diff options
author | Kenneth Heafield <github@kheafield.com> | 2012-12-14 12:48:26 -0800 |
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committer | Kenneth Heafield <github@kheafield.com> | 2012-12-14 12:48:26 -0800 |
commit | 59737f22fccb9c2ab8744a719f4dbb95eedf7943 (patch) | |
tree | 37a66f5f5874f6cdb3c0cfc7201a705cd3159df6 /klm/util/file.cc | |
parent | de53e2e98acd0e2d07efb39bef430bd598908aa8 (diff) |
Updated kenlm
Diffstat (limited to 'klm/util/file.cc')
-rw-r--r-- | klm/util/file.cc | 38 |
1 files changed, 25 insertions, 13 deletions
diff --git a/klm/util/file.cc b/klm/util/file.cc index 6bf879ac..b9a77cf9 100644 --- a/klm/util/file.cc +++ b/klm/util/file.cc @@ -15,6 +15,8 @@ #if defined(_WIN32) || defined(_WIN64) #include <windows.h> #include <io.h> +#include <algorithm> +#include <limits.h> #else #include <unistd.h> #endif @@ -48,7 +50,7 @@ int OpenReadOrThrow(const char *name) { int CreateOrThrow(const char *name) { int ret; #if defined(_WIN32) || defined(_WIN64) - UTIL_THROW_IF(-1 == (ret = _open(name, _O_CREAT | _O_TRUNC | _O_RDWR, _S_IREAD | _S_IWRITE)), ErrnoException, "while creating " << name); + UTIL_THROW_IF(-1 == (ret = _open(name, _O_CREAT | _O_TRUNC | _O_RDWR | _O_BINARY, _S_IREAD | _S_IWRITE)), ErrnoException, "while creating " << name); #else UTIL_THROW_IF(-1 == (ret = open(name, O_CREAT | O_TRUNC | O_RDWR, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)), ErrnoException, "while creating " << name); #endif @@ -74,16 +76,22 @@ void ResizeOrThrow(int fd, uint64_t to) { #endif } -#ifdef WIN32 -typedef int ssize_t; +std::size_t PartialRead(int fd, void *to, std::size_t amount) { +#if defined(_WIN32) || defined(_WIN64) + amount = min(static_cast<std::size_t>(INT_MAX), amount); + int ret = _read(fd, to, amount); +#else + ssize_t ret = read(fd, to, amount); #endif + UTIL_THROW_IF(ret < 0, ErrnoException, "Reading " << amount << " from fd " << fd << " failed."); + return static_cast<std::size_t>(ret); +} void ReadOrThrow(int fd, void *to_void, std::size_t amount) { uint8_t *to = static_cast<uint8_t*>(to_void); while (amount) { - ssize_t ret = read(fd, to, amount); - UTIL_THROW_IF(ret == -1, ErrnoException, "Reading " << amount << " from fd " << fd << " failed."); - UTIL_THROW_IF(ret == 0, EndOfFileException, "Hit EOF in fd " << fd << " but there should be " << amount << " more bytes to read."); + std::size_t ret = PartialRead(fd, to, amount); + UTIL_THROW_IF(ret == 0, EndOfFileException, " in fd " << fd << " but there should be " << amount << " more bytes to read."); amount -= ret; to += ret; } @@ -93,8 +101,7 @@ std::size_t ReadOrEOF(int fd, void *to_void, std::size_t amount) { uint8_t *to = static_cast<uint8_t*>(to_void); std::size_t remaining = amount; while (remaining) { - ssize_t ret = read(fd, to, remaining); - UTIL_THROW_IF(ret == -1, ErrnoException, "Reading " << remaining << " from fd " << fd << " failed."); + std::size_t ret = PartialRead(fd, to, remaining); if (!ret) return amount - remaining; remaining -= ret; to += ret; @@ -105,7 +112,11 @@ std::size_t ReadOrEOF(int fd, void *to_void, std::size_t amount) { void WriteOrThrow(int fd, const void *data_void, std::size_t size) { const uint8_t *data = static_cast<const uint8_t*>(data_void); while (size) { +#if defined(_WIN32) || defined(_WIN64) + int ret = write(fd, data, min(static_cast<std::size_t>(INT_MAX), size)); +#else ssize_t ret = write(fd, data, size); +#endif if (ret < 1) UTIL_THROW(util::ErrnoException, "Write failed"); data += ret; size -= ret; @@ -114,7 +125,7 @@ void WriteOrThrow(int fd, const void *data_void, std::size_t size) { void WriteOrThrow(FILE *to, const void *data, std::size_t size) { assert(size); - if (1 != std::fwrite(data, size, 1, to)) UTIL_THROW(util::ErrnoException, "Short write; requested size " << size); + UTIL_THROW_IF(1 != std::fwrite(data, size, 1, to), util::ErrnoException, "Short write; requested size " << size); } void FSyncOrThrow(int fd) { @@ -149,14 +160,15 @@ void SeekEnd(int fd) { std::FILE *FDOpenOrThrow(scoped_fd &file) { std::FILE *ret = fdopen(file.get(), "r+b"); - if (!ret) UTIL_THROW(util::ErrnoException, "Could not fdopen"); + if (!ret) UTIL_THROW(util::ErrnoException, "Could not fdopen descriptor " << file.get()); file.release(); return ret; } -std::FILE *FOpenOrThrow(const char *path, const char *mode) { - std::FILE *ret; - UTIL_THROW_IF(!(ret = fopen(path, mode)), util::ErrnoException, "Could not fopen " << path << " for " << mode); +std::FILE *FDOpenReadOrThrow(scoped_fd &file) { + std::FILE *ret = fdopen(file.get(), "rb"); + if (!ret) UTIL_THROW(util::ErrnoException, "Could not fdopen descriptor " << file.get()); + file.release(); return ret; } |