1 | /* solaris */ |
1 | #include "xthread.h" |
2 | #define _POSIX_PTHREAD_SEMANTICS 1 |
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3 | |
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4 | #if __linux && !defined(_GNU_SOURCE) |
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5 | # define _GNU_SOURCE |
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6 | #endif |
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7 | |
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8 | /* just in case */ |
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9 | #define _REENTRANT 1 |
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10 | |
2 | |
11 | #include <errno.h> |
3 | #include <errno.h> |
12 | |
4 | |
13 | #include "EXTERN.h" |
5 | #include "EXTERN.h" |
14 | #include "perl.h" |
6 | #include "perl.h" |
15 | #include "XSUB.h" |
7 | #include "XSUB.h" |
16 | |
8 | |
17 | #include "autoconf/config.h" |
9 | #include "autoconf/config.h" |
18 | |
10 | |
19 | #include <pthread.h> |
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20 | |
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21 | #include <stddef.h> |
11 | #include <stddef.h> |
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12 | #include <stdlib.h> |
22 | #include <errno.h> |
13 | #include <errno.h> |
23 | #include <sys/time.h> |
14 | #include <sys/time.h> |
24 | #include <sys/select.h> |
15 | #include <sys/select.h> |
25 | #include <sys/types.h> |
16 | #include <sys/types.h> |
26 | #include <sys/stat.h> |
17 | #include <sys/stat.h> |
… | |
… | |
43 | # else |
34 | # else |
44 | # error sendfile support requested but not available |
35 | # error sendfile support requested but not available |
45 | # endif |
36 | # endif |
46 | #endif |
37 | #endif |
47 | |
38 | |
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39 | /* number of seconds after which idle threads exit */ |
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40 | #define IDLE_TIMEOUT 10 |
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41 | |
48 | /* used for struct dirent, AIX doesn't provide it */ |
42 | /* used for struct dirent, AIX doesn't provide it */ |
49 | #ifndef NAME_MAX |
43 | #ifndef NAME_MAX |
50 | # define NAME_MAX 4096 |
44 | # define NAME_MAX 4096 |
51 | #endif |
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52 | |
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53 | #ifndef PTHREAD_STACK_MIN |
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54 | /* care for broken platforms, e.g. windows */ |
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55 | # define PTHREAD_STACK_MIN 16384 |
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56 | #endif |
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57 | |
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58 | #if __ia64 |
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59 | # define STACKSIZE 65536 |
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60 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
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61 | # define STACKSIZE PTHREAD_STACK_MIN |
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62 | #else |
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63 | # define STACKSIZE 16384 |
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64 | #endif |
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65 | |
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66 | /* wether word reads are potentially non-atomic. |
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67 | * this is conservatice, likely most arches this runs |
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68 | * on have atomic word read/writes. |
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69 | */ |
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70 | #ifndef WORDREAD_UNSAFE |
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71 | # if __i386 || __x86_64 |
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72 | # define WORDREAD_UNSAFE 0 |
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73 | # else |
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74 | # define WORDREAD_UNSAFE 1 |
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75 | # endif |
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76 | #endif |
45 | #endif |
77 | |
46 | |
78 | /* buffer size for various temporary buffers */ |
47 | /* buffer size for various temporary buffers */ |
79 | #define AIO_BUFSIZE 65536 |
48 | #define AIO_BUFSIZE 65536 |
80 | |
49 | |
… | |
… | |
84 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
53 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
85 | UNLOCK (wrklock); \ |
54 | UNLOCK (wrklock); \ |
86 | if (!aio_buf) \ |
55 | if (!aio_buf) \ |
87 | return -1; |
56 | return -1; |
88 | |
57 | |
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58 | typedef SV SV8; /* byte-sv, used for argument-checking */ |
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59 | |
89 | enum { |
60 | enum { |
90 | REQ_QUIT, |
61 | REQ_QUIT, |
91 | REQ_OPEN, REQ_CLOSE, |
62 | REQ_OPEN, REQ_CLOSE, |
92 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
63 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
93 | REQ_SENDFILE, |
64 | REQ_SENDFILE, |
94 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
65 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
95 | REQ_FSYNC, REQ_FDATASYNC, |
66 | REQ_FSYNC, REQ_FDATASYNC, |
96 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
67 | REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME, |
97 | REQ_READDIR, |
68 | REQ_MKNOD, REQ_READDIR, |
98 | REQ_LINK, REQ_SYMLINK, |
69 | REQ_LINK, REQ_SYMLINK, REQ_READLINK, |
99 | REQ_GROUP, REQ_NOP, |
70 | REQ_GROUP, REQ_NOP, |
100 | REQ_BUSY, |
71 | REQ_BUSY, |
101 | }; |
72 | }; |
102 | |
73 | |
103 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
74 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
… | |
… | |
105 | |
76 | |
106 | typedef struct aio_cb |
77 | typedef struct aio_cb |
107 | { |
78 | { |
108 | struct aio_cb *volatile next; |
79 | struct aio_cb *volatile next; |
109 | |
80 | |
110 | SV *data, *callback; |
81 | SV *callback, *fh; |
111 | SV *fh, *fh2; |
82 | SV *sv1, *sv2; |
112 | void *dataptr, *data2ptr; |
83 | void *ptr1, *ptr2; |
113 | Stat_t *statdata; |
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114 | off_t offset; |
84 | off_t offs; |
115 | size_t length; |
85 | size_t size; |
116 | ssize_t result; |
86 | ssize_t result; |
117 | |
87 | |
118 | STRLEN dataoffset; |
88 | STRLEN stroffset; |
119 | int type; |
89 | int type; |
120 | int fd, fd2; |
90 | int int1, int2; |
121 | int errorno; |
91 | int errorno; |
122 | mode_t mode; /* open */ |
92 | mode_t mode; /* open */ |
123 | |
93 | |
124 | unsigned char flags; |
94 | unsigned char flags; |
125 | unsigned char pri; |
95 | unsigned char pri; |
… | |
… | |
127 | SV *self; /* the perl counterpart of this request, if any */ |
97 | SV *self; /* the perl counterpart of this request, if any */ |
128 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
98 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
129 | } aio_cb; |
99 | } aio_cb; |
130 | |
100 | |
131 | enum { |
101 | enum { |
132 | FLAG_CANCELLED = 0x01, |
102 | FLAG_CANCELLED = 0x01, /* request was cancelled */ |
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103 | FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */ |
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104 | FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */ |
133 | }; |
105 | }; |
134 | |
106 | |
135 | typedef aio_cb *aio_req; |
107 | typedef aio_cb *aio_req; |
136 | typedef aio_cb *aio_req_ornot; |
108 | typedef aio_cb *aio_req_ornot; |
137 | |
109 | |
… | |
… | |
142 | DEFAULT_PRI = 0, |
114 | DEFAULT_PRI = 0, |
143 | PRI_BIAS = -PRI_MIN, |
115 | PRI_BIAS = -PRI_MIN, |
144 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
116 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
145 | }; |
117 | }; |
146 | |
118 | |
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119 | #define AIO_TICKS ((1000000 + 1023) >> 10) |
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120 | |
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121 | static unsigned int max_poll_time = 0; |
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122 | static unsigned int max_poll_reqs = 0; |
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123 | |
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124 | /* calculcate time difference in ~1/AIO_TICKS of a second */ |
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125 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
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126 | { |
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127 | return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS |
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128 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
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129 | } |
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130 | |
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131 | static thread_t main_tid; |
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132 | static int main_sig; |
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133 | static int block_sig_level; |
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134 | |
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135 | void block_sig () |
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136 | { |
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137 | sigset_t ss; |
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138 | |
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139 | if (block_sig_level++) |
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140 | return; |
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141 | |
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142 | if (!main_sig) |
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143 | return; |
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144 | |
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145 | sigemptyset (&ss); |
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146 | sigaddset (&ss, main_sig); |
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147 | pthread_sigmask (SIG_BLOCK, &ss, 0); |
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148 | } |
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149 | |
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150 | void unblock_sig () |
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151 | { |
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152 | sigset_t ss; |
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153 | |
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154 | if (--block_sig_level) |
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155 | return; |
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156 | |
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157 | if (!main_sig) |
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158 | return; |
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159 | |
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160 | sigemptyset (&ss); |
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161 | sigaddset (&ss, main_sig); |
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162 | pthread_sigmask (SIG_UNBLOCK, &ss, 0); |
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163 | } |
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164 | |
147 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
165 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
148 | |
166 | |
149 | static unsigned int started, wanted; |
167 | static unsigned int started, idle, wanted; |
150 | static volatile unsigned int nreqs, nready, npending; |
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151 | static volatile unsigned int max_outstanding = 0xffffffff; |
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152 | static int respipe [2]; |
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153 | |
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154 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
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155 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
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156 | #else |
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157 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
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158 | #endif |
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159 | |
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160 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
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161 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
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162 | |
168 | |
163 | /* worker threads management */ |
169 | /* worker threads management */ |
164 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
170 | static mutex_t wrklock = MUTEX_INIT; |
165 | |
171 | |
166 | typedef struct worker { |
172 | typedef struct worker { |
167 | /* locked by wrklock */ |
173 | /* locked by wrklock */ |
168 | struct worker *prev, *next; |
174 | struct worker *prev, *next; |
169 | |
175 | |
170 | pthread_t tid; |
176 | thread_t tid; |
171 | |
177 | |
172 | /* locked by reslock, reqlock or wrklock */ |
178 | /* locked by reslock, reqlock or wrklock */ |
173 | aio_req req; /* currently processed request */ |
179 | aio_req req; /* currently processed request */ |
174 | void *dbuf; |
180 | void *dbuf; |
175 | DIR *dirp; |
181 | DIR *dirp; |
… | |
… | |
198 | wrk->prev->next = wrk->next; |
204 | wrk->prev->next = wrk->next; |
199 | |
205 | |
200 | free (wrk); |
206 | free (wrk); |
201 | } |
207 | } |
202 | |
208 | |
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209 | static volatile unsigned int nreqs, nready, npending; |
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210 | static volatile unsigned int max_idle = 4; |
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211 | static volatile unsigned int max_outstanding = 0xffffffff; |
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212 | static int respipe [2]; |
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213 | |
203 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
214 | static mutex_t reslock = MUTEX_INIT; |
204 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
215 | static mutex_t reqlock = MUTEX_INIT; |
205 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
216 | static cond_t reqwait = COND_INIT; |
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217 | |
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218 | #if WORDACCESS_UNSAFE |
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219 | |
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220 | static unsigned int get_nready () |
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221 | { |
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222 | unsigned int retval; |
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223 | |
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224 | LOCK (reqlock); |
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225 | retval = nready; |
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226 | UNLOCK (reqlock); |
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227 | |
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228 | return retval; |
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229 | } |
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230 | |
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231 | static unsigned int get_npending () |
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232 | { |
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233 | unsigned int retval; |
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234 | |
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235 | LOCK (reslock); |
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236 | retval = npending; |
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237 | UNLOCK (reslock); |
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238 | |
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239 | return retval; |
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240 | } |
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241 | |
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242 | static unsigned int get_nthreads () |
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243 | { |
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244 | unsigned int retval; |
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245 | |
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246 | LOCK (wrklock); |
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247 | retval = started; |
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248 | UNLOCK (wrklock); |
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249 | |
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250 | return retval; |
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251 | } |
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252 | |
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253 | #else |
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254 | |
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255 | # define get_nready() nready |
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256 | # define get_npending() npending |
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257 | # define get_nthreads() started |
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258 | |
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259 | #endif |
206 | |
260 | |
207 | /* |
261 | /* |
208 | * a somewhat faster data structure might be nice, but |
262 | * a somewhat faster data structure might be nice, but |
209 | * with 8 priorities this actually needs <20 insns |
263 | * with 8 priorities this actually needs <20 insns |
210 | * per shift, the most expensive operation. |
264 | * per shift, the most expensive operation. |
… | |
… | |
256 | } |
310 | } |
257 | |
311 | |
258 | abort (); |
312 | abort (); |
259 | } |
313 | } |
260 | |
314 | |
261 | static int poll_cb (int max); |
315 | static int poll_cb (); |
262 | static void req_invoke (aio_req req); |
316 | static int req_invoke (aio_req req); |
263 | static void req_free (aio_req req); |
317 | static void req_free (aio_req req); |
264 | static void req_cancel (aio_req req); |
318 | static void req_cancel (aio_req req); |
265 | |
319 | |
266 | /* must be called at most once */ |
320 | /* must be called at most once */ |
267 | static SV *req_sv (aio_req req, const char *klass) |
321 | static SV *req_sv (aio_req req, const char *klass) |
… | |
… | |
287 | return mg ? (aio_req)mg->mg_ptr : 0; |
341 | return mg ? (aio_req)mg->mg_ptr : 0; |
288 | } |
342 | } |
289 | |
343 | |
290 | static void aio_grp_feed (aio_req grp) |
344 | static void aio_grp_feed (aio_req grp) |
291 | { |
345 | { |
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346 | block_sig (); |
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347 | |
292 | while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) |
348 | while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) |
293 | { |
349 | { |
294 | int old_len = grp->length; |
350 | int old_len = grp->size; |
295 | |
351 | |
296 | if (grp->fh2 && SvOK (grp->fh2)) |
352 | if (grp->sv2 && SvOK (grp->sv2)) |
297 | { |
353 | { |
298 | dSP; |
354 | dSP; |
299 | |
355 | |
300 | ENTER; |
356 | ENTER; |
301 | SAVETMPS; |
357 | SAVETMPS; |
302 | PUSHMARK (SP); |
358 | PUSHMARK (SP); |
303 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
359 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
304 | PUTBACK; |
360 | PUTBACK; |
305 | call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); |
361 | call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
306 | SPAGAIN; |
362 | SPAGAIN; |
307 | FREETMPS; |
363 | FREETMPS; |
308 | LEAVE; |
364 | LEAVE; |
309 | } |
365 | } |
310 | |
366 | |
311 | /* stop if no progress has been made */ |
367 | /* stop if no progress has been made */ |
312 | if (old_len == grp->length) |
368 | if (old_len == grp->size) |
313 | { |
369 | { |
314 | SvREFCNT_dec (grp->fh2); |
370 | SvREFCNT_dec (grp->sv2); |
315 | grp->fh2 = 0; |
371 | grp->sv2 = 0; |
316 | break; |
372 | break; |
317 | } |
373 | } |
318 | } |
374 | } |
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375 | |
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376 | unblock_sig (); |
319 | } |
377 | } |
320 | |
378 | |
321 | static void aio_grp_dec (aio_req grp) |
379 | static void aio_grp_dec (aio_req grp) |
322 | { |
380 | { |
323 | --grp->length; |
381 | --grp->size; |
324 | |
382 | |
325 | /* call feeder, if applicable */ |
383 | /* call feeder, if applicable */ |
326 | aio_grp_feed (grp); |
384 | aio_grp_feed (grp); |
327 | |
385 | |
328 | /* finish, if done */ |
386 | /* finish, if done */ |
329 | if (!grp->length && grp->fd) |
387 | if (!grp->size && grp->int1) |
330 | { |
388 | { |
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389 | block_sig (); |
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390 | |
331 | req_invoke (grp); |
391 | if (!req_invoke (grp)) |
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392 | { |
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393 | req_free (grp); |
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394 | unblock_sig (); |
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395 | croak (0); |
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396 | } |
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397 | |
332 | req_free (grp); |
398 | req_free (grp); |
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399 | unblock_sig (); |
333 | } |
400 | } |
334 | } |
401 | } |
335 | |
402 | |
336 | static void poll_wait () |
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337 | { |
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338 | fd_set rfd; |
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339 | |
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340 | while (nreqs) |
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341 | { |
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342 | int size; |
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343 | if (WORDREAD_UNSAFE) LOCK (reslock); |
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344 | size = res_queue.size; |
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345 | if (WORDREAD_UNSAFE) UNLOCK (reslock); |
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346 | |
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347 | if (size) |
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348 | return; |
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349 | |
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350 | FD_ZERO(&rfd); |
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351 | FD_SET(respipe [0], &rfd); |
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352 | |
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353 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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354 | } |
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355 | } |
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356 | |
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357 | static void req_invoke (aio_req req) |
403 | static int req_invoke (aio_req req) |
358 | { |
404 | { |
359 | dSP; |
405 | dSP; |
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406 | |
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407 | if (req->flags & FLAG_SV1_RO_OFF) |
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408 | SvREADONLY_off (req->sv1); |
360 | |
409 | |
361 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
410 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
362 | { |
411 | { |
363 | ENTER; |
412 | ENTER; |
364 | SAVETMPS; |
413 | SAVETMPS; |
… | |
… | |
372 | SV *rv = &PL_sv_undef; |
421 | SV *rv = &PL_sv_undef; |
373 | |
422 | |
374 | if (req->result >= 0) |
423 | if (req->result >= 0) |
375 | { |
424 | { |
376 | int i; |
425 | int i; |
377 | char *buf = req->data2ptr; |
426 | char *buf = req->ptr2; |
378 | AV *av = newAV (); |
427 | AV *av = newAV (); |
379 | |
428 | |
380 | av_extend (av, req->result - 1); |
429 | av_extend (av, req->result - 1); |
381 | |
430 | |
382 | for (i = 0; i < req->result; ++i) |
431 | for (i = 0; i < req->result; ++i) |
… | |
… | |
402 | PUSHs (sv_2mortal (newSViv (req->result))); |
451 | PUSHs (sv_2mortal (newSViv (req->result))); |
403 | PUTBACK; |
452 | PUTBACK; |
404 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
453 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
405 | SPAGAIN; |
454 | SPAGAIN; |
406 | |
455 | |
407 | fh = SvREFCNT_inc (POPs); |
456 | fh = POPs; |
408 | |
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409 | PUSHMARK (SP); |
457 | PUSHMARK (SP); |
410 | XPUSHs (sv_2mortal (fh)); |
458 | XPUSHs (fh); |
411 | } |
459 | } |
412 | break; |
460 | break; |
413 | |
461 | |
414 | case REQ_GROUP: |
462 | case REQ_GROUP: |
415 | req->fd = 2; /* mark group as finished */ |
463 | req->int1 = 2; /* mark group as finished */ |
416 | |
464 | |
417 | if (req->data) |
465 | if (req->sv1) |
418 | { |
466 | { |
419 | int i; |
467 | int i; |
420 | AV *av = (AV *)req->data; |
468 | AV *av = (AV *)req->sv1; |
421 | |
469 | |
422 | EXTEND (SP, AvFILL (av) + 1); |
470 | EXTEND (SP, AvFILL (av) + 1); |
423 | for (i = 0; i <= AvFILL (av); ++i) |
471 | for (i = 0; i <= AvFILL (av); ++i) |
424 | PUSHs (*av_fetch (av, i, 0)); |
472 | PUSHs (*av_fetch (av, i, 0)); |
425 | } |
473 | } |
… | |
… | |
427 | |
475 | |
428 | case REQ_NOP: |
476 | case REQ_NOP: |
429 | case REQ_BUSY: |
477 | case REQ_BUSY: |
430 | break; |
478 | break; |
431 | |
479 | |
|
|
480 | case REQ_READLINK: |
|
|
481 | if (req->result > 0) |
|
|
482 | { |
|
|
483 | SvCUR_set (req->sv1, req->result); |
|
|
484 | *SvEND (req->sv1) = 0; |
|
|
485 | PUSHs (req->sv1); |
|
|
486 | } |
|
|
487 | break; |
|
|
488 | |
|
|
489 | case REQ_STAT: |
|
|
490 | case REQ_LSTAT: |
|
|
491 | case REQ_FSTAT: |
|
|
492 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
493 | PL_laststatval = req->result; |
|
|
494 | PL_statcache = *(Stat_t *)(req->ptr2); |
|
|
495 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
496 | break; |
|
|
497 | |
|
|
498 | case REQ_READ: |
|
|
499 | SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); |
|
|
500 | *SvEND (req->sv1) = 0; |
|
|
501 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
502 | break; |
|
|
503 | |
432 | default: |
504 | default: |
433 | PUSHs (sv_2mortal (newSViv (req->result))); |
505 | PUSHs (sv_2mortal (newSViv (req->result))); |
434 | break; |
506 | break; |
435 | } |
507 | } |
436 | |
508 | |
… | |
… | |
456 | grp->grp_first = req->grp_next; |
528 | grp->grp_first = req->grp_next; |
457 | |
529 | |
458 | aio_grp_dec (grp); |
530 | aio_grp_dec (grp); |
459 | } |
531 | } |
460 | |
532 | |
461 | if (SvTRUE (ERRSV)) |
533 | return !SvTRUE (ERRSV); |
462 | { |
|
|
463 | req_free (req); |
|
|
464 | croak (0); |
|
|
465 | } |
|
|
466 | } |
534 | } |
467 | |
535 | |
468 | static void req_free (aio_req req) |
536 | static void req_free (aio_req req) |
469 | { |
537 | { |
470 | if (req->self) |
538 | if (req->self) |
471 | { |
539 | { |
472 | sv_unmagic (req->self, PERL_MAGIC_ext); |
540 | sv_unmagic (req->self, PERL_MAGIC_ext); |
473 | SvREFCNT_dec (req->self); |
541 | SvREFCNT_dec (req->self); |
474 | } |
542 | } |
475 | |
543 | |
476 | SvREFCNT_dec (req->data); |
|
|
477 | SvREFCNT_dec (req->fh); |
544 | SvREFCNT_dec (req->fh); |
|
|
545 | SvREFCNT_dec (req->sv1); |
478 | SvREFCNT_dec (req->fh2); |
546 | SvREFCNT_dec (req->sv2); |
479 | SvREFCNT_dec (req->callback); |
547 | SvREFCNT_dec (req->callback); |
480 | Safefree (req->statdata); |
|
|
481 | |
548 | |
482 | if (req->type == REQ_READDIR) |
549 | if (req->flags & FLAG_PTR2_FREE) |
483 | free (req->data2ptr); |
550 | free (req->ptr2); |
484 | |
551 | |
485 | Safefree (req); |
552 | Safefree (req); |
486 | } |
553 | } |
487 | |
554 | |
488 | static void req_cancel_subs (aio_req grp) |
555 | static void req_cancel_subs (aio_req grp) |
… | |
… | |
490 | aio_req sub; |
557 | aio_req sub; |
491 | |
558 | |
492 | if (grp->type != REQ_GROUP) |
559 | if (grp->type != REQ_GROUP) |
493 | return; |
560 | return; |
494 | |
561 | |
495 | SvREFCNT_dec (grp->fh2); |
562 | SvREFCNT_dec (grp->sv2); |
496 | grp->fh2 = 0; |
563 | grp->sv2 = 0; |
497 | |
564 | |
498 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
565 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
499 | req_cancel (sub); |
566 | req_cancel (sub); |
500 | } |
567 | } |
501 | |
568 | |
… | |
… | |
504 | req->flags |= FLAG_CANCELLED; |
571 | req->flags |= FLAG_CANCELLED; |
505 | |
572 | |
506 | req_cancel_subs (req); |
573 | req_cancel_subs (req); |
507 | } |
574 | } |
508 | |
575 | |
509 | static int poll_cb (int max) |
|
|
510 | { |
|
|
511 | dSP; |
|
|
512 | int count = 0; |
|
|
513 | int do_croak = 0; |
|
|
514 | aio_req req; |
|
|
515 | |
|
|
516 | for (;;) |
|
|
517 | { |
|
|
518 | while (max <= 0 || count < max) |
|
|
519 | { |
|
|
520 | LOCK (reslock); |
|
|
521 | req = reqq_shift (&res_queue); |
|
|
522 | |
|
|
523 | if (req) |
|
|
524 | { |
|
|
525 | --npending; |
|
|
526 | |
|
|
527 | if (!res_queue.size) |
|
|
528 | { |
|
|
529 | /* read any signals sent by the worker threads */ |
|
|
530 | char buf [32]; |
|
|
531 | while (read (respipe [0], buf, 32) == 32) |
|
|
532 | ; |
|
|
533 | } |
|
|
534 | } |
|
|
535 | |
|
|
536 | UNLOCK (reslock); |
|
|
537 | |
|
|
538 | if (!req) |
|
|
539 | break; |
|
|
540 | |
|
|
541 | --nreqs; |
|
|
542 | |
|
|
543 | if (req->type == REQ_QUIT) |
|
|
544 | --started; |
|
|
545 | else if (req->type == REQ_GROUP && req->length) |
|
|
546 | { |
|
|
547 | req->fd = 1; /* mark request as delayed */ |
|
|
548 | continue; |
|
|
549 | } |
|
|
550 | else |
|
|
551 | { |
|
|
552 | if (req->type == REQ_READ) |
|
|
553 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
|
554 | |
|
|
555 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
556 | SvREADONLY_off (req->data); |
|
|
557 | |
|
|
558 | if (req->statdata) |
|
|
559 | { |
|
|
560 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
561 | PL_laststatval = req->result; |
|
|
562 | PL_statcache = *(req->statdata); |
|
|
563 | } |
|
|
564 | |
|
|
565 | req_invoke (req); |
|
|
566 | |
|
|
567 | count++; |
|
|
568 | } |
|
|
569 | |
|
|
570 | req_free (req); |
|
|
571 | } |
|
|
572 | |
|
|
573 | if (nreqs <= max_outstanding) |
|
|
574 | break; |
|
|
575 | |
|
|
576 | poll_wait (); |
|
|
577 | |
|
|
578 | max = 0; |
|
|
579 | } |
|
|
580 | |
|
|
581 | return count; |
|
|
582 | } |
|
|
583 | |
|
|
584 | static void *aio_proc(void *arg); |
576 | static void *aio_proc(void *arg); |
585 | |
577 | |
586 | static void start_thread (void) |
578 | static void start_thread (void) |
587 | { |
579 | { |
588 | sigset_t fullsigset, oldsigset; |
|
|
589 | pthread_attr_t attr; |
|
|
590 | |
|
|
591 | worker *wrk = calloc (1, sizeof (worker)); |
580 | worker *wrk = calloc (1, sizeof (worker)); |
592 | |
581 | |
593 | if (!wrk) |
582 | if (!wrk) |
594 | croak ("unable to allocate worker thread data"); |
583 | croak ("unable to allocate worker thread data"); |
595 | |
584 | |
596 | pthread_attr_init (&attr); |
|
|
597 | pthread_attr_setstacksize (&attr, STACKSIZE); |
|
|
598 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
599 | |
|
|
600 | sigfillset (&fullsigset); |
|
|
601 | |
|
|
602 | LOCK (wrklock); |
585 | LOCK (wrklock); |
603 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
|
|
604 | |
586 | |
605 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
587 | if (thread_create (&wrk->tid, aio_proc, (void *)wrk)) |
606 | { |
588 | { |
607 | wrk->prev = &wrk_first; |
589 | wrk->prev = &wrk_first; |
608 | wrk->next = wrk_first.next; |
590 | wrk->next = wrk_first.next; |
609 | wrk_first.next->prev = wrk; |
591 | wrk_first.next->prev = wrk; |
610 | wrk_first.next = wrk; |
592 | wrk_first.next = wrk; |
611 | ++started; |
593 | ++started; |
612 | } |
594 | } |
613 | else |
595 | else |
614 | free (wrk); |
596 | free (wrk); |
615 | |
597 | |
616 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
617 | UNLOCK (wrklock); |
598 | UNLOCK (wrklock); |
618 | } |
599 | } |
619 | |
600 | |
|
|
601 | static void maybe_start_thread () |
|
|
602 | { |
|
|
603 | if (get_nthreads () >= wanted) |
|
|
604 | return; |
|
|
605 | |
|
|
606 | /* todo: maybe use idle here, but might be less exact */ |
|
|
607 | if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs) |
|
|
608 | return; |
|
|
609 | |
|
|
610 | start_thread (); |
|
|
611 | } |
|
|
612 | |
620 | static void req_send (aio_req req) |
613 | static void req_send (aio_req req) |
621 | { |
614 | { |
622 | while (started < wanted && nreqs >= started) |
615 | block_sig (); |
623 | start_thread (); |
|
|
624 | |
616 | |
625 | ++nreqs; |
617 | ++nreqs; |
626 | |
618 | |
627 | LOCK (reqlock); |
619 | LOCK (reqlock); |
628 | ++nready; |
620 | ++nready; |
629 | reqq_push (&req_queue, req); |
621 | reqq_push (&req_queue, req); |
630 | pthread_cond_signal (&reqwait); |
622 | COND_SIGNAL (reqwait); |
631 | UNLOCK (reqlock); |
623 | UNLOCK (reqlock); |
|
|
624 | |
|
|
625 | unblock_sig (); |
|
|
626 | |
|
|
627 | maybe_start_thread (); |
632 | } |
628 | } |
633 | |
629 | |
634 | static void end_thread (void) |
630 | static void end_thread (void) |
635 | { |
631 | { |
636 | aio_req req; |
632 | aio_req req; |
… | |
… | |
638 | Newz (0, req, 1, aio_cb); |
634 | Newz (0, req, 1, aio_cb); |
639 | |
635 | |
640 | req->type = REQ_QUIT; |
636 | req->type = REQ_QUIT; |
641 | req->pri = PRI_MAX + PRI_BIAS; |
637 | req->pri = PRI_MAX + PRI_BIAS; |
642 | |
638 | |
643 | req_send (req); |
639 | LOCK (reqlock); |
|
|
640 | reqq_push (&req_queue, req); |
|
|
641 | COND_SIGNAL (reqwait); |
|
|
642 | UNLOCK (reqlock); |
|
|
643 | |
|
|
644 | LOCK (wrklock); |
|
|
645 | --started; |
|
|
646 | UNLOCK (wrklock); |
|
|
647 | } |
|
|
648 | |
|
|
649 | static void set_max_idle (int nthreads) |
|
|
650 | { |
|
|
651 | if (WORDACCESS_UNSAFE) LOCK (reqlock); |
|
|
652 | max_idle = nthreads <= 0 ? 1 : nthreads; |
|
|
653 | if (WORDACCESS_UNSAFE) UNLOCK (reqlock); |
644 | } |
654 | } |
645 | |
655 | |
646 | static void min_parallel (int nthreads) |
656 | static void min_parallel (int nthreads) |
647 | { |
657 | { |
648 | if (wanted < nthreads) |
658 | if (wanted < nthreads) |
649 | wanted = nthreads; |
659 | wanted = nthreads; |
650 | } |
660 | } |
651 | |
661 | |
652 | static void max_parallel (int nthreads) |
662 | static void max_parallel (int nthreads) |
653 | { |
663 | { |
654 | int cur = started; |
|
|
655 | |
|
|
656 | if (wanted > nthreads) |
664 | if (wanted > nthreads) |
657 | wanted = nthreads; |
665 | wanted = nthreads; |
658 | |
666 | |
659 | while (cur > wanted) |
667 | while (started > wanted) |
|
|
668 | end_thread (); |
|
|
669 | } |
|
|
670 | |
|
|
671 | static void poll_wait () |
|
|
672 | { |
|
|
673 | fd_set rfd; |
|
|
674 | |
|
|
675 | while (nreqs) |
660 | { |
676 | { |
|
|
677 | int size; |
|
|
678 | if (WORDACCESS_UNSAFE) LOCK (reslock); |
|
|
679 | size = res_queue.size; |
|
|
680 | if (WORDACCESS_UNSAFE) UNLOCK (reslock); |
|
|
681 | |
|
|
682 | if (size) |
|
|
683 | return; |
|
|
684 | |
661 | end_thread (); |
685 | maybe_start_thread (); |
662 | cur--; |
686 | |
|
|
687 | FD_ZERO(&rfd); |
|
|
688 | FD_SET(respipe [0], &rfd); |
|
|
689 | |
|
|
690 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
663 | } |
691 | } |
|
|
692 | } |
664 | |
693 | |
665 | while (started > wanted) |
694 | static int poll_cb () |
|
|
695 | { |
|
|
696 | dSP; |
|
|
697 | int count = 0; |
|
|
698 | int maxreqs = max_poll_reqs; |
|
|
699 | int do_croak = 0; |
|
|
700 | struct timeval tv_start, tv_now; |
|
|
701 | aio_req req; |
|
|
702 | |
|
|
703 | if (max_poll_time) |
|
|
704 | gettimeofday (&tv_start, 0); |
|
|
705 | |
|
|
706 | block_sig (); |
|
|
707 | |
|
|
708 | for (;;) |
666 | { |
709 | { |
|
|
710 | for (;;) |
|
|
711 | { |
|
|
712 | maybe_start_thread (); |
|
|
713 | |
|
|
714 | LOCK (reslock); |
|
|
715 | req = reqq_shift (&res_queue); |
|
|
716 | |
|
|
717 | if (req) |
|
|
718 | { |
|
|
719 | --npending; |
|
|
720 | |
|
|
721 | if (!res_queue.size) |
|
|
722 | { |
|
|
723 | /* read any signals sent by the worker threads */ |
|
|
724 | char buf [4]; |
|
|
725 | while (read (respipe [0], buf, 4) == 4) |
|
|
726 | ; |
|
|
727 | } |
|
|
728 | } |
|
|
729 | |
|
|
730 | UNLOCK (reslock); |
|
|
731 | |
|
|
732 | if (!req) |
|
|
733 | break; |
|
|
734 | |
|
|
735 | --nreqs; |
|
|
736 | |
|
|
737 | if (req->type == REQ_GROUP && req->size) |
|
|
738 | { |
|
|
739 | req->int1 = 1; /* mark request as delayed */ |
|
|
740 | continue; |
|
|
741 | } |
|
|
742 | else |
|
|
743 | { |
|
|
744 | if (!req_invoke (req)) |
|
|
745 | { |
|
|
746 | req_free (req); |
|
|
747 | unblock_sig (); |
|
|
748 | croak (0); |
|
|
749 | } |
|
|
750 | |
|
|
751 | count++; |
|
|
752 | } |
|
|
753 | |
|
|
754 | req_free (req); |
|
|
755 | |
|
|
756 | if (maxreqs && !--maxreqs) |
|
|
757 | break; |
|
|
758 | |
|
|
759 | if (max_poll_time) |
|
|
760 | { |
|
|
761 | gettimeofday (&tv_now, 0); |
|
|
762 | |
|
|
763 | if (tvdiff (&tv_start, &tv_now) >= max_poll_time) |
|
|
764 | break; |
|
|
765 | } |
|
|
766 | } |
|
|
767 | |
|
|
768 | if (nreqs <= max_outstanding) |
|
|
769 | break; |
|
|
770 | |
667 | poll_wait (); |
771 | poll_wait (); |
668 | poll_cb (0); |
772 | |
|
|
773 | ++maxreqs; |
669 | } |
774 | } |
|
|
775 | |
|
|
776 | unblock_sig (); |
|
|
777 | return count; |
670 | } |
778 | } |
671 | |
779 | |
672 | static void create_pipe () |
780 | static void create_pipe () |
673 | { |
781 | { |
674 | if (pipe (respipe)) |
782 | if (pipe (respipe)) |
… | |
… | |
691 | /* |
799 | /* |
692 | * make our pread/pwrite safe against themselves, but not against |
800 | * make our pread/pwrite safe against themselves, but not against |
693 | * normal read/write by using a mutex. slows down execution a lot, |
801 | * normal read/write by using a mutex. slows down execution a lot, |
694 | * but that's your problem, not mine. |
802 | * but that's your problem, not mine. |
695 | */ |
803 | */ |
696 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
804 | static mutex_t preadwritelock = MUTEX_INIT; |
697 | |
805 | |
698 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
806 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
699 | { |
807 | { |
700 | ssize_t res; |
808 | ssize_t res; |
701 | off_t ooffset; |
809 | off_t ooffset; |
… | |
… | |
752 | #endif |
860 | #endif |
753 | |
861 | |
754 | #if !HAVE_READDIR_R |
862 | #if !HAVE_READDIR_R |
755 | # define readdir_r aio_readdir_r |
863 | # define readdir_r aio_readdir_r |
756 | |
864 | |
757 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
865 | static mutex_t readdirlock = MUTEX_INIT; |
758 | |
866 | |
759 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
867 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
760 | { |
868 | { |
761 | struct dirent *e; |
869 | struct dirent *e; |
762 | int errorno; |
870 | int errorno; |
… | |
… | |
889 | int memofs = 0; |
997 | int memofs = 0; |
890 | int res = 0; |
998 | int res = 0; |
891 | int errorno; |
999 | int errorno; |
892 | |
1000 | |
893 | LOCK (wrklock); |
1001 | LOCK (wrklock); |
894 | self->dirp = dirp = opendir (req->dataptr); |
1002 | self->dirp = dirp = opendir (req->ptr1); |
895 | self->dbuf = u = malloc (sizeof (*u)); |
1003 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
1004 | req->flags |= FLAG_PTR2_FREE; |
896 | req->data2ptr = names = malloc (memlen); |
1005 | req->ptr2 = names = malloc (memlen); |
897 | UNLOCK (wrklock); |
1006 | UNLOCK (wrklock); |
898 | |
1007 | |
899 | if (dirp && u && names) |
1008 | if (dirp && u && names) |
900 | for (;;) |
1009 | for (;;) |
901 | { |
1010 | { |
… | |
… | |
915 | |
1024 | |
916 | while (memofs + len > memlen) |
1025 | while (memofs + len > memlen) |
917 | { |
1026 | { |
918 | memlen *= 2; |
1027 | memlen *= 2; |
919 | LOCK (wrklock); |
1028 | LOCK (wrklock); |
920 | req->data2ptr = names = realloc (names, memlen); |
1029 | req->ptr2 = names = realloc (names, memlen); |
921 | UNLOCK (wrklock); |
1030 | UNLOCK (wrklock); |
922 | |
1031 | |
923 | if (!names) |
1032 | if (!names) |
924 | break; |
1033 | break; |
925 | } |
1034 | } |
… | |
… | |
938 | /*****************************************************************************/ |
1047 | /*****************************************************************************/ |
939 | |
1048 | |
940 | static void *aio_proc (void *thr_arg) |
1049 | static void *aio_proc (void *thr_arg) |
941 | { |
1050 | { |
942 | aio_req req; |
1051 | aio_req req; |
943 | int type; |
1052 | struct timespec ts; |
944 | worker *self = (worker *)thr_arg; |
1053 | worker *self = (worker *)thr_arg; |
945 | |
1054 | |
946 | do |
1055 | /* try to distribute timeouts somewhat evenly */ |
|
|
1056 | ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL) |
|
|
1057 | * (1000000000UL / 1024UL); |
|
|
1058 | |
|
|
1059 | for (;;) |
947 | { |
1060 | { |
|
|
1061 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1062 | |
948 | LOCK (reqlock); |
1063 | LOCK (reqlock); |
949 | |
1064 | |
950 | for (;;) |
1065 | for (;;) |
951 | { |
1066 | { |
952 | self->req = req = reqq_shift (&req_queue); |
1067 | self->req = req = reqq_shift (&req_queue); |
953 | |
1068 | |
954 | if (req) |
1069 | if (req) |
955 | break; |
1070 | break; |
956 | |
1071 | |
957 | pthread_cond_wait (&reqwait, &reqlock); |
1072 | ++idle; |
|
|
1073 | |
|
|
1074 | if (COND_TIMEDWAIT (reqwait, reqlock, ts) |
|
|
1075 | == ETIMEDOUT) |
|
|
1076 | { |
|
|
1077 | if (idle > max_idle) |
|
|
1078 | { |
|
|
1079 | --idle; |
|
|
1080 | UNLOCK (reqlock); |
|
|
1081 | LOCK (wrklock); |
|
|
1082 | --started; |
|
|
1083 | UNLOCK (wrklock); |
|
|
1084 | goto quit; |
|
|
1085 | } |
|
|
1086 | |
|
|
1087 | /* we are allowed to idle, so do so without any timeout */ |
|
|
1088 | COND_WAIT (reqwait, reqlock); |
|
|
1089 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1090 | } |
|
|
1091 | |
|
|
1092 | --idle; |
958 | } |
1093 | } |
959 | |
1094 | |
960 | --nready; |
1095 | --nready; |
961 | |
1096 | |
962 | UNLOCK (reqlock); |
1097 | UNLOCK (reqlock); |
963 | |
1098 | |
964 | errno = 0; /* strictly unnecessary */ |
1099 | errno = 0; /* strictly unnecessary */ |
965 | type = req->type; /* remember type for QUIT check */ |
|
|
966 | |
1100 | |
967 | if (!(req->flags & FLAG_CANCELLED)) |
1101 | if (!(req->flags & FLAG_CANCELLED)) |
968 | switch (type) |
1102 | switch (req->type) |
969 | { |
1103 | { |
970 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
1104 | case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break; |
971 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
1105 | case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break; |
972 | |
1106 | |
973 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
1107 | case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
974 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break; |
1108 | case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break; |
975 | |
1109 | |
976 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
1110 | case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break; |
977 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
1111 | case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break; |
978 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
1112 | case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break; |
979 | |
1113 | |
980 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
1114 | case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break; |
981 | case REQ_CLOSE: req->result = close (req->fd); break; |
1115 | case REQ_CLOSE: req->result = close (req->int1); break; |
982 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
1116 | case REQ_UNLINK: req->result = unlink (req->ptr1); break; |
983 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
1117 | case REQ_RMDIR: req->result = rmdir (req->ptr1); break; |
|
|
1118 | case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break; |
984 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
1119 | case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break; |
985 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
1120 | case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break; |
986 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
1121 | case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break; |
|
|
1122 | case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break; |
|
|
1123 | case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break; |
987 | |
1124 | |
988 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
1125 | case REQ_FDATASYNC: req->result = fdatasync (req->int1); break; |
989 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
1126 | case REQ_FSYNC: req->result = fsync (req->int1); break; |
990 | case REQ_READDIR: scandir_ (req, self); break; |
1127 | case REQ_READDIR: scandir_ (req, self); break; |
991 | |
1128 | |
992 | case REQ_BUSY: |
1129 | case REQ_BUSY: |
993 | { |
1130 | { |
994 | struct timeval tv; |
1131 | struct timeval tv; |
995 | |
1132 | |
996 | tv.tv_sec = req->fd; |
1133 | tv.tv_sec = req->int1; |
997 | tv.tv_usec = req->fd2; |
1134 | tv.tv_usec = req->int2; |
998 | |
1135 | |
999 | req->result = select (0, 0, 0, 0, &tv); |
1136 | req->result = select (0, 0, 0, 0, &tv); |
1000 | } |
1137 | } |
1001 | |
1138 | |
1002 | case REQ_GROUP: |
1139 | case REQ_GROUP: |
1003 | case REQ_NOP: |
1140 | case REQ_NOP: |
|
|
1141 | break; |
|
|
1142 | |
1004 | case REQ_QUIT: |
1143 | case REQ_QUIT: |
1005 | break; |
1144 | goto quit; |
1006 | |
1145 | |
1007 | default: |
1146 | default: |
1008 | req->result = ENOSYS; |
1147 | req->result = ENOSYS; |
1009 | break; |
1148 | break; |
1010 | } |
1149 | } |
… | |
… | |
1014 | LOCK (reslock); |
1153 | LOCK (reslock); |
1015 | |
1154 | |
1016 | ++npending; |
1155 | ++npending; |
1017 | |
1156 | |
1018 | if (!reqq_push (&res_queue, req)) |
1157 | if (!reqq_push (&res_queue, req)) |
|
|
1158 | { |
1019 | /* write a dummy byte to the pipe so fh becomes ready */ |
1159 | /* write a dummy byte to the pipe so fh becomes ready */ |
1020 | write (respipe [1], &respipe, 1); |
1160 | write (respipe [1], &respipe, 1); |
|
|
1161 | |
|
|
1162 | /* optionally signal the main thread asynchronously */ |
|
|
1163 | if (main_sig) |
|
|
1164 | pthread_kill (main_tid, main_sig); |
|
|
1165 | } |
1021 | |
1166 | |
1022 | self->req = 0; |
1167 | self->req = 0; |
1023 | worker_clear (self); |
1168 | worker_clear (self); |
1024 | |
1169 | |
1025 | UNLOCK (reslock); |
1170 | UNLOCK (reslock); |
1026 | } |
1171 | } |
1027 | while (type != REQ_QUIT); |
|
|
1028 | |
1172 | |
|
|
1173 | quit: |
1029 | LOCK (wrklock); |
1174 | LOCK (wrklock); |
1030 | worker_free (self); |
1175 | worker_free (self); |
1031 | UNLOCK (wrklock); |
1176 | UNLOCK (wrklock); |
1032 | |
1177 | |
1033 | return 0; |
1178 | return 0; |
… | |
… | |
1080 | |
1225 | |
1081 | worker_clear (wrk); |
1226 | worker_clear (wrk); |
1082 | worker_free (wrk); |
1227 | worker_free (wrk); |
1083 | } |
1228 | } |
1084 | |
1229 | |
1085 | started = 0; |
1230 | started = 0; |
|
|
1231 | idle = 0; |
1086 | nreqs = 0; |
1232 | nreqs = 0; |
|
|
1233 | nready = 0; |
|
|
1234 | npending = 0; |
1087 | |
1235 | |
1088 | close (respipe [0]); |
1236 | close (respipe [0]); |
1089 | close (respipe [1]); |
1237 | close (respipe [1]); |
1090 | create_pipe (); |
1238 | create_pipe (); |
1091 | |
1239 | |
… | |
… | |
1118 | PROTOTYPES: ENABLE |
1266 | PROTOTYPES: ENABLE |
1119 | |
1267 | |
1120 | BOOT: |
1268 | BOOT: |
1121 | { |
1269 | { |
1122 | HV *stash = gv_stashpv ("IO::AIO", 1); |
1270 | HV *stash = gv_stashpv ("IO::AIO", 1); |
|
|
1271 | |
1123 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
1272 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
1124 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
1273 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
1125 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
1274 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1275 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1276 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1277 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
|
|
1278 | newCONSTSUB (stash, "SIGIO", newSViv (SIGIO)); |
1126 | |
1279 | |
1127 | create_pipe (); |
1280 | create_pipe (); |
1128 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1281 | ATFORK (atfork_prepare, atfork_parent, atfork_child); |
1129 | } |
1282 | } |
|
|
1283 | |
|
|
1284 | void |
|
|
1285 | max_poll_reqs (int nreqs) |
|
|
1286 | PROTOTYPE: $ |
|
|
1287 | CODE: |
|
|
1288 | max_poll_reqs = nreqs; |
|
|
1289 | |
|
|
1290 | void |
|
|
1291 | max_poll_time (double nseconds) |
|
|
1292 | PROTOTYPE: $ |
|
|
1293 | CODE: |
|
|
1294 | max_poll_time = nseconds * AIO_TICKS; |
1130 | |
1295 | |
1131 | void |
1296 | void |
1132 | min_parallel (int nthreads) |
1297 | min_parallel (int nthreads) |
1133 | PROTOTYPE: $ |
1298 | PROTOTYPE: $ |
1134 | |
1299 | |
1135 | void |
1300 | void |
1136 | max_parallel (int nthreads) |
1301 | max_parallel (int nthreads) |
1137 | PROTOTYPE: $ |
1302 | PROTOTYPE: $ |
|
|
1303 | |
|
|
1304 | void |
|
|
1305 | max_idle (int nthreads) |
|
|
1306 | PROTOTYPE: $ |
|
|
1307 | CODE: |
|
|
1308 | set_max_idle (nthreads); |
1138 | |
1309 | |
1139 | int |
1310 | int |
1140 | max_outstanding (int maxreqs) |
1311 | max_outstanding (int maxreqs) |
1141 | PROTOTYPE: $ |
1312 | PROTOTYPE: $ |
1142 | CODE: |
1313 | CODE: |
… | |
… | |
1145 | OUTPUT: |
1316 | OUTPUT: |
1146 | RETVAL |
1317 | RETVAL |
1147 | |
1318 | |
1148 | void |
1319 | void |
1149 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1320 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1150 | SV * pathname |
1321 | SV8 * pathname |
1151 | int flags |
1322 | int flags |
1152 | int mode |
1323 | int mode |
1153 | SV * callback |
1324 | SV * callback |
1154 | PROTOTYPE: $$$;$ |
1325 | PROTOTYPE: $$$;$ |
1155 | PPCODE: |
1326 | PPCODE: |
1156 | { |
1327 | { |
1157 | dREQ; |
1328 | dREQ; |
1158 | |
1329 | |
1159 | req->type = REQ_OPEN; |
1330 | req->type = REQ_OPEN; |
1160 | req->data = newSVsv (pathname); |
1331 | req->sv1 = newSVsv (pathname); |
1161 | req->dataptr = SvPVbyte_nolen (req->data); |
1332 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
1162 | req->fd = flags; |
1333 | req->int1 = flags; |
1163 | req->mode = mode; |
1334 | req->mode = mode; |
1164 | |
1335 | |
1165 | REQ_SEND; |
1336 | REQ_SEND; |
1166 | } |
1337 | } |
1167 | |
1338 | |
… | |
… | |
1177 | PPCODE: |
1348 | PPCODE: |
1178 | { |
1349 | { |
1179 | dREQ; |
1350 | dREQ; |
1180 | |
1351 | |
1181 | req->type = ix; |
1352 | req->type = ix; |
1182 | req->fh = newSVsv (fh); |
1353 | req->fh = newSVsv (fh); |
1183 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1354 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1184 | |
1355 | |
1185 | REQ_SEND (req); |
1356 | REQ_SEND (req); |
1186 | } |
1357 | } |
1187 | |
1358 | |
1188 | void |
1359 | void |
1189 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1360 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1190 | SV * fh |
1361 | SV * fh |
1191 | UV offset |
1362 | UV offset |
1192 | UV length |
1363 | UV length |
1193 | SV * data |
1364 | SV8 * data |
1194 | UV dataoffset |
1365 | UV dataoffset |
1195 | SV * callback |
1366 | SV * callback |
1196 | ALIAS: |
1367 | ALIAS: |
1197 | aio_read = REQ_READ |
1368 | aio_read = REQ_READ |
1198 | aio_write = REQ_WRITE |
1369 | aio_write = REQ_WRITE |
1199 | PROTOTYPE: $$$$$;$ |
1370 | PROTOTYPE: $$$$$;$ |
1200 | PPCODE: |
1371 | PPCODE: |
1201 | { |
1372 | { |
1202 | aio_req req; |
|
|
1203 | STRLEN svlen; |
1373 | STRLEN svlen; |
1204 | char *svptr = SvPVbyte (data, svlen); |
1374 | char *svptr = SvPVbyte (data, svlen); |
1205 | |
1375 | |
1206 | SvUPGRADE (data, SVt_PV); |
1376 | SvUPGRADE (data, SVt_PV); |
1207 | SvPOK_on (data); |
1377 | SvPOK_on (data); |
… | |
… | |
1219 | length = svlen - dataoffset; |
1389 | length = svlen - dataoffset; |
1220 | } |
1390 | } |
1221 | else |
1391 | else |
1222 | { |
1392 | { |
1223 | /* read: grow scalar as necessary */ |
1393 | /* read: grow scalar as necessary */ |
1224 | svptr = SvGROW (data, length + dataoffset); |
1394 | svptr = SvGROW (data, length + dataoffset + 1); |
1225 | } |
1395 | } |
1226 | |
1396 | |
1227 | if (length < 0) |
1397 | if (length < 0) |
1228 | croak ("length must not be negative"); |
1398 | croak ("length must not be negative"); |
1229 | |
1399 | |
1230 | { |
1400 | { |
1231 | dREQ; |
1401 | dREQ; |
1232 | |
1402 | |
1233 | req->type = ix; |
1403 | req->type = ix; |
1234 | req->fh = newSVsv (fh); |
1404 | req->fh = newSVsv (fh); |
1235 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
1405 | req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
1236 | : IoOFP (sv_2io (fh))); |
1406 | : IoOFP (sv_2io (fh))); |
1237 | req->offset = offset; |
1407 | req->offs = offset; |
1238 | req->length = length; |
1408 | req->size = length; |
1239 | req->data = SvREFCNT_inc (data); |
1409 | req->sv1 = SvREFCNT_inc (data); |
1240 | req->dataptr = (char *)svptr + dataoffset; |
1410 | req->ptr1 = (char *)svptr + dataoffset; |
|
|
1411 | req->stroffset = dataoffset; |
1241 | |
1412 | |
1242 | if (!SvREADONLY (data)) |
1413 | if (!SvREADONLY (data)) |
1243 | { |
1414 | { |
1244 | SvREADONLY_on (data); |
1415 | SvREADONLY_on (data); |
1245 | req->data2ptr = (void *)data; |
1416 | req->flags |= FLAG_SV1_RO_OFF; |
1246 | } |
1417 | } |
1247 | |
1418 | |
1248 | REQ_SEND; |
1419 | REQ_SEND; |
1249 | } |
1420 | } |
|
|
1421 | } |
|
|
1422 | |
|
|
1423 | void |
|
|
1424 | aio_readlink (path,callback=&PL_sv_undef) |
|
|
1425 | SV8 * path |
|
|
1426 | SV * callback |
|
|
1427 | PROTOTYPE: $$;$ |
|
|
1428 | PPCODE: |
|
|
1429 | { |
|
|
1430 | SV *data; |
|
|
1431 | dREQ; |
|
|
1432 | |
|
|
1433 | data = newSV (NAME_MAX); |
|
|
1434 | SvPOK_on (data); |
|
|
1435 | |
|
|
1436 | req->type = REQ_READLINK; |
|
|
1437 | req->fh = newSVsv (path); |
|
|
1438 | req->ptr2 = SvPVbyte_nolen (req->fh); |
|
|
1439 | req->sv1 = data; |
|
|
1440 | req->ptr1 = SvPVbyte_nolen (data); |
|
|
1441 | |
|
|
1442 | REQ_SEND; |
1250 | } |
1443 | } |
1251 | |
1444 | |
1252 | void |
1445 | void |
1253 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
1446 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
1254 | SV * out_fh |
1447 | SV * out_fh |
… | |
… | |
1260 | PPCODE: |
1453 | PPCODE: |
1261 | { |
1454 | { |
1262 | dREQ; |
1455 | dREQ; |
1263 | |
1456 | |
1264 | req->type = REQ_SENDFILE; |
1457 | req->type = REQ_SENDFILE; |
1265 | req->fh = newSVsv (out_fh); |
1458 | req->fh = newSVsv (out_fh); |
1266 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
1459 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
1267 | req->fh2 = newSVsv (in_fh); |
1460 | req->sv2 = newSVsv (in_fh); |
1268 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
1461 | req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
1269 | req->offset = in_offset; |
1462 | req->offs = in_offset; |
1270 | req->length = length; |
1463 | req->size = length; |
1271 | |
1464 | |
1272 | REQ_SEND; |
1465 | REQ_SEND; |
1273 | } |
1466 | } |
1274 | |
1467 | |
1275 | void |
1468 | void |
… | |
… | |
1282 | PPCODE: |
1475 | PPCODE: |
1283 | { |
1476 | { |
1284 | dREQ; |
1477 | dREQ; |
1285 | |
1478 | |
1286 | req->type = REQ_READAHEAD; |
1479 | req->type = REQ_READAHEAD; |
1287 | req->fh = newSVsv (fh); |
1480 | req->fh = newSVsv (fh); |
1288 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1481 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1289 | req->offset = offset; |
1482 | req->offs = offset; |
1290 | req->length = length; |
1483 | req->size = length; |
1291 | |
1484 | |
1292 | REQ_SEND; |
1485 | REQ_SEND; |
1293 | } |
1486 | } |
1294 | |
1487 | |
1295 | void |
1488 | void |
1296 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
1489 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
1297 | SV * fh_or_path |
1490 | SV8 * fh_or_path |
1298 | SV * callback |
1491 | SV * callback |
1299 | ALIAS: |
1492 | ALIAS: |
1300 | aio_stat = REQ_STAT |
1493 | aio_stat = REQ_STAT |
1301 | aio_lstat = REQ_LSTAT |
1494 | aio_lstat = REQ_LSTAT |
1302 | PPCODE: |
1495 | PPCODE: |
1303 | { |
1496 | { |
1304 | dREQ; |
1497 | dREQ; |
1305 | |
1498 | |
1306 | New (0, req->statdata, 1, Stat_t); |
1499 | req->ptr2 = malloc (sizeof (Stat_t)); |
1307 | if (!req->statdata) |
1500 | if (!req->ptr2) |
1308 | { |
1501 | { |
1309 | req_free (req); |
1502 | req_free (req); |
1310 | croak ("out of memory during aio_req->statdata allocation"); |
1503 | croak ("out of memory during aio_stat statdata allocation"); |
1311 | } |
1504 | } |
|
|
1505 | |
|
|
1506 | req->flags |= FLAG_PTR2_FREE; |
1312 | |
1507 | |
1313 | if (SvPOK (fh_or_path)) |
1508 | if (SvPOK (fh_or_path)) |
1314 | { |
1509 | { |
1315 | req->type = ix; |
1510 | req->type = ix; |
1316 | req->data = newSVsv (fh_or_path); |
1511 | req->sv1 = newSVsv (fh_or_path); |
1317 | req->dataptr = SvPVbyte_nolen (req->data); |
1512 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
1318 | } |
1513 | } |
1319 | else |
1514 | else |
1320 | { |
1515 | { |
1321 | req->type = REQ_FSTAT; |
1516 | req->type = REQ_FSTAT; |
1322 | req->fh = newSVsv (fh_or_path); |
1517 | req->fh = newSVsv (fh_or_path); |
1323 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1518 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1324 | } |
1519 | } |
1325 | |
1520 | |
1326 | REQ_SEND; |
1521 | REQ_SEND; |
1327 | } |
1522 | } |
1328 | |
1523 | |
1329 | void |
1524 | void |
1330 | aio_unlink (pathname,callback=&PL_sv_undef) |
1525 | aio_unlink (pathname,callback=&PL_sv_undef) |
1331 | SV * pathname |
1526 | SV8 * pathname |
1332 | SV * callback |
1527 | SV * callback |
1333 | ALIAS: |
1528 | ALIAS: |
1334 | aio_unlink = REQ_UNLINK |
1529 | aio_unlink = REQ_UNLINK |
1335 | aio_rmdir = REQ_RMDIR |
1530 | aio_rmdir = REQ_RMDIR |
1336 | aio_readdir = REQ_READDIR |
1531 | aio_readdir = REQ_READDIR |
1337 | PPCODE: |
1532 | PPCODE: |
1338 | { |
1533 | { |
1339 | dREQ; |
1534 | dREQ; |
1340 | |
1535 | |
1341 | req->type = ix; |
1536 | req->type = ix; |
1342 | req->data = newSVsv (pathname); |
1537 | req->sv1 = newSVsv (pathname); |
1343 | req->dataptr = SvPVbyte_nolen (req->data); |
1538 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1539 | |
|
|
1540 | REQ_SEND; |
|
|
1541 | } |
|
|
1542 | |
|
|
1543 | void |
|
|
1544 | aio_mkdir (pathname,mode,callback=&PL_sv_undef) |
|
|
1545 | SV8 * pathname |
|
|
1546 | UV mode |
|
|
1547 | SV * callback |
|
|
1548 | PPCODE: |
|
|
1549 | { |
|
|
1550 | dREQ; |
1344 | |
1551 | |
|
|
1552 | req->type = REQ_MKDIR; |
|
|
1553 | req->sv1 = newSVsv (pathname); |
|
|
1554 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1555 | req->mode = mode; |
|
|
1556 | |
1345 | REQ_SEND; |
1557 | REQ_SEND; |
1346 | } |
1558 | } |
1347 | |
1559 | |
1348 | void |
1560 | void |
1349 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
1561 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
1350 | SV * oldpath |
1562 | SV8 * oldpath |
1351 | SV * newpath |
1563 | SV8 * newpath |
1352 | SV * callback |
1564 | SV * callback |
1353 | ALIAS: |
1565 | ALIAS: |
1354 | aio_link = REQ_LINK |
1566 | aio_link = REQ_LINK |
1355 | aio_symlink = REQ_SYMLINK |
1567 | aio_symlink = REQ_SYMLINK |
1356 | aio_rename = REQ_RENAME |
1568 | aio_rename = REQ_RENAME |
1357 | PPCODE: |
1569 | PPCODE: |
1358 | { |
1570 | { |
1359 | dREQ; |
1571 | dREQ; |
1360 | |
1572 | |
1361 | req->type = ix; |
1573 | req->type = ix; |
1362 | req->fh = newSVsv (oldpath); |
1574 | req->fh = newSVsv (oldpath); |
1363 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1575 | req->ptr2 = SvPVbyte_nolen (req->fh); |
1364 | req->data = newSVsv (newpath); |
1576 | req->sv1 = newSVsv (newpath); |
1365 | req->dataptr = SvPVbyte_nolen (req->data); |
1577 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
1366 | |
1578 | |
1367 | REQ_SEND; |
1579 | REQ_SEND; |
1368 | } |
1580 | } |
1369 | |
1581 | |
1370 | void |
1582 | void |
|
|
1583 | aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) |
|
|
1584 | SV8 * pathname |
|
|
1585 | UV mode |
|
|
1586 | UV dev |
|
|
1587 | SV * callback |
|
|
1588 | PPCODE: |
|
|
1589 | { |
|
|
1590 | dREQ; |
|
|
1591 | |
|
|
1592 | req->type = REQ_MKNOD; |
|
|
1593 | req->sv1 = newSVsv (pathname); |
|
|
1594 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1595 | req->mode = (mode_t)mode; |
|
|
1596 | req->offs = dev; |
|
|
1597 | |
|
|
1598 | REQ_SEND; |
|
|
1599 | } |
|
|
1600 | |
|
|
1601 | void |
1371 | aio_busy (delay,callback=&PL_sv_undef) |
1602 | aio_busy (delay,callback=&PL_sv_undef) |
1372 | double delay |
1603 | double delay |
1373 | SV * callback |
1604 | SV * callback |
1374 | PPCODE: |
1605 | PPCODE: |
1375 | { |
1606 | { |
1376 | dREQ; |
1607 | dREQ; |
1377 | |
1608 | |
1378 | req->type = REQ_BUSY; |
1609 | req->type = REQ_BUSY; |
1379 | req->fd = delay < 0. ? 0 : delay; |
1610 | req->int1 = delay < 0. ? 0 : delay; |
1380 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
1611 | req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); |
1381 | |
1612 | |
1382 | REQ_SEND; |
1613 | REQ_SEND; |
1383 | } |
1614 | } |
1384 | |
1615 | |
1385 | void |
1616 | void |
… | |
… | |
1389 | PPCODE: |
1620 | PPCODE: |
1390 | { |
1621 | { |
1391 | dREQ; |
1622 | dREQ; |
1392 | |
1623 | |
1393 | req->type = REQ_GROUP; |
1624 | req->type = REQ_GROUP; |
|
|
1625 | |
1394 | req_send (req); |
1626 | req_send (req); |
1395 | |
|
|
1396 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1627 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1397 | } |
1628 | } |
1398 | |
1629 | |
1399 | void |
1630 | void |
1400 | aio_nop (callback=&PL_sv_undef) |
1631 | aio_nop (callback=&PL_sv_undef) |
1401 | SV * callback |
1632 | SV * callback |
1402 | PPCODE: |
1633 | PPCODE: |
1403 | { |
1634 | { |
1404 | dREQ; |
1635 | dREQ; |
1405 | |
1636 | |
1406 | req->type = REQ_NOP; |
1637 | req->type = REQ_NOP; |
… | |
… | |
1435 | PROTOTYPE: |
1666 | PROTOTYPE: |
1436 | CODE: |
1667 | CODE: |
1437 | while (nreqs) |
1668 | while (nreqs) |
1438 | { |
1669 | { |
1439 | poll_wait (); |
1670 | poll_wait (); |
1440 | poll_cb (0); |
1671 | poll_cb (); |
1441 | } |
1672 | } |
1442 | |
1673 | |
1443 | void |
1674 | int |
1444 | poll() |
1675 | poll() |
1445 | PROTOTYPE: |
1676 | PROTOTYPE: |
1446 | CODE: |
1677 | CODE: |
1447 | if (nreqs) |
|
|
1448 | { |
|
|
1449 | poll_wait (); |
1678 | poll_wait (); |
1450 | poll_cb (0); |
1679 | RETVAL = poll_cb (); |
1451 | } |
1680 | OUTPUT: |
|
|
1681 | RETVAL |
1452 | |
1682 | |
1453 | int |
1683 | int |
1454 | poll_fileno() |
1684 | poll_fileno() |
1455 | PROTOTYPE: |
1685 | PROTOTYPE: |
1456 | CODE: |
1686 | CODE: |
… | |
… | |
1460 | |
1690 | |
1461 | int |
1691 | int |
1462 | poll_cb(...) |
1692 | poll_cb(...) |
1463 | PROTOTYPE: |
1693 | PROTOTYPE: |
1464 | CODE: |
1694 | CODE: |
1465 | RETVAL = poll_cb (0); |
1695 | RETVAL = poll_cb (); |
1466 | OUTPUT: |
|
|
1467 | RETVAL |
|
|
1468 | |
|
|
1469 | int |
|
|
1470 | poll_some(int max = 0) |
|
|
1471 | PROTOTYPE: $ |
|
|
1472 | CODE: |
|
|
1473 | RETVAL = poll_cb (max); |
|
|
1474 | OUTPUT: |
1696 | OUTPUT: |
1475 | RETVAL |
1697 | RETVAL |
1476 | |
1698 | |
1477 | void |
1699 | void |
1478 | poll_wait() |
1700 | poll_wait() |
1479 | PROTOTYPE: |
1701 | PROTOTYPE: |
1480 | CODE: |
1702 | CODE: |
1481 | if (nreqs) |
|
|
1482 | poll_wait (); |
1703 | poll_wait (); |
|
|
1704 | |
|
|
1705 | void |
|
|
1706 | setsig (int signum = SIGIO) |
|
|
1707 | PROTOTYPE: ;$ |
|
|
1708 | CODE: |
|
|
1709 | { |
|
|
1710 | if (block_sig_level) |
|
|
1711 | croak ("cannot call IO::AIO::setsig from within aio_block/callback"); |
|
|
1712 | |
|
|
1713 | LOCK (reslock); |
|
|
1714 | main_tid = pthread_self (); |
|
|
1715 | main_sig = signum; |
|
|
1716 | UNLOCK (reslock); |
|
|
1717 | |
|
|
1718 | if (main_sig && npending) |
|
|
1719 | pthread_kill (main_tid, main_sig); |
|
|
1720 | } |
|
|
1721 | |
|
|
1722 | void |
|
|
1723 | aio_block (SV *cb) |
|
|
1724 | PROTOTYPE: & |
|
|
1725 | PPCODE: |
|
|
1726 | { |
|
|
1727 | int count; |
|
|
1728 | |
|
|
1729 | block_sig (); |
|
|
1730 | PUSHMARK (SP); |
|
|
1731 | PUTBACK; |
|
|
1732 | count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); |
|
|
1733 | SPAGAIN; |
|
|
1734 | unblock_sig (); |
|
|
1735 | |
|
|
1736 | if (SvTRUE (ERRSV)) |
|
|
1737 | croak (0); |
|
|
1738 | |
|
|
1739 | XSRETURN (count); |
|
|
1740 | } |
1483 | |
1741 | |
1484 | int |
1742 | int |
1485 | nreqs() |
1743 | nreqs() |
1486 | PROTOTYPE: |
1744 | PROTOTYPE: |
1487 | CODE: |
1745 | CODE: |
… | |
… | |
1491 | |
1749 | |
1492 | int |
1750 | int |
1493 | nready() |
1751 | nready() |
1494 | PROTOTYPE: |
1752 | PROTOTYPE: |
1495 | CODE: |
1753 | CODE: |
1496 | if (WORDREAD_UNSAFE) LOCK (reqlock); |
|
|
1497 | RETVAL = nready; |
1754 | RETVAL = get_nready (); |
1498 | if (WORDREAD_UNSAFE) UNLOCK (reqlock); |
|
|
1499 | OUTPUT: |
1755 | OUTPUT: |
1500 | RETVAL |
1756 | RETVAL |
1501 | |
1757 | |
1502 | int |
1758 | int |
1503 | npending() |
1759 | npending() |
1504 | PROTOTYPE: |
1760 | PROTOTYPE: |
1505 | CODE: |
1761 | CODE: |
1506 | if (WORDREAD_UNSAFE) LOCK (reslock); |
|
|
1507 | RETVAL = npending; |
1762 | RETVAL = get_npending (); |
|
|
1763 | OUTPUT: |
|
|
1764 | RETVAL |
|
|
1765 | |
|
|
1766 | int |
|
|
1767 | nthreads() |
|
|
1768 | PROTOTYPE: |
|
|
1769 | CODE: |
|
|
1770 | if (WORDACCESS_UNSAFE) LOCK (wrklock); |
|
|
1771 | RETVAL = started; |
1508 | if (WORDREAD_UNSAFE) UNLOCK (reslock); |
1772 | if (WORDACCESS_UNSAFE) UNLOCK (wrklock); |
1509 | OUTPUT: |
1773 | OUTPUT: |
1510 | RETVAL |
1774 | RETVAL |
1511 | |
1775 | |
1512 | PROTOTYPES: DISABLE |
1776 | PROTOTYPES: DISABLE |
1513 | |
1777 | |
… | |
… | |
1531 | PPCODE: |
1795 | PPCODE: |
1532 | { |
1796 | { |
1533 | int i; |
1797 | int i; |
1534 | aio_req req; |
1798 | aio_req req; |
1535 | |
1799 | |
|
|
1800 | if (main_sig && !block_sig_level) |
|
|
1801 | croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use"); |
|
|
1802 | |
1536 | if (grp->fd == 2) |
1803 | if (grp->int1 == 2) |
1537 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
1804 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
1538 | |
1805 | |
1539 | for (i = 1; i < items; ++i ) |
1806 | for (i = 1; i < items; ++i ) |
1540 | { |
1807 | { |
1541 | if (GIMME_V != G_VOID) |
1808 | if (GIMME_V != G_VOID) |
… | |
… | |
1543 | |
1810 | |
1544 | req = SvAIO_REQ (ST (i)); |
1811 | req = SvAIO_REQ (ST (i)); |
1545 | |
1812 | |
1546 | if (req) |
1813 | if (req) |
1547 | { |
1814 | { |
1548 | ++grp->length; |
1815 | ++grp->size; |
1549 | req->grp = grp; |
1816 | req->grp = grp; |
1550 | |
1817 | |
1551 | req->grp_prev = 0; |
1818 | req->grp_prev = 0; |
1552 | req->grp_next = grp->grp_first; |
1819 | req->grp_next = grp->grp_first; |
1553 | |
1820 | |
… | |
… | |
1576 | av = newAV (); |
1843 | av = newAV (); |
1577 | |
1844 | |
1578 | for (i = 1; i < items; ++i ) |
1845 | for (i = 1; i < items; ++i ) |
1579 | av_push (av, newSVsv (ST (i))); |
1846 | av_push (av, newSVsv (ST (i))); |
1580 | |
1847 | |
1581 | SvREFCNT_dec (grp->data); |
1848 | SvREFCNT_dec (grp->sv1); |
1582 | grp->data = (SV *)av; |
1849 | grp->sv1 = (SV *)av; |
1583 | } |
1850 | } |
1584 | |
1851 | |
1585 | void |
1852 | void |
1586 | errno (aio_req grp, int errorno = errno) |
1853 | errno (aio_req grp, int errorno = errno) |
1587 | CODE: |
1854 | CODE: |
1588 | grp->errorno = errorno; |
1855 | grp->errorno = errorno; |
1589 | |
1856 | |
1590 | void |
1857 | void |
1591 | limit (aio_req grp, int limit) |
1858 | limit (aio_req grp, int limit) |
1592 | CODE: |
1859 | CODE: |
1593 | grp->fd2 = limit; |
1860 | grp->int2 = limit; |
1594 | aio_grp_feed (grp); |
1861 | aio_grp_feed (grp); |
1595 | |
1862 | |
1596 | void |
1863 | void |
1597 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
1864 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
1598 | CODE: |
1865 | CODE: |
1599 | { |
1866 | { |
1600 | SvREFCNT_dec (grp->fh2); |
1867 | SvREFCNT_dec (grp->sv2); |
1601 | grp->fh2 = newSVsv (callback); |
1868 | grp->sv2 = newSVsv (callback); |
1602 | |
1869 | |
1603 | if (grp->fd2 <= 0) |
1870 | if (grp->int2 <= 0) |
1604 | grp->fd2 = 2; |
1871 | grp->int2 = 2; |
1605 | |
1872 | |
1606 | aio_grp_feed (grp); |
1873 | aio_grp_feed (grp); |
1607 | } |
1874 | } |
1608 | |
1875 | |