[439] | 1 | /*
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| 2 | ** io.c - IO class
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| 3 | */
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| 4 |
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| 5 | #include "mruby.h"
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| 6 | #include "mruby/array.h"
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| 7 | #include "mruby/class.h"
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| 8 | #include "mruby/data.h"
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| 9 | #include "mruby/hash.h"
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| 10 | #include "mruby/string.h"
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| 11 | #include "mruby/variable.h"
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| 12 | #include "mruby/ext/io.h"
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| 13 | #include "mruby/error.h"
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| 14 |
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| 15 | #if defined(AZURE_SPHERE)
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| 16 | #define _GNU_SOURCE
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| 17 | #include <stdlib.h>
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| 18 | #endif
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| 19 | #include <sys/types.h>
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| 20 | #if !defined(AZURE_SPHERE)
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| 21 | #include <sys/stat.h>
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| 22 | #endif
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| 23 |
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| 24 | #if defined(_WIN32) || defined(_WIN64)
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| 25 | #include <winsock.h>
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| 26 | #include <io.h>
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| 27 | #define open _open
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| 28 | #define close _close
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| 29 | #define dup _dup
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| 30 | #define dup2 _dup2
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| 31 | #define read _read
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| 32 | #define write _write
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| 33 | #define lseek _lseek
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| 34 | #define isatty _isatty
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| 35 | #define WEXITSTATUS(x) (x)
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| 36 | typedef int fsize_t;
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| 37 | #ifdef _WIN64
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| 38 | typedef signed __int64 ssize_t;
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| 39 | #else /* _WIN64 */
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| 40 | typedef signed int ssize_t;
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| 41 | #endif /* _WIN64 */
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| 42 | typedef long ftime_t;
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| 43 | typedef long fsuseconds_t;
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| 44 | typedef int fmode_t;
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| 45 | typedef int mrb_io_read_write_size;
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| 46 |
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| 47 | #ifndef O_TMPFILE
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| 48 | #define O_TMPFILE O_TEMPORARY
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| 49 | #endif
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| 50 |
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| 51 | #else
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| 52 | #if !defined(AZURE_SPHERE)
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| 53 | #include <sys/wait.h>
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| 54 | #endif
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| 55 | #include <unistd.h>
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| 56 | typedef size_t fsize_t;
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| 57 | typedef time_t ftime_t;
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| 58 | typedef suseconds_t fsuseconds_t;
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| 59 | typedef mode_t fmode_t;
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| 60 | typedef ssize_t mrb_io_read_write_size;
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| 61 | #endif
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| 62 |
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| 63 | #ifdef _MSC_VER
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| 64 | typedef mrb_int pid_t;
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| 65 | #endif
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| 66 |
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| 67 | #include <fcntl.h>
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| 68 |
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| 69 | #include <errno.h>
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| 70 | #include <string.h>
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| 71 |
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| 72 | #if defined(AZURE_SPHERE)
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| 73 | pid_t fork(void);
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| 74 | int execl(const char *, const char *, ...);
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| 75 | _Noreturn void _exit(int);
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| 76 | int isatty(int);
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| 77 | int open(const char *, int, ...);
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| 78 | #define O_RDONLY 00
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| 79 | #define O_WRONLY 01
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| 80 | #define O_RDWR 02
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| 81 | #define O_CREAT 0100
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| 82 | #define O_EXCL 0200
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| 83 | #define O_TRUNC 01000
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| 84 | #define O_APPEND 02000
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| 85 |
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| 86 | pid_t waitpid(pid_t pid, int *status, int options);
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| 87 | #endif
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| 88 |
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| 89 | #define OPEN_ACCESS_MODE_FLAGS (O_RDONLY | O_WRONLY | O_RDWR)
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| 90 | #define OPEN_RDONLY_P(f) ((mrb_bool)(((f) & OPEN_ACCESS_MODE_FLAGS) == O_RDONLY))
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| 91 | #define OPEN_WRONLY_P(f) ((mrb_bool)(((f) & OPEN_ACCESS_MODE_FLAGS) == O_WRONLY))
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| 92 | #define OPEN_RDWR_P(f) ((mrb_bool)(((f) & OPEN_ACCESS_MODE_FLAGS) == O_RDWR))
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| 93 | #define OPEN_READABLE_P(f) ((mrb_bool)(OPEN_RDONLY_P(f) || OPEN_RDWR_P(f)))
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| 94 | #define OPEN_WRITABLE_P(f) ((mrb_bool)(OPEN_WRONLY_P(f) || OPEN_RDWR_P(f)))
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| 95 |
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| 96 | static void mrb_io_free(mrb_state *mrb, void *ptr);
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| 97 | struct mrb_data_type mrb_io_type = { "IO", mrb_io_free };
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| 98 |
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| 99 |
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| 100 | static struct mrb_io *io_get_open_fptr(mrb_state *mrb, mrb_value self);
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| 101 | static int mrb_io_modestr_to_flags(mrb_state *mrb, const char *modestr);
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| 102 | static int mrb_io_mode_to_flags(mrb_state *mrb, mrb_value mode);
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| 103 | static void fptr_finalize(mrb_state *mrb, struct mrb_io *fptr, int quiet);
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| 104 |
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| 105 | static struct mrb_io *
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| 106 | io_get_open_fptr(mrb_state *mrb, mrb_value self)
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| 107 | {
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| 108 | struct mrb_io *fptr;
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| 109 |
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| 110 | fptr = (struct mrb_io *)mrb_data_get_ptr(mrb, self, &mrb_io_type);
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| 111 | if (fptr == NULL) {
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| 112 | mrb_raise(mrb, E_IO_ERROR, "uninitialized stream.");
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| 113 | }
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| 114 | if (fptr->fd < 0) {
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| 115 | mrb_raise(mrb, E_IO_ERROR, "closed stream.");
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| 116 | }
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| 117 | return fptr;
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| 118 | }
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| 119 |
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| 120 | static void
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| 121 | io_set_process_status(mrb_state *mrb, pid_t pid, int status)
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| 122 | {
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| 123 | struct RClass *c_process, *c_status;
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| 124 | mrb_value v;
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| 125 |
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| 126 | c_status = NULL;
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| 127 | if (mrb_class_defined(mrb, "Process")) {
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| 128 | c_process = mrb_module_get(mrb, "Process");
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| 129 | if (mrb_const_defined(mrb, mrb_obj_value(c_process), mrb_intern_cstr(mrb, "Status"))) {
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| 130 | c_status = mrb_class_get_under(mrb, c_process, "Status");
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| 131 | }
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| 132 | }
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| 133 | if (c_status != NULL) {
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| 134 | v = mrb_funcall(mrb, mrb_obj_value(c_status), "new", 2, mrb_fixnum_value(pid), mrb_fixnum_value(status));
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| 135 | } else {
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| 136 | v = mrb_fixnum_value(WEXITSTATUS(status));
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| 137 | }
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| 138 | mrb_gv_set(mrb, mrb_intern_cstr(mrb, "$?"), v);
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| 139 | }
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| 140 |
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| 141 | static int
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| 142 | mrb_io_modestr_to_flags(mrb_state *mrb, const char *mode)
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| 143 | {
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| 144 | int flags;
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| 145 | const char *m = mode;
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| 146 |
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| 147 | switch (*m++) {
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| 148 | case 'r':
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| 149 | flags = O_RDONLY;
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| 150 | break;
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| 151 | case 'w':
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| 152 | flags = O_WRONLY | O_CREAT | O_TRUNC;
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| 153 | break;
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| 154 | case 'a':
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| 155 | flags = O_WRONLY | O_CREAT | O_APPEND;
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| 156 | break;
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| 157 | default:
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| 158 | mrb_raisef(mrb, E_ARGUMENT_ERROR, "illegal access mode %s", mode);
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| 159 | flags = 0; /* not reached */
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| 160 | }
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| 161 |
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| 162 | while (*m) {
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| 163 | switch (*m++) {
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| 164 | case 'b':
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| 165 | #ifdef O_BINARY
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| 166 | flags |= O_BINARY;
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| 167 | #endif
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| 168 | break;
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| 169 | case '+':
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| 170 | flags = (flags & ~OPEN_ACCESS_MODE_FLAGS) | O_RDWR;
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| 171 | break;
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| 172 | case ':':
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| 173 | /* XXX: PASSTHROUGH*/
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| 174 | default:
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| 175 | mrb_raisef(mrb, E_ARGUMENT_ERROR, "illegal access mode %s", mode);
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| 176 | }
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| 177 | }
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| 178 |
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| 179 | return flags;
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| 180 | }
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| 181 |
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| 182 | static int
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| 183 | mrb_io_mode_to_flags(mrb_state *mrb, mrb_value mode)
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| 184 | {
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| 185 | if (mrb_nil_p(mode)) {
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| 186 | return mrb_io_modestr_to_flags(mrb, "r");
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| 187 | }
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| 188 | else if (mrb_string_p(mode)) {
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| 189 | return mrb_io_modestr_to_flags(mrb, RSTRING_CSTR(mrb, mode));
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| 190 | }
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| 191 | else {
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| 192 | int flags = 0;
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| 193 | mrb_int flags0 = mrb_int(mrb, mode);
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| 194 |
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| 195 | switch (flags0 & MRB_O_ACCMODE) {
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| 196 | case MRB_O_RDONLY:
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| 197 | flags |= O_RDONLY;
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| 198 | break;
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| 199 | case MRB_O_WRONLY:
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| 200 | flags |= O_WRONLY;
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| 201 | break;
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| 202 | case MRB_O_RDWR:
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| 203 | flags |= O_RDWR;
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| 204 | break;
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| 205 | default:
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| 206 | mrb_raisef(mrb, E_ARGUMENT_ERROR, "illegal access mode %v", mode);
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| 207 | }
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| 208 |
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| 209 | if (flags0 & MRB_O_APPEND) flags |= O_APPEND;
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| 210 | if (flags0 & MRB_O_CREAT) flags |= O_CREAT;
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| 211 | if (flags0 & MRB_O_EXCL) flags |= O_EXCL;
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| 212 | if (flags0 & MRB_O_TRUNC) flags |= O_TRUNC;
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| 213 | #ifdef O_NONBLOCK
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| 214 | if (flags0 & MRB_O_NONBLOCK) flags |= O_NONBLOCK;
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| 215 | #endif
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| 216 | #ifdef O_NOCTTY
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| 217 | if (flags0 & MRB_O_NOCTTY) flags |= O_NOCTTY;
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| 218 | #endif
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| 219 | #ifdef O_BINARY
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| 220 | if (flags0 & MRB_O_BINARY) flags |= O_BINARY;
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| 221 | #endif
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| 222 | #ifdef O_SHARE_DELETE
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| 223 | if (flags0 & MRB_O_SHARE_DELETE) flags |= O_SHARE_DELETE;
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| 224 | #endif
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| 225 | #ifdef O_SYNC
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| 226 | if (flags0 & MRB_O_SYNC) flags |= O_SYNC;
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| 227 | #endif
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| 228 | #ifdef O_DSYNC
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| 229 | if (flags0 & MRB_O_DSYNC) flags |= O_DSYNC;
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| 230 | #endif
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| 231 | #ifdef O_RSYNC
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| 232 | if (flags0 & MRB_O_RSYNC) flags |= O_RSYNC;
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| 233 | #endif
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| 234 | #ifdef O_NOFOLLOW
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| 235 | if (flags0 & MRB_O_NOFOLLOW) flags |= O_NOFOLLOW;
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| 236 | #endif
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| 237 | #ifdef O_NOATIME
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| 238 | if (flags0 & MRB_O_NOATIME) flags |= O_NOATIME;
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| 239 | #endif
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| 240 | #ifdef O_DIRECT
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| 241 | if (flags0 & MRB_O_DIRECT) flags |= O_DIRECT;
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| 242 | #endif
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| 243 | #ifdef O_TMPFILE
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| 244 | if (flags0 & MRB_O_TMPFILE) flags |= O_TMPFILE;
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| 245 | #endif
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| 246 |
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| 247 | return flags;
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| 248 | }
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| 249 | }
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| 250 |
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| 251 | static void
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| 252 | mrb_fd_cloexec(mrb_state *mrb, int fd)
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| 253 | {
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| 254 | #if defined(F_GETFD) && defined(F_SETFD) && defined(FD_CLOEXEC)
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| 255 | int flags, flags2;
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| 256 |
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| 257 | flags = fcntl(fd, F_GETFD);
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| 258 | if (flags == -1) {
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| 259 | mrb_bug(mrb, "mrb_fd_cloexec: fcntl(%d, F_GETFD) failed: %d", fd, errno);
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| 260 | }
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| 261 | if (fd <= 2) {
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| 262 | flags2 = flags & ~FD_CLOEXEC; /* Clear CLOEXEC for standard file descriptors: 0, 1, 2. */
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| 263 | }
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| 264 | else {
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| 265 | flags2 = flags | FD_CLOEXEC; /* Set CLOEXEC for non-standard file descriptors: 3, 4, 5, ... */
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| 266 | }
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| 267 | if (flags != flags2) {
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| 268 | if (fcntl(fd, F_SETFD, flags2) == -1) {
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| 269 | mrb_bug(mrb, "mrb_fd_cloexec: fcntl(%d, F_SETFD, %d) failed: %d", fd, flags2, errno);
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| 270 | }
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| 271 | }
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| 272 | #endif
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| 273 | }
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| 274 |
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| 275 | #if !defined(_WIN32) && !(defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)
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| 276 | static int
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| 277 | mrb_cloexec_pipe(mrb_state *mrb, int fildes[2])
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| 278 | {
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| 279 | int ret;
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| 280 | ret = pipe(fildes);
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| 281 | if (ret == -1)
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| 282 | return -1;
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| 283 | mrb_fd_cloexec(mrb, fildes[0]);
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| 284 | mrb_fd_cloexec(mrb, fildes[1]);
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| 285 | return ret;
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| 286 | }
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| 287 |
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| 288 | static int
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| 289 | mrb_pipe(mrb_state *mrb, int pipes[2])
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| 290 | {
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| 291 | int ret;
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| 292 | ret = mrb_cloexec_pipe(mrb, pipes);
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| 293 | if (ret == -1) {
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| 294 | if (errno == EMFILE || errno == ENFILE) {
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| 295 | mrb_garbage_collect(mrb);
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| 296 | ret = mrb_cloexec_pipe(mrb, pipes);
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| 297 | }
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| 298 | }
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| 299 | return ret;
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| 300 | }
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| 301 |
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| 302 | static int
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| 303 | mrb_proc_exec(const char *pname)
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| 304 | {
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| 305 | const char *s;
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| 306 | s = pname;
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| 307 |
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| 308 | while (*s == ' ' || *s == '\t' || *s == '\n')
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| 309 | s++;
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| 310 |
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| 311 | if (!*s) {
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| 312 | errno = ENOENT;
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| 313 | return -1;
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| 314 | }
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| 315 |
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| 316 | execl("/bin/sh", "sh", "-c", pname, (char *)NULL);
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| 317 | return -1;
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| 318 | }
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| 319 | #endif
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| 320 |
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| 321 | static void
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| 322 | mrb_io_free(mrb_state *mrb, void *ptr)
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| 323 | {
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| 324 | struct mrb_io *io = (struct mrb_io *)ptr;
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| 325 | if (io != NULL) {
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| 326 | fptr_finalize(mrb, io, TRUE);
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| 327 | mrb_free(mrb, io);
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| 328 | }
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| 329 | }
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| 330 |
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| 331 | static struct mrb_io *
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| 332 | mrb_io_alloc(mrb_state *mrb)
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| 333 | {
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| 334 | struct mrb_io *fptr;
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| 335 |
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| 336 | fptr = (struct mrb_io *)mrb_malloc(mrb, sizeof(struct mrb_io));
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| 337 | fptr->fd = -1;
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| 338 | fptr->fd2 = -1;
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| 339 | fptr->pid = 0;
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| 340 | fptr->readable = 0;
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| 341 | fptr->writable = 0;
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| 342 | fptr->sync = 0;
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| 343 | fptr->is_socket = 0;
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| 344 | return fptr;
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| 345 | }
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| 346 |
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| 347 | #ifndef NOFILE
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| 348 | #define NOFILE 64
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| 349 | #endif
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| 350 |
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| 351 | static int
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| 352 | option_to_fd(mrb_state *mrb, mrb_value hash, const char *key)
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| 353 | {
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| 354 | mrb_value opt;
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| 355 |
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| 356 | if (!mrb_hash_p(hash)) return -1;
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| 357 | opt = mrb_hash_fetch(mrb, hash, mrb_symbol_value(mrb_intern_static(mrb, key, strlen(key))), mrb_nil_value());
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| 358 | if (mrb_nil_p(opt)) return -1;
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| 359 |
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| 360 | switch (mrb_type(opt)) {
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| 361 | case MRB_TT_DATA: /* IO */
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| 362 | return mrb_io_fileno(mrb, opt);
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| 363 | case MRB_TT_FIXNUM:
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| 364 | return (int)mrb_fixnum(opt);
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| 365 | default:
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| 366 | mrb_raise(mrb, E_ARGUMENT_ERROR, "wrong exec redirect action");
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| 367 | break;
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| 368 | }
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| 369 | return -1; /* never reached */
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| 370 | }
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| 371 |
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| 372 | #ifdef _WIN32
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| 373 | mrb_value
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| 374 | mrb_io_s_popen(mrb_state *mrb, mrb_value klass)
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| 375 | {
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| 376 | mrb_value cmd, io;
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| 377 | mrb_value mode = mrb_str_new_cstr(mrb, "r");
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| 378 | mrb_value opt = mrb_hash_new(mrb);
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| 379 |
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| 380 | struct mrb_io *fptr;
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| 381 | const char *pname;
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| 382 | int pid = 0, flags;
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| 383 | STARTUPINFO si;
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| 384 | PROCESS_INFORMATION pi;
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| 385 | SECURITY_ATTRIBUTES saAttr;
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| 386 |
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| 387 | HANDLE ifd[2];
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| 388 | HANDLE ofd[2];
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| 389 |
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| 390 | int doexec;
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| 391 | int opt_in, opt_out, opt_err;
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| 392 |
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| 393 | ifd[0] = INVALID_HANDLE_VALUE;
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| 394 | ifd[1] = INVALID_HANDLE_VALUE;
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| 395 | ofd[0] = INVALID_HANDLE_VALUE;
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| 396 | ofd[1] = INVALID_HANDLE_VALUE;
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| 397 |
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| 398 | mrb_get_args(mrb, "S|oH", &cmd, &mode, &opt);
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| 399 | io = mrb_obj_value(mrb_data_object_alloc(mrb, mrb_class_ptr(klass), NULL, &mrb_io_type));
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| 400 |
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| 401 | pname = RSTRING_CSTR(mrb, cmd);
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| 402 | flags = mrb_io_mode_to_flags(mrb, mode);
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| 403 |
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| 404 | doexec = (strcmp("-", pname) != 0);
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| 405 | opt_in = option_to_fd(mrb, opt, "in");
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| 406 | opt_out = option_to_fd(mrb, opt, "out");
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| 407 | opt_err = option_to_fd(mrb, opt, "err");
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| 408 |
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| 409 | saAttr.nLength = sizeof(SECURITY_ATTRIBUTES);
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| 410 | saAttr.bInheritHandle = TRUE;
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| 411 | saAttr.lpSecurityDescriptor = NULL;
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| 412 |
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| 413 | if (OPEN_READABLE_P(flags)) {
|
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| 414 | if (!CreatePipe(&ofd[0], &ofd[1], &saAttr, 0)
|
---|
| 415 | || !SetHandleInformation(ofd[0], HANDLE_FLAG_INHERIT, 0)) {
|
---|
| 416 | mrb_sys_fail(mrb, "pipe");
|
---|
| 417 | }
|
---|
| 418 | }
|
---|
| 419 |
|
---|
| 420 | if (OPEN_WRITABLE_P(flags)) {
|
---|
| 421 | if (!CreatePipe(&ifd[0], &ifd[1], &saAttr, 0)
|
---|
| 422 | || !SetHandleInformation(ifd[1], HANDLE_FLAG_INHERIT, 0)) {
|
---|
| 423 | mrb_sys_fail(mrb, "pipe");
|
---|
| 424 | }
|
---|
| 425 | }
|
---|
| 426 |
|
---|
| 427 | if (doexec) {
|
---|
| 428 | ZeroMemory(&pi, sizeof(pi));
|
---|
| 429 | ZeroMemory(&si, sizeof(si));
|
---|
| 430 | si.cb = sizeof(si);
|
---|
| 431 | si.dwFlags |= STARTF_USESHOWWINDOW;
|
---|
| 432 | si.wShowWindow = SW_HIDE;
|
---|
| 433 | si.dwFlags |= STARTF_USESTDHANDLES;
|
---|
| 434 | if (OPEN_READABLE_P(flags)) {
|
---|
| 435 | si.hStdOutput = ofd[1];
|
---|
| 436 | si.hStdError = ofd[1];
|
---|
| 437 | }
|
---|
| 438 | if (OPEN_WRITABLE_P(flags)) {
|
---|
| 439 | si.hStdInput = ifd[0];
|
---|
| 440 | }
|
---|
| 441 | if (!CreateProcess(
|
---|
| 442 | NULL, (char*)pname, NULL, NULL,
|
---|
| 443 | TRUE, CREATE_NEW_PROCESS_GROUP, NULL, NULL, &si, &pi)) {
|
---|
| 444 | CloseHandle(ifd[0]);
|
---|
| 445 | CloseHandle(ifd[1]);
|
---|
| 446 | CloseHandle(ofd[0]);
|
---|
| 447 | CloseHandle(ofd[1]);
|
---|
| 448 | mrb_raisef(mrb, E_IO_ERROR, "command not found: %v", cmd);
|
---|
| 449 | }
|
---|
| 450 | CloseHandle(pi.hThread);
|
---|
| 451 | CloseHandle(ifd[0]);
|
---|
| 452 | CloseHandle(ofd[1]);
|
---|
| 453 | pid = pi.dwProcessId;
|
---|
| 454 | }
|
---|
| 455 |
|
---|
| 456 | mrb_iv_set(mrb, io, mrb_intern_cstr(mrb, "@buf"), mrb_str_new_cstr(mrb, ""));
|
---|
| 457 |
|
---|
| 458 | fptr = mrb_io_alloc(mrb);
|
---|
| 459 | fptr->fd = _open_osfhandle((intptr_t)ofd[0], 0);
|
---|
| 460 | fptr->fd2 = _open_osfhandle((intptr_t)ifd[1], 0);
|
---|
| 461 | fptr->pid = pid;
|
---|
| 462 | fptr->readable = OPEN_READABLE_P(flags);
|
---|
| 463 | fptr->writable = OPEN_WRITABLE_P(flags);
|
---|
| 464 | fptr->sync = 0;
|
---|
| 465 |
|
---|
| 466 | DATA_TYPE(io) = &mrb_io_type;
|
---|
| 467 | DATA_PTR(io) = fptr;
|
---|
| 468 | return io;
|
---|
| 469 | }
|
---|
| 470 | #elif defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
|
---|
| 471 | mrb_value
|
---|
| 472 | mrb_io_s_popen(mrb_state *mrb, mrb_value klass)
|
---|
| 473 | {
|
---|
| 474 | mrb_raise(mrb, E_NOTIMP_ERROR, "IO#popen is not supported on the platform");
|
---|
| 475 | return mrb_false_value();
|
---|
| 476 | }
|
---|
| 477 | #else
|
---|
| 478 | mrb_value
|
---|
| 479 | mrb_io_s_popen(mrb_state *mrb, mrb_value klass)
|
---|
| 480 | {
|
---|
| 481 | mrb_value cmd, io, result;
|
---|
| 482 | mrb_value mode = mrb_str_new_cstr(mrb, "r");
|
---|
| 483 | mrb_value opt = mrb_hash_new(mrb);
|
---|
| 484 |
|
---|
| 485 | struct mrb_io *fptr;
|
---|
| 486 | const char *pname;
|
---|
| 487 | int pid, flags, fd, write_fd = -1;
|
---|
| 488 | int pr[2] = { -1, -1 };
|
---|
| 489 | int pw[2] = { -1, -1 };
|
---|
| 490 | int doexec;
|
---|
| 491 | int saved_errno;
|
---|
| 492 | int opt_in, opt_out, opt_err;
|
---|
| 493 |
|
---|
| 494 | mrb_get_args(mrb, "S|oH", &cmd, &mode, &opt);
|
---|
| 495 | io = mrb_obj_value(mrb_data_object_alloc(mrb, mrb_class_ptr(klass), NULL, &mrb_io_type));
|
---|
| 496 |
|
---|
| 497 | pname = RSTRING_CSTR(mrb, cmd);
|
---|
| 498 | flags = mrb_io_mode_to_flags(mrb, mode);
|
---|
| 499 |
|
---|
| 500 | doexec = (strcmp("-", pname) != 0);
|
---|
| 501 | opt_in = option_to_fd(mrb, opt, "in");
|
---|
| 502 | opt_out = option_to_fd(mrb, opt, "out");
|
---|
| 503 | opt_err = option_to_fd(mrb, opt, "err");
|
---|
| 504 |
|
---|
| 505 | if (OPEN_READABLE_P(flags)) {
|
---|
| 506 | if (pipe(pr) == -1) {
|
---|
| 507 | mrb_sys_fail(mrb, "pipe");
|
---|
| 508 | }
|
---|
| 509 | mrb_fd_cloexec(mrb, pr[0]);
|
---|
| 510 | mrb_fd_cloexec(mrb, pr[1]);
|
---|
| 511 | }
|
---|
| 512 |
|
---|
| 513 | if (OPEN_WRITABLE_P(flags)) {
|
---|
| 514 | if (pipe(pw) == -1) {
|
---|
| 515 | if (pr[0] != -1) close(pr[0]);
|
---|
| 516 | if (pr[1] != -1) close(pr[1]);
|
---|
| 517 | mrb_sys_fail(mrb, "pipe");
|
---|
| 518 | }
|
---|
| 519 | mrb_fd_cloexec(mrb, pw[0]);
|
---|
| 520 | mrb_fd_cloexec(mrb, pw[1]);
|
---|
| 521 | }
|
---|
| 522 |
|
---|
| 523 | if (!doexec) {
|
---|
| 524 | // XXX
|
---|
| 525 | fflush(stdin);
|
---|
| 526 | fflush(stdout);
|
---|
| 527 | fflush(stderr);
|
---|
| 528 | }
|
---|
| 529 |
|
---|
| 530 | result = mrb_nil_value();
|
---|
| 531 | switch (pid = fork()) {
|
---|
| 532 | case 0: /* child */
|
---|
| 533 | if (opt_in != -1) {
|
---|
| 534 | dup2(opt_in, 0);
|
---|
| 535 | }
|
---|
| 536 | if (opt_out != -1) {
|
---|
| 537 | dup2(opt_out, 1);
|
---|
| 538 | }
|
---|
| 539 | if (opt_err != -1) {
|
---|
| 540 | dup2(opt_err, 2);
|
---|
| 541 | }
|
---|
| 542 | if (OPEN_READABLE_P(flags)) {
|
---|
| 543 | close(pr[0]);
|
---|
| 544 | if (pr[1] != 1) {
|
---|
| 545 | dup2(pr[1], 1);
|
---|
| 546 | close(pr[1]);
|
---|
| 547 | }
|
---|
| 548 | }
|
---|
| 549 | if (OPEN_WRITABLE_P(flags)) {
|
---|
| 550 | close(pw[1]);
|
---|
| 551 | if (pw[0] != 0) {
|
---|
| 552 | dup2(pw[0], 0);
|
---|
| 553 | close(pw[0]);
|
---|
| 554 | }
|
---|
| 555 | }
|
---|
| 556 | if (doexec) {
|
---|
| 557 | for (fd = 3; fd < NOFILE; fd++) {
|
---|
| 558 | close(fd);
|
---|
| 559 | }
|
---|
| 560 | mrb_proc_exec(pname);
|
---|
| 561 | mrb_raisef(mrb, E_IO_ERROR, "command not found: %v", cmd);
|
---|
| 562 | _exit(127);
|
---|
| 563 | }
|
---|
| 564 | result = mrb_nil_value();
|
---|
| 565 | break;
|
---|
| 566 |
|
---|
| 567 | default: /* parent */
|
---|
| 568 | if (OPEN_RDWR_P(flags)) {
|
---|
| 569 | close(pr[1]);
|
---|
| 570 | fd = pr[0];
|
---|
| 571 | close(pw[0]);
|
---|
| 572 | write_fd = pw[1];
|
---|
| 573 | } else if (OPEN_RDONLY_P(flags)) {
|
---|
| 574 | close(pr[1]);
|
---|
| 575 | fd = pr[0];
|
---|
| 576 | } else {
|
---|
| 577 | close(pw[0]);
|
---|
| 578 | fd = pw[1];
|
---|
| 579 | }
|
---|
| 580 |
|
---|
| 581 | mrb_iv_set(mrb, io, mrb_intern_cstr(mrb, "@buf"), mrb_str_new_cstr(mrb, ""));
|
---|
| 582 |
|
---|
| 583 | fptr = mrb_io_alloc(mrb);
|
---|
| 584 | fptr->fd = fd;
|
---|
| 585 | fptr->fd2 = write_fd;
|
---|
| 586 | fptr->pid = pid;
|
---|
| 587 | fptr->readable = OPEN_READABLE_P(flags);
|
---|
| 588 | fptr->writable = OPEN_WRITABLE_P(flags);
|
---|
| 589 | fptr->sync = 0;
|
---|
| 590 |
|
---|
| 591 | DATA_TYPE(io) = &mrb_io_type;
|
---|
| 592 | DATA_PTR(io) = fptr;
|
---|
| 593 | result = io;
|
---|
| 594 | break;
|
---|
| 595 |
|
---|
| 596 | case -1: /* error */
|
---|
| 597 | saved_errno = errno;
|
---|
| 598 | if (OPEN_READABLE_P(flags)) {
|
---|
| 599 | close(pr[0]);
|
---|
| 600 | close(pr[1]);
|
---|
| 601 | }
|
---|
| 602 | if (OPEN_WRITABLE_P(flags)) {
|
---|
| 603 | close(pw[0]);
|
---|
| 604 | close(pw[1]);
|
---|
| 605 | }
|
---|
| 606 | errno = saved_errno;
|
---|
| 607 | mrb_sys_fail(mrb, "pipe_open failed.");
|
---|
| 608 | break;
|
---|
| 609 | }
|
---|
| 610 | return result;
|
---|
| 611 | }
|
---|
| 612 | #endif
|
---|
| 613 |
|
---|
| 614 | static int
|
---|
| 615 | mrb_dup(mrb_state *mrb, int fd, mrb_bool *failed)
|
---|
| 616 | {
|
---|
| 617 | int new_fd;
|
---|
| 618 |
|
---|
| 619 | *failed = TRUE;
|
---|
| 620 | if (fd < 0)
|
---|
| 621 | return fd;
|
---|
| 622 |
|
---|
| 623 | new_fd = dup(fd);
|
---|
| 624 | if (new_fd > 0) *failed = FALSE;
|
---|
| 625 | return new_fd;
|
---|
| 626 | }
|
---|
| 627 |
|
---|
| 628 | mrb_value
|
---|
| 629 | mrb_io_initialize_copy(mrb_state *mrb, mrb_value copy)
|
---|
| 630 | {
|
---|
| 631 | mrb_value orig;
|
---|
| 632 | mrb_value buf;
|
---|
| 633 | struct mrb_io *fptr_copy;
|
---|
| 634 | struct mrb_io *fptr_orig;
|
---|
| 635 | mrb_bool failed = TRUE;
|
---|
| 636 |
|
---|
| 637 | mrb_get_args(mrb, "o", &orig);
|
---|
| 638 | fptr_orig = io_get_open_fptr(mrb, orig);
|
---|
| 639 | fptr_copy = (struct mrb_io *)DATA_PTR(copy);
|
---|
| 640 | if (fptr_orig == fptr_copy) return copy;
|
---|
| 641 | if (fptr_copy != NULL) {
|
---|
| 642 | fptr_finalize(mrb, fptr_copy, FALSE);
|
---|
| 643 | mrb_free(mrb, fptr_copy);
|
---|
| 644 | }
|
---|
| 645 | fptr_copy = (struct mrb_io *)mrb_io_alloc(mrb);
|
---|
| 646 |
|
---|
| 647 | DATA_TYPE(copy) = &mrb_io_type;
|
---|
| 648 | DATA_PTR(copy) = fptr_copy;
|
---|
| 649 |
|
---|
| 650 | buf = mrb_iv_get(mrb, orig, mrb_intern_cstr(mrb, "@buf"));
|
---|
| 651 | mrb_iv_set(mrb, copy, mrb_intern_cstr(mrb, "@buf"), buf);
|
---|
| 652 |
|
---|
| 653 | fptr_copy->fd = mrb_dup(mrb, fptr_orig->fd, &failed);
|
---|
| 654 | if (failed) {
|
---|
| 655 | mrb_sys_fail(mrb, 0);
|
---|
| 656 | }
|
---|
| 657 | mrb_fd_cloexec(mrb, fptr_copy->fd);
|
---|
| 658 |
|
---|
| 659 | if (fptr_orig->fd2 != -1) {
|
---|
| 660 | fptr_copy->fd2 = mrb_dup(mrb, fptr_orig->fd2, &failed);
|
---|
| 661 | if (failed) {
|
---|
| 662 | close(fptr_copy->fd);
|
---|
| 663 | mrb_sys_fail(mrb, 0);
|
---|
| 664 | }
|
---|
| 665 | mrb_fd_cloexec(mrb, fptr_copy->fd2);
|
---|
| 666 | }
|
---|
| 667 |
|
---|
| 668 | fptr_copy->pid = fptr_orig->pid;
|
---|
| 669 | fptr_copy->readable = fptr_orig->readable;
|
---|
| 670 | fptr_copy->writable = fptr_orig->writable;
|
---|
| 671 | fptr_copy->sync = fptr_orig->sync;
|
---|
| 672 | fptr_copy->is_socket = fptr_orig->is_socket;
|
---|
| 673 |
|
---|
| 674 | return copy;
|
---|
| 675 | }
|
---|
| 676 |
|
---|
| 677 | mrb_value
|
---|
| 678 | mrb_io_initialize(mrb_state *mrb, mrb_value io)
|
---|
| 679 | {
|
---|
| 680 | struct mrb_io *fptr;
|
---|
| 681 | mrb_int fd;
|
---|
| 682 | mrb_value mode, opt;
|
---|
| 683 | int flags;
|
---|
| 684 |
|
---|
| 685 | mode = opt = mrb_nil_value();
|
---|
| 686 |
|
---|
| 687 | mrb_get_args(mrb, "i|oo", &fd, &mode, &opt);
|
---|
| 688 | if (mrb_nil_p(mode)) {
|
---|
| 689 | mode = mrb_str_new_cstr(mrb, "r");
|
---|
| 690 | }
|
---|
| 691 | if (mrb_nil_p(opt)) {
|
---|
| 692 | opt = mrb_hash_new(mrb);
|
---|
| 693 | }
|
---|
| 694 |
|
---|
| 695 | flags = mrb_io_mode_to_flags(mrb, mode);
|
---|
| 696 |
|
---|
| 697 | mrb_iv_set(mrb, io, mrb_intern_cstr(mrb, "@buf"), mrb_str_new_cstr(mrb, ""));
|
---|
| 698 |
|
---|
| 699 | fptr = (struct mrb_io *)DATA_PTR(io);
|
---|
| 700 | if (fptr != NULL) {
|
---|
| 701 | fptr_finalize(mrb, fptr, TRUE);
|
---|
| 702 | mrb_free(mrb, fptr);
|
---|
| 703 | }
|
---|
| 704 | fptr = mrb_io_alloc(mrb);
|
---|
| 705 |
|
---|
| 706 | DATA_TYPE(io) = &mrb_io_type;
|
---|
| 707 | DATA_PTR(io) = fptr;
|
---|
| 708 |
|
---|
| 709 | fptr->fd = (int)fd;
|
---|
| 710 | fptr->readable = OPEN_READABLE_P(flags);
|
---|
| 711 | fptr->writable = OPEN_WRITABLE_P(flags);
|
---|
| 712 | fptr->sync = 0;
|
---|
| 713 | return io;
|
---|
| 714 | }
|
---|
| 715 |
|
---|
| 716 | static void
|
---|
| 717 | fptr_finalize(mrb_state *mrb, struct mrb_io *fptr, int quiet)
|
---|
| 718 | {
|
---|
| 719 | int saved_errno = 0;
|
---|
| 720 |
|
---|
| 721 | if (fptr == NULL) {
|
---|
| 722 | return;
|
---|
| 723 | }
|
---|
| 724 |
|
---|
| 725 | if (fptr->fd > 2) {
|
---|
| 726 | #ifdef _WIN32
|
---|
| 727 | if (fptr->is_socket) {
|
---|
| 728 | if (closesocket(fptr->fd) != 0) {
|
---|
| 729 | saved_errno = WSAGetLastError();
|
---|
| 730 | }
|
---|
| 731 | fptr->fd = -1;
|
---|
| 732 | }
|
---|
| 733 | #endif
|
---|
| 734 | if (fptr->fd != -1) {
|
---|
| 735 | if (close(fptr->fd) == -1) {
|
---|
| 736 | saved_errno = errno;
|
---|
| 737 | }
|
---|
| 738 | }
|
---|
| 739 | fptr->fd = -1;
|
---|
| 740 | }
|
---|
| 741 |
|
---|
| 742 | if (fptr->fd2 > 2) {
|
---|
| 743 | if (close(fptr->fd2) == -1) {
|
---|
| 744 | if (saved_errno == 0) {
|
---|
| 745 | saved_errno = errno;
|
---|
| 746 | }
|
---|
| 747 | }
|
---|
| 748 | fptr->fd2 = -1;
|
---|
| 749 | }
|
---|
| 750 |
|
---|
| 751 | if (fptr->pid != 0) {
|
---|
| 752 | #if !defined(_WIN32) && !defined(_WIN64)
|
---|
| 753 | pid_t pid;
|
---|
| 754 | int status;
|
---|
| 755 | do {
|
---|
| 756 | pid = waitpid(fptr->pid, &status, 0);
|
---|
| 757 | } while (pid == -1 && errno == EINTR);
|
---|
| 758 | if (!quiet && pid == fptr->pid) {
|
---|
| 759 | io_set_process_status(mrb, pid, status);
|
---|
| 760 | }
|
---|
| 761 | #else
|
---|
| 762 | HANDLE h = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, fptr->pid);
|
---|
| 763 | DWORD status;
|
---|
| 764 | if (WaitForSingleObject(h, INFINITE) && GetExitCodeProcess(h, &status))
|
---|
| 765 | if (!quiet)
|
---|
| 766 | io_set_process_status(mrb, fptr->pid, (int)status);
|
---|
| 767 | CloseHandle(h);
|
---|
| 768 | #endif
|
---|
| 769 | fptr->pid = 0;
|
---|
| 770 | /* Note: we don't raise an exception when waitpid(3) fails */
|
---|
| 771 | }
|
---|
| 772 |
|
---|
| 773 | if (!quiet && saved_errno != 0) {
|
---|
| 774 | errno = saved_errno;
|
---|
| 775 | mrb_sys_fail(mrb, "fptr_finalize failed.");
|
---|
| 776 | }
|
---|
| 777 | }
|
---|
| 778 |
|
---|
| 779 | mrb_value
|
---|
| 780 | mrb_io_check_readable(mrb_state *mrb, mrb_value self)
|
---|
| 781 | {
|
---|
| 782 | struct mrb_io *fptr = io_get_open_fptr(mrb, self);
|
---|
| 783 | if (! fptr->readable) {
|
---|
| 784 | mrb_raise(mrb, E_IO_ERROR, "not opened for reading");
|
---|
| 785 | }
|
---|
| 786 | return mrb_nil_value();
|
---|
| 787 | }
|
---|
| 788 |
|
---|
| 789 | mrb_value
|
---|
| 790 | mrb_io_isatty(mrb_state *mrb, mrb_value self)
|
---|
| 791 | {
|
---|
| 792 | struct mrb_io *fptr;
|
---|
| 793 |
|
---|
| 794 | fptr = io_get_open_fptr(mrb, self);
|
---|
| 795 | if (isatty(fptr->fd) == 0)
|
---|
| 796 | return mrb_false_value();
|
---|
| 797 | return mrb_true_value();
|
---|
| 798 | }
|
---|
| 799 |
|
---|
| 800 | mrb_value
|
---|
| 801 | mrb_io_s_for_fd(mrb_state *mrb, mrb_value klass)
|
---|
| 802 | {
|
---|
| 803 | struct RClass *c = mrb_class_ptr(klass);
|
---|
| 804 | enum mrb_vtype ttype = MRB_INSTANCE_TT(c);
|
---|
| 805 | mrb_value obj;
|
---|
| 806 |
|
---|
| 807 | /* copied from mrb_instance_alloc() */
|
---|
| 808 | if (ttype == 0) ttype = MRB_TT_OBJECT;
|
---|
| 809 | obj = mrb_obj_value((struct RObject*)mrb_obj_alloc(mrb, ttype, c));
|
---|
| 810 | return mrb_io_initialize(mrb, obj);
|
---|
| 811 | }
|
---|
| 812 |
|
---|
| 813 | mrb_value
|
---|
| 814 | mrb_io_s_sysclose(mrb_state *mrb, mrb_value klass)
|
---|
| 815 | {
|
---|
| 816 | mrb_int fd;
|
---|
| 817 | mrb_get_args(mrb, "i", &fd);
|
---|
| 818 | if (close((int)fd) == -1) {
|
---|
| 819 | mrb_sys_fail(mrb, "close");
|
---|
| 820 | }
|
---|
| 821 | return mrb_fixnum_value(0);
|
---|
| 822 | }
|
---|
| 823 |
|
---|
| 824 | int
|
---|
| 825 | mrb_cloexec_open(mrb_state *mrb, const char *pathname, mrb_int flags, mrb_int mode)
|
---|
| 826 | {
|
---|
| 827 | int fd, retry = FALSE;
|
---|
| 828 | char* fname = mrb_locale_from_utf8(pathname, -1);
|
---|
| 829 |
|
---|
| 830 | #ifdef O_CLOEXEC
|
---|
| 831 | /* O_CLOEXEC is available since Linux 2.6.23. Linux 2.6.18 silently ignore it. */
|
---|
| 832 | flags |= O_CLOEXEC;
|
---|
| 833 | #elif defined O_NOINHERIT
|
---|
| 834 | flags |= O_NOINHERIT;
|
---|
| 835 | #endif
|
---|
| 836 | reopen:
|
---|
| 837 | fd = open(fname, (int)flags, (fmode_t)mode);
|
---|
| 838 | if (fd == -1) {
|
---|
| 839 | if (!retry) {
|
---|
| 840 | switch (errno) {
|
---|
| 841 | case ENFILE:
|
---|
| 842 | case EMFILE:
|
---|
| 843 | mrb_garbage_collect(mrb);
|
---|
| 844 | retry = TRUE;
|
---|
| 845 | goto reopen;
|
---|
| 846 | }
|
---|
| 847 | }
|
---|
| 848 |
|
---|
| 849 | mrb_sys_fail(mrb, RSTRING_CSTR(mrb, mrb_format(mrb, "open %s", pathname)));
|
---|
| 850 | }
|
---|
| 851 | mrb_locale_free(fname);
|
---|
| 852 |
|
---|
| 853 | if (fd <= 2) {
|
---|
| 854 | mrb_fd_cloexec(mrb, fd);
|
---|
| 855 | }
|
---|
| 856 | return fd;
|
---|
| 857 | }
|
---|
| 858 |
|
---|
| 859 | mrb_value
|
---|
| 860 | mrb_io_s_sysopen(mrb_state *mrb, mrb_value klass)
|
---|
| 861 | {
|
---|
| 862 | mrb_value path = mrb_nil_value();
|
---|
| 863 | mrb_value mode = mrb_nil_value();
|
---|
| 864 | mrb_int fd, perm = -1;
|
---|
| 865 | const char *pat;
|
---|
| 866 | int flags;
|
---|
| 867 |
|
---|
| 868 | mrb_get_args(mrb, "S|oi", &path, &mode, &perm);
|
---|
| 869 | if (perm < 0) {
|
---|
| 870 | perm = 0666;
|
---|
| 871 | }
|
---|
| 872 |
|
---|
| 873 | pat = RSTRING_CSTR(mrb, path);
|
---|
| 874 | flags = mrb_io_mode_to_flags(mrb, mode);
|
---|
| 875 | fd = mrb_cloexec_open(mrb, pat, flags, perm);
|
---|
| 876 | return mrb_fixnum_value(fd);
|
---|
| 877 | }
|
---|
| 878 |
|
---|
| 879 | static mrb_value mrb_io_sysread_common(mrb_state *mrb,
|
---|
| 880 | mrb_io_read_write_size (*readfunc)(int, void *, fsize_t, off_t),
|
---|
| 881 | mrb_value io, mrb_value buf, mrb_int maxlen, off_t offset);
|
---|
| 882 |
|
---|
| 883 | static mrb_io_read_write_size
|
---|
| 884 | mrb_sysread_dummy(int fd, void *buf, fsize_t nbytes, off_t offset)
|
---|
| 885 | {
|
---|
| 886 | return (mrb_io_read_write_size)read(fd, buf, nbytes);
|
---|
| 887 | }
|
---|
| 888 |
|
---|
| 889 | mrb_value
|
---|
| 890 | mrb_io_sysread(mrb_state *mrb, mrb_value io)
|
---|
| 891 | {
|
---|
| 892 | mrb_value buf = mrb_nil_value();
|
---|
| 893 | mrb_int maxlen;
|
---|
| 894 |
|
---|
| 895 | mrb_get_args(mrb, "i|S", &maxlen, &buf);
|
---|
| 896 |
|
---|
| 897 | return mrb_io_sysread_common(mrb, mrb_sysread_dummy, io, buf, maxlen, 0);
|
---|
| 898 | }
|
---|
| 899 |
|
---|
| 900 | static mrb_value
|
---|
| 901 | mrb_io_sysread_common(mrb_state *mrb,
|
---|
| 902 | mrb_io_read_write_size (*readfunc)(int, void *, fsize_t, off_t),
|
---|
| 903 | mrb_value io, mrb_value buf, mrb_int maxlen, off_t offset)
|
---|
| 904 | {
|
---|
| 905 | struct mrb_io *fptr;
|
---|
| 906 | int ret;
|
---|
| 907 |
|
---|
| 908 | if (maxlen < 0) {
|
---|
| 909 | mrb_raise(mrb, E_ARGUMENT_ERROR, "negative expanding string size");
|
---|
| 910 | }
|
---|
| 911 | else if (maxlen == 0) {
|
---|
| 912 | return mrb_str_new(mrb, NULL, maxlen);
|
---|
| 913 | }
|
---|
| 914 |
|
---|
| 915 | if (mrb_nil_p(buf)) {
|
---|
| 916 | buf = mrb_str_new(mrb, NULL, maxlen);
|
---|
| 917 | }
|
---|
| 918 |
|
---|
| 919 | if (RSTRING_LEN(buf) != maxlen) {
|
---|
| 920 | buf = mrb_str_resize(mrb, buf, maxlen);
|
---|
| 921 | }
|
---|
| 922 | else {
|
---|
| 923 | mrb_str_modify(mrb, RSTRING(buf));
|
---|
| 924 | }
|
---|
| 925 |
|
---|
| 926 | fptr = (struct mrb_io *)io_get_open_fptr(mrb, io);
|
---|
| 927 | if (!fptr->readable) {
|
---|
| 928 | mrb_raise(mrb, E_IO_ERROR, "not opened for reading");
|
---|
| 929 | }
|
---|
| 930 | ret = readfunc(fptr->fd, RSTRING_PTR(buf), (fsize_t)maxlen, offset);
|
---|
| 931 | if (ret < 0) {
|
---|
| 932 | mrb_sys_fail(mrb, "sysread failed");
|
---|
| 933 | }
|
---|
| 934 | if (RSTRING_LEN(buf) != ret) {
|
---|
| 935 | buf = mrb_str_resize(mrb, buf, ret);
|
---|
| 936 | }
|
---|
| 937 | if (ret == 0 && maxlen > 0) {
|
---|
| 938 | mrb_raise(mrb, E_EOF_ERROR, "sysread failed: End of File");
|
---|
| 939 | }
|
---|
| 940 | return buf;
|
---|
| 941 | }
|
---|
| 942 |
|
---|
| 943 | mrb_value
|
---|
| 944 | mrb_io_sysseek(mrb_state *mrb, mrb_value io)
|
---|
| 945 | {
|
---|
| 946 | struct mrb_io *fptr;
|
---|
| 947 | off_t pos;
|
---|
| 948 | mrb_int offset, whence = -1;
|
---|
| 949 |
|
---|
| 950 | mrb_get_args(mrb, "i|i", &offset, &whence);
|
---|
| 951 | if (whence < 0) {
|
---|
| 952 | whence = 0;
|
---|
| 953 | }
|
---|
| 954 |
|
---|
| 955 | fptr = io_get_open_fptr(mrb, io);
|
---|
| 956 | pos = lseek(fptr->fd, (off_t)offset, (int)whence);
|
---|
| 957 | if (pos == -1) {
|
---|
| 958 | mrb_sys_fail(mrb, "sysseek");
|
---|
| 959 | }
|
---|
| 960 | if (pos > MRB_INT_MAX) {
|
---|
| 961 | #ifndef MRB_WITHOUT_FLOAT
|
---|
| 962 | return mrb_float_value(mrb, (mrb_float)pos);
|
---|
| 963 | #else
|
---|
| 964 | mrb_raise(mrb, E_IO_ERROR, "sysseek reached too far for MRB_WITHOUT_FLOAT");
|
---|
| 965 | #endif
|
---|
| 966 | } else {
|
---|
| 967 | return mrb_fixnum_value(pos);
|
---|
| 968 | }
|
---|
| 969 | }
|
---|
| 970 |
|
---|
| 971 | static mrb_value
|
---|
| 972 | mrb_io_syswrite_common(mrb_state *mrb,
|
---|
| 973 | mrb_io_read_write_size (*writefunc)(int, const void *, fsize_t, off_t),
|
---|
| 974 | mrb_value io, mrb_value buf, off_t offset)
|
---|
| 975 | {
|
---|
| 976 | struct mrb_io *fptr;
|
---|
| 977 | int fd, length;
|
---|
| 978 |
|
---|
| 979 | fptr = io_get_open_fptr(mrb, io);
|
---|
| 980 | if (! fptr->writable) {
|
---|
| 981 | mrb_raise(mrb, E_IO_ERROR, "not opened for writing");
|
---|
| 982 | }
|
---|
| 983 |
|
---|
| 984 | if (fptr->fd2 == -1) {
|
---|
| 985 | fd = fptr->fd;
|
---|
| 986 | } else {
|
---|
| 987 | fd = fptr->fd2;
|
---|
| 988 | }
|
---|
| 989 | length = writefunc(fd, RSTRING_PTR(buf), (fsize_t)RSTRING_LEN(buf), offset);
|
---|
| 990 | if (length == -1) {
|
---|
| 991 | mrb_sys_fail(mrb, 0);
|
---|
| 992 | }
|
---|
| 993 |
|
---|
| 994 | return mrb_fixnum_value(length);
|
---|
| 995 | }
|
---|
| 996 |
|
---|
| 997 | static mrb_io_read_write_size
|
---|
| 998 | mrb_syswrite_dummy(int fd, const void *buf, fsize_t nbytes, off_t offset)
|
---|
| 999 | {
|
---|
| 1000 | return (mrb_io_read_write_size)write(fd, buf, nbytes);
|
---|
| 1001 | }
|
---|
| 1002 |
|
---|
| 1003 | mrb_value
|
---|
| 1004 | mrb_io_syswrite(mrb_state *mrb, mrb_value io)
|
---|
| 1005 | {
|
---|
| 1006 | mrb_value buf;
|
---|
| 1007 |
|
---|
| 1008 | mrb_get_args(mrb, "S", &buf);
|
---|
| 1009 |
|
---|
| 1010 | return mrb_io_syswrite_common(mrb, mrb_syswrite_dummy, io, buf, 0);
|
---|
| 1011 | }
|
---|
| 1012 |
|
---|
| 1013 | mrb_value
|
---|
| 1014 | mrb_io_close(mrb_state *mrb, mrb_value self)
|
---|
| 1015 | {
|
---|
| 1016 | struct mrb_io *fptr;
|
---|
| 1017 | fptr = io_get_open_fptr(mrb, self);
|
---|
| 1018 | fptr_finalize(mrb, fptr, FALSE);
|
---|
| 1019 | return mrb_nil_value();
|
---|
| 1020 | }
|
---|
| 1021 |
|
---|
| 1022 | mrb_value
|
---|
| 1023 | mrb_io_close_write(mrb_state *mrb, mrb_value self)
|
---|
| 1024 | {
|
---|
| 1025 | struct mrb_io *fptr;
|
---|
| 1026 | fptr = io_get_open_fptr(mrb, self);
|
---|
| 1027 | if (close((int)fptr->fd2) == -1) {
|
---|
| 1028 | mrb_sys_fail(mrb, "close");
|
---|
| 1029 | }
|
---|
| 1030 | return mrb_nil_value();
|
---|
| 1031 | }
|
---|
| 1032 |
|
---|
| 1033 | mrb_value
|
---|
| 1034 | mrb_io_closed(mrb_state *mrb, mrb_value io)
|
---|
| 1035 | {
|
---|
| 1036 | struct mrb_io *fptr;
|
---|
| 1037 | fptr = (struct mrb_io *)mrb_data_get_ptr(mrb, io, &mrb_io_type);
|
---|
| 1038 | if (fptr == NULL || fptr->fd >= 0) {
|
---|
| 1039 | return mrb_false_value();
|
---|
| 1040 | }
|
---|
| 1041 |
|
---|
| 1042 | return mrb_true_value();
|
---|
| 1043 | }
|
---|
| 1044 |
|
---|
| 1045 | mrb_value
|
---|
| 1046 | mrb_io_pid(mrb_state *mrb, mrb_value io)
|
---|
| 1047 | {
|
---|
| 1048 | struct mrb_io *fptr;
|
---|
| 1049 | fptr = io_get_open_fptr(mrb, io);
|
---|
| 1050 |
|
---|
| 1051 | if (fptr->pid > 0) {
|
---|
| 1052 | return mrb_fixnum_value(fptr->pid);
|
---|
| 1053 | }
|
---|
| 1054 |
|
---|
| 1055 | return mrb_nil_value();
|
---|
| 1056 | }
|
---|
| 1057 |
|
---|
| 1058 | static struct timeval
|
---|
| 1059 | time2timeval(mrb_state *mrb, mrb_value time)
|
---|
| 1060 | {
|
---|
| 1061 | struct timeval t = { 0, 0 };
|
---|
| 1062 |
|
---|
| 1063 | switch (mrb_type(time)) {
|
---|
| 1064 | case MRB_TT_FIXNUM:
|
---|
| 1065 | t.tv_sec = (ftime_t)mrb_fixnum(time);
|
---|
| 1066 | t.tv_usec = 0;
|
---|
| 1067 | break;
|
---|
| 1068 |
|
---|
| 1069 | #ifndef MRB_WITHOUT_FLOAT
|
---|
| 1070 | case MRB_TT_FLOAT:
|
---|
| 1071 | t.tv_sec = (ftime_t)mrb_float(time);
|
---|
| 1072 | t.tv_usec = (fsuseconds_t)((mrb_float(time) - t.tv_sec) * 1000000.0);
|
---|
| 1073 | break;
|
---|
| 1074 | #endif
|
---|
| 1075 |
|
---|
| 1076 | default:
|
---|
| 1077 | mrb_raise(mrb, E_TYPE_ERROR, "wrong argument class");
|
---|
| 1078 | }
|
---|
| 1079 |
|
---|
| 1080 | return t;
|
---|
| 1081 | }
|
---|
| 1082 |
|
---|
| 1083 | static int
|
---|
| 1084 | mrb_io_read_data_pending(mrb_state *mrb, mrb_value io)
|
---|
| 1085 | {
|
---|
| 1086 | mrb_value buf = mrb_iv_get(mrb, io, mrb_intern_cstr(mrb, "@buf"));
|
---|
| 1087 | if (mrb_string_p(buf) && RSTRING_LEN(buf) > 0) {
|
---|
| 1088 | return 1;
|
---|
| 1089 | }
|
---|
| 1090 | return 0;
|
---|
| 1091 | }
|
---|
| 1092 |
|
---|
| 1093 | #if !defined(_WIN32) && !(defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)
|
---|
| 1094 | static mrb_value
|
---|
| 1095 | mrb_io_s_pipe(mrb_state *mrb, mrb_value klass)
|
---|
| 1096 | {
|
---|
| 1097 | mrb_value r = mrb_nil_value();
|
---|
| 1098 | mrb_value w = mrb_nil_value();
|
---|
| 1099 | struct mrb_io *fptr_r;
|
---|
| 1100 | struct mrb_io *fptr_w;
|
---|
| 1101 | int pipes[2];
|
---|
| 1102 |
|
---|
| 1103 | if (mrb_pipe(mrb, pipes) == -1) {
|
---|
| 1104 | mrb_sys_fail(mrb, "pipe");
|
---|
| 1105 | }
|
---|
| 1106 |
|
---|
| 1107 | r = mrb_obj_value(mrb_data_object_alloc(mrb, mrb_class_ptr(klass), NULL, &mrb_io_type));
|
---|
| 1108 | mrb_iv_set(mrb, r, mrb_intern_cstr(mrb, "@buf"), mrb_str_new_cstr(mrb, ""));
|
---|
| 1109 | fptr_r = mrb_io_alloc(mrb);
|
---|
| 1110 | fptr_r->fd = pipes[0];
|
---|
| 1111 | fptr_r->readable = 1;
|
---|
| 1112 | fptr_r->writable = 0;
|
---|
| 1113 | fptr_r->sync = 0;
|
---|
| 1114 | DATA_TYPE(r) = &mrb_io_type;
|
---|
| 1115 | DATA_PTR(r) = fptr_r;
|
---|
| 1116 |
|
---|
| 1117 | w = mrb_obj_value(mrb_data_object_alloc(mrb, mrb_class_ptr(klass), NULL, &mrb_io_type));
|
---|
| 1118 | mrb_iv_set(mrb, w, mrb_intern_cstr(mrb, "@buf"), mrb_str_new_cstr(mrb, ""));
|
---|
| 1119 | fptr_w = mrb_io_alloc(mrb);
|
---|
| 1120 | fptr_w->fd = pipes[1];
|
---|
| 1121 | fptr_w->readable = 0;
|
---|
| 1122 | fptr_w->writable = 1;
|
---|
| 1123 | fptr_w->sync = 1;
|
---|
| 1124 | DATA_TYPE(w) = &mrb_io_type;
|
---|
| 1125 | DATA_PTR(w) = fptr_w;
|
---|
| 1126 |
|
---|
| 1127 | return mrb_assoc_new(mrb, r, w);
|
---|
| 1128 | }
|
---|
| 1129 | #endif
|
---|
| 1130 |
|
---|
| 1131 | static mrb_value
|
---|
| 1132 | mrb_io_s_select(mrb_state *mrb, mrb_value klass)
|
---|
| 1133 | {
|
---|
| 1134 | mrb_value *argv;
|
---|
| 1135 | mrb_int argc;
|
---|
| 1136 | mrb_value read, read_io, write, except, timeout, list;
|
---|
| 1137 | struct timeval *tp, timerec;
|
---|
| 1138 | fd_set pset, rset, wset, eset;
|
---|
| 1139 | fd_set *rp, *wp, *ep;
|
---|
| 1140 | struct mrb_io *fptr;
|
---|
| 1141 | int pending = 0;
|
---|
| 1142 | mrb_value result;
|
---|
| 1143 | int max = 0;
|
---|
| 1144 | int interrupt_flag = 0;
|
---|
| 1145 | int i, n;
|
---|
| 1146 |
|
---|
| 1147 | mrb_get_args(mrb, "*", &argv, &argc);
|
---|
| 1148 |
|
---|
| 1149 | if (argc < 1 || argc > 4) {
|
---|
| 1150 | mrb_argnum_error(mrb, argc, 1, 4);
|
---|
| 1151 | }
|
---|
| 1152 |
|
---|
| 1153 | timeout = mrb_nil_value();
|
---|
| 1154 | except = mrb_nil_value();
|
---|
| 1155 | write = mrb_nil_value();
|
---|
| 1156 | if (argc > 3)
|
---|
| 1157 | timeout = argv[3];
|
---|
| 1158 | if (argc > 2)
|
---|
| 1159 | except = argv[2];
|
---|
| 1160 | if (argc > 1)
|
---|
| 1161 | write = argv[1];
|
---|
| 1162 | read = argv[0];
|
---|
| 1163 |
|
---|
| 1164 | if (mrb_nil_p(timeout)) {
|
---|
| 1165 | tp = NULL;
|
---|
| 1166 | } else {
|
---|
| 1167 | timerec = time2timeval(mrb, timeout);
|
---|
| 1168 | tp = &timerec;
|
---|
| 1169 | }
|
---|
| 1170 |
|
---|
| 1171 | FD_ZERO(&pset);
|
---|
| 1172 | if (!mrb_nil_p(read)) {
|
---|
| 1173 | mrb_check_type(mrb, read, MRB_TT_ARRAY);
|
---|
| 1174 | rp = &rset;
|
---|
| 1175 | FD_ZERO(rp);
|
---|
| 1176 | for (i = 0; i < RARRAY_LEN(read); i++) {
|
---|
| 1177 | read_io = RARRAY_PTR(read)[i];
|
---|
| 1178 | fptr = io_get_open_fptr(mrb, read_io);
|
---|
| 1179 | FD_SET(fptr->fd, rp);
|
---|
| 1180 | if (mrb_io_read_data_pending(mrb, read_io)) {
|
---|
| 1181 | pending++;
|
---|
| 1182 | FD_SET(fptr->fd, &pset);
|
---|
| 1183 | }
|
---|
| 1184 | if (max < fptr->fd)
|
---|
| 1185 | max = fptr->fd;
|
---|
| 1186 | }
|
---|
| 1187 | if (pending) {
|
---|
| 1188 | timerec.tv_sec = timerec.tv_usec = 0;
|
---|
| 1189 | tp = &timerec;
|
---|
| 1190 | }
|
---|
| 1191 | } else {
|
---|
| 1192 | rp = NULL;
|
---|
| 1193 | }
|
---|
| 1194 |
|
---|
| 1195 | if (!mrb_nil_p(write)) {
|
---|
| 1196 | mrb_check_type(mrb, write, MRB_TT_ARRAY);
|
---|
| 1197 | wp = &wset;
|
---|
| 1198 | FD_ZERO(wp);
|
---|
| 1199 | for (i = 0; i < RARRAY_LEN(write); i++) {
|
---|
| 1200 | fptr = io_get_open_fptr(mrb, RARRAY_PTR(write)[i]);
|
---|
| 1201 | FD_SET(fptr->fd, wp);
|
---|
| 1202 | if (max < fptr->fd)
|
---|
| 1203 | max = fptr->fd;
|
---|
| 1204 | if (fptr->fd2 >= 0) {
|
---|
| 1205 | FD_SET(fptr->fd2, wp);
|
---|
| 1206 | if (max < fptr->fd2)
|
---|
| 1207 | max = fptr->fd2;
|
---|
| 1208 | }
|
---|
| 1209 | }
|
---|
| 1210 | } else {
|
---|
| 1211 | wp = NULL;
|
---|
| 1212 | }
|
---|
| 1213 |
|
---|
| 1214 | if (!mrb_nil_p(except)) {
|
---|
| 1215 | mrb_check_type(mrb, except, MRB_TT_ARRAY);
|
---|
| 1216 | ep = &eset;
|
---|
| 1217 | FD_ZERO(ep);
|
---|
| 1218 | for (i = 0; i < RARRAY_LEN(except); i++) {
|
---|
| 1219 | fptr = io_get_open_fptr(mrb, RARRAY_PTR(except)[i]);
|
---|
| 1220 | FD_SET(fptr->fd, ep);
|
---|
| 1221 | if (max < fptr->fd)
|
---|
| 1222 | max = fptr->fd;
|
---|
| 1223 | if (fptr->fd2 >= 0) {
|
---|
| 1224 | FD_SET(fptr->fd2, ep);
|
---|
| 1225 | if (max < fptr->fd2)
|
---|
| 1226 | max = fptr->fd2;
|
---|
| 1227 | }
|
---|
| 1228 | }
|
---|
| 1229 | } else {
|
---|
| 1230 | ep = NULL;
|
---|
| 1231 | }
|
---|
| 1232 |
|
---|
| 1233 | max++;
|
---|
| 1234 |
|
---|
| 1235 | retry:
|
---|
| 1236 | n = select(max, rp, wp, ep, tp);
|
---|
| 1237 | if (n < 0) {
|
---|
| 1238 | if (errno != EINTR)
|
---|
| 1239 | mrb_sys_fail(mrb, "select failed");
|
---|
| 1240 | if (tp == NULL)
|
---|
| 1241 | goto retry;
|
---|
| 1242 | interrupt_flag = 1;
|
---|
| 1243 | }
|
---|
| 1244 |
|
---|
| 1245 | if (!pending && n == 0)
|
---|
| 1246 | return mrb_nil_value();
|
---|
| 1247 |
|
---|
| 1248 | result = mrb_ary_new_capa(mrb, 3);
|
---|
| 1249 | mrb_ary_push(mrb, result, rp? mrb_ary_new(mrb) : mrb_ary_new_capa(mrb, 0));
|
---|
| 1250 | mrb_ary_push(mrb, result, wp? mrb_ary_new(mrb) : mrb_ary_new_capa(mrb, 0));
|
---|
| 1251 | mrb_ary_push(mrb, result, ep? mrb_ary_new(mrb) : mrb_ary_new_capa(mrb, 0));
|
---|
| 1252 |
|
---|
| 1253 | if (interrupt_flag == 0) {
|
---|
| 1254 | if (rp) {
|
---|
| 1255 | list = RARRAY_PTR(result)[0];
|
---|
| 1256 | for (i = 0; i < RARRAY_LEN(read); i++) {
|
---|
| 1257 | fptr = io_get_open_fptr(mrb, RARRAY_PTR(read)[i]);
|
---|
| 1258 | if (FD_ISSET(fptr->fd, rp) ||
|
---|
| 1259 | FD_ISSET(fptr->fd, &pset)) {
|
---|
| 1260 | mrb_ary_push(mrb, list, RARRAY_PTR(read)[i]);
|
---|
| 1261 | }
|
---|
| 1262 | }
|
---|
| 1263 | }
|
---|
| 1264 |
|
---|
| 1265 | if (wp) {
|
---|
| 1266 | list = RARRAY_PTR(result)[1];
|
---|
| 1267 | for (i = 0; i < RARRAY_LEN(write); i++) {
|
---|
| 1268 | fptr = io_get_open_fptr(mrb, RARRAY_PTR(write)[i]);
|
---|
| 1269 | if (FD_ISSET(fptr->fd, wp)) {
|
---|
| 1270 | mrb_ary_push(mrb, list, RARRAY_PTR(write)[i]);
|
---|
| 1271 | } else if (fptr->fd2 >= 0 && FD_ISSET(fptr->fd2, wp)) {
|
---|
| 1272 | mrb_ary_push(mrb, list, RARRAY_PTR(write)[i]);
|
---|
| 1273 | }
|
---|
| 1274 | }
|
---|
| 1275 | }
|
---|
| 1276 |
|
---|
| 1277 | if (ep) {
|
---|
| 1278 | list = RARRAY_PTR(result)[2];
|
---|
| 1279 | for (i = 0; i < RARRAY_LEN(except); i++) {
|
---|
| 1280 | fptr = io_get_open_fptr(mrb, RARRAY_PTR(except)[i]);
|
---|
| 1281 | if (FD_ISSET(fptr->fd, ep)) {
|
---|
| 1282 | mrb_ary_push(mrb, list, RARRAY_PTR(except)[i]);
|
---|
| 1283 | } else if (fptr->fd2 >= 0 && FD_ISSET(fptr->fd2, ep)) {
|
---|
| 1284 | mrb_ary_push(mrb, list, RARRAY_PTR(except)[i]);
|
---|
| 1285 | }
|
---|
| 1286 | }
|
---|
| 1287 | }
|
---|
| 1288 | }
|
---|
| 1289 |
|
---|
| 1290 | return result;
|
---|
| 1291 | }
|
---|
| 1292 |
|
---|
| 1293 | int
|
---|
| 1294 | mrb_io_fileno(mrb_state *mrb, mrb_value io)
|
---|
| 1295 | {
|
---|
| 1296 | struct mrb_io *fptr;
|
---|
| 1297 | fptr = io_get_open_fptr(mrb, io);
|
---|
| 1298 | return fptr->fd;
|
---|
| 1299 | }
|
---|
| 1300 |
|
---|
| 1301 | static mrb_value
|
---|
| 1302 | mrb_io_fileno_m(mrb_state *mrb, mrb_value io)
|
---|
| 1303 | {
|
---|
| 1304 | int fd = mrb_io_fileno(mrb, io);
|
---|
| 1305 | return mrb_fixnum_value(fd);
|
---|
| 1306 | }
|
---|
| 1307 |
|
---|
| 1308 | mrb_value
|
---|
| 1309 | mrb_io_close_on_exec_p(mrb_state *mrb, mrb_value self)
|
---|
| 1310 | {
|
---|
| 1311 | #if defined(F_GETFD) && defined(F_SETFD) && defined(FD_CLOEXEC)
|
---|
| 1312 | struct mrb_io *fptr;
|
---|
| 1313 | int ret;
|
---|
| 1314 |
|
---|
| 1315 | fptr = io_get_open_fptr(mrb, self);
|
---|
| 1316 |
|
---|
| 1317 | if (fptr->fd2 >= 0) {
|
---|
| 1318 | if ((ret = fcntl(fptr->fd2, F_GETFD)) == -1) mrb_sys_fail(mrb, "F_GETFD failed");
|
---|
| 1319 | if (!(ret & FD_CLOEXEC)) return mrb_false_value();
|
---|
| 1320 | }
|
---|
| 1321 |
|
---|
| 1322 | if ((ret = fcntl(fptr->fd, F_GETFD)) == -1) mrb_sys_fail(mrb, "F_GETFD failed");
|
---|
| 1323 | if (!(ret & FD_CLOEXEC)) return mrb_false_value();
|
---|
| 1324 | return mrb_true_value();
|
---|
| 1325 |
|
---|
| 1326 | #else
|
---|
| 1327 | mrb_raise(mrb, E_NOTIMP_ERROR, "IO#close_on_exec? is not supported on the platform");
|
---|
| 1328 | return mrb_false_value();
|
---|
| 1329 | #endif
|
---|
| 1330 | }
|
---|
| 1331 |
|
---|
| 1332 | mrb_value
|
---|
| 1333 | mrb_io_set_close_on_exec(mrb_state *mrb, mrb_value self)
|
---|
| 1334 | {
|
---|
| 1335 | #if defined(F_GETFD) && defined(F_SETFD) && defined(FD_CLOEXEC)
|
---|
| 1336 | struct mrb_io *fptr;
|
---|
| 1337 | int flag, ret;
|
---|
| 1338 | mrb_bool b;
|
---|
| 1339 |
|
---|
| 1340 | fptr = io_get_open_fptr(mrb, self);
|
---|
| 1341 | mrb_get_args(mrb, "b", &b);
|
---|
| 1342 | flag = b ? FD_CLOEXEC : 0;
|
---|
| 1343 |
|
---|
| 1344 | if (fptr->fd2 >= 0) {
|
---|
| 1345 | if ((ret = fcntl(fptr->fd2, F_GETFD)) == -1) mrb_sys_fail(mrb, "F_GETFD failed");
|
---|
| 1346 | if ((ret & FD_CLOEXEC) != flag) {
|
---|
| 1347 | ret = (ret & ~FD_CLOEXEC) | flag;
|
---|
| 1348 | ret = fcntl(fptr->fd2, F_SETFD, ret);
|
---|
| 1349 |
|
---|
| 1350 | if (ret == -1) mrb_sys_fail(mrb, "F_SETFD failed");
|
---|
| 1351 | }
|
---|
| 1352 | }
|
---|
| 1353 |
|
---|
| 1354 | if ((ret = fcntl(fptr->fd, F_GETFD)) == -1) mrb_sys_fail(mrb, "F_GETFD failed");
|
---|
| 1355 | if ((ret & FD_CLOEXEC) != flag) {
|
---|
| 1356 | ret = (ret & ~FD_CLOEXEC) | flag;
|
---|
| 1357 | ret = fcntl(fptr->fd, F_SETFD, ret);
|
---|
| 1358 | if (ret == -1) mrb_sys_fail(mrb, "F_SETFD failed");
|
---|
| 1359 | }
|
---|
| 1360 |
|
---|
| 1361 | return mrb_bool_value(b);
|
---|
| 1362 | #else
|
---|
| 1363 | mrb_raise(mrb, E_NOTIMP_ERROR, "IO#close_on_exec= is not supported on the platform");
|
---|
| 1364 | return mrb_nil_value();
|
---|
| 1365 | #endif
|
---|
| 1366 | }
|
---|
| 1367 |
|
---|
| 1368 | mrb_value
|
---|
| 1369 | mrb_io_set_sync(mrb_state *mrb, mrb_value self)
|
---|
| 1370 | {
|
---|
| 1371 | struct mrb_io *fptr;
|
---|
| 1372 | mrb_bool b;
|
---|
| 1373 |
|
---|
| 1374 | fptr = io_get_open_fptr(mrb, self);
|
---|
| 1375 | mrb_get_args(mrb, "b", &b);
|
---|
| 1376 | fptr->sync = b;
|
---|
| 1377 | return mrb_bool_value(b);
|
---|
| 1378 | }
|
---|
| 1379 |
|
---|
| 1380 | mrb_value
|
---|
| 1381 | mrb_io_sync(mrb_state *mrb, mrb_value self)
|
---|
| 1382 | {
|
---|
| 1383 | struct mrb_io *fptr;
|
---|
| 1384 | fptr = io_get_open_fptr(mrb, self);
|
---|
| 1385 | return mrb_bool_value(fptr->sync);
|
---|
| 1386 | }
|
---|
| 1387 |
|
---|
| 1388 | #ifndef MRB_WITH_IO_PREAD_PWRITE
|
---|
| 1389 | # define mrb_io_pread mrb_notimplement_m
|
---|
| 1390 | # define mrb_io_pwrite mrb_notimplement_m
|
---|
| 1391 | #else
|
---|
| 1392 | static off_t
|
---|
| 1393 | value2off(mrb_state *mrb, mrb_value offv)
|
---|
| 1394 | {
|
---|
| 1395 | switch (mrb_type(offv)) {
|
---|
| 1396 | #ifndef MRB_WITHOUT_FLOAT
|
---|
| 1397 | case MRB_TT_FLOAT:
|
---|
| 1398 | {
|
---|
| 1399 | mrb_float tmp = mrb_float(offv);
|
---|
| 1400 | if (tmp < INT64_MIN || tmp > INT64_MAX) {
|
---|
| 1401 | /* fall through to use convert by `mrb_int()` (and raise error if out of range) */
|
---|
| 1402 | } else {
|
---|
| 1403 | return (off_t)tmp;
|
---|
| 1404 | }
|
---|
| 1405 | }
|
---|
| 1406 | /* fall through */
|
---|
| 1407 | #endif /* MRB_WITHOUT_FLOAT */
|
---|
| 1408 | default:
|
---|
| 1409 | return (off_t)mrb_int(mrb, offv);
|
---|
| 1410 | }
|
---|
| 1411 | }
|
---|
| 1412 |
|
---|
| 1413 | /*
|
---|
| 1414 | * call-seq:
|
---|
| 1415 | * pread(maxlen, offset, outbuf = "") -> outbuf
|
---|
| 1416 | */
|
---|
| 1417 | static mrb_value
|
---|
| 1418 | mrb_io_pread(mrb_state *mrb, mrb_value io)
|
---|
| 1419 | {
|
---|
| 1420 | mrb_value buf = mrb_nil_value();
|
---|
| 1421 | mrb_value off;
|
---|
| 1422 | mrb_int maxlen;
|
---|
| 1423 |
|
---|
| 1424 | mrb_get_args(mrb, "io|S!", &maxlen, &off, &buf);
|
---|
| 1425 |
|
---|
| 1426 | return mrb_io_sysread_common(mrb, pread, io, buf, maxlen, value2off(mrb, off));
|
---|
| 1427 | }
|
---|
| 1428 |
|
---|
| 1429 | /*
|
---|
| 1430 | * call-seq:
|
---|
| 1431 | * pwrite(buffer, offset) -> wrote_bytes
|
---|
| 1432 | */
|
---|
| 1433 | static mrb_value
|
---|
| 1434 | mrb_io_pwrite(mrb_state *mrb, mrb_value io)
|
---|
| 1435 | {
|
---|
| 1436 | mrb_value buf, off;
|
---|
| 1437 |
|
---|
| 1438 | mrb_get_args(mrb, "So", &buf, &off);
|
---|
| 1439 |
|
---|
| 1440 | return mrb_io_syswrite_common(mrb, pwrite, io, buf, value2off(mrb, off));
|
---|
| 1441 | }
|
---|
| 1442 | #endif /* MRB_WITH_IO_PREAD_PWRITE */
|
---|
| 1443 |
|
---|
| 1444 | static mrb_value
|
---|
| 1445 | io_bufread(mrb_state *mrb, mrb_value str, mrb_int len)
|
---|
| 1446 | {
|
---|
| 1447 | mrb_value str2;
|
---|
| 1448 | mrb_int newlen;
|
---|
| 1449 | struct RString *s;
|
---|
| 1450 | char *p;
|
---|
| 1451 |
|
---|
| 1452 | s = RSTRING(str);
|
---|
| 1453 | mrb_str_modify(mrb, s);
|
---|
| 1454 | p = RSTR_PTR(s);
|
---|
| 1455 | str2 = mrb_str_new(mrb, p, len);
|
---|
| 1456 | newlen = RSTR_LEN(s)-len;
|
---|
| 1457 | memmove(p, p+len, newlen);
|
---|
| 1458 | p[newlen] = '\0';
|
---|
| 1459 | RSTR_SET_LEN(s, newlen);
|
---|
| 1460 |
|
---|
| 1461 | return str2;
|
---|
| 1462 | }
|
---|
| 1463 |
|
---|
| 1464 | static mrb_value
|
---|
| 1465 | mrb_io_bufread(mrb_state *mrb, mrb_value self)
|
---|
| 1466 | {
|
---|
| 1467 | mrb_value str;
|
---|
| 1468 | mrb_int len;
|
---|
| 1469 |
|
---|
| 1470 | mrb_get_args(mrb, "Si", &str, &len);
|
---|
| 1471 | return io_bufread(mrb, str, len);
|
---|
| 1472 | }
|
---|
| 1473 |
|
---|
| 1474 | static mrb_value
|
---|
| 1475 | mrb_io_readchar(mrb_state *mrb, mrb_value self)
|
---|
| 1476 | {
|
---|
| 1477 | mrb_value buf;
|
---|
| 1478 | mrb_int len = 1;
|
---|
| 1479 | #ifdef MRB_UTF8_STRING
|
---|
| 1480 | unsigned char c;
|
---|
| 1481 | #endif
|
---|
| 1482 |
|
---|
| 1483 | mrb_get_args(mrb, "S", &buf);
|
---|
| 1484 | mrb_assert(RSTRING_PTR(buf) > 0);
|
---|
| 1485 | mrb_str_modify(mrb, RSTRING(buf));
|
---|
| 1486 | #ifdef MRB_UTF8_STRING
|
---|
| 1487 | c = RSTRING_PTR(buf)[0];
|
---|
| 1488 | if (c & 0x80) {
|
---|
| 1489 | len = mrb_utf8len(RSTRING_PTR(buf), RSTRING_END(buf));
|
---|
| 1490 | if (len == 1 && RSTRING_LEN(buf) < 4) { /* partial UTF-8 */
|
---|
| 1491 | mrb_int blen = RSTRING_LEN(buf);
|
---|
| 1492 | ssize_t n;
|
---|
| 1493 |
|
---|
| 1494 | struct mrb_io *fptr = (struct mrb_io*)io_get_open_fptr(mrb, self);
|
---|
| 1495 |
|
---|
| 1496 | if (!fptr->readable) {
|
---|
| 1497 | mrb_raise(mrb, E_IO_ERROR, "not opened for reading");
|
---|
| 1498 | }
|
---|
| 1499 | /* refill the buffer */
|
---|
| 1500 | mrb_str_resize(mrb, buf, 4096);
|
---|
| 1501 | n = read(fptr->fd, RSTRING_PTR(buf)+blen, 4096-blen);
|
---|
| 1502 | if (n < 0) mrb_sys_fail(mrb, "sysread failed");
|
---|
| 1503 | mrb_str_resize(mrb, buf, blen+n);
|
---|
| 1504 | }
|
---|
| 1505 | len = mrb_utf8len(RSTRING_PTR(buf), RSTRING_END(buf));
|
---|
| 1506 | }
|
---|
| 1507 | #endif
|
---|
| 1508 | return io_bufread(mrb, buf, len);
|
---|
| 1509 | }
|
---|
| 1510 |
|
---|
| 1511 | void
|
---|
| 1512 | mrb_init_io(mrb_state *mrb)
|
---|
| 1513 | {
|
---|
| 1514 | struct RClass *io;
|
---|
| 1515 |
|
---|
| 1516 | io = mrb_define_class(mrb, "IO", mrb->object_class);
|
---|
| 1517 | MRB_SET_INSTANCE_TT(io, MRB_TT_DATA);
|
---|
| 1518 |
|
---|
| 1519 | mrb_include_module(mrb, io, mrb_module_get(mrb, "Enumerable")); /* 15.2.20.3 */
|
---|
| 1520 | mrb_define_class_method(mrb, io, "_popen", mrb_io_s_popen, MRB_ARGS_ARG(1,2));
|
---|
| 1521 | mrb_define_class_method(mrb, io, "_sysclose", mrb_io_s_sysclose, MRB_ARGS_REQ(1));
|
---|
| 1522 | mrb_define_class_method(mrb, io, "for_fd", mrb_io_s_for_fd, MRB_ARGS_ARG(1,2));
|
---|
| 1523 | mrb_define_class_method(mrb, io, "select", mrb_io_s_select, MRB_ARGS_ARG(1,3));
|
---|
| 1524 | mrb_define_class_method(mrb, io, "sysopen", mrb_io_s_sysopen, MRB_ARGS_ARG(1,2));
|
---|
| 1525 | #if !defined(_WIN32) && !(defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)
|
---|
| 1526 | mrb_define_class_method(mrb, io, "_pipe", mrb_io_s_pipe, MRB_ARGS_NONE());
|
---|
| 1527 | #endif
|
---|
| 1528 |
|
---|
| 1529 | mrb_define_method(mrb, io, "initialize", mrb_io_initialize, MRB_ARGS_ARG(1,2)); /* 15.2.20.5.21 (x)*/
|
---|
| 1530 | mrb_define_method(mrb, io, "initialize_copy", mrb_io_initialize_copy, MRB_ARGS_REQ(1));
|
---|
| 1531 | mrb_define_method(mrb, io, "_check_readable", mrb_io_check_readable, MRB_ARGS_NONE());
|
---|
| 1532 | mrb_define_method(mrb, io, "isatty", mrb_io_isatty, MRB_ARGS_NONE());
|
---|
| 1533 | mrb_define_method(mrb, io, "sync", mrb_io_sync, MRB_ARGS_NONE());
|
---|
| 1534 | mrb_define_method(mrb, io, "sync=", mrb_io_set_sync, MRB_ARGS_REQ(1));
|
---|
| 1535 | mrb_define_method(mrb, io, "sysread", mrb_io_sysread, MRB_ARGS_ARG(1,1));
|
---|
| 1536 | mrb_define_method(mrb, io, "sysseek", mrb_io_sysseek, MRB_ARGS_ARG(1,1));
|
---|
| 1537 | mrb_define_method(mrb, io, "syswrite", mrb_io_syswrite, MRB_ARGS_REQ(1));
|
---|
| 1538 | mrb_define_method(mrb, io, "close", mrb_io_close, MRB_ARGS_NONE()); /* 15.2.20.5.1 */
|
---|
| 1539 | mrb_define_method(mrb, io, "close_write", mrb_io_close_write, MRB_ARGS_NONE());
|
---|
| 1540 | mrb_define_method(mrb, io, "close_on_exec=", mrb_io_set_close_on_exec, MRB_ARGS_REQ(1));
|
---|
| 1541 | mrb_define_method(mrb, io, "close_on_exec?", mrb_io_close_on_exec_p, MRB_ARGS_NONE());
|
---|
| 1542 | mrb_define_method(mrb, io, "closed?", mrb_io_closed, MRB_ARGS_NONE()); /* 15.2.20.5.2 */
|
---|
| 1543 | mrb_define_method(mrb, io, "pid", mrb_io_pid, MRB_ARGS_NONE()); /* 15.2.20.5.2 */
|
---|
| 1544 | mrb_define_method(mrb, io, "fileno", mrb_io_fileno_m, MRB_ARGS_NONE());
|
---|
| 1545 | mrb_define_method(mrb, io, "pread", mrb_io_pread, MRB_ARGS_ANY()); /* ruby 2.5 feature */
|
---|
| 1546 | mrb_define_method(mrb, io, "pwrite", mrb_io_pwrite, MRB_ARGS_ANY()); /* ruby 2.5 feature */
|
---|
| 1547 |
|
---|
| 1548 | mrb_define_method(mrb, io, "_readchar", mrb_io_readchar, MRB_ARGS_REQ(1));
|
---|
| 1549 | mrb_define_class_method(mrb, io, "_bufread", mrb_io_bufread, MRB_ARGS_REQ(2));
|
---|
| 1550 | }
|
---|