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1 | #define _REENTRANT 1 |
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2 | #include <errno.h> |
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3 | |
1 | #include "EXTERN.h" |
4 | #include "EXTERN.h" |
2 | #include "perl.h" |
5 | #include "perl.h" |
3 | #include "XSUB.h" |
6 | #include "XSUB.h" |
4 | |
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> |
5 | #include <sys/types.h> |
14 | #include <sys/types.h> |
6 | #include <sys/stat.h> |
15 | #include <sys/stat.h> |
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16 | #include <limits.h> |
7 | #include <unistd.h> |
17 | #include <unistd.h> |
8 | #include <fcntl.h> |
18 | #include <fcntl.h> |
9 | #include <signal.h> |
19 | #include <signal.h> |
10 | #include <sched.h> |
20 | #include <sched.h> |
11 | |
21 | |
12 | #include <pthread.h> |
22 | #if HAVE_SENDFILE |
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23 | # if __linux |
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24 | # include <sys/sendfile.h> |
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25 | # elif __freebsd |
13 | #include <sys/syscall.h> |
26 | # include <sys/socket.h> |
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27 | # include <sys/uio.h> |
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28 | # elif __hpux |
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29 | # include <sys/socket.h> |
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30 | # elif __solaris /* not yet */ |
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31 | # include <sys/sendfile.h> |
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32 | # else |
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33 | # error sendfile support requested but not available |
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34 | # endif |
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35 | #endif |
14 | |
36 | |
15 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
37 | /* used for struct dirent, AIX doesn't provide it */ |
16 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
38 | #ifndef NAME_MAX |
17 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
39 | # define NAME_MAX 4096 |
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40 | #endif |
18 | |
41 | |
19 | #if __ia64 |
42 | #if __ia64 |
20 | # define STACKSIZE 65536 |
43 | # define STACKSIZE 65536 |
21 | #else |
44 | #else |
22 | # define STACKSIZE 4096 |
45 | # define STACKSIZE 8192 |
23 | #endif |
46 | #endif |
24 | |
47 | |
25 | enum { |
48 | enum { |
26 | REQ_QUIT, |
49 | REQ_QUIT, |
27 | REQ_OPEN, REQ_CLOSE, |
50 | REQ_OPEN, REQ_CLOSE, |
28 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
51 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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52 | REQ_SENDFILE, |
29 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
53 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
30 | REQ_FSYNC, REQ_FDATASYNC, |
54 | REQ_FSYNC, REQ_FDATASYNC, |
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55 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
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56 | REQ_READDIR, |
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57 | REQ_LINK, REQ_SYMLINK, |
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58 | REQ_GROUP, |
31 | }; |
59 | }; |
32 | |
60 | |
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61 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
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62 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
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63 | |
33 | typedef struct aio_cb { |
64 | typedef struct aio_cb |
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65 | { |
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66 | struct aio_cb *grp, *grp_prev, *grp_next; |
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67 | |
34 | struct aio_cb *volatile next; |
68 | struct aio_cb *volatile next; |
35 | |
69 | |
36 | int type; |
70 | SV *self; /* the perl counterpart of this request, if any */ |
37 | |
71 | |
38 | int fd; |
72 | SV *data, *callback; |
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73 | SV *fh, *fh2; |
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74 | void *dataptr, *data2ptr; |
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75 | Stat_t *statdata; |
39 | off_t offset; |
76 | off_t offset; |
40 | size_t length; |
77 | size_t length; |
41 | ssize_t result; |
78 | ssize_t result; |
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79 | |
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80 | int type; |
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81 | int fd, fd2; |
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82 | int errorno; |
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83 | STRLEN dataoffset; |
42 | mode_t mode; /* open */ |
84 | mode_t mode; /* open */ |
43 | int errorno; |
85 | unsigned char cancelled; |
44 | SV *data, *callback; |
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45 | void *dataptr; |
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46 | STRLEN dataoffset; |
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47 | |
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48 | Stat_t *statdata; |
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49 | } aio_cb; |
86 | } aio_cb; |
50 | |
87 | |
51 | typedef aio_cb *aio_req; |
88 | typedef aio_cb *aio_req; |
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89 | typedef aio_cb *aio_req_ornot; |
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90 | typedef aio_cb *aio_group; |
52 | |
91 | |
53 | static int started; |
92 | static int started, wanted; |
54 | static int nreqs; |
93 | static volatile int nreqs; |
55 | static int max_outstanding = 1<<30; |
94 | static int max_outstanding = 1<<30; |
56 | static int respipe [2]; |
95 | static int respipe [2]; |
57 | |
96 | |
58 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
97 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
59 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
98 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
60 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
99 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
61 | |
100 | |
62 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
101 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
63 | static volatile aio_req ress, rese; /* queue start, queue end */ |
102 | static volatile aio_req ress, rese; /* queue start, queue end */ |
64 | |
103 | |
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104 | /* must be called at most once */ |
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105 | static SV *req_sv (aio_req req, const char *klass) |
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106 | { |
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107 | req->self = (SV *)newHV (); |
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108 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
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109 | |
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110 | return sv_2mortal (sv_bless (newRV_noinc (req->self), gv_stashpv (klass, 1))); |
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111 | } |
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112 | |
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113 | static aio_req SvAIO_REQ (SV *sv, const char *klass) |
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114 | { |
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115 | if (!sv_derived_from (sv, klass) || !SvROK (sv)) |
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116 | croak ("object of class %s expected", klass); |
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117 | |
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118 | MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
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119 | |
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120 | return mg ? (aio_req)mg->mg_ptr : 0; |
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121 | } |
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122 | |
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123 | static void req_free (aio_req req) |
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124 | { |
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125 | if (req->self) |
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126 | { |
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127 | sv_unmagic (req->self, PERL_MAGIC_ext); |
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128 | SvREFCNT_dec (req->self); |
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129 | } |
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130 | |
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131 | if (req->data) |
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132 | SvREFCNT_dec (req->data); |
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133 | |
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134 | if (req->fh) |
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135 | SvREFCNT_dec (req->fh); |
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136 | |
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137 | if (req->fh2) |
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138 | SvREFCNT_dec (req->fh2); |
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139 | |
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140 | if (req->statdata) |
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141 | Safefree (req->statdata); |
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142 | |
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143 | if (req->callback) |
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144 | SvREFCNT_dec (req->callback); |
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145 | |
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146 | if (req->type == REQ_READDIR && req->result >= 0) |
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147 | free (req->data2ptr); |
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148 | |
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149 | Safefree (req); |
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150 | } |
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151 | |
65 | static void |
152 | static void |
66 | poll_wait () |
153 | poll_wait () |
67 | { |
154 | { |
68 | if (!nreqs) |
155 | if (nreqs && !ress) |
69 | return; |
156 | { |
70 | |
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71 | fd_set rfd; |
157 | fd_set rfd; |
72 | FD_ZERO(&rfd); |
158 | FD_ZERO(&rfd); |
73 | FD_SET(respipe [0], &rfd); |
159 | FD_SET(respipe [0], &rfd); |
74 | |
160 | |
75 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
161 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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162 | } |
76 | } |
163 | } |
77 | |
164 | |
78 | static int |
165 | static int |
79 | poll_cb () |
166 | poll_cb () |
80 | { |
167 | { |
81 | dSP; |
168 | dSP; |
82 | int count = 0; |
169 | int count = 0; |
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170 | int do_croak = 0; |
83 | aio_req req; |
171 | aio_req req; |
84 | |
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85 | { |
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86 | /* read and signals sent by the worker threads */ |
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87 | char buf [32]; |
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88 | while (read (respipe [0], buf, 32) > 0) |
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89 | ; |
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90 | } |
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91 | |
172 | |
92 | for (;;) |
173 | for (;;) |
93 | { |
174 | { |
94 | pthread_mutex_lock (&reslock); |
175 | pthread_mutex_lock (&reslock); |
95 | |
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96 | req = ress; |
176 | req = ress; |
97 | |
177 | |
98 | if (ress) |
178 | if (req) |
99 | { |
179 | { |
100 | ress = ress->next; |
180 | ress = req->next; |
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181 | |
101 | if (!ress) rese = 0; |
182 | if (!ress) |
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183 | { |
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184 | /* read any signals sent by the worker threads */ |
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185 | char buf [32]; |
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186 | while (read (respipe [0], buf, 32) == 32) |
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187 | ; |
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188 | |
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189 | rese = 0; |
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190 | } |
102 | } |
191 | } |
103 | |
192 | |
104 | pthread_mutex_unlock (&reslock); |
193 | pthread_mutex_unlock (&reslock); |
105 | |
194 | |
106 | if (!req) |
195 | if (!req) |
… | |
… | |
114 | { |
203 | { |
115 | int errorno = errno; |
204 | int errorno = errno; |
116 | errno = req->errorno; |
205 | errno = req->errorno; |
117 | |
206 | |
118 | if (req->type == REQ_READ) |
207 | if (req->type == REQ_READ) |
119 | SvCUR_set (req->data, req->dataoffset |
208 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
120 | + req->result > 0 ? req->result : 0); |
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121 | |
209 | |
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210 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
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211 | SvREADONLY_off (req->data); |
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212 | |
122 | if (req->data) |
213 | if (req->statdata) |
123 | SvREFCNT_dec (req->data); |
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124 | |
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125 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
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126 | { |
214 | { |
127 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
215 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
128 | PL_laststatval = req->result; |
216 | PL_laststatval = req->result; |
129 | PL_statcache = *(req->statdata); |
217 | PL_statcache = *(req->statdata); |
130 | |
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131 | Safefree (req->statdata); |
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132 | } |
218 | } |
133 | |
219 | |
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220 | ENTER; |
134 | PUSHMARK (SP); |
221 | PUSHMARK (SP); |
135 | XPUSHs (sv_2mortal (newSViv (req->result))); |
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136 | |
222 | |
137 | if (req->type == REQ_OPEN) |
223 | if (req->type == REQ_READDIR) |
138 | { |
224 | { |
139 | /* convert fd to fh */ |
225 | SV *rv = &PL_sv_undef; |
140 | SV *fh; |
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141 | |
226 | |
142 | PUTBACK; |
227 | if (req->result >= 0) |
143 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
228 | { |
144 | SPAGAIN; |
229 | char *buf = req->data2ptr; |
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230 | AV *av = newAV (); |
145 | |
231 | |
146 | fh = POPs; |
232 | while (req->result) |
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233 | { |
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234 | SV *sv = newSVpv (buf, 0); |
147 | |
235 | |
148 | PUSHMARK (SP); |
236 | av_push (av, sv); |
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237 | buf += SvCUR (sv) + 1; |
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238 | req->result--; |
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239 | } |
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240 | |
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241 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
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242 | } |
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243 | |
149 | XPUSHs (fh); |
244 | XPUSHs (rv); |
150 | } |
245 | } |
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246 | else |
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247 | { |
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248 | XPUSHs (sv_2mortal (newSViv (req->result))); |
151 | |
249 | |
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250 | if (req->type == REQ_OPEN) |
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251 | { |
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252 | /* convert fd to fh */ |
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253 | SV *fh; |
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254 | |
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255 | PUTBACK; |
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256 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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257 | SPAGAIN; |
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258 | |
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259 | fh = SvREFCNT_inc (POPs); |
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260 | |
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261 | PUSHMARK (SP); |
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262 | XPUSHs (sv_2mortal (fh)); |
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263 | } |
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264 | } |
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265 | |
152 | if (SvOK (req->callback)) |
266 | if (SvOK (req->callback) && !req->cancelled) |
153 | { |
267 | { |
154 | PUTBACK; |
268 | PUTBACK; |
155 | call_sv (req->callback, G_VOID | G_EVAL); |
269 | call_sv (req->callback, G_VOID | G_EVAL); |
156 | SPAGAIN; |
270 | SPAGAIN; |
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271 | |
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272 | if (SvTRUE (ERRSV)) |
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273 | { |
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274 | req_free (req); |
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275 | croak (0); |
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276 | } |
157 | } |
277 | } |
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278 | |
158 | |
279 | LEAVE; |
159 | if (req->callback) |
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160 | SvREFCNT_dec (req->callback); |
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161 | |
280 | |
162 | errno = errorno; |
281 | errno = errorno; |
163 | count++; |
282 | count++; |
164 | } |
283 | } |
165 | |
284 | |
166 | Safefree (req); |
285 | req_free (req); |
167 | } |
286 | } |
168 | |
287 | |
169 | return count; |
288 | return count; |
170 | } |
289 | } |
171 | |
290 | |
… | |
… | |
190 | |
309 | |
191 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
310 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
192 | } |
311 | } |
193 | |
312 | |
194 | static void |
313 | static void |
195 | send_req (aio_req req) |
314 | req_send (aio_req req) |
196 | { |
315 | { |
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316 | while (started < wanted && nreqs >= started) |
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317 | start_thread (); |
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318 | |
197 | nreqs++; |
319 | nreqs++; |
198 | |
320 | |
199 | pthread_mutex_lock (&reqlock); |
321 | pthread_mutex_lock (&reqlock); |
200 | |
322 | |
201 | req->next = 0; |
323 | req->next = 0; |
… | |
… | |
209 | reqe = reqs = req; |
331 | reqe = reqs = req; |
210 | |
332 | |
211 | pthread_cond_signal (&reqwait); |
333 | pthread_cond_signal (&reqwait); |
212 | pthread_mutex_unlock (&reqlock); |
334 | pthread_mutex_unlock (&reqlock); |
213 | |
335 | |
214 | while (nreqs > max_outstanding) |
336 | if (nreqs > max_outstanding) |
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337 | for (;;) |
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338 | { |
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339 | poll_cb (); |
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340 | |
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341 | if (nreqs <= max_outstanding) |
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342 | break; |
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343 | |
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344 | poll_wait (); |
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345 | } |
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346 | } |
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347 | |
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348 | static void |
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349 | end_thread (void) |
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350 | { |
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351 | aio_req req; |
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352 | Newz (0, req, 1, aio_cb); |
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353 | req->type = REQ_QUIT; |
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354 | |
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355 | req_send (req); |
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356 | } |
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357 | |
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358 | static void min_parallel (int nthreads) |
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359 | { |
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360 | if (wanted < nthreads) |
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361 | wanted = nthreads; |
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362 | } |
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363 | |
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364 | static void max_parallel (int nthreads) |
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365 | { |
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366 | int cur = started; |
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367 | |
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368 | if (wanted > nthreads) |
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369 | wanted = nthreads; |
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370 | |
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371 | while (cur > wanted) |
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372 | { |
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373 | end_thread (); |
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374 | cur--; |
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375 | } |
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376 | |
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377 | while (started > wanted) |
215 | { |
378 | { |
216 | poll_wait (); |
379 | poll_wait (); |
217 | poll_cb (); |
380 | poll_cb (); |
218 | } |
381 | } |
219 | } |
382 | } |
220 | |
383 | |
221 | static void |
384 | static void create_pipe () |
222 | end_thread (void) |
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223 | { |
385 | { |
224 | aio_req req; |
386 | if (pipe (respipe)) |
225 | New (0, req, 1, aio_cb); |
387 | croak ("unable to initialize result pipe"); |
226 | req->type = REQ_QUIT; |
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227 | |
388 | |
228 | send_req (req); |
389 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
229 | } |
390 | croak ("cannot set result pipe to nonblocking mode"); |
230 | |
391 | |
231 | static void |
392 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
232 | read_write (int dowrite, int fd, off_t offset, size_t length, |
393 | croak ("cannot set result pipe to nonblocking mode"); |
233 | SV *data, STRLEN dataoffset, SV *callback) |
394 | } |
234 | { |
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235 | aio_req req; |
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236 | STRLEN svlen; |
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237 | char *svptr = SvPV (data, svlen); |
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238 | |
395 | |
239 | SvUPGRADE (data, SVt_PV); |
396 | /*****************************************************************************/ |
240 | SvPOK_on (data); |
397 | /* work around various missing functions */ |
241 | |
398 | |
242 | if (dataoffset < 0) |
399 | #if !HAVE_PREADWRITE |
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400 | # define pread aio_pread |
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401 | # define pwrite aio_pwrite |
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402 | |
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403 | /* |
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404 | * make our pread/pwrite safe against themselves, but not against |
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405 | * normal read/write by using a mutex. slows down execution a lot, |
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406 | * but that's your problem, not mine. |
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407 | */ |
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408 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
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409 | |
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410 | static ssize_t |
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411 | pread (int fd, void *buf, size_t count, off_t offset) |
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412 | { |
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413 | ssize_t res; |
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414 | off_t ooffset; |
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415 | |
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416 | pthread_mutex_lock (&preadwritelock); |
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417 | ooffset = lseek (fd, 0, SEEK_CUR); |
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418 | lseek (fd, offset, SEEK_SET); |
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419 | res = read (fd, buf, count); |
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420 | lseek (fd, ooffset, SEEK_SET); |
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421 | pthread_mutex_unlock (&preadwritelock); |
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422 | |
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423 | return res; |
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424 | } |
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425 | |
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426 | static ssize_t |
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427 | pwrite (int fd, void *buf, size_t count, off_t offset) |
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428 | { |
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429 | ssize_t res; |
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430 | off_t ooffset; |
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431 | |
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432 | pthread_mutex_lock (&preadwritelock); |
|
|
433 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
434 | lseek (fd, offset, SEEK_SET); |
|
|
435 | res = write (fd, buf, count); |
|
|
436 | lseek (fd, offset, SEEK_SET); |
|
|
437 | pthread_mutex_unlock (&preadwritelock); |
|
|
438 | |
|
|
439 | return res; |
|
|
440 | } |
|
|
441 | #endif |
|
|
442 | |
|
|
443 | #if !HAVE_FDATASYNC |
|
|
444 | # define fdatasync fsync |
|
|
445 | #endif |
|
|
446 | |
|
|
447 | #if !HAVE_READAHEAD |
|
|
448 | # define readahead aio_readahead |
|
|
449 | |
|
|
450 | static ssize_t |
|
|
451 | readahead (int fd, off_t offset, size_t count) |
|
|
452 | { |
|
|
453 | char readahead_buf[4096]; |
|
|
454 | |
|
|
455 | while (count > 0) |
|
|
456 | { |
|
|
457 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
|
|
458 | |
|
|
459 | pread (fd, readahead_buf, len, offset); |
243 | dataoffset += svlen; |
460 | offset += len; |
244 | |
461 | count -= len; |
245 | if (dataoffset < 0 || dataoffset > svlen) |
|
|
246 | croak ("data offset outside of string"); |
|
|
247 | |
|
|
248 | if (dowrite) |
|
|
249 | { |
462 | } |
250 | /* write: check length and adjust. */ |
463 | |
251 | if (length < 0 || length + dataoffset > svlen) |
464 | errno = 0; |
252 | length = svlen - dataoffset; |
465 | } |
|
|
466 | #endif |
|
|
467 | |
|
|
468 | #if !HAVE_READDIR_R |
|
|
469 | # define readdir_r aio_readdir_r |
|
|
470 | |
|
|
471 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
|
|
472 | |
|
|
473 | static int |
|
|
474 | readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
475 | { |
|
|
476 | struct dirent *e; |
|
|
477 | int errorno; |
|
|
478 | |
|
|
479 | pthread_mutex_lock (&readdirlock); |
|
|
480 | |
|
|
481 | e = readdir (dirp); |
|
|
482 | errorno = errno; |
|
|
483 | |
|
|
484 | if (e) |
|
|
485 | { |
|
|
486 | *res = ent; |
|
|
487 | strcpy (ent->d_name, e->d_name); |
253 | } |
488 | } |
254 | else |
489 | else |
|
|
490 | *res = 0; |
|
|
491 | |
|
|
492 | pthread_mutex_unlock (&readdirlock); |
|
|
493 | |
|
|
494 | errno = errorno; |
|
|
495 | return e ? 0 : -1; |
|
|
496 | } |
|
|
497 | #endif |
|
|
498 | |
|
|
499 | /* sendfile always needs emulation */ |
|
|
500 | static ssize_t |
|
|
501 | sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
|
|
502 | { |
|
|
503 | ssize_t res; |
|
|
504 | |
|
|
505 | if (!count) |
|
|
506 | return 0; |
|
|
507 | |
|
|
508 | #if HAVE_SENDFILE |
|
|
509 | # if __linux |
|
|
510 | res = sendfile (ofd, ifd, &offset, count); |
|
|
511 | |
|
|
512 | # elif __freebsd |
|
|
513 | /* |
|
|
514 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
515 | * wasted on making it similar to other I/O functions. |
|
|
516 | */ |
255 | { |
517 | { |
256 | /* read: grow scalar as necessary */ |
518 | off_t sbytes; |
257 | svptr = SvGROW (data, length + dataoffset); |
519 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
520 | |
|
|
521 | if (res < 0 && sbytes) |
|
|
522 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
|
|
523 | res = sbytes; |
|
|
524 | } |
|
|
525 | |
|
|
526 | # elif __hpux |
|
|
527 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
528 | |
|
|
529 | # elif __solaris |
|
|
530 | { |
|
|
531 | struct sendfilevec vec; |
|
|
532 | size_t sbytes; |
|
|
533 | |
|
|
534 | vec.sfv_fd = ifd; |
|
|
535 | vec.sfv_flag = 0; |
|
|
536 | vec.sfv_off = offset; |
|
|
537 | vec.sfv_len = count; |
|
|
538 | |
|
|
539 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
540 | |
|
|
541 | if (res < 0 && sbytes) |
|
|
542 | res = sbytes; |
|
|
543 | } |
|
|
544 | |
|
|
545 | # endif |
|
|
546 | #else |
|
|
547 | res = -1; |
|
|
548 | errno = ENOSYS; |
|
|
549 | #endif |
|
|
550 | |
|
|
551 | if (res < 0 |
|
|
552 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
553 | #if __solaris |
|
|
554 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
555 | #endif |
|
|
556 | ) |
|
|
557 | ) |
258 | } |
558 | { |
|
|
559 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
560 | char buf[4096]; |
|
|
561 | res = 0; |
259 | |
562 | |
260 | if (length < 0) |
563 | while (count) |
261 | croak ("length must not be negative"); |
564 | { |
|
|
565 | ssize_t cnt; |
|
|
566 | |
|
|
567 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
262 | |
568 | |
263 | Newz (0, req, 1, aio_cb); |
569 | if (cnt <= 0) |
|
|
570 | { |
|
|
571 | if (cnt && !res) res = -1; |
|
|
572 | break; |
|
|
573 | } |
264 | |
574 | |
|
|
575 | cnt = write (ofd, buf, cnt); |
|
|
576 | |
|
|
577 | if (cnt <= 0) |
|
|
578 | { |
|
|
579 | if (cnt && !res) res = -1; |
|
|
580 | break; |
|
|
581 | } |
|
|
582 | |
|
|
583 | offset += cnt; |
|
|
584 | res += cnt; |
|
|
585 | count -= cnt; |
|
|
586 | } |
|
|
587 | } |
|
|
588 | |
|
|
589 | return res; |
|
|
590 | } |
|
|
591 | |
|
|
592 | /* read a full directory */ |
|
|
593 | static int |
|
|
594 | scandir_ (const char *path, void **namesp) |
|
|
595 | { |
|
|
596 | DIR *dirp = opendir (path); |
|
|
597 | union |
|
|
598 | { |
|
|
599 | struct dirent d; |
|
|
600 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
601 | } u; |
|
|
602 | struct dirent *entp; |
|
|
603 | char *name, *names; |
|
|
604 | int memlen = 4096; |
|
|
605 | int memofs = 0; |
|
|
606 | int res = 0; |
|
|
607 | int errorno; |
|
|
608 | |
265 | if (!req) |
609 | if (!dirp) |
266 | croak ("out of memory during aio_req allocation"); |
610 | return -1; |
267 | |
611 | |
268 | req->type = dowrite ? REQ_WRITE : REQ_READ; |
612 | names = malloc (memlen); |
269 | req->fd = fd; |
|
|
270 | req->offset = offset; |
|
|
271 | req->length = length; |
|
|
272 | req->data = SvREFCNT_inc (data); |
|
|
273 | req->dataptr = (char *)svptr + dataoffset; |
|
|
274 | req->callback = SvREFCNT_inc (callback); |
|
|
275 | |
613 | |
276 | send_req (req); |
614 | for (;;) |
|
|
615 | { |
|
|
616 | errno = 0, readdir_r (dirp, &u.d, &entp); |
|
|
617 | |
|
|
618 | if (!entp) |
|
|
619 | break; |
|
|
620 | |
|
|
621 | name = entp->d_name; |
|
|
622 | |
|
|
623 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
624 | { |
|
|
625 | int len = strlen (name) + 1; |
|
|
626 | |
|
|
627 | res++; |
|
|
628 | |
|
|
629 | while (memofs + len > memlen) |
|
|
630 | { |
|
|
631 | memlen *= 2; |
|
|
632 | names = realloc (names, memlen); |
|
|
633 | if (!names) |
|
|
634 | break; |
|
|
635 | } |
|
|
636 | |
|
|
637 | memcpy (names + memofs, name, len); |
|
|
638 | memofs += len; |
|
|
639 | } |
|
|
640 | } |
|
|
641 | |
|
|
642 | errorno = errno; |
|
|
643 | closedir (dirp); |
|
|
644 | |
|
|
645 | if (errorno) |
|
|
646 | { |
|
|
647 | free (names); |
|
|
648 | errno = errorno; |
|
|
649 | res = -1; |
|
|
650 | } |
|
|
651 | |
|
|
652 | *namesp = (void *)names; |
|
|
653 | return res; |
277 | } |
654 | } |
|
|
655 | |
|
|
656 | /*****************************************************************************/ |
278 | |
657 | |
279 | static void * |
658 | static void * |
280 | aio_proc (void *thr_arg) |
659 | aio_proc (void *thr_arg) |
281 | { |
660 | { |
282 | aio_req req; |
661 | aio_req req; |
… | |
… | |
304 | |
683 | |
305 | pthread_mutex_unlock (&reqlock); |
684 | pthread_mutex_unlock (&reqlock); |
306 | |
685 | |
307 | errno = 0; /* strictly unnecessary */ |
686 | errno = 0; /* strictly unnecessary */ |
308 | |
687 | |
309 | type = req->type; |
688 | if (!req->cancelled) |
310 | |
|
|
311 | switch (type) |
689 | switch (req->type) |
312 | { |
690 | { |
313 | case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break; |
691 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
314 | case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, req->offset); break; |
692 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
315 | #if SYS_readahead |
693 | |
316 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
694 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
317 | #else |
695 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
318 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
|
|
319 | #endif |
|
|
320 | |
696 | |
321 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
697 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
322 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
698 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
323 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
699 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
324 | |
700 | |
325 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
701 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
326 | case REQ_CLOSE: req->result = close (req->fd); break; |
702 | case REQ_CLOSE: req->result = close (req->fd); break; |
327 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
703 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
328 | |
|
|
329 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
704 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
705 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
|
|
706 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
|
|
707 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
|
|
708 | |
330 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
709 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
|
|
710 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
711 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
331 | |
712 | |
332 | case REQ_QUIT: |
713 | case REQ_QUIT: |
333 | break; |
714 | break; |
334 | |
715 | |
335 | default: |
716 | default: |
336 | req->result = ENOSYS; |
717 | req->result = ENOSYS; |
337 | break; |
718 | break; |
338 | } |
719 | } |
339 | |
720 | |
340 | req->errorno = errno; |
721 | req->errorno = errno; |
341 | |
722 | |
342 | pthread_mutex_lock (&reslock); |
723 | pthread_mutex_lock (&reslock); |
343 | |
724 | |
… | |
… | |
361 | while (type != REQ_QUIT); |
742 | while (type != REQ_QUIT); |
362 | |
743 | |
363 | return 0; |
744 | return 0; |
364 | } |
745 | } |
365 | |
746 | |
|
|
747 | /*****************************************************************************/ |
|
|
748 | |
|
|
749 | static void atfork_prepare (void) |
|
|
750 | { |
|
|
751 | pthread_mutex_lock (&reqlock); |
|
|
752 | pthread_mutex_lock (&reslock); |
|
|
753 | #if !HAVE_PREADWRITE |
|
|
754 | pthread_mutex_lock (&preadwritelock); |
|
|
755 | #endif |
|
|
756 | #if !HAVE_READDIR_R |
|
|
757 | pthread_mutex_lock (&readdirlock); |
|
|
758 | #endif |
|
|
759 | } |
|
|
760 | |
|
|
761 | static void atfork_parent (void) |
|
|
762 | { |
|
|
763 | #if !HAVE_READDIR_R |
|
|
764 | pthread_mutex_unlock (&readdirlock); |
|
|
765 | #endif |
|
|
766 | #if !HAVE_PREADWRITE |
|
|
767 | pthread_mutex_unlock (&preadwritelock); |
|
|
768 | #endif |
|
|
769 | pthread_mutex_unlock (&reslock); |
|
|
770 | pthread_mutex_unlock (&reqlock); |
|
|
771 | } |
|
|
772 | |
|
|
773 | static void atfork_child (void) |
|
|
774 | { |
|
|
775 | aio_req prv; |
|
|
776 | |
|
|
777 | started = 0; |
|
|
778 | |
|
|
779 | while (reqs) |
|
|
780 | { |
|
|
781 | prv = reqs; |
|
|
782 | reqs = prv->next; |
|
|
783 | req_free (prv); |
|
|
784 | } |
|
|
785 | |
|
|
786 | reqs = reqe = 0; |
|
|
787 | |
|
|
788 | while (ress) |
|
|
789 | { |
|
|
790 | prv = ress; |
|
|
791 | ress = prv->next; |
|
|
792 | req_free (prv); |
|
|
793 | } |
|
|
794 | |
|
|
795 | ress = rese = 0; |
|
|
796 | |
|
|
797 | close (respipe [0]); |
|
|
798 | close (respipe [1]); |
|
|
799 | create_pipe (); |
|
|
800 | |
|
|
801 | atfork_parent (); |
|
|
802 | } |
|
|
803 | |
|
|
804 | #define dREQ \ |
|
|
805 | aio_req req; \ |
|
|
806 | \ |
|
|
807 | if (SvOK (callback) && !SvROK (callback)) \ |
|
|
808 | croak ("callback must be undef or of reference type"); \ |
|
|
809 | \ |
|
|
810 | Newz (0, req, 1, aio_cb); \ |
|
|
811 | if (!req) \ |
|
|
812 | croak ("out of memory during aio_req allocation"); \ |
|
|
813 | \ |
|
|
814 | req->callback = newSVsv (callback) |
|
|
815 | |
|
|
816 | #define REQ_SEND \ |
|
|
817 | req_send (req); \ |
|
|
818 | \ |
|
|
819 | if (GIMME_V != G_VOID) \ |
|
|
820 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
|
|
821 | |
366 | MODULE = IO::AIO PACKAGE = IO::AIO |
822 | MODULE = IO::AIO PACKAGE = IO::AIO |
367 | |
823 | |
368 | PROTOTYPES: ENABLE |
824 | PROTOTYPES: ENABLE |
369 | |
825 | |
370 | BOOT: |
826 | BOOT: |
371 | { |
827 | { |
372 | if (pipe (respipe)) |
828 | HV *stash = gv_stashpv ("IO::AIO", 1); |
373 | croak ("unable to initialize result pipe"); |
829 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
830 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
831 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
374 | |
832 | |
375 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
833 | create_pipe (); |
376 | croak ("cannot set result pipe to nonblocking mode"); |
834 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
377 | |
|
|
378 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
379 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
380 | } |
835 | } |
381 | |
836 | |
382 | void |
837 | void |
383 | min_parallel(nthreads) |
838 | min_parallel (nthreads) |
384 | int nthreads |
839 | int nthreads |
385 | PROTOTYPE: $ |
840 | PROTOTYPE: $ |
386 | CODE: |
|
|
387 | while (nthreads > started) |
|
|
388 | start_thread (); |
|
|
389 | |
841 | |
390 | void |
842 | void |
391 | max_parallel(nthreads) |
843 | max_parallel (nthreads) |
392 | int nthreads |
844 | int nthreads |
393 | PROTOTYPE: $ |
845 | PROTOTYPE: $ |
394 | CODE: |
|
|
395 | { |
|
|
396 | int cur = started; |
|
|
397 | while (cur > nthreads) |
|
|
398 | { |
|
|
399 | end_thread (); |
|
|
400 | cur--; |
|
|
401 | } |
|
|
402 | |
|
|
403 | while (started > nthreads) |
|
|
404 | { |
|
|
405 | poll_wait (); |
|
|
406 | poll_cb (); |
|
|
407 | } |
|
|
408 | } |
|
|
409 | |
846 | |
410 | int |
847 | int |
411 | max_outstanding(nreqs) |
848 | max_outstanding (nreqs) |
412 | int nreqs |
849 | int nreqs |
413 | PROTOTYPE: $ |
850 | PROTOTYPE: $ |
414 | CODE: |
851 | CODE: |
415 | RETVAL = max_outstanding; |
852 | RETVAL = max_outstanding; |
416 | max_outstanding = nreqs; |
853 | max_outstanding = nreqs; |
417 | |
854 | |
418 | void |
855 | void |
419 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
856 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
420 | SV * pathname |
857 | SV * pathname |
421 | int flags |
858 | int flags |
422 | int mode |
859 | int mode |
423 | SV * callback |
860 | SV * callback |
424 | PROTOTYPE: $$$;$ |
861 | PROTOTYPE: $$$;$ |
425 | CODE: |
862 | PPCODE: |
426 | { |
863 | { |
427 | aio_req req; |
864 | dREQ; |
428 | |
|
|
429 | Newz (0, req, 1, aio_cb); |
|
|
430 | |
|
|
431 | if (!req) |
|
|
432 | croak ("out of memory during aio_req allocation"); |
|
|
433 | |
865 | |
434 | req->type = REQ_OPEN; |
866 | req->type = REQ_OPEN; |
435 | req->data = newSVsv (pathname); |
867 | req->data = newSVsv (pathname); |
436 | req->dataptr = SvPV_nolen (req->data); |
868 | req->dataptr = SvPVbyte_nolen (req->data); |
437 | req->fd = flags; |
869 | req->fd = flags; |
438 | req->mode = mode; |
870 | req->mode = mode; |
439 | req->callback = SvREFCNT_inc (callback); |
|
|
440 | |
871 | |
441 | send_req (req); |
872 | REQ_SEND; |
442 | } |
873 | } |
443 | |
874 | |
444 | void |
875 | void |
445 | aio_close(fh,callback=&PL_sv_undef) |
876 | aio_close (fh,callback=&PL_sv_undef) |
446 | InputStream fh |
877 | SV * fh |
447 | SV * callback |
878 | SV * callback |
448 | PROTOTYPE: $;$ |
879 | PROTOTYPE: $;$ |
449 | ALIAS: |
880 | ALIAS: |
450 | aio_close = REQ_CLOSE |
881 | aio_close = REQ_CLOSE |
451 | aio_fsync = REQ_FSYNC |
882 | aio_fsync = REQ_FSYNC |
452 | aio_fdatasync = REQ_FDATASYNC |
883 | aio_fdatasync = REQ_FDATASYNC |
453 | CODE: |
884 | PPCODE: |
|
|
885 | { |
|
|
886 | dREQ; |
|
|
887 | |
|
|
888 | req->type = ix; |
|
|
889 | req->fh = newSVsv (fh); |
|
|
890 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
|
|
891 | |
|
|
892 | REQ_SEND (req); |
|
|
893 | } |
|
|
894 | |
|
|
895 | void |
|
|
896 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
|
|
897 | SV * fh |
|
|
898 | UV offset |
|
|
899 | UV length |
|
|
900 | SV * data |
|
|
901 | UV dataoffset |
|
|
902 | SV * callback |
|
|
903 | ALIAS: |
|
|
904 | aio_read = REQ_READ |
|
|
905 | aio_write = REQ_WRITE |
|
|
906 | PROTOTYPE: $$$$$;$ |
|
|
907 | PPCODE: |
454 | { |
908 | { |
455 | aio_req req; |
909 | aio_req req; |
|
|
910 | STRLEN svlen; |
|
|
911 | char *svptr = SvPVbyte (data, svlen); |
456 | |
912 | |
457 | Newz (0, req, 1, aio_cb); |
913 | SvUPGRADE (data, SVt_PV); |
|
|
914 | SvPOK_on (data); |
458 | |
915 | |
459 | if (!req) |
916 | if (dataoffset < 0) |
460 | croak ("out of memory during aio_req allocation"); |
917 | dataoffset += svlen; |
461 | |
918 | |
462 | req->type = ix; |
919 | if (dataoffset < 0 || dataoffset > svlen) |
463 | req->fd = PerlIO_fileno (fh); |
920 | croak ("data offset outside of string"); |
464 | req->callback = SvREFCNT_inc (callback); |
|
|
465 | |
921 | |
466 | send_req (req); |
922 | if (ix == REQ_WRITE) |
467 | } |
923 | { |
468 | |
924 | /* write: check length and adjust. */ |
469 | void |
925 | if (length < 0 || length + dataoffset > svlen) |
470 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
926 | length = svlen - dataoffset; |
471 | InputStream fh |
927 | } |
472 | UV offset |
928 | else |
473 | IV length |
929 | { |
474 | SV * data |
930 | /* read: grow scalar as necessary */ |
475 | IV dataoffset |
931 | svptr = SvGROW (data, length + dataoffset); |
476 | SV * callback |
932 | } |
477 | PROTOTYPE: $$$$$;$ |
|
|
478 | CODE: |
|
|
479 | read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
480 | |
|
|
481 | void |
|
|
482 | aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
|
|
483 | OutputStream fh |
|
|
484 | UV offset |
|
|
485 | IV length |
|
|
486 | SV * data |
|
|
487 | IV dataoffset |
|
|
488 | SV * callback |
|
|
489 | PROTOTYPE: $$$$$;$ |
|
|
490 | CODE: |
|
|
491 | read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
492 | |
|
|
493 | void |
|
|
494 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
|
|
495 | InputStream fh |
|
|
496 | UV offset |
|
|
497 | IV length |
|
|
498 | SV * callback |
|
|
499 | PROTOTYPE: $$$;$ |
|
|
500 | CODE: |
|
|
501 | { |
|
|
502 | aio_req req; |
|
|
503 | |
933 | |
504 | if (length < 0) |
934 | if (length < 0) |
505 | croak ("length must not be negative"); |
935 | croak ("length must not be negative"); |
506 | |
936 | |
507 | Newz (0, req, 1, aio_cb); |
937 | { |
|
|
938 | dREQ; |
508 | |
939 | |
509 | if (!req) |
940 | req->type = ix; |
510 | croak ("out of memory during aio_req allocation"); |
941 | req->fh = newSVsv (fh); |
|
|
942 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
|
|
943 | : IoOFP (sv_2io (fh))); |
|
|
944 | req->offset = offset; |
|
|
945 | req->length = length; |
|
|
946 | req->data = SvREFCNT_inc (data); |
|
|
947 | req->dataptr = (char *)svptr + dataoffset; |
|
|
948 | |
|
|
949 | if (!SvREADONLY (data)) |
|
|
950 | { |
|
|
951 | SvREADONLY_on (data); |
|
|
952 | req->data2ptr = (void *)data; |
|
|
953 | } |
|
|
954 | |
|
|
955 | REQ_SEND; |
|
|
956 | } |
|
|
957 | } |
|
|
958 | |
|
|
959 | void |
|
|
960 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
|
|
961 | SV * out_fh |
|
|
962 | SV * in_fh |
|
|
963 | UV in_offset |
|
|
964 | UV length |
|
|
965 | SV * callback |
|
|
966 | PROTOTYPE: $$$$;$ |
|
|
967 | PPCODE: |
|
|
968 | { |
|
|
969 | dREQ; |
|
|
970 | |
|
|
971 | req->type = REQ_SENDFILE; |
|
|
972 | req->fh = newSVsv (out_fh); |
|
|
973 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
974 | req->fh2 = newSVsv (in_fh); |
|
|
975 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
976 | req->offset = in_offset; |
|
|
977 | req->length = length; |
|
|
978 | |
|
|
979 | REQ_SEND; |
|
|
980 | } |
|
|
981 | |
|
|
982 | void |
|
|
983 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
|
|
984 | SV * fh |
|
|
985 | UV offset |
|
|
986 | IV length |
|
|
987 | SV * callback |
|
|
988 | PROTOTYPE: $$$;$ |
|
|
989 | PPCODE: |
|
|
990 | { |
|
|
991 | dREQ; |
511 | |
992 | |
512 | req->type = REQ_READAHEAD; |
993 | req->type = REQ_READAHEAD; |
|
|
994 | req->fh = newSVsv (fh); |
513 | req->fd = PerlIO_fileno (fh); |
995 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
514 | req->offset = offset; |
996 | req->offset = offset; |
515 | req->length = length; |
997 | req->length = length; |
516 | req->callback = SvREFCNT_inc (callback); |
|
|
517 | |
998 | |
518 | send_req (req); |
999 | REQ_SEND; |
519 | } |
1000 | } |
520 | |
1001 | |
521 | void |
1002 | void |
522 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
1003 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
523 | SV * fh_or_path |
1004 | SV * fh_or_path |
524 | SV * callback |
1005 | SV * callback |
525 | ALIAS: |
1006 | ALIAS: |
526 | aio_stat = REQ_STAT |
1007 | aio_stat = REQ_STAT |
527 | aio_lstat = REQ_LSTAT |
1008 | aio_lstat = REQ_LSTAT |
528 | CODE: |
1009 | PPCODE: |
529 | { |
1010 | { |
530 | aio_req req; |
1011 | dREQ; |
531 | |
|
|
532 | Newz (0, req, 1, aio_cb); |
|
|
533 | |
|
|
534 | if (!req) |
|
|
535 | croak ("out of memory during aio_req allocation"); |
|
|
536 | |
1012 | |
537 | New (0, req->statdata, 1, Stat_t); |
1013 | New (0, req->statdata, 1, Stat_t); |
538 | |
|
|
539 | if (!req->statdata) |
1014 | if (!req->statdata) |
|
|
1015 | { |
|
|
1016 | req_free (req); |
540 | croak ("out of memory during aio_req->statdata allocation"); |
1017 | croak ("out of memory during aio_req->statdata allocation"); |
|
|
1018 | } |
541 | |
1019 | |
542 | if (SvPOK (fh_or_path)) |
1020 | if (SvPOK (fh_or_path)) |
543 | { |
1021 | { |
544 | req->type = ix; |
1022 | req->type = ix; |
545 | req->data = newSVsv (fh_or_path); |
1023 | req->data = newSVsv (fh_or_path); |
546 | req->dataptr = SvPV_nolen (req->data); |
1024 | req->dataptr = SvPVbyte_nolen (req->data); |
547 | } |
1025 | } |
548 | else |
1026 | else |
549 | { |
1027 | { |
550 | req->type = REQ_FSTAT; |
1028 | req->type = REQ_FSTAT; |
|
|
1029 | req->fh = newSVsv (fh_or_path); |
551 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1030 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
552 | } |
1031 | } |
553 | |
1032 | |
554 | req->callback = SvREFCNT_inc (callback); |
1033 | REQ_SEND; |
555 | |
|
|
556 | send_req (req); |
|
|
557 | } |
1034 | } |
558 | |
1035 | |
559 | void |
1036 | void |
560 | aio_unlink(pathname,callback=&PL_sv_undef) |
1037 | aio_unlink (pathname,callback=&PL_sv_undef) |
561 | SV * pathname |
1038 | SV * pathname |
562 | SV * callback |
1039 | SV * callback |
|
|
1040 | ALIAS: |
|
|
1041 | aio_unlink = REQ_UNLINK |
|
|
1042 | aio_rmdir = REQ_RMDIR |
|
|
1043 | aio_readdir = REQ_READDIR |
563 | CODE: |
1044 | PPCODE: |
564 | { |
1045 | { |
565 | aio_req req; |
1046 | dREQ; |
566 | |
1047 | |
567 | Newz (0, req, 1, aio_cb); |
1048 | req->type = ix; |
|
|
1049 | req->data = newSVsv (pathname); |
|
|
1050 | req->dataptr = SvPVbyte_nolen (req->data); |
568 | |
1051 | |
569 | if (!req) |
1052 | REQ_SEND; |
570 | croak ("out of memory during aio_req allocation"); |
1053 | } |
|
|
1054 | |
|
|
1055 | void |
|
|
1056 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
|
|
1057 | SV * oldpath |
|
|
1058 | SV * newpath |
|
|
1059 | SV * callback |
|
|
1060 | ALIAS: |
|
|
1061 | aio_link = REQ_LINK |
|
|
1062 | aio_symlink = REQ_SYMLINK |
|
|
1063 | aio_rename = REQ_RENAME |
|
|
1064 | PPCODE: |
|
|
1065 | { |
|
|
1066 | dREQ; |
571 | |
1067 | |
572 | req->type = REQ_UNLINK; |
1068 | req->type = ix; |
|
|
1069 | req->fh = newSVsv (oldpath); |
|
|
1070 | req->data2ptr = SvPVbyte_nolen (req->fh); |
573 | req->data = newSVsv (pathname); |
1071 | req->data = newSVsv (newpath); |
574 | req->dataptr = SvPV_nolen (req->data); |
1072 | req->dataptr = SvPVbyte_nolen (req->data); |
575 | req->callback = SvREFCNT_inc (callback); |
|
|
576 | |
1073 | |
577 | send_req (req); |
1074 | REQ_SEND; |
578 | } |
1075 | } |
579 | |
1076 | |
580 | void |
1077 | void |
|
|
1078 | aio_group (callback=&PL_sv_undef) |
|
|
1079 | SV * callback |
|
|
1080 | PROTOTYPE: ;& |
|
|
1081 | PPCODE: |
|
|
1082 | { |
|
|
1083 | dREQ; |
|
|
1084 | req->type = REQ_GROUP; |
|
|
1085 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1086 | } |
|
|
1087 | |
|
|
1088 | void |
581 | flush() |
1089 | flush () |
582 | PROTOTYPE: |
1090 | PROTOTYPE: |
583 | CODE: |
1091 | CODE: |
584 | while (nreqs) |
1092 | while (nreqs) |
585 | { |
1093 | { |
586 | poll_wait (); |
1094 | poll_wait (); |
… | |
… | |
626 | CODE: |
1134 | CODE: |
627 | RETVAL = nreqs; |
1135 | RETVAL = nreqs; |
628 | OUTPUT: |
1136 | OUTPUT: |
629 | RETVAL |
1137 | RETVAL |
630 | |
1138 | |
|
|
1139 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1140 | |
|
|
1141 | void |
|
|
1142 | cancel (aio_req_ornot req) |
|
|
1143 | PROTOTYPE: |
|
|
1144 | CODE: |
|
|
1145 | req->cancelled = 1; |
|
|
1146 | |