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Code Issues 1 Releases Wiki Activity

Restore old status logic - (status checks in run_vm should be using

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the previous status, not the current which is always JANET_STATUS_ALIVE)
This commit is contained in:
Calvin Rose
2019-01-08 13:42:29 -05:00
parent 67f26b7d72
commit b1e0849a2f
1 changed files with 9 additions and 9 deletions
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18
src/core/vm.c
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@@ -58,7 +58,7 @@ JANET_THREAD_LOCAL JanetFiber *janet_vm_fiber = NULL;
#define VM_END() }
#define VM_OP(op) label_##op :
#define VM_DEFAULT() label_unknown_op:
#define vm_next() goto *op_lookup[*pc & 0xFF];
#define vm_next() goto *op_lookup[*pc & 0xFF]
static void *op_lookup[255] = {
&&label_JOP_NOOP,
&&label_JOP_ERROR,
@@ -236,7 +236,7 @@ static Janet call_nonfn(JanetFiber *fiber, Janet callee) {
}
/* Interpreter main loop */
static JanetSignal run_vm(JanetFiber *fiber, Janet in) {
static JanetSignal run_vm(JanetFiber *fiber, Janet in, JanetFiberStatus status) {
/* Interpreter state */
register Janet *stack;
@@ -248,7 +248,7 @@ static JanetSignal run_vm(JanetFiber *fiber, Janet in) {
* waiting to be resumed. In those cases, use input and increment pc. We
* DO NOT use input when resuming a fiber that has been interrupted at a
* breakpoint. */
if (janet_fiber_status(fiber) != JANET_STATUS_NEW &&
if (status != JANET_STATUS_NEW &&
((*pc & 0xFF) == JOP_SIGNAL || (*pc & 0xFF) == JOP_RESUME)) {
stack[A] = in;
pc++;
@@ -257,7 +257,7 @@ static JanetSignal run_vm(JanetFiber *fiber, Janet in) {
/* The first opcode to execute. If the first opcode has
* the breakpoint bit set and we were in the debug state, skip
* that first breakpoint. */
uint8_t first_opcode = (janet_fiber_status(fiber) == JANET_STATUS_DEBUG)
uint8_t first_opcode = (status == JANET_STATUS_DEBUG)
? (*pc & 0x7F)
: (*pc & 0xFF);
@@ -756,15 +756,15 @@ static JanetSignal run_vm(JanetFiber *fiber, Janet in) {
JanetSignal janet_continue(JanetFiber *fiber, Janet in, Janet *out) {
/* Check conditions */
JanetFiberStatus old_status = janet_fiber_status(fiber);
if (janet_vm_stackn >= JANET_RECURSION_GUARD) {
janet_fiber_set_status(fiber, JANET_STATUS_ERROR);
*out = janet_cstringv("C stack recursed too deeply");
return JANET_SIGNAL_ERROR;
}
JanetFiberStatus startstatus = janet_fiber_status(fiber);
if (startstatus == JANET_STATUS_ALIVE ||
startstatus == JANET_STATUS_DEAD ||
startstatus == JANET_STATUS_ERROR) {
if (old_status == JANET_STATUS_ALIVE ||
old_status == JANET_STATUS_DEAD ||
old_status == JANET_STATUS_ERROR) {
*out = janet_cstringv("cannot resume alive, dead, or errored fiber");
return JANET_SIGNAL_ERROR;
}
@@ -794,7 +794,7 @@ JanetSignal janet_continue(JanetFiber *fiber, Janet in, Janet *out) {
if (setjmp(fiber->buf)) {
signal = JANET_SIGNAL_ERROR;
} else {
signal = run_vm(fiber, in);
signal = run_vm(fiber, in, old_status);
}
/* Tear down */