1 | #define PERL_NO_GET_CONTEXT |
1 | #define _REENTRANT 1 |
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2 | #include <errno.h> |
2 | |
3 | |
3 | #include "EXTERN.h" |
4 | #include "EXTERN.h" |
4 | #include "perl.h" |
5 | #include "perl.h" |
5 | #include "XSUB.h" |
6 | #include "XSUB.h" |
6 | |
7 | |
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8 | #include "autoconf/config.h" |
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9 | |
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10 | #include <pthread.h> |
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11 | |
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12 | #include <stddef.h> |
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13 | #include <errno.h> |
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14 | #include <sys/time.h> |
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15 | #include <sys/select.h> |
7 | #include <sys/types.h> |
16 | #include <sys/types.h> |
8 | #include <sys/stat.h> |
17 | #include <sys/stat.h> |
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18 | #include <limits.h> |
9 | #include <unistd.h> |
19 | #include <unistd.h> |
10 | #include <fcntl.h> |
20 | #include <fcntl.h> |
11 | #include <signal.h> |
21 | #include <signal.h> |
12 | #include <sched.h> |
22 | #include <sched.h> |
13 | #include <endian.h> |
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14 | |
23 | |
15 | #include <pthread.h> |
24 | #if HAVE_SENDFILE |
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25 | # if __linux |
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26 | # include <sys/sendfile.h> |
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27 | # elif __freebsd |
16 | #include <sys/syscall.h> |
28 | # include <sys/socket.h> |
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29 | # include <sys/uio.h> |
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30 | # elif __hpux |
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31 | # include <sys/socket.h> |
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32 | # elif __solaris /* not yet */ |
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33 | # include <sys/sendfile.h> |
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34 | # else |
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35 | # error sendfile support requested but not available |
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36 | # endif |
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37 | #endif |
17 | |
38 | |
18 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
39 | /* used for struct dirent, AIX doesn't provide it */ |
19 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
40 | #ifndef NAME_MAX |
20 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
41 | # define NAME_MAX 4096 |
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42 | #endif |
21 | |
43 | |
22 | #if __i386 || __amd64 |
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23 | # define STACKSIZE ( 256 * sizeof (long)) |
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24 | #elif __ia64 |
44 | #if __ia64 |
25 | # define STACKSIZE (8192 * sizeof (long)) |
45 | # define STACKSIZE 65536 |
26 | #else |
46 | #else |
27 | # define STACKSIZE ( 512 * sizeof (long)) |
47 | # define STACKSIZE 8192 |
28 | #endif |
48 | #endif |
29 | |
49 | |
30 | enum { |
50 | enum { |
31 | REQ_QUIT, |
51 | REQ_QUIT, |
32 | REQ_OPEN, REQ_CLOSE, |
52 | REQ_OPEN, REQ_CLOSE, |
33 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
53 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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54 | REQ_SENDFILE, |
34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
55 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
35 | REQ_FSYNC, REQ_FDATASYNC, |
56 | REQ_FSYNC, REQ_FDATASYNC, |
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57 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
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58 | REQ_READDIR, |
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59 | REQ_LINK, REQ_SYMLINK, |
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60 | REQ_SLEEP, |
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61 | REQ_GROUP, |
36 | }; |
62 | }; |
37 | |
63 | |
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64 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
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65 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
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66 | |
38 | typedef struct aio_cb { |
67 | typedef struct aio_cb |
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68 | { |
39 | struct aio_cb *volatile next; |
69 | struct aio_cb *volatile next; |
40 | |
70 | |
41 | int type; |
71 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
42 | |
72 | |
43 | int fd; |
73 | SV *self; /* the perl counterpart of this request, if any */ |
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74 | |
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75 | SV *data, *callback; |
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76 | SV *fh, *fh2; |
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77 | void *dataptr, *data2ptr; |
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78 | Stat_t *statdata; |
44 | off_t offset; |
79 | off_t offset; |
45 | size_t length; |
80 | size_t length; |
46 | ssize_t result; |
81 | ssize_t result; |
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82 | |
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83 | int type; |
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84 | int fd, fd2; |
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85 | int errorno; |
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86 | STRLEN dataoffset; |
47 | mode_t mode; /* open */ |
87 | mode_t mode; /* open */ |
48 | int errorno; |
88 | unsigned char cancelled; |
49 | SV *data, *callback; |
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50 | void *dataptr; |
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51 | STRLEN dataoffset; |
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52 | |
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53 | Stat_t *statdata; |
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54 | } aio_cb; |
89 | } aio_cb; |
55 | |
90 | |
56 | typedef aio_cb *aio_req; |
91 | typedef aio_cb *aio_req; |
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92 | typedef aio_cb *aio_req_ornot; |
57 | |
93 | |
58 | static int started; |
94 | static int started, wanted; |
59 | static int nreqs; |
95 | static volatile int nreqs; |
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96 | static int max_outstanding = 1<<30; |
60 | static int respipe [2]; |
97 | static int respipe [2]; |
61 | |
98 | |
62 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
99 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
63 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
100 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
64 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
101 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
65 | |
102 | |
66 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
103 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
67 | static volatile aio_req ress, rese; /* queue start, queue end */ |
104 | static volatile aio_req ress, rese; /* queue start, queue end */ |
68 | |
105 | |
69 | static void *aio_proc(void *arg); |
106 | static void req_invoke (aio_req req); |
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107 | static void req_free (aio_req req); |
70 | |
108 | |
71 | static void |
109 | /* must be called at most once */ |
72 | start_thread (void) |
110 | static SV *req_sv (aio_req req, const char *klass) |
73 | { |
111 | { |
74 | sigset_t fullsigset, oldsigset; |
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75 | pthread_t tid; |
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76 | pthread_attr_t attr; |
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77 | |
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78 | pthread_attr_init (&attr); |
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79 | pthread_attr_setstacksize (&attr, STACKSIZE); |
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80 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
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81 | |
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82 | sigfillset (&fullsigset); |
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83 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
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84 | |
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85 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
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86 | started++; |
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87 | |
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88 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
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89 | } |
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90 | |
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91 | static void |
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92 | send_req (aio_req req) |
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93 | { |
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94 | nreqs++; |
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95 | |
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96 | pthread_mutex_lock (&reqlock); |
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97 | |
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98 | req->next = 0; |
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99 | |
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100 | if (reqe) |
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101 | { |
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102 | reqe->next = req; |
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103 | reqe = req; |
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104 | } |
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105 | else |
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106 | reqe = reqs = req; |
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107 | |
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108 | pthread_cond_signal (&reqwait); |
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109 | pthread_mutex_unlock (&reqlock); |
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110 | } |
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111 | |
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112 | static void |
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113 | end_thread (void) |
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114 | { |
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115 | aio_req req; |
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116 | New (0, req, 1, aio_cb); |
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117 | req->type = REQ_QUIT; |
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118 | |
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119 | send_req (req); |
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120 | } |
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121 | |
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122 | static void |
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123 | read_write (pTHX_ |
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124 | int dowrite, int fd, off_t offset, size_t length, |
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125 | SV *data, STRLEN dataoffset, SV *callback) |
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126 | { |
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127 | aio_req req; |
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128 | STRLEN svlen; |
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129 | char *svptr = SvPV (data, svlen); |
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130 | |
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131 | SvUPGRADE (data, SVt_PV); |
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132 | SvPOK_on (data); |
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133 | |
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134 | if (dataoffset < 0) |
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135 | dataoffset += svlen; |
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136 | |
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137 | if (dataoffset < 0 || dataoffset > svlen) |
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138 | croak ("data offset outside of string"); |
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139 | |
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140 | if (dowrite) |
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141 | { |
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142 | /* write: check length and adjust. */ |
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143 | if (length < 0 || length + dataoffset > svlen) |
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144 | length = svlen - dataoffset; |
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145 | } |
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146 | else |
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147 | { |
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148 | /* read: grow scalar as necessary */ |
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149 | svptr = SvGROW (data, length + dataoffset); |
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150 | } |
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151 | |
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152 | if (length < 0) |
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153 | croak ("length must not be negative"); |
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154 | |
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155 | Newz (0, req, 1, aio_cb); |
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156 | |
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157 | if (!req) |
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158 | croak ("out of memory during aio_req allocation"); |
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159 | |
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160 | req->type = dowrite ? REQ_WRITE : REQ_READ; |
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161 | req->fd = fd; |
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162 | req->offset = offset; |
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163 | req->length = length; |
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164 | req->data = SvREFCNT_inc (data); |
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165 | req->dataptr = (char *)svptr + dataoffset; |
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166 | req->callback = SvREFCNT_inc (callback); |
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167 | |
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168 | send_req (req); |
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169 | } |
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170 | |
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171 | static void |
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172 | poll_wait () |
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173 | { |
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174 | if (!nreqs) |
112 | if (!req->self) |
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113 | { |
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114 | req->self = (SV *)newHV (); |
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115 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
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116 | } |
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117 | |
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118 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
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119 | } |
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120 | |
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121 | static aio_req SvAIO_REQ (SV *sv) |
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122 | { |
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123 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
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124 | croak ("object of class " AIO_REQ_KLASS " expected"); |
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125 | |
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126 | MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
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127 | |
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128 | return mg ? (aio_req)mg->mg_ptr : 0; |
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129 | } |
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130 | |
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131 | static void aio_grp_feed (aio_req grp) |
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132 | { |
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133 | while (grp->length < grp->fd2) |
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134 | { |
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135 | int old_len = grp->length; |
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136 | |
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137 | if (grp->fh2 && SvOK (grp->fh2)) |
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138 | { |
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139 | dSP; |
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140 | |
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141 | ENTER; |
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142 | SAVETMPS; |
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143 | PUSHMARK (SP); |
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144 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
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145 | PUTBACK; |
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146 | call_sv (grp->fh2, G_VOID | G_EVAL); |
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147 | SPAGAIN; |
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148 | FREETMPS; |
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149 | LEAVE; |
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150 | } |
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151 | |
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152 | /* stop if no progress has been made */ |
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153 | if (old_len == grp->length) |
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154 | { |
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155 | SvREFCNT_dec (grp->fh2); |
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156 | grp->fh2 = 0; |
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157 | break; |
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158 | } |
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159 | } |
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160 | } |
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161 | |
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162 | static void aio_grp_dec (aio_req grp) |
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163 | { |
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164 | --grp->length; |
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165 | |
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166 | /* call feeder, if applicable */ |
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167 | aio_grp_feed (grp); |
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168 | |
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169 | /* finish, if done */ |
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170 | if (!grp->length && grp->fd) |
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171 | { |
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172 | req_invoke (grp); |
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173 | req_free (grp); |
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174 | } |
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175 | } |
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176 | |
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177 | static void poll_wait () |
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178 | { |
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179 | if (nreqs && !ress) |
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180 | { |
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181 | fd_set rfd; |
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182 | FD_ZERO(&rfd); |
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183 | FD_SET(respipe [0], &rfd); |
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184 | |
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185 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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186 | } |
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187 | } |
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188 | |
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189 | static void req_invoke (aio_req req) |
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190 | { |
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191 | dSP; |
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192 | int errorno = errno; |
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193 | |
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194 | if (req->cancelled || !SvOK (req->callback)) |
175 | return; |
195 | return; |
176 | |
196 | |
177 | fd_set rfd; |
197 | errno = req->errorno; |
178 | FD_ZERO(&rfd); |
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179 | FD_SET(respipe [0], &rfd); |
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180 | |
198 | |
181 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
199 | ENTER; |
182 | } |
200 | SAVETMPS; |
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201 | PUSHMARK (SP); |
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202 | EXTEND (SP, 1); |
183 | |
203 | |
184 | static int |
204 | switch (req->type) |
185 | poll_cb (pTHX) |
205 | { |
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206 | case REQ_READDIR: |
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207 | { |
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208 | SV *rv = &PL_sv_undef; |
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209 | |
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210 | if (req->result >= 0) |
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211 | { |
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212 | char *buf = req->data2ptr; |
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213 | AV *av = newAV (); |
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214 | |
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215 | while (req->result) |
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216 | { |
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217 | SV *sv = newSVpv (buf, 0); |
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218 | |
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219 | av_push (av, sv); |
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220 | buf += SvCUR (sv) + 1; |
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221 | req->result--; |
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222 | } |
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223 | |
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224 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
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225 | } |
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226 | |
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227 | PUSHs (rv); |
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228 | } |
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229 | break; |
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230 | |
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231 | case REQ_OPEN: |
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232 | { |
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233 | /* convert fd to fh */ |
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234 | SV *fh; |
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235 | |
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236 | PUSHs (sv_2mortal (newSViv (req->result))); |
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237 | PUTBACK; |
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238 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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239 | SPAGAIN; |
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240 | |
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241 | fh = SvREFCNT_inc (POPs); |
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242 | |
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243 | PUSHMARK (SP); |
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244 | XPUSHs (sv_2mortal (fh)); |
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245 | } |
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246 | break; |
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247 | |
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248 | case REQ_GROUP: |
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249 | req->fd = 2; /* mark group as finished */ |
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250 | |
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251 | if (req->data) |
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252 | { |
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253 | int i; |
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254 | AV *av = (AV *)req->data; |
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255 | |
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256 | EXTEND (SP, AvFILL (av) + 1); |
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257 | for (i = 0; i <= AvFILL (av); ++i) |
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258 | PUSHs (*av_fetch (av, i, 0)); |
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259 | } |
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260 | break; |
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261 | |
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262 | case REQ_SLEEP: |
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263 | break; |
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264 | |
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265 | default: |
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266 | PUSHs (sv_2mortal (newSViv (req->result))); |
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267 | break; |
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268 | } |
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269 | |
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270 | |
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271 | PUTBACK; |
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272 | call_sv (req->callback, G_VOID | G_EVAL); |
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273 | SPAGAIN; |
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274 | |
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275 | FREETMPS; |
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276 | LEAVE; |
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277 | |
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278 | errno = errorno; |
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279 | |
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280 | if (SvTRUE (ERRSV)) |
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281 | { |
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282 | req_free (req); |
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283 | croak (0); |
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284 | } |
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285 | } |
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286 | |
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287 | static void req_free (aio_req req) |
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288 | { |
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289 | if (req->grp) |
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290 | { |
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291 | aio_req grp = req->grp; |
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292 | |
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293 | /* unlink request */ |
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294 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
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295 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
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296 | |
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297 | if (grp->grp_first == req) |
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298 | grp->grp_first = req->grp_next; |
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299 | |
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300 | aio_grp_dec (grp); |
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301 | } |
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302 | |
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303 | if (req->self) |
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304 | { |
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305 | sv_unmagic (req->self, PERL_MAGIC_ext); |
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306 | SvREFCNT_dec (req->self); |
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307 | } |
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308 | |
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309 | SvREFCNT_dec (req->data); |
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310 | SvREFCNT_dec (req->fh); |
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311 | SvREFCNT_dec (req->fh2); |
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312 | SvREFCNT_dec (req->callback); |
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313 | Safefree (req->statdata); |
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314 | |
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315 | if (req->type == REQ_READDIR && req->result >= 0) |
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316 | free (req->data2ptr); |
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317 | |
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318 | Safefree (req); |
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319 | } |
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320 | |
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321 | static void req_cancel (aio_req req) |
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322 | { |
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323 | req->cancelled = 1; |
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324 | |
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325 | if (req->type == REQ_GROUP) |
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326 | { |
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327 | aio_req sub; |
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328 | |
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329 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
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330 | req_cancel (sub); |
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331 | } |
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332 | } |
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333 | |
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334 | static int poll_cb () |
186 | { |
335 | { |
187 | dSP; |
336 | dSP; |
188 | int count = 0; |
337 | int count = 0; |
|
|
338 | int do_croak = 0; |
189 | aio_req req; |
339 | aio_req req; |
190 | |
|
|
191 | { |
|
|
192 | /* read and signals sent by the worker threads */ |
|
|
193 | char buf [32]; |
|
|
194 | while (read (respipe [0], buf, 32) > 0) |
|
|
195 | ; |
|
|
196 | } |
|
|
197 | |
340 | |
198 | for (;;) |
341 | for (;;) |
199 | { |
342 | { |
200 | pthread_mutex_lock (&reslock); |
343 | pthread_mutex_lock (&reslock); |
201 | |
|
|
202 | req = ress; |
344 | req = ress; |
203 | |
345 | |
204 | if (ress) |
346 | if (req) |
205 | { |
347 | { |
206 | ress = ress->next; |
348 | ress = req->next; |
|
|
349 | |
207 | if (!ress) rese = 0; |
350 | if (!ress) |
|
|
351 | { |
|
|
352 | /* read any signals sent by the worker threads */ |
|
|
353 | char buf [32]; |
|
|
354 | while (read (respipe [0], buf, 32) == 32) |
|
|
355 | ; |
|
|
356 | |
|
|
357 | rese = 0; |
|
|
358 | } |
208 | } |
359 | } |
209 | |
360 | |
210 | pthread_mutex_unlock (&reslock); |
361 | pthread_mutex_unlock (&reslock); |
211 | |
362 | |
212 | if (!req) |
363 | if (!req) |
213 | break; |
364 | break; |
214 | |
365 | |
215 | nreqs--; |
366 | --nreqs; |
216 | |
367 | |
217 | if (req->type == REQ_QUIT) |
368 | if (req->type == REQ_QUIT) |
218 | started--; |
369 | started--; |
|
|
370 | else if (req->type == REQ_GROUP && req->length) |
|
|
371 | { |
|
|
372 | req->fd = 1; /* mark request as delayed */ |
|
|
373 | continue; |
|
|
374 | } |
219 | else |
375 | else |
220 | { |
376 | { |
221 | int errorno = errno; |
|
|
222 | errno = req->errorno; |
|
|
223 | |
|
|
224 | if (req->type == REQ_READ) |
377 | if (req->type == REQ_READ) |
225 | SvCUR_set (req->data, req->dataoffset |
378 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
226 | + req->result > 0 ? req->result : 0); |
|
|
227 | |
379 | |
|
|
380 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
381 | SvREADONLY_off (req->data); |
|
|
382 | |
228 | if (req->data) |
383 | if (req->statdata) |
229 | SvREFCNT_dec (req->data); |
|
|
230 | |
|
|
231 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
|
|
232 | { |
384 | { |
233 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
385 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
234 | PL_laststatval = req->result; |
386 | PL_laststatval = req->result; |
235 | PL_statcache = *(req->statdata); |
387 | PL_statcache = *(req->statdata); |
236 | |
|
|
237 | Safefree (req->statdata); |
|
|
238 | } |
388 | } |
239 | |
389 | |
240 | PUSHMARK (SP); |
390 | req_invoke (req); |
241 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
242 | |
391 | |
243 | if (req->type == REQ_OPEN) |
|
|
244 | { |
|
|
245 | /* convert fd to fh */ |
|
|
246 | SV *fh; |
|
|
247 | |
|
|
248 | PUTBACK; |
|
|
249 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
250 | SPAGAIN; |
|
|
251 | |
|
|
252 | fh = POPs; |
|
|
253 | |
|
|
254 | PUSHMARK (SP); |
|
|
255 | XPUSHs (fh); |
|
|
256 | } |
|
|
257 | |
|
|
258 | PUTBACK; |
|
|
259 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
260 | SPAGAIN; |
|
|
261 | |
|
|
262 | if (req->callback) |
|
|
263 | SvREFCNT_dec (req->callback); |
|
|
264 | |
|
|
265 | errno = errorno; |
|
|
266 | count++; |
392 | count++; |
267 | } |
393 | } |
268 | |
394 | |
269 | Safefree (req); |
395 | req_free (req); |
270 | } |
396 | } |
271 | |
397 | |
272 | return count; |
398 | return count; |
273 | } |
399 | } |
274 | |
400 | |
275 | static void * |
401 | static void *aio_proc(void *arg); |
|
|
402 | |
|
|
403 | static void start_thread (void) |
|
|
404 | { |
|
|
405 | sigset_t fullsigset, oldsigset; |
|
|
406 | pthread_t tid; |
|
|
407 | pthread_attr_t attr; |
|
|
408 | |
|
|
409 | pthread_attr_init (&attr); |
|
|
410 | pthread_attr_setstacksize (&attr, STACKSIZE); |
|
|
411 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
412 | |
|
|
413 | sigfillset (&fullsigset); |
|
|
414 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
|
|
415 | |
|
|
416 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
|
|
417 | started++; |
|
|
418 | |
|
|
419 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
420 | } |
|
|
421 | |
|
|
422 | static void req_send (aio_req req) |
|
|
423 | { |
|
|
424 | while (started < wanted && nreqs >= started) |
|
|
425 | start_thread (); |
|
|
426 | |
|
|
427 | ++nreqs; |
|
|
428 | |
|
|
429 | pthread_mutex_lock (&reqlock); |
|
|
430 | |
|
|
431 | req->next = 0; |
|
|
432 | |
|
|
433 | if (reqe) |
|
|
434 | { |
|
|
435 | reqe->next = req; |
|
|
436 | reqe = req; |
|
|
437 | } |
|
|
438 | else |
|
|
439 | reqe = reqs = req; |
|
|
440 | |
|
|
441 | pthread_cond_signal (&reqwait); |
|
|
442 | pthread_mutex_unlock (&reqlock); |
|
|
443 | |
|
|
444 | if (nreqs > max_outstanding) |
|
|
445 | for (;;) |
|
|
446 | { |
|
|
447 | poll_cb (); |
|
|
448 | |
|
|
449 | if (nreqs <= max_outstanding) |
|
|
450 | break; |
|
|
451 | |
|
|
452 | poll_wait (); |
|
|
453 | } |
|
|
454 | } |
|
|
455 | |
|
|
456 | static void end_thread (void) |
|
|
457 | { |
|
|
458 | aio_req req; |
|
|
459 | Newz (0, req, 1, aio_cb); |
|
|
460 | req->type = REQ_QUIT; |
|
|
461 | |
|
|
462 | req_send (req); |
|
|
463 | } |
|
|
464 | |
|
|
465 | static void min_parallel (int nthreads) |
|
|
466 | { |
|
|
467 | if (wanted < nthreads) |
|
|
468 | wanted = nthreads; |
|
|
469 | } |
|
|
470 | |
|
|
471 | static void max_parallel (int nthreads) |
|
|
472 | { |
|
|
473 | int cur = started; |
|
|
474 | |
|
|
475 | if (wanted > nthreads) |
|
|
476 | wanted = nthreads; |
|
|
477 | |
|
|
478 | while (cur > wanted) |
|
|
479 | { |
|
|
480 | end_thread (); |
|
|
481 | cur--; |
|
|
482 | } |
|
|
483 | |
|
|
484 | while (started > wanted) |
|
|
485 | { |
|
|
486 | poll_wait (); |
|
|
487 | poll_cb (); |
|
|
488 | } |
|
|
489 | } |
|
|
490 | |
|
|
491 | static void create_pipe () |
|
|
492 | { |
|
|
493 | if (pipe (respipe)) |
|
|
494 | croak ("unable to initialize result pipe"); |
|
|
495 | |
|
|
496 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
|
|
497 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
498 | |
|
|
499 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
500 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
501 | } |
|
|
502 | |
|
|
503 | /*****************************************************************************/ |
|
|
504 | /* work around various missing functions */ |
|
|
505 | |
|
|
506 | #if !HAVE_PREADWRITE |
|
|
507 | # define pread aio_pread |
|
|
508 | # define pwrite aio_pwrite |
|
|
509 | |
|
|
510 | /* |
|
|
511 | * make our pread/pwrite safe against themselves, but not against |
|
|
512 | * normal read/write by using a mutex. slows down execution a lot, |
|
|
513 | * but that's your problem, not mine. |
|
|
514 | */ |
|
|
515 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
|
|
516 | |
|
|
517 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
|
|
518 | { |
|
|
519 | ssize_t res; |
|
|
520 | off_t ooffset; |
|
|
521 | |
|
|
522 | pthread_mutex_lock (&preadwritelock); |
|
|
523 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
524 | lseek (fd, offset, SEEK_SET); |
|
|
525 | res = read (fd, buf, count); |
|
|
526 | lseek (fd, ooffset, SEEK_SET); |
|
|
527 | pthread_mutex_unlock (&preadwritelock); |
|
|
528 | |
|
|
529 | return res; |
|
|
530 | } |
|
|
531 | |
|
|
532 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
|
|
533 | { |
|
|
534 | ssize_t res; |
|
|
535 | off_t ooffset; |
|
|
536 | |
|
|
537 | pthread_mutex_lock (&preadwritelock); |
|
|
538 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
539 | lseek (fd, offset, SEEK_SET); |
|
|
540 | res = write (fd, buf, count); |
|
|
541 | lseek (fd, offset, SEEK_SET); |
|
|
542 | pthread_mutex_unlock (&preadwritelock); |
|
|
543 | |
|
|
544 | return res; |
|
|
545 | } |
|
|
546 | #endif |
|
|
547 | |
|
|
548 | #if !HAVE_FDATASYNC |
|
|
549 | # define fdatasync fsync |
|
|
550 | #endif |
|
|
551 | |
|
|
552 | #if !HAVE_READAHEAD |
|
|
553 | # define readahead aio_readahead |
|
|
554 | |
|
|
555 | static ssize_t readahead (int fd, off_t offset, size_t count) |
|
|
556 | { |
|
|
557 | char readahead_buf[4096]; |
|
|
558 | |
|
|
559 | while (count > 0) |
|
|
560 | { |
|
|
561 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
|
|
562 | |
|
|
563 | pread (fd, readahead_buf, len, offset); |
|
|
564 | offset += len; |
|
|
565 | count -= len; |
|
|
566 | } |
|
|
567 | |
|
|
568 | errno = 0; |
|
|
569 | } |
|
|
570 | #endif |
|
|
571 | |
|
|
572 | #if !HAVE_READDIR_R |
|
|
573 | # define readdir_r aio_readdir_r |
|
|
574 | |
|
|
575 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
|
|
576 | |
|
|
577 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
578 | { |
|
|
579 | struct dirent *e; |
|
|
580 | int errorno; |
|
|
581 | |
|
|
582 | pthread_mutex_lock (&readdirlock); |
|
|
583 | |
|
|
584 | e = readdir (dirp); |
|
|
585 | errorno = errno; |
|
|
586 | |
|
|
587 | if (e) |
|
|
588 | { |
|
|
589 | *res = ent; |
|
|
590 | strcpy (ent->d_name, e->d_name); |
|
|
591 | } |
|
|
592 | else |
|
|
593 | *res = 0; |
|
|
594 | |
|
|
595 | pthread_mutex_unlock (&readdirlock); |
|
|
596 | |
|
|
597 | errno = errorno; |
|
|
598 | return e ? 0 : -1; |
|
|
599 | } |
|
|
600 | #endif |
|
|
601 | |
|
|
602 | /* sendfile always needs emulation */ |
|
|
603 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
|
|
604 | { |
|
|
605 | ssize_t res; |
|
|
606 | |
|
|
607 | if (!count) |
|
|
608 | return 0; |
|
|
609 | |
|
|
610 | #if HAVE_SENDFILE |
|
|
611 | # if __linux |
|
|
612 | res = sendfile (ofd, ifd, &offset, count); |
|
|
613 | |
|
|
614 | # elif __freebsd |
|
|
615 | /* |
|
|
616 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
617 | * wasted on making it similar to other I/O functions. |
|
|
618 | */ |
|
|
619 | { |
|
|
620 | off_t sbytes; |
|
|
621 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
622 | |
|
|
623 | if (res < 0 && sbytes) |
|
|
624 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
|
|
625 | res = sbytes; |
|
|
626 | } |
|
|
627 | |
|
|
628 | # elif __hpux |
|
|
629 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
630 | |
|
|
631 | # elif __solaris |
|
|
632 | { |
|
|
633 | struct sendfilevec vec; |
|
|
634 | size_t sbytes; |
|
|
635 | |
|
|
636 | vec.sfv_fd = ifd; |
|
|
637 | vec.sfv_flag = 0; |
|
|
638 | vec.sfv_off = offset; |
|
|
639 | vec.sfv_len = count; |
|
|
640 | |
|
|
641 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
642 | |
|
|
643 | if (res < 0 && sbytes) |
|
|
644 | res = sbytes; |
|
|
645 | } |
|
|
646 | |
|
|
647 | # endif |
|
|
648 | #else |
|
|
649 | res = -1; |
|
|
650 | errno = ENOSYS; |
|
|
651 | #endif |
|
|
652 | |
|
|
653 | if (res < 0 |
|
|
654 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
655 | #if __solaris |
|
|
656 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
657 | #endif |
|
|
658 | ) |
|
|
659 | ) |
|
|
660 | { |
|
|
661 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
662 | char buf[4096]; |
|
|
663 | res = 0; |
|
|
664 | |
|
|
665 | while (count) |
|
|
666 | { |
|
|
667 | ssize_t cnt; |
|
|
668 | |
|
|
669 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
|
|
670 | |
|
|
671 | if (cnt <= 0) |
|
|
672 | { |
|
|
673 | if (cnt && !res) res = -1; |
|
|
674 | break; |
|
|
675 | } |
|
|
676 | |
|
|
677 | cnt = write (ofd, buf, cnt); |
|
|
678 | |
|
|
679 | if (cnt <= 0) |
|
|
680 | { |
|
|
681 | if (cnt && !res) res = -1; |
|
|
682 | break; |
|
|
683 | } |
|
|
684 | |
|
|
685 | offset += cnt; |
|
|
686 | res += cnt; |
|
|
687 | count -= cnt; |
|
|
688 | } |
|
|
689 | } |
|
|
690 | |
|
|
691 | return res; |
|
|
692 | } |
|
|
693 | |
|
|
694 | /* read a full directory */ |
|
|
695 | static int scandir_ (const char *path, void **namesp) |
|
|
696 | { |
|
|
697 | DIR *dirp = opendir (path); |
|
|
698 | union |
|
|
699 | { |
|
|
700 | struct dirent d; |
|
|
701 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
702 | } u; |
|
|
703 | struct dirent *entp; |
|
|
704 | char *name, *names; |
|
|
705 | int memlen = 4096; |
|
|
706 | int memofs = 0; |
|
|
707 | int res = 0; |
|
|
708 | int errorno; |
|
|
709 | |
|
|
710 | if (!dirp) |
|
|
711 | return -1; |
|
|
712 | |
|
|
713 | names = malloc (memlen); |
|
|
714 | |
|
|
715 | for (;;) |
|
|
716 | { |
|
|
717 | errno = 0, readdir_r (dirp, &u.d, &entp); |
|
|
718 | |
|
|
719 | if (!entp) |
|
|
720 | break; |
|
|
721 | |
|
|
722 | name = entp->d_name; |
|
|
723 | |
|
|
724 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
725 | { |
|
|
726 | int len = strlen (name) + 1; |
|
|
727 | |
|
|
728 | res++; |
|
|
729 | |
|
|
730 | while (memofs + len > memlen) |
|
|
731 | { |
|
|
732 | memlen *= 2; |
|
|
733 | names = realloc (names, memlen); |
|
|
734 | if (!names) |
|
|
735 | break; |
|
|
736 | } |
|
|
737 | |
|
|
738 | memcpy (names + memofs, name, len); |
|
|
739 | memofs += len; |
|
|
740 | } |
|
|
741 | } |
|
|
742 | |
|
|
743 | errorno = errno; |
|
|
744 | closedir (dirp); |
|
|
745 | |
|
|
746 | if (errorno) |
|
|
747 | { |
|
|
748 | free (names); |
|
|
749 | errno = errorno; |
|
|
750 | res = -1; |
|
|
751 | } |
|
|
752 | |
|
|
753 | *namesp = (void *)names; |
|
|
754 | return res; |
|
|
755 | } |
|
|
756 | |
|
|
757 | /*****************************************************************************/ |
|
|
758 | |
276 | aio_proc (void *thr_arg) |
759 | static void *aio_proc (void *thr_arg) |
277 | { |
760 | { |
278 | aio_req req; |
761 | aio_req req; |
279 | int type; |
762 | int type; |
280 | |
763 | |
281 | do |
764 | do |
… | |
… | |
300 | |
783 | |
301 | pthread_mutex_unlock (&reqlock); |
784 | pthread_mutex_unlock (&reqlock); |
302 | |
785 | |
303 | errno = 0; /* strictly unnecessary */ |
786 | errno = 0; /* strictly unnecessary */ |
304 | |
787 | |
305 | type = req->type; |
788 | if (!req->cancelled) |
306 | |
789 | switch (type = req->type) /* remember type for QUIT check */ |
307 | switch (type) |
|
|
308 | { |
790 | { |
309 | case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break; |
791 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
310 | case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, req->offset); break; |
792 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
311 | #if SYS_readahead |
793 | |
312 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
794 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
313 | #else |
795 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
314 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
|
|
315 | #endif |
|
|
316 | |
796 | |
317 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
797 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
318 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
798 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
319 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
799 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
320 | |
800 | |
321 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
801 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
322 | case REQ_CLOSE: req->result = close (req->fd); break; |
802 | case REQ_CLOSE: req->result = close (req->fd); break; |
323 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
803 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
324 | |
|
|
325 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
804 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
805 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
|
|
806 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
|
|
807 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
|
|
808 | |
326 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
809 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
|
|
810 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
811 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
327 | |
812 | |
|
|
813 | case REQ_SLEEP: |
|
|
814 | { |
|
|
815 | struct timeval tv; |
|
|
816 | |
|
|
817 | tv.tv_sec = req->fd; |
|
|
818 | tv.tv_usec = req->fd2; |
|
|
819 | |
|
|
820 | req->result = select (0, 0, 0, 0, &tv); |
|
|
821 | } |
|
|
822 | |
328 | case REQ_QUIT: |
823 | case REQ_QUIT: |
329 | break; |
824 | break; |
330 | |
825 | |
331 | default: |
826 | default: |
332 | req->result = ENOSYS; |
827 | req->result = ENOSYS; |
333 | break; |
828 | break; |
334 | } |
829 | } |
335 | |
830 | |
336 | req->errorno = errno; |
831 | req->errorno = errno; |
337 | |
832 | |
338 | pthread_mutex_lock (&reslock); |
833 | pthread_mutex_lock (&reslock); |
339 | |
834 | |
… | |
… | |
357 | while (type != REQ_QUIT); |
852 | while (type != REQ_QUIT); |
358 | |
853 | |
359 | return 0; |
854 | return 0; |
360 | } |
855 | } |
361 | |
856 | |
|
|
857 | /*****************************************************************************/ |
|
|
858 | |
|
|
859 | static void atfork_prepare (void) |
|
|
860 | { |
|
|
861 | pthread_mutex_lock (&reqlock); |
|
|
862 | pthread_mutex_lock (&reslock); |
|
|
863 | #if !HAVE_PREADWRITE |
|
|
864 | pthread_mutex_lock (&preadwritelock); |
|
|
865 | #endif |
|
|
866 | #if !HAVE_READDIR_R |
|
|
867 | pthread_mutex_lock (&readdirlock); |
|
|
868 | #endif |
|
|
869 | } |
|
|
870 | |
|
|
871 | static void atfork_parent (void) |
|
|
872 | { |
|
|
873 | #if !HAVE_READDIR_R |
|
|
874 | pthread_mutex_unlock (&readdirlock); |
|
|
875 | #endif |
|
|
876 | #if !HAVE_PREADWRITE |
|
|
877 | pthread_mutex_unlock (&preadwritelock); |
|
|
878 | #endif |
|
|
879 | pthread_mutex_unlock (&reslock); |
|
|
880 | pthread_mutex_unlock (&reqlock); |
|
|
881 | } |
|
|
882 | |
|
|
883 | static void atfork_child (void) |
|
|
884 | { |
|
|
885 | aio_req prv; |
|
|
886 | |
|
|
887 | started = 0; |
|
|
888 | |
|
|
889 | while (reqs) |
|
|
890 | { |
|
|
891 | prv = reqs; |
|
|
892 | reqs = prv->next; |
|
|
893 | req_free (prv); |
|
|
894 | } |
|
|
895 | |
|
|
896 | reqs = reqe = 0; |
|
|
897 | |
|
|
898 | while (ress) |
|
|
899 | { |
|
|
900 | prv = ress; |
|
|
901 | ress = prv->next; |
|
|
902 | req_free (prv); |
|
|
903 | } |
|
|
904 | |
|
|
905 | ress = rese = 0; |
|
|
906 | |
|
|
907 | close (respipe [0]); |
|
|
908 | close (respipe [1]); |
|
|
909 | create_pipe (); |
|
|
910 | |
|
|
911 | atfork_parent (); |
|
|
912 | } |
|
|
913 | |
|
|
914 | #define dREQ \ |
|
|
915 | aio_req req; \ |
|
|
916 | \ |
|
|
917 | if (SvOK (callback) && !SvROK (callback)) \ |
|
|
918 | croak ("callback must be undef or of reference type"); \ |
|
|
919 | \ |
|
|
920 | Newz (0, req, 1, aio_cb); \ |
|
|
921 | if (!req) \ |
|
|
922 | croak ("out of memory during aio_req allocation"); \ |
|
|
923 | \ |
|
|
924 | req->callback = newSVsv (callback) |
|
|
925 | |
|
|
926 | #define REQ_SEND \ |
|
|
927 | req_send (req); \ |
|
|
928 | \ |
|
|
929 | if (GIMME_V != G_VOID) \ |
|
|
930 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
|
|
931 | |
362 | MODULE = IO::AIO PACKAGE = IO::AIO |
932 | MODULE = IO::AIO PACKAGE = IO::AIO |
363 | |
933 | |
|
|
934 | PROTOTYPES: ENABLE |
|
|
935 | |
364 | BOOT: |
936 | BOOT: |
365 | { |
937 | { |
366 | if (pipe (respipe)) |
938 | HV *stash = gv_stashpv ("IO::AIO", 1); |
367 | croak ("unable to initialize result pipe"); |
939 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
940 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
941 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
368 | |
942 | |
369 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
943 | create_pipe (); |
370 | croak ("cannot set result pipe to nonblocking mode"); |
944 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
371 | |
|
|
372 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
373 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
374 | } |
945 | } |
375 | |
946 | |
376 | void |
947 | void |
377 | min_parallel(nthreads) |
948 | min_parallel (nthreads) |
378 | int nthreads |
949 | int nthreads |
379 | PROTOTYPE: $ |
950 | PROTOTYPE: $ |
380 | CODE: |
|
|
381 | while (nthreads > started) |
|
|
382 | start_thread (); |
|
|
383 | |
951 | |
384 | void |
952 | void |
385 | max_parallel(nthreads) |
953 | max_parallel (nthreads) |
386 | int nthreads |
954 | int nthreads |
387 | PROTOTYPE: $ |
955 | PROTOTYPE: $ |
|
|
956 | |
|
|
957 | int |
|
|
958 | max_outstanding (nreqs) |
|
|
959 | int nreqs |
|
|
960 | PROTOTYPE: $ |
388 | CODE: |
961 | CODE: |
389 | { |
962 | RETVAL = max_outstanding; |
390 | int cur = started; |
963 | max_outstanding = nreqs; |
391 | while (cur > nthreads) |
|
|
392 | { |
|
|
393 | end_thread (); |
|
|
394 | cur--; |
|
|
395 | } |
|
|
396 | |
964 | |
397 | while (started > nthreads) |
|
|
398 | { |
|
|
399 | poll_wait (); |
|
|
400 | poll_cb (aTHX); |
|
|
401 | } |
|
|
402 | } |
|
|
403 | |
|
|
404 | void |
965 | void |
405 | aio_open(pathname,flags,mode,callback) |
966 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
406 | SV * pathname |
967 | SV * pathname |
407 | int flags |
968 | int flags |
408 | int mode |
969 | int mode |
409 | SV * callback |
970 | SV * callback |
410 | PROTOTYPE: $$$$ |
971 | PROTOTYPE: $$$;$ |
411 | CODE: |
972 | PPCODE: |
412 | { |
973 | { |
413 | aio_req req; |
974 | dREQ; |
414 | |
|
|
415 | Newz (0, req, 1, aio_cb); |
|
|
416 | |
|
|
417 | if (!req) |
|
|
418 | croak ("out of memory during aio_req allocation"); |
|
|
419 | |
975 | |
420 | req->type = REQ_OPEN; |
976 | req->type = REQ_OPEN; |
421 | req->data = newSVsv (pathname); |
977 | req->data = newSVsv (pathname); |
422 | req->dataptr = SvPV_nolen (req->data); |
978 | req->dataptr = SvPVbyte_nolen (req->data); |
423 | req->fd = flags; |
979 | req->fd = flags; |
424 | req->mode = mode; |
980 | req->mode = mode; |
425 | req->callback = SvREFCNT_inc (callback); |
|
|
426 | |
981 | |
427 | send_req (req); |
982 | REQ_SEND; |
428 | } |
983 | } |
429 | |
984 | |
430 | void |
985 | void |
431 | aio_close(fh,callback) |
986 | aio_close (fh,callback=&PL_sv_undef) |
432 | InputStream fh |
987 | SV * fh |
433 | SV * callback |
988 | SV * callback |
434 | PROTOTYPE: $$ |
989 | PROTOTYPE: $;$ |
435 | ALIAS: |
990 | ALIAS: |
436 | aio_close = REQ_CLOSE |
991 | aio_close = REQ_CLOSE |
437 | aio_fsync = REQ_FSYNC |
992 | aio_fsync = REQ_FSYNC |
438 | aio_fdatasync = REQ_FDATASYNC |
993 | aio_fdatasync = REQ_FDATASYNC |
439 | CODE: |
994 | PPCODE: |
|
|
995 | { |
|
|
996 | dREQ; |
|
|
997 | |
|
|
998 | req->type = ix; |
|
|
999 | req->fh = newSVsv (fh); |
|
|
1000 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
|
|
1001 | |
|
|
1002 | REQ_SEND (req); |
|
|
1003 | } |
|
|
1004 | |
|
|
1005 | void |
|
|
1006 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
|
|
1007 | SV * fh |
|
|
1008 | UV offset |
|
|
1009 | UV length |
|
|
1010 | SV * data |
|
|
1011 | UV dataoffset |
|
|
1012 | SV * callback |
|
|
1013 | ALIAS: |
|
|
1014 | aio_read = REQ_READ |
|
|
1015 | aio_write = REQ_WRITE |
|
|
1016 | PROTOTYPE: $$$$$;$ |
|
|
1017 | PPCODE: |
440 | { |
1018 | { |
441 | aio_req req; |
1019 | aio_req req; |
|
|
1020 | STRLEN svlen; |
|
|
1021 | char *svptr = SvPVbyte (data, svlen); |
442 | |
1022 | |
443 | Newz (0, req, 1, aio_cb); |
1023 | SvUPGRADE (data, SVt_PV); |
|
|
1024 | SvPOK_on (data); |
444 | |
1025 | |
445 | if (!req) |
1026 | if (dataoffset < 0) |
446 | croak ("out of memory during aio_req allocation"); |
1027 | dataoffset += svlen; |
447 | |
1028 | |
448 | req->type = ix; |
1029 | if (dataoffset < 0 || dataoffset > svlen) |
449 | req->fd = PerlIO_fileno (fh); |
1030 | croak ("data offset outside of string"); |
450 | req->callback = SvREFCNT_inc (callback); |
|
|
451 | |
1031 | |
452 | send_req (req); |
1032 | if (ix == REQ_WRITE) |
453 | } |
1033 | { |
454 | |
1034 | /* write: check length and adjust. */ |
455 | void |
1035 | if (length < 0 || length + dataoffset > svlen) |
456 | aio_read(fh,offset,length,data,dataoffset,callback) |
1036 | length = svlen - dataoffset; |
457 | InputStream fh |
1037 | } |
458 | UV offset |
1038 | else |
459 | IV length |
1039 | { |
460 | SV * data |
1040 | /* read: grow scalar as necessary */ |
461 | IV dataoffset |
1041 | svptr = SvGROW (data, length + dataoffset); |
462 | SV * callback |
1042 | } |
463 | PROTOTYPE: $$$$$$ |
|
|
464 | CODE: |
|
|
465 | read_write (aTHX_ 0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
466 | |
|
|
467 | void |
|
|
468 | aio_write(fh,offset,length,data,dataoffset,callback) |
|
|
469 | OutputStream fh |
|
|
470 | UV offset |
|
|
471 | IV length |
|
|
472 | SV * data |
|
|
473 | IV dataoffset |
|
|
474 | SV * callback |
|
|
475 | PROTOTYPE: $$$$$$ |
|
|
476 | CODE: |
|
|
477 | read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
478 | |
|
|
479 | void |
|
|
480 | aio_readahead(fh,offset,length,callback) |
|
|
481 | InputStream fh |
|
|
482 | UV offset |
|
|
483 | IV length |
|
|
484 | SV * callback |
|
|
485 | PROTOTYPE: $$$$ |
|
|
486 | CODE: |
|
|
487 | { |
|
|
488 | aio_req req; |
|
|
489 | |
1043 | |
490 | if (length < 0) |
1044 | if (length < 0) |
491 | croak ("length must not be negative"); |
1045 | croak ("length must not be negative"); |
492 | |
1046 | |
493 | Newz (0, req, 1, aio_cb); |
1047 | { |
|
|
1048 | dREQ; |
494 | |
1049 | |
495 | if (!req) |
1050 | req->type = ix; |
496 | croak ("out of memory during aio_req allocation"); |
1051 | req->fh = newSVsv (fh); |
|
|
1052 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
|
|
1053 | : IoOFP (sv_2io (fh))); |
|
|
1054 | req->offset = offset; |
|
|
1055 | req->length = length; |
|
|
1056 | req->data = SvREFCNT_inc (data); |
|
|
1057 | req->dataptr = (char *)svptr + dataoffset; |
|
|
1058 | |
|
|
1059 | if (!SvREADONLY (data)) |
|
|
1060 | { |
|
|
1061 | SvREADONLY_on (data); |
|
|
1062 | req->data2ptr = (void *)data; |
|
|
1063 | } |
|
|
1064 | |
|
|
1065 | REQ_SEND; |
|
|
1066 | } |
|
|
1067 | } |
|
|
1068 | |
|
|
1069 | void |
|
|
1070 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
|
|
1071 | SV * out_fh |
|
|
1072 | SV * in_fh |
|
|
1073 | UV in_offset |
|
|
1074 | UV length |
|
|
1075 | SV * callback |
|
|
1076 | PROTOTYPE: $$$$;$ |
|
|
1077 | PPCODE: |
|
|
1078 | { |
|
|
1079 | dREQ; |
|
|
1080 | |
|
|
1081 | req->type = REQ_SENDFILE; |
|
|
1082 | req->fh = newSVsv (out_fh); |
|
|
1083 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
1084 | req->fh2 = newSVsv (in_fh); |
|
|
1085 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
1086 | req->offset = in_offset; |
|
|
1087 | req->length = length; |
|
|
1088 | |
|
|
1089 | REQ_SEND; |
|
|
1090 | } |
|
|
1091 | |
|
|
1092 | void |
|
|
1093 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
|
|
1094 | SV * fh |
|
|
1095 | UV offset |
|
|
1096 | IV length |
|
|
1097 | SV * callback |
|
|
1098 | PROTOTYPE: $$$;$ |
|
|
1099 | PPCODE: |
|
|
1100 | { |
|
|
1101 | dREQ; |
497 | |
1102 | |
498 | req->type = REQ_READAHEAD; |
1103 | req->type = REQ_READAHEAD; |
|
|
1104 | req->fh = newSVsv (fh); |
499 | req->fd = PerlIO_fileno (fh); |
1105 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
500 | req->offset = offset; |
1106 | req->offset = offset; |
501 | req->length = length; |
1107 | req->length = length; |
502 | req->callback = SvREFCNT_inc (callback); |
|
|
503 | |
1108 | |
504 | send_req (req); |
1109 | REQ_SEND; |
505 | } |
1110 | } |
506 | |
1111 | |
507 | void |
1112 | void |
508 | aio_stat(fh_or_path,callback) |
1113 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
509 | SV * fh_or_path |
1114 | SV * fh_or_path |
510 | SV * callback |
1115 | SV * callback |
511 | PROTOTYPE: $$ |
|
|
512 | ALIAS: |
1116 | ALIAS: |
|
|
1117 | aio_stat = REQ_STAT |
513 | aio_lstat = 1 |
1118 | aio_lstat = REQ_LSTAT |
514 | CODE: |
1119 | PPCODE: |
515 | { |
1120 | { |
516 | aio_req req; |
1121 | dREQ; |
517 | |
|
|
518 | Newz (0, req, 1, aio_cb); |
|
|
519 | |
|
|
520 | if (!req) |
|
|
521 | croak ("out of memory during aio_req allocation"); |
|
|
522 | |
1122 | |
523 | New (0, req->statdata, 1, Stat_t); |
1123 | New (0, req->statdata, 1, Stat_t); |
524 | |
|
|
525 | if (!req->statdata) |
1124 | if (!req->statdata) |
|
|
1125 | { |
|
|
1126 | req_free (req); |
526 | croak ("out of memory during aio_req->statdata allocation"); |
1127 | croak ("out of memory during aio_req->statdata allocation"); |
|
|
1128 | } |
527 | |
1129 | |
528 | if (SvPOK (fh_or_path)) |
1130 | if (SvPOK (fh_or_path)) |
529 | { |
1131 | { |
530 | req->type = ix ? REQ_LSTAT : REQ_STAT; |
1132 | req->type = ix; |
531 | req->data = newSVsv (fh_or_path); |
1133 | req->data = newSVsv (fh_or_path); |
532 | req->dataptr = SvPV_nolen (req->data); |
1134 | req->dataptr = SvPVbyte_nolen (req->data); |
533 | } |
1135 | } |
534 | else |
1136 | else |
535 | { |
1137 | { |
536 | req->type = REQ_FSTAT; |
1138 | req->type = REQ_FSTAT; |
|
|
1139 | req->fh = newSVsv (fh_or_path); |
537 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1140 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
538 | } |
1141 | } |
539 | |
1142 | |
540 | req->callback = SvREFCNT_inc (callback); |
1143 | REQ_SEND; |
541 | |
|
|
542 | send_req (req); |
|
|
543 | } |
1144 | } |
544 | |
1145 | |
545 | void |
1146 | void |
546 | aio_unlink(pathname,callback) |
1147 | aio_unlink (pathname,callback=&PL_sv_undef) |
547 | SV * pathname |
1148 | SV * pathname |
548 | SV * callback |
1149 | SV * callback |
|
|
1150 | ALIAS: |
|
|
1151 | aio_unlink = REQ_UNLINK |
|
|
1152 | aio_rmdir = REQ_RMDIR |
|
|
1153 | aio_readdir = REQ_READDIR |
|
|
1154 | PPCODE: |
|
|
1155 | { |
|
|
1156 | dREQ; |
|
|
1157 | |
|
|
1158 | req->type = ix; |
|
|
1159 | req->data = newSVsv (pathname); |
|
|
1160 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1161 | |
|
|
1162 | REQ_SEND; |
|
|
1163 | } |
|
|
1164 | |
|
|
1165 | void |
|
|
1166 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
|
|
1167 | SV * oldpath |
|
|
1168 | SV * newpath |
|
|
1169 | SV * callback |
|
|
1170 | ALIAS: |
|
|
1171 | aio_link = REQ_LINK |
|
|
1172 | aio_symlink = REQ_SYMLINK |
|
|
1173 | aio_rename = REQ_RENAME |
|
|
1174 | PPCODE: |
|
|
1175 | { |
|
|
1176 | dREQ; |
|
|
1177 | |
|
|
1178 | req->type = ix; |
|
|
1179 | req->fh = newSVsv (oldpath); |
|
|
1180 | req->data2ptr = SvPVbyte_nolen (req->fh); |
|
|
1181 | req->data = newSVsv (newpath); |
|
|
1182 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1183 | |
|
|
1184 | REQ_SEND; |
|
|
1185 | } |
|
|
1186 | |
|
|
1187 | void |
|
|
1188 | aio_sleep (delay,callback=&PL_sv_undef) |
|
|
1189 | double delay |
|
|
1190 | SV * callback |
|
|
1191 | PPCODE: |
|
|
1192 | { |
|
|
1193 | dREQ; |
|
|
1194 | |
|
|
1195 | req->type = REQ_SLEEP; |
|
|
1196 | req->fd = delay < 0. ? 0 : delay; |
|
|
1197 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
|
|
1198 | |
|
|
1199 | REQ_SEND; |
|
|
1200 | } |
|
|
1201 | |
|
|
1202 | void |
|
|
1203 | aio_group (callback=&PL_sv_undef) |
|
|
1204 | SV * callback |
549 | PROTOTYPE: $$ |
1205 | PROTOTYPE: ;$ |
|
|
1206 | PPCODE: |
|
|
1207 | { |
|
|
1208 | dREQ; |
|
|
1209 | req->type = REQ_GROUP; |
|
|
1210 | req_send (req); |
|
|
1211 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1212 | } |
|
|
1213 | |
|
|
1214 | void |
|
|
1215 | flush () |
|
|
1216 | PROTOTYPE: |
550 | CODE: |
1217 | CODE: |
551 | { |
1218 | while (nreqs) |
552 | aio_req req; |
1219 | { |
553 | |
1220 | poll_wait (); |
554 | Newz (0, req, 1, aio_cb); |
1221 | poll_cb (); |
555 | |
1222 | } |
556 | if (!req) |
1223 | |
557 | croak ("out of memory during aio_req allocation"); |
1224 | void |
558 | |
1225 | poll() |
559 | req->type = REQ_UNLINK; |
1226 | PROTOTYPE: |
560 | req->data = newSVsv (pathname); |
1227 | CODE: |
561 | req->dataptr = SvPV_nolen (req->data); |
1228 | if (nreqs) |
562 | req->callback = SvREFCNT_inc (callback); |
1229 | { |
563 | |
1230 | poll_wait (); |
564 | send_req (req); |
1231 | poll_cb (); |
565 | } |
1232 | } |
566 | |
1233 | |
567 | int |
1234 | int |
568 | poll_fileno() |
1235 | poll_fileno() |
569 | PROTOTYPE: |
1236 | PROTOTYPE: |
570 | CODE: |
1237 | CODE: |
… | |
… | |
574 | |
1241 | |
575 | int |
1242 | int |
576 | poll_cb(...) |
1243 | poll_cb(...) |
577 | PROTOTYPE: |
1244 | PROTOTYPE: |
578 | CODE: |
1245 | CODE: |
579 | RETVAL = poll_cb (aTHX); |
1246 | RETVAL = poll_cb (); |
580 | OUTPUT: |
1247 | OUTPUT: |
581 | RETVAL |
1248 | RETVAL |
582 | |
1249 | |
583 | void |
1250 | void |
584 | poll_wait() |
1251 | poll_wait() |
… | |
… | |
593 | CODE: |
1260 | CODE: |
594 | RETVAL = nreqs; |
1261 | RETVAL = nreqs; |
595 | OUTPUT: |
1262 | OUTPUT: |
596 | RETVAL |
1263 | RETVAL |
597 | |
1264 | |
|
|
1265 | PROTOTYPES: DISABLE |
|
|
1266 | |
|
|
1267 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1268 | |
|
|
1269 | void |
|
|
1270 | cancel (aio_req_ornot req) |
|
|
1271 | PROTOTYPE: |
|
|
1272 | CODE: |
|
|
1273 | req_cancel (req); |
|
|
1274 | |
|
|
1275 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1276 | |
|
|
1277 | void |
|
|
1278 | add (aio_req grp, ...) |
|
|
1279 | PPCODE: |
|
|
1280 | { |
|
|
1281 | int i; |
|
|
1282 | |
|
|
1283 | if (grp->fd == 2) |
|
|
1284 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1285 | |
|
|
1286 | for (i = 1; i < items; ++i ) |
|
|
1287 | { |
|
|
1288 | if (GIMME_V != G_VOID) |
|
|
1289 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1290 | |
|
|
1291 | aio_req req = SvAIO_REQ (ST (i)); |
|
|
1292 | |
|
|
1293 | if (req) |
|
|
1294 | { |
|
|
1295 | ++grp->length; |
|
|
1296 | req->grp = grp; |
|
|
1297 | |
|
|
1298 | req->grp_prev = 0; |
|
|
1299 | req->grp_next = grp->grp_first; |
|
|
1300 | |
|
|
1301 | if (grp->grp_first) |
|
|
1302 | grp->grp_first->grp_prev = req; |
|
|
1303 | |
|
|
1304 | grp->grp_first = req; |
|
|
1305 | } |
|
|
1306 | } |
|
|
1307 | } |
|
|
1308 | |
|
|
1309 | void |
|
|
1310 | result (aio_req grp, ...) |
|
|
1311 | CODE: |
|
|
1312 | { |
|
|
1313 | int i; |
|
|
1314 | AV *av = newAV (); |
|
|
1315 | |
|
|
1316 | for (i = 1; i < items; ++i ) |
|
|
1317 | av_push (av, newSVsv (ST (i))); |
|
|
1318 | |
|
|
1319 | SvREFCNT_dec (grp->data); |
|
|
1320 | grp->data = (SV *)av; |
|
|
1321 | } |
|
|
1322 | |
|
|
1323 | void |
|
|
1324 | lock (aio_req grp) |
|
|
1325 | CODE: |
|
|
1326 | ++grp->length; |
|
|
1327 | |
|
|
1328 | void |
|
|
1329 | unlock (aio_req grp) |
|
|
1330 | CODE: |
|
|
1331 | aio_grp_dec (grp); |
|
|
1332 | |
|
|
1333 | void |
|
|
1334 | feeder_limit (aio_req grp, int limit) |
|
|
1335 | CODE: |
|
|
1336 | grp->fd2 = limit; |
|
|
1337 | aio_grp_feed (grp); |
|
|
1338 | |
|
|
1339 | void |
|
|
1340 | set_feeder (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1341 | CODE: |
|
|
1342 | { |
|
|
1343 | SvREFCNT_dec (grp->fh2); |
|
|
1344 | grp->fh2 = newSVsv (callback); |
|
|
1345 | |
|
|
1346 | if (grp->fd2 <= 0) |
|
|
1347 | grp->fd2 = 2; |
|
|
1348 | |
|
|
1349 | aio_grp_feed (grp); |
|
|
1350 | } |
|
|
1351 | |