Infinite loop in a view
How is ethereum network protected against infinite loops in views? In normal transaction you have to pay a gass, so it would be too expensive for you, but calls to views are for free.
For example this:
contract Tester {
function loo() public pure returns(string memory){
uint i = 1;
uint c = 0;
while(i == 1){
c = c + 1;
}
return "good";
}
}
I tried to call this in Remix and it crashed.
solidity transactions blockchain dapps
asked Mar 27 at 12:40
Banana CakeBanana Cake
544
add a comment |
How is ethereum network protected against infinite loops in views? In normal transaction you have to pay a gass, so it would be too expensive for you, but calls to views are for free.
For example this:
contract Tester {
function loo() public pure returns(string memory){
uint i = 1;
uint c = 0;
while(i == 1){
c = c + 1;
}
return "good";
}
}
I tried to call this in Remix and it crashed.
solidity transactions blockchain dapps
asked Mar 27 at 12:40
Banana CakeBanana Cake
544
add a comment |
How is ethereum network protected against infinite loops in views? In normal transaction you have to pay a gass, so it would be too expensive for you, but calls to views are for free.
For example this:
contract Tester {
function loo() public pure returns(string memory){
uint i = 1;
uint c = 0;
while(i == 1){
c = c + 1;
}
return "good";
}
}
I tried to call this in Remix and it crashed.
solidity transactions blockchain dapps
asked Mar 27 at 12:40
Banana CakeBanana Cake
544
How is ethereum network protected against infinite loops in views? In normal transaction you have to pay a gass, so it would be too expensive for you, but calls to views are for free.
For example this:
contract Tester {
function loo() public pure returns(string memory){
uint i = 1;
uint c = 0;
while(i == 1){
c = c + 1;
}
return "good";
}
}
I tried to call this in Remix and it crashed.
solidity transactions blockchain dapps
solidity transactions blockchain dapps
asked Mar 27 at 12:40
Banana CakeBanana Cake
544
asked Mar 27 at 12:40
Banana CakeBanana Cake
544
asked Mar 27 at 12:40
Banana CakeBanana Cake
544
asked Mar 27 at 12:40
Banana CakeBanana Cake
544
asked Mar 27 at 12:40
Banana CakeBanana Cake
544
544
add a comment |
add a comment |
1 Answer
1
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oldest
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When view function is executed on-chain, i.e. within mined transaction, it consumes gas, and this protects node from infinite loop. When executed off-chain via Web3 API, caller is still able to specify gas limit for the execution, see documentation.
If gas limit is not specified, it is up to particular implementation how to protect from such things, because they affect only the process that executes transaction off-chain, and do not affect other nodes. Some implementations may be unprotected, and it seems that REMIX is one of such unprotected implementations.
answered Mar 27 at 12:49
Mikhail VladimirovMikhail Vladimirov
1,361316
1
For example if none is specified geth will use the current block gas limit.
– Ismael
Mar 27 at 21:32
add a comment |
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1 Answer
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1 Answer
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active
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When view function is executed on-chain, i.e. within mined transaction, it consumes gas, and this protects node from infinite loop. When executed off-chain via Web3 API, caller is still able to specify gas limit for the execution, see documentation.
If gas limit is not specified, it is up to particular implementation how to protect from such things, because they affect only the process that executes transaction off-chain, and do not affect other nodes. Some implementations may be unprotected, and it seems that REMIX is one of such unprotected implementations.
answered Mar 27 at 12:49
Mikhail VladimirovMikhail Vladimirov
1,361316
1
For example if none is specified geth will use the current block gas limit.
– Ismael
Mar 27 at 21:32
add a comment |
When view function is executed on-chain, i.e. within mined transaction, it consumes gas, and this protects node from infinite loop. When executed off-chain via Web3 API, caller is still able to specify gas limit for the execution, see documentation.
If gas limit is not specified, it is up to particular implementation how to protect from such things, because they affect only the process that executes transaction off-chain, and do not affect other nodes. Some implementations may be unprotected, and it seems that REMIX is one of such unprotected implementations.
answered Mar 27 at 12:49
Mikhail VladimirovMikhail Vladimirov
1,361316
1
For example if none is specified geth will use the current block gas limit.
– Ismael
Mar 27 at 21:32
add a comment |
When view function is executed on-chain, i.e. within mined transaction, it consumes gas, and this protects node from infinite loop. When executed off-chain via Web3 API, caller is still able to specify gas limit for the execution, see documentation.
If gas limit is not specified, it is up to particular implementation how to protect from such things, because they affect only the process that executes transaction off-chain, and do not affect other nodes. Some implementations may be unprotected, and it seems that REMIX is one of such unprotected implementations.
answered Mar 27 at 12:49
Mikhail VladimirovMikhail Vladimirov
1,361316
When view function is executed on-chain, i.e. within mined transaction, it consumes gas, and this protects node from infinite loop. When executed off-chain via Web3 API, caller is still able to specify gas limit for the execution, see documentation.
If gas limit is not specified, it is up to particular implementation how to protect from such things, because they affect only the process that executes transaction off-chain, and do not affect other nodes. Some implementations may be unprotected, and it seems that REMIX is one of such unprotected implementations.
answered Mar 27 at 12:49
Mikhail VladimirovMikhail Vladimirov
1,361316
edited Mar 27 at 21:40
answered Mar 27 at 12:49
Mikhail VladimirovMikhail Vladimirov
1,361316
answered Mar 27 at 12:49
Mikhail VladimirovMikhail Vladimirov
1,361316
answered Mar 27 at 12:49
Mikhail VladimirovMikhail Vladimirov
1,361316
1,361316
1
For example if none is specified geth will use the current block gas limit.
– Ismael
Mar 27 at 21:32
add a comment |
1
For example if none is specified geth will use the current block gas limit.
– Ismael
Mar 27 at 21:32
1
1
For example if none is specified geth will use the current block gas limit.
– Ismael
Mar 27 at 21:32
For example if none is specified geth will use the current block gas limit.
– Ismael
Mar 27 at 21:32
add a comment |
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