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/*
+----------------------------------------------------------------------+
| Swoole |
+----------------------------------------------------------------------+
| This source file is subject to version 2.0 of the Apache license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.apache.org/licenses/LICENSE-2.0.html |
| If you did not receive a copy of the Apache2.0 license and are unable|
| to obtain it through the world-wide-web, please send a note to |
| license@swoole.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Tianfeng Han <mikan.tenny@gmail.com> |
+----------------------------------------------------------------------+
*/
#pragma once
#include "swoole.h"
#include "swoole_string.h"
#include <sys/file.h>
#include <sys/stat.h>
#include <fcntl.h>
namespace swoole {
ssize_t file_get_size(FILE *fp);
ssize_t file_get_size(int fd);
ssize_t file_get_size(const std::string &filename);
std::shared_ptr<String> file_get_contents(const std::string &filename);
bool file_put_contents(const std::string &filename, const char *content, size_t length);
typedef struct stat FileStatus;
class File {
private:
int fd_;
int flags_;
std::string path_;
public:
enum Flag {
READ = O_RDONLY,
WRITE = O_WRONLY,
RW = O_RDWR,
CREATE = O_CREAT,
EXCL = O_EXCL,
APPEND = O_APPEND,
};
explicit File(int fd) {
fd_ = fd;
flags_ = 0;
}
File(int fd, const std::string &path) {
fd_ = fd;
path_ = path;
flags_ = 0;
}
File(const std::string &path, int oflags) {
fd_ = ::open(path.c_str(), oflags);
path_ = path;
flags_ = oflags;
}
File(const std::string &path, int oflags, int mode) {
fd_ = ::open(path.c_str(), oflags, mode);
path_ = path;
flags_ = oflags;
}
~File() {
if (fd_ >= 0) {
::close(fd_);
}
}
bool ready() {
return fd_ != -1;
}
ssize_t write(const void *__buf, size_t __n) const {
return ::write(fd_, __buf, __n);
}
ssize_t read(void *__buf, size_t __n) const {
return ::read(fd_, __buf, __n);
}
ssize_t pwrite(const void *__buf, size_t __n, off_t __offset) const {
return ::pwrite(fd_, __buf, __n, __offset);
}
ssize_t pread(void *__buf, size_t __n, off_t __offset) const {
return ::pread(fd_, __buf, __n, __offset);
}
size_t write_all(const void *__buf, size_t __n);
size_t read_all(void *__buf, size_t __n);
std::shared_ptr<String> read_content();
bool stat(FileStatus *_stat) const {
if (::fstat(fd_, _stat) < 0) {
swSysWarn("fstat() failed");
return false;
} else {
return true;
}
}
bool sync() {
return ::fsync(fd_) == 0;
}
bool truncate(size_t size) {
return ::ftruncate(fd_, size) == 0;
}
off_t set_offest(off_t offset) {
return lseek(fd_, offset, SEEK_SET);
}
off_t get_offset() {
return lseek(fd_, 0, SEEK_CUR);
}
bool lock(int operation) {
return ::flock(fd_, operation) == 0;
}
bool unlock() {
return ::flock(fd_, LOCK_UN) == 0;
}
ssize_t get_size() {
return file_get_size(fd_);
}
bool close() {
if (fd_ == -1) {
return false;
}
int tmp_fd = fd_;
fd_ = -1;
return ::close(tmp_fd) == 0;
}
void release() {
fd_ = -1;
}
int get_fd() {
return fd_;
}
const std::string &get_path() {
return path_;
}
static bool exists(const std::string &file) {
return access(file.c_str(), R_OK) == 0;
}
};
File make_tmpfile();
} // namespace swoole
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