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1 | #include "xthread.h" |
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2 | |
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3 | #include <errno.h> |
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4 | |
1 | #include "EXTERN.h" |
5 | #include "EXTERN.h" |
2 | #include "perl.h" |
6 | #include "perl.h" |
3 | #include "XSUB.h" |
7 | #include "XSUB.h" |
4 | |
8 | |
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9 | #include <stddef.h> |
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10 | #include <stdlib.h> |
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11 | #include <errno.h> |
5 | #include <sys/types.h> |
12 | #include <sys/types.h> |
6 | #include <sys/stat.h> |
13 | #include <sys/stat.h> |
7 | #include <unistd.h> |
14 | #include <limits.h> |
8 | #include <fcntl.h> |
15 | #include <fcntl.h> |
9 | #include <signal.h> |
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10 | #include <sched.h> |
16 | #include <sched.h> |
11 | |
17 | |
12 | #include <pthread.h> |
18 | #ifdef _WIN32 |
13 | #include <sys/syscall.h> |
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14 | |
19 | |
15 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
20 | # define SIGIO 0 |
16 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
21 | typedef Direntry_t X_DIRENT; |
17 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
22 | #undef malloc |
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23 | #undef free |
18 | |
24 | |
19 | #if __ia64 |
25 | // perl overrides all those nice win32 functions |
20 | # define STACKSIZE 65536 |
26 | # undef open |
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27 | # undef read |
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28 | # undef write |
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29 | # undef send |
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30 | # undef recv |
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31 | # undef stat |
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32 | # undef fstat |
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33 | # define lstat stat |
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34 | # undef truncate |
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35 | # undef ftruncate |
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36 | # undef open |
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37 | # undef close |
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38 | # undef unlink |
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39 | # undef rmdir |
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40 | # undef rename |
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41 | # undef lseek |
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42 | |
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43 | # define chown(a,b,c) (errno = ENOSYS, -1) |
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44 | # define fchown(a,b,c) (errno = ENOSYS, -1) |
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45 | # define fchmod(a,b) (errno = ENOSYS, -1) |
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46 | # define symlink(a,b) (errno = ENOSYS, -1) |
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47 | # define readlink(a,b,c) (errno = ENOSYS, -1) |
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48 | # define mknod(a,b,c) (errno = ENOSYS, -1) |
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49 | # define truncate(a,b) (errno = ENOSYS, -1) |
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50 | # define ftruncate(fd,o) chsize ((fd), (o)) |
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51 | # define fsync(fd) _commit (fd) |
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52 | # define opendir(fd) (errno = ENOSYS, 0) |
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53 | # define readdir(fd) (errno = ENOSYS, -1) |
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54 | # define closedir(fd) (errno = ENOSYS, -1) |
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55 | # define mkdir(a,b) mkdir (a) |
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56 | |
21 | #else |
57 | #else |
22 | # define STACKSIZE 4096 |
58 | |
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59 | # include "autoconf/config.h" |
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60 | # include <sys/time.h> |
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61 | # include <sys/select.h> |
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62 | # include <unistd.h> |
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63 | # include <utime.h> |
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64 | # include <signal.h> |
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65 | typedef struct dirent X_DIRENT; |
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66 | |
23 | #endif |
67 | #endif |
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68 | |
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69 | #if HAVE_SENDFILE |
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70 | # if __linux |
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71 | # include <sys/sendfile.h> |
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72 | # elif __freebsd |
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73 | # include <sys/socket.h> |
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74 | # include <sys/uio.h> |
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75 | # elif __hpux |
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76 | # include <sys/socket.h> |
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77 | # elif __solaris /* not yet */ |
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78 | # include <sys/sendfile.h> |
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79 | # else |
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80 | # error sendfile support requested but not available |
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81 | # endif |
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82 | #endif |
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83 | |
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84 | /* number of seconds after which idle threads exit */ |
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85 | #define IDLE_TIMEOUT 10 |
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86 | |
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87 | /* used for struct dirent, AIX doesn't provide it */ |
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88 | #ifndef NAME_MAX |
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89 | # define NAME_MAX 4096 |
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90 | #endif |
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91 | |
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92 | /* buffer size for various temporary buffers */ |
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93 | #define AIO_BUFSIZE 65536 |
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94 | |
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95 | /* use NV for 32 bit perls as it allows larger offsets */ |
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96 | #if IVSIZE >= 8 |
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97 | # define SvVAL64 SvIV |
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98 | #else |
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99 | # define SvVAL64 SvNV |
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100 | #endif |
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101 | |
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102 | #define dBUF \ |
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103 | char *aio_buf; \ |
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104 | X_LOCK (wrklock); \ |
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105 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
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106 | X_UNLOCK (wrklock); \ |
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107 | if (!aio_buf) \ |
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108 | return -1; |
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109 | |
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110 | typedef SV SV8; /* byte-sv, used for argument-checking */ |
24 | |
111 | |
25 | enum { |
112 | enum { |
26 | REQ_QUIT, |
113 | REQ_QUIT, |
27 | REQ_OPEN, REQ_CLOSE, |
114 | REQ_OPEN, REQ_CLOSE, |
28 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
115 | REQ_READ, REQ_WRITE, |
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116 | REQ_READAHEAD, REQ_SENDFILE, |
29 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
117 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
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118 | REQ_TRUNCATE, REQ_FTRUNCATE, |
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119 | REQ_UTIME, REQ_FUTIME, |
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120 | REQ_CHMOD, REQ_FCHMOD, |
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121 | REQ_CHOWN, REQ_FCHOWN, |
30 | REQ_FSYNC, REQ_FDATASYNC, |
122 | REQ_FSYNC, REQ_FDATASYNC, |
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123 | REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME, |
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124 | REQ_MKNOD, REQ_READDIR, |
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125 | REQ_LINK, REQ_SYMLINK, REQ_READLINK, |
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126 | REQ_GROUP, REQ_NOP, |
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127 | REQ_BUSY, |
31 | }; |
128 | }; |
32 | |
129 | |
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130 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
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131 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
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132 | |
33 | typedef struct aio_cb { |
133 | typedef struct aio_cb |
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134 | { |
34 | struct aio_cb *volatile next; |
135 | struct aio_cb *volatile next; |
35 | |
136 | |
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137 | SV *callback; |
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138 | SV *sv1, *sv2; |
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139 | void *ptr1, *ptr2; |
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140 | off_t offs; |
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141 | size_t size; |
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142 | ssize_t result; |
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143 | double nv1, nv2; |
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144 | |
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145 | STRLEN stroffset; |
36 | int type; |
146 | int type; |
37 | |
147 | int int1, int2, int3; |
38 | int fd; |
148 | int errorno; |
39 | off_t offset; |
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40 | size_t length; |
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41 | ssize_t result; |
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42 | mode_t mode; /* open */ |
149 | mode_t mode; /* open */ |
43 | int errorno; |
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44 | SV *data, *callback; |
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45 | void *dataptr; |
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46 | STRLEN dataoffset; |
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47 | |
150 | |
48 | Stat_t *statdata; |
151 | unsigned char flags; |
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152 | unsigned char pri; |
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153 | |
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154 | SV *self; /* the perl counterpart of this request, if any */ |
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155 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
49 | } aio_cb; |
156 | } aio_cb; |
50 | |
157 | |
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158 | enum { |
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159 | FLAG_CANCELLED = 0x01, /* request was cancelled */ |
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160 | FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ |
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161 | FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */ |
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162 | }; |
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163 | |
51 | typedef aio_cb *aio_req; |
164 | typedef aio_cb *aio_req; |
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165 | typedef aio_cb *aio_req_ornot; |
52 | |
166 | |
53 | static int started; |
167 | enum { |
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168 | PRI_MIN = -4, |
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169 | PRI_MAX = 4, |
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170 | |
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171 | DEFAULT_PRI = 0, |
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172 | PRI_BIAS = -PRI_MIN, |
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173 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
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174 | }; |
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175 | |
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176 | #define AIO_TICKS ((1000000 + 1023) >> 10) |
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177 | |
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178 | static unsigned int max_poll_time = 0; |
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179 | static unsigned int max_poll_reqs = 0; |
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180 | |
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181 | /* calculcate time difference in ~1/AIO_TICKS of a second */ |
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182 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
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183 | { |
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184 | return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS |
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185 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
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186 | } |
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187 | |
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188 | static thread_t main_tid; |
54 | static int nreqs; |
189 | static int main_sig; |
55 | static int max_outstanding = 1<<30; |
190 | static int block_sig_level; |
56 | static int respipe [2]; |
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57 | |
191 | |
58 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
192 | void block_sig () |
59 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
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60 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
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61 | |
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62 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
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63 | static volatile aio_req ress, rese; /* queue start, queue end */ |
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64 | |
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65 | static void |
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66 | poll_wait () |
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67 | { |
193 | { |
68 | if (!nreqs) |
194 | sigset_t ss; |
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195 | |
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196 | if (block_sig_level++) |
69 | return; |
197 | return; |
70 | |
198 | |
71 | fd_set rfd; |
199 | if (!main_sig) |
72 | FD_ZERO(&rfd); |
200 | return; |
73 | FD_SET(respipe [0], &rfd); |
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74 | |
201 | |
75 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
202 | sigemptyset (&ss); |
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203 | sigaddset (&ss, main_sig); |
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204 | pthread_sigmask (SIG_BLOCK, &ss, 0); |
76 | } |
205 | } |
77 | |
206 | |
78 | static int |
207 | void unblock_sig () |
79 | poll_cb () |
208 | { |
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209 | sigset_t ss; |
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210 | |
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211 | if (--block_sig_level) |
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212 | return; |
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213 | |
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214 | if (!main_sig) |
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215 | return; |
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216 | |
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217 | sigemptyset (&ss); |
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218 | sigaddset (&ss, main_sig); |
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219 | pthread_sigmask (SIG_UNBLOCK, &ss, 0); |
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220 | } |
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221 | |
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222 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
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223 | |
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224 | static unsigned int started, idle, wanted; |
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225 | |
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226 | /* worker threads management */ |
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227 | static mutex_t wrklock = X_MUTEX_INIT; |
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228 | |
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229 | typedef struct worker { |
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230 | /* locked by wrklock */ |
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231 | struct worker *prev, *next; |
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232 | |
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233 | thread_t tid; |
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234 | |
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235 | /* locked by reslock, reqlock or wrklock */ |
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236 | aio_req req; /* currently processed request */ |
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237 | void *dbuf; |
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238 | DIR *dirp; |
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239 | } worker; |
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240 | |
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241 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
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242 | |
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243 | static void worker_clear (worker *wrk) |
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244 | { |
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245 | if (wrk->dirp) |
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246 | { |
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247 | closedir (wrk->dirp); |
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248 | wrk->dirp = 0; |
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249 | } |
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250 | |
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251 | if (wrk->dbuf) |
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252 | { |
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253 | free (wrk->dbuf); |
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254 | wrk->dbuf = 0; |
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255 | } |
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256 | } |
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257 | |
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258 | static void worker_free (worker *wrk) |
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259 | { |
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260 | wrk->next->prev = wrk->prev; |
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261 | wrk->prev->next = wrk->next; |
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262 | |
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263 | free (wrk); |
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264 | } |
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265 | |
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266 | static volatile unsigned int nreqs, nready, npending; |
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267 | static volatile unsigned int max_idle = 4; |
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268 | static volatile unsigned int max_outstanding = 0xffffffff; |
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269 | static int respipe_osf [2], respipe [2] = { -1, -1 }; |
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270 | |
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271 | static mutex_t reslock = X_MUTEX_INIT; |
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272 | static mutex_t reqlock = X_MUTEX_INIT; |
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273 | static cond_t reqwait = X_COND_INIT; |
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274 | |
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275 | #if WORDACCESS_UNSAFE |
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276 | |
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277 | static unsigned int get_nready () |
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278 | { |
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279 | unsigned int retval; |
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280 | |
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281 | X_LOCK (reqlock); |
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282 | retval = nready; |
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283 | X_UNLOCK (reqlock); |
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284 | |
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285 | return retval; |
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286 | } |
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287 | |
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288 | static unsigned int get_npending () |
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289 | { |
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290 | unsigned int retval; |
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291 | |
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292 | X_LOCK (reslock); |
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293 | retval = npending; |
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294 | X_UNLOCK (reslock); |
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295 | |
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296 | return retval; |
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297 | } |
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298 | |
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299 | static unsigned int get_nthreads () |
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300 | { |
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301 | unsigned int retval; |
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302 | |
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303 | X_LOCK (wrklock); |
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304 | retval = started; |
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305 | X_UNLOCK (wrklock); |
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306 | |
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307 | return retval; |
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308 | } |
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309 | |
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310 | #else |
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311 | |
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312 | # define get_nready() nready |
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313 | # define get_npending() npending |
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314 | # define get_nthreads() started |
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315 | |
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316 | #endif |
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317 | |
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318 | /* |
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319 | * a somewhat faster data structure might be nice, but |
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320 | * with 8 priorities this actually needs <20 insns |
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321 | * per shift, the most expensive operation. |
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322 | */ |
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323 | typedef struct { |
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324 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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325 | int size; |
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326 | } reqq; |
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327 | |
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328 | static reqq req_queue; |
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329 | static reqq res_queue; |
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330 | |
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331 | int reqq_push (reqq *q, aio_req req) |
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332 | { |
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333 | int pri = req->pri; |
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334 | req->next = 0; |
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335 | |
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336 | if (q->qe[pri]) |
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337 | { |
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338 | q->qe[pri]->next = req; |
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339 | q->qe[pri] = req; |
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340 | } |
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341 | else |
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342 | q->qe[pri] = q->qs[pri] = req; |
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343 | |
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344 | return q->size++; |
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345 | } |
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346 | |
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347 | aio_req reqq_shift (reqq *q) |
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348 | { |
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349 | int pri; |
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350 | |
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351 | if (!q->size) |
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352 | return 0; |
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353 | |
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354 | --q->size; |
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355 | |
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356 | for (pri = NUM_PRI; pri--; ) |
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357 | { |
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358 | aio_req req = q->qs[pri]; |
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359 | |
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360 | if (req) |
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361 | { |
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362 | if (!(q->qs[pri] = req->next)) |
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363 | q->qe[pri] = 0; |
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364 | |
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365 | return req; |
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366 | } |
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367 | } |
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368 | |
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369 | abort (); |
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370 | } |
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371 | |
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372 | static int poll_cb (); |
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373 | static int req_invoke (aio_req req); |
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374 | static void req_destroy (aio_req req); |
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375 | static void req_cancel (aio_req req); |
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376 | |
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377 | /* must be called at most once */ |
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378 | static SV *req_sv (aio_req req, const char *klass) |
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379 | { |
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380 | if (!req->self) |
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381 | { |
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382 | req->self = (SV *)newHV (); |
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383 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
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384 | } |
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385 | |
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386 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
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387 | } |
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388 | |
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389 | static aio_req SvAIO_REQ (SV *sv) |
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390 | { |
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391 | MAGIC *mg; |
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392 | |
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393 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
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394 | croak ("object of class " AIO_REQ_KLASS " expected"); |
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395 | |
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396 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
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397 | |
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398 | return mg ? (aio_req)mg->mg_ptr : 0; |
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399 | } |
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400 | |
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401 | static void aio_grp_feed (aio_req grp) |
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402 | { |
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403 | block_sig (); |
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404 | |
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405 | while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) |
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406 | { |
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407 | int old_len = grp->size; |
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408 | |
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409 | if (grp->sv2 && SvOK (grp->sv2)) |
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410 | { |
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411 | dSP; |
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412 | |
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413 | ENTER; |
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414 | SAVETMPS; |
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415 | PUSHMARK (SP); |
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416 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
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417 | PUTBACK; |
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418 | call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
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419 | SPAGAIN; |
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420 | FREETMPS; |
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421 | LEAVE; |
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422 | } |
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423 | |
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424 | /* stop if no progress has been made */ |
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425 | if (old_len == grp->size) |
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426 | { |
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|
427 | SvREFCNT_dec (grp->sv2); |
|
|
428 | grp->sv2 = 0; |
|
|
429 | break; |
|
|
430 | } |
|
|
431 | } |
|
|
432 | |
|
|
433 | unblock_sig (); |
|
|
434 | } |
|
|
435 | |
|
|
436 | static void aio_grp_dec (aio_req grp) |
|
|
437 | { |
|
|
438 | --grp->size; |
|
|
439 | |
|
|
440 | /* call feeder, if applicable */ |
|
|
441 | aio_grp_feed (grp); |
|
|
442 | |
|
|
443 | /* finish, if done */ |
|
|
444 | if (!grp->size && grp->int1) |
|
|
445 | { |
|
|
446 | block_sig (); |
|
|
447 | |
|
|
448 | if (!req_invoke (grp)) |
|
|
449 | { |
|
|
450 | req_destroy (grp); |
|
|
451 | unblock_sig (); |
|
|
452 | croak (0); |
|
|
453 | } |
|
|
454 | |
|
|
455 | req_destroy (grp); |
|
|
456 | unblock_sig (); |
|
|
457 | } |
|
|
458 | } |
|
|
459 | |
|
|
460 | static int req_invoke (aio_req req) |
80 | { |
461 | { |
81 | dSP; |
462 | dSP; |
82 | int count = 0; |
|
|
83 | aio_req req; |
|
|
84 | |
|
|
85 | { |
|
|
86 | /* read and signals sent by the worker threads */ |
|
|
87 | char buf [32]; |
|
|
88 | while (read (respipe [0], buf, 32) > 0) |
|
|
89 | ; |
|
|
90 | } |
|
|
91 | |
463 | |
92 | for (;;) |
464 | if (req->flags & FLAG_SV2_RO_OFF) |
|
|
465 | SvREADONLY_off (req->sv2); |
|
|
466 | |
|
|
467 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
93 | { |
468 | { |
94 | pthread_mutex_lock (&reslock); |
469 | ENTER; |
|
|
470 | SAVETMPS; |
|
|
471 | PUSHMARK (SP); |
|
|
472 | EXTEND (SP, 1); |
95 | |
473 | |
96 | req = ress; |
474 | switch (req->type) |
97 | |
|
|
98 | if (ress) |
|
|
99 | { |
475 | { |
100 | ress = ress->next; |
476 | case REQ_READDIR: |
101 | if (!ress) rese = 0; |
|
|
102 | } |
|
|
103 | |
|
|
104 | pthread_mutex_unlock (&reslock); |
|
|
105 | |
|
|
106 | if (!req) |
|
|
107 | break; |
|
|
108 | |
|
|
109 | nreqs--; |
|
|
110 | |
|
|
111 | if (req->type == REQ_QUIT) |
|
|
112 | started--; |
|
|
113 | else |
|
|
114 | { |
|
|
115 | int errorno = errno; |
|
|
116 | errno = req->errorno; |
|
|
117 | |
|
|
118 | if (req->type == REQ_READ) |
|
|
119 | SvCUR_set (req->data, req->dataoffset |
|
|
120 | + req->result > 0 ? req->result : 0); |
|
|
121 | |
|
|
122 | if (req->data) |
|
|
123 | SvREFCNT_dec (req->data); |
|
|
124 | |
|
|
125 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
|
|
126 | { |
477 | { |
127 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
478 | SV *rv = &PL_sv_undef; |
128 | PL_laststatval = req->result; |
|
|
129 | PL_statcache = *(req->statdata); |
|
|
130 | |
479 | |
131 | Safefree (req->statdata); |
480 | if (req->result >= 0) |
|
|
481 | { |
|
|
482 | int i; |
|
|
483 | char *buf = req->ptr2; |
|
|
484 | AV *av = newAV (); |
|
|
485 | |
|
|
486 | av_extend (av, req->result - 1); |
|
|
487 | |
|
|
488 | for (i = 0; i < req->result; ++i) |
|
|
489 | { |
|
|
490 | SV *sv = newSVpv (buf, 0); |
|
|
491 | |
|
|
492 | av_store (av, i, sv); |
|
|
493 | buf += SvCUR (sv) + 1; |
|
|
494 | } |
|
|
495 | |
|
|
496 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
497 | } |
|
|
498 | |
|
|
499 | PUSHs (rv); |
132 | } |
500 | } |
|
|
501 | break; |
133 | |
502 | |
134 | PUSHMARK (SP); |
503 | case REQ_OPEN: |
135 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
136 | |
|
|
137 | if (req->type == REQ_OPEN) |
|
|
138 | { |
504 | { |
139 | /* convert fd to fh */ |
505 | /* convert fd to fh */ |
140 | SV *fh; |
506 | SV *fh; |
141 | |
507 | |
|
|
508 | PUSHs (sv_2mortal (newSViv (req->result))); |
142 | PUTBACK; |
509 | PUTBACK; |
143 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
510 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
144 | SPAGAIN; |
511 | SPAGAIN; |
145 | |
512 | |
146 | fh = POPs; |
513 | fh = POPs; |
147 | |
|
|
148 | PUSHMARK (SP); |
514 | PUSHMARK (SP); |
149 | XPUSHs (fh); |
515 | XPUSHs (fh); |
150 | } |
516 | } |
|
|
517 | break; |
151 | |
518 | |
152 | if (SvOK (req->callback)) |
519 | case REQ_GROUP: |
|
|
520 | req->int1 = 2; /* mark group as finished */ |
|
|
521 | |
|
|
522 | if (req->sv1) |
153 | { |
523 | { |
154 | PUTBACK; |
524 | int i; |
155 | call_sv (req->callback, G_VOID | G_EVAL); |
525 | AV *av = (AV *)req->sv1; |
156 | SPAGAIN; |
526 | |
|
|
527 | EXTEND (SP, AvFILL (av) + 1); |
|
|
528 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
529 | PUSHs (*av_fetch (av, i, 0)); |
157 | } |
530 | } |
|
|
531 | break; |
|
|
532 | |
|
|
533 | case REQ_NOP: |
|
|
534 | case REQ_BUSY: |
|
|
535 | break; |
|
|
536 | |
|
|
537 | case REQ_READLINK: |
|
|
538 | if (req->result > 0) |
158 | |
539 | { |
159 | if (req->callback) |
540 | SvCUR_set (req->sv2, req->result); |
160 | SvREFCNT_dec (req->callback); |
541 | *SvEND (req->sv2) = 0; |
|
|
542 | PUSHs (req->sv2); |
|
|
543 | } |
|
|
544 | break; |
161 | |
545 | |
162 | errno = errorno; |
546 | case REQ_STAT: |
163 | count++; |
547 | case REQ_LSTAT: |
|
|
548 | case REQ_FSTAT: |
|
|
549 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
550 | PL_laststatval = req->result; |
|
|
551 | PL_statcache = *(Stat_t *)(req->ptr2); |
|
|
552 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
553 | break; |
|
|
554 | |
|
|
555 | case REQ_READ: |
|
|
556 | SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); |
|
|
557 | *SvEND (req->sv2) = 0; |
|
|
558 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
559 | break; |
|
|
560 | |
|
|
561 | default: |
|
|
562 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
563 | break; |
164 | } |
564 | } |
165 | |
565 | |
166 | Safefree (req); |
566 | errno = req->errorno; |
|
|
567 | |
|
|
568 | PUTBACK; |
|
|
569 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
570 | SPAGAIN; |
|
|
571 | |
|
|
572 | FREETMPS; |
|
|
573 | LEAVE; |
167 | } |
574 | } |
168 | |
575 | |
169 | return count; |
576 | if (req->grp) |
170 | } |
577 | { |
|
|
578 | aio_req grp = req->grp; |
171 | |
579 | |
172 | static void *aio_proc(void *arg); |
580 | /* unlink request */ |
|
|
581 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
|
582 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
583 | |
|
|
584 | if (grp->grp_first == req) |
|
|
585 | grp->grp_first = req->grp_next; |
|
|
586 | |
|
|
587 | aio_grp_dec (grp); |
|
|
588 | } |
|
|
589 | |
|
|
590 | return !SvTRUE (ERRSV); |
|
|
591 | } |
|
|
592 | |
|
|
593 | static void req_destroy (aio_req req) |
|
|
594 | { |
|
|
595 | if (req->self) |
|
|
596 | { |
|
|
597 | sv_unmagic (req->self, PERL_MAGIC_ext); |
|
|
598 | SvREFCNT_dec (req->self); |
|
|
599 | } |
|
|
600 | |
|
|
601 | SvREFCNT_dec (req->sv1); |
|
|
602 | SvREFCNT_dec (req->sv2); |
|
|
603 | SvREFCNT_dec (req->callback); |
|
|
604 | |
|
|
605 | if (req->flags & FLAG_PTR2_FREE) |
|
|
606 | free (req->ptr2); |
|
|
607 | |
|
|
608 | Safefree (req); |
|
|
609 | } |
|
|
610 | |
|
|
611 | static void req_cancel_subs (aio_req grp) |
|
|
612 | { |
|
|
613 | aio_req sub; |
|
|
614 | |
|
|
615 | if (grp->type != REQ_GROUP) |
|
|
616 | return; |
|
|
617 | |
|
|
618 | SvREFCNT_dec (grp->sv2); |
|
|
619 | grp->sv2 = 0; |
|
|
620 | |
|
|
621 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
|
|
622 | req_cancel (sub); |
|
|
623 | } |
|
|
624 | |
|
|
625 | static void req_cancel (aio_req req) |
|
|
626 | { |
|
|
627 | req->flags |= FLAG_CANCELLED; |
|
|
628 | |
|
|
629 | req_cancel_subs (req); |
|
|
630 | } |
|
|
631 | |
|
|
632 | #ifdef USE_SOCKETS_AS_HANDLES |
|
|
633 | # define TO_SOCKET(x) (win32_get_osfhandle (x)) |
|
|
634 | #else |
|
|
635 | # define TO_SOCKET(x) (x) |
|
|
636 | #endif |
173 | |
637 | |
174 | static void |
638 | static void |
175 | start_thread (void) |
639 | create_respipe () |
176 | { |
640 | { |
177 | sigset_t fullsigset, oldsigset; |
641 | int old_readfd = respipe [0]; |
178 | pthread_t tid; |
|
|
179 | pthread_attr_t attr; |
|
|
180 | |
642 | |
181 | pthread_attr_init (&attr); |
643 | if (respipe [1] >= 0) |
182 | pthread_attr_setstacksize (&attr, STACKSIZE); |
644 | respipe_close (TO_SOCKET (respipe [1])); |
183 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
184 | |
645 | |
185 | sigfillset (&fullsigset); |
646 | #ifdef _WIN32 |
186 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
647 | if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe)) |
|
|
648 | #else |
|
|
649 | if (pipe (respipe)) |
|
|
650 | #endif |
|
|
651 | croak ("unable to initialize result pipe"); |
187 | |
652 | |
188 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
653 | if (old_readfd >= 0) |
189 | started++; |
|
|
190 | |
|
|
191 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
192 | } |
|
|
193 | |
|
|
194 | static void |
|
|
195 | send_req (aio_req req) |
|
|
196 | { |
|
|
197 | nreqs++; |
|
|
198 | |
|
|
199 | pthread_mutex_lock (&reqlock); |
|
|
200 | |
|
|
201 | req->next = 0; |
|
|
202 | |
|
|
203 | if (reqe) |
|
|
204 | { |
654 | { |
205 | reqe->next = req; |
655 | if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0) |
206 | reqe = req; |
656 | croak ("unable to initialize result pipe(2)"); |
|
|
657 | |
|
|
658 | respipe_close (respipe [0]); |
|
|
659 | respipe [0] = old_readfd; |
|
|
660 | } |
|
|
661 | |
|
|
662 | #ifdef _WIN32 |
|
|
663 | int arg = 1; |
|
|
664 | if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg) |
|
|
665 | || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg)) |
|
|
666 | #else |
|
|
667 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK) |
|
|
668 | || fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
669 | #endif |
|
|
670 | croak ("unable to initialize result pipe(3)"); |
|
|
671 | |
|
|
672 | respipe_osf [0] = TO_SOCKET (respipe [0]); |
|
|
673 | respipe_osf [1] = TO_SOCKET (respipe [1]); |
|
|
674 | } |
|
|
675 | |
|
|
676 | X_THREAD_PROC (aio_proc); |
|
|
677 | |
|
|
678 | static void start_thread (void) |
|
|
679 | { |
|
|
680 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
681 | |
|
|
682 | if (!wrk) |
|
|
683 | croak ("unable to allocate worker thread data"); |
|
|
684 | |
|
|
685 | X_LOCK (wrklock); |
|
|
686 | |
|
|
687 | if (thread_create (&wrk->tid, aio_proc, (void *)wrk)) |
|
|
688 | { |
|
|
689 | wrk->prev = &wrk_first; |
|
|
690 | wrk->next = wrk_first.next; |
|
|
691 | wrk_first.next->prev = wrk; |
|
|
692 | wrk_first.next = wrk; |
|
|
693 | ++started; |
207 | } |
694 | } |
208 | else |
695 | else |
209 | reqe = reqs = req; |
696 | free (wrk); |
210 | |
697 | |
211 | pthread_cond_signal (&reqwait); |
698 | X_UNLOCK (wrklock); |
212 | pthread_mutex_unlock (&reqlock); |
699 | } |
213 | |
700 | |
214 | while (nreqs > max_outstanding) |
701 | static void maybe_start_thread () |
|
|
702 | { |
|
|
703 | if (get_nthreads () >= wanted) |
|
|
704 | return; |
|
|
705 | |
|
|
706 | /* todo: maybe use idle here, but might be less exact */ |
|
|
707 | if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs) |
|
|
708 | return; |
|
|
709 | |
|
|
710 | start_thread (); |
|
|
711 | } |
|
|
712 | |
|
|
713 | static void req_send (aio_req req) |
|
|
714 | { |
|
|
715 | block_sig (); |
|
|
716 | |
|
|
717 | ++nreqs; |
|
|
718 | |
|
|
719 | X_LOCK (reqlock); |
|
|
720 | ++nready; |
|
|
721 | reqq_push (&req_queue, req); |
|
|
722 | X_COND_SIGNAL (reqwait); |
|
|
723 | X_UNLOCK (reqlock); |
|
|
724 | |
|
|
725 | unblock_sig (); |
|
|
726 | |
|
|
727 | maybe_start_thread (); |
|
|
728 | } |
|
|
729 | |
|
|
730 | static void end_thread (void) |
|
|
731 | { |
|
|
732 | aio_req req; |
|
|
733 | |
|
|
734 | Newz (0, req, 1, aio_cb); |
|
|
735 | |
|
|
736 | req->type = REQ_QUIT; |
|
|
737 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
738 | |
|
|
739 | X_LOCK (reqlock); |
|
|
740 | reqq_push (&req_queue, req); |
|
|
741 | X_COND_SIGNAL (reqwait); |
|
|
742 | X_UNLOCK (reqlock); |
|
|
743 | |
|
|
744 | X_LOCK (wrklock); |
|
|
745 | --started; |
|
|
746 | X_UNLOCK (wrklock); |
|
|
747 | } |
|
|
748 | |
|
|
749 | static void set_max_idle (int nthreads) |
|
|
750 | { |
|
|
751 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
|
|
752 | max_idle = nthreads <= 0 ? 1 : nthreads; |
|
|
753 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
|
|
754 | } |
|
|
755 | |
|
|
756 | static void min_parallel (int nthreads) |
|
|
757 | { |
|
|
758 | if (wanted < nthreads) |
|
|
759 | wanted = nthreads; |
|
|
760 | } |
|
|
761 | |
|
|
762 | static void max_parallel (int nthreads) |
|
|
763 | { |
|
|
764 | if (wanted > nthreads) |
|
|
765 | wanted = nthreads; |
|
|
766 | |
|
|
767 | while (started > wanted) |
|
|
768 | end_thread (); |
|
|
769 | } |
|
|
770 | |
|
|
771 | static void poll_wait () |
|
|
772 | { |
|
|
773 | fd_set rfd; |
|
|
774 | |
|
|
775 | while (nreqs) |
215 | { |
776 | { |
|
|
777 | int size; |
|
|
778 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
|
|
779 | size = res_queue.size; |
|
|
780 | if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); |
|
|
781 | |
|
|
782 | if (size) |
|
|
783 | return; |
|
|
784 | |
|
|
785 | maybe_start_thread (); |
|
|
786 | |
|
|
787 | FD_ZERO (&rfd); |
|
|
788 | FD_SET (respipe [0], &rfd); |
|
|
789 | |
|
|
790 | PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0); |
|
|
791 | } |
|
|
792 | } |
|
|
793 | |
|
|
794 | static int poll_cb () |
|
|
795 | { |
|
|
796 | dSP; |
|
|
797 | int count = 0; |
|
|
798 | int maxreqs = max_poll_reqs; |
|
|
799 | int do_croak = 0; |
|
|
800 | struct timeval tv_start, tv_now; |
|
|
801 | aio_req req; |
|
|
802 | |
|
|
803 | if (max_poll_time) |
|
|
804 | gettimeofday (&tv_start, 0); |
|
|
805 | |
|
|
806 | block_sig (); |
|
|
807 | |
|
|
808 | for (;;) |
|
|
809 | { |
|
|
810 | for (;;) |
|
|
811 | { |
|
|
812 | maybe_start_thread (); |
|
|
813 | |
|
|
814 | X_LOCK (reslock); |
|
|
815 | req = reqq_shift (&res_queue); |
|
|
816 | |
|
|
817 | if (req) |
|
|
818 | { |
|
|
819 | --npending; |
|
|
820 | |
|
|
821 | if (!res_queue.size) |
|
|
822 | { |
|
|
823 | /* read any signals sent by the worker threads */ |
|
|
824 | char buf [4]; |
|
|
825 | while (respipe_read (respipe [0], buf, 4) == 4) |
|
|
826 | ; |
|
|
827 | } |
|
|
828 | } |
|
|
829 | |
|
|
830 | X_UNLOCK (reslock); |
|
|
831 | |
|
|
832 | if (!req) |
|
|
833 | break; |
|
|
834 | |
|
|
835 | --nreqs; |
|
|
836 | |
|
|
837 | if (req->type == REQ_GROUP && req->size) |
|
|
838 | { |
|
|
839 | req->int1 = 1; /* mark request as delayed */ |
|
|
840 | continue; |
|
|
841 | } |
|
|
842 | else |
|
|
843 | { |
|
|
844 | if (!req_invoke (req)) |
|
|
845 | { |
|
|
846 | req_destroy (req); |
|
|
847 | unblock_sig (); |
|
|
848 | croak (0); |
|
|
849 | } |
|
|
850 | |
|
|
851 | count++; |
|
|
852 | } |
|
|
853 | |
|
|
854 | req_destroy (req); |
|
|
855 | |
|
|
856 | if (maxreqs && !--maxreqs) |
|
|
857 | break; |
|
|
858 | |
|
|
859 | if (max_poll_time) |
|
|
860 | { |
|
|
861 | gettimeofday (&tv_now, 0); |
|
|
862 | |
|
|
863 | if (tvdiff (&tv_start, &tv_now) >= max_poll_time) |
|
|
864 | break; |
|
|
865 | } |
|
|
866 | } |
|
|
867 | |
|
|
868 | if (nreqs <= max_outstanding) |
|
|
869 | break; |
|
|
870 | |
216 | poll_wait (); |
871 | poll_wait (); |
217 | poll_cb (); |
872 | |
|
|
873 | ++maxreqs; |
218 | } |
874 | } |
219 | } |
|
|
220 | |
875 | |
221 | static void |
876 | unblock_sig (); |
222 | end_thread (void) |
877 | return count; |
223 | { |
|
|
224 | aio_req req; |
|
|
225 | New (0, req, 1, aio_cb); |
|
|
226 | req->type = REQ_QUIT; |
|
|
227 | |
|
|
228 | send_req (req); |
|
|
229 | } |
878 | } |
230 | |
879 | |
231 | static void |
880 | /*****************************************************************************/ |
232 | read_write (int dowrite, int fd, off_t offset, size_t length, |
881 | /* work around various missing functions */ |
233 | SV *data, STRLEN dataoffset, SV *callback) |
|
|
234 | { |
|
|
235 | aio_req req; |
|
|
236 | STRLEN svlen; |
|
|
237 | char *svptr = SvPV (data, svlen); |
|
|
238 | |
882 | |
239 | SvUPGRADE (data, SVt_PV); |
883 | #if !HAVE_PREADWRITE |
240 | SvPOK_on (data); |
884 | # define pread aio_pread |
|
|
885 | # define pwrite aio_pwrite |
241 | |
886 | |
242 | if (dataoffset < 0) |
887 | /* |
243 | dataoffset += svlen; |
888 | * make our pread/pwrite safe against themselves, but not against |
|
|
889 | * normal read/write by using a mutex. slows down execution a lot, |
|
|
890 | * but that's your problem, not mine. |
|
|
891 | */ |
|
|
892 | static mutex_t preadwritelock = X_MUTEX_INIT; |
244 | |
893 | |
245 | if (dataoffset < 0 || dataoffset > svlen) |
894 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
246 | croak ("data offset outside of string"); |
895 | { |
|
|
896 | ssize_t res; |
|
|
897 | off_t ooffset; |
247 | |
898 | |
248 | if (dowrite) |
899 | X_LOCK (preadwritelock); |
|
|
900 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
901 | lseek (fd, offset, SEEK_SET); |
|
|
902 | res = read (fd, buf, count); |
|
|
903 | lseek (fd, ooffset, SEEK_SET); |
|
|
904 | X_UNLOCK (preadwritelock); |
|
|
905 | |
|
|
906 | return res; |
|
|
907 | } |
|
|
908 | |
|
|
909 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
|
|
910 | { |
|
|
911 | ssize_t res; |
|
|
912 | off_t ooffset; |
|
|
913 | |
|
|
914 | X_LOCK (preadwritelock); |
|
|
915 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
916 | lseek (fd, offset, SEEK_SET); |
|
|
917 | res = write (fd, buf, count); |
|
|
918 | lseek (fd, offset, SEEK_SET); |
|
|
919 | X_UNLOCK (preadwritelock); |
|
|
920 | |
|
|
921 | return res; |
|
|
922 | } |
|
|
923 | #endif |
|
|
924 | |
|
|
925 | #ifndef HAVE_FUTIMES |
|
|
926 | |
|
|
927 | # define utimes(path,times) aio_utimes (path, times) |
|
|
928 | # define futimes(fd,times) aio_futimes (fd, times) |
|
|
929 | |
|
|
930 | int aio_utimes (const char *filename, const struct timeval times[2]) |
|
|
931 | { |
|
|
932 | if (times) |
249 | { |
933 | { |
250 | /* write: check length and adjust. */ |
934 | struct utimbuf buf; |
251 | if (length < 0 || length + dataoffset > svlen) |
935 | |
252 | length = svlen - dataoffset; |
936 | buf.actime = times[0].tv_sec; |
|
|
937 | buf.modtime = times[1].tv_sec; |
|
|
938 | |
|
|
939 | return utime (filename, &buf); |
253 | } |
940 | } |
254 | else |
941 | else |
|
|
942 | return utime (filename, 0); |
|
|
943 | } |
|
|
944 | |
|
|
945 | int aio_futimes (int fd, const struct timeval tv[2]) |
|
|
946 | { |
|
|
947 | errno = ENOSYS; |
|
|
948 | return -1; |
|
|
949 | } |
|
|
950 | |
|
|
951 | #endif |
|
|
952 | |
|
|
953 | #if !HAVE_FDATASYNC |
|
|
954 | # define fdatasync fsync |
|
|
955 | #endif |
|
|
956 | |
|
|
957 | #if !HAVE_READAHEAD |
|
|
958 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
|
|
959 | |
|
|
960 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
|
|
961 | { |
|
|
962 | size_t todo = count; |
|
|
963 | dBUF; |
|
|
964 | |
|
|
965 | while (todo > 0) |
255 | { |
966 | { |
256 | /* read: grow scalar as necessary */ |
967 | size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE; |
257 | svptr = SvGROW (data, length + dataoffset); |
968 | |
|
|
969 | pread (fd, aio_buf, len, offset); |
|
|
970 | offset += len; |
|
|
971 | todo -= len; |
258 | } |
972 | } |
259 | |
973 | |
260 | if (length < 0) |
974 | errno = 0; |
261 | croak ("length must not be negative"); |
975 | return count; |
|
|
976 | } |
262 | |
977 | |
263 | Newz (0, req, 1, aio_cb); |
978 | #endif |
264 | |
979 | |
|
|
980 | #if !HAVE_READDIR_R |
|
|
981 | # define readdir_r aio_readdir_r |
|
|
982 | |
|
|
983 | static mutex_t readdirlock = X_MUTEX_INIT; |
|
|
984 | |
|
|
985 | static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res) |
|
|
986 | { |
|
|
987 | X_DIRENT *e; |
|
|
988 | int errorno; |
|
|
989 | |
|
|
990 | X_LOCK (readdirlock); |
|
|
991 | |
|
|
992 | e = readdir (dirp); |
|
|
993 | errorno = errno; |
|
|
994 | |
265 | if (!req) |
995 | if (e) |
266 | croak ("out of memory during aio_req allocation"); |
996 | { |
|
|
997 | *res = ent; |
|
|
998 | strcpy (ent->d_name, e->d_name); |
|
|
999 | } |
|
|
1000 | else |
|
|
1001 | *res = 0; |
267 | |
1002 | |
268 | req->type = dowrite ? REQ_WRITE : REQ_READ; |
1003 | X_UNLOCK (readdirlock); |
269 | req->fd = fd; |
|
|
270 | req->offset = offset; |
|
|
271 | req->length = length; |
|
|
272 | req->data = SvREFCNT_inc (data); |
|
|
273 | req->dataptr = (char *)svptr + dataoffset; |
|
|
274 | req->callback = SvREFCNT_inc (callback); |
|
|
275 | |
1004 | |
276 | send_req (req); |
1005 | errno = errorno; |
|
|
1006 | return e ? 0 : -1; |
277 | } |
1007 | } |
|
|
1008 | #endif |
278 | |
1009 | |
279 | static void * |
1010 | /* sendfile always needs emulation */ |
280 | aio_proc (void *thr_arg) |
1011 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
281 | { |
1012 | { |
|
|
1013 | ssize_t res; |
|
|
1014 | |
|
|
1015 | if (!count) |
|
|
1016 | return 0; |
|
|
1017 | |
|
|
1018 | #if HAVE_SENDFILE |
|
|
1019 | # if __linux |
|
|
1020 | res = sendfile (ofd, ifd, &offset, count); |
|
|
1021 | |
|
|
1022 | # elif __freebsd |
|
|
1023 | /* |
|
|
1024 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
1025 | * wasted on making it similar to other I/O functions. |
|
|
1026 | */ |
|
|
1027 | { |
|
|
1028 | off_t sbytes; |
|
|
1029 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
1030 | |
|
|
1031 | if (res < 0 && sbytes) |
|
|
1032 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
|
|
1033 | res = sbytes; |
|
|
1034 | } |
|
|
1035 | |
|
|
1036 | # elif __hpux |
|
|
1037 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
1038 | |
|
|
1039 | # elif __solaris |
|
|
1040 | { |
|
|
1041 | struct sendfilevec vec; |
|
|
1042 | size_t sbytes; |
|
|
1043 | |
|
|
1044 | vec.sfv_fd = ifd; |
|
|
1045 | vec.sfv_flag = 0; |
|
|
1046 | vec.sfv_off = offset; |
|
|
1047 | vec.sfv_len = count; |
|
|
1048 | |
|
|
1049 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
1050 | |
|
|
1051 | if (res < 0 && sbytes) |
|
|
1052 | res = sbytes; |
|
|
1053 | } |
|
|
1054 | |
|
|
1055 | # endif |
|
|
1056 | #else |
|
|
1057 | res = -1; |
|
|
1058 | errno = ENOSYS; |
|
|
1059 | #endif |
|
|
1060 | |
|
|
1061 | if (res < 0 |
|
|
1062 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
1063 | #if __solaris |
|
|
1064 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
1065 | #endif |
|
|
1066 | ) |
|
|
1067 | ) |
|
|
1068 | { |
|
|
1069 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
1070 | dBUF; |
|
|
1071 | |
|
|
1072 | res = 0; |
|
|
1073 | |
|
|
1074 | while (count) |
|
|
1075 | { |
|
|
1076 | ssize_t cnt; |
|
|
1077 | |
|
|
1078 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
|
|
1079 | |
|
|
1080 | if (cnt <= 0) |
|
|
1081 | { |
|
|
1082 | if (cnt && !res) res = -1; |
|
|
1083 | break; |
|
|
1084 | } |
|
|
1085 | |
|
|
1086 | cnt = write (ofd, aio_buf, cnt); |
|
|
1087 | |
|
|
1088 | if (cnt <= 0) |
|
|
1089 | { |
|
|
1090 | if (cnt && !res) res = -1; |
|
|
1091 | break; |
|
|
1092 | } |
|
|
1093 | |
|
|
1094 | offset += cnt; |
|
|
1095 | res += cnt; |
|
|
1096 | count -= cnt; |
|
|
1097 | } |
|
|
1098 | } |
|
|
1099 | |
|
|
1100 | return res; |
|
|
1101 | } |
|
|
1102 | |
|
|
1103 | /* read a full directory */ |
|
|
1104 | static void scandir_ (aio_req req, worker *self) |
|
|
1105 | { |
|
|
1106 | DIR *dirp; |
|
|
1107 | union |
|
|
1108 | { |
|
|
1109 | X_DIRENT d; |
|
|
1110 | char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1]; |
|
|
1111 | } *u; |
|
|
1112 | X_DIRENT *entp; |
|
|
1113 | char *name, *names; |
|
|
1114 | int memlen = 4096; |
|
|
1115 | int memofs = 0; |
|
|
1116 | int res = 0; |
|
|
1117 | |
|
|
1118 | X_LOCK (wrklock); |
|
|
1119 | self->dirp = dirp = opendir (req->ptr1); |
|
|
1120 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
1121 | req->flags |= FLAG_PTR2_FREE; |
|
|
1122 | req->ptr2 = names = malloc (memlen); |
|
|
1123 | X_UNLOCK (wrklock); |
|
|
1124 | |
|
|
1125 | if (dirp && u && names) |
|
|
1126 | for (;;) |
|
|
1127 | { |
|
|
1128 | errno = 0; |
|
|
1129 | readdir_r (dirp, &u->d, &entp); |
|
|
1130 | |
|
|
1131 | if (!entp) |
|
|
1132 | break; |
|
|
1133 | |
|
|
1134 | name = entp->d_name; |
|
|
1135 | |
|
|
1136 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1137 | { |
|
|
1138 | int len = strlen (name) + 1; |
|
|
1139 | |
|
|
1140 | res++; |
|
|
1141 | |
|
|
1142 | while (memofs + len > memlen) |
|
|
1143 | { |
|
|
1144 | memlen *= 2; |
|
|
1145 | X_LOCK (wrklock); |
|
|
1146 | req->ptr2 = names = realloc (names, memlen); |
|
|
1147 | X_UNLOCK (wrklock); |
|
|
1148 | |
|
|
1149 | if (!names) |
|
|
1150 | break; |
|
|
1151 | } |
|
|
1152 | |
|
|
1153 | memcpy (names + memofs, name, len); |
|
|
1154 | memofs += len; |
|
|
1155 | } |
|
|
1156 | } |
|
|
1157 | |
|
|
1158 | if (errno) |
|
|
1159 | res = -1; |
|
|
1160 | |
|
|
1161 | req->result = res; |
|
|
1162 | } |
|
|
1163 | |
|
|
1164 | /*****************************************************************************/ |
|
|
1165 | |
|
|
1166 | X_THREAD_PROC (aio_proc) |
|
|
1167 | { |
|
|
1168 | {//D |
282 | aio_req req; |
1169 | aio_req req; |
283 | int type; |
1170 | struct timespec ts; |
|
|
1171 | worker *self = (worker *)thr_arg; |
284 | |
1172 | |
285 | do |
1173 | /* try to distribute timeouts somewhat randomly */ |
|
|
1174 | ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL); |
|
|
1175 | |
|
|
1176 | for (;;) |
286 | { |
1177 | { |
287 | pthread_mutex_lock (&reqlock); |
1178 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1179 | |
|
|
1180 | X_LOCK (reqlock); |
288 | |
1181 | |
289 | for (;;) |
1182 | for (;;) |
290 | { |
1183 | { |
291 | req = reqs; |
1184 | self->req = req = reqq_shift (&req_queue); |
292 | |
|
|
293 | if (reqs) |
|
|
294 | { |
|
|
295 | reqs = reqs->next; |
|
|
296 | if (!reqs) reqe = 0; |
|
|
297 | } |
|
|
298 | |
1185 | |
299 | if (req) |
1186 | if (req) |
300 | break; |
1187 | break; |
301 | |
1188 | |
302 | pthread_cond_wait (&reqwait, &reqlock); |
1189 | ++idle; |
|
|
1190 | |
|
|
1191 | if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) |
|
|
1192 | == ETIMEDOUT) |
|
|
1193 | { |
|
|
1194 | if (idle > max_idle) |
|
|
1195 | { |
|
|
1196 | --idle; |
|
|
1197 | X_UNLOCK (reqlock); |
|
|
1198 | X_LOCK (wrklock); |
|
|
1199 | --started; |
|
|
1200 | X_UNLOCK (wrklock); |
|
|
1201 | goto quit; |
|
|
1202 | } |
|
|
1203 | |
|
|
1204 | /* we are allowed to idle, so do so without any timeout */ |
|
|
1205 | X_COND_WAIT (reqwait, reqlock); |
|
|
1206 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1207 | } |
|
|
1208 | |
|
|
1209 | --idle; |
303 | } |
1210 | } |
304 | |
1211 | |
305 | pthread_mutex_unlock (&reqlock); |
1212 | --nready; |
|
|
1213 | |
|
|
1214 | X_UNLOCK (reqlock); |
306 | |
1215 | |
307 | errno = 0; /* strictly unnecessary */ |
1216 | errno = 0; /* strictly unnecessary */ |
308 | |
1217 | |
309 | type = req->type; |
1218 | if (!(req->flags & FLAG_CANCELLED)) |
310 | |
|
|
311 | switch (type) |
1219 | switch (req->type) |
|
|
1220 | { |
|
|
1221 | case REQ_READ: req->result = req->offs >= 0 |
|
|
1222 | ? pread (req->int1, req->ptr1, req->size, req->offs) |
|
|
1223 | : read (req->int1, req->ptr1, req->size); break; |
|
|
1224 | case REQ_WRITE: req->result = req->offs >= 0 |
|
|
1225 | ? pwrite (req->int1, req->ptr1, req->size, req->offs) |
|
|
1226 | : write (req->int1, req->ptr1, req->size); break; |
|
|
1227 | |
|
|
1228 | case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
|
|
1229 | case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break; |
|
|
1230 | |
|
|
1231 | case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break; |
|
|
1232 | case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break; |
|
|
1233 | case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break; |
|
|
1234 | |
|
|
1235 | case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break; |
|
|
1236 | case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
|
|
1237 | case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break; |
|
|
1238 | case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break; |
|
|
1239 | case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break; |
|
|
1240 | case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break; |
|
|
1241 | |
|
|
1242 | case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break; |
|
|
1243 | case REQ_CLOSE: req->result = close (req->int1); break; |
|
|
1244 | case REQ_UNLINK: req->result = unlink (req->ptr1); break; |
|
|
1245 | case REQ_RMDIR: req->result = rmdir (req->ptr1); break; |
|
|
1246 | case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break; |
|
|
1247 | case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break; |
|
|
1248 | case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break; |
|
|
1249 | case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break; |
|
|
1250 | case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break; |
|
|
1251 | case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break; |
|
|
1252 | |
|
|
1253 | case REQ_FDATASYNC: req->result = fdatasync (req->int1); break; |
|
|
1254 | case REQ_FSYNC: req->result = fsync (req->int1); break; |
|
|
1255 | case REQ_READDIR: scandir_ (req, self); break; |
|
|
1256 | |
|
|
1257 | case REQ_BUSY: |
|
|
1258 | #ifdef _WIN32 |
|
|
1259 | Sleep (req->nv1 * 1000.); |
|
|
1260 | #else |
|
|
1261 | { |
|
|
1262 | struct timeval tv; |
|
|
1263 | |
|
|
1264 | tv.tv_sec = req->nv1; |
|
|
1265 | tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.; |
|
|
1266 | |
|
|
1267 | req->result = select (0, 0, 0, 0, &tv); |
|
|
1268 | } |
|
|
1269 | #endif |
|
|
1270 | break; |
|
|
1271 | |
|
|
1272 | case REQ_UTIME: |
|
|
1273 | case REQ_FUTIME: |
|
|
1274 | { |
|
|
1275 | struct timeval tv[2]; |
|
|
1276 | struct timeval *times; |
|
|
1277 | |
|
|
1278 | if (req->nv1 != -1. || req->nv2 != -1.) |
|
|
1279 | { |
|
|
1280 | tv[0].tv_sec = req->nv1; |
|
|
1281 | tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.; |
|
|
1282 | tv[1].tv_sec = req->nv2; |
|
|
1283 | tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.; |
|
|
1284 | |
|
|
1285 | times = tv; |
|
|
1286 | } |
|
|
1287 | else |
|
|
1288 | times = 0; |
|
|
1289 | |
|
|
1290 | |
|
|
1291 | req->result = req->type == REQ_FUTIME |
|
|
1292 | ? futimes (req->int1, times) |
|
|
1293 | : utimes (req->ptr1, times); |
|
|
1294 | } |
|
|
1295 | |
|
|
1296 | case REQ_GROUP: |
|
|
1297 | case REQ_NOP: |
|
|
1298 | break; |
|
|
1299 | |
|
|
1300 | case REQ_QUIT: |
|
|
1301 | goto quit; |
|
|
1302 | |
|
|
1303 | default: |
|
|
1304 | req->result = -1; |
|
|
1305 | break; |
|
|
1306 | } |
|
|
1307 | |
|
|
1308 | req->errorno = errno; |
|
|
1309 | |
|
|
1310 | X_LOCK (reslock); |
|
|
1311 | |
|
|
1312 | ++npending; |
|
|
1313 | |
|
|
1314 | if (!reqq_push (&res_queue, req)) |
312 | { |
1315 | { |
313 | case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break; |
1316 | /* write a dummy byte to the pipe so fh becomes ready */ |
314 | case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, req->offset); break; |
1317 | respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1); |
315 | #if SYS_readahead |
1318 | |
316 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
1319 | /* optionally signal the main thread asynchronously */ |
|
|
1320 | if (main_sig) |
|
|
1321 | pthread_kill (main_tid, main_sig); |
|
|
1322 | } |
|
|
1323 | |
|
|
1324 | self->req = 0; |
|
|
1325 | worker_clear (self); |
|
|
1326 | |
|
|
1327 | X_UNLOCK (reslock); |
|
|
1328 | } |
|
|
1329 | |
|
|
1330 | quit: |
|
|
1331 | X_LOCK (wrklock); |
|
|
1332 | worker_free (self); |
|
|
1333 | X_UNLOCK (wrklock); |
|
|
1334 | |
|
|
1335 | return 0; |
|
|
1336 | }//D |
|
|
1337 | } |
|
|
1338 | |
|
|
1339 | /*****************************************************************************/ |
|
|
1340 | |
|
|
1341 | static void atfork_prepare (void) |
|
|
1342 | { |
|
|
1343 | X_LOCK (wrklock); |
|
|
1344 | X_LOCK (reqlock); |
|
|
1345 | X_LOCK (reslock); |
|
|
1346 | #if !HAVE_PREADWRITE |
|
|
1347 | X_LOCK (preadwritelock); |
|
|
1348 | #endif |
|
|
1349 | #if !HAVE_READDIR_R |
|
|
1350 | X_LOCK (readdirlock); |
|
|
1351 | #endif |
|
|
1352 | } |
|
|
1353 | |
|
|
1354 | static void atfork_parent (void) |
|
|
1355 | { |
|
|
1356 | #if !HAVE_READDIR_R |
|
|
1357 | X_UNLOCK (readdirlock); |
|
|
1358 | #endif |
|
|
1359 | #if !HAVE_PREADWRITE |
|
|
1360 | X_UNLOCK (preadwritelock); |
|
|
1361 | #endif |
|
|
1362 | X_UNLOCK (reslock); |
|
|
1363 | X_UNLOCK (reqlock); |
|
|
1364 | X_UNLOCK (wrklock); |
|
|
1365 | } |
|
|
1366 | |
|
|
1367 | static void atfork_child (void) |
|
|
1368 | { |
|
|
1369 | aio_req prv; |
|
|
1370 | |
|
|
1371 | while (prv = reqq_shift (&req_queue)) |
|
|
1372 | req_destroy (prv); |
|
|
1373 | |
|
|
1374 | while (prv = reqq_shift (&res_queue)) |
|
|
1375 | req_destroy (prv); |
|
|
1376 | |
|
|
1377 | while (wrk_first.next != &wrk_first) |
|
|
1378 | { |
|
|
1379 | worker *wrk = wrk_first.next; |
|
|
1380 | |
|
|
1381 | if (wrk->req) |
|
|
1382 | req_destroy (wrk->req); |
|
|
1383 | |
|
|
1384 | worker_clear (wrk); |
|
|
1385 | worker_free (wrk); |
|
|
1386 | } |
|
|
1387 | |
|
|
1388 | started = 0; |
|
|
1389 | idle = 0; |
|
|
1390 | nreqs = 0; |
|
|
1391 | nready = 0; |
|
|
1392 | npending = 0; |
|
|
1393 | |
|
|
1394 | create_respipe (); |
|
|
1395 | |
|
|
1396 | atfork_parent (); |
|
|
1397 | } |
|
|
1398 | |
|
|
1399 | #define dREQ \ |
|
|
1400 | aio_req req; \ |
|
|
1401 | int req_pri = next_pri; \ |
|
|
1402 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
|
|
1403 | \ |
|
|
1404 | if (SvOK (callback) && !SvROK (callback)) \ |
|
|
1405 | croak ("callback must be undef or of reference type"); \ |
|
|
1406 | \ |
|
|
1407 | Newz (0, req, 1, aio_cb); \ |
|
|
1408 | if (!req) \ |
|
|
1409 | croak ("out of memory during aio_req allocation"); \ |
|
|
1410 | \ |
|
|
1411 | req->callback = newSVsv (callback); \ |
|
|
1412 | req->pri = req_pri |
|
|
1413 | |
|
|
1414 | #define REQ_SEND \ |
|
|
1415 | req_send (req); \ |
|
|
1416 | \ |
|
|
1417 | if (GIMME_V != G_VOID) \ |
|
|
1418 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
|
|
1419 | |
|
|
1420 | MODULE = IO::AIO PACKAGE = IO::AIO |
|
|
1421 | |
|
|
1422 | PROTOTYPES: ENABLE |
|
|
1423 | |
|
|
1424 | BOOT: |
|
|
1425 | { |
|
|
1426 | HV *stash = gv_stashpv ("IO::AIO", 1); |
|
|
1427 | |
|
|
1428 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
1429 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
1430 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1431 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1432 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1433 | #ifdef _WIN32 |
|
|
1434 | X_MUTEX_CHECK (wrklock); |
|
|
1435 | X_MUTEX_CHECK (reslock); |
|
|
1436 | X_MUTEX_CHECK (reqlock); |
|
|
1437 | X_MUTEX_CHECK (reqwait); |
|
|
1438 | X_MUTEX_CHECK (preadwritelock); |
|
|
1439 | X_MUTEX_CHECK (readdirlock); |
|
|
1440 | |
|
|
1441 | X_COND_CHECK (reqwait); |
317 | #else |
1442 | #else |
318 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
1443 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
|
|
1444 | newCONSTSUB (stash, "SIGIO", newSViv (SIGIO)); |
319 | #endif |
1445 | #endif |
320 | |
1446 | |
321 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
1447 | create_respipe (); |
322 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
|
|
323 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
|
|
324 | |
1448 | |
325 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
1449 | X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); |
326 | case REQ_CLOSE: req->result = close (req->fd); break; |
|
|
327 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
|
|
328 | |
|
|
329 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
330 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
|
|
331 | |
|
|
332 | case REQ_QUIT: |
|
|
333 | break; |
|
|
334 | |
|
|
335 | default: |
|
|
336 | req->result = ENOSYS; |
|
|
337 | break; |
|
|
338 | } |
|
|
339 | |
|
|
340 | req->errorno = errno; |
|
|
341 | |
|
|
342 | pthread_mutex_lock (&reslock); |
|
|
343 | |
|
|
344 | req->next = 0; |
|
|
345 | |
|
|
346 | if (rese) |
|
|
347 | { |
|
|
348 | rese->next = req; |
|
|
349 | rese = req; |
|
|
350 | } |
|
|
351 | else |
|
|
352 | { |
|
|
353 | rese = ress = req; |
|
|
354 | |
|
|
355 | /* write a dummy byte to the pipe so fh becomes ready */ |
|
|
356 | write (respipe [1], &respipe, 1); |
|
|
357 | } |
|
|
358 | |
|
|
359 | pthread_mutex_unlock (&reslock); |
|
|
360 | } |
|
|
361 | while (type != REQ_QUIT); |
|
|
362 | |
|
|
363 | return 0; |
|
|
364 | } |
1450 | } |
365 | |
1451 | |
366 | MODULE = IO::AIO PACKAGE = IO::AIO |
|
|
367 | |
|
|
368 | PROTOTYPES: ENABLE |
|
|
369 | |
|
|
370 | BOOT: |
|
|
371 | { |
|
|
372 | if (pipe (respipe)) |
|
|
373 | croak ("unable to initialize result pipe"); |
|
|
374 | |
|
|
375 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
|
|
376 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
377 | |
|
|
378 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
379 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
380 | } |
|
|
381 | |
|
|
382 | void |
1452 | void |
383 | min_parallel(nthreads) |
1453 | max_poll_reqs (int nreqs) |
384 | int nthreads |
|
|
385 | PROTOTYPE: $ |
1454 | PROTOTYPE: $ |
386 | CODE: |
1455 | CODE: |
387 | while (nthreads > started) |
1456 | max_poll_reqs = nreqs; |
388 | start_thread (); |
|
|
389 | |
1457 | |
390 | void |
1458 | void |
391 | max_parallel(nthreads) |
1459 | max_poll_time (double nseconds) |
392 | int nthreads |
|
|
393 | PROTOTYPE: $ |
1460 | PROTOTYPE: $ |
394 | CODE: |
1461 | CODE: |
395 | { |
1462 | max_poll_time = nseconds * AIO_TICKS; |
396 | int cur = started; |
|
|
397 | while (cur > nthreads) |
|
|
398 | { |
|
|
399 | end_thread (); |
|
|
400 | cur--; |
|
|
401 | } |
|
|
402 | |
1463 | |
403 | while (started > nthreads) |
1464 | void |
404 | { |
1465 | min_parallel (int nthreads) |
405 | poll_wait (); |
1466 | PROTOTYPE: $ |
406 | poll_cb (); |
1467 | |
407 | } |
1468 | void |
408 | } |
1469 | max_parallel (int nthreads) |
|
|
1470 | PROTOTYPE: $ |
|
|
1471 | |
|
|
1472 | void |
|
|
1473 | max_idle (int nthreads) |
|
|
1474 | PROTOTYPE: $ |
|
|
1475 | CODE: |
|
|
1476 | set_max_idle (nthreads); |
409 | |
1477 | |
410 | int |
1478 | int |
411 | max_outstanding(nreqs) |
1479 | max_outstanding (int maxreqs) |
412 | int nreqs |
1480 | PROTOTYPE: $ |
413 | PROTOTYPE: $ |
|
|
414 | CODE: |
1481 | CODE: |
415 | RETVAL = max_outstanding; |
1482 | RETVAL = max_outstanding; |
416 | max_outstanding = nreqs; |
1483 | max_outstanding = maxreqs; |
|
|
1484 | OUTPUT: |
|
|
1485 | RETVAL |
417 | |
1486 | |
418 | void |
1487 | void |
419 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
1488 | aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) |
420 | SV * pathname |
|
|
421 | int flags |
|
|
422 | int mode |
|
|
423 | SV * callback |
|
|
424 | PROTOTYPE: $$$;$ |
1489 | PROTOTYPE: $$$;$ |
425 | CODE: |
1490 | PPCODE: |
426 | { |
1491 | { |
427 | aio_req req; |
1492 | dREQ; |
428 | |
|
|
429 | Newz (0, req, 1, aio_cb); |
|
|
430 | |
|
|
431 | if (!req) |
|
|
432 | croak ("out of memory during aio_req allocation"); |
|
|
433 | |
1493 | |
434 | req->type = REQ_OPEN; |
1494 | req->type = REQ_OPEN; |
435 | req->data = newSVsv (pathname); |
1495 | req->sv1 = newSVsv (pathname); |
436 | req->dataptr = SvPV_nolen (req->data); |
1496 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
437 | req->fd = flags; |
1497 | req->int1 = flags; |
438 | req->mode = mode; |
1498 | req->mode = mode; |
439 | req->callback = SvREFCNT_inc (callback); |
|
|
440 | |
1499 | |
441 | send_req (req); |
1500 | REQ_SEND; |
442 | } |
1501 | } |
443 | |
1502 | |
444 | void |
1503 | void |
445 | aio_close(fh,callback=&PL_sv_undef) |
1504 | aio_close (SV *fh, SV *callback=&PL_sv_undef) |
446 | InputStream fh |
|
|
447 | SV * callback |
|
|
448 | PROTOTYPE: $;$ |
1505 | PROTOTYPE: $;$ |
449 | ALIAS: |
1506 | ALIAS: |
450 | aio_close = REQ_CLOSE |
1507 | aio_close = REQ_CLOSE |
451 | aio_fsync = REQ_FSYNC |
1508 | aio_fsync = REQ_FSYNC |
452 | aio_fdatasync = REQ_FDATASYNC |
1509 | aio_fdatasync = REQ_FDATASYNC |
453 | CODE: |
1510 | PPCODE: |
454 | { |
1511 | { |
455 | aio_req req; |
1512 | dREQ; |
456 | |
|
|
457 | Newz (0, req, 1, aio_cb); |
|
|
458 | |
|
|
459 | if (!req) |
|
|
460 | croak ("out of memory during aio_req allocation"); |
|
|
461 | |
1513 | |
462 | req->type = ix; |
1514 | req->type = ix; |
|
|
1515 | req->sv1 = newSVsv (fh); |
463 | req->fd = PerlIO_fileno (fh); |
1516 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
464 | req->callback = SvREFCNT_inc (callback); |
|
|
465 | |
1517 | |
466 | send_req (req); |
1518 | REQ_SEND (req); |
467 | } |
1519 | } |
468 | |
1520 | |
469 | void |
1521 | void |
470 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1522 | aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) |
471 | InputStream fh |
1523 | ALIAS: |
472 | UV offset |
1524 | aio_read = REQ_READ |
473 | IV length |
1525 | aio_write = REQ_WRITE |
474 | SV * data |
|
|
475 | IV dataoffset |
|
|
476 | SV * callback |
|
|
477 | PROTOTYPE: $$$$$;$ |
1526 | PROTOTYPE: $$$$$;$ |
478 | CODE: |
1527 | PPCODE: |
479 | read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
1528 | { |
|
|
1529 | STRLEN svlen; |
|
|
1530 | char *svptr = SvPVbyte (data, svlen); |
|
|
1531 | UV len = SvUV (length); |
480 | |
1532 | |
|
|
1533 | SvUPGRADE (data, SVt_PV); |
|
|
1534 | SvPOK_on (data); |
|
|
1535 | |
|
|
1536 | if (dataoffset < 0) |
|
|
1537 | dataoffset += svlen; |
|
|
1538 | |
|
|
1539 | if (dataoffset < 0 || dataoffset > svlen) |
|
|
1540 | croak ("dataoffset outside of data scalar"); |
|
|
1541 | |
|
|
1542 | if (ix == REQ_WRITE) |
|
|
1543 | { |
|
|
1544 | /* write: check length and adjust. */ |
|
|
1545 | if (!SvOK (length) || len + dataoffset > svlen) |
|
|
1546 | len = svlen - dataoffset; |
|
|
1547 | } |
|
|
1548 | else |
|
|
1549 | { |
|
|
1550 | /* read: grow scalar as necessary */ |
|
|
1551 | svptr = SvGROW (data, len + dataoffset + 1); |
|
|
1552 | } |
|
|
1553 | |
|
|
1554 | if (len < 0) |
|
|
1555 | croak ("length must not be negative"); |
|
|
1556 | |
|
|
1557 | { |
|
|
1558 | dREQ; |
|
|
1559 | |
|
|
1560 | req->type = ix; |
|
|
1561 | req->sv1 = newSVsv (fh); |
|
|
1562 | req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
|
|
1563 | : IoOFP (sv_2io (fh))); |
|
|
1564 | req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
|
|
1565 | req->size = len; |
|
|
1566 | req->sv2 = SvREFCNT_inc (data); |
|
|
1567 | req->ptr1 = (char *)svptr + dataoffset; |
|
|
1568 | req->stroffset = dataoffset; |
|
|
1569 | |
|
|
1570 | if (!SvREADONLY (data)) |
|
|
1571 | { |
|
|
1572 | SvREADONLY_on (data); |
|
|
1573 | req->flags |= FLAG_SV2_RO_OFF; |
|
|
1574 | } |
|
|
1575 | |
|
|
1576 | REQ_SEND; |
|
|
1577 | } |
|
|
1578 | } |
|
|
1579 | |
481 | void |
1580 | void |
482 | aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1581 | aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) |
483 | OutputStream fh |
1582 | PROTOTYPE: $$;$ |
484 | UV offset |
1583 | PPCODE: |
485 | IV length |
1584 | { |
486 | SV * data |
1585 | SV *data; |
487 | IV dataoffset |
1586 | dREQ; |
488 | SV * callback |
1587 | |
|
|
1588 | data = newSV (NAME_MAX); |
|
|
1589 | SvPOK_on (data); |
|
|
1590 | |
|
|
1591 | req->type = REQ_READLINK; |
|
|
1592 | req->sv1 = newSVsv (path); |
|
|
1593 | req->ptr2 = SvPVbyte_nolen (req->sv1); |
|
|
1594 | req->sv2 = data; |
|
|
1595 | req->ptr1 = SvPVbyte_nolen (data); |
|
|
1596 | |
|
|
1597 | REQ_SEND; |
|
|
1598 | } |
|
|
1599 | |
|
|
1600 | void |
|
|
1601 | aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) |
489 | PROTOTYPE: $$$$$;$ |
1602 | PROTOTYPE: $$$$;$ |
490 | CODE: |
1603 | PPCODE: |
491 | read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
1604 | { |
|
|
1605 | dREQ; |
492 | |
1606 | |
|
|
1607 | req->type = REQ_SENDFILE; |
|
|
1608 | req->sv1 = newSVsv (out_fh); |
|
|
1609 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
1610 | req->sv2 = newSVsv (in_fh); |
|
|
1611 | req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
1612 | req->offs = SvVAL64 (in_offset); |
|
|
1613 | req->size = length; |
|
|
1614 | |
|
|
1615 | REQ_SEND; |
|
|
1616 | } |
|
|
1617 | |
493 | void |
1618 | void |
494 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
1619 | aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) |
495 | InputStream fh |
|
|
496 | UV offset |
|
|
497 | IV length |
|
|
498 | SV * callback |
|
|
499 | PROTOTYPE: $$$;$ |
1620 | PROTOTYPE: $$$;$ |
500 | CODE: |
1621 | PPCODE: |
501 | { |
1622 | { |
502 | aio_req req; |
1623 | dREQ; |
503 | |
|
|
504 | if (length < 0) |
|
|
505 | croak ("length must not be negative"); |
|
|
506 | |
|
|
507 | Newz (0, req, 1, aio_cb); |
|
|
508 | |
|
|
509 | if (!req) |
|
|
510 | croak ("out of memory during aio_req allocation"); |
|
|
511 | |
1624 | |
512 | req->type = REQ_READAHEAD; |
1625 | req->type = REQ_READAHEAD; |
|
|
1626 | req->sv1 = newSVsv (fh); |
513 | req->fd = PerlIO_fileno (fh); |
1627 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
514 | req->offset = offset; |
1628 | req->offs = SvVAL64 (offset); |
515 | req->length = length; |
1629 | req->size = length; |
516 | req->callback = SvREFCNT_inc (callback); |
|
|
517 | |
1630 | |
518 | send_req (req); |
1631 | REQ_SEND; |
519 | } |
1632 | } |
520 | |
1633 | |
521 | void |
1634 | void |
522 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
1635 | aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) |
523 | SV * fh_or_path |
|
|
524 | SV * callback |
|
|
525 | ALIAS: |
1636 | ALIAS: |
526 | aio_stat = REQ_STAT |
1637 | aio_stat = REQ_STAT |
527 | aio_lstat = REQ_LSTAT |
1638 | aio_lstat = REQ_LSTAT |
528 | CODE: |
1639 | PPCODE: |
529 | { |
1640 | { |
530 | aio_req req; |
1641 | dREQ; |
531 | |
1642 | |
532 | Newz (0, req, 1, aio_cb); |
1643 | req->ptr2 = malloc (sizeof (Stat_t)); |
533 | |
|
|
534 | if (!req) |
1644 | if (!req->ptr2) |
535 | croak ("out of memory during aio_req allocation"); |
1645 | { |
536 | |
1646 | req_destroy (req); |
537 | New (0, req->statdata, 1, Stat_t); |
|
|
538 | |
|
|
539 | if (!req->statdata) |
|
|
540 | croak ("out of memory during aio_req->statdata allocation"); |
1647 | croak ("out of memory during aio_stat statdata allocation"); |
|
|
1648 | } |
|
|
1649 | |
|
|
1650 | req->flags |= FLAG_PTR2_FREE; |
|
|
1651 | req->sv1 = newSVsv (fh_or_path); |
541 | |
1652 | |
542 | if (SvPOK (fh_or_path)) |
1653 | if (SvPOK (fh_or_path)) |
543 | { |
1654 | { |
544 | req->type = ix; |
1655 | req->type = ix; |
545 | req->data = newSVsv (fh_or_path); |
|
|
546 | req->dataptr = SvPV_nolen (req->data); |
1656 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
547 | } |
1657 | } |
548 | else |
1658 | else |
549 | { |
1659 | { |
550 | req->type = REQ_FSTAT; |
1660 | req->type = REQ_FSTAT; |
551 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1661 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
552 | } |
1662 | } |
553 | |
1663 | |
554 | req->callback = SvREFCNT_inc (callback); |
1664 | REQ_SEND; |
555 | |
|
|
556 | send_req (req); |
|
|
557 | } |
1665 | } |
558 | |
1666 | |
559 | void |
1667 | void |
|
|
1668 | aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) |
|
|
1669 | PPCODE: |
|
|
1670 | { |
|
|
1671 | dREQ; |
|
|
1672 | |
|
|
1673 | req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; |
|
|
1674 | req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; |
|
|
1675 | req->sv1 = newSVsv (fh_or_path); |
|
|
1676 | |
|
|
1677 | if (SvPOK (fh_or_path)) |
|
|
1678 | { |
|
|
1679 | req->type = REQ_UTIME; |
|
|
1680 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1681 | } |
|
|
1682 | else |
|
|
1683 | { |
|
|
1684 | req->type = REQ_FUTIME; |
|
|
1685 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1686 | } |
|
|
1687 | |
|
|
1688 | REQ_SEND; |
|
|
1689 | } |
|
|
1690 | |
|
|
1691 | void |
|
|
1692 | aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) |
|
|
1693 | PPCODE: |
|
|
1694 | { |
|
|
1695 | dREQ; |
|
|
1696 | |
|
|
1697 | req->sv1 = newSVsv (fh_or_path); |
|
|
1698 | req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
|
|
1699 | |
|
|
1700 | if (SvPOK (fh_or_path)) |
|
|
1701 | { |
|
|
1702 | req->type = REQ_TRUNCATE; |
|
|
1703 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1704 | } |
|
|
1705 | else |
|
|
1706 | { |
|
|
1707 | req->type = REQ_FTRUNCATE; |
|
|
1708 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1709 | } |
|
|
1710 | |
|
|
1711 | REQ_SEND; |
|
|
1712 | } |
|
|
1713 | |
|
|
1714 | void |
|
|
1715 | aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) |
|
|
1716 | PPCODE: |
|
|
1717 | { |
|
|
1718 | dREQ; |
|
|
1719 | |
|
|
1720 | req->mode = mode; |
|
|
1721 | req->sv1 = newSVsv (fh_or_path); |
|
|
1722 | |
|
|
1723 | if (SvPOK (fh_or_path)) |
|
|
1724 | { |
|
|
1725 | req->type = REQ_CHMOD; |
|
|
1726 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1727 | } |
|
|
1728 | else |
|
|
1729 | { |
|
|
1730 | req->type = REQ_FCHMOD; |
|
|
1731 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1732 | } |
|
|
1733 | |
|
|
1734 | REQ_SEND; |
|
|
1735 | } |
|
|
1736 | |
|
|
1737 | void |
|
|
1738 | aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) |
|
|
1739 | PPCODE: |
|
|
1740 | { |
|
|
1741 | dREQ; |
|
|
1742 | |
|
|
1743 | req->int2 = SvOK (uid) ? SvIV (uid) : -1; |
|
|
1744 | req->int3 = SvOK (gid) ? SvIV (gid) : -1; |
|
|
1745 | req->sv1 = newSVsv (fh_or_path); |
|
|
1746 | |
|
|
1747 | if (SvPOK (fh_or_path)) |
|
|
1748 | { |
|
|
1749 | req->type = REQ_CHOWN; |
|
|
1750 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1751 | } |
|
|
1752 | else |
|
|
1753 | { |
|
|
1754 | req->type = REQ_FCHOWN; |
|
|
1755 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
1756 | } |
|
|
1757 | |
|
|
1758 | REQ_SEND; |
|
|
1759 | } |
|
|
1760 | |
|
|
1761 | void |
560 | aio_unlink(pathname,callback=&PL_sv_undef) |
1762 | aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) |
561 | SV * pathname |
1763 | ALIAS: |
562 | SV * callback |
1764 | aio_unlink = REQ_UNLINK |
|
|
1765 | aio_rmdir = REQ_RMDIR |
|
|
1766 | aio_readdir = REQ_READDIR |
|
|
1767 | PPCODE: |
|
|
1768 | { |
|
|
1769 | dREQ; |
|
|
1770 | |
|
|
1771 | req->type = ix; |
|
|
1772 | req->sv1 = newSVsv (pathname); |
|
|
1773 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1774 | |
|
|
1775 | REQ_SEND; |
|
|
1776 | } |
|
|
1777 | |
|
|
1778 | void |
|
|
1779 | aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) |
|
|
1780 | PPCODE: |
|
|
1781 | { |
|
|
1782 | dREQ; |
|
|
1783 | |
|
|
1784 | req->type = REQ_MKDIR; |
|
|
1785 | req->sv1 = newSVsv (pathname); |
|
|
1786 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1787 | req->mode = mode; |
|
|
1788 | |
|
|
1789 | REQ_SEND; |
|
|
1790 | } |
|
|
1791 | |
|
|
1792 | void |
|
|
1793 | aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) |
|
|
1794 | ALIAS: |
|
|
1795 | aio_link = REQ_LINK |
|
|
1796 | aio_symlink = REQ_SYMLINK |
|
|
1797 | aio_rename = REQ_RENAME |
|
|
1798 | PPCODE: |
|
|
1799 | { |
|
|
1800 | dREQ; |
|
|
1801 | |
|
|
1802 | req->type = ix; |
|
|
1803 | req->sv2 = newSVsv (oldpath); |
|
|
1804 | req->ptr2 = SvPVbyte_nolen (req->sv2); |
|
|
1805 | req->sv1 = newSVsv (newpath); |
|
|
1806 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1807 | |
|
|
1808 | REQ_SEND; |
|
|
1809 | } |
|
|
1810 | |
|
|
1811 | void |
|
|
1812 | aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) |
|
|
1813 | PPCODE: |
|
|
1814 | { |
|
|
1815 | dREQ; |
|
|
1816 | |
|
|
1817 | req->type = REQ_MKNOD; |
|
|
1818 | req->sv1 = newSVsv (pathname); |
|
|
1819 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1820 | req->mode = (mode_t)mode; |
|
|
1821 | req->offs = dev; |
|
|
1822 | |
|
|
1823 | REQ_SEND; |
|
|
1824 | } |
|
|
1825 | |
|
|
1826 | void |
|
|
1827 | aio_busy (double delay, SV *callback=&PL_sv_undef) |
|
|
1828 | PPCODE: |
|
|
1829 | { |
|
|
1830 | dREQ; |
|
|
1831 | |
|
|
1832 | req->type = REQ_BUSY; |
|
|
1833 | req->nv1 = delay < 0. ? 0. : delay; |
|
|
1834 | |
|
|
1835 | REQ_SEND; |
|
|
1836 | } |
|
|
1837 | |
|
|
1838 | void |
|
|
1839 | aio_group (SV *callback=&PL_sv_undef) |
|
|
1840 | PROTOTYPE: ;$ |
|
|
1841 | PPCODE: |
|
|
1842 | { |
|
|
1843 | dREQ; |
|
|
1844 | |
|
|
1845 | req->type = REQ_GROUP; |
|
|
1846 | |
|
|
1847 | req_send (req); |
|
|
1848 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1849 | } |
|
|
1850 | |
|
|
1851 | void |
|
|
1852 | aio_nop (SV *callback=&PL_sv_undef) |
|
|
1853 | PPCODE: |
|
|
1854 | { |
|
|
1855 | dREQ; |
|
|
1856 | |
|
|
1857 | req->type = REQ_NOP; |
|
|
1858 | |
|
|
1859 | REQ_SEND; |
|
|
1860 | } |
|
|
1861 | |
|
|
1862 | int |
|
|
1863 | aioreq_pri (int pri = 0) |
|
|
1864 | PROTOTYPE: ;$ |
563 | CODE: |
1865 | CODE: |
564 | { |
1866 | RETVAL = next_pri - PRI_BIAS; |
565 | aio_req req; |
1867 | if (items > 0) |
566 | |
1868 | { |
567 | Newz (0, req, 1, aio_cb); |
1869 | if (pri < PRI_MIN) pri = PRI_MIN; |
568 | |
1870 | if (pri > PRI_MAX) pri = PRI_MAX; |
569 | if (!req) |
1871 | next_pri = pri + PRI_BIAS; |
570 | croak ("out of memory during aio_req allocation"); |
1872 | } |
571 | |
1873 | OUTPUT: |
572 | req->type = REQ_UNLINK; |
1874 | RETVAL |
573 | req->data = newSVsv (pathname); |
|
|
574 | req->dataptr = SvPV_nolen (req->data); |
|
|
575 | req->callback = SvREFCNT_inc (callback); |
|
|
576 | |
|
|
577 | send_req (req); |
|
|
578 | } |
|
|
579 | |
1875 | |
580 | void |
1876 | void |
|
|
1877 | aioreq_nice (int nice = 0) |
|
|
1878 | CODE: |
|
|
1879 | nice = next_pri - nice; |
|
|
1880 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1881 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1882 | next_pri = nice + PRI_BIAS; |
|
|
1883 | |
|
|
1884 | void |
581 | flush() |
1885 | flush () |
582 | PROTOTYPE: |
1886 | PROTOTYPE: |
583 | CODE: |
1887 | CODE: |
584 | while (nreqs) |
1888 | while (nreqs) |
585 | { |
1889 | { |
586 | poll_wait (); |
1890 | poll_wait (); |
587 | poll_cb (); |
1891 | poll_cb (); |
588 | } |
1892 | } |
589 | |
1893 | |
590 | void |
1894 | int |
591 | poll() |
1895 | poll() |
592 | PROTOTYPE: |
1896 | PROTOTYPE: |
593 | CODE: |
1897 | CODE: |
594 | if (nreqs) |
|
|
595 | { |
|
|
596 | poll_wait (); |
1898 | poll_wait (); |
597 | poll_cb (); |
1899 | RETVAL = poll_cb (); |
598 | } |
1900 | OUTPUT: |
|
|
1901 | RETVAL |
599 | |
1902 | |
600 | int |
1903 | int |
601 | poll_fileno() |
1904 | poll_fileno() |
602 | PROTOTYPE: |
1905 | PROTOTYPE: |
603 | CODE: |
1906 | CODE: |
… | |
… | |
615 | |
1918 | |
616 | void |
1919 | void |
617 | poll_wait() |
1920 | poll_wait() |
618 | PROTOTYPE: |
1921 | PROTOTYPE: |
619 | CODE: |
1922 | CODE: |
620 | if (nreqs) |
|
|
621 | poll_wait (); |
1923 | poll_wait (); |
|
|
1924 | |
|
|
1925 | void |
|
|
1926 | setsig (int signum = SIGIO) |
|
|
1927 | PROTOTYPE: ;$ |
|
|
1928 | CODE: |
|
|
1929 | { |
|
|
1930 | if (block_sig_level) |
|
|
1931 | croak ("cannot call IO::AIO::setsig from within aio_block/callback"); |
|
|
1932 | |
|
|
1933 | X_LOCK (reslock); |
|
|
1934 | main_tid = pthread_self (); |
|
|
1935 | main_sig = signum; |
|
|
1936 | X_UNLOCK (reslock); |
|
|
1937 | |
|
|
1938 | if (main_sig && npending) |
|
|
1939 | pthread_kill (main_tid, main_sig); |
|
|
1940 | } |
|
|
1941 | |
|
|
1942 | void |
|
|
1943 | aio_block (SV *cb) |
|
|
1944 | PROTOTYPE: & |
|
|
1945 | PPCODE: |
|
|
1946 | { |
|
|
1947 | int count; |
|
|
1948 | |
|
|
1949 | block_sig (); |
|
|
1950 | PUSHMARK (SP); |
|
|
1951 | PUTBACK; |
|
|
1952 | count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); |
|
|
1953 | SPAGAIN; |
|
|
1954 | unblock_sig (); |
|
|
1955 | |
|
|
1956 | if (SvTRUE (ERRSV)) |
|
|
1957 | croak (0); |
|
|
1958 | |
|
|
1959 | XSRETURN (count); |
|
|
1960 | } |
622 | |
1961 | |
623 | int |
1962 | int |
624 | nreqs() |
1963 | nreqs() |
625 | PROTOTYPE: |
1964 | PROTOTYPE: |
626 | CODE: |
1965 | CODE: |
627 | RETVAL = nreqs; |
1966 | RETVAL = nreqs; |
628 | OUTPUT: |
1967 | OUTPUT: |
629 | RETVAL |
1968 | RETVAL |
630 | |
1969 | |
|
|
1970 | int |
|
|
1971 | nready() |
|
|
1972 | PROTOTYPE: |
|
|
1973 | CODE: |
|
|
1974 | RETVAL = get_nready (); |
|
|
1975 | OUTPUT: |
|
|
1976 | RETVAL |
|
|
1977 | |
|
|
1978 | int |
|
|
1979 | npending() |
|
|
1980 | PROTOTYPE: |
|
|
1981 | CODE: |
|
|
1982 | RETVAL = get_npending (); |
|
|
1983 | OUTPUT: |
|
|
1984 | RETVAL |
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1985 | |
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1986 | int |
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1987 | nthreads() |
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1988 | PROTOTYPE: |
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1989 | CODE: |
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1990 | if (WORDACCESS_UNSAFE) X_LOCK (wrklock); |
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1991 | RETVAL = started; |
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1992 | if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock); |
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1993 | OUTPUT: |
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1994 | RETVAL |
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1995 | |
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1996 | PROTOTYPES: DISABLE |
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1997 | |
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1998 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
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1999 | |
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2000 | void |
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2001 | cancel (aio_req_ornot req) |
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2002 | CODE: |
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2003 | req_cancel (req); |
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2004 | |
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2005 | void |
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2006 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
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2007 | CODE: |
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2008 | SvREFCNT_dec (req->callback); |
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2009 | req->callback = newSVsv (callback); |
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2010 | |
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2011 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
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2012 | |
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2013 | void |
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2014 | add (aio_req grp, ...) |
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2015 | PPCODE: |
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2016 | { |
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2017 | int i; |
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2018 | aio_req req; |
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2019 | |
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2020 | if (main_sig && !block_sig_level) |
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2021 | croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use"); |
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2022 | |
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2023 | if (grp->int1 == 2) |
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2024 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
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2025 | |
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2026 | for (i = 1; i < items; ++i ) |
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2027 | { |
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2028 | if (GIMME_V != G_VOID) |
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2029 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
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2030 | |
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2031 | req = SvAIO_REQ (ST (i)); |
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2032 | |
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2033 | if (req) |
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2034 | { |
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2035 | ++grp->size; |
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2036 | req->grp = grp; |
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2037 | |
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2038 | req->grp_prev = 0; |
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2039 | req->grp_next = grp->grp_first; |
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2040 | |
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2041 | if (grp->grp_first) |
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2042 | grp->grp_first->grp_prev = req; |
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2043 | |
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2044 | grp->grp_first = req; |
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2045 | } |
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2046 | } |
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2047 | } |
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2048 | |
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2049 | void |
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2050 | cancel_subs (aio_req_ornot req) |
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2051 | CODE: |
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2052 | req_cancel_subs (req); |
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2053 | |
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2054 | void |
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2055 | result (aio_req grp, ...) |
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2056 | CODE: |
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2057 | { |
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2058 | int i; |
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2059 | AV *av; |
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2060 | |
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2061 | grp->errorno = errno; |
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2062 | |
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2063 | av = newAV (); |
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2064 | |
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2065 | for (i = 1; i < items; ++i ) |
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2066 | av_push (av, newSVsv (ST (i))); |
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2067 | |
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2068 | SvREFCNT_dec (grp->sv1); |
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2069 | grp->sv1 = (SV *)av; |
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2070 | } |
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2071 | |
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2072 | void |
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2073 | errno (aio_req grp, int errorno = errno) |
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2074 | CODE: |
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2075 | grp->errorno = errorno; |
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2076 | |
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2077 | void |
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2078 | limit (aio_req grp, int limit) |
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2079 | CODE: |
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2080 | grp->int2 = limit; |
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2081 | aio_grp_feed (grp); |
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2082 | |
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2083 | void |
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2084 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
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2085 | CODE: |
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2086 | { |
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2087 | SvREFCNT_dec (grp->sv2); |
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2088 | grp->sv2 = newSVsv (callback); |
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2089 | |
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2090 | if (grp->int2 <= 0) |
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2091 | grp->int2 = 2; |
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2092 | |
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2093 | aio_grp_feed (grp); |
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2094 | } |
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2095 | |