ExternalVendorCode/corda
1
0
Fork 0
mirror of https://github.com/corda/corda.git synced 2025-01-07 13:38:47 +00:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

prevent busywait loops from blocking the VM in interpret mode

Browse Source
This commit is contained in:
Joshua Warner 2013-12-13 11:48:26 -07:00
parent 0340be23ce
commit 0645b0e4cf
1 changed files with 26 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
src/interpret.cpp
View File

@ -765,6 +765,10 @@ pushField(Thread* t, object target, object field)
}
}
void safePoint(Thread* t) {
ENTER(t, Thread::IdleState);
}
object
interpret3(Thread* t, const int base)
{
@ -1489,12 +1493,12 @@ interpret3(Thread* t, const int base)
case goto_: {
int16_t offset = codeReadInt16(t, code, ip);
ip = (ip - 3) + offset;
} goto loop;
} goto back_branch;
case goto_w: {
int32_t offset = codeReadInt32(t, code, ip);
ip = (ip - 5) + offset;
} goto loop;
} goto back_branch;
case i2b: {
pushInt(t, static_cast<int8_t>(popInt(t)));
@ -1626,7 +1630,7 @@ interpret3(Thread* t, const int base)
if (a == b) {
ip = (ip - 3) + offset;
}
} goto loop;
} goto back_branch;
case if_acmpne: {
int16_t offset = codeReadInt16(t, code, ip);
@ -1637,7 +1641,7 @@ interpret3(Thread* t, const int base)
if (a != b) {
ip = (ip - 3) + offset;
}
} goto loop;
} goto back_branch;
case if_icmpeq: {
int16_t offset = codeReadInt16(t, code, ip);
@ -1648,7 +1652,7 @@ interpret3(Thread* t, const int base)
if (a == b) {
ip = (ip - 3) + offset;
}
} goto loop;
} goto back_branch;
case if_icmpne: {
int16_t offset = codeReadInt16(t, code, ip);
@ -1659,7 +1663,7 @@ interpret3(Thread* t, const int base)
if (a != b) {
ip = (ip - 3) + offset;
}
} goto loop;
} goto back_branch;
case if_icmpgt: {
int16_t offset = codeReadInt16(t, code, ip);
@ -1670,7 +1674,7 @@ interpret3(Thread* t, const int base)
if (a > b) {
ip = (ip - 3) + offset;
}
} goto loop;
} goto back_branch;
case if_icmpge: {
int16_t offset = codeReadInt16(t, code, ip);
@ -1681,7 +1685,7 @@ interpret3(Thread* t, const int base)
if (a >= b) {
ip = (ip - 3) + offset;
}
} goto loop;
} goto back_branch;
case if_icmplt: {
int16_t offset = codeReadInt16(t, code, ip);
@ -1692,7 +1696,7 @@ interpret3(Thread* t, const int base)
if (a < b) {
ip = (ip - 3) + offset;
}
} goto loop;
} goto back_branch;
case if_icmple: {
int16_t offset = codeReadInt16(t, code, ip);
@ -1703,7 +1707,7 @@ interpret3(Thread* t, const int base)
if (a <= b) {
ip = (ip - 3) + offset;
}
} goto loop;
} goto back_branch;
case ifeq: {
int16_t offset = codeReadInt16(t, code, ip);
@ -1711,7 +1715,7 @@ interpret3(Thread* t, const int base)
if (popInt(t) == 0) {
ip = (ip - 3) + offset;
}
} goto loop;
} goto back_branch;
case ifne: {
int16_t offset = codeReadInt16(t, code, ip);
@ -1719,7 +1723,7 @@ interpret3(Thread* t, const int base)
if (popInt(t)) {
ip = (ip - 3) + offset;
}
} goto loop;
} goto back_branch;
case ifgt: {
int16_t offset = codeReadInt16(t, code, ip);
@ -1727,7 +1731,7 @@ interpret3(Thread* t, const int base)
if (static_cast<int32_t>(popInt(t)) > 0) {
ip = (ip - 3) + offset;
}
} goto loop;
} goto back_branch;
case ifge: {
int16_t offset = codeReadInt16(t, code, ip);
@ -1735,7 +1739,7 @@ interpret3(Thread* t, const int base)
if (static_cast<int32_t>(popInt(t)) >= 0) {
ip = (ip - 3) + offset;
}
} goto loop;
} goto back_branch;
case iflt: {
int16_t offset = codeReadInt16(t, code, ip);
@ -1743,7 +1747,7 @@ interpret3(Thread* t, const int base)
if (static_cast<int32_t>(popInt(t)) < 0) {
ip = (ip - 3) + offset;
}
} goto loop;
} goto back_branch;
case ifle: {
int16_t offset = codeReadInt16(t, code, ip);
@ -1751,7 +1755,7 @@ interpret3(Thread* t, const int base)
if (static_cast<int32_t>(popInt(t)) <= 0) {
ip = (ip - 3) + offset;
}
} goto loop;
} goto back_branch;
case ifnonnull: {
int16_t offset = codeReadInt16(t, code, ip);
@ -1759,7 +1763,7 @@ interpret3(Thread* t, const int base)
if (popObject(t)) {
ip = (ip - 3) + offset;
}
} goto loop;
} goto back_branch;
case ifnull: {
int16_t offset = codeReadInt16(t, code, ip);
@ -1767,7 +1771,7 @@ interpret3(Thread* t, const int base)
if (popObject(t) == 0) {
ip = (ip - 3) + offset;
}
} goto loop;
} goto back_branch;
case iinc: {
uint8_t index = codeBody(t, code, ip++);
@ -2711,6 +2715,10 @@ interpret3(Thread* t, const int base)
default: abort(t);
}
back_branch:
safePoint(t);
goto loop;
invoke: {
if (methodFlags(t, code) & ACC_NATIVE) {
invokeNative(t, code);