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/crossrealm_d package

Functions

DoubleCounter

func DoubleCounter(cur realm) int

DoubleCounter reads counter and doubles it. Used to show that if counter were silently corrupted in memory, subsequent crossing calls would act on the wrong value.

Command

# WARNING: This command is running in an INSECURE mode.
# It is strongly recommended to use a hardware device for signing
# and avoid trusting any computer connected to the internet,
# as your private keys could be exposed.

gnokey maketx call -pkgpath "gno.land/r/tests/vm/crossrealm_d" -func "DoubleCounter" -gas-fee 1000000ugnot -gas-wanted 1_000_000_000 -send "" -chainid "dev" -remote "https://api.gno.berty.io:443" ADDRESSgnokey query -remote "https://api.gno.berty.io:443" auth/accounts/ADDRESS
gnokey maketx call -pkgpath "gno.land/r/tests/vm/crossrealm_d" -func "DoubleCounter" -gas-fee 1000000ugnot -gas-wanted 1_000_000_000 -send "" -broadcast=false ADDRESS > call.tx
gnokey sign -tx-path call.tx -chainid "dev" -account-number ACCOUNTNUMBER -account-sequence SEQUENCENUMBER ADDRESS
gnokey broadcast -remote "https://api.gno.berty.io:443" call.tx

GetCounter

func GetCounter(cur realm) int

Command

# WARNING: This command is running in an INSECURE mode.
# It is strongly recommended to use a hardware device for signing
# and avoid trusting any computer connected to the internet,
# as your private keys could be exposed.

gnokey maketx call -pkgpath "gno.land/r/tests/vm/crossrealm_d" -func "GetCounter" -gas-fee 1000000ugnot -gas-wanted 1_000_000_000 -send "" -chainid "dev" -remote "https://api.gno.berty.io:443" ADDRESSgnokey query -remote "https://api.gno.berty.io:443" auth/accounts/ADDRESS
gnokey maketx call -pkgpath "gno.land/r/tests/vm/crossrealm_d" -func "GetCounter" -gas-fee 1000000ugnot -gas-wanted 1_000_000_000 -send "" -broadcast=false ADDRESS > call.tx
gnokey sign -tx-path call.tx -chainid "dev" -account-number ACCOUNTNUMBER -account-sequence SEQUENCENUMBER ADDRESS
gnokey broadcast -remote "https://api.gno.berty.io:443" call.tx

MutateBytes

func MutateBytes(bz []byte)

MutateBytes mutates the first byte of bz to 0xff. Used to test whether a foreign realm can write to caller-allocated bytes. Under storage=authority, bz has PkgID=caller; borrow rule #1 here makes m.Realm=crossrealm_d (declaring realm); the write site (bz[0] = ...) should fire readonly because bz.PkgID != m.Realm.ID.

Param

Command

gnokey query vm/qeval -remote "https://api.gno.berty.io:443" -data "gno.land/r/tests/vm/crossrealm_d.MutateBytes()"

Result

SetCounter

func SetCounter(n int)

SetCounter: non-crossing. Calling this cross-realm triggers the readonly check because it directly assigns a package var.

Param

Command

gnokey query vm/qeval -remote "https://api.gno.berty.io:443" -data "gno.land/r/tests/vm/crossrealm_d.SetCounter()"

Result

SetCounterCrossing

func SetCounterCrossing(cur realm, n int)

SetCounterCrossing: crossing version. This works correctly cross-realm because the caller enters this realm's context.

Param

Command

# WARNING: This command is running in an INSECURE mode.
# It is strongly recommended to use a hardware device for signing
# and avoid trusting any computer connected to the internet,
# as your private keys could be exposed.

gnokey maketx call -pkgpath "gno.land/r/tests/vm/crossrealm_d" -func "SetCounterCrossing" -args $'' -gas-fee 1000000ugnot -gas-wanted 1_000_000_000 -send "" -chainid "dev" -remote "https://api.gno.berty.io:443" ADDRESSgnokey query -remote "https://api.gno.berty.io:443" auth/accounts/ADDRESS
gnokey maketx call -pkgpath "gno.land/r/tests/vm/crossrealm_d" -func "SetCounterCrossing" -args $'' -gas-fee 1000000ugnot -gas-wanted 1_000_000_000 -send "" -broadcast=false ADDRESS > call.tx
gnokey sign -tx-path call.tx -chainid "dev" -account-number ACCOUNTNUMBER -account-sequence SEQUENCENUMBER ADDRESS
gnokey broadcast -remote "https://api.gno.berty.io:443" call.tx