#include "libeio/xthread.h" #include #include "EXTERN.h" #include "perl.h" #include "XSUB.h" #include "schmorp.h" #include #include #include #include #include #include #include #include #if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES # include #endif #if __linux__ # include # ifdef FS_IOC_FIEMAP # include # include # define HAVE_FIEMAP 1 # endif #endif /* perl namespace pollution */ #undef VERSION /* perl stupidly overrides readdir and maybe others */ /* with thread-unsafe versions, imagine that :( */ #undef readdir #undef opendir #undef closedir #ifdef _WIN32 // perl overrides all those nice libc functions #undef malloc #undef free #undef open #undef read #undef write #undef send #undef recv #undef stat #undef lstat #undef fstat #undef truncate #undef ftruncate #undef open #undef link #undef close #undef unlink #undef mkdir #undef rmdir #undef rename #undef lseek #undef opendir #undef readdir #undef closedir #undef chmod #undef fchmod #undef dup #undef dup2 #undef abort #undef pipe #define EIO_STRUCT_STAT struct _stati64 #define EIO_STRUCT_STATI64 #else #include #include #include #include #include #define EIO_STRUCT_STAT Stat_t #endif /*****************************************************************************/ #if __GNUC__ >= 3 # define expect(expr,value) __builtin_expect ((expr),(value)) #else # define expect(expr,value) (expr) #endif #define expect_false(expr) expect ((expr) != 0, 0) #define expect_true(expr) expect ((expr) != 0, 1) /*****************************************************************************/ typedef SV SV8; /* byte-sv, used for argument-checking */ typedef int aio_rfd; /* read file desriptor */ typedef int aio_wfd; /* write file descriptor */ static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash; #define EIO_REQ_MEMBERS \ SV *callback; \ SV *sv1, *sv2; \ SV *sv3, *sv4; \ STRLEN stroffset; \ SV *self; #define EIO_NO_WRAPPERS 1 #include "libeio/config.h" #include "libeio/eio.h" static int req_invoke (eio_req *req); #define EIO_FINISH(req) req_invoke (req) static void req_destroy (eio_req *grp); #define EIO_DESTROY(req) req_destroy (req) #include "libeio/eio.c" #if !HAVE_POSIX_FADVISE # define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */ #endif #if !HAVE_POSIX_MADVISE # define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */ #endif #ifndef MAP_ANONYMOUS # ifdef MAP_ANON # define MAP_ANONYMOUS MAP_ANON # else # define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */ # endif #endif /* defines all sorts of constants to 0 unless they are already defined */ #include "def0.h" #ifndef makedev # define makedev(maj,min) (((maj) << 8) | (min)) #endif #ifndef major # define major(dev) ((dev) >> 8) #endif #ifndef minor # define minor(dev) ((dev) & 0xff) #endif #ifndef PAGESIZE # define PAGESIZE sysconf (_SC_PAGESIZE) #endif /*****************************************************************************/ static void fiemap (eio_req *req) { req->result = -1; #if HAVE_FIEMAP /* assume some c99 */ struct fiemap *fiemap = 0; size_t end_offset; int count = req->int3; req->flags |= EIO_FLAG_PTR1_FREE; /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */ /* increase in 3.5kb steps */ if (count < 0) count = 8; fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count); errno = ENOMEM; if (!fiemap) return; req->ptr1 = fiemap; fiemap->fm_start = req->offs; fiemap->fm_length = req->size; fiemap->fm_flags = req->int2; fiemap->fm_extent_count = count; if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0) return; if (req->int3 >= 0 /* not autosizing */ || !fiemap->fm_mapped_extents /* no more extents */ || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */) goto done; /* else we have to loop - * it would be tempting (atcually I tried that first) to just query the * number of extents needed, but linux often feels like not returning all * extents, without telling us it left any out. this complicates * this quite a bit. */ end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start); for (;;) { /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */ char scratch[3072]; struct fiemap *incmap = (struct fiemap *)scratch; incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length; incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start); incmap->fm_flags = fiemap->fm_flags; incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent); if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0) return; count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents; fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count); errno = ENOMEM; if (!fiemap) return; req->ptr1 = fiemap; for (count = 0; count < incmap->fm_mapped_extents; ++count) { struct fiemap_extent *e = incmap->fm_extents + count; if (e->fe_logical + e->fe_length >= end_offset) goto done; fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e; if (e->fe_flags & FIEMAP_EXTENT_LAST) goto done; } } done: req->result = 0; #else errno = ENOSYS; #endif } /*****************************************************************************/ enum { FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ }; typedef eio_req *aio_req; typedef eio_req *aio_req_ornot; typedef eio_wd aio_wd; static SV *on_next_submit; static int next_pri = EIO_PRI_DEFAULT; static int max_outstanding; static s_epipe respipe; static void req_destroy (aio_req req); static void req_cancel (aio_req req); static void want_poll (void) { /* write a dummy byte to the pipe so fh becomes ready */ s_epipe_signal (&respipe); } static void done_poll (void) { /* read any signals sent by the worker threads */ s_epipe_drain (&respipe); } /* must be called at most once */ static SV * req_sv (aio_req req, HV *stash) { if (!req->self) { req->self = (SV *)newHV (); sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); } return sv_2mortal (sv_bless (newRV_inc (req->self), stash)); } static SV * newSVaio_wd (aio_wd wd) { return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash); } static aio_req SvAIO_REQ (SV *sv) { MAGIC *mg; if (!SvROK (sv) /* for speed reasons, we do not verify that SvROK actually has a stash ptr */ || (SvSTASH (SvRV (sv)) != aio_grp_stash && SvSTASH (SvRV (sv)) != aio_req_stash && !sv_derived_from (sv, "IO::AIO::REQ"))) croak ("object of class IO::AIO::REQ expected"); mg = mg_find (SvRV (sv), PERL_MAGIC_ext); return mg ? (aio_req)mg->mg_ptr : 0; } static aio_wd SvAIO_WD (SV *sv) { if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVMG || SvSTASH (SvRV (sv)) != aio_wd_stash) croak ("IO::AIO: expected a working directory object as returned by aio_wd"); return (aio_wd)(long)SvIVX (SvRV (sv)); } static void aio_grp_feed (aio_req grp) { if (grp->sv2 && SvOK (grp->sv2)) { dSP; ENTER; SAVETMPS; PUSHMARK (SP); XPUSHs (req_sv (grp, aio_grp_stash)); PUTBACK; call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); SPAGAIN; FREETMPS; LEAVE; } } static void req_submit (eio_req *req) { eio_submit (req); if (expect_false (on_next_submit)) { dSP; SV *cb = sv_2mortal (on_next_submit); on_next_submit = 0; PUSHMARK (SP); PUTBACK; call_sv (cb, G_DISCARD | G_EVAL); } } static int req_invoke (eio_req *req) { if (req->flags & FLAG_SV2_RO_OFF) SvREADONLY_off (req->sv2); if (!EIO_CANCELLED (req) && req->callback) { dSP; static SV *sv_result_cache; /* caches the result integer SV */ SV *sv_result; ENTER; SAVETMPS; PUSHMARK (SP); EXTEND (SP, 1); /* do not recreate the result IV from scratch each time */ if (expect_true (sv_result_cache)) { sv_result = sv_result_cache; sv_result_cache = 0; SvIV_set (sv_result, req->result); SvIOK_only (sv_result); } else { sv_result = newSViv (req->result); SvREADONLY_on (sv_result); } switch (req->type) { case EIO_WD_OPEN: PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd))); break; case EIO_READDIR: { SV *rv = &PL_sv_undef; if (req->result >= 0) { int i; char *names = (char *)req->ptr2; eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */ AV *av = newAV (); av_extend (av, req->result - 1); for (i = 0; i < req->result; ++i) { if (req->int1 & EIO_READDIR_DENTS) { SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen); if (req->int1 & EIO_READDIR_CUSTOM2) { static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */ AV *avent = newAV (); av_extend (avent, 2); if (!sv_type [ent->type]) { sv_type [ent->type] = newSViv (ent->type); SvREADONLY_on (sv_type [ent->type]); } av_store (avent, 0, namesv); av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type])); av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode)); av_store (av, i, newRV_noinc ((SV *)avent)); } else av_store (av, i, namesv); ++ent; } else { SV *name = newSVpv (names, 0); av_store (av, i, name); names += SvCUR (name) + 1; } } rv = sv_2mortal (newRV_noinc ((SV *)av)); } PUSHs (rv); if (req->int1 & EIO_READDIR_CUSTOM1) XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2)))); } break; case EIO_OPEN: { /* convert fd to fh */ SV *fh = &PL_sv_undef; if (req->result >= 0) { GV *gv = (GV *)sv_newmortal (); int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); char sym [64]; int symlen; symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result); gv_init (gv, aio_stash, sym, symlen, 0); symlen = snprintf ( sym, sizeof (sym), "%s&=%d", flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", (int)req->result ); if (do_open (gv, sym, symlen, 0, 0, 0, 0)) fh = (SV *)gv; } PUSHs (fh); } break; case EIO_STATVFS: case EIO_FSTATVFS: { SV *rv = &PL_sv_undef; #ifndef _WIN32 if (req->result >= 0) { EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req); HV *hv = newHV (); /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom * chooses to make it a struct. */ unsigned long fsid = 0; memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid)); rv = sv_2mortal (newRV_noinc ((SV *)hv)); hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0); hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0); hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0); hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0); hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0); hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0); hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0); hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0); hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0); hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0); hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0); } #endif PUSHs (rv); } break; case EIO_GROUP: req->int1 = 2; /* mark group as finished */ if (req->sv1) { int i; AV *av = (AV *)req->sv1; EXTEND (SP, AvFILL (av) + 1); for (i = 0; i <= AvFILL (av); ++i) PUSHs (*av_fetch (av, i, 0)); } break; case EIO_NOP: case EIO_BUSY: break; case EIO_READLINK: case EIO_REALPATH: if (req->result > 0) PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result))); break; case EIO_STAT: case EIO_LSTAT: case EIO_FSTAT: PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; if (!(PL_laststatval = req->result)) /* if compilation fails here then perl's Stat_t is not struct _stati64 */ PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); PUSHs (sv_result); break; case EIO_SEEK: PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs))); break; case EIO_READ: { SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); *SvEND (req->sv2) = 0; SvPOK_only (req->sv2); SvSETMAGIC (req->sv2); PUSHs (sv_result); } break; case EIO_CUSTOM: if (req->feed == fiemap) { #if HAVE_FIEMAP if (!req->result) { struct fiemap *fiemap = (struct fiemap *)req->ptr1; if (fiemap->fm_extent_count) { AV *av = newAV (); int i; while (fiemap->fm_mapped_extents) { struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents]; AV *ext_av = newAV (); av_store (ext_av, 3, newSVuv (extent->fe_flags)); av_store (ext_av, 2, newSVval64 (extent->fe_length)); av_store (ext_av, 1, newSVval64 (extent->fe_physical)); av_store (ext_av, 0, newSVval64 (extent->fe_logical)); av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av)); } PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); } else { SvIV_set (sv_result, fiemap->fm_mapped_extents); PUSHs (sv_result); } } #endif } else PUSHs (sv_result); break; case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */ if (req->result > 0) SvIV_set (sv_result, 0); /* FALLTHROUGH */ default: PUSHs (sv_result); break; } errno = req->errorno; PUTBACK; call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); SPAGAIN; if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache)) SvREFCNT_dec (sv_result); else sv_result_cache = sv_result; FREETMPS; LEAVE; PUTBACK; } return !!SvTRUE (ERRSV); } static void req_destroy (aio_req req) { if (req->self) { sv_unmagic (req->self, PERL_MAGIC_ext); SvREFCNT_dec (req->self); } SvREFCNT_dec (req->sv1); SvREFCNT_dec (req->sv2); SvREFCNT_dec (req->sv3); SvREFCNT_dec (req->sv4); SvREFCNT_dec (req->callback); free (req); } static void req_cancel_subs (aio_req grp) { if (grp->type != EIO_GROUP) return; SvREFCNT_dec (grp->sv2); grp->sv2 = 0; eio_grp_cancel (grp); } static void ecb_cold create_respipe (void) { if (s_epipe_renew (&respipe)) croak ("IO::AIO: unable to initialize result pipe"); } static void poll_wait (void) { while (eio_nreqs ()) { int size; X_LOCK (reslock); size = res_queue.size; X_UNLOCK (reslock); if (size) return; etp_maybe_start_thread (); s_epipe_wait (&respipe); } } static int poll_cb (void) { for (;;) { int res = eio_poll (); if (res > 0) croak (0); if (!max_outstanding || max_outstanding > eio_nreqs ()) return res; poll_wait (); } } static void ecb_cold reinit (void) { create_respipe (); if (eio_init (want_poll, done_poll) < 0) croak ("IO::AIO: unable to initialise eio library"); } /*****************************************************************************/ #if !_POSIX_MAPPED_FILES # define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS () # define munmap(addr,length) EIO_ENOSYS () #endif #if !_POSIX_MEMORY_PROTECTION # define mprotect(addr,len,prot) EIO_ENOSYS () # define PROT_NONE 0 # define PROT_WRITE 0 # define MAP_PRIVATE 0 # define MAP_SHARED 0 # define MAP_FIXED 0 #endif #define MMAP_MAGIC PERL_MAGIC_ext static int ecb_cold mmap_free (pTHX_ SV *sv, MAGIC *mg) { int old_errno = errno; munmap (mg->mg_ptr, (size_t)mg->mg_obj); errno = old_errno; mg->mg_obj = 0; /* just in case */ SvREADONLY_off (sv); if (SvPVX (sv) != mg->mg_ptr) croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected"); SvCUR_set (sv, 0); SvPVX (sv) = 0; SvOK_off (sv); return 0; } static MGVTBL mmap_vtbl = { 0, 0, 0, 0, mmap_free }; /*****************************************************************************/ static SV * get_cb (SV *cb_sv) { SvGETMAGIC (cb_sv); return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0; } static aio_req ecb_noinline dreq (SV *callback) { SV *cb_cv; aio_req req; int req_pri = next_pri; next_pri = EIO_PRI_DEFAULT; cb_cv = get_cb (callback); req = calloc (sizeof (*req), 1); if (!req) croak ("out of memory during eio_req allocation"); req->callback = SvREFCNT_inc (cb_cv); req->pri = req_pri; return req; } #define dREQ \ aio_req req = dreq (callback); \ #define REQ_SEND \ PUTBACK; \ req_submit (req); \ SPAGAIN; \ \ if (GIMME_V != G_VOID) \ XPUSHs (req_sv (req, aio_req_stash)); ecb_inline void req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr) { if (expect_false (SvROK (path))) { SV *rv = SvRV (path); SV *wdob; if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1) { path = AvARRAY (rv)[1]; wdob = AvARRAY (rv)[0]; if (SvOK (wdob)) { *wd = SvAIO_WD (wdob); *wdsv = SvREFCNT_inc_NN (SvRV (wdob)); } else *wd = EIO_INVALID_WD; } else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash) { *wd = (aio_wd)(long)SvIVX (rv); *wdsv = SvREFCNT_inc_NN (rv); *ptr = "."; return; /* path set to "." */ } else croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair"); } *pathsv = newSVsv (path); *ptr = SvPVbyte_nolen (*pathsv); } static void ecb_noinline req_set_path1 (aio_req req, SV *path) { req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1); } static void ecb_noinline req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path) { SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path; switch (SvTYPE (rv)) { case SVt_PVIO: case SVt_PVLV: case SVt_PVGV: req->type = type_fh; req->sv1 = newSVsv (fh_or_path); req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); break; default: req->type = type_path; req_set_path1 (req, fh_or_path); break; } } XS(boot_IO__AIO) ecb_cold; MODULE = IO::AIO PACKAGE = IO::AIO PROTOTYPES: ENABLE BOOT: { static const struct { const char *name; IV iv; } *civ, const_iv[] = { # define const_niv(name, value) { # name, (IV) value }, # define const_iv(name) { # name, (IV) name }, # define const_eio(name) { # name, (IV) EIO_ ## name }, /* you have to re-run ./gendef0 after adding/Removing any constants here */ const_iv (ENOSYS) const_iv (EXDEV) const_iv (EBADR) const_iv (O_RDONLY) const_iv (O_WRONLY) const_iv (O_RDWR) const_iv (O_CREAT) const_iv (O_TRUNC) const_iv (O_EXCL) const_iv (O_APPEND) const_iv (O_ASYNC) const_iv (O_DIRECT) const_iv (O_NOATIME) const_iv (O_CLOEXEC) const_iv (O_NOCTTY) const_iv (O_NOFOLLOW) const_iv (O_NONBLOCK) const_iv (O_EXEC) const_iv (O_SEARCH) const_iv (O_DIRECTORY) const_iv (O_DSYNC) const_iv (O_RSYNC) const_iv (O_SYNC) const_iv (O_TTY_INIT) const_iv (S_IFIFO) const_iv (S_IFCHR) const_iv (S_IFBLK) const_iv (S_IFLNK) const_iv (S_IFREG) const_iv (S_IFDIR) const_iv (S_IFWHT) const_iv (S_IFSOCK) const_iv (S_IFMT) const_niv (FADV_NORMAL , POSIX_FADV_NORMAL) const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) const_niv (FADV_RANDOM , POSIX_FADV_RANDOM) const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE) const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED) const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED) const_niv (MADV_NORMAL , POSIX_MADV_NORMAL) const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL) const_niv (MADV_RANDOM , POSIX_MADV_RANDOM) const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED) const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED) const_iv (ST_RDONLY) const_iv (ST_NOSUID) const_iv (ST_NODEV) const_iv (ST_NOEXEC) const_iv (ST_SYNCHRONOUS) const_iv (ST_MANDLOCK) const_iv (ST_WRITE) const_iv (ST_APPEND) const_iv (ST_IMMUTABLE) const_iv (ST_NOATIME) const_iv (ST_NODIRATIME) const_iv (ST_RELATIME) const_iv (PROT_NONE) const_iv (PROT_EXEC) const_iv (PROT_READ) const_iv (PROT_WRITE) /*const_iv (MAP_FIXED)*/ const_iv (MAP_PRIVATE) const_iv (MAP_SHARED) const_iv (MAP_ANONYMOUS) /* linuxish */ const_iv (MAP_HUGETLB) const_iv (MAP_LOCKED) const_iv (MAP_NORESERVE) const_iv (MAP_POPULATE) const_iv (MAP_NONBLOCK) const_iv (FIEMAP_FLAG_SYNC) const_iv (FIEMAP_FLAG_XATTR) const_iv (FIEMAP_FLAGS_COMPAT) const_iv (FIEMAP_EXTENT_LAST) const_iv (FIEMAP_EXTENT_UNKNOWN) const_iv (FIEMAP_EXTENT_DELALLOC) const_iv (FIEMAP_EXTENT_ENCODED) const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED) const_iv (FIEMAP_EXTENT_NOT_ALIGNED) const_iv (FIEMAP_EXTENT_DATA_INLINE) const_iv (FIEMAP_EXTENT_DATA_TAIL) const_iv (FIEMAP_EXTENT_UNWRITTEN) const_iv (FIEMAP_EXTENT_MERGED) const_iv (FIEMAP_EXTENT_SHARED) const_iv (SPLICE_F_MOVE) const_iv (SPLICE_F_NONBLOCK) const_iv (SPLICE_F_MORE) const_iv (SPLICE_F_GIFT) const_iv (SEEK_DATA) const_iv (SEEK_HOLE) /* libeio constants */ const_eio (SEEK_SET) const_eio (SEEK_CUR) const_eio (SEEK_END) const_eio (MCL_FUTURE) const_eio (MCL_CURRENT) const_eio (MS_ASYNC) const_eio (MS_INVALIDATE) const_eio (MS_SYNC) const_eio (MT_MODIFY) const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) const_eio (SYNC_FILE_RANGE_WRITE) const_eio (SYNC_FILE_RANGE_WAIT_AFTER) const_eio (FALLOC_FL_KEEP_SIZE) const_eio (FALLOC_FL_PUNCH_HOLE) const_eio (READDIR_DENTS) const_eio (READDIR_DIRS_FIRST) const_eio (READDIR_STAT_ORDER) const_eio (READDIR_FOUND_UNKNOWN) const_eio (DT_UNKNOWN) const_eio (DT_FIFO) const_eio (DT_CHR) const_eio (DT_DIR) const_eio (DT_BLK) const_eio (DT_REG) const_eio (DT_LNK) const_eio (DT_SOCK) const_eio (DT_WHT) }; aio_stash = gv_stashpv ("IO::AIO" , 1); aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1); aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1); aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1); for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--) newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv)); newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE)); reinit (); } void reinit () PROTOTYPE: void max_poll_reqs (unsigned int nreqs) PROTOTYPE: $ CODE: eio_set_max_poll_reqs (nreqs); void max_poll_time (double nseconds) PROTOTYPE: $ CODE: eio_set_max_poll_time (nseconds); void min_parallel (unsigned int nthreads) PROTOTYPE: $ CODE: eio_set_min_parallel (nthreads); void max_parallel (unsigned int nthreads) PROTOTYPE: $ CODE: eio_set_max_parallel (nthreads); void max_idle (unsigned int nthreads) PROTOTYPE: $ CODE: eio_set_max_idle (nthreads); void idle_timeout (unsigned int seconds) PROTOTYPE: $ CODE: eio_set_idle_timeout (seconds); void max_outstanding (unsigned int maxreqs) PROTOTYPE: $ CODE: max_outstanding = maxreqs; void aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef) PPCODE: { dREQ; req->type = EIO_WD_OPEN; req_set_path1 (req, pathname); REQ_SEND; } void aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) PPCODE: { dREQ; req->type = EIO_OPEN; req_set_path1 (req, pathname); req->int1 = flags; req->int2 = mode; REQ_SEND; } void aio_fsync (SV *fh, SV *callback=&PL_sv_undef) ALIAS: aio_fsync = EIO_FSYNC aio_fdatasync = EIO_FDATASYNC aio_syncfs = EIO_SYNCFS PPCODE: { int fd = s_fileno_croak (fh, 0); dREQ; req->type = ix; req->sv1 = newSVsv (fh); req->int1 = fd; REQ_SEND; } void aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) PPCODE: { int fd = s_fileno_croak (fh, 0); dREQ; req->type = EIO_SYNC_FILE_RANGE; req->sv1 = newSVsv (fh); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; REQ_SEND; } void aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef) PPCODE: { int fd = s_fileno_croak (fh, 0); dREQ; req->type = EIO_FALLOCATE; req->sv1 = newSVsv (fh); req->int1 = fd; req->int2 = mode; req->offs = offset; req->size = len; REQ_SEND; } void aio_close (SV *fh, SV *callback=&PL_sv_undef) PPCODE: { static int close_fd = -1; /* dummy fd to close fds via dup2 */ int fd = s_fileno_croak (fh, 0); dREQ; if (expect_false (close_fd < 0)) { int pipefd [2]; if ( #ifdef _WIN32 _pipe (pipefd, 1, _O_BINARY) < 0 #else pipe (pipefd) < 0 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0 #endif || close (pipefd [1]) < 0 ) abort (); /*D*/ close_fd = pipefd [0]; } req->type = EIO_DUP2; req->int1 = close_fd; req->sv2 = newSVsv (fh); req->int2 = fd; REQ_SEND; } void aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef) PPCODE: { int fd = s_fileno_croak (fh, 0); dREQ; req->type = EIO_SEEK; req->sv1 = newSVsv (fh); req->int1 = fd; req->offs = SvVAL64 (offset); req->int2 = whence; REQ_SEND; } void aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) ALIAS: aio_read = EIO_READ aio_write = EIO_WRITE PPCODE: { STRLEN svlen; int fd = s_fileno_croak (fh, ix == EIO_WRITE); char *svptr = SvPVbyte (data, svlen); UV len = SvUV (length); if (dataoffset < 0) dataoffset += svlen; if (dataoffset < 0 || dataoffset > svlen) croak ("dataoffset outside of data scalar"); if (ix == EIO_WRITE) { /* write: check length and adjust. */ if (!SvOK (length) || len + dataoffset > svlen) len = svlen - dataoffset; } else { /* read: check type and grow scalar as necessary */ SvUPGRADE (data, SVt_PV); if (SvLEN (data) >= SvCUR (data)) svptr = SvGROW (data, len + dataoffset + 1); else if (SvCUR (data) < len + dataoffset) croak ("length + dataoffset outside of scalar, and cannot grow"); } { dREQ; req->type = ix; req->sv1 = newSVsv (fh); req->int1 = fd; req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; req->size = len; req->sv2 = SvREFCNT_inc (data); req->ptr2 = (char *)svptr + dataoffset; req->stroffset = dataoffset; if (!SvREADONLY (data)) { SvREADONLY_on (data); req->flags |= FLAG_SV2_RO_OFF; } REQ_SEND; } } void aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef) ALIAS: aio_readlink = EIO_READLINK aio_realpath = EIO_REALPATH PPCODE: { dREQ; req->type = ix; req_set_path1 (req, pathname); REQ_SEND; } void aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef) PPCODE: { int ifd = s_fileno_croak (in_fh , 0); int ofd = s_fileno_croak (out_fh, 1); dREQ; req->type = EIO_SENDFILE; req->sv1 = newSVsv (out_fh); req->int1 = ofd; req->sv2 = newSVsv (in_fh); req->int2 = ifd; req->offs = in_offset; req->size = length; REQ_SEND; } void aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) PPCODE: { int fd = s_fileno_croak (fh, 0); dREQ; req->type = EIO_READAHEAD; req->sv1 = newSVsv (fh); req->int1 = fd; req->offs = offset; req->size = length; REQ_SEND; } void aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) ALIAS: aio_stat = EIO_STAT aio_lstat = EIO_LSTAT aio_statvfs = EIO_STATVFS PPCODE: { dREQ; req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path); REQ_SEND; } UV major (UV dev) ALIAS: minor = 1 CODE: RETVAL = ix ? major (dev) : minor (dev); OUTPUT: RETVAL UV makedev (UV maj, UV min) CODE: RETVAL = makedev (maj, min); OUTPUT: RETVAL void aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) PPCODE: { dREQ; req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path); REQ_SEND; } void aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) PPCODE: { dREQ; req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path); REQ_SEND; } void aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) PPCODE: { dREQ; req->int2 = mode; req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path); REQ_SEND; } void aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) PPCODE: { dREQ; req->int2 = SvOK (uid) ? SvIV (uid) : -1; req->int3 = SvOK (gid) ? SvIV (gid) : -1; req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path); REQ_SEND; } void aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef) PPCODE: { dREQ; req->type = EIO_READDIR; req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1; if (flags & EIO_READDIR_DENTS) req->int1 |= EIO_READDIR_CUSTOM2; req_set_path1 (req, pathname); REQ_SEND; } void aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) PPCODE: { dREQ; req->type = EIO_MKDIR; req->int2 = mode; req_set_path1 (req, pathname); REQ_SEND; } void aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) ALIAS: aio_unlink = EIO_UNLINK aio_rmdir = EIO_RMDIR aio_readdir = EIO_READDIR PPCODE: { dREQ; req->type = ix; req_set_path1 (req, pathname); REQ_SEND; } void aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) ALIAS: aio_link = EIO_LINK aio_symlink = EIO_SYMLINK aio_rename = EIO_RENAME PPCODE: { eio_wd wd2 = 0; dREQ; req->type = ix; req_set_path1 (req, oldpath); req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2); req->int3 = (long)wd2; REQ_SEND; } void aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) PPCODE: { dREQ; req->type = EIO_MKNOD; req->int2 = (mode_t)mode; req->offs = dev; req_set_path1 (req, pathname); REQ_SEND; } void aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef) ALIAS: aio_mtouch = EIO_MTOUCH aio_msync = EIO_MSYNC PPCODE: { STRLEN svlen; char *svptr = SvPVbyte (data, svlen); UV len = SvUV (length); if (offset < 0) offset += svlen; if (offset < 0 || offset > svlen) croak ("offset outside of scalar"); if (!SvOK (length) || len + offset > svlen) len = svlen - offset; { dREQ; req->type = ix; req->sv2 = SvREFCNT_inc (data); req->ptr2 = (char *)svptr + offset; req->size = len; req->int1 = flags; REQ_SEND; } } void aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef) PPCODE: { STRLEN svlen; char *svptr = SvPVbyte (data, svlen); UV len = SvUV (length); if (offset < 0) offset += svlen; if (offset < 0 || offset > svlen) croak ("offset outside of scalar"); if (!SvOK (length) || len + offset > svlen) len = svlen - offset; { dREQ; req->type = EIO_MLOCK; req->sv2 = SvREFCNT_inc (data); req->ptr2 = (char *)svptr + offset; req->size = len; REQ_SEND; } } void aio_mlockall (IV flags, SV *callback=&PL_sv_undef) PPCODE: { dREQ; req->type = EIO_MLOCKALL; req->int1 = flags; REQ_SEND; } void aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef) PPCODE: { int fd = s_fileno_croak (fh, 0); dREQ; req->type = EIO_CUSTOM; req->sv1 = newSVsv (fh); req->int1 = fd; req->feed = fiemap; #if HAVE_FIEMAP /* keep our fingers crossed that the next two types are 64 bit */ req->offs = start; req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL; req->int2 = flags; req->int3 = SvOK (count) ? SvIV (count) : -1; #endif REQ_SEND; } void aio_busy (double delay, SV *callback=&PL_sv_undef) PPCODE: { dREQ; req->type = EIO_BUSY; req->nv1 = delay < 0. ? 0. : delay; REQ_SEND; } void aio_group (SV *callback=&PL_sv_undef) PPCODE: { dREQ; req->type = EIO_GROUP; req_submit (req); XPUSHs (req_sv (req, aio_grp_stash)); } void aio_nop (SV *callback=&PL_sv_undef) ALIAS: aio_nop = EIO_NOP aio_sync = EIO_SYNC PPCODE: { dREQ; req->type = ix; REQ_SEND; } int aioreq_pri (int pri = 0) CODE: RETVAL = next_pri; if (items > 0) { if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX; next_pri = pri; } OUTPUT: RETVAL void aioreq_nice (int nice = 0) CODE: nice = next_pri - nice; if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN; if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; next_pri = nice; void flush () CODE: while (eio_nreqs ()) { poll_wait (); poll_cb (); } int poll () CODE: poll_wait (); RETVAL = poll_cb (); OUTPUT: RETVAL int poll_fileno () CODE: RETVAL = s_epipe_fd (&respipe); OUTPUT: RETVAL int poll_cb (...) PROTOTYPE: CODE: RETVAL = poll_cb (); OUTPUT: RETVAL void poll_wait () CODE: poll_wait (); int nreqs () CODE: RETVAL = eio_nreqs (); OUTPUT: RETVAL int nready () CODE: RETVAL = eio_nready (); OUTPUT: RETVAL int npending () CODE: RETVAL = eio_npending (); OUTPUT: RETVAL int nthreads () CODE: RETVAL = eio_nthreads (); OUTPUT: RETVAL int fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) CODE: RETVAL = posix_fadvise (fh, offset, length, advice); OUTPUT: RETVAL IV sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) CODE: RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); OUTPUT: RETVAL void mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0) PPCODE: sv_unmagic (scalar, MMAP_MAGIC); { int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; void *addr = (void *)mmap (0, length, prot, flags, fd, offset); if (addr == (void *)-1) XSRETURN_NO; sv_force_normal (scalar); /* we store the length in mg_obj, as namlen is I32 :/ */ sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0) ->mg_obj = (SV *)length; SvUPGRADE (scalar, SVt_PV); /* nop... */ if (!(prot & PROT_WRITE)) SvREADONLY_on (scalar); if (SvLEN (scalar)) Safefree (SvPVX (scalar)); SvPVX (scalar) = (char *)addr; SvCUR_set (scalar, length); SvLEN_set (scalar, 0); SvPOK_only (scalar); XSRETURN_YES; } void munmap (SV *scalar) CODE: sv_unmagic (scalar, MMAP_MAGIC); int madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot) ALIAS: mprotect = 1 CODE: { STRLEN svlen; void *addr = SvPVbyte (scalar, svlen); size_t len = SvUV (length); if (offset < 0) offset += svlen; if (offset < 0 || offset > svlen) croak ("offset outside of scalar"); if (!SvOK (length) || len + offset > svlen) len = svlen - offset; addr = (void *)(((intptr_t)addr) + offset); eio_page_align (&addr, &len); switch (ix) { case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break; case 1: RETVAL = mprotect (addr, len, advice_or_prot); break; } } OUTPUT: RETVAL int munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef) CODE: { STRLEN svlen; void *addr = SvPVbyte (scalar, svlen); size_t len = SvUV (length); if (offset < 0) offset += svlen; if (offset < 0 || offset > svlen) croak ("offset outside of scalar"); if (!SvOK (length) || len + offset > svlen) len = svlen - offset; addr = (void *)(((intptr_t)addr) + offset); eio_page_align (&addr, &len); #if _POSIX_MEMLOCK_RANGE RETVAL = munlock (addr, len); #else RETVAL = EIO_ENOSYS (); #endif } OUTPUT: RETVAL int munlockall () CODE: #if _POSIX_MEMLOCK munlockall (); #else RETVAL = EIO_ENOSYS (); #endif OUTPUT: RETVAL int splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags) CODE: { #if HAVE_LINUX_SPLICE loff_t off_in_, off_out_; RETVAL = splice ( rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0, wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0, length, flags ); #else RETVAL = EIO_ENOSYS (); #endif } OUTPUT: RETVAL int tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags) CODE: #if HAVE_LINUX_SPLICE RETVAL = tee (rfh, wfh, length, flags); #else RETVAL = EIO_ENOSYS (); #endif OUTPUT: RETVAL void _on_next_submit (SV *cb) CODE: SvREFCNT_dec (on_next_submit); on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; PROTOTYPES: DISABLE MODULE = IO::AIO PACKAGE = IO::AIO::WD BOOT: { newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD )); newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD)); } void DESTROY (SV *self) CODE: { aio_wd wd = SvAIO_WD (self); #if HAVE_AT { SV *callback = &PL_sv_undef; dREQ; /* clobbers next_pri :/ */ next_pri = req->pri; /* restore next_pri */ req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */ req->type = EIO_WD_CLOSE; req->wd = wd; REQ_SEND; } #else eio_wd_close_sync (wd); #endif } MODULE = IO::AIO PACKAGE = IO::AIO::REQ void cancel (aio_req_ornot req) CODE: eio_cancel (req); void cb (aio_req_ornot req, SV *callback=&PL_sv_undef) PPCODE: { if (GIMME_V != G_VOID) XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef); if (items > 1) { SV *cb_cv =get_cb (callback); SvREFCNT_dec (req->callback); req->callback = SvREFCNT_inc (cb_cv); } } MODULE = IO::AIO PACKAGE = IO::AIO::GRP void add (aio_req grp, ...) PPCODE: { int i; if (grp->int1 == 2) croak ("cannot add requests to IO::AIO::GRP after the group finished"); for (i = 1; i < items; ++i ) { aio_req req; if (GIMME_V != G_VOID) XPUSHs (sv_2mortal (newSVsv (ST (i)))); req = SvAIO_REQ (ST (i)); if (req) eio_grp_add (grp, req); } } void cancel_subs (aio_req_ornot req) CODE: req_cancel_subs (req); void result (aio_req grp, ...) CODE: { int i; AV *av; grp->errorno = errno; av = newAV (); av_extend (av, items - 1); for (i = 1; i < items; ++i ) av_push (av, newSVsv (ST (i))); SvREFCNT_dec (grp->sv1); grp->sv1 = (SV *)av; } void errno (aio_req grp, int errorno = errno) CODE: grp->errorno = errorno; void limit (aio_req grp, int limit) CODE: eio_grp_limit (grp, limit); void feed (aio_req grp, SV *callback=&PL_sv_undef) CODE: { SvREFCNT_dec (grp->sv2); grp->sv2 = newSVsv (callback); grp->feed = aio_grp_feed; if (grp->int2 <= 0) grp->int2 = 2; eio_grp_limit (grp, grp->int2); }