blob: c8bc9852875452d5910b8f6477a7d378a01a919f [file] [log] [blame]
#include "file.h"
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include "ast.h"
#include "log.h"
#include "parser.h"
Makefile::Makefile(const string& filename)
: buf_(NULL), len_(0), mtime_(0), filename_(filename) {
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());
}
len_ = st.st_size;
mtime_ = st.st_mtime;
buf_ = new char[len_];
ssize_t r = read(fd, buf_, 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() {
delete[] buf_;
for (AST* ast : asts_)
delete ast;
}