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* Add a new helper progress method

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* Make sure that the user sees the 100% mark
* Don't bother printing out X.0%, just print out X%


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10672 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-12-31 10:20:38 +00:00
parent 60837821e2
commit 9e26027b82
3 changed files with 31 additions and 4 deletions
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10
include/Support/SlowOperationInformer.h
View File

@ -32,6 +32,7 @@
#define SUPPORT_SLOW_OPERATION_INFORMER_H
#include <string>
#include <cassert>
namespace llvm {
class SlowOperationInformer {
@ -49,6 +50,15 @@ namespace llvm {
/// along the operation is, given in 1/10ths of a percent (in other words,
/// Amount should range from 0 to 1000).
void progress(unsigned Amount);
/// progress - Same as the method above, but this performs the division for
/// you, and helps you avoid overflow if you are dealing with largish
/// numbers.
void progress(unsigned Current, unsigned Maximum) {
assert(Maximum != 0 &&
"Shouldn't be doing work if there is nothing to do!");
progress(Current*1000ULL/Maximum);
}
};
} // end namespace llvm

10
include/llvm/Support/SlowOperationInformer.h
View File

@ -32,6 +32,7 @@
#define SUPPORT_SLOW_OPERATION_INFORMER_H
#include <string>
#include <cassert>
namespace llvm {
class SlowOperationInformer {
@ -49,6 +50,15 @@ namespace llvm {
/// along the operation is, given in 1/10ths of a percent (in other words,
/// Amount should range from 0 to 1000).
void progress(unsigned Amount);
/// progress - Same as the method above, but this performs the division for
/// you, and helps you avoid overflow if you are dealing with largish
/// numbers.
void progress(unsigned Current, unsigned Maximum) {
assert(Maximum != 0 &&
"Shouldn't be doing work if there is nothing to do!");
progress(Current*1000ULL/Maximum);
}
};
} // end namespace llvm

15
lib/Support/SlowOperationInformer.cpp
View File

@ -59,8 +59,12 @@ SlowOperationInformer::SlowOperationInformer(const std::string &Name)
SlowOperationInformer::~SlowOperationInformer() {
NestedSOI = false;
if (LastPrintAmount)
std::cout << "\n";
if (LastPrintAmount) {
// If we have printed something, make _sure_ we print the 100% amount, and
// also print a newline.
std::cout << std::string(LastPrintAmount, '\b') << "Progress "
<< OperationName << ": 100% \n";
}
alarm(0);
signal(SIGALRM, SIG_DFL);
@ -87,8 +91,11 @@ void SlowOperationInformer::progress(unsigned Amount) {
std::string ToPrint = std::string(LastPrintAmount, '\b');
std::ostringstream OS;
OS << "Progress " << OperationName << ": " << Amount/10 << "." << Amount % 10
<< "%";
OS << "Progress " << OperationName << ": " << Amount/10;
if (unsigned Rem = Amount % 10)
OS << "." << Rem << "%";
else
OS << "% ";
LastPrintAmount = OS.str().size();
std::cout << ToPrint+OS.str() << std::flush;