//
// The LLVM Compiler Infrastructure
//
-// This file was developed by Reid Spencer and is distributed under the
-// University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//===----------------------------------------------------------------------===//
#include "llvm/Config/config.h" // Get autoconf configuration settings
+#include "llvm/System/Errno.h"
#include <cstdlib>
#include <cstdio>
#include <cstring>
# define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
#endif
-inline bool GetErrno(const std::string &prefix, std::string *ErrDest,
- int errnum = -1) {
- char buffer[MAXPATHLEN];
-
- if (ErrDest == 0) return true;
-
- buffer[0] = 0;
- if (errnum == -1)
- errnum = errno;
-#ifdef HAVE_STRERROR_R
- // strerror_r is thread-safe.
- if (errnum)
- strerror_r(errnum, buffer, MAXPATHLEN-1);
-#elif HAVE_STRERROR
- // Copy the thread un-safe result of strerror into
- // the buffer as fast as possible to minimize impact
- // of collision of strerror in multiple threads.
- if (errnum)
- strncpy(buffer, strerror(errnum), MAXPATHLEN-1);
- buffer[MAXPATHLEN-1] = 0;
-#else
- // Strange that this system doesn't even have strerror
- // but, oh well, just use a generic message
- sprintf(buffer, "Error #%d", errnum);
-#endif
- *ErrDest = prefix + ": " + buffer;
- return true;
-}
-
-inline void ThrowErrno(const std::string& prefix, int errnum = -1) {
- char buffer[MAXPATHLEN];
- buffer[0] = 0;
- if (errnum == -1)
- errnum = errno;
-#ifdef HAVE_STRERROR_R
- // strerror_r is thread-safe.
- if (errnum)
- strerror_r(errnum,buffer,MAXPATHLEN-1);
-#elif HAVE_STRERROR
- // Copy the thread un-safe result of strerror into
- // the buffer as fast as possible to minimize impact
- // of collision of strerror in multiple threads.
- if (errnum)
- strncpy(buffer,strerror(errnum),MAXPATHLEN-1);
- buffer[MAXPATHLEN-1] = 0;
-#else
- // Strange that this system doesn't even have strerror
- // but, oh well, just use a generic message
- sprintf(buffer, "Error #%d", errnum);
-#endif
- throw prefix + ": " + buffer;
-}
-
/// This function builds an error message into \p ErrMsg using the \p prefix
/// string and the Unix error number given by \p errnum. If errnum is -1, the
/// default then the value of errno is used.
/// @brief Make an error message
-inline void MakeErrMsg(
+///
+/// If the error number can be converted to a string, it will be
+/// separated from prefix by ": ".
+static inline bool MakeErrMsg(
std::string* ErrMsg, const std::string& prefix, int errnum = -1) {
if (!ErrMsg)
- return;
- char buffer[MAXPATHLEN];
- buffer[0] = 0;
+ return true;
if (errnum == -1)
errnum = errno;
-#ifdef HAVE_STRERROR_R
- // strerror_r is thread-safe.
- if (errnum)
- strerror_r(errnum,buffer,MAXPATHLEN-1);
-#elif HAVE_STRERROR
- // Copy the thread un-safe result of strerror into
- // the buffer as fast as possible to minimize impact
- // of collision of strerror in multiple threads.
- if (errnum)
- strncpy(buffer,strerror(errnum),MAXPATHLEN-1);
- buffer[MAXPATHLEN-1] = 0;
-#else
- // Strange that this system doesn't even have strerror
- // but, oh well, just use a generic message
- sprintf(buffer, "Error #%d", errnum);
-#endif
- *ErrMsg = buffer;
+ *ErrMsg = prefix + ": " + llvm::sys::StrError(errnum);
+ return true;
}
#endif