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Allow users of GraphWriter to display graphs asynchronously. This

Browse Source 
provides a way to quickly dump a bunch of graph information to dot files
and display them.  It's a timesaver when working on large systems.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75056 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Greene 2009-07-08 21:53:41 +00:00
parent 59629c1d8b
commit 229509a8bc
2 changed files with 32 additions and 16 deletions
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3
include/llvm/Support/GraphWriter.h
View File

@ -29,6 +29,7 @@
#include "llvm/System/Path.h"
#include <fstream>
#include <vector>
#include <cassert>
namespace llvm {
@ -66,7 +67,7 @@ namespace DOT { // Private functions...
}
}
void DisplayGraph(const sys::Path& Filename);
void DisplayGraph(const sys::Path& Filename, bool wait=true);
template<typename GraphType>
class GraphWriter {

45
lib/Support/GraphWriter.cpp
View File

@ -18,7 +18,7 @@
#include "llvm/Config/config.h"
using namespace llvm;
void llvm::DisplayGraph(const sys::Path &Filename) {
void llvm::DisplayGraph(const sys::Path &Filename, bool wait) {
std::string ErrMsg;
#if HAVE_GRAPHVIZ
sys::Path Graphviz(LLVM_PATH_GRAPHVIZ);
@ -30,16 +30,24 @@ void llvm::DisplayGraph(const sys::Path &Filename) {
cerr << "Running 'Graphviz' program... " << std::flush;
if (sys::Program::ExecuteAndWait(Graphviz, &args[0],0,0,0,0,&ErrMsg)) {
cerr << "Error viewing graph: " << ErrMsg << "\n";
cerr << "Error viewing graph " << Filename << ": " << ErrMsg << "\n";
}
#elif (HAVE_GV && HAVE_DOT)
else {
Filename.eraseFromDisk();
}
#elif (HAVE_GV && (HAVE_DOT || HAVE_FDP))
sys::Path PSFilename = Filename;
PSFilename.appendSuffix("ps");
sys::Path dot(LLVM_PATH_DOT);
#if HAVE_FDP
sys::Path prog(LLVM_PATH_FDP);
#else
sys::Path prog(LLVM_PATH_DOT);
#endif
std::vector<const char*> args;
args.push_back(dot.c_str());
args.push_back(prog.c_str());
args.push_back("-Tps");
args.push_back("-Nfontname=Courier");
args.push_back("-Gsize=7.5,10");
@ -48,9 +56,10 @@ void llvm::DisplayGraph(const sys::Path &Filename) {
args.push_back(PSFilename.c_str());
args.push_back(0);
cerr << "Running 'dot' program... " << std::flush;
if (sys::Program::ExecuteAndWait(dot, &args[0],0,0,0,0,&ErrMsg)) {
cerr << "Error viewing graph: '" << ErrMsg << "\n";
cerr << "Running '" << prog << "' program... " << std::flush;
if (sys::Program::ExecuteAndWait(prog, &args[0],0,0,0,0,&ErrMsg)) {
cerr << "Error viewing graph " << Filename << ": '" << ErrMsg << "\n";
} else {
cerr << " done. \n";
@ -62,11 +71,18 @@ void llvm::DisplayGraph(const sys::Path &Filename) {
args.push_back(0);
ErrMsg.clear();
if (sys::Program::ExecuteAndWait(gv, &args[0],0,0,0,0,&ErrMsg)) {
cerr << "Error viewing graph: " << ErrMsg << "\n";
if (wait) {
if (sys::Program::ExecuteAndWait(gv, &args[0],0,0,0,0,&ErrMsg)) {
cerr << "Error viewing graph: " << ErrMsg << "\n";
}
Filename.eraseFromDisk();
PSFilename.eraseFromDisk();
}
else {
sys::Program::ExecuteNoWait(gv, &args[0],0,0,0,&ErrMsg);
cerr << "Remember to erase graph files: " << Filename << " " << PSFilename << "\n";
}
}
PSFilename.eraseFromDisk();
#elif HAVE_DOTTY
sys::Path dotty(LLVM_PATH_DOTTY);
@ -77,13 +93,12 @@ void llvm::DisplayGraph(const sys::Path &Filename) {
cerr << "Running 'dotty' program... " << std::flush;
if (sys::Program::ExecuteAndWait(dotty, &args[0],0,0,0,0,&ErrMsg)) {
cerr << "Error viewing graph: " << ErrMsg << "\n";
cerr << "Error viewing graph " << Filename << ": " << ErrMsg << "\n";
} else {
#ifdef __MINGW32__ // Dotty spawns another app and doesn't wait until it returns
return;
#endif
Filename.eraseFromDisk();
}
#endif
Filename.eraseFromDisk();
}