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 | { |
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69 | struct aio_cb *grp, *grp_prev, *grp_next; |
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70 | |
39 | struct aio_cb *volatile next; |
71 | struct aio_cb *volatile next; |
40 | |
72 | |
41 | int type; |
73 | SV *self; /* the perl counterpart of this request, if any */ |
42 | |
74 | |
43 | int fd; |
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_free (aio_req req); |
70 | |
107 | |
71 | static void |
108 | /* must be called at most once */ |
72 | start_thread (void) |
109 | static SV *req_sv (aio_req req, const char *klass) |
73 | { |
110 | { |
74 | sigset_t fullsigset, oldsigset; |
111 | req->self = (SV *)newHV (); |
75 | pthread_t tid; |
112 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
76 | pthread_attr_t attr; |
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77 | |
113 | |
78 | pthread_attr_init (&attr); |
114 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
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 | } |
115 | } |
90 | |
116 | |
91 | static void |
117 | static aio_req SvAIO_REQ (SV *sv) |
92 | send_req (aio_req req) |
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93 | { |
118 | { |
94 | nreqs++; |
119 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
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120 | croak ("object of class " AIO_REQ_KLASS " expected"); |
95 | |
121 | |
96 | pthread_mutex_lock (&reqlock); |
122 | MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
97 | |
123 | |
98 | req->next = 0; |
124 | return mg ? (aio_req)mg->mg_ptr : 0; |
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125 | } |
99 | |
126 | |
100 | if (reqe) |
127 | static void poll_wait () |
101 | { |
128 | { |
102 | reqe->next = req; |
129 | if (nreqs && !ress) |
103 | reqe = req; |
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104 | } |
130 | { |
105 | else |
131 | fd_set rfd; |
106 | reqe = reqs = req; |
132 | FD_ZERO(&rfd); |
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133 | FD_SET(respipe [0], &rfd); |
107 | |
134 | |
108 | pthread_cond_signal (&reqwait); |
135 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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 | { |
136 | } |
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 | } |
137 | } |
170 | |
138 | |
171 | static void |
139 | static void req_invoke (aio_req req) |
172 | poll_wait () |
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173 | { |
140 | { |
174 | if (!nreqs) |
141 | dSP; |
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142 | int errorno = errno; |
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143 | |
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144 | if (req->cancelled || !SvOK (req->callback)) |
175 | return; |
145 | return; |
176 | |
146 | |
177 | fd_set rfd; |
147 | errno = req->errorno; |
178 | FD_ZERO(&rfd); |
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179 | FD_SET(respipe [0], &rfd); |
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180 | |
148 | |
181 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
149 | ENTER; |
182 | } |
150 | PUSHMARK (SP); |
183 | |
151 | |
184 | static int |
152 | switch (req->type) |
185 | poll_cb (pTHX) |
153 | { |
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154 | case REQ_READDIR: |
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155 | { |
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156 | SV *rv = &PL_sv_undef; |
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157 | |
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158 | if (req->result >= 0) |
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159 | { |
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160 | char *buf = req->data2ptr; |
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161 | AV *av = newAV (); |
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162 | |
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163 | while (req->result) |
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164 | { |
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165 | SV *sv = newSVpv (buf, 0); |
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166 | |
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167 | av_push (av, sv); |
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168 | buf += SvCUR (sv) + 1; |
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169 | req->result--; |
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170 | } |
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171 | |
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172 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
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173 | } |
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174 | |
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175 | XPUSHs (rv); |
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176 | } |
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177 | break; |
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178 | |
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179 | case REQ_OPEN: |
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180 | { |
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181 | /* convert fd to fh */ |
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182 | SV *fh; |
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183 | |
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184 | XPUSHs (sv_2mortal (newSViv (req->result))); |
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185 | PUTBACK; |
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186 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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187 | SPAGAIN; |
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188 | |
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189 | fh = SvREFCNT_inc (POPs); |
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190 | |
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191 | PUSHMARK (SP); |
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192 | XPUSHs (sv_2mortal (fh)); |
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193 | } |
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194 | break; |
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195 | |
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196 | case REQ_SLEEP: |
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197 | case REQ_GROUP: |
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198 | break; |
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199 | |
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200 | default: |
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201 | XPUSHs (sv_2mortal (newSViv (req->result))); |
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202 | break; |
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203 | } |
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204 | |
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205 | |
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206 | PUTBACK; |
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207 | call_sv (req->callback, G_VOID | G_EVAL); |
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208 | SPAGAIN; |
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209 | |
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210 | if (SvTRUE (ERRSV)) |
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211 | { |
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212 | req_free (req); |
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213 | croak (0); |
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214 | } |
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215 | |
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216 | LEAVE; |
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217 | |
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218 | errno = errorno; |
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219 | } |
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220 | |
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221 | static void req_free (aio_req req) |
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222 | { |
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223 | if (req->grp) |
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224 | { |
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225 | aio_req grp = req->grp; |
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226 | |
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227 | /* unlink request */ |
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228 | req->grp_next->grp_prev = req->grp_prev; |
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229 | req->grp_prev->grp_next = req->grp_next; |
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230 | |
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231 | if (grp->grp_next == grp && grp->fd) |
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232 | { |
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233 | req_invoke (grp); |
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234 | req_free (grp); |
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235 | } |
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236 | } |
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237 | |
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238 | if (req->self) |
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239 | { |
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240 | sv_unmagic (req->self, PERL_MAGIC_ext); |
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241 | SvREFCNT_dec (req->self); |
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242 | } |
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243 | |
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244 | if (req->data) |
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245 | SvREFCNT_dec (req->data); |
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246 | |
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247 | if (req->fh) |
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248 | SvREFCNT_dec (req->fh); |
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249 | |
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250 | if (req->fh2) |
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251 | SvREFCNT_dec (req->fh2); |
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252 | |
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253 | if (req->statdata) |
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254 | Safefree (req->statdata); |
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255 | |
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256 | if (req->callback) |
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257 | SvREFCNT_dec (req->callback); |
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258 | |
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259 | if (req->type == REQ_READDIR && req->result >= 0) |
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260 | free (req->data2ptr); |
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261 | |
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262 | Safefree (req); |
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263 | } |
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264 | |
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265 | static void req_cancel (aio_req req) |
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266 | { |
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267 | req->cancelled = 1; |
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268 | |
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269 | if (req->type == REQ_GROUP) |
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270 | { |
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271 | aio_req sub; |
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272 | |
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273 | for (sub = req->grp_next; sub != req; sub = sub->grp_next) |
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274 | req_cancel (sub); |
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275 | } |
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276 | } |
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277 | |
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278 | static int poll_cb () |
186 | { |
279 | { |
187 | dSP; |
280 | dSP; |
188 | int count = 0; |
281 | int count = 0; |
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282 | int do_croak = 0; |
189 | aio_req req; |
283 | aio_req req; |
190 | |
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191 | { |
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192 | /* read and signals sent by the worker threads */ |
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193 | char buf [32]; |
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194 | while (read (respipe [0], buf, 32) > 0) |
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195 | ; |
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196 | } |
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197 | |
284 | |
198 | for (;;) |
285 | for (;;) |
199 | { |
286 | { |
200 | pthread_mutex_lock (&reslock); |
287 | pthread_mutex_lock (&reslock); |
201 | |
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202 | req = ress; |
288 | req = ress; |
203 | |
289 | |
204 | if (ress) |
290 | if (req) |
205 | { |
291 | { |
206 | ress = ress->next; |
292 | ress = req->next; |
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293 | |
207 | if (!ress) rese = 0; |
294 | if (!ress) |
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295 | { |
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296 | /* read any signals sent by the worker threads */ |
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297 | char buf [32]; |
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298 | while (read (respipe [0], buf, 32) == 32) |
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299 | ; |
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300 | |
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301 | rese = 0; |
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302 | } |
208 | } |
303 | } |
209 | |
304 | |
210 | pthread_mutex_unlock (&reslock); |
305 | pthread_mutex_unlock (&reslock); |
211 | |
306 | |
212 | if (!req) |
307 | if (!req) |
… | |
… | |
214 | |
309 | |
215 | nreqs--; |
310 | nreqs--; |
216 | |
311 | |
217 | if (req->type == REQ_QUIT) |
312 | if (req->type == REQ_QUIT) |
218 | started--; |
313 | started--; |
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314 | else if (req->type == REQ_GROUP && req->grp_next != req) |
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315 | { |
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316 | req->fd = 1; /* mark request as delayed */ |
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317 | continue; |
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318 | } |
219 | else |
319 | else |
220 | { |
320 | { |
221 | int errorno = errno; |
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222 | errno = req->errorno; |
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223 | |
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224 | if (req->type == REQ_READ) |
321 | if (req->type == REQ_READ) |
225 | SvCUR_set (req->data, req->dataoffset |
322 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
226 | + req->result > 0 ? req->result : 0); |
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227 | |
323 | |
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324 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
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325 | SvREADONLY_off (req->data); |
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326 | |
228 | if (req->data) |
327 | if (req->statdata) |
229 | SvREFCNT_dec (req->data); |
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230 | |
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231 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
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232 | { |
328 | { |
233 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
329 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
234 | PL_laststatval = req->result; |
330 | PL_laststatval = req->result; |
235 | PL_statcache = *(req->statdata); |
331 | PL_statcache = *(req->statdata); |
236 | |
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237 | Safefree (req->statdata); |
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238 | } |
332 | } |
239 | |
333 | |
240 | PUSHMARK (SP); |
334 | req_invoke (req); |
241 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
242 | |
335 | |
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++; |
336 | count++; |
267 | } |
337 | } |
268 | |
338 | |
269 | Safefree (req); |
339 | req_free (req); |
270 | } |
340 | } |
271 | |
341 | |
272 | return count; |
342 | return count; |
273 | } |
343 | } |
274 | |
344 | |
275 | static void * |
345 | static void *aio_proc(void *arg); |
|
|
346 | |
|
|
347 | static void start_thread (void) |
|
|
348 | { |
|
|
349 | sigset_t fullsigset, oldsigset; |
|
|
350 | pthread_t tid; |
|
|
351 | pthread_attr_t attr; |
|
|
352 | |
|
|
353 | pthread_attr_init (&attr); |
|
|
354 | pthread_attr_setstacksize (&attr, STACKSIZE); |
|
|
355 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
356 | |
|
|
357 | sigfillset (&fullsigset); |
|
|
358 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
|
|
359 | |
|
|
360 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
|
|
361 | started++; |
|
|
362 | |
|
|
363 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
364 | } |
|
|
365 | |
|
|
366 | static void req_send (aio_req req) |
|
|
367 | { |
|
|
368 | while (started < wanted && nreqs >= started) |
|
|
369 | start_thread (); |
|
|
370 | |
|
|
371 | nreqs++; |
|
|
372 | |
|
|
373 | pthread_mutex_lock (&reqlock); |
|
|
374 | |
|
|
375 | req->next = 0; |
|
|
376 | |
|
|
377 | if (reqe) |
|
|
378 | { |
|
|
379 | reqe->next = req; |
|
|
380 | reqe = req; |
|
|
381 | } |
|
|
382 | else |
|
|
383 | reqe = reqs = req; |
|
|
384 | |
|
|
385 | pthread_cond_signal (&reqwait); |
|
|
386 | pthread_mutex_unlock (&reqlock); |
|
|
387 | |
|
|
388 | if (nreqs > max_outstanding) |
|
|
389 | for (;;) |
|
|
390 | { |
|
|
391 | poll_cb (); |
|
|
392 | |
|
|
393 | if (nreqs <= max_outstanding) |
|
|
394 | break; |
|
|
395 | |
|
|
396 | poll_wait (); |
|
|
397 | } |
|
|
398 | } |
|
|
399 | |
|
|
400 | static void end_thread (void) |
|
|
401 | { |
|
|
402 | aio_req req; |
|
|
403 | Newz (0, req, 1, aio_cb); |
|
|
404 | req->type = REQ_QUIT; |
|
|
405 | |
|
|
406 | req_send (req); |
|
|
407 | } |
|
|
408 | |
|
|
409 | static void min_parallel (int nthreads) |
|
|
410 | { |
|
|
411 | if (wanted < nthreads) |
|
|
412 | wanted = nthreads; |
|
|
413 | } |
|
|
414 | |
|
|
415 | static void max_parallel (int nthreads) |
|
|
416 | { |
|
|
417 | int cur = started; |
|
|
418 | |
|
|
419 | if (wanted > nthreads) |
|
|
420 | wanted = nthreads; |
|
|
421 | |
|
|
422 | while (cur > wanted) |
|
|
423 | { |
|
|
424 | end_thread (); |
|
|
425 | cur--; |
|
|
426 | } |
|
|
427 | |
|
|
428 | while (started > wanted) |
|
|
429 | { |
|
|
430 | poll_wait (); |
|
|
431 | poll_cb (); |
|
|
432 | } |
|
|
433 | } |
|
|
434 | |
|
|
435 | static void create_pipe () |
|
|
436 | { |
|
|
437 | if (pipe (respipe)) |
|
|
438 | croak ("unable to initialize result pipe"); |
|
|
439 | |
|
|
440 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
|
|
441 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
442 | |
|
|
443 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
444 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
445 | } |
|
|
446 | |
|
|
447 | /*****************************************************************************/ |
|
|
448 | /* work around various missing functions */ |
|
|
449 | |
|
|
450 | #if !HAVE_PREADWRITE |
|
|
451 | # define pread aio_pread |
|
|
452 | # define pwrite aio_pwrite |
|
|
453 | |
|
|
454 | /* |
|
|
455 | * make our pread/pwrite safe against themselves, but not against |
|
|
456 | * normal read/write by using a mutex. slows down execution a lot, |
|
|
457 | * but that's your problem, not mine. |
|
|
458 | */ |
|
|
459 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
|
|
460 | |
|
|
461 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
|
|
462 | { |
|
|
463 | ssize_t res; |
|
|
464 | off_t ooffset; |
|
|
465 | |
|
|
466 | pthread_mutex_lock (&preadwritelock); |
|
|
467 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
468 | lseek (fd, offset, SEEK_SET); |
|
|
469 | res = read (fd, buf, count); |
|
|
470 | lseek (fd, ooffset, SEEK_SET); |
|
|
471 | pthread_mutex_unlock (&preadwritelock); |
|
|
472 | |
|
|
473 | return res; |
|
|
474 | } |
|
|
475 | |
|
|
476 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
|
|
477 | { |
|
|
478 | ssize_t res; |
|
|
479 | off_t ooffset; |
|
|
480 | |
|
|
481 | pthread_mutex_lock (&preadwritelock); |
|
|
482 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
483 | lseek (fd, offset, SEEK_SET); |
|
|
484 | res = write (fd, buf, count); |
|
|
485 | lseek (fd, offset, SEEK_SET); |
|
|
486 | pthread_mutex_unlock (&preadwritelock); |
|
|
487 | |
|
|
488 | return res; |
|
|
489 | } |
|
|
490 | #endif |
|
|
491 | |
|
|
492 | #if !HAVE_FDATASYNC |
|
|
493 | # define fdatasync fsync |
|
|
494 | #endif |
|
|
495 | |
|
|
496 | #if !HAVE_READAHEAD |
|
|
497 | # define readahead aio_readahead |
|
|
498 | |
|
|
499 | static ssize_t readahead (int fd, off_t offset, size_t count) |
|
|
500 | { |
|
|
501 | char readahead_buf[4096]; |
|
|
502 | |
|
|
503 | while (count > 0) |
|
|
504 | { |
|
|
505 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
|
|
506 | |
|
|
507 | pread (fd, readahead_buf, len, offset); |
|
|
508 | offset += len; |
|
|
509 | count -= len; |
|
|
510 | } |
|
|
511 | |
|
|
512 | errno = 0; |
|
|
513 | } |
|
|
514 | #endif |
|
|
515 | |
|
|
516 | #if !HAVE_READDIR_R |
|
|
517 | # define readdir_r aio_readdir_r |
|
|
518 | |
|
|
519 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
|
|
520 | |
|
|
521 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
522 | { |
|
|
523 | struct dirent *e; |
|
|
524 | int errorno; |
|
|
525 | |
|
|
526 | pthread_mutex_lock (&readdirlock); |
|
|
527 | |
|
|
528 | e = readdir (dirp); |
|
|
529 | errorno = errno; |
|
|
530 | |
|
|
531 | if (e) |
|
|
532 | { |
|
|
533 | *res = ent; |
|
|
534 | strcpy (ent->d_name, e->d_name); |
|
|
535 | } |
|
|
536 | else |
|
|
537 | *res = 0; |
|
|
538 | |
|
|
539 | pthread_mutex_unlock (&readdirlock); |
|
|
540 | |
|
|
541 | errno = errorno; |
|
|
542 | return e ? 0 : -1; |
|
|
543 | } |
|
|
544 | #endif |
|
|
545 | |
|
|
546 | /* sendfile always needs emulation */ |
|
|
547 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
|
|
548 | { |
|
|
549 | ssize_t res; |
|
|
550 | |
|
|
551 | if (!count) |
|
|
552 | return 0; |
|
|
553 | |
|
|
554 | #if HAVE_SENDFILE |
|
|
555 | # if __linux |
|
|
556 | res = sendfile (ofd, ifd, &offset, count); |
|
|
557 | |
|
|
558 | # elif __freebsd |
|
|
559 | /* |
|
|
560 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
561 | * wasted on making it similar to other I/O functions. |
|
|
562 | */ |
|
|
563 | { |
|
|
564 | off_t sbytes; |
|
|
565 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
566 | |
|
|
567 | if (res < 0 && sbytes) |
|
|
568 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
|
|
569 | res = sbytes; |
|
|
570 | } |
|
|
571 | |
|
|
572 | # elif __hpux |
|
|
573 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
574 | |
|
|
575 | # elif __solaris |
|
|
576 | { |
|
|
577 | struct sendfilevec vec; |
|
|
578 | size_t sbytes; |
|
|
579 | |
|
|
580 | vec.sfv_fd = ifd; |
|
|
581 | vec.sfv_flag = 0; |
|
|
582 | vec.sfv_off = offset; |
|
|
583 | vec.sfv_len = count; |
|
|
584 | |
|
|
585 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
586 | |
|
|
587 | if (res < 0 && sbytes) |
|
|
588 | res = sbytes; |
|
|
589 | } |
|
|
590 | |
|
|
591 | # endif |
|
|
592 | #else |
|
|
593 | res = -1; |
|
|
594 | errno = ENOSYS; |
|
|
595 | #endif |
|
|
596 | |
|
|
597 | if (res < 0 |
|
|
598 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
599 | #if __solaris |
|
|
600 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
601 | #endif |
|
|
602 | ) |
|
|
603 | ) |
|
|
604 | { |
|
|
605 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
606 | char buf[4096]; |
|
|
607 | res = 0; |
|
|
608 | |
|
|
609 | while (count) |
|
|
610 | { |
|
|
611 | ssize_t cnt; |
|
|
612 | |
|
|
613 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
|
|
614 | |
|
|
615 | if (cnt <= 0) |
|
|
616 | { |
|
|
617 | if (cnt && !res) res = -1; |
|
|
618 | break; |
|
|
619 | } |
|
|
620 | |
|
|
621 | cnt = write (ofd, buf, cnt); |
|
|
622 | |
|
|
623 | if (cnt <= 0) |
|
|
624 | { |
|
|
625 | if (cnt && !res) res = -1; |
|
|
626 | break; |
|
|
627 | } |
|
|
628 | |
|
|
629 | offset += cnt; |
|
|
630 | res += cnt; |
|
|
631 | count -= cnt; |
|
|
632 | } |
|
|
633 | } |
|
|
634 | |
|
|
635 | return res; |
|
|
636 | } |
|
|
637 | |
|
|
638 | /* read a full directory */ |
|
|
639 | static int scandir_ (const char *path, void **namesp) |
|
|
640 | { |
|
|
641 | DIR *dirp = opendir (path); |
|
|
642 | union |
|
|
643 | { |
|
|
644 | struct dirent d; |
|
|
645 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
646 | } u; |
|
|
647 | struct dirent *entp; |
|
|
648 | char *name, *names; |
|
|
649 | int memlen = 4096; |
|
|
650 | int memofs = 0; |
|
|
651 | int res = 0; |
|
|
652 | int errorno; |
|
|
653 | |
|
|
654 | if (!dirp) |
|
|
655 | return -1; |
|
|
656 | |
|
|
657 | names = malloc (memlen); |
|
|
658 | |
|
|
659 | for (;;) |
|
|
660 | { |
|
|
661 | errno = 0, readdir_r (dirp, &u.d, &entp); |
|
|
662 | |
|
|
663 | if (!entp) |
|
|
664 | break; |
|
|
665 | |
|
|
666 | name = entp->d_name; |
|
|
667 | |
|
|
668 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
669 | { |
|
|
670 | int len = strlen (name) + 1; |
|
|
671 | |
|
|
672 | res++; |
|
|
673 | |
|
|
674 | while (memofs + len > memlen) |
|
|
675 | { |
|
|
676 | memlen *= 2; |
|
|
677 | names = realloc (names, memlen); |
|
|
678 | if (!names) |
|
|
679 | break; |
|
|
680 | } |
|
|
681 | |
|
|
682 | memcpy (names + memofs, name, len); |
|
|
683 | memofs += len; |
|
|
684 | } |
|
|
685 | } |
|
|
686 | |
|
|
687 | errorno = errno; |
|
|
688 | closedir (dirp); |
|
|
689 | |
|
|
690 | if (errorno) |
|
|
691 | { |
|
|
692 | free (names); |
|
|
693 | errno = errorno; |
|
|
694 | res = -1; |
|
|
695 | } |
|
|
696 | |
|
|
697 | *namesp = (void *)names; |
|
|
698 | return res; |
|
|
699 | } |
|
|
700 | |
|
|
701 | /*****************************************************************************/ |
|
|
702 | |
276 | aio_proc (void *thr_arg) |
703 | static void *aio_proc (void *thr_arg) |
277 | { |
704 | { |
278 | aio_req req; |
705 | aio_req req; |
279 | int type; |
706 | int type; |
280 | |
707 | |
281 | do |
708 | do |
… | |
… | |
300 | |
727 | |
301 | pthread_mutex_unlock (&reqlock); |
728 | pthread_mutex_unlock (&reqlock); |
302 | |
729 | |
303 | errno = 0; /* strictly unnecessary */ |
730 | errno = 0; /* strictly unnecessary */ |
304 | |
731 | |
305 | type = req->type; |
732 | if (!req->cancelled) |
306 | |
|
|
307 | switch (type) |
733 | switch (req->type) |
308 | { |
734 | { |
309 | case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break; |
735 | 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; |
736 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
311 | #if SYS_readahead |
737 | |
312 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
738 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
313 | #else |
739 | 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 | |
740 | |
317 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
741 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
318 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
742 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
319 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
743 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
320 | |
744 | |
321 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
745 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
322 | case REQ_CLOSE: req->result = close (req->fd); break; |
746 | case REQ_CLOSE: req->result = close (req->fd); break; |
323 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
747 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
324 | |
|
|
325 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
748 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
749 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
|
|
750 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
|
|
751 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
|
|
752 | |
326 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
753 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
|
|
754 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
755 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
327 | |
756 | |
|
|
757 | case REQ_SLEEP: |
|
|
758 | { |
|
|
759 | struct timeval tv; |
|
|
760 | |
|
|
761 | tv.tv_sec = req->fd; |
|
|
762 | tv.tv_usec = req->fd2; |
|
|
763 | |
|
|
764 | req->result = select (0, 0, 0, 0, &tv); |
|
|
765 | } |
|
|
766 | |
328 | case REQ_QUIT: |
767 | case REQ_QUIT: |
329 | break; |
768 | break; |
330 | |
769 | |
331 | default: |
770 | default: |
332 | req->result = ENOSYS; |
771 | req->result = ENOSYS; |
333 | break; |
772 | break; |
334 | } |
773 | } |
335 | |
774 | |
336 | req->errorno = errno; |
775 | req->errorno = errno; |
337 | |
776 | |
338 | pthread_mutex_lock (&reslock); |
777 | pthread_mutex_lock (&reslock); |
339 | |
778 | |
… | |
… | |
357 | while (type != REQ_QUIT); |
796 | while (type != REQ_QUIT); |
358 | |
797 | |
359 | return 0; |
798 | return 0; |
360 | } |
799 | } |
361 | |
800 | |
|
|
801 | /*****************************************************************************/ |
|
|
802 | |
|
|
803 | static void atfork_prepare (void) |
|
|
804 | { |
|
|
805 | pthread_mutex_lock (&reqlock); |
|
|
806 | pthread_mutex_lock (&reslock); |
|
|
807 | #if !HAVE_PREADWRITE |
|
|
808 | pthread_mutex_lock (&preadwritelock); |
|
|
809 | #endif |
|
|
810 | #if !HAVE_READDIR_R |
|
|
811 | pthread_mutex_lock (&readdirlock); |
|
|
812 | #endif |
|
|
813 | } |
|
|
814 | |
|
|
815 | static void atfork_parent (void) |
|
|
816 | { |
|
|
817 | #if !HAVE_READDIR_R |
|
|
818 | pthread_mutex_unlock (&readdirlock); |
|
|
819 | #endif |
|
|
820 | #if !HAVE_PREADWRITE |
|
|
821 | pthread_mutex_unlock (&preadwritelock); |
|
|
822 | #endif |
|
|
823 | pthread_mutex_unlock (&reslock); |
|
|
824 | pthread_mutex_unlock (&reqlock); |
|
|
825 | } |
|
|
826 | |
|
|
827 | static void atfork_child (void) |
|
|
828 | { |
|
|
829 | aio_req prv; |
|
|
830 | |
|
|
831 | started = 0; |
|
|
832 | |
|
|
833 | while (reqs) |
|
|
834 | { |
|
|
835 | prv = reqs; |
|
|
836 | reqs = prv->next; |
|
|
837 | req_free (prv); |
|
|
838 | } |
|
|
839 | |
|
|
840 | reqs = reqe = 0; |
|
|
841 | |
|
|
842 | while (ress) |
|
|
843 | { |
|
|
844 | prv = ress; |
|
|
845 | ress = prv->next; |
|
|
846 | req_free (prv); |
|
|
847 | } |
|
|
848 | |
|
|
849 | ress = rese = 0; |
|
|
850 | |
|
|
851 | close (respipe [0]); |
|
|
852 | close (respipe [1]); |
|
|
853 | create_pipe (); |
|
|
854 | |
|
|
855 | atfork_parent (); |
|
|
856 | } |
|
|
857 | |
|
|
858 | #define dREQ \ |
|
|
859 | aio_req req; \ |
|
|
860 | \ |
|
|
861 | if (SvOK (callback) && !SvROK (callback)) \ |
|
|
862 | croak ("callback must be undef or of reference type"); \ |
|
|
863 | \ |
|
|
864 | Newz (0, req, 1, aio_cb); \ |
|
|
865 | if (!req) \ |
|
|
866 | croak ("out of memory during aio_req allocation"); \ |
|
|
867 | \ |
|
|
868 | req->callback = newSVsv (callback) |
|
|
869 | |
|
|
870 | #define REQ_SEND \ |
|
|
871 | req_send (req); \ |
|
|
872 | \ |
|
|
873 | if (GIMME_V != G_VOID) \ |
|
|
874 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
|
|
875 | |
362 | MODULE = IO::AIO PACKAGE = IO::AIO |
876 | MODULE = IO::AIO PACKAGE = IO::AIO |
363 | |
877 | |
|
|
878 | PROTOTYPES: ENABLE |
|
|
879 | |
364 | BOOT: |
880 | BOOT: |
365 | { |
881 | { |
366 | if (pipe (respipe)) |
882 | HV *stash = gv_stashpv ("IO::AIO", 1); |
367 | croak ("unable to initialize result pipe"); |
883 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
884 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
885 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
368 | |
886 | |
369 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
887 | create_pipe (); |
370 | croak ("cannot set result pipe to nonblocking mode"); |
888 | 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 | } |
889 | } |
375 | |
890 | |
376 | void |
891 | void |
377 | min_parallel(nthreads) |
892 | min_parallel (nthreads) |
378 | int nthreads |
893 | int nthreads |
379 | PROTOTYPE: $ |
894 | PROTOTYPE: $ |
380 | CODE: |
|
|
381 | while (nthreads > started) |
|
|
382 | start_thread (); |
|
|
383 | |
895 | |
384 | void |
896 | void |
385 | max_parallel(nthreads) |
897 | max_parallel (nthreads) |
386 | int nthreads |
898 | int nthreads |
387 | PROTOTYPE: $ |
899 | PROTOTYPE: $ |
|
|
900 | |
|
|
901 | int |
|
|
902 | max_outstanding (nreqs) |
|
|
903 | int nreqs |
|
|
904 | PROTOTYPE: $ |
388 | CODE: |
905 | CODE: |
389 | { |
906 | RETVAL = max_outstanding; |
390 | int cur = started; |
907 | max_outstanding = nreqs; |
391 | while (cur > nthreads) |
|
|
392 | { |
|
|
393 | end_thread (); |
|
|
394 | cur--; |
|
|
395 | } |
|
|
396 | |
908 | |
397 | while (started > nthreads) |
|
|
398 | { |
|
|
399 | poll_wait (); |
|
|
400 | poll_cb (aTHX); |
|
|
401 | } |
|
|
402 | } |
|
|
403 | |
|
|
404 | void |
909 | void |
405 | aio_open(pathname,flags,mode,callback) |
910 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
406 | SV * pathname |
911 | SV * pathname |
407 | int flags |
912 | int flags |
408 | int mode |
913 | int mode |
409 | SV * callback |
914 | SV * callback |
410 | PROTOTYPE: $$$$ |
915 | PROTOTYPE: $$$;$ |
411 | CODE: |
916 | PPCODE: |
412 | { |
917 | { |
413 | aio_req req; |
918 | dREQ; |
414 | |
|
|
415 | Newz (0, req, 1, aio_cb); |
|
|
416 | |
|
|
417 | if (!req) |
|
|
418 | croak ("out of memory during aio_req allocation"); |
|
|
419 | |
919 | |
420 | req->type = REQ_OPEN; |
920 | req->type = REQ_OPEN; |
421 | req->data = newSVsv (pathname); |
921 | req->data = newSVsv (pathname); |
422 | req->dataptr = SvPV_nolen (req->data); |
922 | req->dataptr = SvPVbyte_nolen (req->data); |
423 | req->fd = flags; |
923 | req->fd = flags; |
424 | req->mode = mode; |
924 | req->mode = mode; |
425 | req->callback = SvREFCNT_inc (callback); |
|
|
426 | |
925 | |
427 | send_req (req); |
926 | REQ_SEND; |
428 | } |
927 | } |
429 | |
928 | |
430 | void |
929 | void |
431 | aio_close(fh,callback) |
930 | aio_close (fh,callback=&PL_sv_undef) |
432 | InputStream fh |
931 | SV * fh |
433 | SV * callback |
932 | SV * callback |
434 | PROTOTYPE: $$ |
933 | PROTOTYPE: $;$ |
435 | ALIAS: |
934 | ALIAS: |
436 | aio_close = REQ_CLOSE |
935 | aio_close = REQ_CLOSE |
437 | aio_fsync = REQ_FSYNC |
936 | aio_fsync = REQ_FSYNC |
438 | aio_fdatasync = REQ_FDATASYNC |
937 | aio_fdatasync = REQ_FDATASYNC |
439 | CODE: |
938 | PPCODE: |
|
|
939 | { |
|
|
940 | dREQ; |
|
|
941 | |
|
|
942 | req->type = ix; |
|
|
943 | req->fh = newSVsv (fh); |
|
|
944 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
|
|
945 | |
|
|
946 | REQ_SEND (req); |
|
|
947 | } |
|
|
948 | |
|
|
949 | void |
|
|
950 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
|
|
951 | SV * fh |
|
|
952 | UV offset |
|
|
953 | UV length |
|
|
954 | SV * data |
|
|
955 | UV dataoffset |
|
|
956 | SV * callback |
|
|
957 | ALIAS: |
|
|
958 | aio_read = REQ_READ |
|
|
959 | aio_write = REQ_WRITE |
|
|
960 | PROTOTYPE: $$$$$;$ |
|
|
961 | PPCODE: |
440 | { |
962 | { |
441 | aio_req req; |
963 | aio_req req; |
|
|
964 | STRLEN svlen; |
|
|
965 | char *svptr = SvPVbyte (data, svlen); |
442 | |
966 | |
443 | Newz (0, req, 1, aio_cb); |
967 | SvUPGRADE (data, SVt_PV); |
|
|
968 | SvPOK_on (data); |
444 | |
969 | |
445 | if (!req) |
970 | if (dataoffset < 0) |
446 | croak ("out of memory during aio_req allocation"); |
971 | dataoffset += svlen; |
447 | |
972 | |
448 | req->type = ix; |
973 | if (dataoffset < 0 || dataoffset > svlen) |
449 | req->fd = PerlIO_fileno (fh); |
974 | croak ("data offset outside of string"); |
450 | req->callback = SvREFCNT_inc (callback); |
|
|
451 | |
975 | |
452 | send_req (req); |
976 | if (ix == REQ_WRITE) |
453 | } |
977 | { |
454 | |
978 | /* write: check length and adjust. */ |
455 | void |
979 | if (length < 0 || length + dataoffset > svlen) |
456 | aio_read(fh,offset,length,data,dataoffset,callback) |
980 | length = svlen - dataoffset; |
457 | InputStream fh |
981 | } |
458 | UV offset |
982 | else |
459 | IV length |
983 | { |
460 | SV * data |
984 | /* read: grow scalar as necessary */ |
461 | IV dataoffset |
985 | svptr = SvGROW (data, length + dataoffset); |
462 | SV * callback |
986 | } |
463 | PROTOTYPE: $$$$$$ |
|
|
464 | CODE: |
|
|
465 | read_write (aTHX_ 0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
466 | |
|
|
467 | void |
|
|
468 | aio_write(fh,offset,length,data,dataoffset,callback) |
|
|
469 | OutputStream fh |
|
|
470 | UV offset |
|
|
471 | IV length |
|
|
472 | SV * data |
|
|
473 | IV dataoffset |
|
|
474 | SV * callback |
|
|
475 | PROTOTYPE: $$$$$$ |
|
|
476 | CODE: |
|
|
477 | read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
478 | |
|
|
479 | void |
|
|
480 | aio_readahead(fh,offset,length,callback) |
|
|
481 | InputStream fh |
|
|
482 | UV offset |
|
|
483 | IV length |
|
|
484 | SV * callback |
|
|
485 | PROTOTYPE: $$$$ |
|
|
486 | CODE: |
|
|
487 | { |
|
|
488 | aio_req req; |
|
|
489 | |
987 | |
490 | if (length < 0) |
988 | if (length < 0) |
491 | croak ("length must not be negative"); |
989 | croak ("length must not be negative"); |
492 | |
990 | |
493 | Newz (0, req, 1, aio_cb); |
991 | { |
|
|
992 | dREQ; |
494 | |
993 | |
495 | if (!req) |
994 | req->type = ix; |
496 | croak ("out of memory during aio_req allocation"); |
995 | req->fh = newSVsv (fh); |
|
|
996 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
|
|
997 | : IoOFP (sv_2io (fh))); |
|
|
998 | req->offset = offset; |
|
|
999 | req->length = length; |
|
|
1000 | req->data = SvREFCNT_inc (data); |
|
|
1001 | req->dataptr = (char *)svptr + dataoffset; |
|
|
1002 | |
|
|
1003 | if (!SvREADONLY (data)) |
|
|
1004 | { |
|
|
1005 | SvREADONLY_on (data); |
|
|
1006 | req->data2ptr = (void *)data; |
|
|
1007 | } |
|
|
1008 | |
|
|
1009 | REQ_SEND; |
|
|
1010 | } |
|
|
1011 | } |
|
|
1012 | |
|
|
1013 | void |
|
|
1014 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
|
|
1015 | SV * out_fh |
|
|
1016 | SV * in_fh |
|
|
1017 | UV in_offset |
|
|
1018 | UV length |
|
|
1019 | SV * callback |
|
|
1020 | PROTOTYPE: $$$$;$ |
|
|
1021 | PPCODE: |
|
|
1022 | { |
|
|
1023 | dREQ; |
|
|
1024 | |
|
|
1025 | req->type = REQ_SENDFILE; |
|
|
1026 | req->fh = newSVsv (out_fh); |
|
|
1027 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
1028 | req->fh2 = newSVsv (in_fh); |
|
|
1029 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
1030 | req->offset = in_offset; |
|
|
1031 | req->length = length; |
|
|
1032 | |
|
|
1033 | REQ_SEND; |
|
|
1034 | } |
|
|
1035 | |
|
|
1036 | void |
|
|
1037 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
|
|
1038 | SV * fh |
|
|
1039 | UV offset |
|
|
1040 | IV length |
|
|
1041 | SV * callback |
|
|
1042 | PROTOTYPE: $$$;$ |
|
|
1043 | PPCODE: |
|
|
1044 | { |
|
|
1045 | dREQ; |
497 | |
1046 | |
498 | req->type = REQ_READAHEAD; |
1047 | req->type = REQ_READAHEAD; |
|
|
1048 | req->fh = newSVsv (fh); |
499 | req->fd = PerlIO_fileno (fh); |
1049 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
500 | req->offset = offset; |
1050 | req->offset = offset; |
501 | req->length = length; |
1051 | req->length = length; |
502 | req->callback = SvREFCNT_inc (callback); |
|
|
503 | |
1052 | |
504 | send_req (req); |
1053 | REQ_SEND; |
505 | } |
1054 | } |
506 | |
1055 | |
507 | void |
1056 | void |
508 | aio_stat(fh_or_path,callback) |
1057 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
509 | SV * fh_or_path |
1058 | SV * fh_or_path |
510 | SV * callback |
1059 | SV * callback |
511 | PROTOTYPE: $$ |
|
|
512 | ALIAS: |
1060 | ALIAS: |
|
|
1061 | aio_stat = REQ_STAT |
513 | aio_lstat = 1 |
1062 | aio_lstat = REQ_LSTAT |
514 | CODE: |
1063 | PPCODE: |
515 | { |
1064 | { |
516 | aio_req req; |
1065 | dREQ; |
517 | |
|
|
518 | Newz (0, req, 1, aio_cb); |
|
|
519 | |
|
|
520 | if (!req) |
|
|
521 | croak ("out of memory during aio_req allocation"); |
|
|
522 | |
1066 | |
523 | New (0, req->statdata, 1, Stat_t); |
1067 | New (0, req->statdata, 1, Stat_t); |
524 | |
|
|
525 | if (!req->statdata) |
1068 | if (!req->statdata) |
|
|
1069 | { |
|
|
1070 | req_free (req); |
526 | croak ("out of memory during aio_req->statdata allocation"); |
1071 | croak ("out of memory during aio_req->statdata allocation"); |
|
|
1072 | } |
527 | |
1073 | |
528 | if (SvPOK (fh_or_path)) |
1074 | if (SvPOK (fh_or_path)) |
529 | { |
1075 | { |
530 | req->type = ix ? REQ_LSTAT : REQ_STAT; |
1076 | req->type = ix; |
531 | req->data = newSVsv (fh_or_path); |
1077 | req->data = newSVsv (fh_or_path); |
532 | req->dataptr = SvPV_nolen (req->data); |
1078 | req->dataptr = SvPVbyte_nolen (req->data); |
533 | } |
1079 | } |
534 | else |
1080 | else |
535 | { |
1081 | { |
536 | req->type = REQ_FSTAT; |
1082 | req->type = REQ_FSTAT; |
|
|
1083 | req->fh = newSVsv (fh_or_path); |
537 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1084 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
538 | } |
1085 | } |
539 | |
1086 | |
540 | req->callback = SvREFCNT_inc (callback); |
1087 | REQ_SEND; |
541 | |
|
|
542 | send_req (req); |
|
|
543 | } |
1088 | } |
544 | |
1089 | |
545 | void |
1090 | void |
546 | aio_unlink(pathname,callback) |
1091 | aio_unlink (pathname,callback=&PL_sv_undef) |
547 | SV * pathname |
1092 | SV * pathname |
548 | SV * callback |
1093 | SV * callback |
|
|
1094 | ALIAS: |
|
|
1095 | aio_unlink = REQ_UNLINK |
|
|
1096 | aio_rmdir = REQ_RMDIR |
|
|
1097 | aio_readdir = REQ_READDIR |
|
|
1098 | PPCODE: |
|
|
1099 | { |
|
|
1100 | dREQ; |
|
|
1101 | |
|
|
1102 | req->type = ix; |
|
|
1103 | req->data = newSVsv (pathname); |
|
|
1104 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1105 | |
|
|
1106 | REQ_SEND; |
|
|
1107 | } |
|
|
1108 | |
|
|
1109 | void |
|
|
1110 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
|
|
1111 | SV * oldpath |
|
|
1112 | SV * newpath |
|
|
1113 | SV * callback |
|
|
1114 | ALIAS: |
|
|
1115 | aio_link = REQ_LINK |
|
|
1116 | aio_symlink = REQ_SYMLINK |
|
|
1117 | aio_rename = REQ_RENAME |
|
|
1118 | PPCODE: |
|
|
1119 | { |
|
|
1120 | dREQ; |
|
|
1121 | |
|
|
1122 | req->type = ix; |
|
|
1123 | req->fh = newSVsv (oldpath); |
|
|
1124 | req->data2ptr = SvPVbyte_nolen (req->fh); |
|
|
1125 | req->data = newSVsv (newpath); |
|
|
1126 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1127 | |
|
|
1128 | REQ_SEND; |
|
|
1129 | } |
|
|
1130 | |
|
|
1131 | void |
|
|
1132 | aio_sleep (delay,callback=&PL_sv_undef) |
|
|
1133 | double delay |
|
|
1134 | SV * callback |
|
|
1135 | PPCODE: |
|
|
1136 | { |
|
|
1137 | dREQ; |
|
|
1138 | |
|
|
1139 | req->type = REQ_SLEEP; |
|
|
1140 | req->fd = delay < 0. ? 0 : delay; |
|
|
1141 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
|
|
1142 | |
|
|
1143 | REQ_SEND; |
|
|
1144 | } |
|
|
1145 | |
|
|
1146 | void |
|
|
1147 | aio_group (callback=&PL_sv_undef) |
|
|
1148 | SV * callback |
549 | PROTOTYPE: $$ |
1149 | PROTOTYPE: ;$ |
|
|
1150 | PPCODE: |
|
|
1151 | { |
|
|
1152 | dREQ; |
|
|
1153 | req->type = REQ_GROUP; |
|
|
1154 | req->grp_next = req; |
|
|
1155 | req->grp_prev = req; |
|
|
1156 | |
|
|
1157 | req_send (req); |
|
|
1158 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1159 | } |
|
|
1160 | |
|
|
1161 | void |
|
|
1162 | flush () |
|
|
1163 | PROTOTYPE: |
550 | CODE: |
1164 | CODE: |
551 | { |
1165 | while (nreqs) |
552 | aio_req req; |
1166 | { |
553 | |
1167 | poll_wait (); |
554 | Newz (0, req, 1, aio_cb); |
1168 | poll_cb (); |
555 | |
1169 | } |
556 | if (!req) |
1170 | |
557 | croak ("out of memory during aio_req allocation"); |
1171 | void |
558 | |
1172 | poll() |
559 | req->type = REQ_UNLINK; |
1173 | PROTOTYPE: |
560 | req->data = newSVsv (pathname); |
1174 | CODE: |
561 | req->dataptr = SvPV_nolen (req->data); |
1175 | if (nreqs) |
562 | req->callback = SvREFCNT_inc (callback); |
1176 | { |
563 | |
1177 | poll_wait (); |
564 | send_req (req); |
1178 | poll_cb (); |
565 | } |
1179 | } |
566 | |
1180 | |
567 | int |
1181 | int |
568 | poll_fileno() |
1182 | poll_fileno() |
569 | PROTOTYPE: |
1183 | PROTOTYPE: |
570 | CODE: |
1184 | CODE: |
… | |
… | |
574 | |
1188 | |
575 | int |
1189 | int |
576 | poll_cb(...) |
1190 | poll_cb(...) |
577 | PROTOTYPE: |
1191 | PROTOTYPE: |
578 | CODE: |
1192 | CODE: |
579 | RETVAL = poll_cb (aTHX); |
1193 | RETVAL = poll_cb (); |
580 | OUTPUT: |
1194 | OUTPUT: |
581 | RETVAL |
1195 | RETVAL |
582 | |
1196 | |
583 | void |
1197 | void |
584 | poll_wait() |
1198 | poll_wait() |
… | |
… | |
593 | CODE: |
1207 | CODE: |
594 | RETVAL = nreqs; |
1208 | RETVAL = nreqs; |
595 | OUTPUT: |
1209 | OUTPUT: |
596 | RETVAL |
1210 | RETVAL |
597 | |
1211 | |
|
|
1212 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1213 | |
|
|
1214 | void |
|
|
1215 | cancel (aio_req_ornot req) |
|
|
1216 | PROTOTYPE: |
|
|
1217 | CODE: |
|
|
1218 | req_cancel (req); |
|
|
1219 | |
|
|
1220 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1221 | |
|
|
1222 | void |
|
|
1223 | add (aio_req grp, ...) |
|
|
1224 | PROTOTYPE: $;@ |
|
|
1225 | PPCODE: |
|
|
1226 | { |
|
|
1227 | int i; |
|
|
1228 | |
|
|
1229 | for (i = 1; i < items; ++i ) |
|
|
1230 | { |
|
|
1231 | if (GIMME_V != G_VOID) |
|
|
1232 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1233 | |
|
|
1234 | aio_req req = SvAIO_REQ (ST (i)); |
|
|
1235 | printf ("req = %p\n", req);//D |
|
|
1236 | |
|
|
1237 | if (req) |
|
|
1238 | { |
|
|
1239 | req->grp_prev = grp; |
|
|
1240 | req->grp_next = grp->grp_next; |
|
|
1241 | grp->grp_next->grp_prev = req; |
|
|
1242 | grp->grp_next = req; |
|
|
1243 | |
|
|
1244 | req->grp = grp; |
|
|
1245 | } |
|
|
1246 | } |
|
|
1247 | } |
|
|
1248 | |