//===----------------------------------------------------------------------===//
#include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/Format.h"
+#include "llvm/System/Program.h"
+#include "llvm/System/Process.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/Config/config.h"
+#include "llvm/Support/Compiler.h"
+#include "llvm/Support/ErrorHandling.h"
#include <ostream>
-using namespace llvm;
-#include <fcntl.h>
+#if defined(HAVE_UNISTD_H)
+# include <unistd.h>
+#endif
+#if defined(HAVE_FCNTL_H)
+# include <fcntl.h>
+#endif
#if defined(_MSC_VER)
#include <io.h>
-#ifndef STDIN_FILENO\r
-# define STDIN_FILENO 0\r
-#endif\r
-#ifndef STDOUT_FILENO\r
-# define STDOUT_FILENO 1\r
-#endif\r
-#ifndef STDERR_FILENO\r
-# define STDERR_FILENO 2\r
-#endif\r
+#include <fcntl.h>
+#ifndef STDIN_FILENO
+# define STDIN_FILENO 0
+#endif
+#ifndef STDOUT_FILENO
+# define STDOUT_FILENO 1
+#endif
+#ifndef STDERR_FILENO
+# define STDERR_FILENO 2
#endif
+#endif
+
+using namespace llvm;
+
// An out of line virtual method to provide a home for the class vtable.
void raw_ostream::handle() {}
+raw_ostream &raw_ostream::operator<<(unsigned long N) {
+ // Zero is a special case.
+ if (N == 0)
+ return *this << '0';
+
+ char NumberBuffer[20];
+ char *EndPtr = NumberBuffer+sizeof(NumberBuffer);
+ char *CurPtr = EndPtr;
+
+ while (N) {
+ *--CurPtr = '0' + char(N % 10);
+ N /= 10;
+ }
+ return write(CurPtr, EndPtr-CurPtr);
+}
+
+raw_ostream &raw_ostream::operator<<(long N) {
+ if (N < 0) {
+ *this << '-';
+ N = -N;
+ }
+
+ return this->operator<<(static_cast<unsigned long>(N));
+}
+
+raw_ostream &raw_ostream::operator<<(unsigned long long N) {
+ // Zero is a special case.
+ if (N == 0)
+ return *this << '0';
+
+ char NumberBuffer[20];
+ char *EndPtr = NumberBuffer+sizeof(NumberBuffer);
+ char *CurPtr = EndPtr;
+
+ while (N) {
+ *--CurPtr = '0' + char(N % 10);
+ N /= 10;
+ }
+ return write(CurPtr, EndPtr-CurPtr);
+}
+
+raw_ostream &raw_ostream::operator<<(long long N) {
+ if (N < 0) {
+ *this << '-';
+ N = -N;
+ }
+
+ return this->operator<<(static_cast<unsigned long long>(N));
+}
+
+raw_ostream &raw_ostream::operator<<(const void *P) {
+ uintptr_t N = (uintptr_t) P;
+ *this << '0' << 'x';
+
+ // Zero is a special case.
+ if (N == 0)
+ return *this << '0';
+
+ char NumberBuffer[20];
+ char *EndPtr = NumberBuffer+sizeof(NumberBuffer);
+ char *CurPtr = EndPtr;
+
+ while (N) {
+ unsigned x = N % 16;
+ *--CurPtr = (x < 10 ? '0' + x : 'a' + x - 10);
+ N /= 16;
+ }
+
+ return write(CurPtr, EndPtr-CurPtr);
+}
+
+void raw_ostream::flush_nonempty() {
+ assert(OutBufCur > OutBufStart && "Invalid call to flush_nonempty.");
+ write_impl(OutBufStart, OutBufCur - OutBufStart);
+ OutBufCur = OutBufStart;
+}
+
+raw_ostream &raw_ostream::write(unsigned char C) {
+ // Group exceptional cases into a single branch.
+ if (OutBufCur >= OutBufEnd) {
+ if (Unbuffered) {
+ write_impl(reinterpret_cast<char*>(&C), 1);
+ return *this;
+ }
+
+ if (!OutBufStart)
+ SetBufferSize();
+ else
+ flush_nonempty();
+ }
+
+ *OutBufCur++ = C;
+ return *this;
+}
+
+raw_ostream &raw_ostream::write(const char *Ptr, unsigned Size) {
+ // Group exceptional cases into a single branch.
+ if (BUILTIN_EXPECT(OutBufCur+Size > OutBufEnd, false)) {
+ if (Unbuffered) {
+ write_impl(Ptr, Size);
+ return *this;
+ }
+
+ if (!OutBufStart)
+ SetBufferSize();
+ else
+ flush_nonempty();
+ }
+
+ // Handle short strings specially, memcpy isn't very good at very short
+ // strings.
+ switch (Size) {
+ case 4: OutBufCur[3] = Ptr[3]; // FALL THROUGH
+ case 3: OutBufCur[2] = Ptr[2]; // FALL THROUGH
+ case 2: OutBufCur[1] = Ptr[1]; // FALL THROUGH
+ case 1: OutBufCur[0] = Ptr[0]; // FALL THROUGH
+ case 0: break;
+ default:
+ // Normally the string to emit is shorter than the buffer.
+ if (Size <= unsigned(OutBufEnd-OutBufCur)) {
+ memcpy(OutBufCur, Ptr, Size);
+ break;
+ }
+
+ // Otherwise we are emitting a string larger than our buffer. We
+ // know we already flushed, so just write it out directly.
+ write_impl(Ptr, Size);
+ Size = 0;
+ break;
+ }
+ OutBufCur += Size;
+
+ return *this;
+}
+
+// Formatted output.
+raw_ostream &raw_ostream::operator<<(const format_object_base &Fmt) {
+ // If we have more than a few bytes left in our output buffer, try
+ // formatting directly onto its end.
+ //
+ // FIXME: This test is a bit silly, since if we don't have enough
+ // space in the buffer we will have to flush the formatted output
+ // anyway. We should just flush upfront in such cases, and use the
+ // whole buffer as our scratch pad. Note, however, that this case is
+ // also necessary for correctness on unbuffered streams.
+ unsigned NextBufferSize = 127;
+ if (OutBufEnd-OutBufCur > 3) {
+ unsigned BufferBytesLeft = OutBufEnd-OutBufCur;
+ unsigned BytesUsed = Fmt.print(OutBufCur, BufferBytesLeft);
+
+ // Common case is that we have plenty of space.
+ if (BytesUsed < BufferBytesLeft) {
+ OutBufCur += BytesUsed;
+ return *this;
+ }
+
+ // Otherwise, we overflowed and the return value tells us the size to try
+ // again with.
+ NextBufferSize = BytesUsed;
+ }
+
+ // If we got here, we didn't have enough space in the output buffer for the
+ // string. Try printing into a SmallVector that is resized to have enough
+ // space. Iterate until we win.
+ SmallVector<char, 128> V;
+
+ while (1) {
+ V.resize(NextBufferSize);
+
+ // Try formatting into the SmallVector.
+ unsigned BytesUsed = Fmt.print(&V[0], NextBufferSize);
+
+ // If BytesUsed fit into the vector, we win.
+ if (BytesUsed <= NextBufferSize)
+ return write(&V[0], BytesUsed);
+
+ // Otherwise, try again with a new size.
+ assert(BytesUsed > NextBufferSize && "Didn't grow buffer!?");
+ NextBufferSize = BytesUsed;
+ }
+}
+
+//===----------------------------------------------------------------------===//
+// Formatted Output
+//===----------------------------------------------------------------------===//
+
+// Out of line virtual method.
+void format_object_base::home() {
+}
+
//===----------------------------------------------------------------------===//
// raw_fd_ostream
//===----------------------------------------------------------------------===//
-/// raw_fd_ostream - Open the specified file for writing. If an error occurs,
-/// information about the error is put into ErrorInfo, and the stream should
-/// be immediately destroyed.
-raw_fd_ostream::raw_fd_ostream(const char *Filename, std::string &ErrorInfo) {
+/// raw_fd_ostream - Open the specified file for writing. If an error
+/// occurs, information about the error is put into ErrorInfo, and the
+/// stream should be immediately destroyed; the string will be empty
+/// if no error occurred.
+raw_fd_ostream::raw_fd_ostream(const char *Filename, bool Binary,
+ std::string &ErrorInfo) : pos(0) {
+ ErrorInfo.clear();
+
// Handle "-" as stdout.
if (Filename[0] == '-' && Filename[1] == 0) {
FD = STDOUT_FILENO;
+ // If user requested binary then put stdout into binary mode if
+ // possible.
+ if (Binary)
+ sys::Program::ChangeStdoutToBinary();
ShouldClose = false;
return;
}
- FD = open(Filename, O_WRONLY|O_CREAT|O_TRUNC, 0644);
+ int Flags = O_WRONLY|O_CREAT|O_TRUNC;
+#ifdef O_BINARY
+ if (Binary)
+ Flags |= O_BINARY;
+#endif
+ FD = open(Filename, Flags, 0644);
if (FD < 0) {
ErrorInfo = "Error opening output file '" + std::string(Filename) + "'";
ShouldClose = false;
}
raw_fd_ostream::~raw_fd_ostream() {
+ if (FD >= 0) {
+ flush();
+ if (ShouldClose)
+ ::close(FD);
+ }
+}
+
+void raw_fd_ostream::write_impl(const char *Ptr, unsigned Size) {
+ assert (FD >= 0 && "File already closed.");
+ pos += Size;
+ if (::write(FD, Ptr, Size) != (ssize_t) Size)
+ llvm_report_error("IO failure writing to output stream.");
+}
+
+void raw_fd_ostream::close() {
+ assert (ShouldClose);
+ ShouldClose = false;
+ flush();
+ ::close(FD);
+ FD = -1;
+}
+
+uint64_t raw_fd_ostream::seek(uint64_t off) {
flush();
- if (ShouldClose)
- close(FD);
+ pos = ::lseek(FD, off, SEEK_SET);
+ return pos;
+}
+
+raw_ostream &raw_fd_ostream::changeColor(enum Colors colors, bool bold,
+ bool bg) {
+ if (sys::Process::ColorNeedsFlush())
+ flush();
+ const char *colorcode =
+ (colors == SAVEDCOLOR) ? sys::Process::OutputBold(bg)
+ : sys::Process::OutputColor(colors, bold, bg);
+ if (colorcode) {
+ unsigned len = strlen(colorcode);
+ write(colorcode, len);
+ // don't account colors towards output characters
+ pos -= len;
+ }
+ return *this;
}
-void raw_fd_ostream::flush_impl() {
- if (OutBufCur-OutBufStart)
- ::write(FD, OutBufStart, OutBufCur-OutBufStart);
- HandleFlush();
+raw_ostream &raw_fd_ostream::resetColor() {
+ if (sys::Process::ColorNeedsFlush())
+ flush();
+ const char *colorcode = sys::Process::ResetColor();
+ if (colorcode) {
+ unsigned len = strlen(colorcode);
+ write(colorcode, len);
+ // don't account colors towards output characters
+ pos -= len;
+ }
+ return *this;
}
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
raw_stdout_ostream::raw_stdout_ostream():raw_fd_ostream(STDOUT_FILENO, false) {}
-raw_stderr_ostream::raw_stderr_ostream():raw_fd_ostream(STDERR_FILENO, false) {}
+raw_stderr_ostream::raw_stderr_ostream():raw_fd_ostream(STDERR_FILENO, false,
+ true) {}
// An out of line virtual method to provide a home for the class vtable.
void raw_stdout_ostream::handle() {}
/// outs() - This returns a reference to a raw_ostream for standard output.
/// Use it like: outs() << "foo" << "bar";
-raw_ostream &outs() {
+raw_ostream &llvm::outs() {
static raw_stdout_ostream S;
return S;
}
/// errs() - This returns a reference to a raw_ostream for standard error.
/// Use it like: errs() << "foo" << "bar";
-raw_ostream &errs() {
+raw_ostream &llvm::errs() {
static raw_stderr_ostream S;
return S;
}
// raw_os_ostream
//===----------------------------------------------------------------------===//
-/// flush_impl - The is the piece of the class that is implemented by
-/// subclasses. This outputs the currently buffered data and resets the
-/// buffer to empty.
-void raw_os_ostream::flush_impl() {
- if (OutBufCur-OutBufStart)
- OS.write(OutBufStart, OutBufCur-OutBufStart);
- HandleFlush();
+raw_os_ostream::~raw_os_ostream() {
+ flush();
+}
+
+void raw_os_ostream::write_impl(const char *Ptr, unsigned Size) {
+ OS.write(Ptr, Size);
+}
+
+uint64_t raw_os_ostream::current_pos() { return OS.tellp(); }
+
+uint64_t raw_os_ostream::tell() {
+ return (uint64_t)OS.tellp() + GetNumBytesInBuffer();
+}
+
+//===----------------------------------------------------------------------===//
+// raw_string_ostream
+//===----------------------------------------------------------------------===//
+
+raw_string_ostream::~raw_string_ostream() {
+ flush();
+}
+
+void raw_string_ostream::write_impl(const char *Ptr, unsigned Size) {
+ OS.append(Ptr, Size);
+}
+
+//===----------------------------------------------------------------------===//
+// raw_svector_ostream
+//===----------------------------------------------------------------------===//
+
+raw_svector_ostream::~raw_svector_ostream() {
+ flush();
+}
+
+void raw_svector_ostream::write_impl(const char *Ptr, unsigned Size) {
+ OS.append(Ptr, Ptr + Size);
+}
+
+uint64_t raw_svector_ostream::current_pos() { return OS.size(); }
+
+uint64_t raw_svector_ostream::tell() {
+ return OS.size() + GetNumBytesInBuffer();
}
projects / oota-llvm.git / blobdiff