diff options
Diffstat (limited to 'source/Host/common/File.cpp')
| -rw-r--r-- | source/Host/common/File.cpp | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/source/Host/common/File.cpp b/source/Host/common/File.cpp index c0d3c290f4c7..addd43515405 100644 --- a/source/Host/common/File.cpp +++ b/source/Host/common/File.cpp @@ -16,6 +16,10 @@ #include <stdarg.h> #include <sys/stat.h> +#ifdef _WIN32 +#include "lldb/Host/windows/windows.h" +#endif + #include "lldb/Core/DataBufferHeap.h" #include "lldb/Core/Error.h" #include "lldb/Host/Config.h" @@ -79,6 +83,20 @@ File::File(const char *path, uint32_t options, uint32_t permissions) : Open (path, options, permissions); } +File::File (const FileSpec& filespec, + uint32_t options, + uint32_t permissions) : + m_descriptor (kInvalidDescriptor), + m_stream (kInvalidStream), + m_options (0), + m_owned (false) +{ + if (filespec) + { + Open (filespec.GetPath().c_str(), options, permissions); + } +} + File::File (const File &rhs) : m_descriptor (kInvalidDescriptor), m_stream (kInvalidStream), @@ -167,7 +185,11 @@ File::Duplicate (const File &rhs) if (rhs.DescriptorIsValid()) { +#ifdef _WIN32 + m_descriptor = ::_dup(rhs.GetDescriptor()); +#else m_descriptor = ::fcntl(rhs.GetDescriptor(), F_DUPFD); +#endif if (!DescriptorIsValid()) error.SetErrorToErrno(); else @@ -217,8 +239,12 @@ File::Open (const char *path, uint32_t options, uint32_t permissions) oflag |= O_RDONLY; } +#ifndef _WIN32 if (options & eOpenOptionNonBlocking) oflag |= O_NONBLOCK; +#else + oflag |= O_BINARY; +#endif mode_t mode = 0; if (oflag & O_CREAT) @@ -247,6 +273,53 @@ File::Open (const char *path, uint32_t options, uint32_t permissions) return error; } +uint32_t +File::GetPermissions (const char *path, Error &error) +{ + if (path && path[0]) + { + struct stat file_stats; + if (::stat (path, &file_stats) == -1) + error.SetErrorToErrno(); + else + { + error.Clear(); + return file_stats.st_mode; // All bits from lldb_private::File::Permissions match those in POSIX mode bits + } + } + else + { + if (path) + error.SetErrorString ("invalid path"); + else + error.SetErrorString ("empty path"); + } + return 0; +} + +uint32_t +File::GetPermissions(Error &error) const +{ + int fd = GetDescriptor(); + if (fd != kInvalidDescriptor) + { + struct stat file_stats; + if (::fstat (fd, &file_stats) == -1) + error.SetErrorToErrno(); + else + { + error.Clear(); + return file_stats.st_mode; // All bits from lldb_private::File::Permissions match those in POSIX mode bits + } + } + else + { + error.SetErrorString ("invalid file descriptor"); + } + return 0; +} + + Error File::Close () { @@ -452,6 +525,11 @@ File::Sync () Error error; if (DescriptorIsValid()) { +#ifdef _WIN32 + int err = FlushFileBuffers((HANDLE)_get_osfhandle(m_descriptor)); + if (err == 0) + error.SetErrorToGenericError(); +#else int err = 0; do { @@ -460,6 +538,7 @@ File::Sync () if (err == -1) error.SetErrorToErrno(); +#endif } else { @@ -559,6 +638,7 @@ File::Write (const void *buf, size_t &num_bytes) Error File::Read (void *buf, size_t &num_bytes, off_t &offset) { +#ifndef _WIN32 Error error; int fd = GetDescriptor(); if (fd != kInvalidDescriptor) @@ -586,6 +666,14 @@ File::Read (void *buf, size_t &num_bytes, off_t &offset) error.SetErrorString("invalid file handle"); } return error; +#else + long cur = ::lseek(m_descriptor, 0, SEEK_CUR); + SeekFromStart(offset); + Error error = Read(buf, num_bytes); + if (!error.Fail()) + SeekFromStart(cur); + return error; +#endif } Error @@ -648,6 +736,7 @@ File::Write (const void *buf, size_t &num_bytes, off_t &offset) int fd = GetDescriptor(); if (fd != kInvalidDescriptor) { +#ifndef _WIN32 ssize_t bytes_written = -1; do { @@ -664,6 +753,17 @@ File::Write (const void *buf, size_t &num_bytes, off_t &offset) offset += bytes_written; num_bytes = bytes_written; } +#else + long cur = ::lseek(m_descriptor, 0, SEEK_CUR); + error = Write(buf, num_bytes); + long after = ::lseek(m_descriptor, 0, SEEK_CUR); + + if (!error.Fail()) + SeekFromStart(cur); + + ssize_t bytes_written = after - cur; + offset = after; +#endif } else { @@ -714,3 +814,29 @@ File::PrintfVarArg (const char *format, va_list args) } return result; } + +mode_t +File::ConvertOpenOptionsForPOSIXOpen (uint32_t open_options) +{ + mode_t mode = 0; + if (open_options & eOpenOptionRead && open_options & eOpenOptionWrite) + mode |= O_RDWR; + else if (open_options & eOpenOptionWrite) + mode |= O_WRONLY; + + if (open_options & eOpenOptionAppend) + mode |= O_APPEND; + + if (open_options & eOpenOptionTruncate) + mode |= O_TRUNC; + + if (open_options & eOpenOptionNonBlocking) + mode |= O_NONBLOCK; + + if (open_options & eOpenOptionCanCreateNewOnly) + mode |= O_CREAT | O_EXCL; + else if (open_options & eOpenOptionCanCreate) + mode |= O_CREAT; + + return mode; +} |