arg == '1' && *(arg + 1) == 0)) {
|
|
return set_bool_flag(name, true, origin, err_msg);
|
|
} else if ((strcasecmp(arg, "false") == 0) || (*arg == '0' && *(arg + 1) == 0)) {
|
|
return set_bool_flag(name, false, origin, err_msg);
|
|
}
|
|
err_msg.print("flag value must be a boolean (1/0 or true/false)");
|
|
return Flag::WRONG_FORMAT;
|
|
}
|
|
|
|
Flag::Error WriteableFlags::set_bool_flag(const char* name, bool value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
|
|
Flag::Error err = CommandLineFlags::boolAtPut(name, &value, origin);
|
|
print_flag_error_message_if_needed(err, name, err_msg);
|
|
return err;
|
|
}
|
|
|
|
// set a int global flag
|
|
Flag::Error WriteableFlags::set_int_flag(const char* name, const char* arg, Flag::Flags origin, FormatBuffer<80>& err_msg) {
|
|
int value;
|
|
|
|
if (sscanf(arg, "%d", &value)) {
|
|
return set_int_flag(name, value, origin, err_msg);
|
|
}
|
|
err_msg.print("flag value must be an integer");
|
|
return Flag::WRONG_FORMAT;
|
|
}
|
|
|
|
Flag::Error WriteableFlags::set_int_flag(const char* name, int value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
|
|
Flag::Error err = CommandLineFlags::intAtPut(name, &value, origin);
|
|
print_flag_error_message_if_needed(err, name, err_msg);
|
|
return err;
|
|
}
|
|
|
|
// set a uint global flag
|
|
Flag::Error WriteableFlags::set_uint_flag(const char* name, const char* arg, Flag::Flags origin, FormatBuffer<80>& err_msg) {
|
|
uint value;
|
|
|
|
if (sscanf(arg, "%u", &value)) {
|
|
return set_uint_flag(name, value, origin, err_msg);
|
|
}
|
|
err_msg.print("flag value must be an unsigned integer");
|
|
return Flag::WRONG_FORMAT;
|
|
}
|
|
|
|
Flag::Error WriteableFlags::set_uint_flag(const char* name, uint value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
|
|
Flag::Error err = CommandLineFlags::uintAtPut(name, &value, origin);
|
|
print_flag_error_message_if_needed(err, name, err_msg);
|
|
return err;
|
|
}
|
|
|
|
// set a intx global flag
|
|
Flag::Error WriteableFlags::set_intx_flag(const char* name, const char* arg, Flag::Flags origin, FormatBuffer<80>& err_msg) {
|
|
intx value;
|
|
|
|
if (sscanf(arg, INTX_FORMAT, &value)) {
|
|
return set_intx_flag(name, value, origin, err_msg);
|
|
}
|
|
err_msg.print("flag value must be an integer");
|
|
return Flag::WRONG_FORMAT;
|
|
}
|
|
|
|
Flag::Error WriteableFlags::set_intx_flag(const char* name, intx value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
|
|
Flag::Error err = CommandLineFlags::intxAtPut(name, &value, origin);
|
|
print_flag_error_message_if_needed(err, name, err_msg);
|
|
return err;
|
|
}
|
|
|
|
// set a uintx global flag
|
|
Flag::Error WriteableFlags::set_uintx_flag(const char* name, const char* arg, Flag::Flags origin, FormatBuffer<80>& err_msg) {
|
|
uintx value;
|
|
|
|
if (sscanf(arg, UINTX_FORMAT, &value)) {
|
|
return set_uintx_flag(name, value, origin, err_msg);
|
|
}
|
|
err_msg.print("flag value must be an unsigned integer");
|
|
return Flag::WRONG_FORMAT;
|
|
}
|
|
|
|
Flag::Error WriteableFlags::set_uintx_flag(const char* name, uintx value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
|
|
Flag::Error err = CommandLineFlags::uintxAtPut(name, &value, origin);
|
|
print_flag_error_message_if_needed(err, name, err_msg);
|
|
return err;
|
|
}
|
|
|
|
// set a uint64_t global flag
|
|
Flag::Error WriteableFlags::set_uint64_t_flag(const char* name, const char* arg, Flag::Flags origin, FormatBuffer<80>& err_msg) {
|
|
uint64_t value;
|
|
|
|
if (sscanf(arg, UINT64_FORMAT, &value)) {
|
|
return set_uint64_t_flag(name, value, origin, err_msg);
|
|
}
|
|
err_msg.print("flag value must be an unsigned 64-bit integer");
|
|
return Flag::WRONG_FORMAT;
|
|
}
|
|
|
|
Flag::Error WriteableFlags::set_uint64_t_flag(const char* name, uint64_t value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
|
|
Flag::Error err = CommandLineFlags::uint64_tAtPut(name, &value, origin);
|
|
print_flag_error_message_if_needed(err, name, err_msg);
|
|
return err;
|
|
}
|
|
|
|
// set a size_t global flag
|
|
Flag::Error WriteableFlags::set_size_t_flag(const char* name, const char* arg, Flag::Flags origin, FormatBuffer<80>& err_msg) {
|
|
size_t value;
|
|
|
|
if (sscanf(arg, SIZE_FORMAT, &value)) {
|
|
return set_size_t_flag(name, value, origin, err_msg);
|
|
}
|
|
err_msg.print("flag value must be an unsigned integer");
|
|
return Flag::WRONG_FORMAT;
|
|
}
|
|
|
|
Flag::Error WriteableFlags::set_size_t_flag(const char* name, size_t value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
|
|
Flag::Error err = CommandLineFlags::size_tAtPut(name, &value, origin);
|
|
print_flag_error_message_if_needed(err, name, err_msg);
|
|
return err;
|
|
}
|
|
|
|
// set a string global flag using value from AttachOperation
|
|
Flag::Error WriteableFlags::set_ccstr_flag(const char* name, const char* value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
|
|
Flag::Error err = CommandLineFlags::ccstrAtPut((char*)name, &value, origin);
|
|
print_flag_error_message_if_needed(err, name, err_msg);
|
|
return err;
|
|
}
|
|
|
|
/* sets a writeable flag to the provided value
|
|
*
|
|
* - return status is one of the WriteableFlags::err enum values
|
|
* - an eventual error message will be generated to the provided err_msg buffer
|
|
*/
|
|
Flag::Error WriteableFlags::set_flag(const char* flag_name, const char* flag_value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
|
|
return set_flag(flag_name, &flag_value, set_flag_from_char, origin, err_msg);
|
|
}
|
|
|
|
/* sets a writeable flag to the provided value
|
|
*
|
|
* - return status is one of the WriteableFlags::err enum values
|
|
* - an eventual error message will be generated to the provided err_msg buffer
|
|
*/
|
|
Flag::Error WriteableFlags::set_flag(const char* flag_name, jvalue flag_value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
|
|
return set_flag(flag_name, &flag_value, set_flag_from_jvalue, origin, err_msg);
|
|
}
|
|
|
|
// a writeable flag setter accepting either 'jvalue' or 'char *' values
|
|
Flag::Error WriteableFlags::set_flag(const char* name, const void* value, Flag::Error(*setter)(Flag*,const void*,Flag::Flags,FormatBuffer<80>&), Flag::Flags origin, FormatBuffer<80>& err_msg) {
|
|
if (name == NULL) {
|
|
err_msg.print("flag name is missing");
|
|
return Flag::MISSING_NAME;
|
|
}
|
|
if (value == NULL) {
|
|
err_msg.print("flag value is missing");
|
|
return Flag::MISSING_VALUE;
|
|
}
|
|
|
|
Flag* f = Flag::find_flag((char*)name, strlen(name));
|
|
if (f) {
|
|
// only writeable flags are allowed to be set
|
|
if (f->is_writeable()) {
|
|
return setter(f, value, origin, err_msg);
|
|
} else {
|
|
err_msg.print("only 'writeable' flags can be set");
|
|
return Flag::NON_WRITABLE;
|
|
}
|
|
}
|
|
|
|
err_msg.print("flag %s does not exist", name);
|
|
return Flag::INVALID_FLAG;
|
|
}
|
|
|
|
// a writeable flag setter accepting 'char *' values
|
|
Flag::Error WriteableFlags::set_flag_from_char(Flag* f, const void* value, Flag::Flags origin, FormatBuffer<80>& err_msg) {
|
|
char* flag_value = *(char**)value;
|
|
if (flag_value == NULL) {
|
|
err_msg.print("flag value is missing");
|
|
return Flag::MISSING_VALUE;
|
|
}
|
|
if (f->is_bool()) {
|
|
return set_bool_flag(f->_name, flag_value, origin, err_msg);
|
|
} else if (f->is_int()) {
|
|
return set_int_flag(f->_name, flag_value, origin, err_msg);
|
|
} else if (f->is_uint()) {
|
|
return set_uint_flag(f->_name, flag_value, origin, err_msg);
|
|
} else if (f->is_intx()) {
|
|
return set_intx_flag(f->_name, flag_value, origin, err_msg);
|
|
} else if (f->is_uintx()) {
|
|
return set_uintx_flag(f->_name, flag_value, origin, err_msg);
|
|
} else if (f->is_uint64_t()) {
|
|
return set_uint64_t_flag(f->_name, flag_value, origin, err_msg);
|
|
} else if (f->is_size_t()) {
|
|
return set_size_t_flag(f->_name, flag_value, origin, err_msg);
|
|
} else if (f->is_ccstr()) {
|
|
return set_ccstr_flag(f->_name, flag_value, origin, err_msg);
|
|
} else {
|
|
ShouldNotReachHere();
|
|
}
|
|
return Flag::ERR_OTHER;
|
|
}
|
|
|
|
// a writeable flag setter accepting 'jvalue' values
|
|
Flag::Error WriteableFlags::set_flag_from_jvalue(Flag* f, const void* value, Flag::Flags origin,
|
|
FormatBuffer<80>& err_msg) {
|
|
jvalue new_value = *(jvalue*)value;
|
|
if (f->is_bool()) {
|
|
bool bvalue = (new_value.z == JNI_TRUE ? true : false);
|
|
return set_bool_flag(f->_name, bvalue, origin, err_msg);
|
|
} else if (f->is_int()) {
|
|
int ivalue = (int)new_value.j;
|
|
return set_int_flag(f->_name, ivalue, origin, err_msg);
|
|
} else if (f->is_uint()) {
|
|
uint uvalue = (uint)new_value.j;
|
|
return set_uint_flag(f->_name, uvalue, origin, err_msg);
|
|
} else if (f->is_intx()) {
|
|
intx ivalue = (intx)new_value.j;
|
|
return set_intx_flag(f->_name, ivalue, origin, err_msg);
|
|
} else if (f->is_uintx()) {
|
|
uintx uvalue = (uintx)new_value.j;
|
|
return set_uintx_flag(f->_name, uvalue, origin, err_msg);
|
|
} else if (f->is_uint64_t()) {
|
|
uint64_t uvalue = (uint64_t)new_value.j;
|
|
return set_uint64_t_flag(f->_name, uvalue, origin, err_msg);
|
|
} else if (f->is_size_t()) {
|
|
size_t svalue = (size_t)new_value.j;
|
|
return set_size_t_flag(f->_name, svalue, origin, err_msg);
|
|
} else if (f->is_ccstr()) {
|
|
oop str = JNIHandles::resolve_external_guard(new_value.l);
|
|
if (str == NULL) {
|
|
err_msg.print("flag value is missing");
|
|
return Flag::MISSING_VALUE;
|
|
}
|
|
ccstr svalue = java_lang_String::as_utf8_string(str);
|
|
Flag::Error ret = WriteableFlags::set_ccstr_flag(f->_name, svalue, origin, err_msg);
|
|
if (ret != Flag::SUCCESS) {
|
|
FREE_C_HEAP_ARRAY(char, svalue);
|
|
}
|
|
return ret;
|
|
} else {
|
|
ShouldNotReachHere();
|
|
}
|
|
return Flag::ERR_OTHER;
|
|
}
|