1 | #define _REENTRANT 1 |
1 | #include "libeio/xthread.h" |
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2 | |
2 | #include <errno.h> |
3 | #include <errno.h> |
3 | |
4 | |
4 | #include "EXTERN.h" |
5 | #include "EXTERN.h" |
5 | #include "perl.h" |
6 | #include "perl.h" |
6 | #include "XSUB.h" |
7 | #include "XSUB.h" |
7 | |
8 | |
8 | #include "autoconf/config.h" |
9 | #include "schmorp.h" |
9 | |
10 | |
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11 | #include <stddef.h> |
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12 | #include <stdlib.h> |
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13 | #include <errno.h> |
10 | #include <sys/types.h> |
14 | #include <sys/types.h> |
11 | #include <sys/stat.h> |
15 | #include <sys/stat.h> |
12 | |
16 | #include <sys/statvfs.h> |
13 | #include <unistd.h> |
17 | #include <limits.h> |
14 | #include <fcntl.h> |
18 | #include <fcntl.h> |
15 | #include <signal.h> |
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16 | #include <sched.h> |
19 | #include <sched.h> |
17 | |
20 | |
18 | #include <pthread.h> |
21 | #if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES |
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22 | # include <sys/mman.h> |
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23 | #endif |
19 | |
24 | |
20 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
25 | /* perl namespace pollution */ |
21 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
26 | #undef VERSION |
22 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
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23 | |
27 | |
24 | #if __ia64 |
28 | #ifdef _WIN32 |
25 | # define STACKSIZE 65536 |
29 | |
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30 | # define EIO_STRUCT_DIRENT Direntry_t |
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31 | # undef malloc |
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32 | # undef free |
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33 | |
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34 | // perl overrides all those nice win32 functions |
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35 | # undef open |
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36 | # undef read |
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37 | # undef write |
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38 | # undef send |
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39 | # undef recv |
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40 | # undef stat |
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41 | # undef fstat |
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42 | # define lstat stat |
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43 | # undef truncate |
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44 | # undef ftruncate |
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45 | # undef open |
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46 | # undef close |
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47 | # undef unlink |
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48 | # undef rmdir |
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49 | # undef rename |
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50 | # undef lseek |
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51 | |
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52 | # define chown(a,b,c) (errno = ENOSYS, -1) |
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53 | # define fchown(a,b,c) (errno = ENOSYS, -1) |
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54 | # define fchmod(a,b) (errno = ENOSYS, -1) |
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55 | # define symlink(a,b) (errno = ENOSYS, -1) |
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56 | # define readlink(a,b,c) (errno = ENOSYS, -1) |
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57 | # define mknod(a,b,c) (errno = ENOSYS, -1) |
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58 | # define truncate(a,b) (errno = ENOSYS, -1) |
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59 | # define ftruncate(fd,o) chsize ((fd), (o)) |
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60 | # define fsync(fd) _commit (fd) |
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61 | # define opendir(fd) (errno = ENOSYS, 0) |
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62 | # define readdir(fd) (errno = ENOSYS, -1) |
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63 | # define closedir(fd) (errno = ENOSYS, -1) |
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64 | # define mkdir(a,b) mkdir (a) |
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65 | |
26 | #else |
66 | #else |
27 | # define STACKSIZE 4096 |
67 | |
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68 | # include <sys/time.h> |
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69 | # include <sys/select.h> |
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70 | # include <unistd.h> |
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71 | # include <utime.h> |
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72 | # include <signal.h> |
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73 | # define EIO_STRUCT_DIRENT struct dirent |
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74 | |
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75 | #endif |
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76 | |
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77 | /* perl stupidly overrides readdir and maybe others */ |
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78 | /* with thread-unsafe versions, imagine that :( */ |
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79 | #undef readdir |
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80 | #undef opendir |
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81 | #undef closedir |
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82 | |
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83 | #define EIO_STRUCT_STAT Stat_t |
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84 | |
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85 | /* use NV for 32 bit perls as it allows larger offsets */ |
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86 | #if IVSIZE >= 8 |
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87 | # define VAL64 IV |
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88 | # define SvVAL64 SvIV |
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89 | # define newSVval64 newSViv |
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90 | #else |
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91 | # define VAL64 NV |
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92 | # define SvVAL64 SvNV |
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93 | # define newSVval64 newSVnv |
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94 | #endif |
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95 | |
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96 | /*****************************************************************************/ |
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97 | |
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98 | #if __GNUC__ >= 3 |
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99 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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100 | #else |
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101 | # define expect(expr,value) (expr) |
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102 | #endif |
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103 | |
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104 | #define expect_false(expr) expect ((expr) != 0, 0) |
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105 | #define expect_true(expr) expect ((expr) != 0, 1) |
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106 | |
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107 | /*****************************************************************************/ |
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108 | |
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109 | typedef SV SV8; /* byte-sv, used for argument-checking */ |
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110 | typedef int aio_rfd; /* read file desriptor */ |
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111 | typedef int aio_wfd; /* write file descriptor */ |
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112 | |
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113 | static HV *aio_stash, *aio_req_stash, *aio_grp_stash; |
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114 | |
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115 | #define EIO_REQ_MEMBERS \ |
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116 | SV *callback; \ |
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117 | SV *sv1, *sv2; \ |
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118 | STRLEN stroffset; \ |
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119 | SV *self; |
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120 | |
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121 | #define EIO_NO_WRAPPERS 1 |
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122 | |
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123 | #include "libeio/config.h" |
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124 | #include "libeio/eio.h" |
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125 | |
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126 | #ifndef POSIX_FADV_NORMAL |
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127 | # define POSIX_FADV_NORMAL 0 |
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128 | #endif |
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129 | #ifndef POSIX_FADV_SEQUENTIAL |
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130 | # define POSIX_FADV_SEQUENTIAL 0 |
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131 | #endif |
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132 | #ifndef POSIX_FADV_RANDOM |
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133 | # define POSIX_FADV_RANDOM 0 |
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134 | #endif |
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135 | #ifndef POSIX_FADV_NOREUSE |
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136 | # define POSIX_FADV_NOREUSE 0 |
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137 | #endif |
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138 | #ifndef POSIX_FADV_WILLNEED |
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139 | # define POSIX_FADV_WILLNEED 0 |
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140 | #endif |
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141 | #ifndef POSIX_FADV_DONTNEED |
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142 | # define POSIX_FADV_DONTNEED 0 |
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143 | #endif |
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144 | |
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145 | #if !HAVE_POSIX_FADVISE |
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146 | # define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */ |
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147 | #endif |
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148 | |
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149 | #ifndef POSIX_MADV_NORMAL |
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150 | # define POSIX_MADV_NORMAL 0 |
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151 | #endif |
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152 | #ifndef POSIX_MADV_SEQUENTIAL |
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153 | # define POSIX_MADV_SEQUENTIAL 0 |
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154 | #endif |
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155 | #ifndef POSIX_MADV_RANDOM |
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156 | # define POSIX_MADV_RANDOM 0 |
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157 | #endif |
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158 | #ifndef POSIX_MADV_WILLNEED |
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159 | # define POSIX_MADV_WILLNEED 0 |
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160 | #endif |
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161 | #ifndef POSIX_MADV_DONTNEED |
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162 | # define POSIX_MADV_DONTNEED 0 |
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163 | #endif |
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164 | |
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165 | #if !HAVE_POSIX_MADVISE |
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166 | # define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */ |
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167 | #endif |
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168 | |
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169 | #ifndef PROT_NONE |
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170 | # define PROT_NONE 0 |
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171 | #endif |
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172 | #ifndef PROT_READ |
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173 | # define PROT_READ 0 |
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174 | #endif |
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175 | #ifndef PROT_WRITE |
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176 | # define PROT_READ 0 |
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177 | #endif |
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178 | #ifndef PROT_EXEC |
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179 | # define PROT_EXEC 0 |
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180 | #endif |
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181 | |
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182 | #ifndef ST_NODEV |
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183 | # define ST_NODEV 0 |
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184 | #endif |
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185 | #ifndef ST_NOEXEC |
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186 | # define ST_NOEXEC 0 |
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187 | #endif |
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188 | #ifndef ST_SYNCHRONOUS |
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189 | # define ST_SYNCHRONOUS 0 |
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190 | #endif |
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191 | #ifndef ST_MANDLOCK |
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192 | # define ST_MANDLOCK 0 |
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193 | #endif |
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194 | #ifndef ST_WRITE |
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195 | # define ST_WRITE 0 |
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196 | #endif |
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197 | #ifndef ST_APPEND |
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198 | # define ST_APPEND 0 |
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199 | #endif |
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200 | #ifndef ST_IMMUTABLE |
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201 | # define ST_IMMUTABLE 0 |
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202 | #endif |
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203 | #ifndef ST_NOATIME |
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204 | # define ST_NOATIME 0 |
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205 | #endif |
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206 | #ifndef ST_NODIRATIME |
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207 | # define ST_NODIRATIME 0 |
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208 | #endif |
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209 | #ifndef ST_RELATIME |
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210 | # define ST_RELATIME 0 |
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211 | #endif |
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212 | |
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213 | #ifndef MAP_ANONYMOUS |
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214 | # ifdef MAP_ANON |
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215 | # define MAP_ANONYMOUS MAP_ANON |
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216 | # else |
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217 | # define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */ |
28 | #endif |
218 | # endif |
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219 | #endif |
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220 | #ifndef MAP_HUGETLB |
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221 | # define MAP_HUGETLB 0 |
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222 | #endif |
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223 | #ifndef MAP_LOCKED |
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224 | # define MAP_LOCKED 0 |
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225 | #endif |
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226 | #ifndef MAP_NORESERVE |
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227 | # define MAP_NORESERVE 0 |
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228 | #endif |
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229 | #ifndef MAP_POPULATE |
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230 | # define MAP_POPULATE 0 |
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231 | #endif |
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232 | #ifndef MAP_NONBLOCK |
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233 | # define MAP_NONBLOCK 0 |
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234 | #endif |
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235 | |
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236 | #ifndef PAGESIZE |
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237 | # define PAGESIZE sysconf (_SC_PAGESIZE) |
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238 | #endif |
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239 | |
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240 | static int req_invoke (eio_req *req); |
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241 | #define EIO_FINISH(req) req_invoke (req) |
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242 | static void req_destroy (eio_req *grp); |
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243 | #define EIO_DESTROY(req) req_destroy (req) |
29 | |
244 | |
30 | enum { |
245 | enum { |
31 | REQ_QUIT, |
246 | FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ |
32 | REQ_OPEN, REQ_CLOSE, |
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33 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
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35 | REQ_FSYNC, REQ_FDATASYNC, |
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36 | REQ_UNLINK, REQ_RMDIR, |
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37 | REQ_SYMLINK, |
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38 | }; |
247 | }; |
39 | |
248 | |
40 | typedef struct aio_cb { |
249 | #include "libeio/eio.c" |
41 | struct aio_cb *volatile next; |
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42 | |
250 | |
43 | int type; |
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44 | |
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45 | int fd; |
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46 | off_t offset; |
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47 | size_t length; |
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48 | ssize_t result; |
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49 | mode_t mode; /* open */ |
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50 | int errorno; |
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51 | SV *data, *callback, *fh; |
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52 | void *dataptr, *data2ptr; |
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53 | STRLEN dataoffset; |
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54 | |
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55 | Stat_t *statdata; |
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56 | } aio_cb; |
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57 | |
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58 | typedef aio_cb *aio_req; |
251 | typedef eio_req *aio_req; |
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252 | typedef eio_req *aio_req_ornot; |
59 | |
253 | |
60 | static int started, wanted; |
254 | static SV *on_next_submit; |
61 | static volatile int nreqs; |
255 | static int next_pri = EIO_PRI_DEFAULT; |
62 | static int max_outstanding = 1<<30; |
256 | static int max_outstanding; |
63 | static int respipe [2]; |
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64 | |
257 | |
65 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
258 | static s_epipe respipe; |
66 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
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67 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
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68 | |
259 | |
69 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
260 | static void req_destroy (aio_req req); |
70 | static volatile aio_req ress, rese; /* queue start, queue end */ |
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71 | |
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72 | static void free_req (aio_req req) |
261 | static void req_cancel (aio_req req); |
73 | { |
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74 | if (req->data) |
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75 | SvREFCNT_dec (req->data); |
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76 | |
262 | |
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263 | static void want_poll (void) |
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264 | { |
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265 | /* write a dummy byte to the pipe so fh becomes ready */ |
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266 | s_epipe_signal (&respipe); |
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267 | } |
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268 | |
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269 | static void done_poll (void) |
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270 | { |
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271 | /* read any signals sent by the worker threads */ |
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272 | s_epipe_drain (&respipe); |
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273 | } |
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274 | |
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275 | /* must be called at most once */ |
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276 | static SV *req_sv (aio_req req, HV *stash) |
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277 | { |
77 | if (req->fh) |
278 | if (!req->self) |
78 | SvREFCNT_dec (req->fh); |
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79 | |
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80 | if (req->statdata) |
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81 | Safefree (req->statdata); |
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82 | |
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83 | if (req->callback) |
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84 | SvREFCNT_dec (req->callback); |
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85 | |
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86 | Safefree (req); |
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87 | } |
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88 | |
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89 | static void |
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90 | poll_wait () |
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91 | { |
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92 | if (nreqs && !ress) |
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93 | { |
279 | { |
94 | fd_set rfd; |
280 | req->self = (SV *)newHV (); |
95 | FD_ZERO(&rfd); |
281 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
96 | FD_SET(respipe [0], &rfd); |
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97 | |
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98 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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99 | } |
282 | } |
100 | } |
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101 | |
283 | |
102 | static int |
284 | return sv_2mortal (sv_bless (newRV_inc (req->self), stash)); |
103 | poll_cb () |
285 | } |
104 | { |
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105 | dSP; |
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106 | int count = 0; |
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107 | int do_croak = 0; |
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108 | aio_req req; |
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109 | |
286 | |
110 | for (;;) |
287 | static aio_req SvAIO_REQ (SV *sv) |
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288 | { |
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289 | MAGIC *mg; |
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290 | |
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291 | if (!SvROK (sv) |
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292 | || (SvSTASH (SvRV (sv)) != aio_grp_stash |
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293 | && SvSTASH (SvRV (sv)) != aio_req_stash |
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294 | && !sv_derived_from (sv, "IO::AIO::REQ"))) |
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295 | croak ("object of class IO::AIO::REQ expected"); |
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296 | |
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297 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
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298 | |
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299 | return mg ? (aio_req)mg->mg_ptr : 0; |
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300 | } |
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301 | |
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302 | static void aio_grp_feed (aio_req grp) |
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303 | { |
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304 | if (grp->sv2 && SvOK (grp->sv2)) |
111 | { |
305 | { |
112 | pthread_mutex_lock (&reslock); |
306 | dSP; |
113 | req = ress; |
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114 | |
307 | |
115 | if (req) |
308 | ENTER; |
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309 | SAVETMPS; |
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310 | PUSHMARK (SP); |
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311 | XPUSHs (req_sv (grp, aio_grp_stash)); |
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312 | PUTBACK; |
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313 | call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
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314 | SPAGAIN; |
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315 | FREETMPS; |
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316 | LEAVE; |
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317 | } |
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318 | } |
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319 | |
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320 | static void req_submit (eio_req *req) |
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321 | { |
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322 | eio_submit (req); |
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323 | |
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324 | if (expect_false (on_next_submit)) |
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325 | { |
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326 | dSP; |
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327 | SV *cb = sv_2mortal (on_next_submit); |
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328 | |
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329 | on_next_submit = 0; |
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330 | |
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331 | PUSHMARK (SP); |
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332 | PUTBACK; |
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333 | call_sv (cb, G_DISCARD | G_EVAL); |
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334 | } |
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335 | } |
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336 | |
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337 | static int req_invoke (eio_req *req) |
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338 | { |
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339 | if (req->flags & FLAG_SV2_RO_OFF) |
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340 | SvREADONLY_off (req->sv2); |
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341 | |
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342 | if (!EIO_CANCELLED (req) && req->callback) |
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343 | { |
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344 | dSP; |
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345 | static SV *sv_result_cache; /* caches the result integer SV */ |
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346 | SV *sv_result; |
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347 | |
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348 | ENTER; |
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349 | SAVETMPS; |
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350 | PUSHMARK (SP); |
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351 | EXTEND (SP, 1); |
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352 | |
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353 | /* do not recreate the result IV from scratch each time */ |
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354 | if (expect_true (sv_result_cache)) |
116 | { |
355 | { |
117 | ress = req->next; |
356 | sv_result = sv_result_cache; sv_result_cache = 0; |
118 | |
357 | SvIV_set (sv_result, req->result); |
119 | if (!ress) |
358 | SvIOK_only (sv_result); |
120 | { |
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121 | /* read any signals sent by the worker threads */ |
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122 | char buf [32]; |
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123 | while (read (respipe [0], buf, 32) == 32) |
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124 | ; |
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125 | |
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126 | rese = 0; |
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127 | } |
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128 | } |
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129 | |
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130 | pthread_mutex_unlock (&reslock); |
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131 | |
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132 | if (!req) |
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133 | break; |
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134 | |
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135 | nreqs--; |
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136 | |
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137 | if (req->type == REQ_QUIT) |
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138 | started--; |
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139 | else |
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140 | { |
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141 | int errorno = errno; |
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142 | errno = req->errorno; |
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143 | |
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144 | if (req->type == REQ_READ) |
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145 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
|
146 | |
|
|
147 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
148 | SvREADONLY_off (req->data); |
|
|
149 | |
|
|
150 | if (req->statdata) |
|
|
151 | { |
|
|
152 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
153 | PL_laststatval = req->result; |
|
|
154 | PL_statcache = *(req->statdata); |
|
|
155 | } |
|
|
156 | |
|
|
157 | ENTER; |
|
|
158 | PUSHMARK (SP); |
|
|
159 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
160 | |
|
|
161 | if (req->type == REQ_OPEN) |
|
|
162 | { |
|
|
163 | /* convert fd to fh */ |
|
|
164 | SV *fh; |
|
|
165 | |
|
|
166 | PUTBACK; |
|
|
167 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
168 | SPAGAIN; |
|
|
169 | |
|
|
170 | fh = SvREFCNT_inc (POPs); |
|
|
171 | |
|
|
172 | PUSHMARK (SP); |
|
|
173 | XPUSHs (sv_2mortal (fh)); |
|
|
174 | } |
|
|
175 | |
|
|
176 | if (SvOK (req->callback)) |
|
|
177 | { |
|
|
178 | PUTBACK; |
|
|
179 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
180 | SPAGAIN; |
|
|
181 | |
|
|
182 | if (SvTRUE (ERRSV)) |
|
|
183 | { |
|
|
184 | free_req (req); |
|
|
185 | croak (0); |
|
|
186 | } |
|
|
187 | } |
|
|
188 | |
|
|
189 | LEAVE; |
|
|
190 | |
|
|
191 | errno = errorno; |
|
|
192 | count++; |
|
|
193 | } |
|
|
194 | |
|
|
195 | free_req (req); |
|
|
196 | } |
|
|
197 | |
|
|
198 | return count; |
|
|
199 | } |
|
|
200 | |
|
|
201 | static void *aio_proc(void *arg); |
|
|
202 | |
|
|
203 | static void |
|
|
204 | start_thread (void) |
|
|
205 | { |
|
|
206 | sigset_t fullsigset, oldsigset; |
|
|
207 | pthread_t tid; |
|
|
208 | pthread_attr_t attr; |
|
|
209 | |
|
|
210 | pthread_attr_init (&attr); |
|
|
211 | pthread_attr_setstacksize (&attr, STACKSIZE); |
|
|
212 | // pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
213 | |
|
|
214 | sigfillset (&fullsigset); |
|
|
215 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
|
|
216 | |
|
|
217 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
|
|
218 | started++; |
|
|
219 | |
|
|
220 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
221 | } |
|
|
222 | |
|
|
223 | static void |
|
|
224 | send_req (aio_req req) |
|
|
225 | { |
|
|
226 | while (started < wanted && nreqs >= started) |
|
|
227 | start_thread (); |
|
|
228 | |
|
|
229 | nreqs++; |
|
|
230 | |
|
|
231 | pthread_mutex_lock (&reqlock); |
|
|
232 | |
|
|
233 | req->next = 0; |
|
|
234 | |
|
|
235 | if (reqe) |
|
|
236 | { |
|
|
237 | reqe->next = req; |
|
|
238 | reqe = req; |
|
|
239 | } |
|
|
240 | else |
|
|
241 | reqe = reqs = req; |
|
|
242 | |
|
|
243 | pthread_cond_signal (&reqwait); |
|
|
244 | pthread_mutex_unlock (&reqlock); |
|
|
245 | |
|
|
246 | if (nreqs > max_outstanding) |
|
|
247 | for (;;) |
|
|
248 | { |
|
|
249 | poll_cb (); |
|
|
250 | |
|
|
251 | if (nreqs <= max_outstanding) |
|
|
252 | break; |
|
|
253 | |
|
|
254 | poll_wait (); |
|
|
255 | } |
|
|
256 | } |
|
|
257 | |
|
|
258 | static void |
|
|
259 | end_thread (void) |
|
|
260 | { |
|
|
261 | aio_req req; |
|
|
262 | Newz (0, req, 1, aio_cb); |
|
|
263 | req->type = REQ_QUIT; |
|
|
264 | |
|
|
265 | send_req (req); |
|
|
266 | } |
|
|
267 | |
|
|
268 | static void min_parallel (int nthreads) |
|
|
269 | { |
|
|
270 | if (wanted < nthreads) |
|
|
271 | wanted = nthreads; |
|
|
272 | } |
|
|
273 | |
|
|
274 | static void max_parallel (int nthreads) |
|
|
275 | { |
|
|
276 | int cur = started; |
|
|
277 | |
|
|
278 | if (wanted > nthreads) |
|
|
279 | wanted = nthreads; |
|
|
280 | |
|
|
281 | while (cur > wanted) |
|
|
282 | { |
|
|
283 | end_thread (); |
|
|
284 | cur--; |
|
|
285 | } |
|
|
286 | |
|
|
287 | while (started > wanted) |
|
|
288 | { |
|
|
289 | poll_wait (); |
|
|
290 | poll_cb (); |
|
|
291 | } |
|
|
292 | } |
|
|
293 | |
|
|
294 | static void create_pipe () |
|
|
295 | { |
|
|
296 | if (pipe (respipe)) |
|
|
297 | croak ("unable to initialize result pipe"); |
|
|
298 | |
|
|
299 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
|
|
300 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
301 | |
|
|
302 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
303 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
304 | } |
|
|
305 | |
|
|
306 | static void atfork_prepare (void) |
|
|
307 | { |
|
|
308 | pthread_mutex_lock (&reqlock); |
|
|
309 | pthread_mutex_lock (&reslock); |
|
|
310 | } |
|
|
311 | |
|
|
312 | static void atfork_parent (void) |
|
|
313 | { |
|
|
314 | pthread_mutex_unlock (&reslock); |
|
|
315 | pthread_mutex_unlock (&reqlock); |
|
|
316 | } |
|
|
317 | |
|
|
318 | static void atfork_child (void) |
|
|
319 | { |
|
|
320 | aio_req prv; |
|
|
321 | |
|
|
322 | started = 0; |
|
|
323 | |
|
|
324 | while (reqs) |
|
|
325 | { |
|
|
326 | prv = reqs; |
|
|
327 | reqs = prv->next; |
|
|
328 | free_req (prv); |
|
|
329 | } |
|
|
330 | |
|
|
331 | reqs = reqe = 0; |
|
|
332 | |
|
|
333 | while (ress) |
|
|
334 | { |
|
|
335 | prv = ress; |
|
|
336 | ress = prv->next; |
|
|
337 | free_req (prv); |
|
|
338 | } |
|
|
339 | |
|
|
340 | ress = rese = 0; |
|
|
341 | |
|
|
342 | close (respipe [0]); |
|
|
343 | close (respipe [1]); |
|
|
344 | create_pipe (); |
|
|
345 | |
|
|
346 | atfork_parent (); |
|
|
347 | } |
|
|
348 | |
|
|
349 | /*****************************************************************************/ |
|
|
350 | /* work around various missing functions */ |
|
|
351 | |
|
|
352 | #if !HAVE_PREADWRITE |
|
|
353 | # define pread aio_pread |
|
|
354 | # define pwrite aio_pwrite |
|
|
355 | |
|
|
356 | /* |
|
|
357 | * make our pread/pwrite safe against themselves, but not against |
|
|
358 | * normal read/write by using a mutex. slows down execution a lot, |
|
|
359 | * but that's your problem, not mine. |
|
|
360 | */ |
|
|
361 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
|
|
362 | |
|
|
363 | static ssize_t |
|
|
364 | pread (int fd, void *buf, size_t count, off_t offset) |
|
|
365 | { |
|
|
366 | ssize_t res; |
|
|
367 | off_t ooffset; |
|
|
368 | |
|
|
369 | pthread_mutex_lock (&iolock); |
|
|
370 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
371 | lseek (fd, offset, SEEK_SET); |
|
|
372 | res = read (fd, buf, count); |
|
|
373 | lseek (fd, ooffset, SEEK_SET); |
|
|
374 | pthread_mutex_unlock (&iolock); |
|
|
375 | |
|
|
376 | return res; |
|
|
377 | } |
|
|
378 | |
|
|
379 | static ssize_t |
|
|
380 | pwrite (int fd, void *buf, size_t count, off_t offset) |
|
|
381 | { |
|
|
382 | ssize_t res; |
|
|
383 | off_t ooffset; |
|
|
384 | |
|
|
385 | pthread_mutex_lock (&iolock); |
|
|
386 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
387 | lseek (fd, offset, SEEK_SET); |
|
|
388 | res = write (fd, buf, count); |
|
|
389 | lseek (fd, offset, SEEK_SET); |
|
|
390 | pthread_mutex_unlock (&iolock); |
|
|
391 | |
|
|
392 | return res; |
|
|
393 | } |
|
|
394 | #endif |
|
|
395 | |
|
|
396 | #if !HAVE_FDATASYNC |
|
|
397 | # define fdatasync fsync |
|
|
398 | #endif |
|
|
399 | |
|
|
400 | #if !HAVE_READAHEAD |
|
|
401 | # define readahead aio_readahead |
|
|
402 | |
|
|
403 | static char readahead_buf[4096]; |
|
|
404 | |
|
|
405 | static ssize_t |
|
|
406 | readahead (int fd, off_t offset, size_t count) |
|
|
407 | { |
|
|
408 | while (count > 0) |
|
|
409 | { |
|
|
410 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
|
|
411 | |
|
|
412 | pread (fd, readahead_buf, len, offset); |
|
|
413 | offset += len; |
|
|
414 | count -= len; |
|
|
415 | } |
|
|
416 | |
|
|
417 | errno = 0; |
|
|
418 | } |
|
|
419 | #endif |
|
|
420 | |
|
|
421 | /*****************************************************************************/ |
|
|
422 | |
|
|
423 | static void * |
|
|
424 | aio_proc (void *thr_arg) |
|
|
425 | { |
|
|
426 | aio_req req; |
|
|
427 | int type; |
|
|
428 | |
|
|
429 | do |
|
|
430 | { |
|
|
431 | pthread_mutex_lock (&reqlock); |
|
|
432 | |
|
|
433 | for (;;) |
|
|
434 | { |
|
|
435 | req = reqs; |
|
|
436 | |
|
|
437 | if (reqs) |
|
|
438 | { |
|
|
439 | reqs = reqs->next; |
|
|
440 | if (!reqs) reqe = 0; |
|
|
441 | } |
|
|
442 | |
|
|
443 | if (req) |
|
|
444 | break; |
|
|
445 | |
|
|
446 | pthread_cond_wait (&reqwait, &reqlock); |
|
|
447 | } |
|
|
448 | |
|
|
449 | pthread_mutex_unlock (&reqlock); |
|
|
450 | |
|
|
451 | errno = 0; /* strictly unnecessary */ |
|
|
452 | |
|
|
453 | type = req->type; |
|
|
454 | |
|
|
455 | switch (type) |
|
|
456 | { |
|
|
457 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
|
|
458 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
|
|
459 | |
|
|
460 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
|
|
461 | |
|
|
462 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
|
|
463 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
|
|
464 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
|
|
465 | |
|
|
466 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
|
|
467 | case REQ_CLOSE: req->result = close (req->fd); break; |
|
|
468 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
|
|
469 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
470 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
|
|
471 | |
|
|
472 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
|
|
473 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
474 | |
|
|
475 | case REQ_QUIT: |
|
|
476 | break; |
|
|
477 | |
|
|
478 | default: |
|
|
479 | req->result = ENOSYS; |
|
|
480 | break; |
|
|
481 | } |
|
|
482 | |
|
|
483 | req->errorno = errno; |
|
|
484 | |
|
|
485 | pthread_mutex_lock (&reslock); |
|
|
486 | |
|
|
487 | req->next = 0; |
|
|
488 | |
|
|
489 | if (rese) |
|
|
490 | { |
|
|
491 | rese->next = req; |
|
|
492 | rese = req; |
|
|
493 | } |
359 | } |
494 | else |
360 | else |
495 | { |
361 | { |
496 | rese = ress = req; |
362 | sv_result = newSViv (req->result); |
497 | |
363 | SvREADONLY_on (sv_result); |
498 | /* write a dummy byte to the pipe so fh becomes ready */ |
|
|
499 | write (respipe [1], &respipe, 1); |
|
|
500 | } |
364 | } |
501 | |
365 | |
502 | pthread_mutex_unlock (&reslock); |
366 | switch (req->type) |
|
|
367 | { |
|
|
368 | case EIO_READDIR: |
|
|
369 | { |
|
|
370 | SV *rv = &PL_sv_undef; |
|
|
371 | |
|
|
372 | if (req->result >= 0) |
|
|
373 | { |
|
|
374 | int i; |
|
|
375 | char *names = (char *)req->ptr2; |
|
|
376 | eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */ |
|
|
377 | AV *av = newAV (); |
|
|
378 | |
|
|
379 | av_extend (av, req->result - 1); |
|
|
380 | |
|
|
381 | for (i = 0; i < req->result; ++i) |
|
|
382 | { |
|
|
383 | if (req->int1 & EIO_READDIR_DENTS) |
|
|
384 | { |
|
|
385 | SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen); |
|
|
386 | |
|
|
387 | if (req->int1 & EIO_READDIR_CUSTOM2) |
|
|
388 | { |
|
|
389 | static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */ |
|
|
390 | AV *avent = newAV (); |
|
|
391 | |
|
|
392 | av_extend (avent, 2); |
|
|
393 | |
|
|
394 | if (!sv_type [ent->type]) |
|
|
395 | { |
|
|
396 | sv_type [ent->type] = newSViv (ent->type); |
|
|
397 | SvREADONLY_on (sv_type [ent->type]); |
|
|
398 | } |
|
|
399 | |
|
|
400 | av_store (avent, 0, namesv); |
|
|
401 | av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type])); |
|
|
402 | av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode)); |
|
|
403 | |
|
|
404 | av_store (av, i, newRV_noinc ((SV *)avent)); |
|
|
405 | } |
|
|
406 | else |
|
|
407 | av_store (av, i, namesv); |
|
|
408 | |
|
|
409 | ++ent; |
|
|
410 | } |
|
|
411 | else |
|
|
412 | { |
|
|
413 | SV *name = newSVpv (names, 0); |
|
|
414 | av_store (av, i, name); |
|
|
415 | names += SvCUR (name) + 1; |
|
|
416 | } |
|
|
417 | } |
|
|
418 | |
|
|
419 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
420 | } |
|
|
421 | |
|
|
422 | PUSHs (rv); |
|
|
423 | |
|
|
424 | if (req->int1 & EIO_READDIR_CUSTOM1) |
|
|
425 | XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2)))); |
|
|
426 | } |
|
|
427 | break; |
|
|
428 | |
|
|
429 | case EIO_OPEN: |
|
|
430 | { |
|
|
431 | /* convert fd to fh */ |
|
|
432 | SV *fh = &PL_sv_undef; |
|
|
433 | |
|
|
434 | if (req->result >= 0) |
|
|
435 | { |
|
|
436 | GV *gv = (GV *)sv_newmortal (); |
|
|
437 | int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); |
|
|
438 | char sym [64]; |
|
|
439 | int symlen; |
|
|
440 | |
|
|
441 | symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result); |
|
|
442 | gv_init (gv, aio_stash, sym, symlen, 0); |
|
|
443 | |
|
|
444 | symlen = snprintf ( |
|
|
445 | sym, |
|
|
446 | sizeof (sym), |
|
|
447 | "%s&=%d", |
|
|
448 | flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", |
|
|
449 | (int)req->result |
|
|
450 | ); |
|
|
451 | |
|
|
452 | if (do_open (gv, sym, symlen, 0, 0, 0, 0)) |
|
|
453 | fh = (SV *)gv; |
|
|
454 | } |
|
|
455 | |
|
|
456 | PUSHs (fh); |
|
|
457 | } |
|
|
458 | break; |
|
|
459 | |
|
|
460 | case EIO_STATVFS: |
|
|
461 | case EIO_FSTATVFS: |
|
|
462 | { |
|
|
463 | SV *rv = &PL_sv_undef; |
|
|
464 | |
|
|
465 | if (req->result >= 0) |
|
|
466 | { |
|
|
467 | EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req); |
|
|
468 | HV *hv = newHV (); |
|
|
469 | |
|
|
470 | rv = sv_2mortal (newRV_noinc ((SV *)hv)); |
|
|
471 | |
|
|
472 | hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0); |
|
|
473 | hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0); |
|
|
474 | hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0); |
|
|
475 | hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0); |
|
|
476 | hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0); |
|
|
477 | hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0); |
|
|
478 | hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0); |
|
|
479 | hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0); |
|
|
480 | hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0); |
|
|
481 | hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0); |
|
|
482 | hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0); |
|
|
483 | } |
|
|
484 | |
|
|
485 | PUSHs (rv); |
|
|
486 | } |
|
|
487 | |
|
|
488 | break; |
|
|
489 | |
|
|
490 | case EIO_GROUP: |
|
|
491 | req->int1 = 2; /* mark group as finished */ |
|
|
492 | |
|
|
493 | if (req->sv1) |
|
|
494 | { |
|
|
495 | int i; |
|
|
496 | AV *av = (AV *)req->sv1; |
|
|
497 | |
|
|
498 | EXTEND (SP, AvFILL (av) + 1); |
|
|
499 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
500 | PUSHs (*av_fetch (av, i, 0)); |
|
|
501 | } |
|
|
502 | break; |
|
|
503 | |
|
|
504 | case EIO_NOP: |
|
|
505 | case EIO_BUSY: |
|
|
506 | break; |
|
|
507 | |
|
|
508 | case EIO_READLINK: |
|
|
509 | if (req->result > 0) |
|
|
510 | PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result))); |
|
|
511 | break; |
|
|
512 | |
|
|
513 | case EIO_STAT: |
|
|
514 | case EIO_LSTAT: |
|
|
515 | case EIO_FSTAT: |
|
|
516 | PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
517 | PL_laststatval = req->result; |
|
|
518 | PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); |
|
|
519 | PUSHs (sv_result); |
|
|
520 | break; |
|
|
521 | |
|
|
522 | case EIO_READ: |
|
|
523 | { |
|
|
524 | SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); |
|
|
525 | *SvEND (req->sv2) = 0; |
|
|
526 | SvPOK_only (req->sv2); |
|
|
527 | SvSETMAGIC (req->sv2); |
|
|
528 | PUSHs (sv_result); |
|
|
529 | } |
|
|
530 | break; |
|
|
531 | |
|
|
532 | case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */ |
|
|
533 | if (req->result > 0) |
|
|
534 | SvIV_set (sv_result, 0); |
|
|
535 | /* FALLTHROUGH */ |
|
|
536 | |
|
|
537 | default: |
|
|
538 | PUSHs (sv_result); |
|
|
539 | break; |
|
|
540 | } |
|
|
541 | |
|
|
542 | errno = req->errorno; |
|
|
543 | |
|
|
544 | PUTBACK; |
|
|
545 | call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); |
|
|
546 | SPAGAIN; |
|
|
547 | |
|
|
548 | if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache)) |
|
|
549 | SvREFCNT_dec (sv_result); |
|
|
550 | else |
|
|
551 | sv_result_cache = sv_result; |
|
|
552 | |
|
|
553 | FREETMPS; |
|
|
554 | LEAVE; |
|
|
555 | |
|
|
556 | PUTBACK; |
503 | } |
557 | } |
504 | while (type != REQ_QUIT); |
558 | |
|
|
559 | return !!SvTRUE (ERRSV); |
|
|
560 | } |
|
|
561 | |
|
|
562 | static void req_destroy (aio_req req) |
|
|
563 | { |
|
|
564 | if (req->self) |
|
|
565 | { |
|
|
566 | sv_unmagic (req->self, PERL_MAGIC_ext); |
|
|
567 | SvREFCNT_dec (req->self); |
|
|
568 | } |
|
|
569 | |
|
|
570 | SvREFCNT_dec (req->sv1); |
|
|
571 | SvREFCNT_dec (req->sv2); |
|
|
572 | SvREFCNT_dec (req->callback); |
|
|
573 | |
|
|
574 | Safefree (req); |
|
|
575 | } |
|
|
576 | |
|
|
577 | static void req_cancel_subs (aio_req grp) |
|
|
578 | { |
|
|
579 | aio_req sub; |
|
|
580 | |
|
|
581 | if (grp->type != EIO_GROUP) |
|
|
582 | return; |
|
|
583 | |
|
|
584 | SvREFCNT_dec (grp->sv2); |
|
|
585 | grp->sv2 = 0; |
|
|
586 | |
|
|
587 | eio_grp_cancel (grp); |
|
|
588 | } |
|
|
589 | |
|
|
590 | static void |
|
|
591 | create_respipe (void) |
|
|
592 | { |
|
|
593 | if (s_epipe_renew (&respipe)) |
|
|
594 | croak ("IO::AIO: unable to initialize result pipe"); |
|
|
595 | } |
|
|
596 | |
|
|
597 | static void poll_wait (void) |
|
|
598 | { |
|
|
599 | while (eio_nreqs ()) |
|
|
600 | { |
|
|
601 | int size; |
|
|
602 | |
|
|
603 | X_LOCK (reslock); |
|
|
604 | size = res_queue.size; |
|
|
605 | X_UNLOCK (reslock); |
|
|
606 | |
|
|
607 | if (size) |
|
|
608 | return; |
|
|
609 | |
|
|
610 | etp_maybe_start_thread (); |
|
|
611 | |
|
|
612 | s_epipe_wait (&respipe); |
|
|
613 | } |
|
|
614 | } |
|
|
615 | |
|
|
616 | static int poll_cb (void) |
|
|
617 | { |
|
|
618 | for (;;) |
|
|
619 | { |
|
|
620 | int res = eio_poll (); |
|
|
621 | |
|
|
622 | if (res > 0) |
|
|
623 | croak (0); |
|
|
624 | |
|
|
625 | if (!max_outstanding || max_outstanding > eio_nreqs ()) |
|
|
626 | return res; |
|
|
627 | |
|
|
628 | poll_wait (); |
|
|
629 | } |
|
|
630 | } |
|
|
631 | |
|
|
632 | static void atfork_child (void) |
|
|
633 | { |
|
|
634 | create_respipe (); |
|
|
635 | } |
|
|
636 | |
|
|
637 | /*****************************************************************************/ |
|
|
638 | |
|
|
639 | #if !_POSIX_MAPPED_FILES |
|
|
640 | # define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1) |
|
|
641 | # define munmap(addr,length) (errno = ENOSYS, -1) |
|
|
642 | # define mprotect(addr,len,prot) (errno = ENOSYS, -1) |
|
|
643 | # define PROT_NONE 0 |
|
|
644 | # define PROT_WRITE 0 |
|
|
645 | # define MAP_PRIVATE 0 |
|
|
646 | # define MAP_SHARED 0 |
|
|
647 | # define MAP_FIXED 0 |
|
|
648 | #endif |
|
|
649 | |
|
|
650 | #define MMAP_MAGIC PERL_MAGIC_ext |
|
|
651 | |
|
|
652 | static int |
|
|
653 | mmap_free (pTHX_ SV *sv, MAGIC *mg) |
|
|
654 | { |
|
|
655 | int old_errno = errno; |
|
|
656 | munmap (mg->mg_ptr, (size_t)mg->mg_obj); |
|
|
657 | errno = old_errno; |
|
|
658 | |
|
|
659 | mg->mg_obj = 0; /* just in case */ |
|
|
660 | |
|
|
661 | SvREADONLY_off (sv); |
|
|
662 | |
|
|
663 | if (SvPVX (sv) != mg->mg_ptr) |
|
|
664 | croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected"); |
|
|
665 | |
|
|
666 | SvCUR_set (sv, 0); |
|
|
667 | SvPVX (sv) = 0; |
|
|
668 | SvOK_off (sv); |
505 | |
669 | |
506 | return 0; |
670 | return 0; |
507 | } |
671 | } |
508 | |
672 | |
|
|
673 | static MGVTBL mmap_vtbl = { |
|
|
674 | 0, 0, 0, 0, mmap_free |
|
|
675 | }; |
|
|
676 | |
|
|
677 | /*****************************************************************************/ |
|
|
678 | |
|
|
679 | static SV * |
|
|
680 | get_cb (SV *cb_sv) |
|
|
681 | { |
|
|
682 | SvGETMAGIC (cb_sv); |
|
|
683 | return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0; |
|
|
684 | } |
|
|
685 | |
509 | #define dREQ \ |
686 | #define dREQ \ |
|
|
687 | SV *cb_cv; \ |
510 | aio_req req; \ |
688 | aio_req req; \ |
|
|
689 | int req_pri = next_pri; \ |
|
|
690 | next_pri = EIO_PRI_DEFAULT; \ |
511 | \ |
691 | \ |
512 | if (SvOK (callback) && !SvROK (callback)) \ |
692 | cb_cv = get_cb (callback); \ |
513 | croak ("clalback must be undef or of reference type"); \ |
|
|
514 | \ |
693 | \ |
515 | Newz (0, req, 1, aio_cb); \ |
694 | Newz (0, req, 1, eio_req); \ |
516 | if (!req) \ |
695 | if (!req) \ |
517 | croak ("out of memory during aio_req allocation"); \ |
696 | croak ("out of memory during eio_req allocation"); \ |
518 | \ |
697 | \ |
519 | req->callback = newSVsv (callback); |
698 | req->callback = SvREFCNT_inc (cb_cv); \ |
520 | |
699 | req->pri = req_pri |
|
|
700 | |
|
|
701 | #define REQ_SEND \ |
|
|
702 | PUTBACK; \ |
|
|
703 | req_submit (req); \ |
|
|
704 | SPAGAIN; \ |
|
|
705 | \ |
|
|
706 | if (GIMME_V != G_VOID) \ |
|
|
707 | XPUSHs (req_sv (req, aio_req_stash)); |
|
|
708 | |
521 | MODULE = IO::AIO PACKAGE = IO::AIO |
709 | MODULE = IO::AIO PACKAGE = IO::AIO |
522 | |
710 | |
523 | PROTOTYPES: ENABLE |
711 | PROTOTYPES: ENABLE |
524 | |
712 | |
525 | BOOT: |
713 | BOOT: |
526 | { |
714 | { |
|
|
715 | static const struct { |
|
|
716 | const char *name; |
|
|
717 | IV iv; |
|
|
718 | } *civ, const_iv[] = { |
|
|
719 | # define const_niv(name, value) { # name, (IV) value }, |
|
|
720 | # define const_iv(name) { # name, (IV) name }, |
|
|
721 | # define const_eio(name) { # name, (IV) EIO_ ## name }, |
|
|
722 | const_iv (EXDEV) |
|
|
723 | const_iv (ENOSYS) |
|
|
724 | const_iv (O_RDONLY) |
|
|
725 | const_iv (O_WRONLY) |
|
|
726 | const_iv (O_RDWR) |
|
|
727 | const_iv (O_CREAT) |
|
|
728 | const_iv (O_TRUNC) |
|
|
729 | const_iv (O_EXCL) |
|
|
730 | const_iv (O_APPEND) |
|
|
731 | #ifndef _WIN32 |
|
|
732 | const_iv (S_IFIFO) |
|
|
733 | #endif |
|
|
734 | const_niv (FADV_NORMAL , POSIX_FADV_NORMAL) |
|
|
735 | const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) |
|
|
736 | const_niv (FADV_RANDOM , POSIX_FADV_RANDOM) |
|
|
737 | const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE) |
|
|
738 | const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED) |
|
|
739 | const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED) |
|
|
740 | |
|
|
741 | const_niv (MADV_NORMAL , POSIX_MADV_NORMAL) |
|
|
742 | const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL) |
|
|
743 | const_niv (MADV_RANDOM , POSIX_MADV_RANDOM) |
|
|
744 | const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED) |
|
|
745 | const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED) |
|
|
746 | |
|
|
747 | const_iv (ST_RDONLY) |
|
|
748 | const_iv (ST_NOSUID) |
|
|
749 | const_iv (ST_NODEV) |
|
|
750 | const_iv (ST_NOEXEC) |
|
|
751 | const_iv (ST_SYNCHRONOUS) |
|
|
752 | const_iv (ST_MANDLOCK) |
|
|
753 | const_iv (ST_WRITE) |
|
|
754 | const_iv (ST_APPEND) |
|
|
755 | const_iv (ST_IMMUTABLE) |
|
|
756 | const_iv (ST_NOATIME) |
|
|
757 | const_iv (ST_NODIRATIME) |
|
|
758 | const_iv (ST_RELATIME) |
|
|
759 | |
|
|
760 | const_iv (PROT_NONE) |
|
|
761 | const_iv (PROT_EXEC) |
|
|
762 | const_iv (PROT_READ) |
|
|
763 | const_iv (PROT_WRITE) |
|
|
764 | |
|
|
765 | /*const_iv (MAP_FIXED)*/ |
|
|
766 | const_iv (MAP_PRIVATE) |
|
|
767 | const_iv (MAP_SHARED) |
|
|
768 | const_iv (MAP_ANONYMOUS) |
|
|
769 | |
|
|
770 | /* linuxish */ |
|
|
771 | const_iv (MAP_HUGETLB) |
|
|
772 | const_iv (MAP_LOCKED) |
|
|
773 | const_iv (MAP_NORESERVE) |
|
|
774 | const_iv (MAP_POPULATE) |
|
|
775 | const_iv (MAP_NONBLOCK) |
|
|
776 | |
|
|
777 | const_eio (MCL_FUTURE) |
|
|
778 | const_eio (MCL_CURRENT) |
|
|
779 | |
|
|
780 | const_eio (MS_ASYNC) |
|
|
781 | const_eio (MS_INVALIDATE) |
|
|
782 | const_eio (MS_SYNC) |
|
|
783 | |
|
|
784 | const_eio (MT_MODIFY) |
|
|
785 | |
|
|
786 | const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) |
|
|
787 | const_eio (SYNC_FILE_RANGE_WRITE) |
|
|
788 | const_eio (SYNC_FILE_RANGE_WAIT_AFTER) |
|
|
789 | |
|
|
790 | const_eio (READDIR_DENTS) |
|
|
791 | const_eio (READDIR_DIRS_FIRST) |
|
|
792 | const_eio (READDIR_STAT_ORDER) |
|
|
793 | const_eio (READDIR_FOUND_UNKNOWN) |
|
|
794 | |
|
|
795 | const_eio (DT_UNKNOWN) |
|
|
796 | const_eio (DT_FIFO) |
|
|
797 | const_eio (DT_CHR) |
|
|
798 | const_eio (DT_DIR) |
|
|
799 | const_eio (DT_BLK) |
|
|
800 | const_eio (DT_REG) |
|
|
801 | const_eio (DT_LNK) |
|
|
802 | const_eio (DT_SOCK) |
|
|
803 | const_eio (DT_WHT) |
|
|
804 | }; |
|
|
805 | |
|
|
806 | aio_stash = gv_stashpv ("IO::AIO" , 1); |
|
|
807 | aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1); |
|
|
808 | aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1); |
|
|
809 | |
|
|
810 | for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) |
|
|
811 | newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv)); |
|
|
812 | |
|
|
813 | newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE)); |
|
|
814 | |
527 | create_pipe (); |
815 | create_respipe (); |
528 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
|
|
529 | } |
|
|
530 | |
816 | |
|
|
817 | if (eio_init (want_poll, done_poll) < 0) |
|
|
818 | croak ("IO::AIO: unable to initialise eio library"); |
|
|
819 | |
|
|
820 | /* atfork child called in fifo order, so before eio's handler */ |
|
|
821 | X_THREAD_ATFORK (0, 0, atfork_child); |
|
|
822 | } |
|
|
823 | |
531 | void |
824 | void |
532 | min_parallel(nthreads) |
825 | max_poll_reqs (int nreqs) |
533 | int nthreads |
|
|
534 | PROTOTYPE: $ |
826 | PROTOTYPE: $ |
|
|
827 | CODE: |
|
|
828 | eio_set_max_poll_reqs (nreqs); |
535 | |
829 | |
536 | void |
830 | void |
537 | max_parallel(nthreads) |
831 | max_poll_time (double nseconds) |
538 | int nthreads |
|
|
539 | PROTOTYPE: $ |
832 | PROTOTYPE: $ |
540 | |
|
|
541 | int |
|
|
542 | max_outstanding(nreqs) |
|
|
543 | int nreqs |
|
|
544 | PROTOTYPE: $ |
|
|
545 | CODE: |
833 | CODE: |
546 | RETVAL = max_outstanding; |
834 | eio_set_max_poll_time (nseconds); |
|
|
835 | |
|
|
836 | void |
|
|
837 | min_parallel (int nthreads) |
|
|
838 | PROTOTYPE: $ |
|
|
839 | CODE: |
|
|
840 | eio_set_min_parallel (nthreads); |
|
|
841 | |
|
|
842 | void |
|
|
843 | max_parallel (int nthreads) |
|
|
844 | PROTOTYPE: $ |
|
|
845 | CODE: |
|
|
846 | eio_set_max_parallel (nthreads); |
|
|
847 | |
|
|
848 | void |
|
|
849 | max_idle (int nthreads) |
|
|
850 | PROTOTYPE: $ |
|
|
851 | CODE: |
|
|
852 | eio_set_max_idle (nthreads); |
|
|
853 | |
|
|
854 | void |
|
|
855 | max_outstanding (int maxreqs) |
|
|
856 | PROTOTYPE: $ |
|
|
857 | CODE: |
547 | max_outstanding = nreqs; |
858 | max_outstanding = maxreqs; |
548 | |
859 | |
549 | void |
860 | void |
550 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
861 | aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) |
551 | SV * pathname |
|
|
552 | int flags |
|
|
553 | int mode |
|
|
554 | SV * callback |
|
|
555 | PROTOTYPE: $$$;$ |
|
|
556 | CODE: |
862 | PPCODE: |
557 | { |
863 | { |
558 | dREQ; |
864 | dREQ; |
559 | |
865 | |
560 | req->type = REQ_OPEN; |
866 | req->type = EIO_OPEN; |
561 | req->data = newSVsv (pathname); |
867 | req->sv1 = newSVsv (pathname); |
562 | req->dataptr = SvPVbyte_nolen (req->data); |
868 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
563 | req->fd = flags; |
869 | req->int1 = flags; |
564 | req->mode = mode; |
870 | req->int2 = mode; |
565 | |
871 | |
566 | send_req (req); |
872 | REQ_SEND; |
567 | } |
873 | } |
568 | |
874 | |
569 | void |
875 | void |
570 | aio_close(fh,callback=&PL_sv_undef) |
876 | aio_fsync (SV *fh, SV *callback=&PL_sv_undef) |
571 | SV * fh |
|
|
572 | SV * callback |
|
|
573 | PROTOTYPE: $;$ |
|
|
574 | ALIAS: |
877 | ALIAS: |
575 | aio_close = REQ_CLOSE |
|
|
576 | aio_fsync = REQ_FSYNC |
878 | aio_fsync = EIO_FSYNC |
577 | aio_fdatasync = REQ_FDATASYNC |
879 | aio_fdatasync = EIO_FDATASYNC |
578 | CODE: |
880 | PPCODE: |
579 | { |
881 | { |
|
|
882 | int fd = s_fileno_croak (fh, 0); |
580 | dREQ; |
883 | dREQ; |
581 | |
884 | |
582 | req->type = ix; |
885 | req->type = ix; |
583 | req->fh = newSVsv (fh); |
886 | req->sv1 = newSVsv (fh); |
584 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
887 | req->int1 = fd; |
585 | |
888 | |
586 | send_req (req); |
889 | REQ_SEND (req); |
587 | } |
890 | } |
588 | |
891 | |
589 | void |
892 | void |
|
|
893 | aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) |
|
|
894 | PPCODE: |
|
|
895 | { |
|
|
896 | int fd = s_fileno_croak (fh, 0); |
|
|
897 | dREQ; |
|
|
898 | |
|
|
899 | req->type = EIO_SYNC_FILE_RANGE; |
|
|
900 | req->sv1 = newSVsv (fh); |
|
|
901 | req->int1 = fd; |
|
|
902 | req->offs = offset; |
|
|
903 | req->size = nbytes; |
|
|
904 | req->int2 = flags; |
|
|
905 | |
|
|
906 | REQ_SEND (req); |
|
|
907 | } |
|
|
908 | |
|
|
909 | void |
|
|
910 | aio_close (SV *fh, SV *callback=&PL_sv_undef) |
|
|
911 | PPCODE: |
|
|
912 | { |
|
|
913 | static int close_pipe = -1; /* dummy fd to close fds via dup2 */ |
|
|
914 | int fd = s_fileno_croak (fh, 0); |
|
|
915 | dREQ; |
|
|
916 | |
|
|
917 | if (close_pipe < 0) |
|
|
918 | { |
|
|
919 | int pipefd [2]; |
|
|
920 | |
|
|
921 | if (pipe (pipefd) < 0 |
|
|
922 | || close (pipefd [1]) < 0 |
|
|
923 | || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0) |
|
|
924 | abort (); /*D*/ |
|
|
925 | |
|
|
926 | close_pipe = pipefd [0]; |
|
|
927 | } |
|
|
928 | |
|
|
929 | req->type = EIO_DUP2; |
|
|
930 | req->int1 = close_pipe; |
|
|
931 | req->sv2 = newSVsv (fh); |
|
|
932 | req->int2 = fd; |
|
|
933 | |
|
|
934 | REQ_SEND (req); |
|
|
935 | } |
|
|
936 | |
|
|
937 | void |
590 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
938 | aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) |
591 | SV * fh |
|
|
592 | UV offset |
|
|
593 | IV length |
|
|
594 | SV * data |
|
|
595 | IV dataoffset |
|
|
596 | SV * callback |
|
|
597 | ALIAS: |
939 | ALIAS: |
598 | aio_read = REQ_READ |
940 | aio_read = EIO_READ |
599 | aio_write = REQ_WRITE |
941 | aio_write = EIO_WRITE |
600 | PROTOTYPE: $$$$$;$ |
|
|
601 | CODE: |
942 | PPCODE: |
602 | { |
943 | { |
603 | aio_req req; |
|
|
604 | STRLEN svlen; |
944 | STRLEN svlen; |
|
|
945 | int fd = s_fileno_croak (fh, ix == EIO_WRITE); |
605 | char *svptr = SvPVbyte (data, svlen); |
946 | char *svptr = SvPVbyte (data, svlen); |
606 | |
947 | UV len = SvUV (length); |
607 | SvUPGRADE (data, SVt_PV); |
|
|
608 | SvPOK_on (data); |
|
|
609 | |
948 | |
610 | if (dataoffset < 0) |
949 | if (dataoffset < 0) |
611 | dataoffset += svlen; |
950 | dataoffset += svlen; |
612 | |
951 | |
613 | if (dataoffset < 0 || dataoffset > svlen) |
952 | if (dataoffset < 0 || dataoffset > svlen) |
614 | croak ("data offset outside of string"); |
953 | croak ("dataoffset outside of data scalar"); |
615 | |
954 | |
616 | if (ix == REQ_WRITE) |
955 | if (ix == EIO_WRITE) |
617 | { |
956 | { |
618 | /* write: check length and adjust. */ |
957 | /* write: check length and adjust. */ |
619 | if (length < 0 || length + dataoffset > svlen) |
958 | if (!SvOK (length) || len + dataoffset > svlen) |
620 | length = svlen - dataoffset; |
959 | len = svlen - dataoffset; |
621 | } |
960 | } |
622 | else |
961 | else |
623 | { |
962 | { |
624 | /* read: grow scalar as necessary */ |
963 | /* read: check type and grow scalar as necessary */ |
|
|
964 | SvUPGRADE (data, SVt_PV); |
625 | svptr = SvGROW (data, length + dataoffset); |
965 | svptr = SvGROW (data, len + dataoffset + 1); |
626 | } |
966 | } |
627 | |
|
|
628 | if (length < 0) |
|
|
629 | croak ("length must not be negative"); |
|
|
630 | |
967 | |
631 | { |
968 | { |
632 | dREQ; |
969 | dREQ; |
633 | |
970 | |
634 | req->type = ix; |
971 | req->type = ix; |
635 | req->fh = newSVsv (fh); |
972 | req->sv1 = newSVsv (fh); |
636 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
973 | req->int1 = fd; |
637 | : IoOFP (sv_2io (fh))); |
974 | req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
638 | req->offset = offset; |
975 | req->size = len; |
639 | req->length = length; |
|
|
640 | req->data = SvREFCNT_inc (data); |
976 | req->sv2 = SvREFCNT_inc (data); |
641 | req->dataptr = (char *)svptr + dataoffset; |
977 | req->ptr2 = (char *)svptr + dataoffset; |
|
|
978 | req->stroffset = dataoffset; |
642 | |
979 | |
643 | if (!SvREADONLY (data)) |
980 | if (!SvREADONLY (data)) |
644 | { |
981 | { |
645 | SvREADONLY_on (data); |
982 | SvREADONLY_on (data); |
646 | req->data2ptr = (void *)data; |
983 | req->flags |= FLAG_SV2_RO_OFF; |
647 | } |
984 | } |
648 | |
985 | |
649 | send_req (req); |
986 | REQ_SEND; |
650 | } |
987 | } |
651 | } |
988 | } |
652 | |
989 | |
653 | void |
990 | void |
654 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
991 | aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) |
655 | SV * fh |
|
|
656 | UV offset |
|
|
657 | IV length |
|
|
658 | SV * callback |
|
|
659 | PROTOTYPE: $$$;$ |
|
|
660 | CODE: |
992 | PPCODE: |
661 | { |
993 | { |
|
|
994 | SV *data; |
|
|
995 | dREQ; |
|
|
996 | |
|
|
997 | req->type = EIO_READLINK; |
|
|
998 | req->sv1 = newSVsv (path); |
|
|
999 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1000 | |
|
|
1001 | REQ_SEND; |
|
|
1002 | } |
|
|
1003 | |
|
|
1004 | void |
|
|
1005 | aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef) |
|
|
1006 | PPCODE: |
|
|
1007 | { |
|
|
1008 | int ifd = s_fileno_croak (in_fh , 0); |
|
|
1009 | int ofd = s_fileno_croak (out_fh, 1); |
662 | dREQ; |
1010 | dREQ; |
663 | |
1011 | |
|
|
1012 | req->type = EIO_SENDFILE; |
|
|
1013 | req->sv1 = newSVsv (out_fh); |
|
|
1014 | req->int1 = ofd; |
|
|
1015 | req->sv2 = newSVsv (in_fh); |
|
|
1016 | req->int2 = ifd; |
|
|
1017 | req->offs = in_offset; |
|
|
1018 | req->size = length; |
|
|
1019 | |
|
|
1020 | REQ_SEND; |
|
|
1021 | } |
|
|
1022 | |
|
|
1023 | void |
|
|
1024 | aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) |
|
|
1025 | PPCODE: |
|
|
1026 | { |
|
|
1027 | int fd = s_fileno_croak (fh, 0); |
|
|
1028 | dREQ; |
|
|
1029 | |
664 | req->type = REQ_READAHEAD; |
1030 | req->type = EIO_READAHEAD; |
665 | req->fh = newSVsv (fh); |
1031 | req->sv1 = newSVsv (fh); |
666 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1032 | req->int1 = fd; |
667 | req->offset = offset; |
1033 | req->offs = offset; |
668 | req->length = length; |
1034 | req->size = length; |
669 | |
1035 | |
670 | send_req (req); |
1036 | REQ_SEND; |
671 | } |
1037 | } |
672 | |
1038 | |
673 | void |
1039 | void |
674 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
1040 | aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) |
675 | SV * fh_or_path |
|
|
676 | SV * callback |
|
|
677 | ALIAS: |
1041 | ALIAS: |
678 | aio_stat = REQ_STAT |
1042 | aio_stat = EIO_STAT |
679 | aio_lstat = REQ_LSTAT |
1043 | aio_lstat = EIO_LSTAT |
|
|
1044 | aio_statvfs = EIO_STATVFS |
680 | CODE: |
1045 | PPCODE: |
681 | { |
1046 | { |
682 | dREQ; |
1047 | dREQ; |
683 | |
1048 | |
684 | New (0, req->statdata, 1, Stat_t); |
1049 | req->sv1 = newSVsv (fh_or_path); |
685 | if (!req->statdata) |
|
|
686 | { |
|
|
687 | free_req (req); |
|
|
688 | croak ("out of memory during aio_req->statdata allocation"); |
|
|
689 | } |
|
|
690 | |
1050 | |
691 | if (SvPOK (fh_or_path)) |
1051 | if (SvPOK (req->sv1)) |
692 | { |
1052 | { |
693 | req->type = ix; |
1053 | req->type = ix; |
694 | req->data = newSVsv (fh_or_path); |
|
|
695 | req->dataptr = SvPVbyte_nolen (req->data); |
1054 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
696 | } |
1055 | } |
697 | else |
1056 | else |
698 | { |
1057 | { |
699 | req->type = REQ_FSTAT; |
1058 | req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT; |
700 | req->fh = newSVsv (fh_or_path); |
|
|
701 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1059 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
702 | } |
1060 | } |
703 | |
1061 | |
704 | send_req (req); |
1062 | REQ_SEND; |
705 | } |
1063 | } |
706 | |
1064 | |
707 | void |
1065 | void |
|
|
1066 | aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) |
|
|
1067 | PPCODE: |
|
|
1068 | { |
|
|
1069 | dREQ; |
|
|
1070 | |
|
|
1071 | req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; |
|
|
1072 | req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; |
|
|
1073 | req->sv1 = newSVsv (fh_or_path); |
|
|
1074 | |
|
|
1075 | if (SvPOK (req->sv1)) |
|
|
1076 | { |
|
|
1077 | req->type = EIO_UTIME; |
|
|
1078 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1079 | } |
|
|
1080 | else |
|
|
1081 | { |
|
|
1082 | req->type = EIO_FUTIME; |
|
|
1083 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1084 | } |
|
|
1085 | |
|
|
1086 | REQ_SEND; |
|
|
1087 | } |
|
|
1088 | |
|
|
1089 | void |
|
|
1090 | aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) |
|
|
1091 | PPCODE: |
|
|
1092 | { |
|
|
1093 | dREQ; |
|
|
1094 | |
|
|
1095 | req->sv1 = newSVsv (fh_or_path); |
|
|
1096 | req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
|
|
1097 | |
|
|
1098 | if (SvPOK (req->sv1)) |
|
|
1099 | { |
|
|
1100 | req->type = EIO_TRUNCATE; |
|
|
1101 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1102 | } |
|
|
1103 | else |
|
|
1104 | { |
|
|
1105 | req->type = EIO_FTRUNCATE; |
|
|
1106 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1107 | } |
|
|
1108 | |
|
|
1109 | REQ_SEND; |
|
|
1110 | } |
|
|
1111 | |
|
|
1112 | void |
|
|
1113 | aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) |
|
|
1114 | ALIAS: |
|
|
1115 | aio_chmod = EIO_CHMOD |
|
|
1116 | aio_mkdir = EIO_MKDIR |
|
|
1117 | PPCODE: |
|
|
1118 | { |
|
|
1119 | dREQ; |
|
|
1120 | |
|
|
1121 | req->int2 = mode; |
|
|
1122 | req->sv1 = newSVsv (fh_or_path); |
|
|
1123 | |
|
|
1124 | if (SvPOK (req->sv1)) |
|
|
1125 | { |
|
|
1126 | req->type = ix; |
|
|
1127 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1128 | } |
|
|
1129 | else |
|
|
1130 | { |
|
|
1131 | req->type = EIO_FCHMOD; |
|
|
1132 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1133 | } |
|
|
1134 | |
|
|
1135 | REQ_SEND; |
|
|
1136 | } |
|
|
1137 | |
|
|
1138 | void |
|
|
1139 | aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) |
|
|
1140 | PPCODE: |
|
|
1141 | { |
|
|
1142 | dREQ; |
|
|
1143 | |
|
|
1144 | req->int2 = SvOK (uid) ? SvIV (uid) : -1; |
|
|
1145 | req->int3 = SvOK (gid) ? SvIV (gid) : -1; |
|
|
1146 | req->sv1 = newSVsv (fh_or_path); |
|
|
1147 | |
|
|
1148 | if (SvPOK (req->sv1)) |
|
|
1149 | { |
|
|
1150 | req->type = EIO_CHOWN; |
|
|
1151 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1152 | } |
|
|
1153 | else |
|
|
1154 | { |
|
|
1155 | req->type = EIO_FCHOWN; |
|
|
1156 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1157 | } |
|
|
1158 | |
|
|
1159 | REQ_SEND; |
|
|
1160 | } |
|
|
1161 | |
|
|
1162 | void |
|
|
1163 | aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef) |
|
|
1164 | PPCODE: |
|
|
1165 | { |
|
|
1166 | dREQ; |
|
|
1167 | |
|
|
1168 | req->type = EIO_READDIR; |
|
|
1169 | req->sv1 = newSVsv (pathname); |
|
|
1170 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1171 | req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1; |
|
|
1172 | |
|
|
1173 | if (flags & EIO_READDIR_DENTS) |
|
|
1174 | req->int1 |= EIO_READDIR_CUSTOM2; |
|
|
1175 | |
|
|
1176 | REQ_SEND; |
|
|
1177 | } |
|
|
1178 | |
|
|
1179 | void |
708 | aio_unlink(pathname,callback=&PL_sv_undef) |
1180 | aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) |
709 | SV * pathname |
|
|
710 | SV * callback |
|
|
711 | ALIAS: |
1181 | ALIAS: |
712 | aio_unlink = REQ_UNLINK |
1182 | aio_unlink = EIO_UNLINK |
713 | aio_rmdir = REQ_RMDIR |
1183 | aio_rmdir = EIO_RMDIR |
|
|
1184 | aio_readdir = EIO_READDIR |
714 | CODE: |
1185 | PPCODE: |
715 | { |
1186 | { |
716 | dREQ; |
1187 | dREQ; |
717 | |
1188 | |
718 | req->type = ix; |
1189 | req->type = ix; |
719 | req->data = newSVsv (pathname); |
1190 | req->sv1 = newSVsv (pathname); |
720 | req->dataptr = SvPVbyte_nolen (req->data); |
1191 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
721 | |
|
|
722 | send_req (req); |
|
|
723 | } |
|
|
724 | |
1192 | |
|
|
1193 | REQ_SEND; |
|
|
1194 | } |
|
|
1195 | |
725 | void |
1196 | void |
726 | aio_symlink(oldpath,newpath,callback=&PL_sv_undef) |
1197 | aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) |
727 | SV * oldpath |
1198 | ALIAS: |
728 | SV * newpath |
1199 | aio_link = EIO_LINK |
729 | SV * callback |
1200 | aio_symlink = EIO_SYMLINK |
|
|
1201 | aio_rename = EIO_RENAME |
730 | CODE: |
1202 | PPCODE: |
731 | { |
1203 | { |
732 | dREQ; |
1204 | dREQ; |
733 | |
1205 | |
734 | req->type = REQ_SYMLINK; |
1206 | req->type = ix; |
735 | req->fh = newSVsv (oldpath); |
1207 | req->sv1 = newSVsv (oldpath); |
736 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1208 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
737 | req->data = newSVsv (newpath); |
1209 | req->sv2 = newSVsv (newpath); |
738 | req->dataptr = SvPVbyte_nolen (req->data); |
1210 | req->ptr2 = SvPVbyte_nolen (req->sv2); |
739 | |
1211 | |
740 | send_req (req); |
1212 | REQ_SEND; |
741 | } |
1213 | } |
742 | |
1214 | |
743 | void |
1215 | void |
744 | flush() |
1216 | aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) |
745 | PROTOTYPE: |
1217 | PPCODE: |
|
|
1218 | { |
|
|
1219 | dREQ; |
|
|
1220 | |
|
|
1221 | req->type = EIO_MKNOD; |
|
|
1222 | req->sv1 = newSVsv (pathname); |
|
|
1223 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1224 | req->int2 = (mode_t)mode; |
|
|
1225 | req->offs = dev; |
|
|
1226 | |
|
|
1227 | REQ_SEND; |
|
|
1228 | } |
|
|
1229 | |
|
|
1230 | void |
|
|
1231 | aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef) |
|
|
1232 | ALIAS: |
|
|
1233 | aio_mtouch = EIO_MTOUCH |
|
|
1234 | aio_msync = EIO_MSYNC |
|
|
1235 | PPCODE: |
|
|
1236 | { |
|
|
1237 | STRLEN svlen; |
|
|
1238 | char *svptr = SvPVbyte (data, svlen); |
|
|
1239 | UV len = SvUV (length); |
|
|
1240 | |
|
|
1241 | if (offset < 0) |
|
|
1242 | offset += svlen; |
|
|
1243 | |
|
|
1244 | if (offset < 0 || offset > svlen) |
|
|
1245 | croak ("offset outside of scalar"); |
|
|
1246 | |
|
|
1247 | if (!SvOK (length) || len + offset > svlen) |
|
|
1248 | len = svlen - offset; |
|
|
1249 | |
|
|
1250 | { |
|
|
1251 | dREQ; |
|
|
1252 | |
|
|
1253 | req->type = ix; |
|
|
1254 | req->sv2 = SvREFCNT_inc (data); |
|
|
1255 | req->ptr2 = (char *)svptr + offset; |
|
|
1256 | req->size = len; |
|
|
1257 | req->int1 = flags; |
|
|
1258 | |
|
|
1259 | REQ_SEND; |
|
|
1260 | } |
|
|
1261 | } |
|
|
1262 | |
|
|
1263 | void |
|
|
1264 | aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef) |
|
|
1265 | PPCODE: |
|
|
1266 | { |
|
|
1267 | STRLEN svlen; |
|
|
1268 | char *svptr = SvPVbyte (data, svlen); |
|
|
1269 | UV len = SvUV (length); |
|
|
1270 | |
|
|
1271 | if (offset < 0) |
|
|
1272 | offset += svlen; |
|
|
1273 | |
|
|
1274 | if (offset < 0 || offset > svlen) |
|
|
1275 | croak ("offset outside of scalar"); |
|
|
1276 | |
|
|
1277 | if (!SvOK (length) || len + offset > svlen) |
|
|
1278 | len = svlen - offset; |
|
|
1279 | |
|
|
1280 | { |
|
|
1281 | dREQ; |
|
|
1282 | |
|
|
1283 | req->type = EIO_MLOCK; |
|
|
1284 | req->sv2 = SvREFCNT_inc (data); |
|
|
1285 | req->ptr2 = (char *)svptr + offset; |
|
|
1286 | req->size = len; |
|
|
1287 | |
|
|
1288 | REQ_SEND; |
|
|
1289 | } |
|
|
1290 | } |
|
|
1291 | |
|
|
1292 | void |
|
|
1293 | aio_mlockall (IV flags, SV *callback=&PL_sv_undef) |
|
|
1294 | PPCODE: |
|
|
1295 | { |
|
|
1296 | dREQ; |
|
|
1297 | |
|
|
1298 | req->type = EIO_MLOCKALL; |
|
|
1299 | req->int1 = flags; |
|
|
1300 | |
|
|
1301 | REQ_SEND; |
|
|
1302 | } |
|
|
1303 | |
|
|
1304 | void |
|
|
1305 | aio_busy (double delay, SV *callback=&PL_sv_undef) |
|
|
1306 | PPCODE: |
|
|
1307 | { |
|
|
1308 | dREQ; |
|
|
1309 | |
|
|
1310 | req->type = EIO_BUSY; |
|
|
1311 | req->nv1 = delay < 0. ? 0. : delay; |
|
|
1312 | |
|
|
1313 | REQ_SEND; |
|
|
1314 | } |
|
|
1315 | |
|
|
1316 | void |
|
|
1317 | aio_group (SV *callback=&PL_sv_undef) |
|
|
1318 | PPCODE: |
|
|
1319 | { |
|
|
1320 | dREQ; |
|
|
1321 | |
|
|
1322 | req->type = EIO_GROUP; |
|
|
1323 | |
|
|
1324 | req_submit (req); |
|
|
1325 | XPUSHs (req_sv (req, aio_grp_stash)); |
|
|
1326 | } |
|
|
1327 | |
|
|
1328 | void |
|
|
1329 | aio_nop (SV *callback=&PL_sv_undef) |
|
|
1330 | ALIAS: |
|
|
1331 | aio_nop = EIO_NOP |
|
|
1332 | aio_sync = EIO_SYNC |
|
|
1333 | PPCODE: |
|
|
1334 | { |
|
|
1335 | dREQ; |
|
|
1336 | |
|
|
1337 | req->type = ix; |
|
|
1338 | |
|
|
1339 | REQ_SEND; |
|
|
1340 | } |
|
|
1341 | |
|
|
1342 | int |
|
|
1343 | aioreq_pri (int pri = 0) |
746 | CODE: |
1344 | CODE: |
|
|
1345 | RETVAL = next_pri; |
|
|
1346 | if (items > 0) |
|
|
1347 | { |
|
|
1348 | if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; |
|
|
1349 | if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX; |
|
|
1350 | next_pri = pri; |
|
|
1351 | } |
|
|
1352 | OUTPUT: |
|
|
1353 | RETVAL |
|
|
1354 | |
|
|
1355 | void |
|
|
1356 | aioreq_nice (int nice = 0) |
|
|
1357 | CODE: |
|
|
1358 | nice = next_pri - nice; |
|
|
1359 | if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN; |
|
|
1360 | if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; |
|
|
1361 | next_pri = nice; |
|
|
1362 | |
|
|
1363 | void |
|
|
1364 | flush () |
|
|
1365 | CODE: |
747 | while (nreqs) |
1366 | while (eio_nreqs ()) |
748 | { |
1367 | { |
749 | poll_wait (); |
1368 | poll_wait (); |
750 | poll_cb (); |
1369 | poll_cb (); |
751 | } |
1370 | } |
752 | |
1371 | |
753 | void |
1372 | int |
754 | poll() |
1373 | poll () |
755 | PROTOTYPE: |
|
|
756 | CODE: |
1374 | CODE: |
757 | if (nreqs) |
|
|
758 | { |
|
|
759 | poll_wait (); |
1375 | poll_wait (); |
760 | poll_cb (); |
1376 | RETVAL = poll_cb (); |
761 | } |
|
|
762 | |
|
|
763 | int |
|
|
764 | poll_fileno() |
|
|
765 | PROTOTYPE: |
|
|
766 | CODE: |
|
|
767 | RETVAL = respipe [0]; |
|
|
768 | OUTPUT: |
1377 | OUTPUT: |
769 | RETVAL |
1378 | RETVAL |
770 | |
1379 | |
771 | int |
1380 | int |
|
|
1381 | poll_fileno () |
|
|
1382 | CODE: |
|
|
1383 | RETVAL = s_epipe_fd (&respipe); |
|
|
1384 | OUTPUT: |
|
|
1385 | RETVAL |
|
|
1386 | |
|
|
1387 | int |
772 | poll_cb(...) |
1388 | poll_cb (...) |
773 | PROTOTYPE: |
1389 | PROTOTYPE: |
774 | CODE: |
1390 | CODE: |
775 | RETVAL = poll_cb (); |
1391 | RETVAL = poll_cb (); |
776 | OUTPUT: |
1392 | OUTPUT: |
777 | RETVAL |
1393 | RETVAL |
778 | |
1394 | |
779 | void |
1395 | void |
780 | poll_wait() |
1396 | poll_wait () |
781 | PROTOTYPE: |
|
|
782 | CODE: |
1397 | CODE: |
783 | if (nreqs) |
|
|
784 | poll_wait (); |
1398 | poll_wait (); |
785 | |
1399 | |
786 | int |
1400 | int |
787 | nreqs() |
1401 | nreqs () |
788 | PROTOTYPE: |
|
|
789 | CODE: |
1402 | CODE: |
790 | RETVAL = nreqs; |
1403 | RETVAL = eio_nreqs (); |
791 | OUTPUT: |
1404 | OUTPUT: |
792 | RETVAL |
1405 | RETVAL |
793 | |
1406 | |
|
|
1407 | int |
|
|
1408 | nready () |
|
|
1409 | CODE: |
|
|
1410 | RETVAL = eio_nready (); |
|
|
1411 | OUTPUT: |
|
|
1412 | RETVAL |
|
|
1413 | |
|
|
1414 | int |
|
|
1415 | npending () |
|
|
1416 | CODE: |
|
|
1417 | RETVAL = eio_npending (); |
|
|
1418 | OUTPUT: |
|
|
1419 | RETVAL |
|
|
1420 | |
|
|
1421 | int |
|
|
1422 | nthreads () |
|
|
1423 | CODE: |
|
|
1424 | RETVAL = eio_nthreads (); |
|
|
1425 | OUTPUT: |
|
|
1426 | RETVAL |
|
|
1427 | |
|
|
1428 | int |
|
|
1429 | fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) |
|
|
1430 | CODE: |
|
|
1431 | RETVAL = posix_fadvise (fh, offset, length, advice); |
|
|
1432 | OUTPUT: |
|
|
1433 | RETVAL |
|
|
1434 | |
|
|
1435 | ssize_t |
|
|
1436 | sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) |
|
|
1437 | CODE: |
|
|
1438 | RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); |
|
|
1439 | OUTPUT: |
|
|
1440 | RETVAL |
|
|
1441 | |
|
|
1442 | void |
|
|
1443 | mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) |
|
|
1444 | PPCODE: |
|
|
1445 | sv_unmagic (scalar, MMAP_MAGIC); |
|
|
1446 | { |
|
|
1447 | int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; |
|
|
1448 | void *addr = (void *)mmap (0, length, prot, flags, fd, offset); |
|
|
1449 | if (addr == (void *)-1) |
|
|
1450 | XSRETURN_NO; |
|
|
1451 | |
|
|
1452 | sv_force_normal (scalar); |
|
|
1453 | |
|
|
1454 | /* we store the length in mg_obj, as namlen is I32 :/ */ |
|
|
1455 | sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0) |
|
|
1456 | ->mg_obj = (SV *)length; |
|
|
1457 | |
|
|
1458 | SvUPGRADE (scalar, SVt_PV); /* nop... */ |
|
|
1459 | |
|
|
1460 | if (!(prot & PROT_WRITE)) |
|
|
1461 | SvREADONLY_on (scalar); |
|
|
1462 | |
|
|
1463 | if (SvLEN (scalar)) |
|
|
1464 | Safefree (SvPVX (scalar)); |
|
|
1465 | |
|
|
1466 | SvPVX (scalar) = (char *)addr; |
|
|
1467 | SvCUR_set (scalar, length); |
|
|
1468 | SvLEN_set (scalar, 0); |
|
|
1469 | SvPOK_only (scalar); |
|
|
1470 | |
|
|
1471 | XSRETURN_YES; |
|
|
1472 | } |
|
|
1473 | |
|
|
1474 | void |
|
|
1475 | munmap (SV *scalar) |
|
|
1476 | CODE: |
|
|
1477 | sv_unmagic (scalar, MMAP_MAGIC); |
|
|
1478 | |
|
|
1479 | int |
|
|
1480 | madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot) |
|
|
1481 | ALIAS: |
|
|
1482 | mprotect = 1 |
|
|
1483 | CODE: |
|
|
1484 | { |
|
|
1485 | STRLEN svlen; |
|
|
1486 | void *addr = SvPVbyte (scalar, svlen); |
|
|
1487 | size_t len = SvUV (length); |
|
|
1488 | |
|
|
1489 | if (offset < 0) |
|
|
1490 | offset += svlen; |
|
|
1491 | |
|
|
1492 | if (offset < 0 || offset > svlen) |
|
|
1493 | croak ("offset outside of scalar"); |
|
|
1494 | |
|
|
1495 | if (!SvOK (length) || len + offset > svlen) |
|
|
1496 | len = svlen - offset; |
|
|
1497 | |
|
|
1498 | addr = (void *)(((intptr_t)addr) + offset); |
|
|
1499 | eio_page_align (&addr, &len); |
|
|
1500 | |
|
|
1501 | switch (ix) |
|
|
1502 | { |
|
|
1503 | case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break; |
|
|
1504 | case 1: RETVAL = mprotect (addr, len, advice_or_prot); break; |
|
|
1505 | } |
|
|
1506 | } |
|
|
1507 | OUTPUT: |
|
|
1508 | RETVAL |
|
|
1509 | |
|
|
1510 | int |
|
|
1511 | munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef) |
|
|
1512 | CODE: |
|
|
1513 | { |
|
|
1514 | STRLEN svlen; |
|
|
1515 | void *addr = SvPVbyte (scalar, svlen); |
|
|
1516 | size_t len = SvUV (length); |
|
|
1517 | |
|
|
1518 | if (offset < 0) |
|
|
1519 | offset += svlen; |
|
|
1520 | |
|
|
1521 | if (offset < 0 || offset > svlen) |
|
|
1522 | croak ("offset outside of scalar"); |
|
|
1523 | |
|
|
1524 | if (!SvOK (length) || len + offset > svlen) |
|
|
1525 | len = svlen - offset; |
|
|
1526 | |
|
|
1527 | addr = (void *)(((intptr_t)addr) + offset); |
|
|
1528 | eio_page_align (&addr, &len); |
|
|
1529 | #if _POSIX_MEMLOCK_RANGE |
|
|
1530 | RETVAL = munlock (addr, len); |
|
|
1531 | #else |
|
|
1532 | RETVAL = ((errno = ENOSYS), -1); |
|
|
1533 | #endif |
|
|
1534 | } |
|
|
1535 | OUTPUT: |
|
|
1536 | RETVAL |
|
|
1537 | |
|
|
1538 | int |
|
|
1539 | munlockall () |
|
|
1540 | CODE: |
|
|
1541 | #if _POSIX_MEMLOCK |
|
|
1542 | munlockall (); |
|
|
1543 | #else |
|
|
1544 | RETVAL = -1; |
|
|
1545 | errno = ENOSYS; |
|
|
1546 | #endif |
|
|
1547 | OUTPUT: |
|
|
1548 | RETVAL |
|
|
1549 | |
|
|
1550 | void _on_next_submit (SV *cb) |
|
|
1551 | CODE: |
|
|
1552 | SvREFCNT_dec (on_next_submit); |
|
|
1553 | on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; |
|
|
1554 | |
|
|
1555 | PROTOTYPES: DISABLE |
|
|
1556 | |
|
|
1557 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1558 | |
|
|
1559 | void |
|
|
1560 | cancel (aio_req_ornot req) |
|
|
1561 | CODE: |
|
|
1562 | eio_cancel (req); |
|
|
1563 | |
|
|
1564 | void |
|
|
1565 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1566 | PPCODE: |
|
|
1567 | { |
|
|
1568 | if (GIMME_V != G_VOID) |
|
|
1569 | XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef); |
|
|
1570 | |
|
|
1571 | if (items > 1) |
|
|
1572 | { |
|
|
1573 | SV *cb_cv =get_cb (callback); |
|
|
1574 | |
|
|
1575 | SvREFCNT_dec (req->callback); |
|
|
1576 | req->callback = SvREFCNT_inc (cb_cv); |
|
|
1577 | } |
|
|
1578 | } |
|
|
1579 | |
|
|
1580 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1581 | |
|
|
1582 | void |
|
|
1583 | add (aio_req grp, ...) |
|
|
1584 | PPCODE: |
|
|
1585 | { |
|
|
1586 | int i; |
|
|
1587 | |
|
|
1588 | if (grp->int1 == 2) |
|
|
1589 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1590 | |
|
|
1591 | for (i = 1; i < items; ++i ) |
|
|
1592 | { |
|
|
1593 | aio_req req; |
|
|
1594 | |
|
|
1595 | if (GIMME_V != G_VOID) |
|
|
1596 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1597 | |
|
|
1598 | req = SvAIO_REQ (ST (i)); |
|
|
1599 | |
|
|
1600 | if (req) |
|
|
1601 | eio_grp_add (grp, req); |
|
|
1602 | } |
|
|
1603 | } |
|
|
1604 | |
|
|
1605 | void |
|
|
1606 | cancel_subs (aio_req_ornot req) |
|
|
1607 | CODE: |
|
|
1608 | req_cancel_subs (req); |
|
|
1609 | |
|
|
1610 | void |
|
|
1611 | result (aio_req grp, ...) |
|
|
1612 | CODE: |
|
|
1613 | { |
|
|
1614 | int i; |
|
|
1615 | AV *av; |
|
|
1616 | |
|
|
1617 | grp->errorno = errno; |
|
|
1618 | |
|
|
1619 | av = newAV (); |
|
|
1620 | av_extend (av, items - 1); |
|
|
1621 | |
|
|
1622 | for (i = 1; i < items; ++i ) |
|
|
1623 | av_push (av, newSVsv (ST (i))); |
|
|
1624 | |
|
|
1625 | SvREFCNT_dec (grp->sv1); |
|
|
1626 | grp->sv1 = (SV *)av; |
|
|
1627 | } |
|
|
1628 | |
|
|
1629 | void |
|
|
1630 | errno (aio_req grp, int errorno = errno) |
|
|
1631 | CODE: |
|
|
1632 | grp->errorno = errorno; |
|
|
1633 | |
|
|
1634 | void |
|
|
1635 | limit (aio_req grp, int limit) |
|
|
1636 | CODE: |
|
|
1637 | eio_grp_limit (grp, limit); |
|
|
1638 | |
|
|
1639 | void |
|
|
1640 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1641 | CODE: |
|
|
1642 | { |
|
|
1643 | SvREFCNT_dec (grp->sv2); |
|
|
1644 | grp->sv2 = newSVsv (callback); |
|
|
1645 | grp->feed = aio_grp_feed; |
|
|
1646 | |
|
|
1647 | if (grp->int2 <= 0) |
|
|
1648 | grp->int2 = 2; |
|
|
1649 | |
|
|
1650 | eio_grp_limit (grp, grp->int2); |
|
|
1651 | } |
|
|
1652 | |