1 #ifndef RUBY_IO_BUFFER_T
2 #define RUBY_IO_BUFFER_T 1
17 #include "ruby/internal/config.h"
22 #define RB_IO_BUFFER_EXPERIMENTAL 1
28 enum rb_io_buffer_flags {
31 RB_IO_BUFFER_EXTERNAL = 1,
33 RB_IO_BUFFER_INTERNAL = 2,
36 RB_IO_BUFFER_MAPPED = 4,
41 RB_IO_BUFFER_LOCKED = 32,
44 RB_IO_BUFFER_PRIVATE = 64,
47 RB_IO_BUFFER_READONLY = 128
50 enum rb_io_buffer_endian {
51 RB_IO_BUFFER_LITTLE_ENDIAN = 4,
52 RB_IO_BUFFER_BIG_ENDIAN = 8,
54 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
55 RB_IO_BUFFER_HOST_ENDIAN = RB_IO_BUFFER_LITTLE_ENDIAN,
56 #elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
57 RB_IO_BUFFER_HOST_ENDIAN = RB_IO_BUFFER_BIG_ENDIAN,
58 #elif REG_DWORD == REG_DWORD_LITTLE_ENDIAN
59 RB_IO_BUFFER_HOST_ENDIAN = RB_IO_BUFFER_LITTLE_ENDIAN,
60 #elif REG_DWORD == REG_DWORD_BIG_ENDIAN
61 RB_IO_BUFFER_HOST_ENDIAN = RB_IO_BUFFER_BIG_ENDIAN,
64 RB_IO_BUFFER_NETWORK_ENDIAN = RB_IO_BUFFER_BIG_ENDIAN
67 VALUE rb_io_buffer_new(
void *base,
size_t size,
enum rb_io_buffer_flags flags);
68 VALUE rb_io_buffer_map(
VALUE io,
size_t size, off_t offset,
enum rb_io_buffer_flags flags);
72 int rb_io_buffer_try_unlock(
VALUE self);
75 int rb_io_buffer_get_bytes(
VALUE self,
void **base,
size_t *size);
76 void rb_io_buffer_get_bytes_for_reading(
VALUE self,
const void **base,
size_t *size);
77 void rb_io_buffer_get_bytes_for_writing(
VALUE self,
void **base,
size_t *size);
80 void rb_io_buffer_resize(
VALUE self,
size_t size);
81 void rb_io_buffer_clear(
VALUE self, uint8_t value,
size_t offset,
size_t length);
85 VALUE rb_io_buffer_pread(
VALUE self,
VALUE io,
size_t length, off_t offset);
87 VALUE rb_io_buffer_pwrite(
VALUE self,
VALUE io,
size_t length, off_t offset);
#define RUBY_EXTERN
Declaration of externally visible global variables.
#define RBIMPL_SYMBOL_EXPORT_END()
Counterpart of RBIMPL_SYMBOL_EXPORT_BEGIN.
#define RBIMPL_SYMBOL_EXPORT_BEGIN()
Shortcut macro equivalent to RUBY_SYMBOL_EXPORT_BEGIN extern "C" {.
uintptr_t VALUE
Type that represents a Ruby object.