AppFS
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Comment:Updated to create separate interpreters per thread
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SHA1: cf4ca88d48cdde7696d9b534228ac2b4efeb55da
User & Date: rkeene on 2014-09-09 07:33:57
Other Links: manifest | tags
Context
2014-09-09
07:51
Fixed bug where blank extraData was added check-in: 95ec92e5d0 user: rkeene tags: trunk
07:33
Updated to create separate interpreters per thread check-in: cf4ca88d48 user: rkeene tags: trunk
06:46
Implemented basic open() and read() check-in: a7c7a7a363 user: rkeene tags: trunk
Changes
Hide Diffs Side-by-Side Diffs Ignore Whitespace Patch

Modified appfs.c from [4ed6fa78a6] to [9a50e0345b]. 

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#define FUSE_USE_VERSION 26

#include <sys/types.h>
#include <sqlite3.h>
#include <pthread.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <fuse.h>
#include <tcl.h>

#define APPFS_CACHEDIR "/tmp/appfs-cache"

#define APPFS_DEBUG(x...) { fprintf(stderr, "[debug] %s:%i:%s: ", __FILE__, __LINE__, __func__); fprintf(stderr, x); fprintf(stderr, "\n"); }

static pthread_key_t interpKey;

struct appfs_thread_data {
	Tcl_Interp *interp;
	sqlite3 *db;
	const char *cachedir;
};

struct appfs_thread_data globalThread;

typedef enum {
	APPFS_OS_UNKNOWN,
	APPFS_OS_ALL,
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			return("arm");
		case APPFS_CPU_UNKNOWN:
			return("unknown");
	}

	return("unknown");
}

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

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

		return(NULL);
	}

	tcl_ret = Tcl_Init(interp);
	if (tcl_ret != TCL_OK) {
		fprintf(stderr, "Unable to initialize Tcl.  Aborting.\n");

		return(NULL);
	}

	tcl_ret = Tcl_Eval(interp, ""
#include "appfs.tcl.h"
	"");
	if (tcl_ret != TCL_OK) {
		fprintf(stderr, "Unable to initialize Tcl AppFS script.  Aborting.\n");
		fprintf(stderr, "Tcl Error is: %s\n", Tcl_GetStringResult(interp));

		return(NULL);
	}

	if (Tcl_SetVar(interp, "::appfs::cachedir", cachedir, TCL_GLOBAL_ONLY) == NULL) {
		fprintf(stderr, "Unable to set cache directory.  This should never fail.\n");

		return(NULL);
	}

	tcl_ret = Tcl_Eval(interp, "::appfs::init");
	if (tcl_ret != TCL_OK) {
		fprintf(stderr, "Unable to initialize Tcl AppFS script (::appfs::init).  Aborting.\n");
		fprintf(stderr, "Tcl Error is: %s\n", Tcl_GetStringResult(interp));

		return(NULL);
	}

	return(interp);
}

static int appfs_Tcl_Eval(Tcl_Interp *interp, int objc, const char *cmd, ...) {
	Tcl_Obj **objv;
	const char *arg;
	va_list argp;
	int retval;
	int i;
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	for (i = 0; i < objc; i++) {
		Tcl_DecrRefCount(objv[i]);
	}

	ckfree((void *) objv);

	if (retval != TCL_OK) {
		APPFS_DEBUG("Tcl command failed, ::errorInfo contains: %s\n", Tcl_GetVar(interp, "::errorInfo", 0));
	}

	return(retval);
}

static int appfs_update_index(const char *hostname) {
static void appfs_update_index(const char *hostname) {
	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);

		pthread_setspecific(interpKey, interp);
	}

	tcl_ret = appfs_Tcl_Eval(globalThread.interp, 2, "::appfs::getindex", hostname);
	tcl_ret = appfs_Tcl_Eval(interp, 2, "::appfs::getindex", hostname);
	if (tcl_ret != TCL_OK) {
		APPFS_DEBUG("Call to ::appfs::getindex failed: %s", Tcl_GetStringResult(globalThread.interp));
		APPFS_DEBUG("Call to ::appfs::getindex failed: %s", Tcl_GetStringResult(interp));

		return(-1);
		return;
	}

	return(0);
	return;
}

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);

		pthread_setspecific(interpKey, interp);
	}

	tcl_ret = appfs_Tcl_Eval(globalThread.interp, 3, "::appfs::download", hostname, sha1);
	tcl_ret = appfs_Tcl_Eval(interp, 3, "::appfs::download", hostname, sha1);
	if (tcl_ret != TCL_OK) {
		APPFS_DEBUG("Call to ::appfs::download failed: %s", Tcl_GetStringResult(globalThread.interp));
		APPFS_DEBUG("Call to ::appfs::download failed: %s", Tcl_GetStringResult(interp));

		return(NULL);
	}

	retval = strdup(Tcl_GetStringResult(globalThread.interp));
	retval = strdup(Tcl_GetStringResult(interp));

	return(retval);
}

static int appfs_update_manifest(const char *hostname, const char *sha1) {
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);

		pthread_setspecific(interpKey, interp);
	}

	tcl_ret = appfs_Tcl_Eval(globalThread.interp, 3, "::appfs::getpkgmanifest", hostname, sha1);
	tcl_ret = appfs_Tcl_Eval(interp, 3, "::appfs::getpkgmanifest", hostname, sha1);
	if (tcl_ret != TCL_OK) {
		APPFS_DEBUG("Call to ::appfs::getpkgmanifest failed: %s", Tcl_GetStringResult(globalThread.interp));
		APPFS_DEBUG("Call to ::appfs::getpkgmanifest failed: %s", Tcl_GetStringResult(interp));

		return(-1);
		return;
	}

	return(0);
	return;
}


#define appfs_free_list_type(id, type) static void appfs_free_list_ ## id(type *head) { \
	type *obj, *next; \
	for (obj = head; obj; obj = next) { \
		next = obj->_next; \
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	return(0);
}

static struct appfs_package *appfs_getindex(const char *hostname, int *package_count_p) {
	struct appfs_package *head = NULL;
	char *sql;
	int index_ret, sqlite_ret;
	int sqlite_ret;

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

	index_ret = appfs_update_index(hostname);
	appfs_update_index(hostname);
	if (index_ret != 0) {
		return(NULL);
	}

	sql = sqlite3_mprintf("SELECT package, version, sha1, os, cpuArch, isLatest FROM packages WHERE hostname = %Q;", hostname);
	if (sql == NULL) {
		APPFS_DEBUG("Call to sqlite3_mprintf failed.");

		return(NULL);
	}
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	return(0);
	
}

static struct appfs_children *appfs_getchildren(const char *hostname, const char *package_hash, const char *path, int *children_count_p) {
	struct appfs_children *head = NULL;
	char *sql;
	int index_ret, sqlite_ret, manifest_ret;
	int sqlite_ret;

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

	index_ret = appfs_update_index(hostname);
	appfs_update_index(hostname);
	if (index_ret != 0) {
		return(NULL);
	}

	manifest_ret = appfs_update_manifest(hostname, package_hash);
	appfs_update_manifest(hostname, package_hash);
	if (manifest_ret != 0) {
		return(NULL);
	}

	sql = sqlite3_mprintf("SELECT file_name FROM files WHERE package_sha1 = %Q AND file_directory = %Q;", package_hash, path);
	if (sql == NULL) {
		APPFS_DEBUG("Call to sqlite3_mprintf failed.");

		return(NULL);
	}
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	return(0);
}

static char *appfs_lookup_package_hash(const char *hostname, const char *package, appfs_os_t os, appfs_cpuArch_t cpuArch, const char *version) {
	char *sql;
	char *retval = NULL;
	int index_ret, sqlite_ret;
	int sqlite_ret;

	index_ret = appfs_update_index(hostname);
	appfs_update_index(hostname);
	if (index_ret != 0) {
		return(NULL);
	}

	sql = sqlite3_mprintf("SELECT sha1 FROM packages WHERE hostname = %Q AND package = %Q AND os = %Q AND cpuArch = %Q AND version = %Q;",
		hostname,
		package,
		appfs_convert_os_toString(os),
		appfs_convert_cpuArch_toString(cpuArch),
		version
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	/* Until this is used, prevent the compiler from complaining */
	source = source;
}

static int appfs_getfileinfo(const char *hostname, const char *package_hash, const char *_path, struct appfs_pathinfo *pathinfo) {
	char *directory, *file, *path;
	char *sql;
	int index_ret, sqlite_ret, manifest_ret;
	int sqlite_ret;

	if (pathinfo == NULL) {
		return(-EIO);
	}

	index_ret = appfs_update_index(hostname);
	appfs_update_index(hostname);
	if (index_ret != 0) {
		return(-EIO);
	}

	manifest_ret = appfs_update_manifest(hostname, package_hash);
	appfs_update_manifest(hostname, package_hash);
	if (manifest_ret != 0) {
		return(-EIO);
	}

	path = strdup(_path);
	directory = path;
	file = strrchr(path, '/');
	if (file == NULL) {
		file = path;
		directory = "";
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	.read		= appfs_fuse_read
};
#endif

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

	globalThread.interp = Tcl_CreateInterp();
	if (globalThread.interp == NULL) {
	globalThread.cachedir = cachedir;
		fprintf(stderr, "Unable to create Tcl Interpreter.  Aborting.\n");

		return(1);
	}

	pthread_ret = pthread_key_create(&interpKey, NULL);
	tcl_ret = Tcl_Init(globalThread.interp);
	if (tcl_ret != TCL_OK) {
		fprintf(stderr, "Unable to initialize Tcl.  Aborting.\n");
	if (pthread_ret != 0) {
		fprintf(stderr, "Unable to create TSD key for Tcl.  Aborting.\n");

		return(1);
	}

	tcl_ret = Tcl_Eval(globalThread.interp, ""
#include "appfs.tcl.h"
	"");
	if (tcl_ret != TCL_OK) {
		fprintf(stderr, "Unable to initialize Tcl AppFS script.  Aborting.\n");
		fprintf(stderr, "Tcl Error is: %s\n", Tcl_GetStringResult(globalThread.interp));

		return(1);
	}

	if (Tcl_SetVar(globalThread.interp, "::appfs::cachedir", cachedir, TCL_GLOBAL_ONLY) == NULL) {
		fprintf(stderr, "Unable to set cache directory.  This should never fail.\n");

		return(1);
	}

	tcl_ret = appfs_Tcl_Eval(globalThread.interp, 1, "::appfs::init");
	if (tcl_ret != TCL_OK) {
		fprintf(stderr, "Unable to initialize Tcl AppFS script (::appfs::init).  Aborting.\n");
		fprintf(stderr, "Tcl Error is: %s\n", Tcl_GetStringResult(globalThread.interp));

		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");
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