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Debugger[New CDB]: Update all variables on assignment.

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Some documentation/comment changes.
This commit is contained in:
Friedemann Kleint
2011-01-11 14:58:32 +01:00
parent e32cd328f3
commit b74ecbdb5a
12 changed files with 85 additions and 48 deletions
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48
src/plugins/debugger/cdb/cdbengine.cpp
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@@ -95,29 +95,30 @@ enum { debugBreakpoints = 0 };
/* CdbEngine version 2: Run the CDB process on pipes and parse its output.
* The engine relies on a CDB extension Qt Creator provides as an extension
* library (32/64bit). It serves to:
* library (32/64bit), which is loaded into cdb.exe. It serves to:
* - Notify the engine about the state of the debugging session:
* + idle: (hooked with .idle_cmd) debuggee stopped
* + idle: (hooked up with .idle_cmd) debuggee stopped
* + accessible: Debuggee stopped, cdb.exe accepts commands
* + inaccessible: Debuggee runs, no way to post commands
* + session active/inactive: Lost debuggee, terminating.
* - Hook up with output/event callbacks and produce formatted output
* - Hook up with output/event callbacks and produce formatted output to be able
* to catch application output and exceptions.
* - Provide some extension commands that produce output in a standardized (GDBMI)
* format that ends up in handleExtensionMessage().
* + pid Return debuggee pid for interrupting.
* + locals Print locals from SymbolGroup
* + expandLocals Expand locals in symbol group
* + registers, modules, threads
* Commands can be posted:
* postCommand: Does not expect a reply
* postBuiltinCommand: Run a builtin-command producing free-format, multiline output
* that is captured by enclosing it in special tokens using the 'echo' command and
* then invokes a callback with a CdbBuiltinCommand structure.
* postExtensionCommand: Run a command provided by the extension producing
* one-line output and invoke a callback with a CdbExtensionCommand structure. */
* Commands can be posted by calling:
* 1) postCommand(): Does not expect a reply
* 2) postBuiltinCommand(): Run a builtin-command producing free-format, multiline output
* that is captured by enclosing it in special tokens using the 'echo' command and
* then invokes a callback with a CdbBuiltinCommand structure.
* 3) postExtensionCommand(): Run a command provided by the extension producing
* one-line output and invoke a callback with a CdbExtensionCommand structure
* (output is potentially split up in chunks). */
using namespace ProjectExplorer;
using namespace Debugger::Internal;
namespace Debugger {
namespace Internal {
@@ -899,7 +900,9 @@ void CdbEngine::assignValueInDebugger(const WatchData *w, const QString &expr, c
ByteArrayInputStream str(cmd);
str << m_extensionCommandPrefixBA << "assign " << w->iname << '=' << value.toString();
postCommand(cmd, 0);
updateLocalVariable(w->iname);
// Update all locals in case we change a union or something pointed to
// that affects other variables, too.
updateLocals();
}
void CdbEngine::handleThreads(const CdbExtensionCommandPtr &reply)
@@ -1034,9 +1037,26 @@ void CdbEngine::activateFrame(int index)
} else {
assemblerAction->trigger(); // Seems to trigger update
}
} else {
gotoLocation(frame);
updateLocals();
}
}
void CdbEngine::updateLocals()
{
const int frameIndex = stackHandler()->currentIndex();
if (frameIndex < 0) {
watchHandler()->beginCycle();
watchHandler()->endCycle();
return;
}
const StackFrame frame = stackHandler()->currentFrame();
if (!frame.isUsable()) {
watchHandler()->beginCycle();
watchHandler()->endCycle();
return;
}
gotoLocation(frame);
// Watchers: Initial expand, get uninitialized and query
QByteArray arguments;
ByteArrayInputStream str(arguments);
@@ -1068,7 +1088,7 @@ void CdbEngine::activateFrame(int index)
}
}
// Required arguments: frame
str << blankSeparator << index;
str << blankSeparator << frameIndex;
watchHandler()->beginCycle();
postExtensionCommand("locals", arguments, 0, &CdbEngine::handleLocals);
}