1 | #define PERL_NO_GET_CONTEXT |
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2 | |
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3 | #include "EXTERN.h" |
1 | #include "EXTERN.h" |
4 | #include "perl.h" |
2 | #include "perl.h" |
5 | #include "XSUB.h" |
3 | #include "XSUB.h" |
6 | |
4 | |
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5 | #define _XOPEN_SOURCE 500 |
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6 | |
7 | #include <sys/types.h> |
7 | #include <sys/types.h> |
8 | #include <sys/stat.h> |
8 | #include <sys/stat.h> |
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9 | |
9 | #include <unistd.h> |
10 | #include <unistd.h> |
10 | #include <fcntl.h> |
11 | #include <fcntl.h> |
11 | #include <signal.h> |
12 | #include <signal.h> |
12 | #include <sched.h> |
13 | #include <sched.h> |
13 | #include <endian.h> |
14 | #if __linux |
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15 | #include <sys/syscall.h> |
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16 | #endif |
14 | |
17 | |
15 | #include <pthread.h> |
18 | #include <pthread.h> |
16 | #include <sys/syscall.h> |
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17 | |
19 | |
18 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
20 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
19 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
21 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
20 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
22 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
21 | |
23 | |
22 | #if __i386 || __amd64 |
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23 | # define STACKSIZE ( 256 * sizeof (long)) |
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24 | #elif __ia64 |
24 | #if __ia64 |
25 | # define STACKSIZE (8192 * sizeof (long)) |
25 | # define STACKSIZE 65536 |
26 | #else |
26 | #else |
27 | # define STACKSIZE ( 512 * sizeof (long)) |
27 | # define STACKSIZE 4096 |
28 | #endif |
28 | #endif |
29 | |
29 | |
30 | enum { |
30 | enum { |
31 | REQ_QUIT, |
31 | REQ_QUIT, |
32 | REQ_OPEN, REQ_CLOSE, |
32 | REQ_OPEN, REQ_CLOSE, |
… | |
… | |
55 | |
55 | |
56 | typedef aio_cb *aio_req; |
56 | typedef aio_cb *aio_req; |
57 | |
57 | |
58 | static int started; |
58 | static int started; |
59 | static int nreqs; |
59 | static int nreqs; |
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60 | static int max_outstanding = 1<<30; |
60 | static int respipe [2]; |
61 | static int respipe [2]; |
61 | |
62 | |
62 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
63 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
63 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
64 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
64 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
65 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
65 | |
66 | |
66 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
67 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
67 | static volatile aio_req ress, rese; /* queue start, queue end */ |
68 | static volatile aio_req ress, rese; /* queue start, queue end */ |
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69 | |
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70 | static void |
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71 | poll_wait () |
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72 | { |
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73 | if (!nreqs) |
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74 | return; |
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75 | |
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76 | fd_set rfd; |
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77 | FD_ZERO(&rfd); |
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78 | FD_SET(respipe [0], &rfd); |
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79 | |
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80 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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81 | } |
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82 | |
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83 | static int |
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84 | poll_cb () |
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85 | { |
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86 | dSP; |
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87 | int count = 0; |
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88 | aio_req req; |
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89 | |
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90 | { |
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91 | /* read and signals sent by the worker threads */ |
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92 | char buf [32]; |
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93 | while (read (respipe [0], buf, 32) > 0) |
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94 | ; |
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95 | } |
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96 | |
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97 | for (;;) |
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98 | { |
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99 | pthread_mutex_lock (&reslock); |
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100 | |
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101 | req = ress; |
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102 | |
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103 | if (ress) |
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104 | { |
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105 | ress = ress->next; |
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106 | if (!ress) rese = 0; |
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107 | } |
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108 | |
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109 | pthread_mutex_unlock (&reslock); |
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110 | |
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111 | if (!req) |
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112 | break; |
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113 | |
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114 | nreqs--; |
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115 | |
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116 | if (req->type == REQ_QUIT) |
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117 | started--; |
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118 | else |
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119 | { |
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120 | int errorno = errno; |
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121 | errno = req->errorno; |
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122 | |
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123 | if (req->type == REQ_READ) |
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124 | SvCUR_set (req->data, req->dataoffset |
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125 | + req->result > 0 ? req->result : 0); |
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126 | |
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127 | if (req->data) |
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128 | SvREFCNT_dec (req->data); |
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129 | |
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130 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
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131 | { |
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132 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
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133 | PL_laststatval = req->result; |
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134 | PL_statcache = *(req->statdata); |
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135 | |
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136 | Safefree (req->statdata); |
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137 | } |
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138 | |
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139 | PUSHMARK (SP); |
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140 | XPUSHs (sv_2mortal (newSViv (req->result))); |
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141 | |
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142 | if (req->type == REQ_OPEN) |
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143 | { |
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144 | /* convert fd to fh */ |
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145 | SV *fh; |
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146 | |
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147 | PUTBACK; |
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148 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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149 | SPAGAIN; |
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150 | |
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151 | fh = POPs; |
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152 | |
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153 | PUSHMARK (SP); |
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154 | XPUSHs (fh); |
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155 | } |
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156 | |
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157 | if (SvOK (req->callback)) |
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158 | { |
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159 | PUTBACK; |
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160 | call_sv (req->callback, G_VOID | G_EVAL); |
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161 | SPAGAIN; |
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162 | } |
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163 | |
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164 | if (req->callback) |
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165 | SvREFCNT_dec (req->callback); |
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166 | |
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167 | errno = errorno; |
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168 | count++; |
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169 | } |
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170 | |
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171 | Safefree (req); |
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172 | } |
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173 | |
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174 | return count; |
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175 | } |
68 | |
176 | |
69 | static void *aio_proc(void *arg); |
177 | static void *aio_proc(void *arg); |
70 | |
178 | |
71 | static void |
179 | static void |
72 | start_thread (void) |
180 | start_thread (void) |
… | |
… | |
105 | else |
213 | else |
106 | reqe = reqs = req; |
214 | reqe = reqs = req; |
107 | |
215 | |
108 | pthread_cond_signal (&reqwait); |
216 | pthread_cond_signal (&reqwait); |
109 | pthread_mutex_unlock (&reqlock); |
217 | pthread_mutex_unlock (&reqlock); |
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218 | |
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219 | while (nreqs > max_outstanding) |
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220 | { |
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221 | poll_wait (); |
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222 | poll_cb (); |
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223 | } |
110 | } |
224 | } |
111 | |
225 | |
112 | static void |
226 | static void |
113 | end_thread (void) |
227 | end_thread (void) |
114 | { |
228 | { |
… | |
… | |
118 | |
232 | |
119 | send_req (req); |
233 | send_req (req); |
120 | } |
234 | } |
121 | |
235 | |
122 | static void |
236 | static void |
123 | read_write (pTHX_ |
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124 | int dowrite, int fd, off_t offset, size_t length, |
237 | read_write (int dowrite, int fd, off_t offset, size_t length, |
125 | SV *data, STRLEN dataoffset, SV *callback) |
238 | SV *data, STRLEN dataoffset, SV *callback) |
126 | { |
239 | { |
127 | aio_req req; |
240 | aio_req req; |
128 | STRLEN svlen; |
241 | STRLEN svlen; |
129 | char *svptr = SvPV (data, svlen); |
242 | char *svptr = SvPV (data, svlen); |
… | |
… | |
166 | req->callback = SvREFCNT_inc (callback); |
279 | req->callback = SvREFCNT_inc (callback); |
167 | |
280 | |
168 | send_req (req); |
281 | send_req (req); |
169 | } |
282 | } |
170 | |
283 | |
171 | static void |
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172 | poll_wait () |
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173 | { |
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174 | if (!nreqs) |
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175 | return; |
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176 | |
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177 | fd_set rfd; |
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178 | FD_ZERO(&rfd); |
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179 | FD_SET(respipe [0], &rfd); |
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180 | |
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181 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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182 | } |
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183 | |
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184 | static int |
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185 | poll_cb (pTHX) |
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186 | { |
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187 | dSP; |
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188 | int count = 0; |
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189 | aio_req req; |
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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 | |
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198 | for (;;) |
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199 | { |
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200 | pthread_mutex_lock (&reslock); |
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201 | |
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202 | req = ress; |
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203 | |
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204 | if (ress) |
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205 | { |
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206 | ress = ress->next; |
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207 | if (!ress) rese = 0; |
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208 | } |
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209 | |
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210 | pthread_mutex_unlock (&reslock); |
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211 | |
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212 | if (!req) |
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213 | break; |
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214 | |
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215 | nreqs--; |
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216 | |
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217 | if (req->type == REQ_QUIT) |
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218 | started--; |
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219 | else |
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220 | { |
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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) |
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225 | SvCUR_set (req->data, req->dataoffset |
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226 | + req->result > 0 ? req->result : 0); |
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227 | |
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228 | if (req->data) |
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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 | { |
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233 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
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234 | PL_laststatval = req->result; |
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235 | PL_statcache = *(req->statdata); |
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236 | |
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237 | Safefree (req->statdata); |
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238 | } |
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239 | |
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240 | PUSHMARK (SP); |
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241 | XPUSHs (sv_2mortal (newSViv (req->result))); |
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242 | |
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243 | if (req->type == REQ_OPEN) |
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244 | { |
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245 | /* convert fd to fh */ |
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246 | SV *fh; |
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247 | |
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248 | PUTBACK; |
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249 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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250 | SPAGAIN; |
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251 | |
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252 | fh = POPs; |
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253 | |
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254 | PUSHMARK (SP); |
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255 | XPUSHs (fh); |
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256 | } |
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257 | |
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258 | PUTBACK; |
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259 | call_sv (req->callback, G_VOID | G_EVAL); |
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260 | SPAGAIN; |
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261 | |
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262 | if (req->callback) |
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263 | SvREFCNT_dec (req->callback); |
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264 | |
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265 | errno = errorno; |
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266 | count++; |
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267 | } |
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268 | |
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269 | Safefree (req); |
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270 | } |
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271 | |
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272 | return count; |
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273 | } |
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274 | |
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275 | static void * |
284 | static void * |
276 | aio_proc (void *thr_arg) |
285 | aio_proc (void *thr_arg) |
277 | { |
286 | { |
278 | aio_req req; |
287 | aio_req req; |
279 | int type; |
288 | int type; |
… | |
… | |
304 | |
313 | |
305 | type = req->type; |
314 | type = req->type; |
306 | |
315 | |
307 | switch (type) |
316 | switch (type) |
308 | { |
317 | { |
309 | case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break; |
318 | 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; |
319 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
311 | #if SYS_readahead |
320 | #if SYS_readahead |
312 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
321 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
313 | #else |
322 | #else |
314 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
323 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
315 | #endif |
324 | #endif |
… | |
… | |
359 | return 0; |
368 | return 0; |
360 | } |
369 | } |
361 | |
370 | |
362 | MODULE = IO::AIO PACKAGE = IO::AIO |
371 | MODULE = IO::AIO PACKAGE = IO::AIO |
363 | |
372 | |
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373 | PROTOTYPES: ENABLE |
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374 | |
364 | BOOT: |
375 | BOOT: |
365 | { |
376 | { |
366 | if (pipe (respipe)) |
377 | if (pipe (respipe)) |
367 | croak ("unable to initialize result pipe"); |
378 | croak ("unable to initialize result pipe"); |
368 | |
379 | |
… | |
… | |
395 | } |
406 | } |
396 | |
407 | |
397 | while (started > nthreads) |
408 | while (started > nthreads) |
398 | { |
409 | { |
399 | poll_wait (); |
410 | poll_wait (); |
400 | poll_cb (aTHX); |
411 | poll_cb (); |
401 | } |
412 | } |
402 | } |
413 | } |
403 | |
414 | |
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415 | int |
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416 | max_outstanding(nreqs) |
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417 | int nreqs |
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418 | PROTOTYPE: $ |
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419 | CODE: |
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420 | RETVAL = max_outstanding; |
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421 | max_outstanding = nreqs; |
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422 | |
404 | void |
423 | void |
405 | aio_open(pathname,flags,mode,callback) |
424 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
406 | SV * pathname |
425 | SV * pathname |
407 | int flags |
426 | int flags |
408 | int mode |
427 | int mode |
409 | SV * callback |
428 | SV * callback |
410 | PROTOTYPE: $$$$ |
429 | PROTOTYPE: $$$;$ |
411 | CODE: |
430 | CODE: |
412 | { |
431 | { |
413 | aio_req req; |
432 | aio_req req; |
414 | |
433 | |
415 | Newz (0, req, 1, aio_cb); |
434 | Newz (0, req, 1, aio_cb); |
… | |
… | |
426 | |
445 | |
427 | send_req (req); |
446 | send_req (req); |
428 | } |
447 | } |
429 | |
448 | |
430 | void |
449 | void |
431 | aio_close(fh,callback) |
450 | aio_close(fh,callback=&PL_sv_undef) |
432 | InputStream fh |
451 | InputStream fh |
433 | SV * callback |
452 | SV * callback |
434 | PROTOTYPE: $$ |
453 | PROTOTYPE: $;$ |
435 | ALIAS: |
454 | ALIAS: |
436 | aio_close = REQ_CLOSE |
455 | aio_close = REQ_CLOSE |
437 | aio_fsync = REQ_FSYNC |
456 | aio_fsync = REQ_FSYNC |
438 | aio_fdatasync = REQ_FDATASYNC |
457 | aio_fdatasync = REQ_FDATASYNC |
439 | CODE: |
458 | CODE: |
… | |
… | |
451 | |
470 | |
452 | send_req (req); |
471 | send_req (req); |
453 | } |
472 | } |
454 | |
473 | |
455 | void |
474 | void |
456 | aio_read(fh,offset,length,data,dataoffset,callback) |
475 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
457 | InputStream fh |
476 | InputStream fh |
458 | UV offset |
477 | UV offset |
459 | IV length |
478 | IV length |
460 | SV * data |
479 | SV * data |
461 | IV dataoffset |
480 | IV dataoffset |
462 | SV * callback |
481 | SV * callback |
463 | PROTOTYPE: $$$$$$ |
482 | PROTOTYPE: $$$$$;$ |
464 | CODE: |
483 | CODE: |
465 | read_write (aTHX_ 0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
484 | read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
466 | |
485 | |
467 | void |
486 | void |
468 | aio_write(fh,offset,length,data,dataoffset,callback) |
487 | aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
469 | OutputStream fh |
488 | OutputStream fh |
470 | UV offset |
489 | UV offset |
471 | IV length |
490 | IV length |
472 | SV * data |
491 | SV * data |
473 | IV dataoffset |
492 | IV dataoffset |
474 | SV * callback |
493 | SV * callback |
475 | PROTOTYPE: $$$$$$ |
494 | PROTOTYPE: $$$$$;$ |
476 | CODE: |
495 | CODE: |
477 | read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
496 | read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
478 | |
497 | |
479 | void |
498 | void |
480 | aio_readahead(fh,offset,length,callback) |
499 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
481 | InputStream fh |
500 | InputStream fh |
482 | UV offset |
501 | UV offset |
483 | IV length |
502 | IV length |
484 | SV * callback |
503 | SV * callback |
485 | PROTOTYPE: $$$$ |
504 | PROTOTYPE: $$$;$ |
486 | CODE: |
505 | CODE: |
487 | { |
506 | { |
488 | aio_req req; |
507 | aio_req req; |
489 | |
508 | |
490 | if (length < 0) |
509 | if (length < 0) |
… | |
… | |
503 | |
522 | |
504 | send_req (req); |
523 | send_req (req); |
505 | } |
524 | } |
506 | |
525 | |
507 | void |
526 | void |
508 | aio_stat(fh_or_path,callback) |
527 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
509 | SV * fh_or_path |
528 | SV * fh_or_path |
510 | SV * callback |
529 | SV * callback |
511 | PROTOTYPE: $$ |
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512 | ALIAS: |
530 | ALIAS: |
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531 | aio_stat = REQ_STAT |
513 | aio_lstat = 1 |
532 | aio_lstat = REQ_LSTAT |
514 | CODE: |
533 | CODE: |
515 | { |
534 | { |
516 | aio_req req; |
535 | aio_req req; |
517 | |
536 | |
518 | Newz (0, req, 1, aio_cb); |
537 | Newz (0, req, 1, aio_cb); |
… | |
… | |
525 | if (!req->statdata) |
544 | if (!req->statdata) |
526 | croak ("out of memory during aio_req->statdata allocation"); |
545 | croak ("out of memory during aio_req->statdata allocation"); |
527 | |
546 | |
528 | if (SvPOK (fh_or_path)) |
547 | if (SvPOK (fh_or_path)) |
529 | { |
548 | { |
530 | req->type = ix ? REQ_LSTAT : REQ_STAT; |
549 | req->type = ix; |
531 | req->data = newSVsv (fh_or_path); |
550 | req->data = newSVsv (fh_or_path); |
532 | req->dataptr = SvPV_nolen (req->data); |
551 | req->dataptr = SvPV_nolen (req->data); |
533 | } |
552 | } |
534 | else |
553 | else |
535 | { |
554 | { |
… | |
… | |
541 | |
560 | |
542 | send_req (req); |
561 | send_req (req); |
543 | } |
562 | } |
544 | |
563 | |
545 | void |
564 | void |
546 | aio_unlink(pathname,callback) |
565 | aio_unlink(pathname,callback=&PL_sv_undef) |
547 | SV * pathname |
566 | SV * pathname |
548 | SV * callback |
567 | SV * callback |
549 | PROTOTYPE: $$ |
|
|
550 | CODE: |
568 | CODE: |
551 | { |
569 | { |
552 | aio_req req; |
570 | aio_req req; |
553 | |
571 | |
554 | Newz (0, req, 1, aio_cb); |
572 | Newz (0, req, 1, aio_cb); |
… | |
… | |
562 | req->callback = SvREFCNT_inc (callback); |
580 | req->callback = SvREFCNT_inc (callback); |
563 | |
581 | |
564 | send_req (req); |
582 | send_req (req); |
565 | } |
583 | } |
566 | |
584 | |
|
|
585 | void |
|
|
586 | flush() |
|
|
587 | PROTOTYPE: |
|
|
588 | CODE: |
|
|
589 | while (nreqs) |
|
|
590 | { |
|
|
591 | poll_wait (); |
|
|
592 | poll_cb (); |
|
|
593 | } |
|
|
594 | |
|
|
595 | void |
|
|
596 | poll() |
|
|
597 | PROTOTYPE: |
|
|
598 | CODE: |
|
|
599 | if (nreqs) |
|
|
600 | { |
|
|
601 | poll_wait (); |
|
|
602 | poll_cb (); |
|
|
603 | } |
|
|
604 | |
567 | int |
605 | int |
568 | poll_fileno() |
606 | poll_fileno() |
569 | PROTOTYPE: |
607 | PROTOTYPE: |
570 | CODE: |
608 | CODE: |
571 | RETVAL = respipe [0]; |
609 | RETVAL = respipe [0]; |
… | |
… | |
574 | |
612 | |
575 | int |
613 | int |
576 | poll_cb(...) |
614 | poll_cb(...) |
577 | PROTOTYPE: |
615 | PROTOTYPE: |
578 | CODE: |
616 | CODE: |
579 | RETVAL = poll_cb (aTHX); |
617 | RETVAL = poll_cb (); |
580 | OUTPUT: |
618 | OUTPUT: |
581 | RETVAL |
619 | RETVAL |
582 | |
620 | |
583 | void |
621 | void |
584 | poll_wait() |
622 | poll_wait() |