--- IO-AIO/AIO.xs 2005/08/17 04:47:02 1.27 +++ IO-AIO/AIO.xs 2011/07/29 08:35:36 1.194 @@ -1,760 +1,1550 @@ -#define _REENTRANT 1 +#include "libeio/xthread.h" + #include #include "EXTERN.h" #include "perl.h" #include "XSUB.h" -#include "autoconf/config.h" +#include "schmorp.h" +#include +#include +#include #include #include - -#include +#include #include -#include #include -#include - -typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ -typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ -typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ - -#if __ia64 -# define STACKSIZE 65536 -#else -# define STACKSIZE 4096 +#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES +# include #endif -enum { - REQ_QUIT, - REQ_OPEN, REQ_CLOSE, - REQ_READ, REQ_WRITE, REQ_READAHEAD, - REQ_STAT, REQ_LSTAT, REQ_FSTAT, - REQ_FSYNC, REQ_FDATASYNC, - REQ_UNLINK, REQ_RMDIR, - REQ_SYMLINK, -}; +/* perl namespace pollution */ +#undef VERSION -typedef struct aio_cb { - struct aio_cb *volatile next; +/* 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 - int type; +#else - int fd; - off_t offset; - size_t length; - ssize_t result; - mode_t mode; /* open */ - int errorno; - SV *data, *callback, *fh; - void *dataptr, *data2ptr; - STRLEN dataoffset; + #include + #include + #include + #include + #include - Stat_t *statdata; -} aio_cb; +#endif -typedef aio_cb *aio_req; +#define EIO_STRUCT_STAT Stat_t -static int started; -static volatile int nreqs; -static int max_outstanding = 1<<30; -static int respipe [2]; +/* use NV for 32 bit perls as it allows larger offsets */ +#if IVSIZE >= 8 +# define VAL64 IV +# define SvVAL64 SvIV +# define newSVval64 newSViv +#else +# define VAL64 NV +# define SvVAL64 SvNV +# define newSVval64 newSVnv +#endif -static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; -static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; -static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; +/*****************************************************************************/ -static volatile aio_req reqs, reqe; /* queue start, queue end */ -static volatile aio_req ress, rese; /* queue start, queue end */ +#if __GNUC__ >= 3 +# define expect(expr,value) __builtin_expect ((expr),(value)) +#else +# define expect(expr,value) (expr) +#endif -static void free_req (aio_req req) -{ - if (req->data) - SvREFCNT_dec (req->data); +#define expect_false(expr) expect ((expr) != 0, 0) +#define expect_true(expr) expect ((expr) != 0, 1) - if (req->fh) - SvREFCNT_dec (req->fh); +/*****************************************************************************/ - if (req->statdata) - Safefree (req->statdata); +typedef SV SV8; /* byte-sv, used for argument-checking */ +typedef int aio_rfd; /* read file desriptor */ +typedef int aio_wfd; /* write file descriptor */ - if (req->callback) - SvREFCNT_dec (req->callback); +static HV *aio_stash, *aio_req_stash, *aio_grp_stash; - Safefree (req); -} +#define EIO_REQ_MEMBERS \ + SV *callback; \ + SV *sv1, *sv2; \ + STRLEN stroffset; \ + SV *self; -static void -poll_wait () -{ - if (nreqs && !ress) - { - fd_set rfd; - FD_ZERO(&rfd); - FD_SET(respipe [0], &rfd); +#define EIO_NO_WRAPPERS 1 - select (respipe [0] + 1, &rfd, 0, 0, 0); - } -} - -static int -poll_cb () -{ - dSP; - int count = 0; - int do_croak = 0; - aio_req req; - - for (;;) - { - pthread_mutex_lock (&reslock); - req = ress; +#include "libeio/config.h" +#include "libeio/eio.h" - if (req) - { - ress = req->next; +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) - if (!ress) - { - rese = 0; +#include "libeio/eio.c" - /* read any signals sent by the worker threads */ - char buf [32]; - while (read (respipe [0], buf, 32) == 32) - ; - } - } +/* Linux/others */ +#ifndef O_ASYNC +# define O_ASYNC 0 +#endif +#ifndef O_DIRECT +# define O_DIRECT 0 +#endif +#ifndef O_NOATIME +# define O_NOATIME 0 +#endif - pthread_mutex_unlock (&reslock); +/* POSIX */ +#ifndef O_CLOEXEC +# define O_CLOEXEC 0 +#endif +#ifndef O_NOFOLLOW +# define O_NOFOLLOW 0 +#endif +#ifndef O_NOCTTY +# define O_NOCTTY 0 +#endif +#ifndef O_NONBLOCK +# define O_NONBLOCK 0 +#endif +#ifndef O_EXEC +# define O_EXEC 0 +#endif +#ifndef O_SEARCH +# define O_SEARCH 0 +#endif +#ifndef O_DIRECTORY +# define O_DIRECTORY 0 +#endif +#ifndef O_DSYNC +# define O_DSYNC 0 +#endif +#ifndef O_RSYNC +# define O_RSYNC 0 +#endif +#ifndef O_SYNC +# define O_SYNC 0 +#endif +#ifndef O_TTY_INIT +# define O_TTY_INIT 0 +#endif - if (!req) - break; +#ifndef POSIX_FADV_NORMAL +# define POSIX_FADV_NORMAL 0 +#endif +#ifndef POSIX_FADV_SEQUENTIAL +# define POSIX_FADV_SEQUENTIAL 0 +#endif +#ifndef POSIX_FADV_RANDOM +# define POSIX_FADV_RANDOM 0 +#endif +#ifndef POSIX_FADV_NOREUSE +# define POSIX_FADV_NOREUSE 0 +#endif +#ifndef POSIX_FADV_WILLNEED +# define POSIX_FADV_WILLNEED 0 +#endif +#ifndef POSIX_FADV_DONTNEED +# define POSIX_FADV_DONTNEED 0 +#endif - nreqs--; +#if !HAVE_POSIX_FADVISE +# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */ +#endif - if (req->type == REQ_QUIT) - started--; - else - { - int errorno = errno; - errno = req->errorno; +#ifndef POSIX_MADV_NORMAL +# define POSIX_MADV_NORMAL 0 +#endif +#ifndef POSIX_MADV_SEQUENTIAL +# define POSIX_MADV_SEQUENTIAL 0 +#endif +#ifndef POSIX_MADV_RANDOM +# define POSIX_MADV_RANDOM 0 +#endif +#ifndef POSIX_MADV_WILLNEED +# define POSIX_MADV_WILLNEED 0 +#endif +#ifndef POSIX_MADV_DONTNEED +# define POSIX_MADV_DONTNEED 0 +#endif - if (req->type == REQ_READ) - SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); +#if !HAVE_POSIX_MADVISE +# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */ +#endif - if (req->statdata) - { - PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; - PL_laststatval = req->result; - PL_statcache = *(req->statdata); - } +#ifndef PROT_NONE +# define PROT_NONE 0 +#endif +#ifndef PROT_READ +# define PROT_READ 0 +#endif +#ifndef PROT_WRITE +# define PROT_READ 0 +#endif +#ifndef PROT_EXEC +# define PROT_EXEC 0 +#endif - ENTER; - PUSHMARK (SP); - XPUSHs (sv_2mortal (newSViv (req->result))); +#ifndef ST_RDONLY +# define ST_RDONLY 0 +#endif +#ifndef ST_NOSUID +# define ST_NOSUID 0 +#endif +#ifndef ST_NODEV +# define ST_NODEV 0 +#endif +#ifndef ST_NOEXEC +# define ST_NOEXEC 0 +#endif +#ifndef ST_SYNCHRONOUS +# define ST_SYNCHRONOUS 0 +#endif +#ifndef ST_MANDLOCK +# define ST_MANDLOCK 0 +#endif +#ifndef ST_WRITE +# define ST_WRITE 0 +#endif +#ifndef ST_APPEND +# define ST_APPEND 0 +#endif +#ifndef ST_IMMUTABLE +# define ST_IMMUTABLE 0 +#endif +#ifndef ST_NOATIME +# define ST_NOATIME 0 +#endif +#ifndef ST_NODIRATIME +# define ST_NODIRATIME 0 +#endif +#ifndef ST_RELATIME +# define ST_RELATIME 0 +#endif - if (req->type == REQ_OPEN) - { - /* convert fd to fh */ - SV *fh; +#ifndef S_IFIFO +# define S_IFIFO 0 +#endif +#ifndef S_IFCHR +# define S_IFCHR 0 +#endif +#ifndef S_IFBLK +# define S_IFBLK 0 +#endif +#ifndef S_IFLNK +# define S_IFLNK 0 +#endif +#ifndef S_IFREG +# define S_IFREG 0 +#endif +#ifndef S_IFDIR +# define S_IFDIR 0 +#endif +#ifndef S_IFWHT +# define S_IFWHT 0 +#endif +#ifndef S_IFSOCK +# define S_IFSOCK 0 +#endif - PUTBACK; - call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); - SPAGAIN; +#ifndef MAP_ANONYMOUS +# ifdef MAP_ANON +# define MAP_ANONYMOUS MAP_ANON +# else +# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */ +# endif +#endif +#ifndef MAP_HUGETLB +# define MAP_HUGETLB 0 +#endif +#ifndef MAP_LOCKED +# define MAP_LOCKED 0 +#endif +#ifndef MAP_NORESERVE +# define MAP_NORESERVE 0 +#endif +#ifndef MAP_POPULATE +# define MAP_POPULATE 0 +#endif +#ifndef MAP_NONBLOCK +# define MAP_NONBLOCK 0 +#endif - fh = SvREFCNT_inc (POPs); +#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 - PUSHMARK (SP); - XPUSHs (sv_2mortal (fh)); - } +#ifndef PAGESIZE +# define PAGESIZE sysconf (_SC_PAGESIZE) +#endif - if (SvOK (req->callback)) - { - PUTBACK; - call_sv (req->callback, G_VOID | G_EVAL); - SPAGAIN; +enum { + FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ +}; - if (SvTRUE (ERRSV)) - { - free_req (req); - croak (0); - } - } +typedef eio_req *aio_req; +typedef eio_req *aio_req_ornot; - LEAVE; +static SV *on_next_submit; +static int next_pri = EIO_PRI_DEFAULT; +static int max_outstanding; - errno = errorno; - count++; - } +static s_epipe respipe; - free_req (req); - } +static void req_destroy (aio_req req); +static void req_cancel (aio_req req); - return count; +static void want_poll (void) +{ + /* write a dummy byte to the pipe so fh becomes ready */ + s_epipe_signal (&respipe); } -static void *aio_proc(void *arg); - -static void -start_thread (void) +static void done_poll (void) { - sigset_t fullsigset, oldsigset; - pthread_t tid; - pthread_attr_t attr; - - pthread_attr_init (&attr); - pthread_attr_setstacksize (&attr, STACKSIZE); - pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); - - sigfillset (&fullsigset); - sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); - - if (pthread_create (&tid, &attr, aio_proc, 0) == 0) - started++; - - sigprocmask (SIG_SETMASK, &oldsigset, 0); + /* read any signals sent by the worker threads */ + s_epipe_drain (&respipe); } -static void -send_req (aio_req req) +/* must be called at most once */ +static SV *req_sv (aio_req req, HV *stash) { - nreqs++; - - pthread_mutex_lock (&reqlock); - - req->next = 0; - - if (reqe) + if (!req->self) { - reqe->next = req; - reqe = req; + req->self = (SV *)newHV (); + sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); } - else - reqe = reqs = req; - pthread_cond_signal (&reqwait); - pthread_mutex_unlock (&reqlock); + return sv_2mortal (sv_bless (newRV_inc (req->self), stash)); +} - if (nreqs > max_outstanding) - for (;;) - { - poll_cb (); +static aio_req SvAIO_REQ (SV *sv) +{ + MAGIC *mg; - if (nreqs <= max_outstanding) - break; + if (!SvROK (sv) + || (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"); - poll_wait (); - } + mg = mg_find (SvRV (sv), PERL_MAGIC_ext); + + return mg ? (aio_req)mg->mg_ptr : 0; } -static void -end_thread (void) +static void aio_grp_feed (aio_req grp) { - aio_req req; - Newz (0, req, 1, aio_cb); - req->type = REQ_QUIT; + if (grp->sv2 && SvOK (grp->sv2)) + { + dSP; - send_req (req); + 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 min_parallel (int nthreads) +static void req_submit (eio_req *req) { - while (nthreads > started) - start_thread (); -} + eio_submit (req); -static void max_parallel (int nthreads) -{ - int cur = started; + if (expect_false (on_next_submit)) + { + dSP; + SV *cb = sv_2mortal (on_next_submit); - while (cur > nthreads) - { - end_thread (); - cur--; - } + on_next_submit = 0; - while (started > nthreads) - { - poll_wait (); - poll_cb (); + PUSHMARK (SP); + PUTBACK; + call_sv (cb, G_DISCARD | G_EVAL); } } -static void create_pipe () +static int req_invoke (eio_req *req) { - if (pipe (respipe)) - croak ("unable to initialize result pipe"); + if (req->flags & FLAG_SV2_RO_OFF) + SvREADONLY_off (req->sv2); - if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) - croak ("cannot set result pipe to nonblocking mode"); + 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); - if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) - croak ("cannot set result pipe to nonblocking mode"); -} + /* 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); + } -static void atfork_prepare (void) -{ - for (;;) { + switch (req->type) + { + case EIO_READDIR: + { + SV *rv = &PL_sv_undef; - for (;;) - { - poll_cb (); + 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; + } + } - if (!nreqs) - break; + rv = sv_2mortal (newRV_noinc ((SV *)av)); + } - poll_wait (); - } + PUSHs (rv); - pthread_mutex_lock (&reqlock); + if (req->int1 & EIO_READDIR_CUSTOM1) + XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2)))); + } + break; - if (!nreqs) - break; + case EIO_OPEN: + { + /* convert fd to fh */ + SV *fh = &PL_sv_undef; - pthread_mutex_unlock (&reqlock); - } + 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 + ); - pthread_mutex_lock (&reslock); + if (do_open (gv, sym, symlen, 0, 0, 0, 0)) + fh = (SV *)gv; + } - assert (!nreqs && !reqs && !ress); -} + PUSHs (fh); + } + break; -static void atfork_parent (void) -{ - pthread_mutex_unlock (&reslock); - pthread_mutex_unlock (&reqlock); -} + 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 (); -static void atfork_child (void) -{ - int restart = started; - started = 0; + rv = sv_2mortal (newRV_noinc ((SV *)hv)); - atfork_parent (); + 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 (f->f_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 - min_parallel (restart); -} + PUSHs (rv); + } -/*****************************************************************************/ -/* work around various missing functions */ + break; -#if !HAVE_PREADWRITE -# define pread aio_pread -# define pwrite aio_pwrite + case EIO_GROUP: + req->int1 = 2; /* mark group as finished */ -/* - * make our pread/pwrite safe against themselves, but not against - * normal read/write by using a mutex. slows down execution a lot, - * but that's your problem, not mine. - */ -static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; + 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; -static ssize_t -pread (int fd, void *buf, size_t count, off_t offset) -{ - ssize_t res; - off_t ooffset; + case EIO_NOP: + case EIO_BUSY: + break; - pthread_mutex_lock (&iolock); - ooffset = lseek (fd, 0, SEEK_CUR); - lseek (fd, offset, SEEK_SET); - res = read (fd, buf, count); - lseek (fd, ooffset, SEEK_SET); - pthread_mutex_unlock (&iolock); + case EIO_READLINK: + case EIO_REALPATH: + if (req->result > 0) + PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result))); + break; - return res; -} + case EIO_STAT: + case EIO_LSTAT: + case EIO_FSTAT: + PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; + 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; -static ssize_t -pwrite (int fd, void *buf, size_t count, off_t offset) -{ - ssize_t res; - off_t ooffset; + 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; - pthread_mutex_lock (&iolock); - ooffset = lseek (fd, 0, SEEK_CUR); - lseek (fd, offset, SEEK_SET); - res = write (fd, buf, count); - lseek (fd, offset, SEEK_SET); - pthread_mutex_unlock (&iolock); + case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */ + if (req->result > 0) + SvIV_set (sv_result, 0); + /* FALLTHROUGH */ - return res; -} -#endif + default: + PUSHs (sv_result); + break; + } -#if !HAVE_FDATASYNC -# define fdatasync fsync -#endif + errno = req->errorno; -#if !HAVE_READAHEAD -# define readahead aio_readahead + 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; -static char readahead_buf[4096]; + FREETMPS; + LEAVE; + + PUTBACK; + } + + return !!SvTRUE (ERRSV); +} -static ssize_t -readahead (int fd, off_t offset, size_t count) +static void req_destroy (aio_req req) { - while (count > 0) + if (req->self) { - size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); - - pread (fd, readahead_buf, len, offset); - offset += len; - count -= len; + sv_unmagic (req->self, PERL_MAGIC_ext); + SvREFCNT_dec (req->self); } - errno = 0; + SvREFCNT_dec (req->sv1); + SvREFCNT_dec (req->sv2); + SvREFCNT_dec (req->callback); + + Safefree (req); } -#endif -/*****************************************************************************/ +static void req_cancel_subs (aio_req grp) +{ + if (grp->type != EIO_GROUP) + return; + + SvREFCNT_dec (grp->sv2); + grp->sv2 = 0; -static void * -aio_proc (void *thr_arg) + eio_grp_cancel (grp); +} + +static void create_respipe (void) { - aio_req req; - int type; + if (s_epipe_renew (&respipe)) + croak ("IO::AIO: unable to initialize result pipe"); +} - do +static void poll_wait (void) +{ + while (eio_nreqs ()) { - pthread_mutex_lock (&reqlock); + int size; - for (;;) - { - req = reqs; + X_LOCK (reslock); + size = res_queue.size; + X_UNLOCK (reslock); - if (reqs) - { - reqs = reqs->next; - if (!reqs) reqe = 0; - } + if (size) + return; - if (req) - break; + etp_maybe_start_thread (); - pthread_cond_wait (&reqwait, &reqlock); - } + s_epipe_wait (&respipe); + } +} - pthread_mutex_unlock (&reqlock); - - errno = 0; /* strictly unnecessary */ +static int poll_cb (void) +{ + for (;;) + { + int res = eio_poll (); - type = req->type; + if (res > 0) + croak (0); - switch (type) - { - case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; - case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; + if (!max_outstanding || max_outstanding > eio_nreqs ()) + return res; - case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; + poll_wait (); + } +} - case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; - case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; - case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; +static void ecb_cold +reinit (void) +{ + create_respipe (); - case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; - case REQ_CLOSE: req->result = close (req->fd); break; - case REQ_UNLINK: req->result = unlink (req->dataptr); break; - case REQ_RMDIR: req->result = rmdir (req->dataptr); break; - case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; + if (eio_init (want_poll, done_poll) < 0) + croak ("IO::AIO: unable to initialise eio library"); +} - case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; - case REQ_FSYNC: req->result = fsync (req->fd); break; +/*****************************************************************************/ - case REQ_QUIT: - break; +#if !_POSIX_MAPPED_FILES +# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1) +# define munmap(addr,length) (errno = ENOSYS, -1) +#endif - default: - req->result = ENOSYS; - break; - } +#if !_POSIX_MEMORY_PROTECTION +# define mprotect(addr,len,prot) (errno = ENOSYS, -1) +# define PROT_NONE 0 +# define PROT_WRITE 0 +# define MAP_PRIVATE 0 +# define MAP_SHARED 0 +# define MAP_FIXED 0 +#endif - req->errorno = errno; +#define MMAP_MAGIC PERL_MAGIC_ext - pthread_mutex_lock (&reslock); +static int mmap_free (pTHX_ SV *sv, MAGIC *mg) +{ + int old_errno = errno; + munmap (mg->mg_ptr, (size_t)mg->mg_obj); + errno = old_errno; - req->next = 0; + mg->mg_obj = 0; /* just in case */ - if (rese) - { - rese->next = req; - rese = req; - } - else - { - rese = ress = req; + SvREADONLY_off (sv); - /* write a dummy byte to the pipe so fh becomes ready */ - write (respipe [1], &respipe, 1); - } + if (SvPVX (sv) != mg->mg_ptr) + croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected"); - pthread_mutex_unlock (&reslock); - } - while (type != REQ_QUIT); + 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; +} + #define dREQ \ + SV *cb_cv; \ aio_req req; \ + int req_pri = next_pri; \ + next_pri = EIO_PRI_DEFAULT; \ \ - if (SvOK (callback) && !SvROK (callback)) \ - croak ("clalback must be undef or of reference type"); \ + cb_cv = get_cb (callback); \ \ - Newz (0, req, 1, aio_cb); \ + Newz (0, req, 1, eio_req); \ if (!req) \ - croak ("out of memory during aio_req allocation"); \ + croak ("out of memory during eio_req allocation"); \ \ - req->callback = newSVsv (callback); - + req->callback = SvREFCNT_inc (cb_cv); \ + req->pri = req_pri + +#define REQ_SEND \ + PUTBACK; \ + req_submit (req); \ + SPAGAIN; \ + \ + if (GIMME_V != G_VOID) \ + XPUSHs (req_sv (req, aio_req_stash)); + MODULE = IO::AIO PACKAGE = IO::AIO PROTOTYPES: ENABLE BOOT: { - create_pipe (); - pthread_atfork (atfork_prepare, atfork_parent, atfork_child); + 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 }, + const_iv (EXDEV) + const_iv (ENOSYS) + 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_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 (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); + + 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 -min_parallel(nthreads) - int nthreads +reinit () + PROTOTYPE: + +void +max_poll_reqs (unsigned int nreqs) PROTOTYPE: $ + CODE: + eio_set_max_poll_reqs (nreqs); void -max_parallel(nthreads) - int nthreads +max_poll_time (double nseconds) PROTOTYPE: $ + CODE: + eio_set_max_poll_time (nseconds); -int -max_outstanding(nreqs) - int nreqs - PROTOTYPE: $ - CODE: - RETVAL = max_outstanding; - max_outstanding = nreqs; +void +min_parallel (unsigned int nthreads) + PROTOTYPE: $ + CODE: + eio_set_min_parallel (nthreads); void -aio_open(pathname,flags,mode,callback=&PL_sv_undef) - SV * pathname - int flags - int mode - SV * callback - PROTOTYPE: $$$;$ - CODE: +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_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) + PPCODE: { dREQ; - req->type = REQ_OPEN; - req->data = newSVsv (pathname); - req->dataptr = SvPVbyte_nolen (req->data); - req->fd = flags; - req->mode = mode; + req->type = EIO_OPEN; + req->sv1 = newSVsv (pathname); + req->ptr1 = SvPVbyte_nolen (req->sv1); + req->int1 = flags; + req->int2 = mode; - send_req (req); + REQ_SEND; } void -aio_close(fh,callback=&PL_sv_undef) - SV * fh - SV * callback - PROTOTYPE: $;$ +aio_fsync (SV *fh, SV *callback=&PL_sv_undef) ALIAS: - aio_close = REQ_CLOSE - aio_fsync = REQ_FSYNC - aio_fdatasync = REQ_FDATASYNC - CODE: + 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->fh = newSVsv (fh); - req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); + req->sv1 = newSVsv (fh); + req->int1 = fd; + + REQ_SEND (req); +} + +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 (req); +} + +void +aio_fallocate (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 (req); +} + +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; - send_req (req); + REQ_SEND (req); } void -aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) - SV * fh - UV offset - IV length - SV * data - IV dataoffset - SV * callback +aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) ALIAS: - aio_read = REQ_READ - aio_write = REQ_WRITE - PROTOTYPE: $$$$$;$ - CODE: + aio_read = EIO_READ + aio_write = EIO_WRITE + PPCODE: { - aio_req req; STRLEN svlen; + int fd = s_fileno_croak (fh, ix == EIO_WRITE); char *svptr = SvPVbyte (data, svlen); - - SvUPGRADE (data, SVt_PV); - SvPOK_on (data); + UV len = SvUV (length); if (dataoffset < 0) dataoffset += svlen; if (dataoffset < 0 || dataoffset > svlen) - croak ("data offset outside of string"); + croak ("dataoffset outside of data scalar"); - if (ix == REQ_WRITE) + if (ix == EIO_WRITE) { /* write: check length and adjust. */ - if (length < 0 || length + dataoffset > svlen) - length = svlen - dataoffset; + if (!SvOK (length) || len + dataoffset > svlen) + len = svlen - dataoffset; } else { - /* read: grow scalar as necessary */ - svptr = SvGROW (data, length + dataoffset); + /* read: check type and grow scalar as necessary */ + SvUPGRADE (data, SVt_PV); + svptr = SvGROW (data, len + dataoffset + 1); } - if (length < 0) - croak ("length must not be negative"); - { dREQ; req->type = ix; - req->fh = newSVsv (fh); - req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) - : IoOFP (sv_2io (fh))); - req->offset = offset; - req->length = length; - req->data = SvREFCNT_inc (data); - req->dataptr = (char *)svptr + dataoffset; + req->sv1 = newSVsv (fh); + req->int1 = fd; + req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; + req->size = len; + req->sv2 = SvREFCNT_inc (data); + req->ptr2 = (char *)svptr + dataoffset; + req->stroffset = dataoffset; + + if (!SvREADONLY (data)) + { + SvREADONLY_on (data); + req->flags |= FLAG_SV2_RO_OFF; + } - send_req (req); + REQ_SEND; } } void -aio_readahead(fh,offset,length,callback=&PL_sv_undef) - SV * fh - UV offset - IV length - SV * callback - PROTOTYPE: $$$;$ - CODE: +aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) + ALIAS: + aio_readlink = EIO_READLINK + aio_realpath = EIO_REALPATH + PPCODE: { + dREQ; + + req->type = ix; + req->sv1 = newSVsv (path); + req->ptr1 = SvPVbyte_nolen (req->sv1); + + 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 = REQ_READAHEAD; - req->fh = newSVsv (fh); - req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); - req->offset = offset; - req->length = length; + 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; - send_req (req); + REQ_SEND; } void -aio_stat(fh_or_path,callback=&PL_sv_undef) - SV * fh_or_path - SV * callback +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 = REQ_STAT - aio_lstat = REQ_LSTAT + aio_stat = EIO_STAT + aio_lstat = EIO_LSTAT + aio_statvfs = EIO_STATVFS + PPCODE: +{ + dREQ; + + req->sv1 = newSVsv (fh_or_path); + + if (SvPOK (req->sv1)) + { + req->type = ix; + req->ptr1 = SvPVbyte_nolen (req->sv1); + } + else + { + req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT; + req->int1 = PerlIO_fileno (IoIFP (sv_2io (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; - New (0, req->statdata, 1, Stat_t); - if (!req->statdata) + req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; + req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; + req->sv1 = newSVsv (fh_or_path); + + if (SvPOK (req->sv1)) { - free_req (req); - croak ("out of memory during aio_req->statdata allocation"); + req->type = EIO_UTIME; + req->ptr1 = SvPVbyte_nolen (req->sv1); + } + else + { + req->type = EIO_FUTIME; + req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); } - if (SvPOK (fh_or_path)) + REQ_SEND; +} + +void +aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) + PPCODE: +{ + dREQ; + + req->sv1 = newSVsv (fh_or_path); + req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; + + if (SvPOK (req->sv1)) + { + req->type = EIO_TRUNCATE; + req->ptr1 = SvPVbyte_nolen (req->sv1); + } + else + { + req->type = EIO_FTRUNCATE; + req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); + } + + REQ_SEND; +} + +void +aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) + ALIAS: + aio_chmod = EIO_CHMOD + aio_mkdir = EIO_MKDIR + PPCODE: +{ + dREQ; + + req->int2 = mode; + req->sv1 = newSVsv (fh_or_path); + + if (SvPOK (req->sv1)) { req->type = ix; - req->data = newSVsv (fh_or_path); - req->dataptr = SvPVbyte_nolen (req->data); + req->ptr1 = SvPVbyte_nolen (req->sv1); + } + else + { + req->type = EIO_FCHMOD; + req->int1 = PerlIO_fileno (IoIFP (sv_2io (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->sv1 = newSVsv (fh_or_path); + + if (SvPOK (req->sv1)) + { + req->type = EIO_CHOWN; + req->ptr1 = SvPVbyte_nolen (req->sv1); } else { - req->type = REQ_FSTAT; - req->fh = newSVsv (fh_or_path); - req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); + req->type = EIO_FCHOWN; + req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); } - send_req (req); + REQ_SEND; } void -aio_unlink(pathname,callback=&PL_sv_undef) - SV * pathname - SV * callback +aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef) + PPCODE: +{ + dREQ; + + req->type = EIO_READDIR; + req->sv1 = newSVsv (pathname); + req->ptr1 = SvPVbyte_nolen (req->sv1); + req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1; + + if (flags & EIO_READDIR_DENTS) + req->int1 |= EIO_READDIR_CUSTOM2; + + REQ_SEND; +} + +void +aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) ALIAS: - aio_unlink = REQ_UNLINK - aio_rmdir = REQ_RMDIR - CODE: + aio_unlink = EIO_UNLINK + aio_rmdir = EIO_RMDIR + aio_readdir = EIO_READDIR + PPCODE: { dREQ; req->type = ix; - req->data = newSVsv (pathname); - req->dataptr = SvPVbyte_nolen (req->data); + req->sv1 = newSVsv (pathname); + req->ptr1 = SvPVbyte_nolen (req->sv1); + + 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: +{ + dREQ; - send_req (req); + req->type = ix; + req->sv1 = newSVsv (oldpath); + req->ptr1 = SvPVbyte_nolen (req->sv1); + req->sv2 = newSVsv (newpath); + req->ptr2 = SvPVbyte_nolen (req->sv2); + + REQ_SEND; } void -aio_symlink(oldpath,newpath,callback=&PL_sv_undef) - SV * oldpath - SV * newpath - SV * callback - CODE: +aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) + PPCODE: { dREQ; - req->type = REQ_SYMLINK; - req->fh = newSVsv (oldpath); - req->data2ptr = SvPVbyte_nolen (req->fh); - req->data = newSVsv (newpath); - req->dataptr = SvPVbyte_nolen (req->data); + req->type = EIO_MKNOD; + req->sv1 = newSVsv (pathname); + req->ptr1 = SvPVbyte_nolen (req->sv1); + req->int2 = (mode_t)mode; + req->offs = dev; - send_req (req); + REQ_SEND; } void -flush() - PROTOTYPE: +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_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: - while (nreqs) - { - poll_wait (); - poll_cb (); - } + 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 -poll() - PROTOTYPE: +aioreq_nice (int nice = 0) CODE: - if (nreqs) + 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_fileno() - PROTOTYPE: +poll () + CODE: + poll_wait (); + RETVAL = poll_cb (); + OUTPUT: + RETVAL + +int +poll_fileno () CODE: - RETVAL = respipe [0]; + RETVAL = s_epipe_fd (&respipe); OUTPUT: RETVAL int -poll_cb(...) +poll_cb (...) PROTOTYPE: CODE: RETVAL = poll_cb (); @@ -762,17 +1552,260 @@ RETVAL void -poll_wait() - PROTOTYPE: +poll_wait () CODE: - if (nreqs) - poll_wait (); + poll_wait (); int -nreqs() - PROTOTYPE: +nreqs () + CODE: + RETVAL = eio_nreqs (); + OUTPUT: + RETVAL + +int +nready () + CODE: + RETVAL = eio_nready (); + OUTPUT: + RETVAL + +int +npending () CODE: - RETVAL = nreqs; + 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, 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 = ((errno = ENOSYS), -1); +#endif +} + OUTPUT: + RETVAL + +int +munlockall () + CODE: +#if _POSIX_MEMLOCK + munlockall (); +#else + RETVAL = -1; + errno = 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::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); +} +