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 | #include "autoconf/config.h" |
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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> |
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14 | |
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15 | #ifndef _REENTRANT |
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16 | # define _REENTRANT 1 |
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17 | #endif |
13 | #include <endian.h> |
18 | #include <errno.h> |
14 | |
19 | |
15 | #include <pthread.h> |
20 | #include <pthread.h> |
16 | #include <sys/syscall.h> |
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17 | |
21 | |
18 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
22 | 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 ;) */ |
23 | 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 ;) */ |
24 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
21 | |
25 | |
22 | #if __i386 || __amd64 |
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23 | # define STACKSIZE ( 256 * sizeof (long)) |
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24 | #elif __ia64 |
26 | #if __ia64 |
25 | # define STACKSIZE (8192 * sizeof (long)) |
27 | # define STACKSIZE 65536 |
26 | #else |
28 | #else |
27 | # define STACKSIZE ( 512 * sizeof (long)) |
29 | # define STACKSIZE 4096 |
28 | #endif |
30 | #endif |
29 | |
31 | |
30 | enum { |
32 | enum { |
31 | REQ_QUIT, |
33 | REQ_QUIT, |
32 | REQ_OPEN, REQ_CLOSE, |
34 | REQ_OPEN, REQ_CLOSE, |
… | |
… | |
34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
36 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
35 | REQ_FSYNC, REQ_FDATASYNC, |
37 | REQ_FSYNC, REQ_FDATASYNC, |
36 | }; |
38 | }; |
37 | |
39 | |
38 | typedef struct aio_cb { |
40 | typedef struct aio_cb { |
39 | struct aio_cb *next; |
41 | struct aio_cb *volatile next; |
40 | |
42 | |
41 | int type; |
43 | int type; |
42 | |
44 | |
43 | int fd; |
45 | int fd; |
44 | off_t offset; |
46 | off_t offset; |
45 | size_t length; |
47 | size_t length; |
46 | ssize_t result; |
48 | ssize_t result; |
47 | mode_t mode; /* open */ |
49 | mode_t mode; /* open */ |
48 | int errorno; |
50 | int errorno; |
49 | SV *data, *callback; |
51 | SV *data, *callback, *fh; |
50 | void *dataptr; |
52 | void *dataptr; |
51 | STRLEN dataoffset; |
53 | STRLEN dataoffset; |
52 | |
54 | |
53 | Stat_t *statdata; |
55 | Stat_t *statdata; |
54 | } aio_cb; |
56 | } aio_cb; |
55 | |
57 | |
56 | typedef aio_cb *aio_req; |
58 | typedef aio_cb *aio_req; |
57 | |
59 | |
58 | static int started; |
60 | static int started; |
59 | static int nreqs; |
61 | static volatile int nreqs; |
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62 | static int max_outstanding = 1<<30; |
60 | static int reqpipe[2], respipe[2]; |
63 | static int respipe [2]; |
61 | |
64 | |
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65 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
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66 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
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67 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
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68 | |
62 | static aio_req qs, qe; /* queue start, queue end */ |
69 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
63 | |
70 | 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 | |
71 | |
173 | static void |
72 | static void |
174 | poll_wait () |
73 | poll_wait () |
175 | { |
74 | { |
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75 | if (nreqs && !ress) |
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76 | { |
176 | fd_set rfd; |
77 | fd_set rfd; |
177 | FD_ZERO(&rfd); |
78 | FD_ZERO(&rfd); |
178 | FD_SET(respipe[0], &rfd); |
79 | FD_SET(respipe [0], &rfd); |
179 | |
80 | |
180 | select (respipe[0] + 1, &rfd, 0, 0, 0); |
81 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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82 | } |
181 | } |
83 | } |
182 | |
84 | |
183 | static int |
85 | static int |
184 | poll_cb (pTHX) |
86 | poll_cb () |
185 | { |
87 | { |
186 | dSP; |
88 | dSP; |
187 | int count = 0; |
89 | int count = 0; |
188 | aio_req req; |
90 | aio_req req, prv; |
189 | |
91 | |
190 | while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req)) |
92 | pthread_mutex_lock (&reslock); |
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93 | |
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94 | { |
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95 | /* read any signals sent by the worker threads */ |
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96 | char buf [32]; |
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97 | while (read (respipe [0], buf, 32) > 0) |
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98 | ; |
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99 | } |
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100 | |
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101 | req = ress; |
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102 | ress = rese = 0; |
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103 | |
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104 | pthread_mutex_unlock (&reslock); |
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105 | |
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106 | while (req) |
191 | { |
107 | { |
192 | nreqs--; |
108 | nreqs--; |
193 | |
109 | |
194 | if (req->type == REQ_QUIT) |
110 | if (req->type == REQ_QUIT) |
195 | started--; |
111 | started--; |
… | |
… | |
203 | + req->result > 0 ? req->result : 0); |
119 | + req->result > 0 ? req->result : 0); |
204 | |
120 | |
205 | if (req->data) |
121 | if (req->data) |
206 | SvREFCNT_dec (req->data); |
122 | SvREFCNT_dec (req->data); |
207 | |
123 | |
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124 | if (req->fh) |
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125 | SvREFCNT_dec (req->fh); |
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126 | |
208 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
127 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
209 | { |
128 | { |
210 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
129 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
211 | PL_laststatval = req->result; |
130 | PL_laststatval = req->result; |
212 | PL_statcache = *(req->statdata); |
131 | PL_statcache = *(req->statdata); |
213 | |
132 | |
214 | Safefree (req->statdata); |
133 | Safefree (req->statdata); |
215 | } |
134 | } |
216 | |
135 | |
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136 | ENTER; |
217 | PUSHMARK (SP); |
137 | PUSHMARK (SP); |
218 | XPUSHs (sv_2mortal (newSViv (req->result))); |
138 | XPUSHs (sv_2mortal (newSViv (req->result))); |
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139 | |
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140 | if (req->type == REQ_OPEN) |
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141 | { |
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142 | /* convert fd to fh */ |
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143 | SV *fh; |
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144 | |
219 | PUTBACK; |
145 | PUTBACK; |
220 | call_sv (req->callback, G_VOID); |
146 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
221 | SPAGAIN; |
147 | SPAGAIN; |
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148 | |
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149 | fh = SvREFCNT_inc (POPs); |
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150 | |
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151 | PUSHMARK (SP); |
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152 | XPUSHs (sv_2mortal (fh)); |
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153 | } |
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154 | |
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155 | if (SvOK (req->callback)) |
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156 | { |
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157 | PUTBACK; |
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158 | call_sv (req->callback, G_VOID | G_EVAL); |
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159 | SPAGAIN; |
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160 | } |
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161 | |
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162 | LEAVE; |
222 | |
163 | |
223 | if (req->callback) |
164 | if (req->callback) |
224 | SvREFCNT_dec (req->callback); |
165 | SvREFCNT_dec (req->callback); |
225 | |
166 | |
226 | errno = errorno; |
167 | errno = errorno; |
227 | count++; |
168 | count++; |
228 | } |
169 | } |
229 | |
170 | |
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171 | prv = req; |
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172 | req = req->next; |
230 | Safefree (req); |
173 | Safefree (prv); |
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174 | |
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175 | /* TODO: croak on errors? */ |
231 | } |
176 | } |
232 | |
177 | |
233 | if (qs) |
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234 | send_reqs (); |
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235 | |
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236 | return count; |
178 | return count; |
237 | } |
179 | } |
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180 | |
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181 | static void *aio_proc(void *arg); |
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182 | |
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183 | static void |
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184 | start_thread (void) |
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185 | { |
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186 | sigset_t fullsigset, oldsigset; |
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187 | pthread_t tid; |
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188 | pthread_attr_t attr; |
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189 | |
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190 | pthread_attr_init (&attr); |
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191 | pthread_attr_setstacksize (&attr, STACKSIZE); |
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192 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
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193 | |
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194 | sigfillset (&fullsigset); |
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195 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
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196 | |
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197 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
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198 | started++; |
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199 | |
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200 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
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201 | } |
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202 | |
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203 | static void |
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204 | send_req (aio_req req) |
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205 | { |
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206 | nreqs++; |
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207 | |
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208 | pthread_mutex_lock (&reqlock); |
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209 | |
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210 | req->next = 0; |
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211 | |
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212 | if (reqe) |
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213 | { |
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214 | reqe->next = req; |
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215 | reqe = req; |
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216 | } |
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217 | else |
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218 | reqe = reqs = req; |
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219 | |
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220 | pthread_cond_signal (&reqwait); |
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221 | pthread_mutex_unlock (&reqlock); |
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222 | |
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223 | while (nreqs > max_outstanding) |
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224 | { |
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225 | poll_wait (); |
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226 | poll_cb (); |
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227 | } |
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228 | } |
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229 | |
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230 | static void |
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231 | end_thread (void) |
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232 | { |
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233 | aio_req req; |
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234 | New (0, req, 1, aio_cb); |
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235 | req->type = REQ_QUIT; |
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236 | |
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237 | send_req (req); |
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238 | } |
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239 | |
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240 | /* work around various missing functions */ |
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241 | |
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242 | #if !HAVE_PREADWRITE |
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243 | # define pread aio_pread |
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244 | # define pwrite aio_pwrite |
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245 | |
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246 | /* |
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247 | * make our pread/pwrite safe against themselves, but not against |
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248 | * normal read/write by using a mutex. slows down execution a lot, |
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249 | * but that's your problem, not mine. |
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250 | */ |
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251 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
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252 | |
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253 | static ssize_t |
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254 | pread (int fd, void *buf, size_t count, off_t offset) |
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255 | { |
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256 | ssize_t res; |
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257 | off_t ooffset; |
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258 | |
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259 | pthread_mutex_lock (&iolock); |
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260 | ooffset = lseek (fd, 0, SEEK_CUR); |
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261 | lseek (fd, offset, SEEK_SET); |
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262 | res = read (fd, buf, count); |
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263 | lseek (fd, ooffset, SEEK_SET); |
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264 | pthread_mutex_unlock (&iolock); |
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265 | |
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266 | return res; |
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267 | } |
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268 | |
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269 | static ssize_t |
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270 | pwrite (int fd, void *buf, size_t count, off_t offset) |
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271 | { |
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272 | ssize_t res; |
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273 | off_t ooffset; |
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274 | |
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275 | pthread_mutex_lock (&iolock); |
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276 | ooffset = lseek (fd, 0, SEEK_CUR); |
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277 | lseek (fd, offset, SEEK_SET); |
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278 | res = write (fd, buf, count); |
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279 | lseek (fd, offset, SEEK_SET); |
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280 | pthread_mutex_unlock (&iolock); |
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281 | |
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282 | return res; |
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283 | } |
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284 | #endif |
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285 | |
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286 | #if !HAVE_FDATASYNC |
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287 | # define fdatasync fsync |
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288 | #endif |
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289 | |
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290 | #if !HAVE_READAHEAD |
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291 | # define readahead aio_readahead |
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292 | |
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293 | static char readahead_buf[4096]; |
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294 | |
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295 | static ssize_t |
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296 | readahead (int fd, off_t offset, size_t count) |
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297 | { |
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298 | while (count > 0) |
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299 | { |
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300 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
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301 | |
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302 | pread (fd, readahead_buf, len, offset); |
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303 | offset += len; |
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304 | count -= len; |
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305 | } |
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306 | |
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307 | errno = 0; |
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308 | } |
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309 | #endif |
238 | |
310 | |
239 | static void * |
311 | static void * |
240 | aio_proc (void *thr_arg) |
312 | aio_proc (void *thr_arg) |
241 | { |
313 | { |
242 | aio_req req; |
314 | aio_req req; |
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315 | int type; |
243 | |
316 | |
244 | /* then loop */ |
317 | do |
245 | while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req)) |
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246 | { |
318 | { |
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319 | pthread_mutex_lock (&reqlock); |
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320 | |
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321 | for (;;) |
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322 | { |
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323 | req = reqs; |
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324 | |
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325 | if (reqs) |
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326 | { |
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327 | reqs = reqs->next; |
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328 | if (!reqs) reqe = 0; |
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329 | } |
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330 | |
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331 | if (req) |
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332 | break; |
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333 | |
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334 | pthread_cond_wait (&reqwait, &reqlock); |
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335 | } |
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336 | |
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337 | pthread_mutex_unlock (&reqlock); |
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338 | |
247 | errno = 0; /* strictly unnecessary */ |
339 | errno = 0; /* strictly unnecessary */ |
248 | |
340 | |
|
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341 | type = req->type; |
|
|
342 | |
249 | switch (req->type) |
343 | switch (type) |
250 | { |
344 | { |
251 | case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break; |
345 | 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; |
346 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
253 | #if SYS_readahead |
347 | |
254 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
348 | 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 | |
349 | |
259 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
350 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
260 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
351 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
261 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
352 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
262 | |
353 | |
263 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
354 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
264 | case REQ_CLOSE: req->result = close (req->fd); break; |
355 | case REQ_CLOSE: req->result = close (req->fd); break; |
265 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
356 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
266 | |
357 | |
|
|
358 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
267 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
359 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
268 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
|
|
269 | |
360 | |
270 | case REQ_QUIT: |
361 | case REQ_QUIT: |
271 | write (respipe[1], (void *)&req, sizeof (req)); |
362 | break; |
272 | return 0; |
|
|
273 | |
363 | |
274 | default: |
364 | default: |
275 | req->result = ENOSYS; |
365 | req->result = ENOSYS; |
276 | break; |
366 | break; |
277 | } |
367 | } |
278 | |
368 | |
279 | req->errorno = errno; |
369 | req->errorno = errno; |
280 | write (respipe[1], (void *)&req, sizeof (req)); |
370 | |
|
|
371 | pthread_mutex_lock (&reslock); |
|
|
372 | |
|
|
373 | req->next = 0; |
|
|
374 | |
|
|
375 | if (rese) |
|
|
376 | { |
|
|
377 | rese->next = req; |
|
|
378 | rese = req; |
|
|
379 | } |
|
|
380 | else |
|
|
381 | { |
|
|
382 | rese = ress = req; |
|
|
383 | |
|
|
384 | /* write a dummy byte to the pipe so fh becomes ready */ |
|
|
385 | write (respipe [1], &respipe, 1); |
|
|
386 | } |
|
|
387 | |
|
|
388 | pthread_mutex_unlock (&reslock); |
281 | } |
389 | } |
|
|
390 | while (type != REQ_QUIT); |
282 | |
391 | |
283 | return 0; |
392 | return 0; |
284 | } |
393 | } |
285 | |
394 | |
286 | MODULE = IO::AIO PACKAGE = IO::AIO |
395 | MODULE = IO::AIO PACKAGE = IO::AIO |
287 | |
396 | |
|
|
397 | PROTOTYPES: ENABLE |
|
|
398 | |
288 | BOOT: |
399 | BOOT: |
289 | { |
400 | { |
290 | if (pipe (reqpipe) || pipe (respipe)) |
401 | if (pipe (respipe)) |
291 | croak ("unable to initialize request or result pipe"); |
402 | croak ("unable to initialize result pipe"); |
292 | |
403 | |
293 | if (fcntl (reqpipe[1], F_SETFL, O_NONBLOCK)) |
404 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
294 | croak ("cannot set result pipe to nonblocking mode"); |
405 | croak ("cannot set result pipe to nonblocking mode"); |
295 | |
406 | |
296 | if (fcntl (respipe[0], F_SETFL, O_NONBLOCK)) |
407 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
297 | croak ("cannot set result pipe to nonblocking mode"); |
408 | croak ("cannot set result pipe to nonblocking mode"); |
298 | } |
409 | } |
299 | |
410 | |
300 | void |
411 | void |
301 | min_parallel(nthreads) |
412 | min_parallel(nthreads) |
… | |
… | |
319 | } |
430 | } |
320 | |
431 | |
321 | while (started > nthreads) |
432 | while (started > nthreads) |
322 | { |
433 | { |
323 | poll_wait (); |
434 | poll_wait (); |
324 | poll_cb (aTHX); |
435 | poll_cb (); |
325 | } |
436 | } |
326 | } |
437 | } |
327 | |
438 | |
|
|
439 | int |
|
|
440 | max_outstanding(nreqs) |
|
|
441 | int nreqs |
|
|
442 | PROTOTYPE: $ |
|
|
443 | CODE: |
|
|
444 | RETVAL = max_outstanding; |
|
|
445 | max_outstanding = nreqs; |
|
|
446 | |
328 | void |
447 | void |
329 | aio_open(pathname,flags,mode,callback) |
448 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
330 | SV * pathname |
449 | SV * pathname |
331 | int flags |
450 | int flags |
332 | int mode |
451 | int mode |
333 | SV * callback |
452 | SV * callback |
334 | PROTOTYPE: $$$$ |
453 | PROTOTYPE: $$$;$ |
335 | CODE: |
454 | CODE: |
336 | { |
455 | { |
337 | aio_req req; |
456 | aio_req req; |
338 | |
457 | |
339 | Newz (0, req, 1, aio_cb); |
458 | Newz (0, req, 1, aio_cb); |
… | |
… | |
350 | |
469 | |
351 | send_req (req); |
470 | send_req (req); |
352 | } |
471 | } |
353 | |
472 | |
354 | void |
473 | void |
355 | aio_close(fh,callback) |
474 | aio_close(fh,callback=&PL_sv_undef) |
356 | InputStream fh |
475 | SV * fh |
357 | SV * callback |
476 | SV * callback |
358 | PROTOTYPE: $$ |
477 | PROTOTYPE: $;$ |
359 | ALIAS: |
478 | ALIAS: |
360 | aio_close = REQ_CLOSE |
479 | aio_close = REQ_CLOSE |
361 | aio_fsync = REQ_FSYNC |
480 | aio_fsync = REQ_FSYNC |
362 | aio_fdatasync = REQ_FDATASYNC |
481 | aio_fdatasync = REQ_FDATASYNC |
363 | CODE: |
482 | CODE: |
… | |
… | |
368 | |
487 | |
369 | if (!req) |
488 | if (!req) |
370 | croak ("out of memory during aio_req allocation"); |
489 | croak ("out of memory during aio_req allocation"); |
371 | |
490 | |
372 | req->type = ix; |
491 | req->type = ix; |
|
|
492 | req->fh = newSVsv (fh); |
373 | req->fd = PerlIO_fileno (fh); |
493 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
374 | req->callback = SvREFCNT_inc (callback); |
494 | req->callback = SvREFCNT_inc (callback); |
375 | |
495 | |
376 | send_req (req); |
496 | send_req (req); |
377 | } |
497 | } |
378 | |
498 | |
379 | void |
499 | void |
380 | aio_read(fh,offset,length,data,dataoffset,callback) |
500 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
381 | InputStream fh |
501 | SV * fh |
382 | UV offset |
502 | UV offset |
383 | IV length |
503 | IV length |
384 | SV * data |
504 | SV * data |
385 | IV dataoffset |
505 | IV dataoffset |
386 | SV * callback |
506 | SV * callback |
|
|
507 | ALIAS: |
|
|
508 | aio_read = REQ_READ |
|
|
509 | aio_write = REQ_WRITE |
387 | PROTOTYPE: $$$$$$ |
510 | PROTOTYPE: $$$$$;$ |
388 | CODE: |
511 | CODE: |
389 | read_write (aTHX_ 0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
390 | |
|
|
391 | void |
|
|
392 | aio_write(fh,offset,length,data,dataoffset,callback) |
|
|
393 | OutputStream fh |
|
|
394 | UV offset |
|
|
395 | IV length |
|
|
396 | SV * data |
|
|
397 | IV dataoffset |
|
|
398 | SV * callback |
|
|
399 | PROTOTYPE: $$$$$$ |
|
|
400 | CODE: |
|
|
401 | read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
402 | |
|
|
403 | void |
|
|
404 | aio_readahead(fh,offset,length,callback) |
|
|
405 | InputStream fh |
|
|
406 | UV offset |
|
|
407 | IV length |
|
|
408 | SV * callback |
|
|
409 | PROTOTYPE: $$$$ |
|
|
410 | CODE: |
|
|
411 | { |
512 | { |
412 | aio_req req; |
513 | aio_req req; |
|
|
514 | STRLEN svlen; |
|
|
515 | char *svptr = SvPV (data, svlen); |
|
|
516 | |
|
|
517 | SvUPGRADE (data, SVt_PV); |
|
|
518 | SvPOK_on (data); |
|
|
519 | |
|
|
520 | if (dataoffset < 0) |
|
|
521 | dataoffset += svlen; |
|
|
522 | |
|
|
523 | if (dataoffset < 0 || dataoffset > svlen) |
|
|
524 | croak ("data offset outside of string"); |
|
|
525 | |
|
|
526 | if (ix == REQ_WRITE) |
|
|
527 | { |
|
|
528 | /* write: check length and adjust. */ |
|
|
529 | if (length < 0 || length + dataoffset > svlen) |
|
|
530 | length = svlen - dataoffset; |
|
|
531 | } |
|
|
532 | else |
|
|
533 | { |
|
|
534 | /* read: grow scalar as necessary */ |
|
|
535 | svptr = SvGROW (data, length + dataoffset); |
|
|
536 | } |
413 | |
537 | |
414 | if (length < 0) |
538 | if (length < 0) |
415 | croak ("length must not be negative"); |
539 | croak ("length must not be negative"); |
416 | |
540 | |
417 | Newz (0, req, 1, aio_cb); |
541 | Newz (0, req, 1, aio_cb); |
418 | |
542 | |
419 | if (!req) |
543 | if (!req) |
420 | croak ("out of memory during aio_req allocation"); |
544 | croak ("out of memory during aio_req allocation"); |
421 | |
545 | |
|
|
546 | req->type = ix; |
|
|
547 | req->fh = newSVsv (fh); |
|
|
548 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
|
|
549 | : IoOFP (sv_2io (fh))); |
|
|
550 | req->offset = offset; |
|
|
551 | req->length = length; |
|
|
552 | req->data = SvREFCNT_inc (data); |
|
|
553 | req->dataptr = (char *)svptr + dataoffset; |
|
|
554 | req->callback = SvREFCNT_inc (callback); |
|
|
555 | |
|
|
556 | send_req (req); |
|
|
557 | } |
|
|
558 | |
|
|
559 | void |
|
|
560 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
|
|
561 | SV * fh |
|
|
562 | UV offset |
|
|
563 | IV length |
|
|
564 | SV * callback |
|
|
565 | PROTOTYPE: $$$;$ |
|
|
566 | CODE: |
|
|
567 | { |
|
|
568 | aio_req req; |
|
|
569 | |
|
|
570 | if (length < 0) |
|
|
571 | croak ("length must not be negative"); |
|
|
572 | |
|
|
573 | Newz (0, req, 1, aio_cb); |
|
|
574 | |
|
|
575 | if (!req) |
|
|
576 | croak ("out of memory during aio_req allocation"); |
|
|
577 | |
422 | req->type = REQ_READAHEAD; |
578 | req->type = REQ_READAHEAD; |
|
|
579 | req->fh = newSVsv (fh); |
423 | req->fd = PerlIO_fileno (fh); |
580 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
424 | req->offset = offset; |
581 | req->offset = offset; |
425 | req->length = length; |
582 | req->length = length; |
426 | req->callback = SvREFCNT_inc (callback); |
583 | req->callback = SvREFCNT_inc (callback); |
427 | |
584 | |
428 | send_req (req); |
585 | send_req (req); |
429 | } |
586 | } |
430 | |
587 | |
431 | void |
588 | void |
432 | aio_stat(fh_or_path,callback) |
589 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
433 | SV * fh_or_path |
590 | SV * fh_or_path |
434 | SV * callback |
591 | SV * callback |
435 | PROTOTYPE: $$ |
|
|
436 | ALIAS: |
592 | ALIAS: |
|
|
593 | aio_stat = REQ_STAT |
437 | aio_lstat = 1 |
594 | aio_lstat = REQ_LSTAT |
438 | CODE: |
595 | CODE: |
439 | { |
596 | { |
440 | aio_req req; |
597 | aio_req req; |
441 | |
598 | |
442 | Newz (0, req, 1, aio_cb); |
599 | Newz (0, req, 1, aio_cb); |
… | |
… | |
449 | if (!req->statdata) |
606 | if (!req->statdata) |
450 | croak ("out of memory during aio_req->statdata allocation"); |
607 | croak ("out of memory during aio_req->statdata allocation"); |
451 | |
608 | |
452 | if (SvPOK (fh_or_path)) |
609 | if (SvPOK (fh_or_path)) |
453 | { |
610 | { |
454 | req->type = ix ? REQ_LSTAT : REQ_STAT; |
611 | req->type = ix; |
455 | req->data = newSVsv (fh_or_path); |
612 | req->data = newSVsv (fh_or_path); |
456 | req->dataptr = SvPV_nolen (req->data); |
613 | req->dataptr = SvPV_nolen (req->data); |
457 | } |
614 | } |
458 | else |
615 | else |
459 | { |
616 | { |
460 | req->type = REQ_FSTAT; |
617 | req->type = REQ_FSTAT; |
|
|
618 | req->fh = newSVsv (fh_or_path); |
461 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
619 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
462 | } |
620 | } |
463 | |
621 | |
464 | req->callback = SvREFCNT_inc (callback); |
622 | req->callback = SvREFCNT_inc (callback); |
465 | |
623 | |
466 | send_req (req); |
624 | send_req (req); |
467 | } |
625 | } |
468 | |
626 | |
469 | void |
627 | void |
470 | aio_unlink(pathname,callback) |
628 | aio_unlink(pathname,callback=&PL_sv_undef) |
471 | SV * pathname |
629 | SV * pathname |
472 | SV * callback |
630 | SV * callback |
473 | PROTOTYPE: $$ |
|
|
474 | CODE: |
631 | CODE: |
475 | { |
632 | { |
476 | aio_req req; |
633 | aio_req req; |
477 | |
634 | |
478 | Newz (0, req, 1, aio_cb); |
635 | Newz (0, req, 1, aio_cb); |
… | |
… | |
486 | req->callback = SvREFCNT_inc (callback); |
643 | req->callback = SvREFCNT_inc (callback); |
487 | |
644 | |
488 | send_req (req); |
645 | send_req (req); |
489 | } |
646 | } |
490 | |
647 | |
|
|
648 | void |
|
|
649 | flush() |
|
|
650 | PROTOTYPE: |
|
|
651 | CODE: |
|
|
652 | while (nreqs) |
|
|
653 | { |
|
|
654 | poll_wait (); |
|
|
655 | poll_cb (); |
|
|
656 | } |
|
|
657 | |
|
|
658 | void |
|
|
659 | poll() |
|
|
660 | PROTOTYPE: |
|
|
661 | CODE: |
|
|
662 | if (nreqs) |
|
|
663 | { |
|
|
664 | poll_wait (); |
|
|
665 | poll_cb (); |
|
|
666 | } |
|
|
667 | |
491 | int |
668 | int |
492 | poll_fileno() |
669 | poll_fileno() |
493 | PROTOTYPE: |
670 | PROTOTYPE: |
494 | CODE: |
671 | CODE: |
495 | RETVAL = respipe[0]; |
672 | RETVAL = respipe [0]; |
496 | OUTPUT: |
673 | OUTPUT: |
497 | RETVAL |
674 | RETVAL |
498 | |
675 | |
499 | int |
676 | int |
500 | poll_cb(...) |
677 | poll_cb(...) |
501 | PROTOTYPE: |
678 | PROTOTYPE: |
502 | CODE: |
679 | CODE: |
503 | RETVAL = poll_cb (aTHX); |
680 | RETVAL = poll_cb (); |
504 | OUTPUT: |
681 | OUTPUT: |
505 | RETVAL |
682 | RETVAL |
506 | |
683 | |
507 | void |
684 | void |
508 | poll_wait() |
685 | poll_wait() |
509 | PROTOTYPE: |
686 | PROTOTYPE: |
510 | CODE: |
687 | CODE: |
|
|
688 | if (nreqs) |
511 | poll_wait (); |
689 | poll_wait (); |
512 | |
690 | |
513 | int |
691 | int |
514 | nreqs() |
692 | nreqs() |
515 | PROTOTYPE: |
693 | PROTOTYPE: |
516 | CODE: |
694 | CODE: |