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src/hotspot/share/services/writeableFlags.cpp
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*** 25,35 ****
#include "precompiled.hpp"
#include "classfile/javaClasses.hpp"
#include "memory/allocation.inline.hpp"
#include "runtime/arguments.hpp"
#include "runtime/flags/jvmFlag.hpp"
- #include "runtime/flags/jvmFlagRangeList.hpp"
#include "runtime/java.hpp"
#include "runtime/jniHandles.hpp"
#include "services/writeableFlags.hpp"
#define TEMP_BUF_SIZE 80
--- 25,34 ----
*** 37,52 ****
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 JVMFlag* flag, char* buffer) {
! JVMFlagRange* range = JVMFlagRangeList::find(flag);
! 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;
--- 36,50 ----
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 JVMFlag* flag, char* buffer) {
! if (flag->has_range()) {
buffer_concat(buffer, "must have value in range ");
stringStream stream;
! flag->print_range(&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;
*** 62,72 ****
static void print_flag_error_message_if_needed(JVMFlag::Error error, const JVMFlag* flag, FormatBuffer<80>& err_msg) {
if (error == JVMFlag::SUCCESS) {
return;
}
! const char* name = flag->_name;
char buffer[TEMP_BUF_SIZE] = {'\0'};
if ((error != JVMFlag::MISSING_NAME) && (name != NULL)) {
buffer_concat(buffer, name);
buffer_concat(buffer, " error: ");
} else {
--- 60,70 ----
static void print_flag_error_message_if_needed(JVMFlag::Error error, const JVMFlag* flag, FormatBuffer<80>& err_msg) {
if (error == JVMFlag::SUCCESS) {
return;
}
! const char* name = flag->name();
char buffer[TEMP_BUF_SIZE] = {'\0'};
if ((error != JVMFlag::MISSING_NAME) && (name != NULL)) {
buffer_concat(buffer, name);
buffer_concat(buffer, " error: ");
} else {
*** 94,103 ****
--- 92,103 ----
}
err_msg.print("%s", buffer);
}
+ // TODO: templatize all of the following set_xxx_flag functions!
+
// set a boolean global flag
JVMFlag::Error WriteableFlags::set_bool_flag(const char* name, const char* arg, JVMFlag::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)) {
*** 107,117 ****
return JVMFlag::WRONG_FORMAT;
}
JVMFlag::Error WriteableFlags::set_bool_flag(const char* name, bool value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg) {
JVMFlag* flag = JVMFlag::find_flag(name);
! JVMFlag::Error err = JVMFlag::boolAtPut(flag, &value, origin);
print_flag_error_message_if_needed(err, flag, err_msg);
return err;
}
// set a int global flag
--- 107,117 ----
return JVMFlag::WRONG_FORMAT;
}
JVMFlag::Error WriteableFlags::set_bool_flag(const char* name, bool value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg) {
JVMFlag* flag = JVMFlag::find_flag(name);
! JVMFlag::Error err = JVMFlag::boolAtPut(flag, value, origin);
print_flag_error_message_if_needed(err, flag, err_msg);
return err;
}
// set a int global flag
*** 125,135 ****
return JVMFlag::WRONG_FORMAT;
}
JVMFlag::Error WriteableFlags::set_int_flag(const char* name, int value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg) {
JVMFlag* flag = JVMFlag::find_flag(name);
! JVMFlag::Error err = JVMFlag::intAtPut(flag, &value, origin);
print_flag_error_message_if_needed(err, flag, err_msg);
return err;
}
// set a uint global flag
--- 125,135 ----
return JVMFlag::WRONG_FORMAT;
}
JVMFlag::Error WriteableFlags::set_int_flag(const char* name, int value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg) {
JVMFlag* flag = JVMFlag::find_flag(name);
! JVMFlag::Error err = JVMFlag::intAtPut(flag, value, origin);
print_flag_error_message_if_needed(err, flag, err_msg);
return err;
}
// set a uint global flag
*** 143,153 ****
return JVMFlag::WRONG_FORMAT;
}
JVMFlag::Error WriteableFlags::set_uint_flag(const char* name, uint value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg) {
JVMFlag* flag = JVMFlag::find_flag(name);
! JVMFlag::Error err = JVMFlag::uintAtPut(flag, &value, origin);
print_flag_error_message_if_needed(err, flag, err_msg);
return err;
}
// set a intx global flag
--- 143,153 ----
return JVMFlag::WRONG_FORMAT;
}
JVMFlag::Error WriteableFlags::set_uint_flag(const char* name, uint value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg) {
JVMFlag* flag = JVMFlag::find_flag(name);
! JVMFlag::Error err = JVMFlag::uintAtPut(flag, value, origin);
print_flag_error_message_if_needed(err, flag, err_msg);
return err;
}
// set a intx global flag
*** 161,171 ****
return JVMFlag::WRONG_FORMAT;
}
JVMFlag::Error WriteableFlags::set_intx_flag(const char* name, intx value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg) {
JVMFlag* flag = JVMFlag::find_flag(name);
! JVMFlag::Error err = JVMFlag::intxAtPut(flag, &value, origin);
print_flag_error_message_if_needed(err, flag, err_msg);
return err;
}
// set a uintx global flag
--- 161,171 ----
return JVMFlag::WRONG_FORMAT;
}
JVMFlag::Error WriteableFlags::set_intx_flag(const char* name, intx value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg) {
JVMFlag* flag = JVMFlag::find_flag(name);
! JVMFlag::Error err = JVMFlag::intxAtPut(flag, value, origin);
print_flag_error_message_if_needed(err, flag, err_msg);
return err;
}
// set a uintx global flag
*** 179,189 ****
return JVMFlag::WRONG_FORMAT;
}
JVMFlag::Error WriteableFlags::set_uintx_flag(const char* name, uintx value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg) {
JVMFlag* flag = JVMFlag::find_flag(name);
! JVMFlag::Error err = JVMFlag::uintxAtPut(flag, &value, origin);
print_flag_error_message_if_needed(err, flag, err_msg);
return err;
}
// set a uint64_t global flag
--- 179,189 ----
return JVMFlag::WRONG_FORMAT;
}
JVMFlag::Error WriteableFlags::set_uintx_flag(const char* name, uintx value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg) {
JVMFlag* flag = JVMFlag::find_flag(name);
! JVMFlag::Error err = JVMFlag::uintxAtPut(flag, value, origin);
print_flag_error_message_if_needed(err, flag, err_msg);
return err;
}
// set a uint64_t global flag
*** 197,207 ****
return JVMFlag::WRONG_FORMAT;
}
JVMFlag::Error WriteableFlags::set_uint64_t_flag(const char* name, uint64_t value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg) {
JVMFlag* flag = JVMFlag::find_flag(name);
! JVMFlag::Error err = JVMFlag::uint64_tAtPut(flag, &value, origin);
print_flag_error_message_if_needed(err, flag, err_msg);
return err;
}
// set a size_t global flag
--- 197,207 ----
return JVMFlag::WRONG_FORMAT;
}
JVMFlag::Error WriteableFlags::set_uint64_t_flag(const char* name, uint64_t value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg) {
JVMFlag* flag = JVMFlag::find_flag(name);
! JVMFlag::Error err = JVMFlag::uint64_tAtPut(flag, value, origin);
print_flag_error_message_if_needed(err, flag, err_msg);
return err;
}
// set a size_t global flag
*** 215,225 ****
return JVMFlag::WRONG_FORMAT;
}
JVMFlag::Error WriteableFlags::set_size_t_flag(const char* name, size_t value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg) {
JVMFlag* flag = JVMFlag::find_flag(name);
! JVMFlag::Error err = JVMFlag::size_tAtPut(flag, &value, origin);
print_flag_error_message_if_needed(err, flag, err_msg);
return err;
}
// set a double global flag
--- 215,225 ----
return JVMFlag::WRONG_FORMAT;
}
JVMFlag::Error WriteableFlags::set_size_t_flag(const char* name, size_t value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg) {
JVMFlag* flag = JVMFlag::find_flag(name);
! JVMFlag::Error err = JVMFlag::size_tAtPut(flag, value, origin);
print_flag_error_message_if_needed(err, flag, err_msg);
return err;
}
// set a double global flag
*** 233,251 ****
return JVMFlag::WRONG_FORMAT;
}
JVMFlag::Error WriteableFlags::set_double_flag(const char* name, double value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg) {
JVMFlag* flag = JVMFlag::find_flag(name);
! JVMFlag::Error err = JVMFlag::doubleAtPut(flag, &value, origin);
print_flag_error_message_if_needed(err, flag, err_msg);
return err;
}
// set a string global flag using value from AttachOperation
JVMFlag::Error WriteableFlags::set_ccstr_flag(const char* name, const char* value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg) {
JVMFlag* flag = JVMFlag::find_flag(name);
! JVMFlag::Error err = JVMFlag::ccstrAtPut(flag, &value, origin);
print_flag_error_message_if_needed(err, flag, err_msg);
return err;
}
/* sets a writeable flag to the provided value
--- 233,251 ----
return JVMFlag::WRONG_FORMAT;
}
JVMFlag::Error WriteableFlags::set_double_flag(const char* name, double value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg) {
JVMFlag* flag = JVMFlag::find_flag(name);
! JVMFlag::Error err = JVMFlag::doubleAtPut(flag, value, origin);
print_flag_error_message_if_needed(err, flag, err_msg);
return err;
}
// set a string global flag using value from AttachOperation
JVMFlag::Error WriteableFlags::set_ccstr_flag(const char* name, const char* value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg) {
JVMFlag* flag = JVMFlag::find_flag(name);
! JVMFlag::Error err = JVMFlag::ccstrAtPut(flag, &value, origin); // TODO -- free the old value??
print_flag_error_message_if_needed(err, flag, err_msg);
return err;
}
/* sets a writeable flag to the provided value
*** 298,324 ****
if (flag_value == NULL) {
err_msg.print("flag value is missing");
return JVMFlag::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_double()) {
! return set_double_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 JVMFlag::ERR_OTHER;
}
--- 298,324 ----
if (flag_value == NULL) {
err_msg.print("flag value is missing");
return JVMFlag::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_double()) {
! return set_double_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 JVMFlag::ERR_OTHER;
}
*** 327,366 ****
JVMFlag::Error WriteableFlags::set_flag_from_jvalue(JVMFlag* f, const void* value, JVMFlag::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_double()) {
double dvalue = (double)new_value.d;
! return set_double_flag(f->_name, dvalue, 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 JVMFlag::MISSING_VALUE;
}
ccstr svalue = java_lang_String::as_utf8_string(str);
! JVMFlag::Error ret = WriteableFlags::set_ccstr_flag(f->_name, svalue, origin, err_msg);
if (ret != JVMFlag::SUCCESS) {
FREE_C_HEAP_ARRAY(char, svalue);
}
return ret;
} else {
--- 327,366 ----
JVMFlag::Error WriteableFlags::set_flag_from_jvalue(JVMFlag* f, const void* value, JVMFlag::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_double()) {
double dvalue = (double)new_value.d;
! return set_double_flag(f->name(), dvalue, 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 JVMFlag::MISSING_VALUE;
}
ccstr svalue = java_lang_String::as_utf8_string(str);
! JVMFlag::Error ret = WriteableFlags::set_ccstr_flag(f->name(), svalue, origin, err_msg);
if (ret != JVMFlag::SUCCESS) {
FREE_C_HEAP_ARRAY(char, svalue);
}
return ret;
} else {
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