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> |
13 | #include <endian.h> |
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14 | |
14 | |
15 | #include <pthread.h> |
15 | #include <pthread.h> |
16 | #include <sys/syscall.h> |
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17 | |
16 | |
18 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
17 | 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 ;) */ |
18 | 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 ;) */ |
19 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
21 | |
20 | |
22 | #if __i386 || __amd64 |
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23 | # define STACKSIZE ( 256 * sizeof (long)) |
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24 | #elif __ia64 |
21 | #if __ia64 |
25 | # define STACKSIZE (8192 * sizeof (long)) |
22 | # define STACKSIZE 65536 |
26 | #else |
23 | #else |
27 | # define STACKSIZE ( 512 * sizeof (long)) |
24 | # define STACKSIZE 4096 |
28 | #endif |
25 | #endif |
29 | |
26 | |
30 | enum { |
27 | enum { |
31 | REQ_QUIT, |
28 | REQ_QUIT, |
32 | REQ_OPEN, REQ_CLOSE, |
29 | REQ_OPEN, REQ_CLOSE, |
… | |
… | |
34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
31 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
35 | REQ_FSYNC, REQ_FDATASYNC, |
32 | REQ_FSYNC, REQ_FDATASYNC, |
36 | }; |
33 | }; |
37 | |
34 | |
38 | typedef struct aio_cb { |
35 | typedef struct aio_cb { |
39 | struct aio_cb *next; |
36 | struct aio_cb *volatile next; |
40 | |
37 | |
41 | int type; |
38 | int type; |
42 | |
39 | |
43 | int fd; |
40 | int fd; |
44 | off_t offset; |
41 | off_t offset; |
45 | size_t length; |
42 | size_t length; |
46 | ssize_t result; |
43 | ssize_t result; |
47 | mode_t mode; /* open */ |
44 | mode_t mode; /* open */ |
48 | int errorno; |
45 | int errorno; |
49 | SV *data, *callback; |
46 | SV *data, *callback, *fh; |
50 | void *dataptr; |
47 | void *dataptr; |
51 | STRLEN dataoffset; |
48 | STRLEN dataoffset; |
52 | |
49 | |
53 | Stat_t *statdata; |
50 | Stat_t *statdata; |
54 | } aio_cb; |
51 | } aio_cb; |
55 | |
52 | |
56 | typedef aio_cb *aio_req; |
53 | typedef aio_cb *aio_req; |
57 | |
54 | |
58 | static int started; |
55 | static int started; |
59 | static int nreqs; |
56 | static volatile int nreqs; |
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57 | static int max_outstanding = 1<<30; |
60 | static int reqpipe[2], respipe[2]; |
58 | static int respipe [2]; |
61 | |
59 | |
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60 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
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61 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
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62 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
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63 | |
62 | static aio_req qs, qe; /* queue start, queue end */ |
64 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
63 | |
65 | 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 | |
66 | |
173 | static void |
67 | static void |
174 | poll_wait () |
68 | poll_wait () |
175 | { |
69 | { |
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70 | if (nreqs && !ress) |
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71 | { |
176 | fd_set rfd; |
72 | fd_set rfd; |
177 | FD_ZERO(&rfd); |
73 | FD_ZERO(&rfd); |
178 | FD_SET(respipe[0], &rfd); |
74 | FD_SET(respipe [0], &rfd); |
179 | |
75 | |
180 | select (respipe[0] + 1, &rfd, 0, 0, 0); |
76 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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77 | } |
181 | } |
78 | } |
182 | |
79 | |
183 | static int |
80 | static int |
184 | poll_cb (pTHX) |
81 | poll_cb () |
185 | { |
82 | { |
186 | dSP; |
83 | dSP; |
187 | int count = 0; |
84 | int count = 0; |
188 | aio_req req; |
85 | aio_req req, prv; |
189 | |
86 | |
190 | while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req)) |
87 | pthread_mutex_lock (&reslock); |
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88 | |
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89 | { |
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90 | /* read any signals sent by the worker threads */ |
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91 | char buf [32]; |
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92 | while (read (respipe [0], buf, 32) > 0) |
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93 | ; |
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94 | } |
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95 | |
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96 | req = ress; |
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97 | ress = rese = 0; |
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98 | |
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99 | pthread_mutex_unlock (&reslock); |
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100 | |
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101 | while (req) |
191 | { |
102 | { |
192 | nreqs--; |
103 | nreqs--; |
193 | |
104 | |
194 | if (req->type == REQ_QUIT) |
105 | if (req->type == REQ_QUIT) |
195 | started--; |
106 | started--; |
… | |
… | |
203 | + req->result > 0 ? req->result : 0); |
114 | + req->result > 0 ? req->result : 0); |
204 | |
115 | |
205 | if (req->data) |
116 | if (req->data) |
206 | SvREFCNT_dec (req->data); |
117 | SvREFCNT_dec (req->data); |
207 | |
118 | |
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119 | if (req->fh) |
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120 | SvREFCNT_dec (req->fh); |
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121 | |
208 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
122 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
209 | { |
123 | { |
210 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
124 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
211 | PL_laststatval = req->result; |
125 | PL_laststatval = req->result; |
212 | PL_statcache = *(req->statdata); |
126 | PL_statcache = *(req->statdata); |
213 | |
127 | |
214 | Safefree (req->statdata); |
128 | Safefree (req->statdata); |
215 | } |
129 | } |
216 | |
130 | |
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131 | ENTER; |
217 | PUSHMARK (SP); |
132 | PUSHMARK (SP); |
218 | XPUSHs (sv_2mortal (newSViv (req->result))); |
133 | XPUSHs (sv_2mortal (newSViv (req->result))); |
219 | |
134 | |
220 | if (req->type == REQ_OPEN) |
135 | if (req->type == REQ_OPEN) |
221 | { |
136 | { |
… | |
… | |
224 | |
139 | |
225 | PUTBACK; |
140 | PUTBACK; |
226 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
141 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
227 | SPAGAIN; |
142 | SPAGAIN; |
228 | |
143 | |
229 | fh = POPs; |
144 | fh = SvREFCNT_inc (POPs); |
230 | |
145 | |
231 | PUSHMARK (SP); |
146 | PUSHMARK (SP); |
232 | XPUSHs (fh); |
147 | XPUSHs (sv_2mortal (fh)); |
233 | } |
148 | } |
234 | |
149 | |
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150 | if (SvOK (req->callback)) |
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151 | { |
235 | PUTBACK; |
152 | PUTBACK; |
236 | call_sv (req->callback, G_VOID | G_EVAL); |
153 | call_sv (req->callback, G_VOID | G_EVAL); |
237 | SPAGAIN; |
154 | SPAGAIN; |
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155 | } |
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156 | |
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157 | LEAVE; |
238 | |
158 | |
239 | if (req->callback) |
159 | if (req->callback) |
240 | SvREFCNT_dec (req->callback); |
160 | SvREFCNT_dec (req->callback); |
241 | |
161 | |
242 | errno = errorno; |
162 | errno = errorno; |
243 | count++; |
163 | count++; |
244 | } |
164 | } |
245 | |
165 | |
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166 | prv = req; |
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167 | req = req->next; |
246 | Safefree (req); |
168 | Safefree (prv); |
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169 | |
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170 | /* TODO: croak on errors? */ |
247 | } |
171 | } |
248 | |
172 | |
249 | if (qs) |
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250 | send_reqs (); |
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251 | |
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252 | return count; |
173 | return count; |
253 | } |
174 | } |
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175 | |
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176 | static void *aio_proc(void *arg); |
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177 | |
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178 | static void |
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179 | start_thread (void) |
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180 | { |
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181 | sigset_t fullsigset, oldsigset; |
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182 | pthread_t tid; |
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183 | pthread_attr_t attr; |
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184 | |
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185 | pthread_attr_init (&attr); |
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186 | pthread_attr_setstacksize (&attr, STACKSIZE); |
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187 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
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188 | |
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189 | sigfillset (&fullsigset); |
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190 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
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191 | |
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192 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
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193 | started++; |
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194 | |
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195 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
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196 | } |
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197 | |
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198 | static void |
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199 | send_req (aio_req req) |
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200 | { |
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201 | nreqs++; |
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202 | |
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203 | pthread_mutex_lock (&reqlock); |
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204 | |
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205 | req->next = 0; |
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206 | |
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207 | if (reqe) |
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208 | { |
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209 | reqe->next = req; |
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210 | reqe = req; |
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211 | } |
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212 | else |
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213 | reqe = reqs = req; |
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214 | |
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215 | pthread_cond_signal (&reqwait); |
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216 | pthread_mutex_unlock (&reqlock); |
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217 | |
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218 | while (nreqs > max_outstanding) |
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219 | { |
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220 | poll_wait (); |
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221 | poll_cb (); |
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222 | } |
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223 | } |
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224 | |
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225 | static void |
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226 | end_thread (void) |
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227 | { |
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228 | aio_req req; |
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229 | New (0, req, 1, aio_cb); |
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230 | req->type = REQ_QUIT; |
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231 | |
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232 | send_req (req); |
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233 | } |
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234 | |
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235 | /* work around various missing functions */ |
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236 | |
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237 | #if !HAVE_PREADWRITE |
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238 | # define pread aio_pread |
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239 | # define pwrite aio_pwrite |
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240 | |
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241 | /* |
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242 | * make our pread/pwrite safe against themselves, but not against |
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243 | * normal read/write by using a mutex. slows down execution a lot, |
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244 | * but that's your problem, not mine. |
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245 | */ |
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246 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
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247 | |
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248 | static ssize_t |
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249 | pread (int fd, void *buf, size_t count, off_t offset) |
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250 | { |
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251 | ssize_t res; |
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252 | off_t ooffset; |
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253 | |
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254 | pthread_mutex_lock (&iolock); |
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255 | ooffset = lseek (fd, 0, SEEK_CUR); |
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256 | lseek (fd, offset, SEEK_SET); |
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257 | res = read (fd, buf, count); |
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258 | lseek (fd, ooffset, SEEK_SET); |
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259 | pthread_mutex_unlock (&iolock); |
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260 | |
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261 | return res; |
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262 | } |
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263 | |
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264 | static ssize_t |
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265 | pwrite (int fd, void *buf, size_t count, off_t offset) |
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266 | { |
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267 | ssize_t res; |
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268 | off_t ooffset; |
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269 | |
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270 | pthread_mutex_lock (&iolock); |
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271 | ooffset = lseek (fd, 0, SEEK_CUR); |
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272 | lseek (fd, offset, SEEK_SET); |
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273 | res = write (fd, buf, count); |
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274 | lseek (fd, offset, SEEK_SET); |
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275 | pthread_mutex_unlock (&iolock); |
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276 | |
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277 | return res; |
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278 | } |
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279 | #endif |
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280 | |
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281 | #if !HAVE_FDATASYNC |
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282 | # define fdatasync fsync |
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283 | #endif |
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284 | |
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285 | #if !HAVE_READAHEAD |
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286 | # define readahead aio_readahead |
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287 | |
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288 | static char readahead_buf[4096]; |
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289 | |
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290 | static ssize_t |
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291 | readahead (int fd, off_t offset, size_t count) |
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292 | { |
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293 | while (count > 0) |
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294 | { |
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295 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
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296 | |
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297 | pread (fd, readahead_buf, len, offset); |
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298 | offset += len; |
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299 | count -= len; |
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300 | } |
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301 | |
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302 | errno = 0; |
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303 | } |
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304 | #endif |
254 | |
305 | |
255 | static void * |
306 | static void * |
256 | aio_proc (void *thr_arg) |
307 | aio_proc (void *thr_arg) |
257 | { |
308 | { |
258 | aio_req req; |
309 | aio_req req; |
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310 | int type; |
259 | |
311 | |
260 | /* then loop */ |
312 | do |
261 | while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req)) |
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262 | { |
313 | { |
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314 | pthread_mutex_lock (&reqlock); |
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315 | |
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316 | for (;;) |
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317 | { |
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318 | req = reqs; |
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319 | |
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320 | if (reqs) |
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321 | { |
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322 | reqs = reqs->next; |
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323 | if (!reqs) reqe = 0; |
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324 | } |
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325 | |
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326 | if (req) |
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327 | break; |
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328 | |
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329 | pthread_cond_wait (&reqwait, &reqlock); |
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330 | } |
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331 | |
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332 | pthread_mutex_unlock (&reqlock); |
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333 | |
263 | errno = 0; /* strictly unnecessary */ |
334 | errno = 0; /* strictly unnecessary */ |
264 | |
335 | |
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336 | type = req->type; |
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337 | |
265 | switch (req->type) |
338 | switch (type) |
266 | { |
339 | { |
267 | case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break; |
340 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
268 | case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, req->offset); break; |
341 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
269 | #if SYS_readahead |
342 | |
270 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
343 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
271 | #else |
|
|
272 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
|
|
273 | #endif |
|
|
274 | |
344 | |
275 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
345 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
276 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
346 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
277 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
347 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
278 | |
348 | |
279 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
349 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
280 | case REQ_CLOSE: req->result = close (req->fd); break; |
350 | case REQ_CLOSE: req->result = close (req->fd); break; |
281 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
351 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
282 | |
352 | |
|
|
353 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
283 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
354 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
284 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
|
|
285 | |
355 | |
286 | case REQ_QUIT: |
356 | case REQ_QUIT: |
287 | write (respipe[1], (void *)&req, sizeof (req)); |
357 | break; |
288 | return 0; |
|
|
289 | |
358 | |
290 | default: |
359 | default: |
291 | req->result = ENOSYS; |
360 | req->result = ENOSYS; |
292 | break; |
361 | break; |
293 | } |
362 | } |
294 | |
363 | |
295 | req->errorno = errno; |
364 | req->errorno = errno; |
296 | write (respipe[1], (void *)&req, sizeof (req)); |
365 | |
|
|
366 | pthread_mutex_lock (&reslock); |
|
|
367 | |
|
|
368 | req->next = 0; |
|
|
369 | |
|
|
370 | if (rese) |
|
|
371 | { |
|
|
372 | rese->next = req; |
|
|
373 | rese = req; |
|
|
374 | } |
|
|
375 | else |
|
|
376 | { |
|
|
377 | rese = ress = req; |
|
|
378 | |
|
|
379 | /* write a dummy byte to the pipe so fh becomes ready */ |
|
|
380 | write (respipe [1], &respipe, 1); |
|
|
381 | } |
|
|
382 | |
|
|
383 | pthread_mutex_unlock (&reslock); |
297 | } |
384 | } |
|
|
385 | while (type != REQ_QUIT); |
298 | |
386 | |
299 | return 0; |
387 | return 0; |
300 | } |
388 | } |
301 | |
389 | |
302 | MODULE = IO::AIO PACKAGE = IO::AIO |
390 | MODULE = IO::AIO PACKAGE = IO::AIO |
303 | |
391 | |
|
|
392 | PROTOTYPES: ENABLE |
|
|
393 | |
304 | BOOT: |
394 | BOOT: |
305 | { |
395 | { |
306 | if (pipe (reqpipe) || pipe (respipe)) |
396 | if (pipe (respipe)) |
307 | croak ("unable to initialize request or result pipe"); |
397 | croak ("unable to initialize result pipe"); |
308 | |
398 | |
309 | if (fcntl (reqpipe[1], F_SETFL, O_NONBLOCK)) |
399 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
310 | croak ("cannot set result pipe to nonblocking mode"); |
400 | croak ("cannot set result pipe to nonblocking mode"); |
311 | |
401 | |
312 | if (fcntl (respipe[0], F_SETFL, O_NONBLOCK)) |
402 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
313 | croak ("cannot set result pipe to nonblocking mode"); |
403 | croak ("cannot set result pipe to nonblocking mode"); |
314 | } |
404 | } |
315 | |
405 | |
316 | void |
406 | void |
317 | min_parallel(nthreads) |
407 | min_parallel(nthreads) |
… | |
… | |
335 | } |
425 | } |
336 | |
426 | |
337 | while (started > nthreads) |
427 | while (started > nthreads) |
338 | { |
428 | { |
339 | poll_wait (); |
429 | poll_wait (); |
340 | poll_cb (aTHX); |
430 | poll_cb (); |
341 | } |
431 | } |
342 | } |
432 | } |
343 | |
433 | |
|
|
434 | int |
|
|
435 | max_outstanding(nreqs) |
|
|
436 | int nreqs |
|
|
437 | PROTOTYPE: $ |
|
|
438 | CODE: |
|
|
439 | RETVAL = max_outstanding; |
|
|
440 | max_outstanding = nreqs; |
|
|
441 | |
344 | void |
442 | void |
345 | aio_open(pathname,flags,mode,callback) |
443 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
346 | SV * pathname |
444 | SV * pathname |
347 | int flags |
445 | int flags |
348 | int mode |
446 | int mode |
349 | SV * callback |
447 | SV * callback |
350 | PROTOTYPE: $$$$ |
448 | PROTOTYPE: $$$;$ |
351 | CODE: |
449 | CODE: |
352 | { |
450 | { |
353 | aio_req req; |
451 | aio_req req; |
354 | |
452 | |
355 | Newz (0, req, 1, aio_cb); |
453 | Newz (0, req, 1, aio_cb); |
… | |
… | |
366 | |
464 | |
367 | send_req (req); |
465 | send_req (req); |
368 | } |
466 | } |
369 | |
467 | |
370 | void |
468 | void |
371 | aio_close(fh,callback) |
469 | aio_close(fh,callback=&PL_sv_undef) |
372 | InputStream fh |
470 | SV * fh |
373 | SV * callback |
471 | SV * callback |
374 | PROTOTYPE: $$ |
472 | PROTOTYPE: $;$ |
375 | ALIAS: |
473 | ALIAS: |
376 | aio_close = REQ_CLOSE |
474 | aio_close = REQ_CLOSE |
377 | aio_fsync = REQ_FSYNC |
475 | aio_fsync = REQ_FSYNC |
378 | aio_fdatasync = REQ_FDATASYNC |
476 | aio_fdatasync = REQ_FDATASYNC |
379 | CODE: |
477 | CODE: |
… | |
… | |
384 | |
482 | |
385 | if (!req) |
483 | if (!req) |
386 | croak ("out of memory during aio_req allocation"); |
484 | croak ("out of memory during aio_req allocation"); |
387 | |
485 | |
388 | req->type = ix; |
486 | req->type = ix; |
|
|
487 | req->fh = newSVsv (fh); |
389 | req->fd = PerlIO_fileno (fh); |
488 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
390 | req->callback = SvREFCNT_inc (callback); |
489 | req->callback = SvREFCNT_inc (callback); |
391 | |
490 | |
392 | send_req (req); |
491 | send_req (req); |
393 | } |
492 | } |
394 | |
493 | |
395 | void |
494 | void |
396 | aio_read(fh,offset,length,data,dataoffset,callback) |
495 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
397 | InputStream fh |
496 | SV * fh |
398 | UV offset |
497 | UV offset |
399 | IV length |
498 | IV length |
400 | SV * data |
499 | SV * data |
401 | IV dataoffset |
500 | IV dataoffset |
402 | SV * callback |
501 | SV * callback |
|
|
502 | ALIAS: |
|
|
503 | aio_read = REQ_READ |
|
|
504 | aio_write = REQ_WRITE |
403 | PROTOTYPE: $$$$$$ |
505 | PROTOTYPE: $$$$$;$ |
404 | CODE: |
506 | CODE: |
405 | read_write (aTHX_ 0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
406 | |
|
|
407 | void |
|
|
408 | aio_write(fh,offset,length,data,dataoffset,callback) |
|
|
409 | OutputStream fh |
|
|
410 | UV offset |
|
|
411 | IV length |
|
|
412 | SV * data |
|
|
413 | IV dataoffset |
|
|
414 | SV * callback |
|
|
415 | PROTOTYPE: $$$$$$ |
|
|
416 | CODE: |
|
|
417 | read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
418 | |
|
|
419 | void |
|
|
420 | aio_readahead(fh,offset,length,callback) |
|
|
421 | InputStream fh |
|
|
422 | UV offset |
|
|
423 | IV length |
|
|
424 | SV * callback |
|
|
425 | PROTOTYPE: $$$$ |
|
|
426 | CODE: |
|
|
427 | { |
507 | { |
428 | aio_req req; |
508 | aio_req req; |
|
|
509 | STRLEN svlen; |
|
|
510 | char *svptr = SvPV (data, svlen); |
|
|
511 | |
|
|
512 | SvUPGRADE (data, SVt_PV); |
|
|
513 | SvPOK_on (data); |
|
|
514 | |
|
|
515 | if (dataoffset < 0) |
|
|
516 | dataoffset += svlen; |
|
|
517 | |
|
|
518 | if (dataoffset < 0 || dataoffset > svlen) |
|
|
519 | croak ("data offset outside of string"); |
|
|
520 | |
|
|
521 | if (ix == REQ_WRITE) |
|
|
522 | { |
|
|
523 | /* write: check length and adjust. */ |
|
|
524 | if (length < 0 || length + dataoffset > svlen) |
|
|
525 | length = svlen - dataoffset; |
|
|
526 | } |
|
|
527 | else |
|
|
528 | { |
|
|
529 | /* read: grow scalar as necessary */ |
|
|
530 | svptr = SvGROW (data, length + dataoffset); |
|
|
531 | } |
429 | |
532 | |
430 | if (length < 0) |
533 | if (length < 0) |
431 | croak ("length must not be negative"); |
534 | croak ("length must not be negative"); |
432 | |
535 | |
433 | Newz (0, req, 1, aio_cb); |
536 | Newz (0, req, 1, aio_cb); |
434 | |
537 | |
435 | if (!req) |
538 | if (!req) |
436 | croak ("out of memory during aio_req allocation"); |
539 | croak ("out of memory during aio_req allocation"); |
437 | |
540 | |
|
|
541 | req->type = ix; |
|
|
542 | req->fh = newSVsv (fh); |
|
|
543 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
|
|
544 | : IoOFP (sv_2io (fh))); |
|
|
545 | req->offset = offset; |
|
|
546 | req->length = length; |
|
|
547 | req->data = SvREFCNT_inc (data); |
|
|
548 | req->dataptr = (char *)svptr + dataoffset; |
|
|
549 | req->callback = SvREFCNT_inc (callback); |
|
|
550 | |
|
|
551 | send_req (req); |
|
|
552 | } |
|
|
553 | |
|
|
554 | void |
|
|
555 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
|
|
556 | SV * fh |
|
|
557 | UV offset |
|
|
558 | IV length |
|
|
559 | SV * callback |
|
|
560 | PROTOTYPE: $$$;$ |
|
|
561 | CODE: |
|
|
562 | { |
|
|
563 | aio_req req; |
|
|
564 | |
|
|
565 | if (length < 0) |
|
|
566 | croak ("length must not be negative"); |
|
|
567 | |
|
|
568 | Newz (0, req, 1, aio_cb); |
|
|
569 | |
|
|
570 | if (!req) |
|
|
571 | croak ("out of memory during aio_req allocation"); |
|
|
572 | |
438 | req->type = REQ_READAHEAD; |
573 | req->type = REQ_READAHEAD; |
|
|
574 | req->fh = newSVsv (fh); |
439 | req->fd = PerlIO_fileno (fh); |
575 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
440 | req->offset = offset; |
576 | req->offset = offset; |
441 | req->length = length; |
577 | req->length = length; |
442 | req->callback = SvREFCNT_inc (callback); |
578 | req->callback = SvREFCNT_inc (callback); |
443 | |
579 | |
444 | send_req (req); |
580 | send_req (req); |
445 | } |
581 | } |
446 | |
582 | |
447 | void |
583 | void |
448 | aio_stat(fh_or_path,callback) |
584 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
449 | SV * fh_or_path |
585 | SV * fh_or_path |
450 | SV * callback |
586 | SV * callback |
451 | PROTOTYPE: $$ |
|
|
452 | ALIAS: |
587 | ALIAS: |
|
|
588 | aio_stat = REQ_STAT |
453 | aio_lstat = 1 |
589 | aio_lstat = REQ_LSTAT |
454 | CODE: |
590 | CODE: |
455 | { |
591 | { |
456 | aio_req req; |
592 | aio_req req; |
457 | |
593 | |
458 | Newz (0, req, 1, aio_cb); |
594 | Newz (0, req, 1, aio_cb); |
… | |
… | |
465 | if (!req->statdata) |
601 | if (!req->statdata) |
466 | croak ("out of memory during aio_req->statdata allocation"); |
602 | croak ("out of memory during aio_req->statdata allocation"); |
467 | |
603 | |
468 | if (SvPOK (fh_or_path)) |
604 | if (SvPOK (fh_or_path)) |
469 | { |
605 | { |
470 | req->type = ix ? REQ_LSTAT : REQ_STAT; |
606 | req->type = ix; |
471 | req->data = newSVsv (fh_or_path); |
607 | req->data = newSVsv (fh_or_path); |
472 | req->dataptr = SvPV_nolen (req->data); |
608 | req->dataptr = SvPV_nolen (req->data); |
473 | } |
609 | } |
474 | else |
610 | else |
475 | { |
611 | { |
476 | req->type = REQ_FSTAT; |
612 | req->type = REQ_FSTAT; |
|
|
613 | req->fh = newSVsv (fh_or_path); |
477 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
614 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
478 | } |
615 | } |
479 | |
616 | |
480 | req->callback = SvREFCNT_inc (callback); |
617 | req->callback = SvREFCNT_inc (callback); |
481 | |
618 | |
482 | send_req (req); |
619 | send_req (req); |
483 | } |
620 | } |
484 | |
621 | |
485 | void |
622 | void |
486 | aio_unlink(pathname,callback) |
623 | aio_unlink(pathname,callback=&PL_sv_undef) |
487 | SV * pathname |
624 | SV * pathname |
488 | SV * callback |
625 | SV * callback |
489 | PROTOTYPE: $$ |
|
|
490 | CODE: |
626 | CODE: |
491 | { |
627 | { |
492 | aio_req req; |
628 | aio_req req; |
493 | |
629 | |
494 | Newz (0, req, 1, aio_cb); |
630 | Newz (0, req, 1, aio_cb); |
… | |
… | |
502 | req->callback = SvREFCNT_inc (callback); |
638 | req->callback = SvREFCNT_inc (callback); |
503 | |
639 | |
504 | send_req (req); |
640 | send_req (req); |
505 | } |
641 | } |
506 | |
642 | |
|
|
643 | void |
|
|
644 | flush() |
|
|
645 | PROTOTYPE: |
|
|
646 | CODE: |
|
|
647 | while (nreqs) |
|
|
648 | { |
|
|
649 | poll_wait (); |
|
|
650 | poll_cb (); |
|
|
651 | } |
|
|
652 | |
|
|
653 | void |
|
|
654 | poll() |
|
|
655 | PROTOTYPE: |
|
|
656 | CODE: |
|
|
657 | if (nreqs) |
|
|
658 | { |
|
|
659 | poll_wait (); |
|
|
660 | poll_cb (); |
|
|
661 | } |
|
|
662 | |
507 | int |
663 | int |
508 | poll_fileno() |
664 | poll_fileno() |
509 | PROTOTYPE: |
665 | PROTOTYPE: |
510 | CODE: |
666 | CODE: |
511 | RETVAL = respipe[0]; |
667 | RETVAL = respipe [0]; |
512 | OUTPUT: |
668 | OUTPUT: |
513 | RETVAL |
669 | RETVAL |
514 | |
670 | |
515 | int |
671 | int |
516 | poll_cb(...) |
672 | poll_cb(...) |
517 | PROTOTYPE: |
673 | PROTOTYPE: |
518 | CODE: |
674 | CODE: |
519 | RETVAL = poll_cb (aTHX); |
675 | RETVAL = poll_cb (); |
520 | OUTPUT: |
676 | OUTPUT: |
521 | RETVAL |
677 | RETVAL |
522 | |
678 | |
523 | void |
679 | void |
524 | poll_wait() |
680 | poll_wait() |
525 | PROTOTYPE: |
681 | PROTOTYPE: |
526 | CODE: |
682 | CODE: |
|
|
683 | if (nreqs) |
527 | poll_wait (); |
684 | poll_wait (); |
528 | |
685 | |
529 | int |
686 | int |
530 | nreqs() |
687 | nreqs() |
531 | PROTOTYPE: |
688 | PROTOTYPE: |
532 | CODE: |
689 | CODE: |