diff options
Diffstat (limited to 'src/file.cc')
| -rw-r--r-- | src/file.cc | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/src/file.cc b/src/file.cc new file mode 100644 index 0000000..9ef6708 --- /dev/null +++ b/src/file.cc @@ -0,0 +1,62 @@ +// Copyright 2015 Google Inc. All rights reserved +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// +build ignore + +#include "file.h" + +#include <fcntl.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <unistd.h> + +#include "fileutil.h" +#include "log.h" +#include "parser.h" +#include "stmt.h" + +Makefile::Makefile(const string& filename) + : mtime_(0), filename_(filename), exists_(false) { + int fd = open(filename.c_str(), O_RDONLY); + if (fd < 0) { + return; + } + + struct stat st; + if (fstat(fd, &st) < 0) { + PERROR("fstat failed for %s", filename.c_str()); + } + + size_t len = st.st_size; + mtime_ = st.st_mtime; + buf_.resize(len); + exists_ = true; + ssize_t r = HANDLE_EINTR(read(fd, &buf_[0], len)); + if (r != static_cast<ssize_t>(len)) { + if (r < 0) + PERROR("read failed for %s", filename.c_str()); + ERROR("Unexpected read length=%zd expected=%zu", r, len); + } + + if (close(fd) < 0) { + PERROR("close failed for %s", filename.c_str()); + } + + Parse(this); +} + +Makefile::~Makefile() { + for (Stmt* stmt : stmts_) + delete stmt; +} |
