// Carries out the command, possibly by sending it to the server.
// If the client is controlled via the API, the setClientOuput method
// is invoked to update the client with the command output for access
// via the API.
void DebuggerCommand::onClient(DebuggerClient &client) {
TRACE(2, "DebuggerCommand::onClient\n");
onClientImpl(client);
if (client.isApiMode() && !m_incomplete) {
setClientOutput(client);
}
}
void CmdWhere::onClientImpl(DebuggerClient &client) {
if (DebuggerCommand::displayedHelp(client)) return;
if (client.argCount() > 1) {
help(client);
return;
}
Array st = fetchStackTrace(client);
if (st.empty()) {
client.info("(no stacktrace to display or in global scope)");
client.info("if you hit serialization limit, consider do "
"\"set sa off\" and then get the stack without args");
return;
}
// so list command can default to current frame
client.moveToFrame(client.getFrame(), false);
if (client.argCount() == 0) {
int i = 0;
for (ArrayIter iter(st); iter; ++iter) {
client.printFrame(i, iter.second().toArray());
++i;
if (!client.isApiMode() &&
i % DebuggerClient::ScrollBlockSize == 0 &&
client.ask("There are %zd more frames. Continue? [Y/n]",
st.size() - i) == 'n') {
break;
}
}
} else {
string snum = client.argValue(1);
int num = atoi(snum.c_str());
if (snum[0] == '-') {
snum = snum.substr(1);
}
if (!DebuggerClient::IsValidNumber(snum)) {
client.error("The argument, if specified, has to be numeric.");
return;
}
if (num > 0) {
for (int i = 0; i < num && i < st.size(); i++) {
client.printFrame(i, st[i].toArray());
}
} else if (num < 0) {
for (int i = st.size() + num; i < st.size(); i++) {
client.printFrame(i, st[i].toArray());
}
} else {
client.error("0 was specified for the number of frames");
client.tutorial(
"The optional argument is the number of frames to print out. "
"Use a positive number to print out innermost frames. Use a negative "
"number to print out outermost frames."
);
}
}
}
void CmdPrint::onClientImpl(DebuggerClient &client) {
if (DebuggerCommand::displayedHelp(client)) return;
if (client.argCount() == 0) {
help(client);
return;
}
int index = 1;
if (client.arg(1, "always")) {
m_isForWatch = true;
if (client.argCount() == 1) {
client.error("'[p]rint [a]lways' needs an expression to watch.");
return;
}
index++;
} else if (client.arg(1, "list")) {
m_isForWatch = true;
processList(client);
return;
} else if (client.arg(1, "clear")) {
m_isForWatch = true;
processClear(client);
return;
}
const char *format = nullptr;
for (const char **fmt = Formats; *fmt; fmt++) {
if (client.arg(index, *fmt)) {
format = *fmt;
index++;
break;
}
}
m_body = client.lineRest(index);
if (m_isForWatch) {
client.addWatch(format, m_body);
return;
}
m_bypassAccessCheck = client.getDebuggerBypassCheck();
m_printLevel = client.getDebuggerPrintLevel();
assert(m_printLevel <= 0 || m_printLevel >= DebuggerClient::MinPrintLevel);
m_frame = client.getFrame();
CmdPrintPtr res = client.xend<CmdPrint>(this);
if (!res->is(m_type)) {
assert(client.isApiMode());
m_incomplete = true;
res->setClientOutput(client);
} else {
m_output = res->m_output;
m_ret = res->m_ret;
if (!m_output.empty()) {
client.output(m_output);
}
client.output(FormatResult(format, m_ret));
}
}
void CmdEval::onClientImpl(DebuggerClient &client) {
m_body = client.getCode();
m_frame = client.getFrame();
m_bypassAccessCheck = client.getDebuggerBypassCheck();
DebuggerCommandPtr res =
client.xendWithNestedExecution<DebuggerCommand>(this);
if (!res->is(m_type)) {
assert(client.isApiMode());
m_incomplete = true;
res->setClientOutput(client);
} else {
res->handleReply(client);
}
}
void CmdEval::onClientImpl(DebuggerClient &client) {
m_body = client.getCode();
m_frame = client.getFrame();
m_bypassAccessCheck = client.getDebuggerBypassCheck();
client.sendToServer(this);
DebuggerCommandPtr res = client.recvFromServer(m_type);
if (!res->is(m_type)) {
assert(client.isApiMode());
m_incomplete = true;
res->setClientOutput(client);
} else {
res->handleReply(client);
}
}
bool CmdMachine::AttachSandbox(DebuggerClient &client,
const char *user /* = NULL */,
const char *name /* = NULL */,
bool force /* = false */) {
string login;
if (user == nullptr) {
user = client.getCurrentUser().c_str();
}
if (client.isApiMode()) {
force = true;
}
DSandboxInfoPtr sandbox(new DSandboxInfo());
sandbox->m_user = user ? user : "";
sandbox->m_name = (name && *name) ? name : "default";
return AttachSandbox(client, sandbox, force);
}
void CmdInterrupt::onClientImpl(DebuggerClient &client) {
client.setCurrentLocation(m_threadId, m_bpi);
if (!client.getDebuggerClientSmallStep()) {
// Adjust line and char if it's not small stepping
if (m_bpi->m_line1 == m_bpi->m_line2) {
m_bpi->m_char1 = 1;
m_bpi->m_char2 = 100;
}
}
client.setMatchedBreakPoints(m_matched);
switch (m_interrupt) {
case SessionStarted:
if (!m_program.empty()) {
client.info("Program %s loaded. Type '[r]un' or '[c]ontinue' to go.",
m_program.c_str());
m_bpi->m_file = m_program;
}
break;
case SessionEnded:
if (!m_program.empty()) {
client.info("Program %s exited normally.", m_program.c_str());
}
break;
case RequestStarted:
if (!m_program.empty()) {
client.info("Web request %s started.", m_program.c_str());
}
break;
case RequestEnded:
if (!m_program.empty()) {
client.info("Web request %s ended.", m_program.c_str());
}
break;
case PSPEnded:
if (!m_program.empty()) {
client.info("Post-Send Processing for %s was ended.",
m_program.c_str());
}
break;
case HardBreakPoint:
case BreakPointReached:
case ExceptionThrown: {
bool found = false;
bool toggled = false;
BreakPointInfoPtrVec *bps = client.getBreakPoints();
for (unsigned int i = 0; i < m_matched.size(); i++) {
BreakPointInfoPtr bpm = m_matched[i];
BreakPointInfoPtr bp;
int index = 0;
for (; index < (int)bps->size(); index++) {
if (bpm->same((*bps)[index])) {
bp = (*bps)[index];
break;
}
}
if (bp) {
found = true;
if (bp->m_state == BreakPointInfo::Once) {
bp->m_state = BreakPointInfo::Disabled;
toggled = true;
}
if (m_interrupt == BreakPointReached ||
m_interrupt == HardBreakPoint) {
client.info("Breakpoint %d reached %s", bp->index(),
m_bpi->site().c_str());
client.shortCode(m_bpi);
} else {
if (m_bpi->m_exceptionClass == BreakPointInfo::ErrorClassName) {
client.info("Breakpoint %d reached: An error occurred %s",
bp->index(), m_bpi->site().c_str());
client.shortCode(m_bpi);
client.error("Error Message: %s",
m_bpi->m_exceptionObject.c_str());
} else {
client.info("Breakpoint %d reached: Throwing %s %s",
bp->index(),
m_bpi->m_exceptionClass.c_str(),
m_bpi->site().c_str());
client.shortCode(m_bpi);
if (client.isApiMode() || client.getLogFileHandler()) {
client.output(m_bpi->m_exceptionObject);
}
}
}
if (!bpm->m_output.empty()) {
client.print(bpm->m_output);
}
}
}
if (toggled) {
CmdBreak::SendClientBreakpointListToServer(client);
}
if (!found) {
if (m_interrupt == HardBreakPoint) {
// for HardBreakPoint, default the frame to the caller
client.setFrame(1);
}
client.info("Break %s", m_bpi->site().c_str());
client.shortCode(m_bpi);
}
break;
}
}
if (!m_errorMsg.empty()) {
client.error(m_errorMsg);
}
// watches
switch (m_interrupt) {
case SessionStarted:
case RequestStarted:
break;
default: {
DebuggerClient::WatchPtrVec &watches = client.getWatches();
for (int i = 0; i < (int)watches.size(); i++) {
if (i > 0) client.output("");
client.info("Watch %d: %s =", i + 1, watches[i]->second.c_str());
Variant v = CmdPrint().processWatch(client, watches[i]->first,
watches[i]->second);
client.output(CmdPrint::FormatResult(watches[i]->first, v));
}
}
}
}
