mirror of
https://github.com/mruby/mruby
synced 2026-06-08 16:11:16 +00:00
Yukihiro "Matz" Matsumoto
492d8331e1
The `sizeof(struct mrb_io)` is reduced from 32 bytes to 24 bytes on x86_64-linux.
78 lines
2.0 KiB
C
78 lines
2.0 KiB
C
/*
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** io.h - IO class
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*/
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#ifndef MRUBY_IO_H
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#define MRUBY_IO_H
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#include <mruby.h>
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#include <mruby/presym.h>
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#ifdef MRB_NO_STDIO
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# error IO and File conflicts 'MRB_NO_STDIO' in your build configuration
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#endif
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#if defined(__cplusplus)
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extern "C" {
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#endif
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#if defined(MRB_WITHOUT_IO_PREAD_PWRITE)
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# undef MRB_WITH_IO_PREAD_PWRITE
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#elif !defined(MRB_WITH_IO_PREAD_PWRITE)
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# if defined(__unix__) || defined(__MACH__)
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# define MRB_WITH_IO_PREAD_PWRITE
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# endif
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#endif
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#define MRB_IO_BUF_SIZE 4096
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struct mrb_io_buf {
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short start;
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short len;
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char mem[MRB_IO_BUF_SIZE];
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};
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struct mrb_io {
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unsigned int readable:1,
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writable:1,
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eof:1,
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sync:1,
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is_socket:1,
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close_fd:1,
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close_fd2:1;
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int fd; /* file descriptor, or -1 */
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int fd2; /* file descriptor to write if it's different from fd, or -1 */
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int pid; /* child's pid (for pipes) */
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struct mrb_io_buf *buf;
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};
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#define MRB_O_RDONLY 0x0000
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#define MRB_O_WRONLY 0x0001
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#define MRB_O_RDWR 0x0002
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#define MRB_O_ACCMODE (MRB_O_RDONLY | MRB_O_WRONLY | MRB_O_RDWR)
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#define MRB_O_NONBLOCK 0x0004
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#define MRB_O_APPEND 0x0008
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#define MRB_O_SYNC 0x0010
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#define MRB_O_NOFOLLOW 0x0020
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#define MRB_O_CREAT 0x0040
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#define MRB_O_TRUNC 0x0080
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#define MRB_O_EXCL 0x0100
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#define MRB_O_NOCTTY 0x0200
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#define MRB_O_DIRECT 0x0400
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#define MRB_O_BINARY 0x0800
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#define MRB_O_SHARE_DELETE 0x1000
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#define MRB_O_TMPFILE 0x2000
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#define MRB_O_NOATIME 0x4000
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#define MRB_O_DSYNC 0x00008000
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#define MRB_O_RSYNC 0x00010000
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#define E_IO_ERROR mrb_exc_get_id(mrb, MRB_SYM(IOError))
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#define E_EOF_ERROR mrb_exc_get_id(mrb, MRB_SYM(EOFError))
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int mrb_io_fileno(mrb_state *mrb, mrb_value io);
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#if defined(__cplusplus)
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} /* extern "C" { */
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#endif
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#endif /* MRUBY_IO_H */
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