1 | #define PERL_NO_GET_CONTEXT |
1 | #define _XOPEN_SOURCE 500 |
2 | |
2 | |
3 | #include "EXTERN.h" |
3 | #include "EXTERN.h" |
4 | #include "perl.h" |
4 | #include "perl.h" |
5 | #include "XSUB.h" |
5 | #include "XSUB.h" |
6 | |
6 | |
7 | #include <sys/types.h> |
7 | #include <sys/types.h> |
8 | #include <sys/stat.h> |
8 | #include <sys/stat.h> |
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9 | |
9 | #include <unistd.h> |
10 | #include <unistd.h> |
10 | #include <fcntl.h> |
11 | #include <fcntl.h> |
11 | #include <signal.h> |
12 | #include <signal.h> |
12 | #include <sched.h> |
13 | #include <sched.h> |
13 | #include <endian.h> |
14 | #if __linux |
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15 | #include <sys/syscall.h> |
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16 | #endif |
14 | |
17 | |
15 | #include <pthread.h> |
18 | #include <pthread.h> |
16 | #include <sys/syscall.h> |
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17 | |
19 | |
18 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
20 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
19 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
21 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
20 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
22 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
21 | |
23 | |
22 | #if __i386 || __amd64 |
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23 | # define STACKSIZE ( 256 * sizeof (long)) |
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24 | #elif __ia64 |
24 | #if __ia64 |
25 | # define STACKSIZE (8192 * sizeof (long)) |
25 | # define STACKSIZE 65536 |
26 | #else |
26 | #else |
27 | # define STACKSIZE ( 512 * sizeof (long)) |
27 | # define STACKSIZE 4096 |
28 | #endif |
28 | #endif |
29 | |
29 | |
30 | enum { |
30 | enum { |
31 | REQ_QUIT, |
31 | REQ_QUIT, |
32 | REQ_OPEN, REQ_CLOSE, |
32 | REQ_OPEN, REQ_CLOSE, |
… | |
… | |
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))); |
219 | |
137 | |
220 | if (req->type == REQ_OPEN) |
138 | if (req->type == REQ_OPEN) |
221 | { |
139 | { |
… | |
… | |
224 | |
142 | |
225 | PUTBACK; |
143 | PUTBACK; |
226 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
144 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
227 | SPAGAIN; |
145 | SPAGAIN; |
228 | |
146 | |
229 | fh = POPs; |
147 | fh = SvREFCNT_inc (POPs); |
230 | |
148 | |
231 | PUSHMARK (SP); |
149 | PUSHMARK (SP); |
232 | XPUSHs (fh); |
150 | XPUSHs (sv_2mortal (fh)); |
233 | } |
151 | } |
234 | |
152 | |
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153 | if (SvOK (req->callback)) |
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154 | { |
235 | PUTBACK; |
155 | PUTBACK; |
236 | call_sv (req->callback, G_VOID | G_EVAL); |
156 | call_sv (req->callback, G_VOID | G_EVAL); |
237 | SPAGAIN; |
157 | SPAGAIN; |
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158 | } |
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159 | |
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160 | LEAVE; |
238 | |
161 | |
239 | if (req->callback) |
162 | if (req->callback) |
240 | SvREFCNT_dec (req->callback); |
163 | SvREFCNT_dec (req->callback); |
241 | |
164 | |
242 | errno = errorno; |
165 | errno = errorno; |
243 | count++; |
166 | count++; |
244 | } |
167 | } |
245 | |
168 | |
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169 | prv = req; |
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170 | req = req->next; |
246 | Safefree (req); |
171 | Safefree (prv); |
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172 | |
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173 | /* TODO: croak on errors? */ |
247 | } |
174 | } |
248 | |
175 | |
249 | if (qs) |
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250 | send_reqs (); |
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251 | |
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252 | return count; |
176 | return count; |
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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); |
253 | } |
236 | } |
254 | |
237 | |
255 | static void * |
238 | static void * |
256 | aio_proc (void *thr_arg) |
239 | aio_proc (void *thr_arg) |
257 | { |
240 | { |
258 | aio_req req; |
241 | aio_req req; |
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242 | int type; |
259 | |
243 | |
260 | /* then loop */ |
244 | do |
261 | while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req)) |
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262 | { |
245 | { |
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246 | pthread_mutex_lock (&reqlock); |
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247 | |
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248 | for (;;) |
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249 | { |
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250 | req = reqs; |
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251 | |
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252 | if (reqs) |
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253 | { |
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254 | reqs = reqs->next; |
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255 | if (!reqs) reqe = 0; |
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256 | } |
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257 | |
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258 | if (req) |
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259 | break; |
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260 | |
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261 | pthread_cond_wait (&reqwait, &reqlock); |
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262 | } |
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263 | |
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264 | pthread_mutex_unlock (&reqlock); |
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265 | |
263 | errno = 0; /* strictly unnecessary */ |
266 | errno = 0; /* strictly unnecessary */ |
264 | |
267 | |
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268 | type = req->type; |
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269 | |
265 | switch (req->type) |
270 | switch (type) |
266 | { |
271 | { |
267 | case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break; |
272 | 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; |
273 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
269 | #if SYS_readahead |
274 | #if SYS_readahead |
270 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
275 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
271 | #else |
276 | #else |
272 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
277 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
273 | #endif |
278 | #endif |
… | |
… | |
282 | |
287 | |
283 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
288 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
284 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
289 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
285 | |
290 | |
286 | case REQ_QUIT: |
291 | case REQ_QUIT: |
287 | write (respipe[1], (void *)&req, sizeof (req)); |
292 | break; |
288 | return 0; |
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289 | |
293 | |
290 | default: |
294 | default: |
291 | req->result = ENOSYS; |
295 | req->result = ENOSYS; |
292 | break; |
296 | break; |
293 | } |
297 | } |
294 | |
298 | |
295 | req->errorno = errno; |
299 | req->errorno = errno; |
296 | write (respipe[1], (void *)&req, sizeof (req)); |
300 | |
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301 | pthread_mutex_lock (&reslock); |
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302 | |
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303 | req->next = 0; |
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304 | |
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305 | if (rese) |
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306 | { |
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307 | rese->next = req; |
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308 | rese = req; |
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309 | } |
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310 | else |
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311 | { |
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312 | rese = ress = req; |
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313 | |
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314 | /* write a dummy byte to the pipe so fh becomes ready */ |
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315 | write (respipe [1], &respipe, 1); |
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316 | } |
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317 | |
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318 | pthread_mutex_unlock (&reslock); |
297 | } |
319 | } |
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320 | while (type != REQ_QUIT); |
298 | |
321 | |
299 | return 0; |
322 | return 0; |
300 | } |
323 | } |
301 | |
324 | |
302 | MODULE = IO::AIO PACKAGE = IO::AIO |
325 | MODULE = IO::AIO PACKAGE = IO::AIO |
303 | |
326 | |
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327 | PROTOTYPES: ENABLE |
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328 | |
304 | BOOT: |
329 | BOOT: |
305 | { |
330 | { |
306 | if (pipe (reqpipe) || pipe (respipe)) |
331 | if (pipe (respipe)) |
307 | croak ("unable to initialize request or result pipe"); |
332 | croak ("unable to initialize result pipe"); |
308 | |
333 | |
309 | if (fcntl (reqpipe[1], F_SETFL, O_NONBLOCK)) |
334 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
310 | croak ("cannot set result pipe to nonblocking mode"); |
335 | croak ("cannot set result pipe to nonblocking mode"); |
311 | |
336 | |
312 | if (fcntl (respipe[0], F_SETFL, O_NONBLOCK)) |
337 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
313 | croak ("cannot set result pipe to nonblocking mode"); |
338 | croak ("cannot set result pipe to nonblocking mode"); |
314 | } |
339 | } |
315 | |
340 | |
316 | void |
341 | void |
317 | min_parallel(nthreads) |
342 | min_parallel(nthreads) |
… | |
… | |
335 | } |
360 | } |
336 | |
361 | |
337 | while (started > nthreads) |
362 | while (started > nthreads) |
338 | { |
363 | { |
339 | poll_wait (); |
364 | poll_wait (); |
340 | poll_cb (aTHX); |
365 | poll_cb (); |
341 | } |
366 | } |
342 | } |
367 | } |
343 | |
368 | |
|
|
369 | int |
|
|
370 | max_outstanding(nreqs) |
|
|
371 | int nreqs |
|
|
372 | PROTOTYPE: $ |
|
|
373 | CODE: |
|
|
374 | RETVAL = max_outstanding; |
|
|
375 | max_outstanding = nreqs; |
|
|
376 | |
344 | void |
377 | void |
345 | aio_open(pathname,flags,mode,callback) |
378 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
346 | SV * pathname |
379 | SV * pathname |
347 | int flags |
380 | int flags |
348 | int mode |
381 | int mode |
349 | SV * callback |
382 | SV * callback |
350 | PROTOTYPE: $$$$ |
383 | PROTOTYPE: $$$;$ |
351 | CODE: |
384 | CODE: |
352 | { |
385 | { |
353 | aio_req req; |
386 | aio_req req; |
354 | |
387 | |
355 | Newz (0, req, 1, aio_cb); |
388 | Newz (0, req, 1, aio_cb); |
… | |
… | |
366 | |
399 | |
367 | send_req (req); |
400 | send_req (req); |
368 | } |
401 | } |
369 | |
402 | |
370 | void |
403 | void |
371 | aio_close(fh,callback) |
404 | aio_close(fh,callback=&PL_sv_undef) |
372 | InputStream fh |
405 | SV * fh |
373 | SV * callback |
406 | SV * callback |
374 | PROTOTYPE: $$ |
407 | PROTOTYPE: $;$ |
375 | ALIAS: |
408 | ALIAS: |
376 | aio_close = REQ_CLOSE |
409 | aio_close = REQ_CLOSE |
377 | aio_fsync = REQ_FSYNC |
410 | aio_fsync = REQ_FSYNC |
378 | aio_fdatasync = REQ_FDATASYNC |
411 | aio_fdatasync = REQ_FDATASYNC |
379 | CODE: |
412 | CODE: |
… | |
… | |
384 | |
417 | |
385 | if (!req) |
418 | if (!req) |
386 | croak ("out of memory during aio_req allocation"); |
419 | croak ("out of memory during aio_req allocation"); |
387 | |
420 | |
388 | req->type = ix; |
421 | req->type = ix; |
|
|
422 | req->fh = newSVsv (fh); |
389 | req->fd = PerlIO_fileno (fh); |
423 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
390 | req->callback = SvREFCNT_inc (callback); |
424 | req->callback = SvREFCNT_inc (callback); |
391 | |
425 | |
392 | send_req (req); |
426 | send_req (req); |
393 | } |
427 | } |
394 | |
428 | |
395 | void |
429 | void |
396 | aio_read(fh,offset,length,data,dataoffset,callback) |
430 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
397 | InputStream fh |
431 | SV * fh |
398 | UV offset |
432 | UV offset |
399 | IV length |
433 | IV length |
400 | SV * data |
434 | SV * data |
401 | IV dataoffset |
435 | IV dataoffset |
402 | SV * callback |
436 | SV * callback |
|
|
437 | ALIAS: |
|
|
438 | aio_read = REQ_READ |
|
|
439 | aio_write = REQ_WRITE |
403 | PROTOTYPE: $$$$$$ |
440 | PROTOTYPE: $$$$$;$ |
404 | CODE: |
441 | CODE: |
405 | read_write (aTHX_ 0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
406 | |
|
|
407 | void |
|
|
408 | aio_write(fh,offset,length,data,dataoffset,callback) |
|
|
409 | OutputStream fh |
|
|
410 | UV offset |
|
|
411 | IV length |
|
|
412 | SV * data |
|
|
413 | IV dataoffset |
|
|
414 | SV * callback |
|
|
415 | PROTOTYPE: $$$$$$ |
|
|
416 | CODE: |
|
|
417 | read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
418 | |
|
|
419 | void |
|
|
420 | aio_readahead(fh,offset,length,callback) |
|
|
421 | InputStream fh |
|
|
422 | UV offset |
|
|
423 | IV length |
|
|
424 | SV * callback |
|
|
425 | PROTOTYPE: $$$$ |
|
|
426 | CODE: |
|
|
427 | { |
442 | { |
428 | aio_req req; |
443 | aio_req req; |
|
|
444 | STRLEN svlen; |
|
|
445 | char *svptr = SvPV (data, svlen); |
|
|
446 | |
|
|
447 | SvUPGRADE (data, SVt_PV); |
|
|
448 | SvPOK_on (data); |
|
|
449 | |
|
|
450 | if (dataoffset < 0) |
|
|
451 | dataoffset += svlen; |
|
|
452 | |
|
|
453 | if (dataoffset < 0 || dataoffset > svlen) |
|
|
454 | croak ("data offset outside of string"); |
|
|
455 | |
|
|
456 | if (ix == REQ_WRITE) |
|
|
457 | { |
|
|
458 | /* write: check length and adjust. */ |
|
|
459 | if (length < 0 || length + dataoffset > svlen) |
|
|
460 | length = svlen - dataoffset; |
|
|
461 | } |
|
|
462 | else |
|
|
463 | { |
|
|
464 | /* read: grow scalar as necessary */ |
|
|
465 | svptr = SvGROW (data, length + dataoffset); |
|
|
466 | } |
429 | |
467 | |
430 | if (length < 0) |
468 | if (length < 0) |
431 | croak ("length must not be negative"); |
469 | croak ("length must not be negative"); |
432 | |
470 | |
433 | Newz (0, req, 1, aio_cb); |
471 | Newz (0, req, 1, aio_cb); |
434 | |
472 | |
435 | if (!req) |
473 | if (!req) |
436 | croak ("out of memory during aio_req allocation"); |
474 | croak ("out of memory during aio_req allocation"); |
437 | |
475 | |
|
|
476 | req->type = ix; |
|
|
477 | req->fh = newSVsv (fh); |
|
|
478 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
|
|
479 | : IoOFP (sv_2io (fh))); |
|
|
480 | req->offset = offset; |
|
|
481 | req->length = length; |
|
|
482 | req->data = SvREFCNT_inc (data); |
|
|
483 | req->dataptr = (char *)svptr + dataoffset; |
|
|
484 | req->callback = SvREFCNT_inc (callback); |
|
|
485 | |
|
|
486 | send_req (req); |
|
|
487 | } |
|
|
488 | |
|
|
489 | void |
|
|
490 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
|
|
491 | SV * fh |
|
|
492 | UV offset |
|
|
493 | IV length |
|
|
494 | SV * callback |
|
|
495 | PROTOTYPE: $$$;$ |
|
|
496 | CODE: |
|
|
497 | { |
|
|
498 | aio_req req; |
|
|
499 | |
|
|
500 | if (length < 0) |
|
|
501 | croak ("length must not be negative"); |
|
|
502 | |
|
|
503 | Newz (0, req, 1, aio_cb); |
|
|
504 | |
|
|
505 | if (!req) |
|
|
506 | croak ("out of memory during aio_req allocation"); |
|
|
507 | |
438 | req->type = REQ_READAHEAD; |
508 | req->type = REQ_READAHEAD; |
|
|
509 | req->fh = newSVsv (fh); |
439 | req->fd = PerlIO_fileno (fh); |
510 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
440 | req->offset = offset; |
511 | req->offset = offset; |
441 | req->length = length; |
512 | req->length = length; |
442 | req->callback = SvREFCNT_inc (callback); |
513 | req->callback = SvREFCNT_inc (callback); |
443 | |
514 | |
444 | send_req (req); |
515 | send_req (req); |
445 | } |
516 | } |
446 | |
517 | |
447 | void |
518 | void |
448 | aio_stat(fh_or_path,callback) |
519 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
449 | SV * fh_or_path |
520 | SV * fh_or_path |
450 | SV * callback |
521 | SV * callback |
451 | PROTOTYPE: $$ |
|
|
452 | ALIAS: |
522 | ALIAS: |
|
|
523 | aio_stat = REQ_STAT |
453 | aio_lstat = 1 |
524 | aio_lstat = REQ_LSTAT |
454 | CODE: |
525 | CODE: |
455 | { |
526 | { |
456 | aio_req req; |
527 | aio_req req; |
457 | |
528 | |
458 | Newz (0, req, 1, aio_cb); |
529 | Newz (0, req, 1, aio_cb); |
… | |
… | |
465 | if (!req->statdata) |
536 | if (!req->statdata) |
466 | croak ("out of memory during aio_req->statdata allocation"); |
537 | croak ("out of memory during aio_req->statdata allocation"); |
467 | |
538 | |
468 | if (SvPOK (fh_or_path)) |
539 | if (SvPOK (fh_or_path)) |
469 | { |
540 | { |
470 | req->type = ix ? REQ_LSTAT : REQ_STAT; |
541 | req->type = ix; |
471 | req->data = newSVsv (fh_or_path); |
542 | req->data = newSVsv (fh_or_path); |
472 | req->dataptr = SvPV_nolen (req->data); |
543 | req->dataptr = SvPV_nolen (req->data); |
473 | } |
544 | } |
474 | else |
545 | else |
475 | { |
546 | { |
476 | req->type = REQ_FSTAT; |
547 | req->type = REQ_FSTAT; |
|
|
548 | req->fh = newSVsv (fh_or_path); |
477 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
549 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
478 | } |
550 | } |
479 | |
551 | |
480 | req->callback = SvREFCNT_inc (callback); |
552 | req->callback = SvREFCNT_inc (callback); |
481 | |
553 | |
482 | send_req (req); |
554 | send_req (req); |
483 | } |
555 | } |
484 | |
556 | |
485 | void |
557 | void |
486 | aio_unlink(pathname,callback) |
558 | aio_unlink(pathname,callback=&PL_sv_undef) |
487 | SV * pathname |
559 | SV * pathname |
488 | SV * callback |
560 | SV * callback |
489 | PROTOTYPE: $$ |
|
|
490 | CODE: |
561 | CODE: |
491 | { |
562 | { |
492 | aio_req req; |
563 | aio_req req; |
493 | |
564 | |
494 | Newz (0, req, 1, aio_cb); |
565 | Newz (0, req, 1, aio_cb); |
… | |
… | |
502 | req->callback = SvREFCNT_inc (callback); |
573 | req->callback = SvREFCNT_inc (callback); |
503 | |
574 | |
504 | send_req (req); |
575 | send_req (req); |
505 | } |
576 | } |
506 | |
577 | |
|
|
578 | void |
|
|
579 | flush() |
|
|
580 | PROTOTYPE: |
|
|
581 | CODE: |
|
|
582 | while (nreqs) |
|
|
583 | { |
|
|
584 | poll_wait (); |
|
|
585 | poll_cb (); |
|
|
586 | } |
|
|
587 | |
|
|
588 | void |
|
|
589 | poll() |
|
|
590 | PROTOTYPE: |
|
|
591 | CODE: |
|
|
592 | if (nreqs) |
|
|
593 | { |
|
|
594 | poll_wait (); |
|
|
595 | poll_cb (); |
|
|
596 | } |
|
|
597 | |
507 | int |
598 | int |
508 | poll_fileno() |
599 | poll_fileno() |
509 | PROTOTYPE: |
600 | PROTOTYPE: |
510 | CODE: |
601 | CODE: |
511 | RETVAL = respipe[0]; |
602 | RETVAL = respipe [0]; |
512 | OUTPUT: |
603 | OUTPUT: |
513 | RETVAL |
604 | RETVAL |
514 | |
605 | |
515 | int |
606 | int |
516 | poll_cb(...) |
607 | poll_cb(...) |
517 | PROTOTYPE: |
608 | PROTOTYPE: |
518 | CODE: |
609 | CODE: |
519 | RETVAL = poll_cb (aTHX); |
610 | RETVAL = poll_cb (); |
520 | OUTPUT: |
611 | OUTPUT: |
521 | RETVAL |
612 | RETVAL |
522 | |
613 | |
523 | void |
614 | void |
524 | poll_wait() |
615 | poll_wait() |
525 | PROTOTYPE: |
616 | PROTOTYPE: |
526 | CODE: |
617 | CODE: |
|
|
618 | if (nreqs) |
527 | poll_wait (); |
619 | poll_wait (); |
528 | |
620 | |
529 | int |
621 | int |
530 | nreqs() |
622 | nreqs() |
531 | PROTOTYPE: |
623 | PROTOTYPE: |
532 | CODE: |
624 | CODE: |