mirror of
https://github.com/mruby/mruby
synced 2026-06-08 16:11:16 +00:00
Yukihiro "Matz" Matsumoto
91727f38de
The original implementations used plain Ruby strings referenced from instance variable (`@buf`) as buffers. We replaced those buffers by C structure (`struct mrb_io_buf`) referenced directly from `fptr`. The result is significant improvement of both performance and memory consumption. Our simple benchmarks (reading `README.md` 10,000 times) runs 5+ times faster, and `mrbtest` test suites consumes 85% less memory. Recent changes on `mruby-io` is preparation for this improvement.
75 lines
1.9 KiB
C
75 lines
1.9 KiB
C
/*
|
|
** io.h - IO class
|
|
*/
|
|
|
|
#ifndef MRUBY_IO_H
|
|
#define MRUBY_IO_H
|
|
|
|
#include <mruby.h>
|
|
|
|
#ifdef MRB_NO_STDIO
|
|
# error IO and File conflicts 'MRB_NO_STDIO' in your build configuration
|
|
#endif
|
|
|
|
#if defined(__cplusplus)
|
|
extern "C" {
|
|
#endif
|
|
|
|
#if defined(MRB_WITHOUT_IO_PREAD_PWRITE)
|
|
# undef MRB_WITH_IO_PREAD_PWRITE
|
|
#elif !defined(MRB_WITH_IO_PREAD_PWRITE)
|
|
# if defined(__unix__) || defined(__MACH__)
|
|
# define MRB_WITH_IO_PREAD_PWRITE
|
|
# endif
|
|
#endif
|
|
|
|
#define MRB_IO_BUF_SIZE 4096
|
|
|
|
struct mrb_io_buf {
|
|
short start;
|
|
short len;
|
|
char mem[MRB_IO_BUF_SIZE];
|
|
};
|
|
|
|
struct mrb_io {
|
|
int fd; /* file descriptor, or -1 */
|
|
int fd2; /* file descriptor to write if it's different from fd, or -1 */
|
|
int pid; /* child's pid (for pipes) */
|
|
struct mrb_io_buf *buf;
|
|
unsigned int readable:1,
|
|
writable:1,
|
|
eof:1,
|
|
sync:1,
|
|
is_socket:1;
|
|
};
|
|
|
|
#define MRB_O_RDONLY 0x0000
|
|
#define MRB_O_WRONLY 0x0001
|
|
#define MRB_O_RDWR 0x0002
|
|
#define MRB_O_ACCMODE (MRB_O_RDONLY | MRB_O_WRONLY | MRB_O_RDWR)
|
|
#define MRB_O_NONBLOCK 0x0004
|
|
#define MRB_O_APPEND 0x0008
|
|
#define MRB_O_SYNC 0x0010
|
|
#define MRB_O_NOFOLLOW 0x0020
|
|
#define MRB_O_CREAT 0x0040
|
|
#define MRB_O_TRUNC 0x0080
|
|
#define MRB_O_EXCL 0x0100
|
|
#define MRB_O_NOCTTY 0x0200
|
|
#define MRB_O_DIRECT 0x0400
|
|
#define MRB_O_BINARY 0x0800
|
|
#define MRB_O_SHARE_DELETE 0x1000
|
|
#define MRB_O_TMPFILE 0x2000
|
|
#define MRB_O_NOATIME 0x4000
|
|
#define MRB_O_DSYNC 0x00008000
|
|
#define MRB_O_RSYNC 0x00010000
|
|
|
|
#define E_IO_ERROR (mrb_exc_get(mrb, "IOError"))
|
|
#define E_EOF_ERROR (mrb_exc_get(mrb, "EOFError"))
|
|
|
|
int mrb_io_fileno(mrb_state *mrb, mrb_value io);
|
|
|
|
#if defined(__cplusplus)
|
|
} /* extern "C" { */
|
|
#endif
|
|
#endif /* MRUBY_IO_H */
|