diff options
Diffstat (limited to 'abs/core/fam/fam-2.7.0-dnotify.patch')
| -rw-r--r-- | abs/core/fam/fam-2.7.0-dnotify.patch | 975 |
1 files changed, 975 insertions, 0 deletions
diff --git a/abs/core/fam/fam-2.7.0-dnotify.patch b/abs/core/fam/fam-2.7.0-dnotify.patch new file mode 100644 index 0000000..1d8910e --- /dev/null +++ b/abs/core/fam/fam-2.7.0-dnotify.patch @@ -0,0 +1,975 @@ +--- fam-2.7.0/src/DNotify.c++ 2004-01-30 00:00:00.000000000 +0100 ++++ fam-2.7.0.dnotify/src/DNotify.c++ 2004-01-30 00:00:00.000000000 +0100 +@@ -0,0 +1,582 @@ ++// Copyright (C) 2001 Red Hat, Inc. All Rights Reserved. ++// Copyright (C) 1999 Silicon Graphics, Inc. All Rights Reserved. ++// ++// This program is free software; you can redistribute it and/or modify it ++// under the terms of version 2 of the GNU General Public License as ++// published by the Free Software Foundation. ++// ++// This program is distributed in the hope that it would be useful, but ++// WITHOUT ANY WARRANTY; without even the implied warranty of ++// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Further, any ++// license provided herein, whether implied or otherwise, is limited to ++// this program in accordance with the express provisions of the GNU ++// General Public License. Patent licenses, if any, provided herein do not ++// apply to combinations of this program with other product or programs, or ++// any other product whatsoever. This program is distributed without any ++// warranty that the program is delivered free of the rightful claim of any ++// third person by way of infringement or the like. See the GNU General ++// Public License for more details. ++// ++// You should have received a copy of the GNU General Public License along ++// with this program; if not, write the Free Software Foundation, Inc., 59 ++// Temple Place - Suite 330, Boston MA 02111-1307, USA. ++ ++#define _GNU_SOURCE ++#include <fcntl.h> ++ ++#include <string.h> ++#include <signal.h> ++#include <stdio.h> ++#include <unistd.h> ++#include <sys/types.h> ++#include <sys/stat.h> ++#include <libgen.h> ++ ++#include "DNotify.h" ++ ++#include "Interest.h" ++#include "Log.h" ++#include "Scheduler.h" ++#include <memory> ++ ++ ++int DNotify::pipe_write_fd = -2; ++int DNotify::pipe_read_fd = -2; ++volatile sig_atomic_t DNotify::queue_overflowed = 0; ++volatile sig_atomic_t DNotify::queue_changed = 0; ++int DNotify::change_queue[QUEUESIZE]; ++volatile int DNotify::queue_head = 0; // Only modified by read handler ++volatile int DNotify::queue_tail = 0; // Only modified by signal handler ++DNotify::EventHandler DNotify::ehandler; ++ ++DNotify::DirWatch *DNotify::dir_hash[DIR_HASHSIZE]; ++DNotify::FileWatch *DNotify::file_hash[FILE_HASHSIZE]; ++ ++struct DNotify::FileWatch ++{ ++ DirWatch *dir_watch; ++ dev_t file_dev; ++ ino_t file_ino; ++ FileWatch *next; // The DirWatch.watches list ++ FileWatch *hash_link; ++}; ++ ++struct DNotify::DirWatch ++{ ++ int fd; ++ dev_t dir_dev; ++ ino_t dir_ino; ++ ++ DirWatch *hash_link; ++ FileWatch *watches; ++}; ++ ++struct DNotify::ChangeEventData ++{ ++ dev_t file_dev; ++ ino_t file_ino; ++}; ++ ++DNotify::DNotify(EventHandler h) ++{ ++ assert(ehandler == NULL); ++ ehandler = h; ++} ++ ++DNotify::~DNotify() ++{ ++ if (pipe_read_fd >= 0) ++ { ++ // Tell the scheduler. ++ ++ (void) Scheduler::remove_read_handler(pipe_read_fd); ++ ++ // Close the pipe. ++ ++ if (close(pipe_read_fd) < 0) ++ Log::perror("can't pipe read end"); ++ else ++ Log::debug("closed pipe read end"); ++ ++ if (close(pipe_write_fd) < 0) ++ Log::perror("can't pipe write end"); ++ else ++ Log::debug("closed pipe write end"); ++ pipe_read_fd = -1; ++ } ++ ehandler = NULL; ++} ++ ++void ++DNotify::overflow_signal_handler(int sig, siginfo_t *si, void *data) ++{ ++ char c = 'x'; ++ ++ { ++ char *str = "*************** overflow sigqueue ***********************\n"; ++ write (STDERR_FILENO, str, strlen(str)); ++ } ++ ++ if (!queue_overflowed) ++ { ++ queue_overflowed = 1; ++ // Trigger the read handler ++ write(pipe_write_fd, &c, 1); ++ } ++} ++ ++void ++DNotify::signal_handler(int sig, siginfo_t *si, void *data) ++{ ++ int left; ++ char c = 'x'; ++ ++ if (queue_head <= queue_tail) ++ left = (QUEUESIZE + queue_head) - queue_tail; ++ else ++ left = queue_head - queue_tail; ++ ++ // Must leave at least one item unused to see difference ++ // Betweeen empty and full ++ if (left <= 1) ++ { ++ queue_overflowed = 1; ++ { ++ char *str = "*************** overflow famqueue ****************\n"; ++ write (STDERR_FILENO, str, strlen(str)); ++ } ++ } ++ else ++ { ++ change_queue[queue_tail] = si->si_fd; ++ queue_tail = (queue_tail + 1) % QUEUESIZE; ++ } ++ ++ if (!queue_changed) ++ { ++ queue_changed = 1; ++ // Trigger the read handler ++ write(pipe_write_fd, &c, 1); ++ } ++} ++ ++bool ++DNotify::is_active() ++{ ++ if (pipe_read_fd == -2) ++ { ++ int filedes[2]; ++ int res; ++ ++ res = pipe (filedes); ++ if (res >= 0) ++ { Log::debug("opened pipe"); ++ pipe_read_fd = filedes[0]; ++ pipe_write_fd = filedes[1]; ++ ++ // Setup signal handler: ++ struct sigaction act; ++ ++ act.sa_sigaction = signal_handler; ++ sigemptyset(&act.sa_mask); ++ act.sa_flags = SA_SIGINFO; ++ sigaction(SIGRTMIN, &act, NULL); ++ ++ // When the RT queue overflows we get a SIGIO ++ act.sa_sigaction = overflow_signal_handler; ++ sigemptyset(&act.sa_mask); ++ sigaction(SIGIO, &act, NULL); ++ ++ (void) Scheduler::install_read_handler(pipe_read_fd, read_handler, NULL); ++ } ++ } ++ return pipe_read_fd >= 0; ++} ++ ++DNotify::DirWatch * ++DNotify::lookup_dirwatch (int fd) ++{ ++ DirWatch **p; ++ DirWatch *w; ++ ++ p = dir_hashchain (fd); ++ ++ while (*p) ++ { ++ w = *p; ++ ++ if (w->fd == fd) ++ return w; ++ ++ p = &w->hash_link; ++ } ++ ++ return *p; ++} ++ ++// This colud be made faster by using another hash table. ++// But it's not that bad, since it is only used by express/revoke ++DNotify::DirWatch * ++DNotify::lookup_dirwatch (dev_t dir_dev, ino_t dir_ino) ++{ ++ DirWatch *p; ++ int i; ++ ++ for (i=0;i<DIR_HASHSIZE;i++) ++ { ++ p = dir_hash[i]; ++ ++ while (p) ++ { ++ if (p->dir_dev == dir_dev && p->dir_ino == dir_ino) ++ return p; ++ ++ p = p->hash_link; ++ } ++ } ++ ++ return NULL; ++} ++ ++DNotify::FileWatch * ++DNotify::lookup_filewatch (dev_t dev, ino_t ino) ++{ ++ FileWatch **p; ++ FileWatch *w; ++ ++ p = file_hashchain (dev, ino); ++ ++ while (*p) ++ { ++ w = *p; ++ ++ if (w->file_dev == dev && w->file_ino == ino) ++ return w; ++ ++ p = &w->hash_link; ++ } ++ ++ return *p; ++} ++ ++// Make sure w is not already in the hash table before calling ++// this function. ++void ++DNotify::hash_dirwatch(DirWatch *w) ++{ ++ DirWatch **p; ++ p = dir_hashchain (w->fd); ++ w->hash_link = *p; ++ *p = w; ++} ++ ++// Make sure w is not already in the hash table before calling ++// this function. ++void ++DNotify::hash_filewatch(FileWatch *w) ++{ ++ FileWatch **p; ++ p = file_hashchain (w->file_dev, w->file_ino); ++ w->hash_link = *p; ++ *p = w; ++} ++ ++void ++DNotify::unhash_dirwatch(DirWatch *w) ++{ ++ DirWatch **p; ++ ++ p = dir_hashchain (w->fd); ++ ++ while (*p) ++ { ++ if (*p == w) ++ { ++ *p = w->hash_link; ++ break; ++ } ++ p = &(*p)->hash_link; ++ } ++ w->hash_link = NULL; ++} ++ ++void ++DNotify::unhash_filewatch(FileWatch *w) ++{ ++ FileWatch **p; ++ ++ p = file_hashchain (w->file_dev, w->file_ino); ++ ++ while (*p) ++ { ++ if (*p == w) ++ { ++ *p = w->hash_link; ++ break; ++ } ++ p = &(*p)->hash_link; ++ } ++ w->hash_link = NULL; ++} ++ ++DNotify::Status ++DNotify::watch_dir(const char *notify_dir, dev_t file_dev, ino_t file_ino) ++{ ++ struct stat stat; ++ dev_t dir_dev; ++ ino_t dir_ino; ++ DirWatch *dwatch; ++ FileWatch *fw; ++ ++ if (lstat (notify_dir, &stat) == -1) ++ return BAD; ++ ++ dwatch = lookup_dirwatch(stat.st_dev, stat.st_ino); ++ if (!dwatch) ++ { ++ Log::debug ("New DirWatch for %s (%x %x)\n", ++ notify_dir, (int)stat.st_dev, (int)stat.st_ino); ++ dwatch = new DirWatch; ++ dwatch->watches = NULL; ++ dwatch->hash_link = NULL; ++ dwatch->dir_dev = stat.st_dev; ++ dwatch->dir_ino = stat.st_ino; ++ ++ dwatch->fd = open(notify_dir, O_RDONLY); ++ fcntl (dwatch->fd, F_SETSIG, SIGRTMIN); ++ if (fcntl (dwatch->fd, F_NOTIFY, ++ (DN_MODIFY|DN_CREATE|DN_DELETE|DN_RENAME|DN_ATTRIB) ++ | DN_MULTISHOT) == -1) { ++ return BAD; ++ } ++ hash_dirwatch (dwatch); ++ } ++ ++ fw = lookup_filewatch (file_dev, file_ino); ++ if (fw && fw->dir_watch == dwatch) ++ return OK; ++ ++ // No old FileWatch, need to add one: ++ Log::debug("New FileWatch for %x %x\n", (int)file_dev, (int)file_ino); ++ fw = new FileWatch; ++ fw->next = dwatch->watches; ++ dwatch->watches = fw; ++ fw->file_dev = file_dev; ++ fw->file_ino = file_ino; ++ fw->dir_watch = dwatch; ++ hash_filewatch(fw); ++ return OK; ++} ++ ++char * ++dirname_dup (const char *name) ++{ ++ char *copy = strdup(name); ++ char *res = dirname(copy); ++ res = strdup(res); ++ free (copy); ++ return res; ++} ++ ++DNotify::Status ++DNotify::express(const char *name, struct stat *status) ++{ ++ struct stat stat; ++ char *notify_dir; ++ int res; ++ Status s; ++ dev_t dev; ++ ino_t ino; ++ ++ Log::debug("express() name: %s\n", name); ++ ++ if (!is_active()) ++ return BAD; ++ ++ if (::lstat (name, &stat) == -1) ++ return BAD; ++ ++ dev = stat.st_dev; ++ ino = stat.st_ino; ++ ++ if ((stat.st_mode & S_IFMT) != S_IFDIR) ++ notify_dir = dirname_dup (name); ++ else ++ notify_dir = (char *)name; ++ ++ s = watch_dir (notify_dir, dev, ino); ++ if (notify_dir != name) ++ free (notify_dir); ++ if (s) ++ return s; ++ ++ // Check for a race condition; if someone removed or changed the ++ // file at the same time that we are expressing interest in it, ++ // revoke the interest so we don't get notifications about changes ++ // to a recycled inode that we don't otherwise care about. ++ // ++ struct stat st; ++ if (status == NULL) { ++ status = &st; ++ } ++ if (::lstat(name, status) == -1) { ++ Log::perror("stat on \"%s\" failed", name); ++ revoke(name, stat.st_dev, stat.st_ino); ++ return BAD; ++ } ++ if (status->st_dev != stat.st_dev ++ || status->st_ino != stat.st_ino) { ++ Log::error("File \"%s\" changed between express and stat", ++ name); ++ revoke(name, stat.st_dev, stat.st_ino); ++ return BAD; ++ } ++ ++ Log::debug("told dnotify to monitor \"%s\" = dev %d/%d, ino %d", name, ++ major(status->st_dev), minor(status->st_dev), ++ status->st_ino); ++ return OK; ++} ++ ++DNotify::Status ++DNotify::revoke(const char *name, dev_t dev, ino_t ino) ++{ ++ FileWatch *fwatch; ++ DirWatch *dwatch; ++ ++ Log::debug("revoke() name: %s, dev: %x, ino: %x\n", name, dev, ino); ++ ++ if (!is_active()) ++ return BAD; ++ ++ // Lookup FileWatch by dev:ino, and its DirWatch. ++ fwatch = lookup_filewatch (dev, ino); ++ if (fwatch == NULL) ++ return BAD; ++ ++ dwatch = fwatch->dir_watch; ++ ++ // delete FileWatch, if last FileWatch: close fd, delete DirWatch ++ Log::debug ("Destroying FileWatch for (%x %x)\n", ++ (int)fwatch->file_dev, (int)fwatch->file_ino); ++ FileWatch **p; ++ for (p=&dwatch->watches; *p; p=&(*p)->next) ++ { ++ if (*p == fwatch) ++ { ++ *p = (*p)->next; ++ break; ++ } ++ } ++ unhash_filewatch(fwatch); ++ delete fwatch; ++ if (dwatch->watches == NULL) ++ { ++ Log::debug ("Destroying DirWatch for (%x %x)\n", ++ (int)dwatch->dir_dev, (int)dwatch->dir_ino); ++ close(dwatch->fd); ++ unhash_dirwatch(dwatch); ++ delete dwatch; ++ } ++ ++ return OK; ++} ++ ++ ++void ++DNotify::all_watches_changed(void) ++{ ++ int i; ++ FileWatch *fw; ++ ++ for (i=0; i<FILE_HASHSIZE; i++) ++ { ++ fw = file_hash[i]; ++ while (fw) ++ { ++ (*ehandler)(fw->file_dev, fw->file_ino, CHANGE); ++ ++ fw = fw->hash_link; ++ } ++ } ++} ++ ++ ++void ++DNotify::read_handler(int fd, void *) ++{ ++ static char readbuf[5000]; ++ DirWatch *dw; ++ FileWatch *fw; ++ int snap_queue_tail; ++ int last_fd; ++ ++ int rc = read(fd, readbuf, sizeof readbuf); ++ queue_changed = 0; ++ if (rc < 0) ++ Log::perror("pipe read"); ++ else if (queue_overflowed) ++ { ++ // There is a *slight* race condition here. Between reading ++ // the queue_overflow flag and resetting it. But it doesn't ++ // matter, since I'm gonna handle the overflow after reseting ++ // anyway. ++ queue_overflowed = false; ++ ++ // We're soon gonna check all watches anyway, so ++ // get rid of the current queue ++ queue_head = queue_tail; ++ ++ all_watches_changed (); ++ } ++ else ++ { ++ // Don't read events that happen later than ++ // the initial read. (Otherwise skipping fd's ++ // might miss some changes). ++ snap_queue_tail = queue_tail; ++ last_fd = -1; ++ while (queue_head != snap_queue_tail) ++ { ++ fd = change_queue[queue_head]; ++ queue_head = (queue_head + 1) % QUEUESIZE; ++ ++ // Skip multiple changes to the same fd ++ if (fd != last_fd) ++ { ++ dw = lookup_dirwatch (fd); ++ if (dw) ++ { ++ int n_watches, i; ++ ChangeEventData *data; ++ ++ Log::debug("dnotify said dev %d/%d, ino %ld changed", ++ major(dw->dir_dev), minor(dw->dir_dev), dw->dir_ino); ++ ++ n_watches = 0; ++ for (fw=dw->watches; fw; fw=fw->next) ++ n_watches++; ++ ++ data = new ChangeEventData[n_watches]; ++ ++ i = 0; ++ for (fw=dw->watches; fw; fw=fw->next) ++ { ++ data[i].file_dev = fw->file_dev; ++ data[i].file_ino = fw->file_ino; ++ i++; ++ } ++ ++ for (i = 0; i < n_watches; i++) ++ { ++ (*ehandler)(data[i].file_dev, data[i].file_ino, CHANGE); ++ } ++ ++ delete[] data; ++ } ++ } ++ last_fd = fd; ++ } ++ } ++} ++ +--- fam-2.7.0/src/DNotify.h 2004-01-30 00:00:00.000000000 +0100 ++++ fam-2.7.0.dnotify/src/DNotify.h 2004-01-30 00:00:00.000000000 +0100 +@@ -0,0 +1,98 @@ ++// Copyright (C) 2001 Red Hat, Inc. All Rights Reserved. ++// Copyright (C) 1999 Silicon Graphics, Inc. All Rights Reserved. ++// ++// This program is free software; you can redistribute it and/or modify it ++// under the terms of version 2 of the GNU General Public License as ++// published by the Free Software Foundation. ++// ++// This program is distributed in the hope that it would be useful, but ++// WITHOUT ANY WARRANTY; without even the implied warranty of ++// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Further, any ++// license provided herein, whether implied or otherwise, is limited to ++// this program in accordance with the express provisions of the GNU ++// General Public License. Patent licenses, if any, provided herein do not ++// apply to combinations of this program with other product or programs, or ++// any other product whatsoever. This program is distributed without any ++// warranty that the program is delivered free of the rightful claim of any ++// third person by way of infringement or the like. See the GNU General ++// Public License for more details. ++// ++// You should have received a copy of the GNU General Public License along ++// with this program; if not, write the Free Software Foundation, Inc., 59 ++// Temple Place - Suite 330, Boston MA 02111-1307, USA. ++ ++#ifndef DNotify_included ++#define DNotify_included ++ ++#include "config.h" ++#include "Monitor.h" ++#include <signal.h> ++ ++// DNotify is an object encapsulating the dnotify linux fcntl. ++// It "emulates" the IMon interface. ++// There can only be one instantiation of the DNotify object. ++// ++// The user of this object uses express() and revoke() to ++// express/revoke interest in a file. There is also ++// a callback, the EventHandler. When an dnotify event comes in, ++// the EventHandler is called. ++// ++// The user of the DNotify object is the Interest class. ++ ++class DNotify : public Monitor { ++public: ++ DNotify(EventHandler h); ++ ~DNotify(); ++ ++ static bool is_active(); ++ ++ virtual Status express(const char *name, struct stat *stat_return); ++ virtual Status revoke(const char *name, dev_t dev, ino_t ino); ++ ++private: ++ struct FileWatch; ++ struct DirWatch; ++ struct ChangeEventData; ++ ++ // Class Variables ++ enum { QUEUESIZE = 1024 }; ++ static int pipe_write_fd; ++ static int pipe_read_fd; ++ static int change_queue[QUEUESIZE]; ++ static volatile sig_atomic_t queue_overflowed; ++ static volatile sig_atomic_t queue_changed; ++ static volatile int queue_head; // Only modified by read handler ++ static volatile int queue_tail; // Only modified by signal handler ++ static EventHandler ehandler; ++ static void overflow_signal_handler(int sig, siginfo_t *si, void *data); ++ static void signal_handler(int sig, siginfo_t *si, void *data); ++ static void read_handler(int fd, void *closure); ++ ++ enum { DIR_HASHSIZE = 367 }; ++ static DirWatch *dir_hash[DIR_HASHSIZE]; ++ enum { FILE_HASHSIZE = 823 }; ++ static FileWatch *file_hash[FILE_HASHSIZE]; ++ ++ static DirWatch **dir_hashchain(int fd) ++ { return &dir_hash[(unsigned) (fd) % DIR_HASHSIZE]; } ++ static FileWatch **file_hashchain(dev_t d, ino_t i) ++ { return &file_hash[(unsigned) (d+i) % FILE_HASHSIZE]; } ++ ++ static DirWatch *lookup_dirwatch (int fd); ++ static DirWatch *lookup_dirwatch (dev_t dir_dev, ino_t dir_ino); ++ static FileWatch *lookup_filewatch (dev_t file_dev, ino_t file_ino); ++ static void hash_dirwatch(DirWatch *w); ++ static void hash_filewatch(FileWatch *w); ++ static void unhash_dirwatch(DirWatch *w); ++ static void unhash_filewatch(FileWatch *w); ++ static Status watch_dir(const char *notify_dir, dev_t file_dev, ino_t file_ino); ++ ++ static void all_watches_changed(void); ++ ++ DNotify(const DNotify&); // Do not copy ++ DNotify & operator = (const DNotify&); // or assign. ++}; ++ ++#endif /* !IMon_included */ ++ ++ +--- fam-2.7.0/src/Interest.c++ 2004-01-30 00:00:00.000000000 +0100 ++++ fam-2.7.0.dnotify/src/Interest.c++ 2004-01-30 00:00:00.000000000 +0100 +@@ -42,12 +42,21 @@ + #include "Event.h" + #include "FileSystem.h" + #include "IMon.h" ++#include "DNotify.h" + #include "Log.h" + #include "Pollster.h" + #include "timeval.h" + + Interest *Interest::hashtable[]; +-IMon Interest::imon(imon_handler); ++ ++#ifdef USE_DNOTIFY ++static DNotify dnotify(Interest::monitor_handler); ++Monitor * Interest::monitor = &dnotify; ++#else ++static IMon imon(Interest::monitor_handler); ++Monitor * Interest::monitor = &imon; ++#endif ++ + bool Interest::xtab_verification = true; + + Interest::Interest(const char *name, FileSystem *fs, in_addr host, ExportVerification ev) +@@ -60,10 +69,10 @@ + mypath_exported_to_host(ev == NO_VERIFY_EXPORTED) + { + memset(&old_stat, 0, sizeof(old_stat)); +- IMon::Status s = IMon::BAD; + +- s = imon.express(name, &old_stat); +- if (s != IMon::OK) ++ Monitor::Status s = Monitor::BAD; ++ s = monitor->express(name, &old_stat); ++ if (s != Monitor::OK) + { int rc = lstat(name, &old_stat); + if (rc < 0) + { Log::info("can't lstat %s", name); +@@ -100,7 +109,7 @@ + } + #endif + +- if (exported_to_host()) fs->ll_monitor(this, s == IMon::OK); ++ if (exported_to_host()) fs->ll_monitor(this, s == Monitor::OK); + } + + Interest::~Interest() +@@ -128,7 +137,7 @@ + pp = &p->hashlink; // move to next element + } + if (!found_same) +- (void) imon.revoke(name(), dev, ino); ++ (void) monitor->revoke(name(), dev, ino); + } + } + +@@ -147,7 +156,7 @@ + + // Express interest. + IMon::Status s = IMon::BAD; +- s = imon.express(name(), NULL); ++ s = monitor->express(name(), NULL); + if (s != IMon::OK) { + return true; + } +@@ -248,23 +257,23 @@ + } + + void +-Interest::imon_handler(dev_t device, ino_t inumber, int event) ++Interest::monitor_handler(dev_t device, ino_t inumber, int event) + { + assert(device || inumber); + + for (Interest *p = *hashchain(device, inumber), *next = p; p; p = next) + { next = p->hashlink; + if (p->ino == inumber && p->dev == device) +- { if (event == IMon::EXEC) ++ { if (event == Monitor::EXEC) + { p->cur_exec_state = EXECUTING; + (void) p->report_exec_state(); + } +- else if (event == IMon::EXIT) ++ else if (event == Monitor::EXIT) + { p->cur_exec_state = NOT_EXECUTING; + (void) p->report_exec_state(); + } + else +- { assert(event == IMon::CHANGE); ++ { assert(event == Monitor::CHANGE); + p->scan(); + } + } +--- fam-2.7.0/config.h.in 2003-01-20 01:40:15.000000000 +0100 ++++ fam-2.7.0.dnotify/config.h.in 2004-01-30 13:50:33.000000000 +0100 +@@ -180,3 +180,6 @@ + + /* Define to `int' if <sys/types.h> doesn't define. */ + #undef uid_t ++ ++/* Define to 1 if you have F_NOTIFY fcntl */ ++#undef USE_DNOTIFY +--- fam-2.7.0/configure.ac 2003-11-26 20:47:59.000000000 +0100 ++++ fam-2.7.0.dnotify/configure.ac 2004-01-30 13:50:33.000000000 +0100 +@@ -34,7 +34,26 @@ + AC_HEADER_DIRENT + AC_CHECK_HEADERS([fcntl.h limits.h linux/imon.h netinet/in.h rpc/rpc.h rpcsvc/mount.h stddef.h stdlib.h string.h syslog.h sys/imon.h sys/param.h sys/select.h sys/statvfs.h sys/syssgi.h sys/time.h sys/types.h sys/un.h unistd.h]) + +-if test "$have_sys_imon_h"; then ++# Test for the linux dnotify fcntl ++AC_MSG_CHECKING([for dnotify fcntl support]) ++AC_TRY_COMPILE([ ++#define _GNU_SOURCE ++#include <fcntl.h> ++#include <unistd.h> ++], ++[ int fd = 1; ++ fcntl (fd, F_NOTIFY, (DN_MODIFY|DN_CREATE|DN_DELETE|DN_RENAME|DN_ATTRIB) ++ |DN_MULTISHOT); ++], have_dnotify=yes, have_dnotify=no) ++ ++use_dnotify=false ++AC_MSG_RESULT($have_dnotify) ++ ++if test "$have_dnotify"; then ++ MONITOR_FUNCS=IMonNone ++ AC_DEFINE([USE_DNOTIFY], [], [Use dnotify]) ++ use_dnotify=true ++elif test "$have_sys_imon_h"; then + MONITOR_FUNCS=IMonIRIX + elif test "$have_linux_imon_h"; then + MONITOR_FUNCS=IMonLinux +@@ -42,6 +62,7 @@ + MONITOR_FUNCS=IMonNone + fi + AC_SUBST(MONITOR_FUNCS) ++AM_CONDITIONAL(USE_DNOTIFY, $use_dnotify) + + # Checks for typedefs, structures, and compiler characteristics. + AC_HEADER_STDBOOL +--- fam-2.7.0/src/IMon.h 2004-01-30 00:00:00.000000000 +0200 ++++ fam-2.7.0.dnotify/src/IMon.h 2004-01-30 00:00:00.000000000 +0200 +@@ -24,10 +24,7 @@ + #define IMon_included + + #include "config.h" +-#include <sys/stat.h> +-#include <sys/types.h> +- +-#include "Boolean.h" ++#include "Monitor.h" + + struct stat; + +@@ -41,25 +38,18 @@ + // + // The user of the IMon object is the Interest class. + +-class IMon { ++class IMon : public Monitor { + + public: +- +- enum Status { OK = 0, BAD = -1 }; +- enum Event { EXEC, EXIT, CHANGE }; +- +- typedef void (*EventHandler)(dev_t, ino_t, int event); +- + IMon(EventHandler h); + ~IMon(); + + static bool is_active(); + +- Status express(const char *name, struct stat *stat_return); +- Status revoke(const char *name, dev_t dev, ino_t ino); ++ virtual Status express(const char *name, struct stat *stat_return); ++ virtual Status revoke(const char *name, dev_t dev, ino_t ino); + + private: +- + // Class Variables + + static int imonfd; +--- fam-2.7.0/src/Interest.h 2004-01-30 00:00:00.000000000 +0200 ++++ fam-2.7.0.dnotify/src/Interest.h 2004-01-30 00:00:00.000000000 +0200 +@@ -32,7 +32,7 @@ + + class Event; + class FileSystem; +-class IMon; ++class Monitor; + struct stat; + + // Interest -- abstract base class for filesystem entities of interest. +@@ -74,7 +74,7 @@ + + // Public Class Method + +- static void imon_handler(dev_t, ino_t, int event); ++ static void monitor_handler(dev_t, ino_t, int event); + + static void enable_xtab_verification(bool enable); + +@@ -121,7 +121,7 @@ + + // Class Variables + +- static IMon imon; ++ static Monitor *monitor; + static Interest *hashtable[HASHSIZE]; + static bool xtab_verification; + +--- fam-2.7.0/src/Makefile.am 2003-01-19 13:00:17.000000000 +0100 ++++ fam-2.7.0.dnotify/src/Makefile.am 2004-01-30 13:50:38.000000000 +0100 +@@ -71,7 +71,11 @@ + main.c++ \ + timeval.c++ \ + timeval.h \ +- @MONITOR_FUNCS@.c++ ++ Monitor.h \ ++ DNotify.h \ ++ DNotify.c++ \ ++ @MONITOR_FUNCS@.c++ + +-EXTRA_famd_SOURCES = IMonIrix.c++ IMonLinux.c++ IMonNone.c++ ++EXTRA_famd_SOURCES = IMonIrix.c++ IMonLinux.c++ IMonNone.c++ DNotify.c++ \ ++ DNotify.h Monitor.h + +--- fam-2.7.0/src/Monitor.h 2004-01-30 00:00:00.000000000 +0200 ++++ fam-2.7.0.dnotify/src/Monitor.h 2004-01-30 00:00:00.000000000 +0200 +@@ -0,0 +1,57 @@ ++// Copyright (C) 2001 Red Hat, Inc. All Rights Reserved. ++// Copyright (C) 1999 Silicon Graphics, Inc. All Rights Reserved. ++// ++// This program is free software; you can redistribute it and/or modify it ++// under the terms of version 2 of the GNU General Public License as ++// published by the Free Software Foundation. ++// ++// This program is distributed in the hope that it would be useful, but ++// WITHOUT ANY WARRANTY; without even the implied warranty of ++// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Further, any ++// license provided herein, whether implied or otherwise, is limited to ++// this program in accordance with the express provisions of the GNU ++// General Public License. Patent licenses, if any, provided herein do not ++// apply to combinations of this program with other product or programs, or ++// any other product whatsoever. This program is distributed without any ++// warranty that the program is delivered free of the rightful claim of any ++// third person by way of infringement or the like. See the GNU General ++// Public License for more details. ++// ++// You should have received a copy of the GNU General Public License along ++// with this program; if not, write the Free Software Foundation, Inc., 59 ++// Temple Place - Suite 330, Boston MA 02111-1307, USA. ++ ++#ifndef Monitor_included ++#define Monitor_included ++ ++#include "config.h" ++#include <sys/stat.h> ++#include <sys/types.h> ++ ++struct stat; ++ ++// Monitor is an abstract baseclass for differend file monitoring ++// systems. The original system used was IMon, and the Montor API ++// is heavily influenced by that. ++// There can only be one instantiation of the Monitor object. ++// ++// The user of this object uses express() and revoke() to ++// express/revoke interest in a file to imon. There is also ++// a callback, the EventHandler. When an event comes in, ++// the EventHandler is called. ++// ++// The main implementers of the Monitor class is IMon and DNotify ++ ++class Monitor { ++public: ++ ++ enum Status { OK = 0, BAD = -1 }; ++ enum Event { EXEC, EXIT, CHANGE }; ++ ++ typedef void (*EventHandler)(dev_t, ino_t, int event); ++ ++ virtual Status express(const char *name, struct stat *stat_return) = 0; ++ virtual Status revoke(const char *name, dev_t dev, ino_t ino) = 0; ++}; ++ ++#endif /* !Monitor_included */ |