Check-in [c374111c37]
Overview
Comment:Added support for an "appfs-cache" script calling sqlite3 directly in appfsd
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | tcl-ops
Files: files | file ages | folders
SHA1:c374111c3789989554f0143845cdd829a583ec5c
User & Date: rkeene on 2014-11-07 04:52:29
Other Links: manifest | tags
Context
2014-11-07
05:06
Updated to include a Tcl interface via AppFSd check-in: 4b04c967f7 user: rkeene tags: tcl-ops
04:52
Added support for an "appfs-cache" script calling sqlite3 directly in appfsd check-in: c374111c37 user: rkeene tags: tcl-ops
2014-11-06
18:29
Minor update check-in: 5bd7399e05 user: rkeene tags: tcl-ops
Changes

Added appfs-cache version [8c72230216].





































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#! /usr/bin/env bash

case "$1" in
	invalidate)
		statement='UPDATE sites SET ttl = "0";'
		;;
	clear)
		rm -rf 
		statement='DELETE FROM sites; DELETE FROM packages; DELETE FROM files;'
		;;
	*)
		echo "Usage: appfs-cache {invalidate|clear}" >&2

		exit 1
		;;
esac

exec appfsd -sqlite3 "${statement}"

Modified appfsd.c from [169ff6cab0] to [206ee97d58].

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		struct {
			off_t size;
			char source[256];
		} symlink;
	} typeinfo;
};

static Tcl_Interp *appfs_create_TclInterp(const char *cachedir) {
	Tcl_Interp *interp;

	int tcl_ret;

	APPFS_DEBUG("Creating new Tcl interpreter for TID = 0x%llx", (unsigned long long) pthread_self());

	interp = Tcl_CreateInterp();
	if (interp == NULL) {
		fprintf(stderr, "Unable to create Tcl Interpreter.  Aborting.\n");
................................................................................
	Tcl_Interp *interp;
	int tcl_ret;

	APPFS_DEBUG("Enter: hostname = %s", hostname);

	interp = pthread_getspecific(interpKey);
	if (interp == NULL) {
		interp = appfs_create_TclInterp(globalThread.cachedir);

		if (interp == NULL) {
			return;
		}

		pthread_setspecific(interpKey, interp);
	}
................................................................................
static const char *appfs_getfile(const char *hostname, const char *sha1) {
	Tcl_Interp *interp;
	char *retval;
	int tcl_ret;

	interp = pthread_getspecific(interpKey);
	if (interp == NULL) {
		interp = appfs_create_TclInterp(globalThread.cachedir);

		if (interp == NULL) {
			return(NULL);
		}

		pthread_setspecific(interpKey, interp);
	}
................................................................................

static void appfs_update_manifest(const char *hostname, const char *sha1) {
	Tcl_Interp *interp;
	int tcl_ret;

	interp = pthread_getspecific(interpKey);
	if (interp == NULL) {
		interp = appfs_create_TclInterp(globalThread.cachedir);

		if (interp == NULL) {
			return;
		}

		pthread_setspecific(interpKey, interp);
	}
................................................................................

	return(retval);
}

/* Get information about a path, and optionally list children */
static int appfs_get_path_info(const char *_path, struct appfs_pathinfo *pathinfo, struct appfs_children **children) {
}



























static int appfs_fuse_getattr(const char *path, struct stat *stbuf) {
	struct appfs_pathinfo pathinfo;
	int res = 0;

	APPFS_DEBUG("Enter (path = %s, ...)", path);

................................................................................
	filler(buf, ".", NULL, 0);
	filler(buf, "..", NULL, 0);

	for (child = children; child; child = child->_next) {
		filler(buf, child->name, NULL, 0);
	}

	appfs_free_list_children(children);

	return(0);
}

static int appfs_fuse_open(const char *path, struct fuse_file_info *fi) {
	struct appfs_pathinfo pathinfo;
	const char *real_path;
	int fh;
	int gpi_ret;

	APPFS_DEBUG("Enter (path = %s, ...)", path);



	if ((fi->flags & 3) != O_RDONLY) {
                return(-EACCES);
	}

	gpi_ret = appfs_get_path_info(path, &pathinfo, NULL);
	if (gpi_ret != 0) {
................................................................................
	fh = open(real_path, O_RDONLY);
	free((void *) real_path);
	if (fh < 0) {
		return(-EIO);
	}

	fi->fh = fh;


	return(0);
}

static int appfs_fuse_close(const char *path, struct fuse_file_info *fi) {
	int close_ret;

................................................................................
	}

	read_ret = read(fi->fh, buf, size);

	return(read_ret);
}

static struct fuse_operations appfs_oper = {
	.getattr   = appfs_fuse_getattr,
	.readdir   = appfs_fuse_readdir,
	.readlink  = appfs_fuse_readlink,
	.open      = appfs_fuse_open,

	.release   = appfs_fuse_close,
	.read      = appfs_fuse_read
};



















int Appfsd_Init(Tcl_Interp *interp) {
#ifdef USE_TCL_STUBS
	if (Tcl_InitStubs(interp, TCL_VERSION, 0) == 0L) {
		return(TCL_ERROR);
	}
#endif

	Tcl_CreateObjCommand(interp, "appfsd::get_homedir", tcl_appfs_get_homedir, NULL, NULL);

	Tcl_PkgProvide(interp, "appfsd", "1.0");

	return(TCL_OK);
}










int main(int argc, char **argv) {
	const char *cachedir = APPFS_CACHEDIR;
	char dbfilename[1024];
	int pthread_ret, snprintf_ret;

	globalThread.cachedir = cachedir;
	globalThread.boottime = time(NULL);
	globalThread.options.writable = 1;

	Tcl_StaticPackage(NULL, "sha1", Sha1_Init, NULL);
	Tcl_StaticPackage(NULL, "appfsd", Appfsd_Init, NULL);
................................................................................
	pthread_ret = pthread_key_create(&interpKey, NULL);
	if (pthread_ret != 0) {
		fprintf(stderr, "Unable to create TSD key for Tcl.  Aborting.\n");

		return(1);
	}

	snprintf_ret = snprintf(dbfilename, sizeof(dbfilename), "%s/%s", cachedir, "cache.db");
	if (snprintf_ret >= sizeof(dbfilename)) {
		fprintf(stderr, "Unable to set database filename.  Aborting.\n");

		return(1);
	}

	return(fuse_main(argc, argv, &appfs_oper, NULL));
}
 







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		struct {
			off_t size;
			char source[256];
		} symlink;
	} typeinfo;
};

static Tcl_Interp *appfs_create_TclInterp(void) {
	Tcl_Interp *interp;
	const char *cachedir = globalThread.cachedir;
	int tcl_ret;

	APPFS_DEBUG("Creating new Tcl interpreter for TID = 0x%llx", (unsigned long long) pthread_self());

	interp = Tcl_CreateInterp();
	if (interp == NULL) {
		fprintf(stderr, "Unable to create Tcl Interpreter.  Aborting.\n");
................................................................................
	Tcl_Interp *interp;
	int tcl_ret;

	APPFS_DEBUG("Enter: hostname = %s", hostname);

	interp = pthread_getspecific(interpKey);
	if (interp == NULL) {
		interp = appfs_create_TclInterp();

		if (interp == NULL) {
			return;
		}

		pthread_setspecific(interpKey, interp);
	}
................................................................................
static const char *appfs_getfile(const char *hostname, const char *sha1) {
	Tcl_Interp *interp;
	char *retval;
	int tcl_ret;

	interp = pthread_getspecific(interpKey);
	if (interp == NULL) {
		interp = appfs_create_TclInterp();

		if (interp == NULL) {
			return(NULL);
		}

		pthread_setspecific(interpKey, interp);
	}
................................................................................

static void appfs_update_manifest(const char *hostname, const char *sha1) {
	Tcl_Interp *interp;
	int tcl_ret;

	interp = pthread_getspecific(interpKey);
	if (interp == NULL) {
		interp = appfs_create_TclInterp();

		if (interp == NULL) {
			return;
		}

		pthread_setspecific(interpKey, interp);
	}
................................................................................

	return(retval);
}

/* Get information about a path, and optionally list children */
static int appfs_get_path_info(const char *_path, struct appfs_pathinfo *pathinfo, struct appfs_children **children) {
}

static int appfs_fuse_readlink(const char *path, char *buf, size_t size) {
	struct appfs_pathinfo pathinfo;
	int res = 0;

	APPFS_DEBUG("Enter (path = %s, ...)", path);

	pathinfo.type = APPFS_PATHTYPE_INVALID;

	res = appfs_get_path_info(path, &pathinfo, NULL);
	if (res != 0) {
		return(res);
	}

	if (pathinfo.type != APPFS_PATHTYPE_SYMLINK) {
		return(-EINVAL);
	}

	if ((strlen(pathinfo.typeinfo.symlink.source) + 1) > size) {
		return(-ENAMETOOLONG);
	}

	memcpy(buf, pathinfo.typeinfo.symlink.source, strlen(pathinfo.typeinfo.symlink.source) + 1);

	return(0);
}

static int appfs_fuse_getattr(const char *path, struct stat *stbuf) {
	struct appfs_pathinfo pathinfo;
	int res = 0;

	APPFS_DEBUG("Enter (path = %s, ...)", path);

................................................................................
	filler(buf, ".", NULL, 0);
	filler(buf, "..", NULL, 0);

	for (child = children; child; child = child->_next) {
		filler(buf, child->name, NULL, 0);
	}

//	appfs_free_list_children(children);

	return(0);
}

static int appfs_fuse_open(const char *path, struct fuse_file_info *fi) {
	struct appfs_pathinfo pathinfo;
	const char *real_path;
	int fh;
	int gpi_ret;

	APPFS_DEBUG("Enter (path = %s, ...)", path);

#if 0

	if ((fi->flags & 3) != O_RDONLY) {
                return(-EACCES);
	}

	gpi_ret = appfs_get_path_info(path, &pathinfo, NULL);
	if (gpi_ret != 0) {
................................................................................
	fh = open(real_path, O_RDONLY);
	free((void *) real_path);
	if (fh < 0) {
		return(-EIO);
	}

	fi->fh = fh;
#endif

	return(0);
}

static int appfs_fuse_close(const char *path, struct fuse_file_info *fi) {
	int close_ret;

................................................................................
	}

	read_ret = read(fi->fh, buf, size);

	return(read_ret);
}

static int appfs_sqlite3(const char *sql) {
	Tcl_Interp *interp;
	const char *sql_ret;
	int tcl_ret;


	interp = appfs_create_TclInterp();
	if (interp == NULL) {

		fprintf(stderr, "Unable to create a Tcl interpreter.  Aborting.\n");

		return(1);
	}

	tcl_ret = appfs_Tcl_Eval(interp, 5, "::appfs::db", "eval", sql, "row", "unset -nocomplain row(*); parray row; puts \"----\"");
	sql_ret = Tcl_GetStringResult(interp);

	if (tcl_ret != TCL_OK) {
		fprintf(stderr, "[error] %s\n", sql_ret);

		return(1);
	}

	printf("%s\n", sql_ret);

	return(0);
}

static int Appfsd_Init(Tcl_Interp *interp) {
#ifdef USE_TCL_STUBS
	if (Tcl_InitStubs(interp, TCL_VERSION, 0) == 0L) {
		return(TCL_ERROR);
	}
#endif

	Tcl_CreateObjCommand(interp, "appfsd::get_homedir", tcl_appfs_get_homedir, NULL, NULL);

	Tcl_PkgProvide(interp, "appfsd", "1.0");

	return(TCL_OK);
}

static struct fuse_operations appfs_oper = {
	.getattr   = appfs_fuse_getattr,
	.readdir   = appfs_fuse_readdir,
	.readlink  = appfs_fuse_readlink,
	.open      = appfs_fuse_open,
	.release   = appfs_fuse_close,
	.read      = appfs_fuse_read
};

int main(int argc, char **argv) {
	const char *cachedir = APPFS_CACHEDIR;

	int pthread_ret;

	globalThread.cachedir = cachedir;
	globalThread.boottime = time(NULL);
	globalThread.options.writable = 1;

	Tcl_StaticPackage(NULL, "sha1", Sha1_Init, NULL);
	Tcl_StaticPackage(NULL, "appfsd", Appfsd_Init, NULL);
................................................................................
	pthread_ret = pthread_key_create(&interpKey, NULL);
	if (pthread_ret != 0) {
		fprintf(stderr, "Unable to create TSD key for Tcl.  Aborting.\n");

		return(1);
	}

	if (argc == 3 && strcmp(argv[1], "-sqlite3") == 0) {
		return(appfs_sqlite3(argv[2]));



	}

	return(fuse_main(argc, argv, &appfs_oper, NULL));
}
 

Modified appfsd.tcl from [1a0526f9cf] to [e0ad1bdba0].

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		if {![regexp {^[0-9a-f]*$} $value]} {
			return false
		}

		return true
	}

	proc _db {args} {
		return [uplevel 1 [list ::appfs::db {*}$args]]
	}

	proc _normalizeOS {os} {
		set os [string tolower [string trim $os]]

		switch -- $os {
			"linux" - "freebsd" - "openbsd" - "netbsd" {
				return $os
			}
................................................................................
		return -code error "Unable to normalize CPU: $cpu"
	}

	proc init {} {
		if {[info exists ::appfs::init_called]} {
			return
		}






		set ::appfs::init_called 1

		if {![info exists ::appfs::db]} {
			file mkdir $::appfs::cachedir

			sqlite3 ::appfs::db [file join $::appfs::cachedir cache.db]
		}

		# Create tables
		_db eval {CREATE TABLE IF NOT EXISTS sites(hostname PRIMARY KEY, lastUpdate, ttl);}
		_db eval {CREATE TABLE IF NOT EXISTS packages(hostname, sha1, package, version, os, cpuArch, isLatest, haveManifest);}
		_db eval {CREATE TABLE IF NOT EXISTS files(package_sha1, type, time, source, size, perms, file_sha1, file_name, file_directory);}

		# Create indexes
		_db eval {CREATE INDEX IF NOT EXISTS sites_index ON sites (hostname);}
		_db eval {CREATE INDEX IF NOT EXISTS packages_index ON packages (hostname, package, version, os, cpuArch);}
		_db eval {CREATE INDEX IF NOT EXISTS files_index ON files (package_sha1, file_name, file_directory);}
	}

	proc download {hostname hash {method sha1}} {
		set url "http://$hostname/appfs/$method/$hash"
		set file [_cachefile $url $hash]

		if {![file exists $file]} {
................................................................................

		return $file
	}

	proc getindex {hostname} {
		set now [clock seconds]

		set lastUpdates [_db eval {SELECT lastUpdate, ttl FROM sites WHERE hostname = $hostname LIMIT 1;}]
		if {[llength $lastUpdates] == 0} {
			set lastUpdate 0
			set ttl 0
		} else {
			set lastUpdate [lindex $lastUpdates 0]
			set ttl [lindex $lastUpdates 1]
		}
................................................................................
			}
			::http::reset $token
			::http::cleanup $token
		}

		if {![info exists indexhash_data]} {
			# Cache this result for 60 seconds
			_db eval {INSERT OR REPLACE INTO sites (hostname, lastUpdate, ttl) VALUES ($hostname, $now, $::appfs::nttl);}

			return -code error "Unable to fetch $url"
		}

		set indexhash [lindex [split $indexhash_data ","] 0]

		if {![_isHash $indexhash]} {
................................................................................
			if {![_isHash $pkgInfo(hash)]} {
				continue
			}

			lappend curr_packages $pkgInfo(hash)

			# Do not do any additional work if we already have this package
			set existing_packages [_db eval {SELECT package FROM packages WHERE hostname = $hostname AND sha1 = $pkgInfo(hash);}]
			if {[lsearch -exact $existing_packages $pkgInfo(package)] != -1} {
				continue
			}

			if {$pkgInfo(isLatest)} {
				_db eval {UPDATE packages SET isLatest = 0 WHERE hostname = $hostname AND package = $pkgInfo($package) AND os = $pkgInfo($package) AND cpuArch = $pkgInfo(cpuArch);}
			}

			_db eval {INSERT INTO packages (hostname, sha1, package, version, os, cpuArch, isLatest, haveManifest) VALUES ($hostname, $pkgInfo(hash), $pkgInfo(package), $pkgInfo(version), $pkgInfo(os), $pkgInfo(cpuArch), $pkgInfo(isLatest), 0);}
		}

		# Look for packages that have been deleted
		set found_packages [_db eval {SELECT sha1 FROM packages WHERE hostname = $hostname;}]
		foreach package $found_packages {
			set found_packages_arr($package) 1
		}

		foreach package $curr_packages {
			unset -nocomplain found_packages_arr($package)
		}

		foreach package [array names found_packages_arr] {
			_db eval {DELETE FROM packages WHERE hostname = $hostname AND sha1 = $package;}
		}

		_db eval {INSERT OR REPLACE INTO sites (hostname, lastUpdate, ttl) VALUES ($hostname, $now, $::appfs::ttl);}

		return COMPLETE
	}

	proc getpkgmanifest {hostname package_sha1} {
		set haveManifests [_db eval {SELECT haveManifest FROM packages WHERE sha1 = $package_sha1 LIMIT 1;}]
		set haveManifest [lindex $haveManifests 0]

		if {$haveManifest} {
			return COMPLETE
		}

		if {![_isHash $package_sha1]} {
................................................................................
		}

		set file [download $hostname $package_sha1]
		set fd [open $file]
		set pkgdata [read $fd]
		close $fd

		_db transaction {
			foreach line [split $pkgdata "\n"] {
				set line [string trim $line]

				if {$line == ""} {
					continue
				}

................................................................................
				}

				set fileInfo(name) [join $work ","]
				set fileInfo(name) [split [string trim $fileInfo(name) "/"] "/"]
				set fileInfo(directory) [join [lrange $fileInfo(name) 0 end-1] "/"]
				set fileInfo(name) [lindex $fileInfo(name) end]

				_db eval {INSERT INTO files (package_sha1, type, time, source, size, perms, file_sha1, file_name, file_directory) VALUES ($package_sha1, $fileInfo(type), $fileInfo(time), $fileInfo(source), $fileInfo(size), $fileInfo(perms), $fileInfo(sha1), $fileInfo(name), $fileInfo(directory) );}
				_db eval {UPDATE packages SET haveManifest = 1 WHERE sha1 = $package_sha1;}
			}
		}

		return COMPLETE
	}
}







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		if {![regexp {^[0-9a-f]*$} $value]} {
			return false
		}

		return true
	}





	proc _normalizeOS {os} {
		set os [string tolower [string trim $os]]

		switch -- $os {
			"linux" - "freebsd" - "openbsd" - "netbsd" {
				return $os
			}
................................................................................
		return -code error "Unable to normalize CPU: $cpu"
	}

	proc init {} {
		if {[info exists ::appfs::init_called]} {
			return
		}

		# Force [parray] to be loaded
		catch {
			parray does_not_exist
		}

		set ::appfs::init_called 1

		if {![info exists ::appfs::db]} {
			file mkdir $::appfs::cachedir

			sqlite3 ::appfs::db [file join $::appfs::cachedir cache.db]
		}

		# Create tables
		db eval {CREATE TABLE IF NOT EXISTS sites(hostname PRIMARY KEY, lastUpdate, ttl);}
		db eval {CREATE TABLE IF NOT EXISTS packages(hostname, sha1, package, version, os, cpuArch, isLatest, haveManifest);}
		db eval {CREATE TABLE IF NOT EXISTS files(package_sha1, type, time, source, size, perms, file_sha1, file_name, file_directory);}

		# Create indexes
		db eval {CREATE INDEX IF NOT EXISTS sites_index ON sites (hostname);}
		db eval {CREATE INDEX IF NOT EXISTS packages_index ON packages (hostname, package, version, os, cpuArch);}
		db eval {CREATE INDEX IF NOT EXISTS files_index ON files (package_sha1, file_name, file_directory);}
	}

	proc download {hostname hash {method sha1}} {
		set url "http://$hostname/appfs/$method/$hash"
		set file [_cachefile $url $hash]

		if {![file exists $file]} {
................................................................................

		return $file
	}

	proc getindex {hostname} {
		set now [clock seconds]

		set lastUpdates [db eval {SELECT lastUpdate, ttl FROM sites WHERE hostname = $hostname LIMIT 1;}]
		if {[llength $lastUpdates] == 0} {
			set lastUpdate 0
			set ttl 0
		} else {
			set lastUpdate [lindex $lastUpdates 0]
			set ttl [lindex $lastUpdates 1]
		}
................................................................................
			}
			::http::reset $token
			::http::cleanup $token
		}

		if {![info exists indexhash_data]} {
			# Cache this result for 60 seconds
			db eval {INSERT OR REPLACE INTO sites (hostname, lastUpdate, ttl) VALUES ($hostname, $now, $::appfs::nttl);}

			return -code error "Unable to fetch $url"
		}

		set indexhash [lindex [split $indexhash_data ","] 0]

		if {![_isHash $indexhash]} {
................................................................................
			if {![_isHash $pkgInfo(hash)]} {
				continue
			}

			lappend curr_packages $pkgInfo(hash)

			# Do not do any additional work if we already have this package
			set existing_packages [db eval {SELECT package FROM packages WHERE hostname = $hostname AND sha1 = $pkgInfo(hash);}]
			if {[lsearch -exact $existing_packages $pkgInfo(package)] != -1} {
				continue
			}

			if {$pkgInfo(isLatest)} {
				db eval {UPDATE packages SET isLatest = 0 WHERE hostname = $hostname AND package = $pkgInfo($package) AND os = $pkgInfo($package) AND cpuArch = $pkgInfo(cpuArch);}
			}

			db eval {INSERT INTO packages (hostname, sha1, package, version, os, cpuArch, isLatest, haveManifest) VALUES ($hostname, $pkgInfo(hash), $pkgInfo(package), $pkgInfo(version), $pkgInfo(os), $pkgInfo(cpuArch), $pkgInfo(isLatest), 0);}
		}

		# Look for packages that have been deleted
		set found_packages [db eval {SELECT sha1 FROM packages WHERE hostname = $hostname;}]
		foreach package $found_packages {
			set found_packages_arr($package) 1
		}

		foreach package $curr_packages {
			unset -nocomplain found_packages_arr($package)
		}

		foreach package [array names found_packages_arr] {
			db eval {DELETE FROM packages WHERE hostname = $hostname AND sha1 = $package;}
		}

		db eval {INSERT OR REPLACE INTO sites (hostname, lastUpdate, ttl) VALUES ($hostname, $now, $::appfs::ttl);}

		return COMPLETE
	}

	proc getpkgmanifest {hostname package_sha1} {
		set haveManifests [db eval {SELECT haveManifest FROM packages WHERE sha1 = $package_sha1 LIMIT 1;}]
		set haveManifest [lindex $haveManifests 0]

		if {$haveManifest} {
			return COMPLETE
		}

		if {![_isHash $package_sha1]} {
................................................................................
		}

		set file [download $hostname $package_sha1]
		set fd [open $file]
		set pkgdata [read $fd]
		close $fd

		db transaction {
			foreach line [split $pkgdata "\n"] {
				set line [string trim $line]

				if {$line == ""} {
					continue
				}

................................................................................
				}

				set fileInfo(name) [join $work ","]
				set fileInfo(name) [split [string trim $fileInfo(name) "/"] "/"]
				set fileInfo(directory) [join [lrange $fileInfo(name) 0 end-1] "/"]
				set fileInfo(name) [lindex $fileInfo(name) end]

				db eval {INSERT INTO files (package_sha1, type, time, source, size, perms, file_sha1, file_name, file_directory) VALUES ($package_sha1, $fileInfo(type), $fileInfo(time), $fileInfo(source), $fileInfo(size), $fileInfo(perms), $fileInfo(sha1), $fileInfo(name), $fileInfo(directory) );}
				db eval {UPDATE packages SET haveManifest = 1 WHERE sha1 = $package_sha1;}
			}
		}

		return COMPLETE
	}
}