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 | |
7 | #include <sys/types.h> |
10 | #include <sys/types.h> |
8 | #include <sys/stat.h> |
11 | #include <sys/stat.h> |
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12 | |
9 | #include <unistd.h> |
13 | #include <unistd.h> |
10 | #include <fcntl.h> |
14 | #include <fcntl.h> |
11 | #include <signal.h> |
15 | #include <signal.h> |
12 | #include <sched.h> |
16 | #include <sched.h> |
13 | #include <endian.h> |
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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, |
… | |
… | |
34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
35 | REQ_FSYNC, REQ_FDATASYNC, |
35 | REQ_FSYNC, REQ_FDATASYNC, |
36 | }; |
36 | }; |
37 | |
37 | |
38 | typedef struct aio_cb { |
38 | typedef struct aio_cb { |
39 | struct aio_cb *next; |
39 | struct aio_cb *volatile next; |
40 | |
40 | |
41 | int type; |
41 | int type; |
42 | |
42 | |
43 | int fd; |
43 | int fd; |
44 | off_t offset; |
44 | off_t offset; |
45 | size_t length; |
45 | size_t length; |
46 | ssize_t result; |
46 | ssize_t result; |
47 | mode_t mode; /* open */ |
47 | mode_t mode; /* open */ |
48 | int errorno; |
48 | int errorno; |
49 | SV *data, *callback; |
49 | SV *data, *callback, *fh; |
50 | void *dataptr; |
50 | void *dataptr; |
51 | STRLEN dataoffset; |
51 | STRLEN dataoffset; |
52 | |
52 | |
53 | Stat_t *statdata; |
53 | Stat_t *statdata; |
54 | } aio_cb; |
54 | } aio_cb; |
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 volatile int nreqs; |
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60 | static int max_outstanding = 1<<30; |
60 | static int reqpipe[2], respipe[2]; |
61 | static int respipe [2]; |
61 | |
62 | |
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63 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
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64 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
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65 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
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66 | |
62 | static aio_req qs, qe; /* queue start, queue end */ |
67 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
63 | |
68 | static volatile aio_req ress, rese; /* queue start, queue end */ |
64 | static void *aio_proc(void *arg); |
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65 | |
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66 | static void |
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67 | start_thread (void) |
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68 | { |
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69 | sigset_t fullsigset, oldsigset; |
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70 | pthread_t tid; |
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71 | pthread_attr_t attr; |
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72 | |
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73 | pthread_attr_init (&attr); |
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74 | pthread_attr_setstacksize (&attr, STACKSIZE); |
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75 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
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76 | |
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77 | sigfillset (&fullsigset); |
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78 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
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79 | |
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80 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
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81 | started++; |
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82 | |
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83 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
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84 | } |
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85 | |
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86 | static void |
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87 | send_reqs (void) |
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88 | { |
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89 | /* this write is atomic */ |
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90 | while (qs && write (reqpipe[1], &qs, sizeof qs) == sizeof qs) |
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91 | { |
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92 | qs = qs->next; |
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93 | if (!qs) qe = 0; |
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94 | } |
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95 | } |
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96 | |
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97 | static void |
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98 | send_req (aio_req req) |
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99 | { |
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100 | nreqs++; |
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101 | req->next = 0; |
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102 | |
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103 | if (qe) |
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104 | { |
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105 | qe->next = req; |
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106 | qe = req; |
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107 | } |
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108 | else |
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109 | qe = qs = req; |
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110 | |
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111 | send_reqs (); |
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112 | } |
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113 | |
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114 | static void |
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115 | end_thread (void) |
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116 | { |
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117 | aio_req req; |
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118 | New (0, req, 1, aio_cb); |
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119 | req->type = REQ_QUIT; |
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120 | |
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121 | send_req (req); |
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122 | } |
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123 | |
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124 | static void |
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125 | read_write (pTHX_ |
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126 | int dowrite, int fd, off_t offset, size_t length, |
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127 | SV *data, STRLEN dataoffset, SV *callback) |
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128 | { |
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129 | aio_req req; |
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130 | STRLEN svlen; |
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131 | char *svptr = SvPV (data, svlen); |
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132 | |
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133 | SvUPGRADE (data, SVt_PV); |
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134 | SvPOK_on (data); |
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135 | |
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136 | if (dataoffset < 0) |
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137 | dataoffset += svlen; |
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138 | |
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139 | if (dataoffset < 0 || dataoffset > svlen) |
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140 | croak ("data offset outside of string"); |
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141 | |
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142 | if (dowrite) |
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143 | { |
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144 | /* write: check length and adjust. */ |
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145 | if (length < 0 || length + dataoffset > svlen) |
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146 | length = svlen - dataoffset; |
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147 | } |
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148 | else |
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149 | { |
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150 | /* read: grow scalar as necessary */ |
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151 | svptr = SvGROW (data, length + dataoffset); |
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152 | } |
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153 | |
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154 | if (length < 0) |
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155 | croak ("length must not be negative"); |
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156 | |
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157 | Newz (0, req, 1, aio_cb); |
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158 | |
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159 | if (!req) |
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160 | croak ("out of memory during aio_req allocation"); |
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161 | |
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162 | req->type = dowrite ? REQ_WRITE : REQ_READ; |
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163 | req->fd = fd; |
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164 | req->offset = offset; |
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165 | req->length = length; |
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166 | req->data = SvREFCNT_inc (data); |
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167 | req->dataptr = (char *)svptr + dataoffset; |
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168 | req->callback = SvREFCNT_inc (callback); |
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169 | |
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170 | send_req (req); |
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171 | } |
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172 | |
69 | |
173 | static void |
70 | static void |
174 | poll_wait () |
71 | poll_wait () |
175 | { |
72 | { |
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73 | if (nreqs && !ress) |
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74 | { |
176 | fd_set rfd; |
75 | fd_set rfd; |
177 | FD_ZERO(&rfd); |
76 | FD_ZERO(&rfd); |
178 | FD_SET(respipe[0], &rfd); |
77 | FD_SET(respipe [0], &rfd); |
179 | |
78 | |
180 | select (respipe[0] + 1, &rfd, 0, 0, 0); |
79 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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80 | } |
181 | } |
81 | } |
182 | |
82 | |
183 | static int |
83 | static int |
184 | poll_cb (pTHX) |
84 | poll_cb () |
185 | { |
85 | { |
186 | dSP; |
86 | dSP; |
187 | int count = 0; |
87 | int count = 0; |
188 | aio_req req; |
88 | aio_req req, prv; |
189 | |
89 | |
190 | while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req)) |
90 | pthread_mutex_lock (&reslock); |
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91 | |
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92 | { |
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93 | /* read any signals sent by the worker threads */ |
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94 | char buf [32]; |
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95 | while (read (respipe [0], buf, 32) > 0) |
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96 | ; |
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97 | } |
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98 | |
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99 | req = ress; |
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100 | ress = rese = 0; |
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101 | |
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102 | pthread_mutex_unlock (&reslock); |
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103 | |
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104 | while (req) |
191 | { |
105 | { |
192 | nreqs--; |
106 | nreqs--; |
193 | |
107 | |
194 | if (req->type == REQ_QUIT) |
108 | if (req->type == REQ_QUIT) |
195 | started--; |
109 | started--; |
… | |
… | |
203 | + req->result > 0 ? req->result : 0); |
117 | + req->result > 0 ? req->result : 0); |
204 | |
118 | |
205 | if (req->data) |
119 | if (req->data) |
206 | SvREFCNT_dec (req->data); |
120 | SvREFCNT_dec (req->data); |
207 | |
121 | |
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122 | if (req->fh) |
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123 | SvREFCNT_dec (req->fh); |
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124 | |
208 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
125 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
209 | { |
126 | { |
210 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
127 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
211 | PL_laststatval = req->result; |
128 | PL_laststatval = req->result; |
212 | PL_statcache = *(req->statdata); |
129 | PL_statcache = *(req->statdata); |
213 | |
130 | |
214 | Safefree (req->statdata); |
131 | Safefree (req->statdata); |
215 | } |
132 | } |
216 | |
133 | |
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134 | ENTER; |
217 | PUSHMARK (SP); |
135 | PUSHMARK (SP); |
218 | XPUSHs (sv_2mortal (newSViv (req->result))); |
136 | XPUSHs (sv_2mortal (newSViv (req->result))); |
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137 | |
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138 | if (req->type == REQ_OPEN) |
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139 | { |
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140 | /* convert fd to fh */ |
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141 | SV *fh; |
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142 | |
219 | PUTBACK; |
143 | PUTBACK; |
220 | call_sv (req->callback, G_VOID); |
144 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
221 | SPAGAIN; |
145 | SPAGAIN; |
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146 | |
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147 | fh = SvREFCNT_inc (POPs); |
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148 | |
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149 | PUSHMARK (SP); |
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150 | XPUSHs (sv_2mortal (fh)); |
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151 | } |
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152 | |
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153 | if (SvOK (req->callback)) |
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154 | { |
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155 | PUTBACK; |
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156 | call_sv (req->callback, G_VOID | G_EVAL); |
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157 | SPAGAIN; |
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158 | } |
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159 | |
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160 | LEAVE; |
222 | |
161 | |
223 | if (req->callback) |
162 | if (req->callback) |
224 | SvREFCNT_dec (req->callback); |
163 | SvREFCNT_dec (req->callback); |
225 | |
164 | |
226 | errno = errorno; |
165 | errno = errorno; |
227 | count++; |
166 | count++; |
228 | } |
167 | } |
229 | |
168 | |
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169 | prv = req; |
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170 | req = req->next; |
230 | Safefree (req); |
171 | Safefree (prv); |
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172 | |
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173 | /* TODO: croak on errors? */ |
231 | } |
174 | } |
232 | |
175 | |
233 | if (qs) |
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234 | send_reqs (); |
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235 | |
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236 | return count; |
176 | return count; |
237 | } |
177 | } |
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178 | |
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179 | static void *aio_proc(void *arg); |
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180 | |
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181 | static void |
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182 | start_thread (void) |
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183 | { |
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184 | sigset_t fullsigset, oldsigset; |
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185 | pthread_t tid; |
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186 | pthread_attr_t attr; |
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187 | |
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188 | pthread_attr_init (&attr); |
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189 | pthread_attr_setstacksize (&attr, STACKSIZE); |
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190 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
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191 | |
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192 | sigfillset (&fullsigset); |
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193 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
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194 | |
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195 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
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196 | started++; |
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197 | |
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198 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
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199 | } |
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200 | |
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201 | static void |
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202 | send_req (aio_req req) |
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203 | { |
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204 | nreqs++; |
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205 | |
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206 | pthread_mutex_lock (&reqlock); |
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207 | |
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208 | req->next = 0; |
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209 | |
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210 | if (reqe) |
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211 | { |
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212 | reqe->next = req; |
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213 | reqe = req; |
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214 | } |
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215 | else |
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216 | reqe = reqs = req; |
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217 | |
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218 | pthread_cond_signal (&reqwait); |
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219 | pthread_mutex_unlock (&reqlock); |
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220 | |
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221 | while (nreqs > max_outstanding) |
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222 | { |
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223 | poll_wait (); |
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224 | poll_cb (); |
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225 | } |
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226 | } |
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227 | |
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228 | static void |
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229 | end_thread (void) |
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230 | { |
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231 | aio_req req; |
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232 | New (0, req, 1, aio_cb); |
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233 | req->type = REQ_QUIT; |
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234 | |
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235 | send_req (req); |
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236 | } |
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237 | |
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238 | /* work around various missing functions */ |
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239 | |
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240 | #if !HAVE_PREADWRITE |
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241 | # define pread aio_pread |
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242 | # define pwrite aio_pwrite |
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243 | |
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244 | /* |
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245 | * make our pread/pwrite safe against themselves, but not against |
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246 | * normal read/write by using a mutex. slows down execution a lot, |
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247 | * but that's your problem, not mine. |
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248 | */ |
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249 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
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250 | |
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251 | static ssize_t |
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252 | pread (int fd, void *buf, size_t count, off_t offset) |
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253 | { |
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254 | ssize_t res; |
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255 | off_t ooffset; |
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256 | |
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257 | pthread_mutex_lock (&iolock); |
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258 | ooffset = lseek (fd, 0, SEEK_CUR); |
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259 | lseek (fd, offset, SEEK_SET); |
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260 | res = read (fd, buf, count); |
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261 | lseek (fd, ooffset, SEEK_SET); |
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262 | pthread_mutex_unlock (&iolock); |
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263 | |
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264 | return res; |
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265 | } |
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266 | |
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267 | static ssize_t |
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268 | pwrite (int fd, void *buf, size_t count, off_t offset) |
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269 | { |
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270 | ssize_t res; |
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271 | off_t ooffset; |
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272 | |
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273 | pthread_mutex_lock (&iolock); |
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274 | ooffset = lseek (fd, 0, SEEK_CUR); |
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275 | lseek (fd, offset, SEEK_SET); |
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276 | res = write (fd, buf, count); |
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277 | lseek (fd, offset, SEEK_SET); |
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278 | pthread_mutex_unlock (&iolock); |
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279 | |
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280 | return res; |
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281 | } |
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282 | #endif |
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283 | |
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284 | #if !HAVE_FDATASYNC |
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285 | # define fdatasync fsync |
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286 | #endif |
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287 | |
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288 | #if !HAVE_READAHEAD |
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289 | # define readahead aio_readahead |
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290 | |
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291 | static char readahead_buf[4096]; |
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292 | |
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293 | static ssize_t |
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294 | readahead (int fd, off_t offset, size_t count) |
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295 | { |
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296 | while (count > 0) |
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297 | { |
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298 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
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299 | |
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300 | pread (fd, readahead_buf, len, offset); |
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301 | offset += len; |
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302 | count -= len; |
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303 | } |
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304 | |
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305 | errno = 0; |
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306 | } |
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307 | #endif |
238 | |
308 | |
239 | static void * |
309 | static void * |
240 | aio_proc (void *thr_arg) |
310 | aio_proc (void *thr_arg) |
241 | { |
311 | { |
242 | aio_req req; |
312 | aio_req req; |
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313 | int type; |
243 | |
314 | |
244 | /* then loop */ |
315 | do |
245 | while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req)) |
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246 | { |
316 | { |
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317 | pthread_mutex_lock (&reqlock); |
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318 | |
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319 | for (;;) |
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320 | { |
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321 | req = reqs; |
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322 | |
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323 | if (reqs) |
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324 | { |
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325 | reqs = reqs->next; |
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326 | if (!reqs) reqe = 0; |
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327 | } |
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328 | |
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329 | if (req) |
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330 | break; |
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331 | |
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332 | pthread_cond_wait (&reqwait, &reqlock); |
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333 | } |
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334 | |
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335 | pthread_mutex_unlock (&reqlock); |
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336 | |
247 | errno = 0; /* strictly unnecessary */ |
337 | errno = 0; /* strictly unnecessary */ |
248 | |
338 | |
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339 | type = req->type; |
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340 | |
249 | switch (req->type) |
341 | switch (type) |
250 | { |
342 | { |
251 | case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break; |
343 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
252 | case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, req->offset); break; |
344 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
253 | #if SYS_readahead |
345 | |
254 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
346 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
255 | #else |
|
|
256 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
|
|
257 | #endif |
|
|
258 | |
347 | |
259 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
348 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
260 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
349 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
261 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
350 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
262 | |
351 | |
263 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
352 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
264 | case REQ_CLOSE: req->result = close (req->fd); break; |
353 | case REQ_CLOSE: req->result = close (req->fd); break; |
265 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
354 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
266 | |
355 | |
|
|
356 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
267 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
357 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
268 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
|
|
269 | |
358 | |
270 | case REQ_QUIT: |
359 | case REQ_QUIT: |
271 | write (respipe[1], (void *)&req, sizeof (req)); |
360 | break; |
272 | return 0; |
|
|
273 | |
361 | |
274 | default: |
362 | default: |
275 | req->result = ENOSYS; |
363 | req->result = ENOSYS; |
276 | break; |
364 | break; |
277 | } |
365 | } |
278 | |
366 | |
279 | req->errorno = errno; |
367 | req->errorno = errno; |
280 | write (respipe[1], (void *)&req, sizeof (req)); |
368 | |
|
|
369 | pthread_mutex_lock (&reslock); |
|
|
370 | |
|
|
371 | req->next = 0; |
|
|
372 | |
|
|
373 | if (rese) |
|
|
374 | { |
|
|
375 | rese->next = req; |
|
|
376 | rese = req; |
|
|
377 | } |
|
|
378 | else |
|
|
379 | { |
|
|
380 | rese = ress = req; |
|
|
381 | |
|
|
382 | /* write a dummy byte to the pipe so fh becomes ready */ |
|
|
383 | write (respipe [1], &respipe, 1); |
|
|
384 | } |
|
|
385 | |
|
|
386 | pthread_mutex_unlock (&reslock); |
281 | } |
387 | } |
|
|
388 | while (type != REQ_QUIT); |
282 | |
389 | |
283 | return 0; |
390 | return 0; |
284 | } |
391 | } |
285 | |
392 | |
286 | MODULE = IO::AIO PACKAGE = IO::AIO |
393 | MODULE = IO::AIO PACKAGE = IO::AIO |
287 | |
394 | |
|
|
395 | PROTOTYPES: ENABLE |
|
|
396 | |
288 | BOOT: |
397 | BOOT: |
289 | { |
398 | { |
290 | if (pipe (reqpipe) || pipe (respipe)) |
399 | if (pipe (respipe)) |
291 | croak ("unable to initialize request or result pipe"); |
400 | croak ("unable to initialize result pipe"); |
292 | |
401 | |
293 | if (fcntl (reqpipe[1], F_SETFL, O_NONBLOCK)) |
402 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
294 | croak ("cannot set result pipe to nonblocking mode"); |
403 | croak ("cannot set result pipe to nonblocking mode"); |
295 | |
404 | |
296 | if (fcntl (respipe[0], F_SETFL, O_NONBLOCK)) |
405 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
297 | croak ("cannot set result pipe to nonblocking mode"); |
406 | croak ("cannot set result pipe to nonblocking mode"); |
298 | } |
407 | } |
299 | |
408 | |
300 | void |
409 | void |
301 | min_parallel(nthreads) |
410 | min_parallel(nthreads) |
… | |
… | |
319 | } |
428 | } |
320 | |
429 | |
321 | while (started > nthreads) |
430 | while (started > nthreads) |
322 | { |
431 | { |
323 | poll_wait (); |
432 | poll_wait (); |
324 | poll_cb (aTHX); |
433 | poll_cb (); |
325 | } |
434 | } |
326 | } |
435 | } |
327 | |
436 | |
|
|
437 | int |
|
|
438 | max_outstanding(nreqs) |
|
|
439 | int nreqs |
|
|
440 | PROTOTYPE: $ |
|
|
441 | CODE: |
|
|
442 | RETVAL = max_outstanding; |
|
|
443 | max_outstanding = nreqs; |
|
|
444 | |
328 | void |
445 | void |
329 | aio_open(pathname,flags,mode,callback) |
446 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
330 | SV * pathname |
447 | SV * pathname |
331 | int flags |
448 | int flags |
332 | int mode |
449 | int mode |
333 | SV * callback |
450 | SV * callback |
334 | PROTOTYPE: $$$$ |
451 | PROTOTYPE: $$$;$ |
335 | CODE: |
452 | CODE: |
336 | { |
453 | { |
337 | aio_req req; |
454 | aio_req req; |
338 | |
455 | |
339 | Newz (0, req, 1, aio_cb); |
456 | Newz (0, req, 1, aio_cb); |
… | |
… | |
350 | |
467 | |
351 | send_req (req); |
468 | send_req (req); |
352 | } |
469 | } |
353 | |
470 | |
354 | void |
471 | void |
355 | aio_close(fh,callback) |
472 | aio_close(fh,callback=&PL_sv_undef) |
356 | InputStream fh |
473 | SV * fh |
357 | SV * callback |
474 | SV * callback |
358 | PROTOTYPE: $$ |
475 | PROTOTYPE: $;$ |
359 | ALIAS: |
476 | ALIAS: |
360 | aio_close = REQ_CLOSE |
477 | aio_close = REQ_CLOSE |
361 | aio_fsync = REQ_FSYNC |
478 | aio_fsync = REQ_FSYNC |
362 | aio_fdatasync = REQ_FDATASYNC |
479 | aio_fdatasync = REQ_FDATASYNC |
363 | CODE: |
480 | CODE: |
… | |
… | |
368 | |
485 | |
369 | if (!req) |
486 | if (!req) |
370 | croak ("out of memory during aio_req allocation"); |
487 | croak ("out of memory during aio_req allocation"); |
371 | |
488 | |
372 | req->type = ix; |
489 | req->type = ix; |
|
|
490 | req->fh = newSVsv (fh); |
373 | req->fd = PerlIO_fileno (fh); |
491 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
374 | req->callback = SvREFCNT_inc (callback); |
492 | req->callback = SvREFCNT_inc (callback); |
375 | |
493 | |
376 | send_req (req); |
494 | send_req (req); |
377 | } |
495 | } |
378 | |
496 | |
379 | void |
497 | void |
380 | aio_read(fh,offset,length,data,dataoffset,callback) |
498 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
381 | InputStream fh |
499 | SV * fh |
382 | UV offset |
500 | UV offset |
383 | IV length |
501 | IV length |
384 | SV * data |
502 | SV * data |
385 | IV dataoffset |
503 | IV dataoffset |
386 | SV * callback |
504 | SV * callback |
|
|
505 | ALIAS: |
|
|
506 | aio_read = REQ_READ |
|
|
507 | aio_write = REQ_WRITE |
387 | PROTOTYPE: $$$$$$ |
508 | PROTOTYPE: $$$$$;$ |
388 | CODE: |
509 | CODE: |
389 | read_write (aTHX_ 0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
390 | |
|
|
391 | void |
|
|
392 | aio_write(fh,offset,length,data,dataoffset,callback) |
|
|
393 | OutputStream fh |
|
|
394 | UV offset |
|
|
395 | IV length |
|
|
396 | SV * data |
|
|
397 | IV dataoffset |
|
|
398 | SV * callback |
|
|
399 | PROTOTYPE: $$$$$$ |
|
|
400 | CODE: |
|
|
401 | read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
402 | |
|
|
403 | void |
|
|
404 | aio_readahead(fh,offset,length,callback) |
|
|
405 | InputStream fh |
|
|
406 | UV offset |
|
|
407 | IV length |
|
|
408 | SV * callback |
|
|
409 | PROTOTYPE: $$$$ |
|
|
410 | CODE: |
|
|
411 | { |
510 | { |
412 | aio_req req; |
511 | aio_req req; |
|
|
512 | STRLEN svlen; |
|
|
513 | char *svptr = SvPVbyte (data, svlen); |
|
|
514 | |
|
|
515 | SvUPGRADE (data, SVt_PV); |
|
|
516 | SvPOK_on (data); |
|
|
517 | |
|
|
518 | if (dataoffset < 0) |
|
|
519 | dataoffset += svlen; |
|
|
520 | |
|
|
521 | if (dataoffset < 0 || dataoffset > svlen) |
|
|
522 | croak ("data offset outside of string"); |
|
|
523 | |
|
|
524 | if (ix == REQ_WRITE) |
|
|
525 | { |
|
|
526 | /* write: check length and adjust. */ |
|
|
527 | if (length < 0 || length + dataoffset > svlen) |
|
|
528 | length = svlen - dataoffset; |
|
|
529 | } |
|
|
530 | else |
|
|
531 | { |
|
|
532 | /* read: grow scalar as necessary */ |
|
|
533 | svptr = SvGROW (data, length + dataoffset); |
|
|
534 | } |
413 | |
535 | |
414 | if (length < 0) |
536 | if (length < 0) |
415 | croak ("length must not be negative"); |
537 | croak ("length must not be negative"); |
416 | |
538 | |
417 | Newz (0, req, 1, aio_cb); |
539 | Newz (0, req, 1, aio_cb); |
418 | |
540 | |
419 | if (!req) |
541 | if (!req) |
420 | croak ("out of memory during aio_req allocation"); |
542 | croak ("out of memory during aio_req allocation"); |
421 | |
543 | |
|
|
544 | req->type = ix; |
|
|
545 | req->fh = newSVsv (fh); |
|
|
546 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
|
|
547 | : IoOFP (sv_2io (fh))); |
|
|
548 | req->offset = offset; |
|
|
549 | req->length = length; |
|
|
550 | req->data = SvREFCNT_inc (data); |
|
|
551 | req->dataptr = (char *)svptr + dataoffset; |
|
|
552 | req->callback = SvREFCNT_inc (callback); |
|
|
553 | |
|
|
554 | send_req (req); |
|
|
555 | } |
|
|
556 | |
|
|
557 | void |
|
|
558 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
|
|
559 | SV * fh |
|
|
560 | UV offset |
|
|
561 | IV length |
|
|
562 | SV * callback |
|
|
563 | PROTOTYPE: $$$;$ |
|
|
564 | CODE: |
|
|
565 | { |
|
|
566 | aio_req req; |
|
|
567 | |
|
|
568 | if (length < 0) |
|
|
569 | croak ("length must not be negative"); |
|
|
570 | |
|
|
571 | Newz (0, req, 1, aio_cb); |
|
|
572 | |
|
|
573 | if (!req) |
|
|
574 | croak ("out of memory during aio_req allocation"); |
|
|
575 | |
422 | req->type = REQ_READAHEAD; |
576 | req->type = REQ_READAHEAD; |
|
|
577 | req->fh = newSVsv (fh); |
423 | req->fd = PerlIO_fileno (fh); |
578 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
424 | req->offset = offset; |
579 | req->offset = offset; |
425 | req->length = length; |
580 | req->length = length; |
426 | req->callback = SvREFCNT_inc (callback); |
581 | req->callback = SvREFCNT_inc (callback); |
427 | |
582 | |
428 | send_req (req); |
583 | send_req (req); |
429 | } |
584 | } |
430 | |
585 | |
431 | void |
586 | void |
432 | aio_stat(fh_or_path,callback) |
587 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
433 | SV * fh_or_path |
588 | SV * fh_or_path |
434 | SV * callback |
589 | SV * callback |
435 | PROTOTYPE: $$ |
|
|
436 | ALIAS: |
590 | ALIAS: |
|
|
591 | aio_stat = REQ_STAT |
437 | aio_lstat = 1 |
592 | aio_lstat = REQ_LSTAT |
438 | CODE: |
593 | CODE: |
439 | { |
594 | { |
440 | aio_req req; |
595 | aio_req req; |
441 | |
596 | |
442 | Newz (0, req, 1, aio_cb); |
597 | Newz (0, req, 1, aio_cb); |
… | |
… | |
449 | if (!req->statdata) |
604 | if (!req->statdata) |
450 | croak ("out of memory during aio_req->statdata allocation"); |
605 | croak ("out of memory during aio_req->statdata allocation"); |
451 | |
606 | |
452 | if (SvPOK (fh_or_path)) |
607 | if (SvPOK (fh_or_path)) |
453 | { |
608 | { |
454 | req->type = ix ? REQ_LSTAT : REQ_STAT; |
609 | req->type = ix; |
455 | req->data = newSVsv (fh_or_path); |
610 | req->data = newSVsv (fh_or_path); |
456 | req->dataptr = SvPV_nolen (req->data); |
611 | req->dataptr = SvPV_nolen (req->data); |
457 | } |
612 | } |
458 | else |
613 | else |
459 | { |
614 | { |
460 | req->type = REQ_FSTAT; |
615 | req->type = REQ_FSTAT; |
|
|
616 | req->fh = newSVsv (fh_or_path); |
461 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
617 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
462 | } |
618 | } |
463 | |
619 | |
464 | req->callback = SvREFCNT_inc (callback); |
620 | req->callback = SvREFCNT_inc (callback); |
465 | |
621 | |
466 | send_req (req); |
622 | send_req (req); |
467 | } |
623 | } |
468 | |
624 | |
469 | void |
625 | void |
470 | aio_unlink(pathname,callback) |
626 | aio_unlink(pathname,callback=&PL_sv_undef) |
471 | SV * pathname |
627 | SV * pathname |
472 | SV * callback |
628 | SV * callback |
473 | PROTOTYPE: $$ |
|
|
474 | CODE: |
629 | CODE: |
475 | { |
630 | { |
476 | aio_req req; |
631 | aio_req req; |
477 | |
632 | |
478 | Newz (0, req, 1, aio_cb); |
633 | Newz (0, req, 1, aio_cb); |
… | |
… | |
486 | req->callback = SvREFCNT_inc (callback); |
641 | req->callback = SvREFCNT_inc (callback); |
487 | |
642 | |
488 | send_req (req); |
643 | send_req (req); |
489 | } |
644 | } |
490 | |
645 | |
|
|
646 | void |
|
|
647 | flush() |
|
|
648 | PROTOTYPE: |
|
|
649 | CODE: |
|
|
650 | while (nreqs) |
|
|
651 | { |
|
|
652 | poll_wait (); |
|
|
653 | poll_cb (); |
|
|
654 | } |
|
|
655 | |
|
|
656 | void |
|
|
657 | poll() |
|
|
658 | PROTOTYPE: |
|
|
659 | CODE: |
|
|
660 | if (nreqs) |
|
|
661 | { |
|
|
662 | poll_wait (); |
|
|
663 | poll_cb (); |
|
|
664 | } |
|
|
665 | |
491 | int |
666 | int |
492 | poll_fileno() |
667 | poll_fileno() |
493 | PROTOTYPE: |
668 | PROTOTYPE: |
494 | CODE: |
669 | CODE: |
495 | RETVAL = respipe[0]; |
670 | RETVAL = respipe [0]; |
496 | OUTPUT: |
671 | OUTPUT: |
497 | RETVAL |
672 | RETVAL |
498 | |
673 | |
499 | int |
674 | int |
500 | poll_cb(...) |
675 | poll_cb(...) |
501 | PROTOTYPE: |
676 | PROTOTYPE: |
502 | CODE: |
677 | CODE: |
503 | RETVAL = poll_cb (aTHX); |
678 | RETVAL = poll_cb (); |
504 | OUTPUT: |
679 | OUTPUT: |
505 | RETVAL |
680 | RETVAL |
506 | |
681 | |
507 | void |
682 | void |
508 | poll_wait() |
683 | poll_wait() |
509 | PROTOTYPE: |
684 | PROTOTYPE: |
510 | CODE: |
685 | CODE: |
|
|
686 | if (nreqs) |
511 | poll_wait (); |
687 | poll_wait (); |
512 | |
688 | |
513 | int |
689 | int |
514 | nreqs() |
690 | nreqs() |
515 | PROTOTYPE: |
691 | PROTOTYPE: |
516 | CODE: |
692 | CODE: |